Class / Patent application number | Description | Number of patent applications / Date published |
166212000 | Fluid pressure actuated | 14 |
20090000783 | APPARATUS AND METHOD - A method and apparatus for containing fluid in ah area of a wellbore annulus, in which fluid is energized to create a fluid flow which is at least partially obstructed and is directed to form in the annulus a localized area of high pressure to contain fluid in an area of the annulus of lower pressure. In an embodiment, the method creates a pressure plug in the annulus. | 01-01-2009 |
20110011577 | SAND CONTROL SCREEN ASSEMBLY AND METHOD FOR USE OF SAME - A sand control screen assembly ( | 01-20-2011 |
20110042068 | INTERNAL RETENTION MECHANISM - An anchoring device for stopping movement of a sliding component in a mandrel or case is disclosed. The anchoring device includes an elastically deformable anchor seat and an elastically deformable anchor retainer insertable into the anchor seat. The anchor seat has a groove profile thereon which will mate with a groove profile on the mandrel in an anchoring position. The retainer is insertable into the anchor seat and will hold the anchor seat in the anchoring position. | 02-24-2011 |
20110073300 | METHODS AND APPARATUSES FOR INHIBITING ROTATIONAL MISALIGNMENT OF ASSEMBLIES IN EXPANDABLE WELL TOOLS - A gripper for use in a downhole tool is provided. The gripper can include an actuator, an engagement assembly, and an expandable assembly. The engagement assembly can comprise a leaf-spring like elongate continuous beam. The expandable assembly can comprise a linkage including a plurality of links. The linkage can be coupled to the actuator such that the actuator expands the expandable assembly which in turn expands the engagement assembly. One or more keyed connections can inhibit rotational misalignment of the expandable assembly from the engagement assembly. In operation, during one stage of expansion radial forces are transmitted to the engagement assembly through both interaction of a rolling mechanism on the engagement assembly with the expandable assembly and pressure of the linkage assembly directly on an inner surface of the engagement assembly. The one or more keyed connections can preferably facilitate full retraction of the expandable and engagement assemblies. | 03-31-2011 |
20110127030 | LOCKABLE ANCHOR FOR INSERTABLE PROGRESSING CAVITY PUMP - Embodiments of the invention generally relate to methods and apparatuses for anchoring progressing cavity (PC) pumps. In one embodiment, a method of anchoring a PC pump to a string of tubulars disposed in a wellbore which includes acts of inserting the PC pump and anchor assembly into the tubular. Running the PC pump and anchor assembly through the tubular to any first longitudinal location along the tubular string. Longitudinally and rotationally coupling the PC pump and the anchor assembly to the tubular and forming a seal between the PC pump and the tubular string at the first location and performing a downhole operation in the tubular. | 06-02-2011 |
20110146970 | Anchor Tool - An anchor tool for anchoring a downhole tool within a casing, a well, or any other downhole, hollow space. The tool has a longitudinal tool body with a centre axis extending through the tool body in the centre of the body, a first recess, a second recess, a third recess, and a fourth recess in the tool body; and a first anchor, a second anchor, a third anchor, and a fourth anchor. The first anchor is provided in the first recess, and so forth, and the anchors are outwards movable in the recesses for anchoring the tool. Each anchor provided in the recesses extends through the tool body transverse to and across the centre axis and the anchors and the corresponding recesses are situated in the tool body for providing a symmetrical anchoring of the anchor tool. | 06-23-2011 |
20110247799 | TUBING HANGER RUNNING TOOL WITH INTEGRATED LANDING FEATURES - A system, in certain embodiments, includes a tubing hanger running tool (THRT) configured to position a tubing hanger within a wellhead. The THRT includes an integrated pressure equalization system including a tube having a first end in fluid communication with an annulus of the wellhead, and a second end in fluid communication with a control line. The integrated pressure equalization system also includes a piston disposed within the tube. The piston is configured to move within the tube to balance a pressure differential between a first fluid within the annulus and a second fluid within the control line. | 10-13-2011 |
20120080183 | REMOTELY CONTROLLED APPARATUS FOR DOWNHOLE APPLICATIONS, COMPONENTS FOR SUCH APPARATUS, REMOTE STATUS INDICATION DEVICES FOR SUCH APPARATUS, AND RELATED METHODS - An expandable apparatus may comprise a tubular body, a valve piston and a push sleeve. The tubular body may comprise a fluid passageway extending therethrough, and the valve piston may be disposed within the tubular body, the valve piston configured to move axially downward within the tubular body responsive to a pressure of drilling fluid passing through a drilling fluid flow path and configured to selectively control a flow of fluid into an annular chamber. The push sleeve may be disposed within the tubular body and coupled to at least one expandable feature, the push sleeve configured to move axially responsive to the flow of fluid into the annular chamber extending the at least one expandable feature. Additionally, the expandable apparatus may be configured to generate a signal indicating the extension of the at least one expandable feature. | 04-05-2012 |
