| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 166227000 | SCREENS | 76 |
| 20080264628 | Restrictor Valve Mounting for Downhole Screens - In one aspect of the invention a valve that operates in association with a downhole screen is threaded into the wall of a base pipe after being inserted through a saddle. When the valve body is threaded in, the engagement into the wall threads in the base pipe acts as a sealing force on a ring seal between the saddle and the base pipe and between the valve body and the saddle. The valve itself can be outfitted with a cover with openings that can be integral or removable and disposed at the end of the valve that is innermost to the base pipe. Preferably a series of elongated slots are used that can catch slurry if the well is to be killed while allowing subsequent production to drive the accumulated solids from well killing back into the base pipe. Another feature places the valve in a base pipe opening under a cylindrical screen section to reduce assembly time and cost of constructing an adjacent housing to one side of the cylindrical screen section to accommodate the valve. | 10-30-2008 |
| 20090078408 | Apparatus for Providing a Temporary Degradable Barrier in a Flow Pathway - A flow conduit may have at least one orifice is in the vicinity of a flow source. The source is at least partially covered (and flow blocked by) an optional temporary coating or barrier. The flow pathway between the orifice and the source is temporarily blocked with a degradable material or barrier. The material disintegrates (e.g. under the influence of time or temperature) to optionally produce a product that removes the temporary coating in the area adjacent the barrier. The method is useful in one non-limiting context of recovering hydrocarbons where the flow conduit is the casing or liner of the well and the flow source is a subterranean reservoir where the temporary coating is a filter cake. | 03-26-2009 |
| 20090242193 | Downhole Tools - There is provided a cutting tool ( | 10-01-2009 |
| 20100018697 | Securement of Lines to Well Sand Control Screens - Systems and methods for securing lines to well sand control screens. A method of securing at least one line to a tubular string includes connecting together longitudinal ends of longitudinal sections of the tubular string; then wrapping a shroud circumferentially about the connected tubular string sections; and securing the line to the shroud. A well screen assembly includes a generally tubular filter portion, a shroud wrapped circumferentially about the filter portion, and a retainer which connects opposite circumferential ends of the shroud to each other without being welded to at least one of the shroud ends, with the retainer being positioned on an interior of the shroud. Another well screen assembly includes multiple longitudinal sections of a tubular string, at least one of the longitudinal sections comprising a well screen, and a shroud wrapped circumferentially about the tubular string sections and rotationally secured to the tubular string. | 01-28-2010 |
| 20100206551 | Downhole Filter Tool - Apparatus for downhole filtration in a wellbore The apparatus has a diverter and a filter slidably mounted on a mandrel. The diverter has a circumferential wiper element between the mandrel and the casing within which the apparatus is run. When fluids are reverse circulated, or the tool is being pulled out, the diverter shifts to a downward position, wherein it seals against an upper end of the filter, filtering out solids in the fluids and retaining them in a chamber between the sleeve and mandrel. When running the tool into a wellbore, the diverter shifts to an upper position to permit fluids to bypass the filter sleeve. The filter sleeve bears against a spring loaded seat, which permits creating a gap between the diverter and an upper end of the filter sleeve to allow fluids to bypass the filter sleeve should the filter sleeve slots become plugged. | 08-19-2010 |
| 20110036565 | Control Screen Assembly - Screen assemblies capable of being disposed in a bore for hydrocarbon fluid production are described. The screen assemblies can support filter mediums and reduce or eliminate plugging by swellable material. One screen assembly includes filter mediums supported by a rigid member located exterior to a portion of a base pipe. The rigid member can include openings through which the filter mediums can be in fluid communication with an inner diameter of the base pipe. Swellable material can be disposed exterior to a second portion of the base pipe adjacent to the rigid member. The filter mediums can be displaced to contact a wellbore and the rigid members can help reduce or prevent plugging of screen assembly openings. | 02-17-2011 |
| 20110036566 | ATTACHMENT OF CONTROL LINES TO OUTSIDE OF TUBULAR - Disclosed is a downhole apparatus including a tubular and at least one support extending radially outwardly of an outer surface of a radially outward most member of the tubular. At least one cover is secured to the at least one support defining a protected space between the at least one cover and the outer surface. Further disclosed is a downhole tubular system including at least two tubular apparatus, each tubular apparatus including at least one tubular and at least one support extending radially outwardly of an outer surface of a radially outward most member of the tubular. At least one cover is secured to the at least one support defining a protected space between the at least one cover and the outer surface. The system further includes at least one coupling clamp located at a coupling of the at least two tubular apparatus. | 02-17-2011 |
