| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 166177500 | HYDRAULIC FRACTURING DEVICE | 21 |
| 20090145597 | TAPERED SLEEVE AND FRACTURING HEAD SYSTEM FOR PROTECTING A CONVEYANCE STRING - A tapered sleeve and fracturing head system for introducing fracturing fluid to a wellbore, while protecting a conveyance string from the erosive effects of the fracturing fluid is disclosed. A tapered sleeve has a top portion and a tapered downhole portion. The sleeve is fit to a main bore of a fracturing head by an upset at the top portion of the sleeve that engages a shoulder of the fracturing head. The sleeve intercepts, deflects and redirects introduced fracturing fluids downhole, preventing direct impingement of the fracturing fluid against the conveyance string. The main bore of the fracturing head may also be tapered at an angle substantial parallel to and along the length of the taper of the sleeve, to further improve the fluid dynamics of the fracturing fluid and further reduce the erosive effects of the fracturing fluid. | 06-11-2009 |
| 20100051261 | TELESCOPIC FRACTURING ISOLATION SLEEVE - The disclosure provides a fracturing isolation sleeve for a wellhead assembly including a fracturing adapter and tubing head. In at least one embodiment, the sleeve can telescopic to different lengths to fit different assemblies without necessitating switching the sleeve or portions thereof. The sleeve can be coupled to the wellhead assembly by threaded and non-threaded connections. The sleeve upper portion can be threadably engaged with the wellhead assembly, and/or the sleeve lower portion can be threadably engaged with a packoff bushing rotationally coupled to the wellhead assembly through an anti-rotation mechanism. Further, the sleeve can include a retaining nut to be threadably engaged with the wellhead assembly without necessarily rotating the sleeve upper or lower portions. The sleeve can be also coupled with the wellhead assembly through a mandrel coupled to the sleeve having an actuating cam surface to actuate a lock ring with the wellhead assembly. | 03-04-2010 |
| 20100122809 | Rotating high-pressure pumping head - A pumping assembly is provided that is capable of conveying fluids (including solids-laden fluids) pumped into oil and/or gas wells at high pressure including, without limitation, fluids pumped during hydraulic fracturing and other stimulation operations. The pumping assembly can be rotated about its central longitudinal axis, thereby eliminating dangerous activities and wasted time when pipe is removed from a well. | 05-20-2010 |
| 20100252253 | INJECTION OF TREATMENT MATERIALS INTO A GEOLOGICAL FORMATION SURROUNDING A WELL BORE - Methods and systems for creating fractures in a geological formation surrounding a well bore. In one implementation, a treatment material may be disposed at the bottom of the well bore. One or more propellant apparatuses may be immersed in the treatment material and a propellant may then be burned inside a first propellant apparatus to create fractures in the geological formation. | 10-07-2010 |
| 20110048698 | MULTIPART FRAC HEAD WITH REPLACEABLE COMPONENTS - A multipart frac head with removable components permits the frac head to be refurbished in the field. A bottom leg and inlet ports of the multipart frac head can be replaced. | 03-03-2011 |
| 20110155367 | FRACTURING ISOLATION SLEEVE - An apparatus operatively coupled to a well having a production casing positioned therein, the apparatus including a first device having and internal bore, a second device having an internal bore, and a fracture isolation sleeve disposed at least partially within the internal bores of the first and second devices, wherein the fracture isolation sleeve has an internal diameter that is greater than or equal to an internal diameter of the production casing. | 06-30-2011 |
| 20110168384 | FRACTURING HEAD WITH REPLACEABLE INSERTS FOR IMPROVED WEAR RESISTANCE AND METHOD OF REFURBISHING SAME - Fracturing heads with one or more replaceable wear-resistant inserts have annular sealing elements for inhibiting fracturing fluids from circulating between the inserts and a main body of the fracturing head. Worn inserts and degraded sealing elements are easily replaced to refurbish the fracturing head without replacing or rebuilding the main body. Service life of the main body is therefore significantly prolonged. In one embodiment, an entire flow path through the main body is lined with wear-resistant replaceable inserts to further prolong the service life of the main body. | 07-14-2011 |
