Class 166/332.5 - Valving means inserted or retrieved to operate

Subclass of Class 166 - Wells
Definition: Longitudinally moveable operator wherein the flow regulating
No. of patents: 37
Last issue date: 05/13/2008

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Number	Title	Issue Date
7370698	Method and apparatus for transferring rig weight to tubulars A multi-functional apparatus and method for drilling fluid and cementing operations to set casing in a wellbore for use on either top drive or rotary type rigs. The apparatus and method includes a fill-up and circulating tool, a cementing head assembly, a wiper plug...	05/13/2008
7347269	Flow tube exercising tool A flow tube exercising tool and method for use are described for actuating the flow tube of a downhole safety valve in order to remove build ups of scale and debris from the safety valve and ensure proper operation. The exercising tool provides a lower engagement po...	03/25/2008
7347268	One trip flow tube exercising tool A flow tube exercising tool and method for use are described for actuating the flow tube of a downhole safety valve in order to remove build ups of scale and debris from the safety valve and ensure proper operation. The exercising tool provides an engagement portion...	03/25/2008
7152688	Positioning tool with valved fluid diversion path and method A positioning tool for moving an element in a flow path of a down hole system without actuating a pressure actuated device in the system. The positioning device includes a choke for restricting flow of fluid between the positioning device and the down hole system, a...	12/26/2006
7096948	Method and multi-purpose apparatus for dispensing and circulating fluid in wellbore casing A multi-functional apparatus and method for drilling fluid and cementing operations to set casing in a wellbore for use on either top drive or rotary type rigs. The apparatus and method includes a fill-up and circulating tool, a cementing head assembly, and a wiper ...	08/29/2006
7082996	Method and apparatus to complete a well having tubing inserted through a valve A method and apparatus for inserting a small diameter continuous hydraulic conduit or capillary tube down a well bore is presented. The methods and apparatus allow either the injection of chemicals to enhance production of oil and gas, or to provide a conduit for pr...	08/01/2006
6918439	Backpressure adaptor pin and methods of use A tubing assembly including a tubing string and tubing hanger provides a fluid passage with backpressure threads for securing a backpressure plug in a fluid-tight seal below the tubing hanger, so that the tubing hanger can be removed from the tubing string. The back...	07/19/2005
6799633	Dockable direct mechanical actuator for downhole tools and method The present invention provides an improved system and method for performing a desired operation at a remote location in a wellbore. The system is composed of a downhole docking station assembly and a detachable downhole tool assembly. The downhole tool assembly incl...	10/05/2004
6719061	Apparatus and method for inserting and retrieving a tool string through well surface equipment Well surface equipment is provided to seal around the outer surface of portions of tool sections as the tool sections are assembled or disconnected in a portion of the well surface equipment. The portion of the well surface equipment is isolated from wellhead pressu...	04/13/2004
6695049	Valve assembly for hydrocarbon wells A valve assembly for hydrocarbon wells comprises a first valve (e.g., a conventional gate valve) and a second valve (e.g., a hydraulically operated, fail safe check valve). The second valve provides an alternative to the pressure barrier conventionally fo...	02/24/2004
6681852	Tubing hanger shuttle valve A tubing hanger to facilitate production tubing annulus access including a tubing hanger body having a central bore, a shuttle valve slidably mounted to the tubing hanger body, and at least one annulus access bore through the tubing hanger permitting flui...	01/27/2004
6644110	Measurements of properties and transmission of measurements in subterranean wells A system of measuring properties, such as pressure, and transmitting measurements in a subterranean well. In a described example, a valve system includes a valve having a closure member. A sensor senses a pressure differential across the closure member. A...	11/11/2003
6561272	Technique for deploying a liner into a subterranean wellbore A technique for deploying a liner within a wellbore. The technique utilizes a flush bore running tool that may be coupled to the interior of the liner during deployment of the liner. The mechanism for coupling the running tool and the liner permits the us...	05/13/2003
6343658	Underbalanced well completion Apparatus and associated methods are provided which facilitate underbalanced drilling and completion of wells. In a described embodiment of a well control valve, the valve is opened and closed when a drill string is displaced therethrough. A shifting devi...	02/05/2002
6321842	Flow control in a wellbore A completion string for use in a wellbore includes a tubing having a bore and a housing providing a main bore communicating with the tubing bore and further defining plural side bores generally parallel to each other. A plurality of valves are positioned ...	11/27/2001
6298919	Downhole hydraulic path selection A method of servicing a well and an associated well system provide convenient downhole hydraulic path selection. In a described embodiment, a hydraulic path selector is preconfigured for selection of a desired hydraulic path set, and then the selector is ...	10/09/2001
5865254	Downhole tubing conveyed valve A downhole valve is disclosed for use in a tubing-conveyed string of tools in a well bore, constructed to be actuated to open under pressure forces by dropping a drop bar from the well surface through the tubing. The valve, deployed in the well in a close...	02/02/1999
