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Class 166/77.3 - Chain injector


Subclass of Class 166 - Wells
Definition: Moved coiled tubing wherein the tubing is pushed by a series
No. of patents: 86
Last issue date: 03/13/2012


1      
NumberTitleIssue Date
8132617Gripper block
A gripper block for conveying continuous rod in a well bore comprises a carrier body formed of a first metal and arranged to be mounted on one of the pair of continuous drive chains of a continuous rod conveying apparatus. A gripping element supported on the carrier...
03/13/2012
7857042Coiled tubing injector head
An improved coiled tubing injector head, comprising a plurality of powered chain loops, each having one practically straight side adjacent to the other chain loop(s) and biased against a tubing running in-between all the loops so as to grip the tubing and allow its ...
12/28/2010
7810556Lubricator for use with coiled tubing apparatus and universal rig having coiled tubing and top drive capability
A lubricator for use with a coiled tubing injector comprising an elongated housing having a first end and a second end. There is a guide system disposed in the housing for guiding coiled tubing passing through the housing, a first director proximal the first end of ...
10/12/2010
7467659Tubing injector head
A tubing injector head, includes a main body adapted for mounting on a well. A pair of gripper chain supports are mounted to the main body. Each gripper chain support has an upper chain sprocket at an upper end and a lower chain sprocket at a lower end. A drive moto...
12/23/2008
7431097Apparatus and method for injecting tubing into a well
The disclosed invention is an apparatus for injecting tubing into a well while sensing wear within the apparatus, along with a method for sensing wear, according to which the tubing is engaged by a chain and the linear motion of the tubing and the chain is sensed.
10/07/2008
7401656Mobile drilling rig with dual carriers
A rig (10) for selectively inserting coiled tubing or threaded tubulars into a well includes a mast (14) extending upward from a mast carrier (12), and a coiled tubing injector (16) and a coiled tubing reel (26) supported on a coil...
07/22/2008
7383890Universal rig with vertical stand for tubulars
The rig (10) is provided for electively inserting either coiled tubing or a threaded tubular through a rig floor and into a well. The rig includes a coiled tubing injector (16) supported on a mast (14) when in an operative position to insert coi...
06/10/2008
7380589Subsea coiled tubing injector with pressure compensation
A pressure compensated tubing injector for injecting coiled tubing into a subsea wellhead or flowline. A traction device including grippers carried on respective opposing chain loops provides gripping engagement with the coiled tubing to longitudinally move the coil...
06/03/2008
7331384Stabberless pipe handling system
A pipe handling apparatuses is suspended between the bails of a rig to raise, lower and laterally move a single joint of pipe that is being added to a string of pipe extending into a well. ...
02/19/2008
7318482Balanced continuous well string injection unit
A continuous well string injection unit and balancing system, in which the continuous well string injection unit is suspended using a sling connected to a pair of suspension points. The balancing system comprises a length-adjustable member connected to the rod injec...
01/15/2008
7316269Enclosed radial wire-line cable conveying method and apparatus
A relatively light weight radial wire-line conveyance mechanism capable of sustained high pressure incorporated into a wire-line riser set-up and configured to allow multiple radial bends without sheaves. The conveyance mechanism includes a segmented tubular body st...
01/08/2008
7281585Offshore coiled tubing heave compensation control system
An offshore oil well assembly is provided that includes a floating vessel and a coiled tubing injector supported on the floating vessel. A coiled tubing string is movable by the injector into and out of a wellbore. The assembly also includes at least one measurement...
10/16/2007
7281588Tubular injector apparatus and method of use
The invention generally relates to apparatus and methods for moving tubulars into and out of a well bore, and particularly, a tubular injector with two or more gripping members which bind the outer surface of the tubular, two or more actuators which cause the grippi...
10/16/2007
7270190Variable size coil tubing gripping elements
A variable ram for coiled tubing comprises a pair of opposing rams, each ram having a ram body with a vertical channel formed therein; a pair of opposing pins within each ram head, the pins extending into the channel; and a toothed gripper having a hole therein size...
09/18/2007
7264057Subsea intervention
A method and system of subsea intervention comprises lowering one or more assemblies of intervention equipment into the sea. Underwater marine units (such as remote operated vehicles or small submarines) may be employed to connect the assemblies to each other and to...
09/04/2007
7191840Casing running and drilling system
A method and apparatus for holding and turning a tubular and string of tubulars, such as casing, for make-up and drilling with the tubulars are disclosed. The apparatus generally includes a spear and a clamping head, both of which are mounted to a top drive. The spe...
03/20/2007
7185708Coiled tubing/top drive rig and method
The rig for selectively inserting coiled tubing or a threaded tubular through a rig floor 13 and into a well includes a mast 15 extending upward from the rig floor and movable between a threaded tubular position and a coiled tubing position. A top driv...
03/06/2007
7182140Coiled tubing/top drive rig and method
The rig for selectively inserting coiled tubing or a threaded tubular through a rig floor 13 and into a well includes a mast 15 extending upward from the rig floor and movable between a threaded tubular position and a coiled tubing position. A top driv...
02/27/2007
7165619Subsea intervention system, method and components thereof
The subsea intervention system (SIM) includes a BOP module 10 and CT module 20. A tool positioning system 76 is used for positioning a selected subsea tool 22 stored within a rack 18 with a tool axis in line with the BOP axis, whil...
01/23/2007
7150330Hydraulic circuit and method for operating a gripping device
A hydraulic circuit and method for operating a gripping mechanism according to which fluid is passed from a source to the device while some of the fluid is passed to a valve that is adjustable to control the amount of fluid passed to it and therefore the amount of f...