| 20110284214 | METHODS AND TOOLS FOR MULTIPLE FRACTURE PLACEMENT ALONG A WELLBORE - The invention discloses a tool for use in a wellbore, comprising: a tubular elongated member; openings on the tubular member able to be close with a valve or a sleeve; swellable packers positioned between said opening on the tubular member; and a control unit; the control unit operating the valve or sleeve for fracturing a subterranean formation in a wellbore, in the stages: a. fracturing the subterranean formation through a first stage at predefined first locations; and b. fracturing the subterranean formation through a second stage at second location(s) wherein each location from the second location(s) is localized between the predefined first locations. | 11-24-2011 |
| 20120037356 | UNIVERSAL FRAC SLEEVE - A wellhead assembly is provided. In one embodiment, the wellhead assembly includes a universal frac sleeve assembly for isolating portions of a wellhead assembly from pressurized fracing fluid. The universal frac sleeve assembly may include an inner sleeve, an outer sleeve, and a seal. Axial movement of the inner sleeve relative to the outer sleeve causes the seal to expand radially, thereby forming a seal within the wellhead assembly. | 02-16-2012 |
| 20120085532 | MULTIPART FRAC HEAD WITH REPLACEABLE COMPONENTS - A multipart frac head with removable components permits the frac head to be refurbished in the field. A bottom leg and inlet ports of the multipart frac head can be replaced. The bottom leg is provisioned with a flange. | 04-12-2012 |
| 20120152523 | Self-Orienting Fracturing Sleeve and System - A self-orientating fracturing system locatable in a tubing string, the system comprising a swivel sub having a top connection and a lower connection radially rotatable relative to said top connection; at least one ported sleeve positionable downwell of said swivel sub, said at least one ported sleeve defining a flowpath and comprising a ported housing having an outer surface with at least one planar engagement surface and at least one port providing a communication path to the interior of said housing; and an insert moveable within said ported housing between a first position and a second position, wherein in said first position said insert is positioned radially between said at least one port and said flowpath. The system further comprises a centralizer having a outer surface with at least one flute formed therein, said centralizer positionable downwell of said swivel sub. | 06-21-2012 |
| 20120181015 | UNI-BORE DUMP LINE FOR FRACTURING MANIFOLD - The disclosure provides one or more manifolds having manifold portions primarily of fluid conduit and flow components mounted to the manifold portions, such as valves and fluid fittings. The manifold is formed with a uniform bore, so that the manifold portions are the same size along the flow path of the manifold, and the valves and fluid fittings have a bore the same size of the bore of the manifold portions. The uni-bore manifold creates a less turbulent flow path and allows draining of the manifold through one or more valves coupled to an end of the manifold that otherwise can to become restricted or plugged with particles entrained in fluids in the manifold. | 07-19-2012 |
| 20120181016 | COLLECTION BLOCK WITH MULTI-DIRECTIONAL FLOW INLETS IN OILFIELD APPLICATIONS - The disclosure provides a collection block that aggregates multiple incoming flow lines and provides a consolidated outgoing flow path. The collection block can be remote from a given well that is being fractured to minimize safety risk in operations around the well. The collection block has dual capabilities of being connected to individual incoming flow lines as well as to manifold systems for distributing the out flowing fluids. The one or more inlets can be formed in the collection block at an offset to a centerline of a longitudinal bore through the collection block. In some to embodiments, frac trucks can connect along an extended connection zone that provides the fluids from the truck to the collection block. | 07-19-2012 |
| 20130032328 | HORIZONTAL FRACTURING TREE - A system, in certain embodiments, includes a horizontal fracturing tree. The horizontal fracturing tree includes a first hydraulic fracturing bore configured to flow a first fluid, wherein the first hydraulic fracturing bore extends along a first horizontal axis, and the first horizontal axis is generally perpendicular to a vertical axis of a wellhead. | 02-07-2013 |