| 20110168387 | Resilient Foam Debris Barrier - A space filler material is used to prevent accumulation of debris that could later foul the operation of adjacent moving parts. In one application a void space that is subsequently closed by actuated parts is initially filled with a material that is highly compressible and has voids that allow it to compress without undue resistance to part movement when the void volume is reduced. Ideally, the pores or voids in the material itself are small enough to keep most if not all the debris from entering and making the space filling material too rigid to collapse under part movement. In an alternative application, the material can be in an annular space such as a seal bore and it can keep debris from getting past the seal bore while allowing hydrostatic pressure across itself thereby helping it to maintain its position until moved such as by shifting of an inner string to which it is attached. | 07-14-2011 |
| 20110174481 | Connector for Mounting Screen to Base Pipe without Welding or Swaging - A subterranean screen system features openings in a base pipe and sleeve sections of a porous material that preferably swells in the borehole to span an annular space around the base pipe. Retainers are mounted to the base pipe in a desired location and mechanically fixated using an internal grip system actuated through the wall of the retainer. A wedging action of slip segments is initiated by an angularly advancing assembly through the wall of the retainer. The retainer can have end rings extending past one or both ends over which the screen sleeve extends. Flat or ridges on the exterior of the retainer or end rings make assembly easier with hand tools to allow for rapid field assembly, if needed. Filtration occurs through the sleeves that abut the borehole wall and into the base pipe openings and to the surface. | 07-21-2011 |
| 20110232901 | VARIABLE Tg SHAPE MEMORY POLYURETHANE FOR WELLBORE DEVICES - Wellbore devices for use in filtration, wellbore isolation, production control, lifecycle management and wellbore construction may include at least a first and a second shape-memory material each having a an altered geometric position and each an original geometric position. Each shape-memory material may include a polyurethane material held in the altered geometric run-in position at a temperature below glass transition temperature (T | 09-29-2011 |
| 20110247800 | DOWNHOLE FILTER TOOL - Apparatus for downhole filtration of fluids in a wellbore. The apparatus has a diverter and a filter slidably mounted on a mandrel. The diverter has a circumferential wiper element between the mandrel and the casing within which the apparatus is run. When fluids are reverse circulated, or the tool is being pulled out, the diverter shifts to a downward position, wherein it seals against an upper end of the filter, filtering out solids in the fluids and retaining them in a chamber between the sleeve and mandrel. When running the tool into a wellbore, the diverter shifts to an upper position to permit fluids to bypass the filter sleeve. The filter sleeve bears against a spring loaded seat, which permits creating a gap between the diverter and an upper end of the filter sleeve to allow fluids to bypass the filter sleeve should the filter sleeve slots become plugged. | 10-13-2011 |
| 20120073801 | Sand Control Screen Assembly Having a Mechanically Attached Screen Jacket - A sand control screen assembly ( | 03-29-2012 |
| 20120111558 | DOWNHOLE FILTER TOOL - Apparatus for downhole filtration of fluids in a wellbore. The apparatus has a diverter and a filter slidably mounted on a mandrel. The diverter has a circumferential wiper element between the mandrel and the casing within which the apparatus is run. When fluids are reverse circulated, or the tool is being pulled out, the diverter shifts to a downward position, wherein it seals against an upper end of the filter, filtering out solids in the fluids and retaining them in a chamber between the sleeve and mandrel. When running the tool into a wellbore, the diverter shifts to an upper position to permit fluids to bypass the filter sleeve. The filter sleeve bears against a spring loaded seat, which permits creating a gap between the diverter and an upper end of the filter sleeve to allow fluids to bypass the filter sleeve should the filter sleeve slots become plugged. | 05-10-2012 |
| 20120138287 | METHOD OF MANUFACTURING A WELL SCREEN - An expanded non-bonded mesh well screen. A method of manufacturing a well screen includes the steps of: expanding at least a portion of a screen jacket; and then securing the screen jacket onto a base pipe. A well screen system includes a base pipe and an at least partially expanded screen jacket surrounding the base pipe. The screen jacket is expanded prior to being positioned on the base pipe. | 06-07-2012 |
| 20120152528 | Sand Control Screen Assembly Having a Compliant Drainage Layer - A sand control screen assembly ( | 06-21-2012 |
| 20120217005 | METHOD AND APPARATUS FOR REDUCING LINER SLOT PLUGGING TENDENCIES - A slotted liner having straight-cut liner slots with a wall roughness which does not exceed 1 μm. A slot cutting method to produce smooth slots using a specified blade configuration, rotational speed, and feed rate. | 08-30-2012 |
| 20120298352 | Control Screen Assembly - Screen assemblies capable of being disposed in a bore for hydrocarbon fluid production are described. The screen assemblies can support filter mediums and reduce or eliminate plugging by swellable material. One screen assembly includes filter mediums supported by a rigid member located exterior to a portion of a base pipe. The rigid member can include openings through which the filter mediums can be in fluid communication with an inner diameter of the base pipe. Swellable material can be disposed exterior to a second portion of the base pipe adjacent to the rigid member. The filter mediums can be displaced to contact a wellbore and the rigid members can help reduce or prevent plugging of screen assembly openings. | 11-29-2012 |
