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Cloaking System Using Optoelectronically Controlled Camouflage

A Cloaking System designed to operate in the visible light spectrum, utilizes optoelectronics and/or photonic components to conceal an object within it.

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Class 166/124 - Screw threaded


Subclass of Class 166 - Wells
Definition: Devices in which the connection comprises screw threads
No. of patents: 52
Last issue date: 12/20/2011


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NumberTitleIssue Date
8079413Bottom 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 tool through the first end thereof, at least one malleable element disp...
12/20/2011
7240728Expandable tubulars with a radial passage and wall portions with different wall thicknesses
A tubular liner including a first tubular portion, a second tubular portion, and an intermediate tapered tubular portion coupled to, and positioned between, the first and second tubular portions. ...
07/10/2007
7234522Apparatus 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 is lowered into the casing after the drill bit is removed. The float...
06/26/2007
7231982Perforating gun quick connection system
A connection system to be used in conjunction with a perforating gun comprising a top sub formed to receive one end of a gun body of a perforating gun, a circumferential groove disposed on the outer surface of the gun body, and a collet secured to the top sub. The c...
06/19/2007
7163066Gravity valve for a downhole tool
A gravity valve for a downhole tool for use in a subterranean well and a method of use thereof. The gravity valve is adapted to control the flow of a dowuhole fluid through the downhole tool. The gravity valve typically includes a plunger and a seat. The plunger may...
01/16/2007
7082991Slip spring with heel notch
In order to prevent premature separation of the slip and slip spring and to simplify production of the slip casing, a self-centering spring engageable with a packer tool slip is modified according to the present invention. A groove located at a lower center of the s...
08/01/2006
7063142Method of applying an axial force to an expansion cone
A method of applying an axial force to a first piston positioned within a first piston chamber including applying an axial force to the first piston using a second piston positioned within the first piston chamber. ...
06/20/2006
7044221Apparatus for coupling a tubular member to a preexisting structure
An apparatus for coupling a tubular member to a preexisting structure. ...
05/16/2006
7040396Apparatus for releasably coupling two elements
An apparatus for coupling two elements including an outer tubular member defining one or more outer tubular member slots, an inner tubular member defining one or more inner tubular member slots positioned within the outer tubular member, and a coupling assembly for ...
05/09/2006
7036581Wellbore seal device
A device for providing a seal between two tubular member in a downhole environment is presented. The sealing device provides the capability of “boosting” or improving the seal, in the event of hydraulic pressure increases from above or below the seal. ...
05/02/2006
6966370Apparatus for actuating an annular piston
An apparatus comprising a first tubular member; a second tubular member positioned within and coupled to the first tubular member; a first annular piston chamber defined by the space between the first and second tubular members; an annular piston movably coupled to ...
11/22/2005
6915856Apparatus and methods for preventing axial movement of downhole tool assemblies
A slip assembly apparatus is adapted (i) to be deployed into a wellbore (ii) to prevent axial movement of a downhole tool assembly in the wellbore when the slip assembly apparatus is actuated and external forces are imposed on the downhole tool assembly; (iii) to al...
07/12/2005
6823944Apparatus 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 casing. The liner, connected to the apparatus, is run into the well on a w...
11/30/2004
6675890Packing 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 transports the packing tool assembly and the former stays ...
01/13/2004
6343650Test, 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 valve, a rotation-operated reversing valve, a resettable packe...
02/05/2002
5971070Apparatus for completing a subterranean well and associated methods
Apparatus for completing a subterranean well and associated methods provide economical and efficient well completions. In one described embodiment, a well completion apparatus includes a packer which is settable by application of a compressive axial force...
10/26/1999
5697449Apparatus 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 manipulated from the surface to position the assembly at a ...
12/16/1997
5433275Double-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 tubing, and a collet mechanism axially movable relative to the m...
07/18/1995
5343954Apparatus 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 plurality of collet fingers adapted for engaging the packer,...
09/06/1994
5314014Packer 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 valve-actuating subassembly within the valve along with a locking coll...
05/24/1994
5207274Apparatus 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 elongated stinger member, a plurality of collet finger member...
05/04/1993
5154228Valving 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 on the running tool effects the opening of the safety val...
10/13/1992
5069280Gravel 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 between the packer and service tool, and open a passage thro...
12/03/1991
5058672Landing 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. The assembly includes an annular split ring expander and an...
10/22/1991
5058671Pipe 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. The assembly includes an annular split ring expander and an...
10/22/1991
4972908Packer 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 hydraulic or mechanical action or mechanical action alone...
11/27/1990
4862957Packer 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 hydraulically disengaged so that the tool can be removed withou...
09/05/1989
4848459Apparatus 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 packer, the lining, check valves and forced upwardly in th...
07/18/1989
4830103Setting 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 setting tool is rotated by a drill string to release an uppe...
05/16/1989
4735268Mechanical 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 releasably carried on the mandrel by a first release structure. A...
04/05/1988
4726419Single 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 is operatively associated with the housing for communicatin...
02/23/1988
4690220Tubular 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 with a tubular member engaging arrangement which responds to ...
09/01/1987
4681159Setting 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 interconnected to a setting tool by a first threaded nut mem...
07/21/1987
4669538Double-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 inner mandrel adapted for attachment to a liner screen. A pac...
06/02/1987
4646842Retrievable 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 threaded portion. A releasable connecting arrangement secure...
03/03/1987
4611663Casing 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, and wherein the packoff assembly 14 is held above the casin...
09/16/1986
4603743Hydraulic/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 alternatively, can be mechanically operated and released from...
08/05/1986
4598774Setting 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 hand as well as left hand rotation and is released from the ...
07/08/1986
4477104Releasable 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 received in latching position beneath a shoulder in the bor...
10/16/1984
4441560Setting 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 connected in the pipe string and having a lower end. A set...
04/10/1984
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