| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 166383000 | By fluid driven piston | 21 |
| 20090071661 | APPARATUS AND METHODS FOR RUNNING LINERS IN EXTENDED REACH WELLS - An apparatus for running a liner into a wellbore may comprise an inner string, a device coupled to the inner string that is operable to engage the interior of the liner and facilitates running of the liner into the wellbore, and a control mechanism operable to control fluid communication between the interior of the liner and the wellbore. A method of running a liner into a wellbore may comprise the steps of providing an inner string into the liner, wherein the inner string includes a device operable to engage the interior of the liner, engaging the interior of the liner, and supplying a fluid pressure to move the liner relative to the inner string to advance the liner into the wellbore. | 03-19-2009 |
| 20090095490 | Electrically activating a jarring tool - A method of using jarring tool in a wellbore, where the jarring tool is electrically activated to apply an impact force transmitted to at least another tool in the well. The method may further comprise operating a hydraulic mechanism in response to electrical activation of the jarring tool to cause a first member of the jarring tool to be moved to collide with a second member of the jarring tool to apply the impact force. Also, the method may involve electrically activating the jarring tool by communicating at least one command over at least one electrical conductor to the jarring tool. | 04-16-2009 |
| 20090126945 | ANCHORING AND SEALING SYSTEM FOR CASED HOLE WELLS - An apparatus includes a casing and a sealing element that is retained in the casing. The sealing element has an unset state in which the sealing element has a first radial thickness and a set state in which the sealing element has a second radial thickness that is greater than the first radial thickness to form a seal between the casing and an inner tubular member. | 05-21-2009 |
| 20090218105 | Hydraulically Driven Tandem Tractor Assembly - A tractor assembly for downhole hydrocarbon applications employing multiple tractors simultaneously. The assembly is hydraulically driven and may provide a substantial increase in the total load accommodated via downhole tractoring. Thus, coiled tubing operations may be run at extensive well depths. Additionally, the load accommodated by the assembly may be hydraulically balanced among the multiple tractors of the assembly through a variety of techniques. In this manner, the total accommodated load may be improved and wear on the uphole tractor of the assembly reduced. | 09-03-2009 |
| 20100032170 | METHOD AND APPARATUS FOR RUNNING TUBULARS - A method is disclosed for running a completion string, such as casing, into a predrilled wellbore while allowing rotation of a downhole component with respect to the completion string. The downhole component may be a drill shoe or reamer shoe for example. There is also disclosed a drillable or millable drive assembly for driving the rotation of a portion of the casing assembly and other applications thereof. | 02-11-2010 |
| 20100084144 | INSTRUMENT CENTRALIZER CONFIGURABLE FOR USE WITH CEMENT EVALUATION WELL LOGGING INSTRUMENTS - A centralizer for a well logging instrument includes a mandrel, a plurality of bow springs arranged circumferentially about the exterior surface of the mandrel and a biasing device in contact with one longitudinal end of each bow spring. The biasing device is configured to apply longitudinal biasing force to the longitudinal end of the respective bow spring. | 04-08-2010 |
| 20100270034 | WIRED MULTI-OPENING CIRCULATING SUB - System and method for circulating fluid within a well bore. A circulation sub configured with communication elements on its ends to link the sub to a downhole communication network. A slideable piston in the sub isolates or exposes an outer port on the sub to an inner fluid flow along the sub depending on a signal transmitted along the communication network. Methods for activating the circulation sub via signals transmitted along the downhole communication network. | 10-28-2010 |
| 20100288510 | OBJECT MANOEUVRING APPARATUS - An apparatus ( | 11-18-2010 |
| 20100319935 | METHOD AND DEVICE FOR A RUNNING TOOL - A method and device for drilling or cleaning in underground borehole including a drilling tool, a drill pipe with two pipe conduits extending up the surface and further including an arrangement for providing one drilling fluid for circulation with a drill string and a second arrangement for providing a second fluid in an annulus formed between the drill string and the wall of a wellbore. | 12-23-2010 |
| 20120111580 | TOOL AND METHOD FOR PLACEMENT OF A COMPONENT INTO A WELL - An apparatus and method is disclosed for insertion of a component into an oil or gas well. Typically, the well includes a cased hole section and may also include an uncased hole section. In some applications, the well deviates substantially from the vertical direction. The apparatus may include a tool member and an engagement mechanism mounted upon the tool member. The engagement mechanism is configured for selective frictional engagement to the cased hole section of the well. A piston is connected to the tool member and is configured for extension relative to the tool member. The component for insertion into the well may be a sand control screen, a perforating gun, or other device. | 05-10-2012 |
