135534 ⎘
Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole retrievable, e.g. wire line retrievable, i.e. with an element which can be landed into a landing-nipple provided with a passage for control fluid
Sub-classes:WIRELINE BACK PRESSURE VALVE CONVEYANCE WITH LUBRICATOR POLISHED ROD
#2Retrievable Electric Subsurface Safety Valve and Nipple Assembly
#3MAGNETICALLY COUPLED SUBSURFACE SAFETY VALVE
#4High flow deepset insert safety valve
#5Wireline retrievable flapper and seat
#6Magnetically coupled subsurface safety valve
#7Fluid Conditioning and/or Treatment System
#8Hydraulic landing nipple
#9Plug activated mechanical isolation device, systems and methods for controlling fluid flow inside a tubular in a wellbore
#10Valve system
#11METHOD OF INTERVENTION IN A FAILED DEEP-SET SUBSURFACE SAFETY VALVE IN A DEEPWATER OR ULTRA-DEEPWATER SUBSEA WELL USING A LIGHT INTERVENTION VESSEL
#12Mechanical isolation device, systems and methods for controlling fluid flow inside a tubular in a wellbore
#13Float Valve Systems
#14Control line pressure controlled safety valve equalization
#15Apparatus and method for downhole data acquisition and or monitoring
#16Constructed annular safety valve element package
#17Safety valve coupling and method of manufacturing valve
#18Intelligent well system
#19Pressure equalization for well pressure control device
#20Test dart system and method
#21Downhole tool including a resettable plug with a flow-through valve
#22Subsurface safety valve for cable deployed electrical submersible pump
#23Retrievable plugging tool for tubing
#24Annular safety valve pull through device
#25Semi-autonomous insert valve for well system
#26Constructed annular safety valve element package
#27DOWNHOLE DEVICE FOR DATA ACQUISITION DURING HYDRAULIC FRACTURING OPERATION AND METHOD THEREOF
#28Apparatus for downhole power generation
#29Method for producing hydrocarbon gas from a wellbore and valve assembly
#30DEEPSET WIRELINE RETRIEVABLE SAFETY VALVE
#31Method for deploying subsurface safety valve having integral pack off
#32Seal assembly
#33Method and apparatus for local supply of a treatment fluid to a well portion
#34Adjustable flow control device
#35Device for carrying a replacement safety valve in a well tube
#36Downhole tools having radially expandable seat member
#37Velocity strings
#38Apparatus for downhole power generation
#39PLUNGER LIFT AND SAFETY VALVE SYSTEM
#40RETROFIT WELLBORE FLUID INJECTION SYSTEM
#41Downhole safety valve apparatus and method
#42Wireline Run Mechanically or Hydraulically Operated Subterranean Insert Barrier Valve and Associated Landing Nipple
#43Method and apparatus for continuously injecting fluid in a wellbore while maintaining safety valve operation
#44METHODS AND APPARATUS FOR CEMENTING DRILL STRINGS IN PLACE FOR ONE PASS DRILLING AND COMPLETION OF OIL AND GAS WELLS
#45Surface controlled subsurface safety valve having integral pack-off
#46Retrievable surface controlled subsurface safety valve
#47Capillary hanger arrangement for deploying control line in existing wellhead
#48System and method for thru tubing deepening of gas lift
#49System and method for selectively communicatable hydraulic nipples
#50METHOD AND TOOL FOR UNBLOCKING A CONTROL LINE
#51Tubing retrievable injection valve
#52Throttle unit for dump bailer and method of blocking a water out zone in a production well utilizing the same
#53Method and apparatus to hydraulically bypass a well tool
#54Method and apparatus to hydraulically bypass a well tool
#55Method and apparatus for continuously injecting fluid in a wellbore while maintaining safety valve operation
#56Downhole safety valve apparatus and method
#57Communication tool and method for a subsurface safety valve with communication component
#58Downhole safety valve apparatus and method
#59Formation isolation valve and method of use
#60Wireline slip hanging bypass assembly and method
#61CHEMICAL INJECTION CHECK VALVE INCORPORATED INTO A TUBING RETRIEVABLE SAFETY VALVE
#62Liquid removal system and method
#63Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
#64Seal assembly energized with floating pistons
#65Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
#66Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
#67Mud pulse landing assembly for use in directional drilling
#68Method and system for injecting a treatment fluid into a well
#69Seal assembly for a safety valve
#70System and method for offshore production with well control
#71Chemical injection check valve incorporated into a tubing retrievable safety valve
#72Method and apparatus to isolate a wellbore during pump workover
#73Controlled opening of a valve in an apparatus for preventing downhole surges
#74Subsurface safety valve systems, isolation tools, and methods of locking subsurface safety valves
#75Retrievable electric subsurface safety valve and nipple assembly
#76Electric subsurface safety valve nipple assembly
#77Subsurface safety valve with recoupling magnet assembly
#78Retrievable back pressure valve and method of using same
#79Retrievable back pressure valve and method of using same
#80Retrievable back pressure valve and method of using same