| 20130032330 | Snap Mount Annular Debris Barrier - A debris barrier snap fits to a tubular groove of one of the tubulars that define the annular gap in which the barrier is to be mounted. It is loosely mounted so that it can center itself in the annulus as the relatively moving members go out of a concentric arrangement. The continuous carbon fiber material used for the debris barrier has lubricious qualities to act as a bushing when the annulus shape changes due to movement of the tubulars out of a concentric relationship. An outer or inner groove on the barrier acts to trap and retain small particles that manage to advance between the barrier and the outer tubular. The snap fit is accomplished with flexible spaced apart fingers with grip surfaces to engage a groove on one of the tubulars. The barrier has low expansion under thermal loads to retain the clearance that acts to stop the entrance of debris. | 02-07-2013 |
| 20130032331 | Reorienting Annular Debris Barrier - A debris barrier snap fits to a tubular groove of one of the tubulars that define the annular gap in which the barrier is to be mounted. It is loosely mounted so that it can center itself in the annulus as the relatively moving members go out of a concentric arrangement. The continuous carbon fiber material used for the debris barrier has lubricious qualities to act as a bushing when the annulus shape changes due to movement of the tubulars out of a concentric relationship. An outer or inner groove on the barrier acts to trap and retain small particles that manage to advance between the barrier and the outer tubular. The snap fit is accomplished with flexible spaced apart fingers with grip surfaces to engage a groove on one of the tubulars. The barrier has low expansion under thermal loads to retain the clearance that acts to stop the entrance of debris. | 02-07-2013 |
| 20130112400 | WELLBORE FLUID TREATMENT AND METHOD - A wellbore screen including: an apertured base pipe; an intermediate filtering layer including a plurality of metal fibers wrapped helically around the apertured base pipe and a fluid tracing filament wrapped helically about the apertured base pipe, the fluid tracing filament including a filament structure and a tracer carried by the filament structure, the tracer being entrainable in produced fluids in a wellbore environment; and an outer apertured shell over the intermediate layer. A method for producing a wellbore screen, the method comprising: forming a filter tube by wrapping an intermediate layer, including a metal wool fiber strip and a fluid tracing filament, about an apertured base pipe in a helical arrangement under tension; positioning the filter tube within the long bore of an outer apertured sleeve; and securing the outer apertured sleeve and the filter tube together. | 05-09-2013 |
| 20130206393 | ECONOMICAL CONSTRUCTION OF WELL SCREENS - A well screen for use in a subterranean well can include a loose filter media, a sandstone, a square weave mesh material, a foam, and/or a nonmetal mesh material. A method of installing a well screen in a subterranean well can include dispersing a material in a filter media of the well screen, after the well screen has been installed in the well, thereby permitting a fluid to flow through the filter media. A method of constructing a well screen can include positioning a loose filter media in an annular space between a base pipe and a shroud, so that the filter media filters fluid which flows through a wall of the base pipe. | 08-15-2013 |
| 20130228327 | Debris Catcher for Retrievable Barrier - A basket is attached below a retrievable bridge plug used during the pressure testing of a well to verify integrity prior to fracturing operations. After the pressure integrity test above the plug, the plug is released and retrieved and a series of balls of increasing diameter are dropped on increasingly larger ball seats to allow shifting sleeves to an open position from the heel of the well toward the surface to sequentially frac in that direction. If any segments of the sealing element break off they are captured and removed in the basket that has flow through opening small enough to retain the debris and allow flow through the basket during removal. The basket is slotted for through fluid flow and can have a breakaway for the support rod if the basket sticks when the plug is removed. | 09-05-2013 |
| 20140076540 | Expandable Screen by Spring Force - A sand control screen assembly selectively positionable within a wellbore. The sand control screen assembly comprises a pipe having an internal flow path, an external fluid collection subassembly in fluid communication with the internal flow path, a filter medium disposed in a fluid path between the exterior of the sand control screen assembly and the internal flow path, a biasing mechanism, configured to bias the fluid collection subassembly towards a wall of the wellbore, disposed between the fluid collection subassembly and the pipe, and a retaining mechanism configured to release the biasing mechanism in response to a trigger. | 03-20-2014 |
| 20140116681 | Retrievable Filter Screen Assembly - A retrievable filter screen assembly is provided, comprising a nonmagnetic carrier sub suspended from a first pulling tool connected to a wireline; a nonmagnetic filter screen disposed within the carrier sub, and having a first end supported by a bell housing operatively positioned within the carrier sub, and wherein the first end of the filter screen can be disconnected from the bell housing via shear pins; wherein the filter screen further includes a second end adapted to receive a second pulling tool positionable within the carrier sub, and wherein the pulling tool is connectable to an MWD source. | 05-01-2014 |
