| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 277336000 |
For below ground apparatus
| 49 |
| 277324000 |
For overpressure control device (e.g., seal for a blowout preventer, etc.)
| 8 |
| 277323000 |
Installation, removal, assembly, disassembly, or repair feature
| 7 |
| 277328000 |
Longitudinally actuated packer for above ground apparatus
| 6 |
| 277343000 |
Seal (e.g., wiper, oil saver, stripper, etc.) accommodates irregular size of inner part | 5 |
| 20120169013 | METAL SEAL - Seal assembly ( | 07-05-2012 |
| 20120187634 | METAL SEALING ADJUSTABLE CASING SUB - An adjustable casing sub having an outer housing, an inner housing insertable into the outer housing, and a ratcheting system for coupling the inner housing within the outer housing. An annulus is between a portion of the inner and outer housing, the annulus including an inwardly tapered section. A metal faced seal is disposed in the annulus, wherein the metal faced seal includes a sliding surface and a compressive sealing surface. The sliding surface may include a malleable inlay and the compressive sealing surface may include a spring like element. Moreover, the metal faced seal radial thickness is greater than the inwardly tapered section radial thickness. | 07-26-2012 |
| 20120248703 | MULTI-ELASTOMER SEAL - A system, in certain embodiments has, a fluid seal having a seal body, including a seal interface having one or more engagement portions, a first elastomer portion disposed along the seal interface, and a second elastomer portion disposed along the seal interface, wherein the first and second elastomers have material properties that are different from one another. | 10-04-2012 |
| 20130187338 | Multifunctional key design for metal seal in subsea application - A wellbore sealing assembly can include a sealing ring, an energizing ring, and a multifunctional key for engaging the sealing ring and the energizing ring. The multifunctional key can have a key body, a guide member, and a retainer stud. The key body can be located in an aperture in a sidewall of the sealing ring and the guide member and retainer stud can protrude through the sidewall into a guide slot and recess of the energizing ring. Downward force on the energizing ring can cause the retainer stud to shear away while the guide member travels in the guide slot to prevent rotation of the energizing ring relative to the sealing ring. The guide member can also aid in complete seal retrieval by locking against the bottom of the key-way slot in the energizing ring. | 07-25-2013 |
| 20130207349 | Lip Seal - A system, in certain embodiments, includes a lip seal having an outer diameter portion including an outer protrusion configured to contact a first seal interface, wherein the protrusion has a curved surface. | 08-15-2013 |
| 277331000 |
Inflatable packer | 5 |
| 20080290603 | SWELLABLE MATERIAL AND METHOD - A swellable element includes a mandrel, a swellable material disposed about the mandrel and at least one cut in the swellable material and method. | 11-27-2008 |
| 20090189353 | Packer element for use in a stuffing box - The present invention regards a packer element ( | 07-30-2009 |
| 20140145402 | ANNULAR BARRIER WITH EXTERNAL SEAL - The present invention relates to an annular barrier to be expanded in an annulus between a well tubular structure and an inside wall of a borehole downhole, comprising a tubular part for mounting as part of the well tubular structure, said tubular part having a longitudinal axis, an expandable sleeve surrounding the tubular part and having an outer face, each end of the expandable sleeve being fastened by means of a connection part to the tubular part, and an aperture in the expandable sleeve or the connection part, wherein a first connection and a second connection are fastened on the outer face of the expandable sleeve, and a safety sleeve having an opening is fastened to the expandable sleeve by means of the first and the second connections, the safety sleeve and the expandable sleeve defining a space being in fluid communication with the annulus. | 05-29-2014 |
| 20160002995 | INFLATABLE SEAL WITH FABRIC EXPANSION RESTRICTION - A diverter flowline seal assembly for use in subsea drilling. The seal assembly includes a seal body having an inner diameter end and an outer diameter end formed of an inflatable elastomeric material having a first modulus. The inner diameter end of the seal body includes two diametrically opposed axially inward lip portions and two diametrically opposed axially outward base portions. Integrated with the inflatable elastomeric material at the base portions of the inner diameter end of the seal body is a material having a modulus that is higher than the modulus of the inflatable elastomeric material so as to prevent the radial expansion of the lip portions and the base portions of the inner diameter end of the seal body. | 01-07-2016 |