| 20130075079 | FRAC HEAD WITH SACRIFICIAL WASH RING - A frac head with a sacrificial wash ring located above a mixing chamber protects a frac head body from erosion caused by abrasive frac fluids pumped through the frac head. | 03-28-2013 |
| 20130075080 | ADJUSTABLE FRACTURING SYSTEM - An adjustable fracturing system is provided. In one embodiment, the system includes a fracturing manifold coupled to a fracturing tree to allow the fracturing tree to receive fracturing fluid from the fracturing manifold. The system also includes an adjustment joint configured to be varied in length to facilitate coupling of the fracturing manifold to the fracturing tree. Additional systems, devices, and methods are also disclosed. | 03-28-2013 |
| 20140034294 | Fracturing System and Method - A system and method comprising at least one ported sleeve assembly and a flapper assembly positioned downwell of the ported sleeve assembly. The system provides for the use of multiple ported sleeve assemblies for each stage of a hydrocarbon producing well that can be opened with a single element, and multiple stages, each have the ability to be opened with a single element size. | 02-06-2014 |
| 20140060814 | PULSE FRACTURING DEVICE AND METHOD - A method of inducing fracture in at least a portion of a geologic structure includes inducing acoustic waves into a fluid medium present in a borehole extending at least partially into the structure. Embodiments may include preheating or pressurizing the fluid medium prior to inducing the acoustic wave therein. A device for fracturing at least a portion of a geologic structure includes electrodes for producing a spark to generate ordinary acoustic waves in the fluid medium. Embodiments may include structures for preheating or pressurizing the fluid medium prior to inducing the acoustic wave therein. | 03-06-2014 |
| 20140338888 | System and Method for Enhancing Hydraulic Fluids for Down Hole Use - An enhanced hydraulic fluid comprises a conventional hydraulic fluid in combination with a predetermined amount of benzene by volume relative to the conventional hydraulic fluid. The predetermined amount of benzene preferably comprises between about 1.0% to about 20.0% benzene by volume, more preferably between about 1.5% to about 10.0% benzene by volume, and most preferably between about 2.0% to about 5.0% benzene by volume. The conventional hydraulic fluid may comprise electronics coolant liquids and oils. Conventional hydraulic fluids that may be mixed with benzene in the volumes described above include, but are not limited to, FLUORINERTS™ that include FC-43 and FC-70, including any perfluorinated, partially fluorinated, or partially chlorinated alkane with between about 3 to about 18 carbon atoms; mineral oils that include CAPELLA™ brand mineral oil; esther oils (synthetic or natural) that include formidals, and MIDEL™ brand esther oils. | 11-20-2014 |
| 20150308223 | DUMP VALVE ARRANGEMENT FOR FRACTURING TOOL SET - A dump valve arrangement for a fracking tool coupled to a length of coil tubing includes an axially displaceable inner mandrel which cooperates with a valve arrangement to allow for releasing fracturing fluid through the central bore of a fracturing tool to an outlet port positioned at the bottom of the tool string. Displacement of the inner mandrel is effected as a result of the normal sequence of operation of the fracturing tool set. The valve arrangement is in a closed position during both the insertion and positioning of the tool string. Fluid pressure from the injection of fracturing fluid into the formation maintains the inner mandrel and valve arrangement in the closed position. When fluid injection ceases, withdrawal of the coil tubing unit causes axial displacement of the inner mandrel thereby opening the valve arrangement, allowing fluid to drain through the center of the tool string and out into the well bore through the outlet port. | 10-29-2015 |
| 20160076342 | MANUFACTURED PORTED MANDREL AND METHOD FOR MAKING SAME - A ported mandrel additively manufactured with at least two different materials. A unitary ported mandrel includes a mandrel body of a base material; one or more ports including an erosion resistant material; and one or more return pathways. A method for making a unitary ported mandrel for a downhole fracturing operation. | 03-17-2016 |
