Matches 1 - 50 out of 91 1 2 >


Match Document Document Title
8079413 Bottom set downhole plug  
A plug for isolating a wellbore. The plug can include a body having a first end and a second end, wherein the body is formed from one or more composite materials and adapted to receive a setting...
7694746 Large bore packer and methods of setting same  
Devices and methods for setting a packer inside a wellbore with little appreciable reduction of the useable area of the wellbore. The outer casing or liner of the wellbore contains one or more...
7234522 Apparatus and method for drilling a wellbore with casing and cementing the casing in the wellbore  
A float system for use in cementing a casing in a wellbore. The wellbore is drilled with a drill bit attached to the casing. The drill bit is removed after the wellbore is drilled. The float system...
6823944 Apparatus and method for completing a well  
A method and apparatus for sealing the top of a liner within a casing string of an oil well which does not require a second trip of the work string to seal off the top of the liner within the...
6675890 Packing device for oil wells  
A packing tool assembly for sealing oil well bores that basically includes an elongated tubular member, two deformable sealing units, two stopper ring members and a cylinder member. A setting tool...
6343650 Test, drill and pull system and method of testing and drilling a well  
A test, drill and pull system for testing a well formation or zone of interest and further drilling of the well in a single trip into the wellbore. The system includes a surface readout tester...
5697449 Apparatus and method for temporary subsurface well sealing and equipment anchoring  
A retrievable packoff assembly for temporarily sealing a well pipe and anchoring equipment at a subsurface location within the pipe. The assembly is connected to a tubular actuation tool which is...
5433275 Double-threaded anchor tubing assembly  
An anchor assembly may be used for interconnecting a downhole tubular member with a packer affixed within a well bore. The anchor assembly may include a mandrel fixedly secured to production...
5343954 Apparatus and method of anchoring and releasing from a packer  
An apparatus and method of anchoring a work string to a packer set in a wellbore and releasing therefrom. The apparatus includes a stinger, a collet slidably disposed on the stinger and having a...
5314014 Packer and valve assembly for temporary abandonment of wells  
Preferential disconnection of a valve-actuating subassembly from a temporary abandonment safety valve and packer assembly is provided by stops which limit relative rotation between the...
5207274 Apparatus and method of anchoring and releasing from a packer  
An apparatus and method of anchoring into a packer with a stinger assembly is disclosed. Further, an apparatus and method of releasing from a packer is also disclosed. The apparatus includes an...
5154228 Valving system for hurricane plugs  
A tubular body containing a sleeve actuated safety valve is attachable to the top end of a hurricane plug. A running tool has a floating nut connection with the tubular body and a tubular extension...
5069280 Gravel packer and service tool  
A gravel packer and service tool combination for use in subterranean wells operates sequentially to lock and seal the packer in the well at a producing formation, release a mechanical connection...
5058671 Pipe insert assembly  
An assembly for installation within the end of a joint of casing or liner for use in a downhole environment where the casing or liner is disposed in the borehole which traverses earth formations....
5058672 Landing collar and float valve assembly  
An assembly for installation within the end of a joint of casing or liner for use in a downhole environment where the liner or casing is disposed in the borehole which traverses earth formations....
4972908 Packer arrangement  
An arrangement for lowering into a well bore casing on an operating string to sealably engage a packer that is supported on a tubular member so that the packer can be set either by a combination of...
4862957 Packer and service tool assembly  
A packer and service tool assembly for oil or gas well preparation includes a disengageable coupling mechanism which permits the tool to be screwed into and out of the packer and which can be...
4848459 Apparatus for installing a liner within a well bore  
A packer setting tool, a packer assembly and an attached liner assembly are lowered into a well bore at a desired depth to fix the liner therein. Cement is pumped down a tubing string, through the...
4830103 Setting tool for mechanical packer  
A packer setting tool is disclosed for providing quick and reliable release thereof from a well casing packer. The setting tool is adapted for lowering the packer assembly within the casing. The...
4735268 Mechanical setting tool  
A mechanical setting tool for setting a flow control tool in an oil or gas well using the drill string includes a mandrel with means for attachment to the end of the drill string. Slips are...
4726419 Single zone gravel packing system  
A setting device for a gravel packing system includes a housing having a slurry supply passage, a fluid return passage and a gravel packing port disposed therein. A weight responsive return valve...
4690220 Tubular member anchoring arrangement and method  
Apparatus releasably supported on a setting string responds to manipulation of the setting string to release therefrom and anchor to a tubular member. A member on the setting string is provided...
4681159 Setting tool for a well tool  
In a PBR system in well bores, a retrievable landing assembly which can be set either mechanically or hydraulically has a telescopic setting sleeve and setting collar where the setting collar is...
4669538 Double-grip thermal expansion screen hanger and running tool  
A double-grip screen hanger apparatus providing compensation for thermal expansion as a result of heat, such as is present in steam flood or steam injection wells. The screen hanger includes an...