| 20140326447 | PERFORATED PIPE AND APPARATUS, SYSTEM AND METHOD FOR PERFORATING A PIPE - A pipe and system for forming perforations in a pipe are provided. The pipe is for a well bore for filtering materials transported through the pipe and comprises: a wall having an exterior surface and an interior surface, the wall forming the pipe and shaped in a cylinder; and a perforation located in the wall, the perforation for receiving sediment in the materials and forming an aperture in the wall from the exterior surface to the interior surface with a first opening on the exterior surface having a first dimension across a first major axis of the first opening and a second opening on the interior surface having a second dimension across a second major axis of the second opening. The first opening is shaped to be either round, oval, elliptical or racetrack. | 11-06-2014 |
| 166228000 | Porous material | 15 |
| 20080283238 | Apparatus for autonomously controlling the inflow of production fluids from a subterranean well - A flow control apparatus ( | 11-20-2008 |
| 20090008084 | METHOD AND APPARATUS FOR CONNECTING SHUNT TUBES TO SAND SCREEN ASSEMBLIES - Method and apparatus are disclosed for connecting internal shunt tubes to tubular end components of a sand screen assembly by coupling each end of each shunt tube to ports formed in the tubular end components in an annular space between a base pipe and a filter media using a tubular coupler. | 01-08-2009 |
| 20090014174 | Use of coated slots for control of sand or other solids in wells completed for production of fluids - The present invention relates to an approach to reducing or eliminating the plugging of slots in a slotted liner while otherwise allowing the liner to function in its normal capacity as a solids exclusion device which permits the reservoir fluids to flow through relatively freely. The approach taught by the present invention involves coating the surface of the slot with a suitable material. The coating at least partially covers the irregularities that are formed on the slot surfaces as a consequence of the slot manufacturing process. The presence of the coating results in a markedly reduced slot plugging problem while still enabling the slot to perform its main function in excluding or inhibiting the inflow of larger particles and allowing the inflow of fluids. | 01-15-2009 |
| 20110036567 | Swellable Screen Assembly - Screen assemblies capable of being disposed in a wellbore for hydrocarbon fluid production are described. The screen assemblies can support tubes for receiving hydrocarbon fluid and reduce or eliminate plugging of the tubes by swellable material. A screen assembly may include a support material between a tube and swellable material located exterior to a base pipe. The tube may include perforations and can receive and direct hydrocarbon fluids from the formation. The swellable material can expand after contact with an activating fluid and can displace the tube toward a surface of the bore. The swellable material can expand more than the support material and the support material can reduce or prevent plugging of the perforations by the swellable material expanding. | 02-17-2011 |
| 20110079384 | Flow Control Device That Substantially Decreases Flow of a Fluid When a Property of the Fluid is in a Selected Range - An apparatus for controlling flow of fluid from a reservoir into a wellbore is provided, which apparatus in one embodiment may include a flow-through region configured to substantially increase value of a selected parameter relating to the flow-through region when selected parameter is in a first range and maintain a substantially constant value of the selected parameter when the selected property of the fluid is in a second range. | 04-07-2011 |
| 20110132599 | Apparatus for Isolating and Completing Multi-Zone Frac Packs - A plurality of zones is gravel packed together and then isolated from each other in the gravel annulus by formation of a barrier in the gravel annulus. The screen assembly carries a series of chambers internally that are located between the producing zones generally in the area of blank pipe between the zones. The wash pipe has a shifter associated with it so that extraction of the wash pipe after gravel packing will serially shift pistons that reduce chamber volume where the chemical is stored. The chemical will exit through a rupture disc and nozzle and will commingle with the gravel and make an impervious annular barrier. | 06-09-2011 |
| 20110308787 | Downhole Fluid Filter - An apparatus for testing a subterranean formation penetrated by a wellbore, comprising a tool having a sample flow line an inlet disposed with the tool and configured to establish fluid communication between the formation and the sample flow line to draw a fluid sample into the sample flow line, and an active filter positioned in the sample flow line and providing a filter flow route and a bypass flow route in the sample flow line. | 12-22-2011 |
| 20120211223 | SAND SCREEN, EXPANDABLE SCREEN AND METHOD OF MAKING - An expandable screen includes, a body constructed of one or more strands of a shape memory material randomly distributed in a mat structure, the body is stable at a first volume and expandable to a second volume upon a change in environment. | 08-23-2012 |