| 20100230902 | DOWNHOLE SEALING DEVICE AND METHOD OF MAKING - Disclosed herein is a downhole sealing device. The device includes, a swellable member, and a passageway having a perimetrically continuous wall. The swellable member is configured to cause sealing between a downhole structure and a plurality of tubulars when in a swelled condition, the plurality of tubulars are routed through a plurality of voids extending longitudinally through the swellable member, each of the plurality of voids has perimetrically continuous walls surrounding each of the plurality of tubulars. | 09-16-2010 |
| 277344000 |
Segmented radially actuated packer (e.g., oil saver, gas saver, etc.) for above ground apparatus | 1 |
| 20090200747 | Breech lock stripper rubber pot mounting structure and well drilling equipment comprising same - An upper stripper rubber canister apparatus has a canister body and a canister body lid. An upper end portion of the canister body includes a breech lock structure exposed within the canister body central passage. A lower end portion of the canister body lid is configured for fitting within the central passage of the canister body. The canister body lid includes a breech lock structure that is configured for allowing the canister body lid to be fixedly engaged with the canister body by inserting a lower end portion of the canister body lid into a canister body central passage and rotating the canister body lid with respect to the canister body such that at least a portion of the canister body breech lock structure become at least partially overlapped with a respective one of the canister body lid breech lock structure. | 08-13-2009 |
| 277335000 |
Axially facing packing cup | 1 |
| 20090194947 | Packer cup - A packer cup for sealing the interior of a pipe under pressure includes a first region of relatively soft material and a second region of relatively hard material. The region of the relatively softer material would begin at the lip of the cup and extend for at least one third the length of the cup up to the entire length of the cup. | 08-06-2009 |
| Entries |
| Document | Title | Date |
|---|
| 20080217860 | Method for reducing extrusion of sealing elements - A sealing element includes an elastomeric matrix; a plurality of incorporants embedded in the matrix. | 09-11-2008 |
| 20090322029 | Metal-to-Metal Seal for Smooth Bore - A high pressure seal assembly configured for sealing contact with an opposing surface. The seal assembly comprises an annular seal body with a sealing surface on one side of the seal body. An end of the sealing surface includes a sealing face for sealing contact with the opposing surface. The sealing surface also includes at least one support point that contacts the opposing surface when the seal is placed in sealing contact. Strategically positioning the support point on the sealing surface selectively adjusts the sealing contact stress between the sealing face and the opposing surface. | 12-31-2009 |
| 20100007089 | METAL SEAL ADJUSTABLE CASING SUB - An adjustable casing sub having an outer housing, an inner housing insertable into the outer housing, and a ratcheting system for coupling the inner housing within the outer housing. An annulus is between a portion of the inner and outer housing, the annulus including an inwardly tapered section. A metal faced seal is disposed in the annulus, wherein the metal faced seal includes a sliding surface and a compressive sealing surface. The sliding surface may include a malleable inlay and the compressive sealing surface may include a spring like element. Moreover, the metal faced seal radial thickness is greater than the inwardly tapered section radial thickness. | 01-14-2010 |
| 20100052261 | METALLIC SEAL FOR USE IN HIGHLY-CORROSIVE OIL AND GAS ENVIRONMENTS - A metal seal assembly to seal components in highly corrosive environments, such as a sour well environment. The seal assembly is comprised of a base metal structural component with a softer metal layer applied onto its surface. The purpose of the soft metal layer is to locally deform and, thereby, form a seal against a surface of an opposing component. The base metal structure of the seal may be comprised of a corrosion-resistant alloy. In addition, the soft metal layer may be comprised of a corrosion-resistant alloy, such as a refractory metal like tantalum. | 03-04-2010 |