4646842 Retrievable well bore assembly  
Apparatus and method of positioning and seating a retrievable insert landing assembly in a well bore tubular member with a left-hand threaded portion and having a sealing bore above or below the...
4611663 Casing hanger and running apparatus  
Disclosed is a casing hanger 10 and running apparatus 16 wherein the casing hanger 10 is mechanically supported by a running thread ring 70 onto a running tool 20 for lowering into a wellhead 12,...
4603743 Hydraulic/mechanical setting tool and liner hanger  
A setting tool and a liner hanger for setting a liner hanger in well bores traversing earth formations where the setting tool can be hydraulically operated and released from the liner hanger or...
4598774 Setting tool with retractable torque fingers  
A setting tool is shown if the type adapted to be made up in a pipe string for releasably engaging a setting sleeve in a well bore. The setting tool is designed to set a liner hanger using right...
RE31978 Well tool having knitted wire mesh seal means and method of use thereof  
A well tool, such as a packer apparatus, is adaptable for insertion on a conduit within a subterranean well having casing therein. The well tool comprises a cylindrical mandrel which is...
4477104 Releasable latching apparatus  
There are disclosed two embodiments of an apparatus for releasably latching the lower end of a tubing string within the bore of an upstanding well conduit by means of latching parts adapted to be...
4441560 Setting tool  
A setting tool is shown of the type adapted to be made up in a pipe string for releasably engaging a setting sleeve in a well bore. The setting tool has a mandrel having an upper end adapted to be...
4437516 Combination release mechanism for downhole well apparatus  
A well packer or other downhole tool is provided with a combination shear and rotational release mechanism comprising a release member having a set of internal threads selectively engageable with a...
4411314 Attachment means for use for insertion and retrieval of a casing packer  
Apparatus is provided for use with a packer positionable in a casing in which the packer has an upstanding male location member having a noncircular peripheral configuration having a...
4408662 Retrievable packer for oil well casing  
A retrievable packer for use in an oilwell casing, the packer having a central shaft with means at the upper end for attachment of an insertion or retrieval tool, an upper body portion having an...
4407514 Wellhead casing packing support  
A packing support assembly (10) which is sleeved about a well casing ("C"), or the like, and secured thereto without the need for piercing the casing wall or welding thereto. The support assembly...
4388971 Hanger and running tool apparatus and method  
A conduit gripping tool such as a packer or hanger is provided for use in subterranean wells, together with a running tool and a method for installing the gripping tool in the well. Threaded means...
4372563 Packing support for mounting a well casing packing  
A packing support assembly (10) adapted to be sleeved about a well casing ("C"), or the like, and secured thereto without the need for piercing the casing wall or welding thereto. The support...
4372388 Subsurface control valve  
A subsurface control valve for use in shutting off a well bore. The valve comprises a valve assembly and a stinger assembly, which is run into the well bore on drill pipe with a packer placed below...
4349071 Cement retainer and setting tool assembly  
A well tool assembly comprising a drillable cement retainer and setting tool includes a connection between a setting-tool mandrel and a retainer mandrel allowing for opening and closing of a cement...
4313497 Pressure control valve  
An upstanding valve body assembly is provided defining a center axis and includes radially expandable and retractable slips. The assembly includes a slip actuator rotatable relative to the...
4058162 Well tool adapted to be locked within and sealed with respect to the bore of the well conduit  
There is disclosed well apparatus which comprises a well conduit having a bore therethrough and a well tool having means thereon for releasably locking it within and sealing it with respect to the...
3924678 Casing hanger and packing running apparatus  
Casing hanger and packing running apparatus is lowered on a tubular running string to locate the casing hanger and packing in a surrounding housing beneath a body of water. The apparatus is...
3887006 Fluid retainer setting tool  
The invention is a cement retainer setting tool for use with cement slurry or similar liquid retainer devices in a well bore. The setting tool has a centrally disposed elongated mandrel which has...
3871447 TUBING HANGER SETTING TOOL  
A setting tool releasably attachable to a tubing hanger and lowered into a well casing on a running string, the hanger being set in the casing by fluid pressure imposed on the setting tool to...
3726343 APPARATUS AND METHOD FOR RUNNING A WELL SCREEN AND PACKER AND GRAVEL PACKING AROUND THE WELL SCREEN  
Apparatus and method for running a well screen and packer in a well and gravel packing around the well screen, wherein the well screen and packer are run into the well together on a tubing work...
3677341 HANGER AND PACKER WELL TOOL  
A combination oil well liner hanger and packer with a related setting tool which is such that the packer can not be actuated to seal between the tool and a surrounding casing until after the casing...
3608634 HYDRAULIC SET LINER HANGER  
A liner hanger employing a hydraulically actuated setting tool structure which is removable substantially entirely after setting of the hanger leaving a minimal amount of hanger structure in the...
RE13457 Title is not available  
3483921 WELL PACKER HAVING A SELECTIVELY POSITIONABLE VALVE MEANS  
3468375 OIL WELL LINER HANGER  
Matches 1 - 50 out of 91 1 2 >