20130186616 | TUBULAR ANCHORING SYSTEM AND A SEAT FOR USE IN THE SAME - A tubular anchoring system includes a first frustoconical member. Slips in operable communication with the first frustoconical member are radially expandable into an anchoring engagement with a structure in response to longitudinal movement relative to a frustoconical surface of the first frustoconical member. A collar in operable communication with the first frustoconical member is radially expandable into sealing engagement with the structure in response to longitudinal movement relative to a second frustoconical member. A seat in operable communication with the first frustoconical member having a surface configured to be sealingly engagable with a plug runnable thereagainst, is configured and positioned relative to the collar to aid the seat in maintaining a radially expanded configuration against a pressure differential formed across the seat when plugged. | 07-25-2013 |
20130206392 | Fracturing Tool Anchor - The present invention is directed to a fracturing tool anchor adapted for use with a work string in a wellbore. In one embodiment, the anchor has a housing with a central passage and an uphole and downhole end. The housing has a plurality of ports positioned circumferentially around the housing and along the length of the housing. The ports each contain an engagement member, such as a piston, and a return spring. The engagement member is adapted to extend radially outward when the anchor is pressure activated, to engage the wall of the casing or wellbore. The present application is also directed to a fracturing tool anchor that does not need to be pressure activated and utilizes slips as the engagement members. | 08-15-2013 |
20140014322 | FAIL-SAFE SPRING - The present invention relates to a downhole tool extending in a longitudinal direction, comprising a tool housing; an arm assembly movable between a retracted position and a projecting position in relation to the tool housing; an arm activation assembly for moving the arm assembly between the retracted position and the projecting position; wherein the arm activation assembly comprises: a piston housing comprising a piston chamber, said piston chamber extending in the longitudinal direction of the downhole tool, a piston member arranged inside the piston chamber and engaged with the arm assembly to move the arm assembly between the retracted position and the projecting position, the piston member being movable in the longitudinal direction of the downhole tool and having a first piston face and a second piston face, the piston member being able to apply a projecting force on the arm assembly by applying a hydraulic pressure on the first piston face moving the piston in a first direction, and a spring member applying a spring force to move the piston in a second direction opposite the first direction. Furthermore, the invention relates to a downhole system. | 01-16-2014 |
20140069633 | TUBING HANGER RUNNING TOOL WITH INTEGRATED LANDING FEATURES - A system, in certain embodiments, includes a tubing hanger running tool (THRT) configured to position a tubing hanger within a wellhead. The THRT includes an integrated pressure equalization system including a tube having a first end in fluid communication with an annulus of the wellhead, and a second end in fluid communication with a control line. The integrated pressure equalization system also includes a piston disposed within the tube. The piston is configured to move within the tube to balance a pressure differential between a first fluid within the annulus and a second fluid within the control line. | 03-13-2014 |
20140116680 | Packer - A packer for a well is described. The packer comprises a seal element and seal setting apparatus. The seal setting apparatus is moveable with respect to the seal element in a setting direction to apply a setting force to the seal element to move the seal element from a run-in configuration to a set configuration in which, in use, the seal element forms a contact seal with a conduit wall. In use, the packer is arranged such that, in the set configuration, a pressure differential across the packer, which creates a force in the setting direction, will increase the setting force applied by the seal setting apparatus to the seal element to maintain the seal. | 05-01-2014 |
20160053559 | DOWNHOLE ANCHORING APPARATUS - An anchoring apparatus for engaging a borehole surface includes an anchoring member, an actuator, a fluid chamber, and an intensifier piston within a housing. The intensifier piston includes a first end having a surface area greater than a second, the second end being in communication with the fluid chamber, such that application of pressure to the first end applies a second pressure, greater than the first, to fluid in the chamber, which is in turn applied to the actuator to extend the anchoring member toward the borehole surface with intensified force. A second intensifier piston and fluid chamber can be included and used to apply intensified pressure to the actuator to retract the anchoring member. A movable mandrel within the housing can be used to physically apply a physical force to one or both intensifier pistons in place of or in addition to fluid pressure. | 02-25-2016 |