| 20100270746 | Wellsite Replacement System and Method for Using Same - Systems and methods for replacing equipment at a wellsite, the wellsite having a subsea stripper installed proximate a subsea borehole. The system has at least one seal assembly portion, at least one seal replacement arm and an actuator. The seal assembly portion(s) is (are) positionable in the subsea stripper and replaceable therefrom. The seal assembly portion(s) has (have) a packer extendable within the subsea stripper to form a seal about the subsea stripper. The seal replacement arm(s) is (are) for replacing the seal assembly portion(s) through a door of the subsea stripper. The actuator is for remotely actuating the seal replacement arm(s) to engage the seal assembly portion(s) whereby the seal assembly portion(s) is (are) remotely replaceable. | 10-28-2010 |
| 20100320695 | ANNULAR SEAL - A seal assembly capable of low temperature service is disclosed. It features upper and lower metallic backup rings that are specially shaped to act as a spring to keep the sidewalls of such rings in contact with the inside and outside surfaces to be sealed to prevent extrusion of the seal material even in low temperature situations. Inner and outer grooves are provided. O-ring seals, used for the ID of the seal, are manufactured to have a slightly greater diameter than the groove into which they will be installed. The greater length provides stored energy to promote sealing functionality in cold temperature situations. The O-rings used for the OD of the seal are manufactured to have a slightly smaller diameter than the groove into which they will be installed. The shorter length provides stored energy to promote sealing functionality in cold temperature situations. | 12-23-2010 |
| 20110037229 | PACKING ELEMENT - A sealing element for a packer is described. The sealing element comprises an annular body having an internal surface defining a throughbore, the internal surface adapted to engage a mandrel having a mandrel diameter. The annular body internal surface defines first and second regions, the throughbore diameter of the regions being less than the mandrel diameter. | 02-17-2011 |
| 20110266752 | SEAL HAVING STRESS CONTROL GROOVE - A seal, in certain embodiments, includes a seal body having a groove on a face of the seal body. The face is configured to contact a surface of a separate component to form a seal. The groove interrupts continuity of the face between a first face portion and a second face portion. In addition, the groove enables material deformation laterally between the first face portion and the second face portion. Furthermore, the groove increases contact stress at corners between opposite walls of the groove and the respective first and second face portions. | 11-03-2011 |
| 20120043726 | MULTIPLE SEALING ELEMENT ASSEMBLY - A seal assembly, method for sealing a seal assembly and a modular seal unit for a rotating control device for use in an offshore environment. The modular seal unit includes a first outer housing, a first seal housing lockable within the first outer housing, and a first sealing element disposed on a lower end of the first seal housing. The first sealing element includes a throughbore configured to receive a drill pipe, and a sealing surface configured to seal against the drill pipe. The modular seal unit also includes a first connector configured to couple the first seal housing to the first outer housing, and a second connector configured to couple the first seal housing to one selected from a second outer housing of a second modular seal unit or a running tool adapter. | 02-23-2012 |
| 20120098203 | ENERGIZING RING NOSE PROFILE AND SEAL ENTRANCE - A wellhead seal assembly that forms a metal-to-metal seal between inner and outer wellhead members. A metal seal ring has inner and outer walls separated by a slot. An elastomeric seal is located below the seal ring and has a bottom portion that contacts an upward facing shoulder of a hanger. An energizing ring with a tapered nose is moved into the slot. The tapered nose has a compound angle that determines how much the nose travels into the slot when a force is applied to the energizing ring. Once the elastomeric seal is compressed to a desired level, the load on the energizing ring has increased to the point that the tapered nose of the energizing ring will further enters the slot and force the outer and inner walls of the metal seal into sealing engagement with the inner and outer wellhead members. | 04-26-2012 |