| 20130175026 | NANOCOMPOSITES FOR ABSORPTION TUNABLE SANDSCREENS - A downhole filter comprising includes an open cell foam; and nanoparticles disposed in the open cell foam and exposed within pores of the open cell foam. A method of preparing the downhole filter includes combining a polyisocyanate and polyol to form a polymer composition; introducing nanoparticles into the polymer composition; and foaming the polymer composition to produce the downhole filter comprising an open cell foam having nanoparticles exposed within pores of the open cell foam. The nanoparticles can be derivatized with functional groups. | 07-11-2013 |
| 20140000871 | Porous Medium Screen | 01-02-2014 |
| 20140158344 | Down-Hole Sand and Solids Separator Utilized in Producing Hydrocarbons - A new method separating sand, solids, and produced particulates down-hole in a well producing hydrocarbons. The separation assembly can include ether one, two, or more segments or stages of varying lengths depending upon the individual application. The assembly is installed into the tubing string or delivery conduit of a well producing hydrocarbons. One stage can consist of a velocity chamber whereby separation of particulates occurs by increasing the downward velocity of particulates and reducing the upward velocity of hydrocarbons thereby allowing the particulates to “fall-out” into a lower chamber where the particulates are captured. Another stage can consist of a filter whereby particulates are captured in a chamber that can consist of filtering materials such as gravel, rock, sand, wood, or manmade materials. Each of the stages can be employed individually or in combination. | 06-12-2014 |
| 20150013966 | Flow Control Devices Including a Sand Screen Having Integral Standoffs and Methods of Using the Same - In one aspect, a flow control device is disclosed that in one embodiment may include a sand screen that includes adjacent wraps of a longitudinal member, wherein the longitudinal member has a width, a first axial side and a second axial side, the longitudinal member further including spaced apart standoffs along the first axial side and spaced apart channels that provide fluid paths from the second axial side to the first axial side. | 01-15-2015 |
| 20150034301 | ECONOMICAL CONSTRUCTION OF WELL SCREENS - A well screen for use in a subterranean well can include a loose filter media, a sandstone, a square weave mesh material, a foam, and/or a nonmetal mesh material. A method of installing a well screen in a subterranean well can include dispersing a material in a filter media of the well screen, after the well screen has been installed in the well, thereby permitting a fluid to flow through the filter media. A method of constructing a well screen can include positioning a loose filter media in an annular space between a base pipe and a shroud, so that the filter media filters fluid which flows through a wall of the base pipe. | 02-05-2015 |
| 20150129199 | NANO-PARTICLE REINFORCED SCREEN - A well screen for use in a subterranean well can include a filter with a nano-particle reinforcement. A method of constructing a well screen can include treating a filter with a nano-particle reinforcement. | 05-14-2015 |
| 20150352660 | BEADED MATRIX AND METHOD OF PRODUCING THE SAME - A method for making a beaded matrix includes positioning two or more beads near one another. Accelerating the two or more beads toward one another; and impacting the two or more beads with one another so that electrons are shared between molecules thereby fusing the two or more beads together. | 12-10-2015 |
| 166229000 | Inserted screen plug | 5 |
| 20090101335 | DEVICE AND SYSTEM FOR WELL COMPLETION AND CONTROL AND METHOD FOR COMPLETING AND CONTROLLING A WELL - A fluid media tell-tale configuration including a tubular having an inside surface with which a fluid media will make contact during application of the fluid media to a target destination. The fluid media tell-tale configuration further including one or more openings in the tubular having a beaded matrix therein. The beaded matrix being permeable to a fluid transport component of the fluid media while being impermeable to a residue component of the fluid media. A method for applying a fluid media to a target location with a tell-tale confirmation. | 04-23-2009 |
| 20090101336 | DEVICE AND SYSTEM FOR WELL COMPLETION AND CONTROL AND METHOD FOR COMPLETING AND CONTROLLING A WELL - A drill-in liner assembly including a tubular and a plurality of substantially radially oriented openings in the tubular arranged in a pattern; the pattern selected to substantially maintain torsional strength of the tubular while facilitating in-flow of target fluid. Also including a plurality of beaded matrix plugs disposed within one or more of the plurality of openings such that torsional load placed upon the plurality of openings in the tubular is borne by the plugs. An erosion resistant filtering arrangement including a tubular, a plurality of openings in the tubular arranged in a pattern, and a plurality of beaded matrix plugs disposed within one or more of the plurality of openings. | 04-23-2009 |
| 20090173490 | Sand Control Screen Assembly and Method for Use of Same - A sand control screen assembly ( | 07-09-2009 |
| 20130032332 | Annular Gap Debris Barrier - A debris barrier snap fits to a tubular groove of one of the tubulars that define the annular gap in which the barrier is to be mounted. It is loosely mounted so that it can center itself in the annulus as the relatively moving members go out of a concentric arrangement. The continuous carbon fiber material used for the debris barrier has lubricious qualities to act as a bushing when the annulus shape changes due to movement of the tubulars out of a concentric relationship. An outer or inner groove on the barrier acts to trap and retain small particles that manage to advance between the barrier and the outer tubular. The snap fit is accomplished with flexible spaced apart fingers with grip surfaces to engage a groove on one of the tubulars. The barrier has low expansion under thermal loads to retain the clearance that acts to stop the entrance of debris. | 02-07-2013 |