12/19/2006
7124815Tubing injector for variable diameter tubing
A tubing injector apparatus for use with variable diameter tubing. The apparatus comprises a pair of carriages which may be moved transversely and pivotally with respect to one another by actuating hydraulic actuator cylinders. A hydraulic control system uses relief...
10/24/2006
7090026Apparatus and method for injecting tubing in a well bore
An apparatus and method for moving a tubing along a path, according to which the tubing is engaged by an outer chain which is driven to advance the tubing. The chain is adapted to be deflected radially in response to an increase in the diameter of the tubing, and a ...
08/15/2006
7073592Jacking frame for coiled tubing operations
A modular work system permits Rig Up time to be substantially reduced by reducing the number of crane lifts required to offload equipment for a transport boat or vehicle. This is achieved by developing transport skids capable of holding multiple system components. T...
07/11/2006
7051803Enclosed radial wire-line cable conveying method and apparatus
A relatively light weight radial wire-line conveyance mechanism capable of sustained high pressure incorporated into a wire-line riser set-up and configured to allow multiple radial bends without sheaves. The conveyance mechanism includes a tubular body structure ca...
05/30/2006
7051814Subsea coiled tubing injector with pressure compensated roller assembly
A tubing injector (10) includes a traction device (12) having opposed grippers (14) laterally moveable so as to move a respective chain link member (16) of an endless loop chain into gripping engagement with the coiled tubing. A drive mot...
05/30/2006
7051818Three in one combined power unit for nitrogen system, fluid system, and coiled tubing system
A single tractor unit is provided for pulling a trailer, in which the tractor itself drives a plurality of hydraulic motors which control a crane unit, a coiled tubing injection unit, and the pumps and motors associated with a liquid nitrogen system which is used fo...
05/30/2006
7040331High pressure tube cleaning apparatus
An assembly for rotating and axially directing a high pressure spray hose and spray head to clean residue from the bores of thermal transfer tubes. The assembly includes a number of subassemblies that are concentrically aligned and mounted to rotate in synchrony and...
05/09/2006
7036578Tubing guide and coiled tubing injector
A coiled tubing injector assembly includes a coiled tubing injector and a tubing guide. The tubing guide has an automatic clamping mechanism that includes a pair of clamping slips. The clamping slip will automatically move from an open position in which coiled tubin...
05/02/2006
7032676Well string injection system and method
A continuous feed injection unit used for example for injection and removal of continuous well string from wells operates in a dual speed configuration. The unit comprises a first hydraulic motor, a second hydraulic motor, cooperating continuous well string gripping...
04/25/2006
7032499Hydraulic circuit and method for operating a sealing device
A hydraulic circuit and method for operating a hydraulic device according to which fluid is passed from a source to the device while some of the fluid is passed to a valve that is adjustable to control the amount of fluid passed to it and therefore the amount of flu...
04/25/2006
6968894Coiled tubing injector apparatus
A coiled tubing injector apparatus for use in inserting coiled tubing into a well, temporarily suspending the coiled tubing, and removing the coiled tubing from the well is described. The apparatus includes a base with a pair of spaced-apart carriages extending upwa...
11/29/2005
6953136Drawing machine
A drawing machine includes a drawing die and a continuously working drawing device, the drawing device comprising only one closed drawing member that is guided around axis-parallel wheels and is driven in a controlled manner via at least one of the wheels. The drawi...
10/11/2005
6910530Coiled tubing injector apparatus
A coiled tubing injector apparatus for use in inserting coiled tubing into a well, temporarily suspending the coiled tubing, and removing the coiled tubing from the well is described. The apparatus includes a base with a pair of spaced-apart carriages extending upwa...
06/28/2005
6907934Universal top-drive wireline entry system bracket and method
A bracket and tension rod device is mounted to a top-drive dolly to carry the weight of a sheave wheel assembly. The device is deployed by connecting the sheave wheel assembly to a rigid dolly arm with an adjustable tension rod to relieve a gooseneck from adverse te...
06/21/2005
6892810Gripper block for coiled tubing injector with variable tubing size capability
An improved V-style gripper block to better accommodate a variable outer diameter material (e.g. cable, plastic, wire, or pipe). The gripper block comprises a block body being connectable to a gripper chain in an injector apparatus, a gripper plate having arcuate an...
05/17/2005
6892809Coiled tubing injector apparatus
A coiled tubing injector apparatus for use in inserting coiled tubing into a well, temporarily suspending the coiled tubing, and removing the coiled tubing from the well is described. The apparatus includes a base with a pair of spaced-apart carriages extending upwa...
05/17/2005
6880629Well string injection system with gripper pads
A continuous well string injection unit, comprising a pair of motor driven continuous chains mounted opposed to each for gripping coiled rod between them. Plural links are connected end to end in each one of the pair of motor driven continuous chains, in which each ...
04/19/2005
6843321Intervention device for a subsea well, and method and cable for use with the device
A device for intervention of a subsea oil and/or gas well by means of a tool (8) suspended by a cable (9), fed from or withdrawn to a vessel (1) and driven by a drive mechanism (12) located on the vessel. The device comprises a lubricator...
01/18/2005
6763890Modular coiled tubing system for drilling and production platforms
A modular work system permits Rig Up time to be substantially reduced by reducing the number of crane lifts required to offload equipment for a transport boat or vehicle. This is achieved by developing transport skids capable of holding multiple system components. T...
07/20/2004
6758289Method and apparatus for hydrocarbon subterranean recovery
Enhanced horizontal drilling systems and methods encompass the production of crude oil from wells drilled from a subterranean production facility. This approach has the location of the well head below the oil reservoir to improve flow rate and recovery due to the co...
07/06/2004
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