| 20130043657 | S-SEAL - An S-seal for sealing an annulus between and mandrel outer surface and a tube inner surface. In one embodiment, the S-seal includes a ring comprising a seal face, a gland face, opposing side faces. The gland face is opposite the seal face. The side faces extend between the seal face and the gland face. A spring is embedded in the ring at an intersection of each side face with the seal face. Each side face comprises a groove disposed between the spring and an intersection of the gland face and the side face. | 02-21-2013 |
| 20130320626 | PACK OFF DEVICE WITH CABLE FEEDTHROUGH - A pack-off device, including a body having a first feedthrough and a second feedthrough formed therein. A projection extends from the body and is operatively arranged to engage a restriction of an adjacent structure. At least one seal element is arranged with the body for sealing the device against the adjacent structure when the projection is engaged with the restriction. A method of arranging and operating a completion system is also included. | 12-05-2013 |
| 20140054861 | METAL ENCAPSULATED COMPOSITE SEAL - A system, in certain embodiments, has a composite seal with both a metal shell and an elastic core, such as an elastomer core. In one embodiment, the composite seal has an annular metal shell with a top, a bottom, and a seal interface disposed between the top and the bottom. The composite seal also has an elastomer disposed within the annular metal shell, wherein the elastomer is configured to impart pressure against the seal interface. | 02-27-2014 |
| 20140175749 | DEVICE FOR PRODUCING A BORE IN THE GROUND, ROTARY DRIVE DEVICE AND ROTARY SEAL ARRANGEMENT - A device for producing a bore in the ground includes a spindle comprising a rotary lead-through and a first sealing face configured to be cylindrical. The spindle is configured so as to be rotatably led through a housing via the rotary lead-through. The housing comprises a second sealing face configured to be concentric with respect to the first sealing face. A rotary seal arrangement is configured to seal the rotary lead-through of the spindle through the housing. The rotary seal arrangement comprises a shaft seal configured to act between the first sealing face of the spindle and the second sealing face of the housing. A labyrinth seal is arranged upstream of the shaft seal when viewed from an outside of the housing. | 06-26-2014 |
| 20140203512 | Backup Bullet Seal with Actuation Delay Feature - A sealing system features a primary and secondary bullet seals where the secondary seal is preferably bidirectional and is activated to spread fins with a t-shaped ring that is driven with differential pressure to advance after temperature exposure softens a stop material on the extending portion of the t-shaped ring. Opposed t-shaped rings are disposed at ends of the backup ring that have fins at both ends. Advancement of the t-shaped ring spreads the fins and retains them in the spread condition for enhanced sealing. Optionally the primary seal can also be actuated with a similar t-shaped ring with a temperature sensitive delay feature. | 07-24-2014 |
| 20140339774 | HIGH PRESSURE MECHANICAL SEAL FOR CABLES AND POWER LINES IN OIL WELLS - The present high pressure mechanical seal features a novel configuration capable of sealing from one up to simultaneously five power conduction lines, flow injection lines or control lines, in the same device. Adaptable to different configurations, types and size of conduction lines existing in the industry. The power conduction lines can be a cable of an electro-submersible pump or the cable in a down hole heater; the flow and control lines can be diluents injector capillaries or data and instrumentation cables or any other type of conduction line which can enter the inner atmosphere of the wellbore. Conduction lines are generally shaped as uniform cylindrical elements, which vary in diameter and material due to the cylindrical geometry, are adaptable to the sealing system of the present invention, such that the equipment can seal from only one line up to five lines depending on the requirement of the user. | 11-20-2014 |
| 20160032679 | MULTI-BARRIER SEAL SYSTEM - A multi-barrier seal system, including, a first seal assembly configured to provide a first sealing barrier between an auxiliary line and a mineral extraction system, and a second seal assembly configured to provide a second sealing barrier between the auxiliary line and the mineral extraction system, wherein the second seal assembly is configured to shear through the auxiliary line. | 02-04-2016 |
| 20160177650 | ELASTOMERIC SEAL FOR ROTATING HEADS | 06-23-2016 |