| 20140367084 | Snorkel Tube with Debris Barrier for Electronic Gauges Placed on Sand Screens - A sensing system comprises at least one gauge disposed in a wellbore, a sensing link coupled to the at least one gauge, and a debris barrier coupled to the sensing link. The debris barrier comprises a housing coupled to the sensing link, and a barrier element configured to reduce the transport of particulates from the wellbore into the sensing link. | 12-18-2014 |
| 166230000 | Woven mesh | 14 |
| 20080217002 | Sand control screen having a micro-perforated filtration layer - A sand control screen ( | 09-11-2008 |
| 20080283239 | WELL SCREEN WITH DIFFUSION LAYER - A technique is provided for creating a well screen having a diffusion layer affixed to a filter medium to create a coherent structure. The diffusion layer is formed as a structure that freely allows movement of fluid, while the filtering medium is designed to filter particulates of a specific size. The diffusion layer is affixed to the filtering medium along a filtering medium surface to greatly improve collapse and burst resistance of the filtering medium. One method of affixing comprises bonding the diffusion layer to the filtering medium via a sintering process. | 11-20-2008 |
| 20080289815 | DOWNHOLE SCREEN ASSEMBLY - A screen assembly that is used with a well includes a base pipe, a screen and ribs. The base pipe has a non-perforated section and has a longitudinal axis. The screen at least partially circumscribes the non-perforated section of the base pipe, and the ribs extend longitudinally in an annular space between the screen and the non-perforated section. A flexible member (e.g., a wire) is wrapped around the ribs. Various other mechanisms may be used instead of the ribs and flexible member in the annular space. In this regard, such annular standoffs such as a corrugated material, a member that has longitudinal channels, and a member formed from a first set of wires that is interwoven with a second set of wires may be used. Alternatively, longitudinal channels may be formed in the outer surface of the base pipe. | 11-27-2008 |
| 20090308596 | Wire wrap screen manufacturing method - Non conductive supports flank the mounting location of ribs for a wire wrap screen so as to limit penetration into the wire being fed over the ribs and resistance welded notwithstanding variations of applied force from the weld roller. Optionally the wire can be pre-rolled to approximately its end diameter in the finished screen ahead of the time it contacts a rib so as to minimize bending the wire over the rib which thins the wire. The supports are preferably ceramic and provide equal penetration of the rib into the wrap wire despite variations in loading by the weld roller. | 12-17-2009 |
| 20100122810 | WELL SCREENS AND METHOD OF MAKING WELL SCREENS - Screens and methods of making screens for use in a well for producing fluids from an underground reservoir are provided. In one example, the screen includes first and second sections of mesh tube that radially encircle a base pipe and that filter a flow of reservoir fluids into the base pipe. The first section has an end portion and the second section has an end portion. The end portions are connected together by a lap joint. | 05-20-2010 |
| 20100258300 | Well Screen Assembly With Multi-Gage Wire Wrapped Layer - A well screen assembly includes an elongate base pipe and a wire wrap layer. The wire wrap layer includes a wire wrapped around support ribs. The wire wrap layer has an axial end section wrapped at a first gage and an intermediate section wrapped at a second, larger gage. A mesh layer is provided around the wire wrap layer. An outer shroud is provided around the mesh layer, the outer shroud sealed to the wire wrap layer. | 10-14-2010 |
| 20100258301 | Securing Layers in a Well Screen Assembly - A well screen assembly includes an elongate base pipe, a shroud layer about the base pipe, and a mesh layer between the shroud layer and the base pipe. A portion of the mesh layer overlaps another position of the mesh layer to form an area of overlap. A spine is positioned proximate substantially an entire length of lie area of overlap, and transmits a force from the shroud layer to the mesh layer that compresses and seals the area of overlap against passage of particulate. | 10-14-2010 |
| 20110265990 | Sand Control Screen Assembly Having a Surface-Modified Filter Medium and Method for Making Same - A sand control screen assembly ( | 11-03-2011 |
| 20130000889 | Securing Layers in a Well Screen Assembly - A well screen assembly includes an elongate base pipe, a shroud layer about the base pipe, and a mesh layer between the shroud layer and the base pipe. A portion of the mesh layer overlaps another portion of the mesh layer to form an area of overlap. A spine is positioned proximate substantially an entire length of the area of overlap, and transmits a force from the shroud layer to the mesh layer that compresses and seals the area of overlap against passage of particulate. | 01-03-2013 |
| 20130105145 | APPARATUS FOR REDUCING OPERATIONALLY INDUCED DEFORMITIES IN WELL PRODUCTION SCREENS | 05-02-2013 |
| 20130341006 | DEHYDRATOR SCREEN FOR DOWNHOLE GRAVEL PACKING - Certain aspects and features relate to dehydrator screens that are inexpensively made wire, mesh, or stamped metal screens that can direct carrier fluid from a gravel pack slurry efficiently to one or more screens associated with a base pipe. | 12-26-2013 |