| 20120273238 | JACKING UNITS AND BELLOWS FOR DOWN HOLE INTERVENTION TOOLS - A device and a method for positioning a tool in a well tubular. The device comprising a housing having jacking arm assemblies with extendable jacking arms for fixating the device inside the well tubular. The device further comprising a tool connected to the housing and bellow assemblies comprising inflatable means for positioning the device substantially in the centre of the well tubular. By deflating the inflatable means and simultaneously activating the jacking arms the device is pushed in a direction which is substantially perpendicular to the well tubular. | 11-01-2012 |
| 20130206426 | EXPANDABLE CASING PATCH - A system comprising a housing having an upper end in fluid communication with a source of pressurized fluid and a lower end releasably coupled to an expandable tubular. A piston is disposed within and sealingly engaged with the housing. An expansion cone is coupled to the piston and is operable to radially expand the expandable tubular as it moves longitudinally therethrough. A pressure chamber is disposed within the housing and defined by the piston and the expansion cone. A first pressure relief port is disposed within the housing and is operable to allow fluid communication between the pressure chamber and an annulus external to the housing. A second pressure relief port is disposed within the expansion cone and is operable to allow fluid communication between the pressure chamber and a portion of the expandable tubular below the expansion cone. | 08-15-2013 |
| 20130220638 | Hydrostatic Setting Tool - A setting tool for use inside a well bore casing having an upper portion, a lower portion, and a wrap spring. The upper portion includes a mandrel coupled to a connecting line. The upper portion is configured to receive an input. The lower portion includes a first sleeve configured translate along an axis of the setting tool. The lower portion is selectively coupled to the upper portion. The wrap spring has a torsional preload and is coupled to the upper portion and the lower portion. The wrap spring is configured to selectively release the lower portion and upon reception of the input, such that the first sleeve is permitted to translate along the axis. | 08-29-2013 |
| 20130233570 | Remotely Activated Down Hole Systems and Methods - Systems and methods for remotely setting a down hole device. The system includes a base pipe having inner and outer radial surfaces and defining one or more pressure ports extending between the inner and outer radial surfaces. An internal sleeve is arranged against the inner radial surface and slidable between a closed position, where the internal sleeve covers the one or more pressure ports, and an open position, where the one or more pressure ports are exposed to an interior of the base pipe. A trigger housing is disposed about the base pipe and defines an atmospheric chamber in fluid communication with the one or more pressure ports. A piston port cover is disposed within the atmospheric chamber and moveable between blocking and exposed positions. A wellbore device is used to engage and move the internal sleeve into the open position by applying predetermined axial force to the internal sleeve. | 09-12-2013 |
| 20140014372 | Pipe in Pipe Piston Thrust System - A pipe in pipe piston thrust system comprises a plurality of piston assemblies configured to sealingly engage a wellbore, a pump configured to transfer a fluid into the wellbore, and a by-pass disposed between a plurality of annuli formed by the plurality of piston assemblies. The by-pass allows for selective communication of the fluid between the plurality of annuli. | 01-16-2014 |
| 20140311757 | PULLING TOOL - The present invention relates to a pulling tool ( | 10-23-2014 |
| 20150096767 | SINGLE SIZE ACTUATOR FOR MULTIPLE SLIDING SLEEVES - A multiplier sleeve has a releasable seat coupled to a dog within the slidable sleeve allows a single sized ball, dart, or plug to actuate several sliding sleeves. Upon actuation by properly sized ball the ball, slidable sleeve, seat, and dog move downward where the dog is no longer supported allowing the seat to move within the slidable sleeve to a point where the seat is no longer supported thereby releasing the ball. With the slidable sleeve moved downward the port or ports in the sliding sleeve is exposed. A staged port and piston assembly inserted into the ports maintain pressure within the tubular assembly to allow the ball to move through and actuate the targeted sliding sleeves. | 04-09-2015 |
| 20150315882 | EXPANSION SYSTEM - A method of expanding a tubular member by assembling an expansion system having an expansion cone and an expansion sleeve and coupling a tubular member to the expansion system so that the expansion sleeve is at least partially disposed within the tubular member. The expansion system and tubular member are then disposed in a wellbore and the expansion cone is translated relative to the expansion sleeve and tubular member so as to radially expand the tubular member into engagement with the wellbore and the expansion system is removed from the wellbore. The tubular member is expanded to an inside diameter equal to an expansion diameter of the expansion cone plus twice a thickness of the expansion sleeve. | 11-05-2015 |
| 20150369021 | Stepped Liner Hanger Expander - Disclosed is a tubular expansion tool which includes a plurality of stackable piston/slip/spring assemblies that are used to radially expand a liner against well casing along a longitudinal distance “L.” The pistons are repeatedly stroked a short distance “S” with the application of hydraulic pressure. As the pistons are stroked, they move a mandrel-expansion die sub assembly in successive steps a distance “S” to perform the tubular expansion over a longer distance “L.” | 12-24-2015 |
| 20160194939 | Hydraulically Assisted Deployed ESP System | 07-07-2016 |
| 20160251923 | MULTI-ZONE ACTUATION SYSTEM USING WELLBORE DARTS | 09-01-2016 |
