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Class Information
Number: 166/212
Name: Wells > Expansible anchor or casing > Fluid pressure actuated
Description: Devices in which the outwardly shiftable means is movable to or from the final position by means of the force exerted by the pressure of a fluid.










Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
8684096 Anchor assembly and method of installing anchors Apr. 1, 2014
8622141 Degradable no-go component Jan. 7, 2014
8602115 Grip enhanced tractoring Dec. 10, 2013
8584765 Apparatus and methods for assisting in setting a downhole tool in a well bore Nov. 19, 2013
8579037 Method and apparatus for controlled bidirectional movement of an oilfield tool in a wellbore environment Nov. 12, 2013
8567493 Tubing hanger running tool with integrated landing features Oct. 29, 2013
8550177 Packer assembly Oct. 8, 2013
8534368 Downhole tool with slip releasing mechanism Sep. 17, 2013
8522885 System and methods for tubular expansion Sep. 3, 2013
8517115 Setting tool Aug. 27, 2013
8453729 Hydraulic setting assembly Jun. 4, 2013
8393389 Running tool for expandable liner hanger and associated methods Mar. 12, 2013
8371389 Differential shifting tool and method of shifting Feb. 12, 2013
8353354 Crawler system for an earth boring system Jan. 15, 2013
8307904 System and method for maintaining position of a wellbore servicing device within a wellbore Nov. 13, 2012
8302679 Expandable ramp gripper Nov. 6, 2012
8291986 Expandable liner hanger Oct. 23, 2012
8235075 Method and apparatus for patching a well by hydroforming a tubular metal patch, and a patch for this purpose Aug. 7, 2012
8230926 Multiple stage cementing tool with expandable sealing element Jul. 31, 2012
8230914 Anchor tool Jul. 31, 2012
8127858 Open-hole anchor for whipstock system Mar. 6, 2012
8082985 Lockable anchor for insertable progressing cavity pump Dec. 27, 2011
8069917 Gripper assembly for downhole tools Dec. 6, 2011
8069916 System and methods for tubular expansion Dec. 6, 2011
8061447 Variable linkage assisted gripper Nov. 22, 2011
8002045 Downhole tool with load diverting system and method Aug. 23, 2011
7967064 Apparatus for radially expanding and plastically deforming a tubular member Jun. 28, 2011
7958941 Hydraulic running tool assembly and method of its use Jun. 14, 2011
7954563 Roller link toggle gripper and downhole tractor Jun. 7, 2011
7909107 High capacity running tool and method of setting a packoff seal Mar. 22, 2011
7905294 Method of anchoring a progressing cavity pump Mar. 15, 2011
7900706 Shoulder ring set on casing hanger trip Mar. 8, 2011
7886834 Anchoring system for use in a wellbore Feb. 15, 2011
7857045 Torque transfer arrangement and method Dec. 28, 2010
7854264 Volumetric compensating annular bellows Dec. 21, 2010
7845422 Method and apparatus for expanding a tubular member Dec. 7, 2010
7832488 Anchoring system and method Nov. 16, 2010
7814978 Casing expansion and formation compression for permeability plane orientation Oct. 19, 2010
7798225 Apparatus and methods for creation of down hole annular barrier Sep. 21, 2010
7798223 Bore isolation Sep. 21, 2010
7775290 Apparatus for radially expanding and plastically deforming a tubular member Aug. 17, 2010
7757767 Through tubing gun lock Jul. 20, 2010
7748476 Variable linkage assisted gripper Jul. 6, 2010
7721800 Flow control mechanism for a downhole tool May. 25, 2010
7708081 Wellbore system extending through a salt layer May. 4, 2010
7661470 Expandable packer with anchoring feature Feb. 16, 2010
7661481 Downhole wellbore tools having deteriorable and water-swellable components thereof and methods of use Feb. 16, 2010
7640976 Method and apparatus for downhole tubular expansion Jan. 5, 2010
7624808 Expandable ramp gripper Dec. 1, 2009
7617880 Anchor assembly for slickline setting tool for inflatables Nov. 17, 2009

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