| 20150047830 | DOWNHOLE FILTRATION TOOL - A downhole filtration tool to remove sand and other solid particles from production fluid in a subterranean well. The downhole filtration tool includes a perforated mandrel surrounded by at least one filter element made of an open weave polymeric fiberglass material. In addition, the downhole filtration tool may include an additional screen or mesh installed in a separating annulus intermediate of the mandrel and the filter element to provide a filter having improved permeability and resistance to chemical and physical forces. | 02-19-2015 |
| 20160024895 | WELLBORE SCREEN, FILTER MEDIUM, AND METHOD - There is provided a wellbore screen having a base pipe and a strip of filter medium wrapped around the base pipe. The strip of filter medium includes one or more layers of woven steel mesh of various weave patterns, fibers sizes, and/or thread tensions. During the construction of the screen, the strip is wrapped around the base pipe under high tension. The strip has two lengthwise edges that may overlap to form a bonded interface. | 01-28-2016 |
| 20160194941 | EROSION RESISTANT SCREEN ASSEMBLY | 07-07-2016 |
| 166231000 | Spiral | 8 |
| 20100224359 | Subterranean Screen with Varying Resistance to Flow - A screen section is made with variable resistance to flow in the screen material to balance the flow along the screen length. In one variation different discrete zones have screens configured for different percentages of open area while all have the same particle filtration capability. In another variation discrete portions have differing amounts of overlapping screen portions so as to balance flow without affecting the particle size screened. The cross-sectional shape of a wire wrap underlayment for the screen is made closer to trapezoidal to decrease the angle of opening for the incoming flow paths toward the base pipe. In this manner flow resistance is reduced and flow is increased due to reduced turbulence. | 09-09-2010 |
| 20140360718 | SAND FILTER AND METHOD OF MANUFACTURE - Cylindrical screens and screen assemblies for use with perforated base pipe or casing for sand control in wellbores have generally longitudinally extending slots punched in the screen. The outer surface of the screen material is deformed below the inner surface causing apertures to form along the longitudinal edges of the slot. The slots are generally longitudinally aligned with the longitudinal axis of the cylindrical screens whether butt-welded or spiral-rolled and welded by determining the angle at which the slots need to be punched to result in such alignment. End caps which connect between the screen and the casing extend over the ends of the cylindrical screen and are welded thereto to minimize sand entry. At least one of the end caps may include an expansion joint to permit relative expansion and contraction between the screen and the casing particularly when used in thermal recovery operations. | 12-11-2014 |
| 20150144328 | Downhole Gas and Solids Separator - The disclosed downhole gas and solids separator includes a suspended helical flighting member for efficient downhole separation of both gases and solids from a hydrocarbon production stream. Centrifugal force, provided by the flighting member, accelerates the coalescence of like materials to enhance separation of both gases and solids within the separator. Centrifugal force urges solids to the outer wall of the separator and gases toward the center, where passageways are designed to allow solids to efficiently migrate toward and accumulate at the bottom of the separator while simultaneously allowing gases to efficiently rise out of the separator device. | 05-28-2015 |
| 166233000 | With perforated pipe | 5 |
| 20090008085 | MANUFACTURING OF SAND SCREENS - A rod-based well screen is formed in place on a perforated pipe base by wrapping wire around the pipe base and a plurality of rods located around the outside of the pipe. The wire is welded sequentially to each individual rod as it is wrapped around the pipe. The welding and ground electrodes engage the wire and the rods respectively. The rod engaging ground electrode is positioned a short distance ahead of the wire being wrapped around the rods and the pipe base. The ground electrode includes a plurality of contacts. Each contact is mounted to pivot toward and away from a rod. Springs urge each contact toward a rod to hold the rod against the outside surface of the pipe base and to maintain good electrical contact between the contact and the rod. Each contact has a groove to guide the rod into position for welding to the wire. | 01-08-2009 |
| 20100243239 | Compaction Tolerant Basepipe for Hydrocarbon Production - The invention relates to base pipe with slots cut into the peripheral wall to form compaction absorber segments that are arranged to permit the base pipe to be compacted in length without buckling or transferring excessive compressive forces to other pipe sections when a poorly consolidated formation shrinks due to production from the formation. Over time, the slots close as the base pipe shrinks in length and production continues through conventional holes in the base pipe. | 09-30-2010 |
| 20120037357 | Crimped End Wrapped on Pipe Well Screen - A well screen is constructed by positioning a crimp ring encircling and over an end of a wrapped-on-pipe screen layer on a tubular base pipe. The crimp ring is plastically deformed about an outer surface of the screen layer. A bead of weld is applied to affix the crimp ring to the base pipe. | 02-16-2012 |
| 20130000890 | Multiple Sectioned Wire-Wrapped Screens - Operators manufacture a wellscreen by forming a wire-wrapped screen on a base pipe. Rather than stopping and restarting winding, the desired length of screen is completed along the base pipe, and then the wire screen is segmented into a plurality of screen sections as required for the various zones and details of the implementation. Operators arrange the screen sections relative to one another on the base pipe, which can have different lengths with and without perforations. On the free ends of these separate screen sections, mating split ring components fit around the free ends and the base pipes. Male edges of one split ring component mate to complementary female edges of another to form the end ring around the screen section and base pipe, and longitudinal welds made in seams along the mating edges affix the split ring components together. | 01-03-2013 |
| 20140060816 | Multiple Sectioned Wire-Wrapped Screens - Operators manufacture a wellscreen by forming a wire-wrapped screen on a base pipe. Rather than stopping and restarting winding, the desired length of screen is completed along the base pipe, and then the wire screen is segmented into a plurality of screen sections as required for the various zones and details of the implementation. Operators arrange the screen sections relative to one another on the base pipe, which can have different lengths with and without perforations. On the free ends of these separate screen sections, mating split ring components fit around the free ends and the base pipes. Male edges of one split ring component mate to complementary female edges of another to form the end ring around the screen section and base pipe, and longitudinal welds made in seams along the mating edges affix the split ring components together. | 03-06-2014 |
| 166234000 | Strip or rod | 1 |
| 20110247801 | SCREEN DEVICE AND DOWNHOLE SCREEN - A screen device includes a foam body having a passageway that extends longitudinally through the foam body, the foam body has an open cell structure such that at least two surfaces of the foam body are in fluidic communication with one another through the foam body. | 10-13-2011 |
| 166235000 | Stacked annular sections | 3 |
| 20110220347 | SEPARATING DEVICE FOR REMOVING SAND AND ROCK PARTICLES - According to a first embodiment, the invention relates to a separating device for removing sand and rock particles in the extraction of liquids or gases from wells drilled in rock, comprising a plurality of annular discs of a brittle-hard material stacked one on top of the other and axially braced by means of a supporting structure, the discs having on their upper side at least three spacers uniformly distributed over the circular circumference of the discs, the discs being stacked one on top of the other in such a way that the spacers respectively lie one over the other, and that a separating gap with a height of 0.05-1 mm, preferably 0.2-0.5 mm, is present in each case between the individual discs. | 09-15-2011 |
| 20120125601 | SEPARATING DEVICE FOR TUBULAR FLOW-THROUGH DEVICES - The invention relates to a separating device for tubular flow-through devices ( | 05-24-2012 |
| 20140000872 | CROWN-SHAPED SEPARATION DEVICE FOR SEPARATING OIL AND WATER IN WELL | 01-02-2014 |
| 166236000 | Concentric pipes | 5 |
| 20080283240 | Screen For Controlling Sand Production in a Wellbore - A wellbore screen ( | 11-20-2008 |
| 20090159270 | SHUNT TUBE CONNECTOR LOCK - A locking mechanism for securing a jumper tube to a shunt tube in a well screen assembly for use in gravel packing is disclosed. The jumper tube features a telescoping connector that extends to engage the shunt tube and a locking mechanism that extends the connector the proper distance and then locks the connector into place by engaging lugs that are connected to the jumper tube. Also disclosed is an apparatus and method for securing a connector tube to a well screen assembly using a receiver that is attached to the well screen assembly and is configured to receive a connector tube and secure the connector tube into place with screws. The receiver can be mounted to the well screen assembly via the shunt tube, a top/middle-bottom ring assembly, directly to the base pipe. | 06-25-2009 |
| 20100051262 | Sand Control Screen Assembly and Method for Use of Same - A sand control screen assembly ( | 03-04-2010 |
| 20130206394 | Downhole Screen with Exterior Shunts and Manifolded Shunt Connections at Tubular Joints - An assembly of screens made of connected joints with exterior shunts that span the threaded connections among the joints features manifolds for the shunts adjacent joint threaded ends that are connected with a coupling. A mandrel spans from one joint to the next inside the threaded coupling and is sealed to the respective bases pipes on opposed ends of the coupling. At each end of the mandrel the surrounding base pipe has openings from the manifold where the shunts terminate to define an annular flow path between pairs of manifolds. The shunts can have slanted gravel outlet passages or no gravel openings at all. The shunts can span over screen or blank pipe with an option to mount a shroud over the generally parallel shunts. | 08-15-2013 |
| 20140318765 | Mechanically Locked Debris Barrier - A debris barrier is installed and locked to the liner tieback extension. When it is time to check release from the liner before initiating a cement job the inner running string is lifted. The lock stays engaged to the liner tieback extension tube as the inner running string is lifted. In that manner the debris barrier remains in position during the lifting to determine release from the liner before cementing. After cementing, the inner running string is lifted further to eventually undermine the lock and capture the debris barrier to bring the debris barrier to the surface with the inner running string. The lock can be dogs or collets or the like. An inner sleeve or a lift sub with an upset can be the support whose axial movement beyond a predetermined value undermines the lock to release the debris barrier. | 10-30-2014 |