5531270	Downhole flow control in multiple wells Remotely controllable fluid flow control valves are disposed in the main wellbore and branch wellbores of a multiple well. Each flow control valve has a radio frequency range receiver, a controller and an actuator for moving a closure member to a selected...	07/02/1996
5488992	Spoolable flexible sliding sleeve A coiled tubing completion system is provided with a plurality of completion apparatus, all of which is designed flush with the diameter of the coiled tubing outside diameter for avoiding upsets and are flexible, spoolable on a coiled tubing reel and havi...	02/06/1996
5472054	Free pumping apparatus safety valve system and method A free pumping apparatus safety valve system for use in producing a formation fluid source that mounts to the bottom end of a tubing within the well bore fluid communication conduit of a producing well. The free pumping apparatus has two main parts, the p...	12/05/1995
5167278	Well testing apparatus Apparatus for testing an oil well comprises a tubular test string (10) fixed at the bottom of production tubing (11) and including a ball test valve (14) at its bottom end. The apparatus also includes a wireline assembly (50) suspended from a cable (51) s...	12/01/1992
5137086	Method and apparatus for obtaining subterranean fluid samples Improved methods and apparatus are provided for obtaining multiple fluid samples from subterranean formations of interest. The present invention is particularly well suited for testing nuclear migration in ground water utilizing test wells surrounding a n...	08/11/1992
5099919	Plug for well logging operations A logging plug for suspension on a wireline comprises a hollow body provided with packers for sealing it to a nipple included in a tubing string, and a flow tube through which the line may slide with minimal leakage. A sliding equalizing tube in the lower...	03/31/1992
4848463	Surface read-out tester valve and probe A well testing apparatus includes a housing having a formation fluid flow passage. A sliding sleeve tester valve is reciprocably disposed in the housing. A probe separable from the housing and constructed to be received coaxially within the sliding sleeve...	07/18/1989
4842064	Well testing apparatus and methods Well testing apparatus including a landing receptacle for placing in a well tubing, preferably near the well packer, and a well test tool lowerable with instrumentations into the tubing on a flexible line and anchorable in the landing receptacle, the test...	06/27/1989
4830107	Well test tool A well test tool including a valve lowerable into a well on a flexible line and locked and sealed in a downhole landing receptacle, the valve being openable and closable to permit or prevent flow therethrough, well pressures below the test tool being sens...	05/16/1989
4718488	Pump-out plug system for a well conduit A landing nipple having a landing sub is adapted to be connected to a production well conduit. When temporarily abandoning the well, a pump-out plug is seated in the landing sub and includes a bi-directional valve which allows flow through the plug when r...	01/12/1988
4678035	Methods and apparatus for subsurface testing of well bore fluids In the representative embodiments of the new and improved methods and apparatus disclosed herein, a full-bore valve is cooperatively arranged to be tandemly coupled in a typical production string including a string of production pipe that is coupled to a ...	07/07/1987
4583592	Well test apparatus and methods A well test tool for closing a well at a downhole location below the well packer and near the formation to be tested, the apparatus being openable and closable from the surface by tensioning and relaxing the cable or wire line on which it is lowered into ...	04/22/1986
4508174	Downhole tool and method of using the same A downhole tool includes a pipe string portion which is disposed in a pipe string of a well and a probe portion which can be lowered by wireline or other suitable means into the well for engagement with the pipe string portion. The pipe string portion inc...	04/02/1985
4462465	Controlling injection of fluids into wells A side pocket mandrel has an elongated receptacle in the side pocket, parallel with the main bore. A lateral side port communicates the receptacle with the exterior of the side pocket of the mandrel. A flow control assembly includes a sliding sleeve valve...	07/31/1984
4453599	Method and apparatus for controlling a well A method and apparatus for annulus flow systems in which a safety valve controls flow adjacent the packer and the safety valve is operated by control of tubing pressure exerting an upward force on the valve operator and an urging device such as a weight s...	06/12/1984
4407362	Flow control apparatus for wells A side pocket mandrel for use in gas lift wells and having a sleeve valve in its side pocket receptacle for closing the receptacle's lateral ports when no flow control device is disposed therein. The sleeve valve is latched in its port-closing position bu...	10/04/1983
4274485	Method and system for well testing A well testing system and method in which a by-pass valve is positioned in the tubing and a probe run on a line from the surface opens and closes the valve with vertical movement of the probe. The probe when landed in the valve is exposed to formation flu...	06/23/1981
4109712	Safety apparatus for automatically sealing hydraulic lines within a sub-sea well casing An improved safety apparatus for automatically sealing hydraulic lines within a sub-sea well casing when said casing is disconnected from an associated well head connector and Christmas tree assembly, has mandrel means associated with a well head connecto...	08/29/1978
4083401	Apparatus and methods for testing earth formations Improved apparatus and methods are provided for conducting drill stem and production testing operations. A bypass sub removably receives a wireline tool in sealing engagement within a bypass sub bore, with the bypass sub including bypass passage means and...	04/11/1978
4066128	Well flow control apparatus and method A side-pocket mandrel for supporting a flow control device such as a gas lift valve along a well flow conductor and a method of operating same. The mandrel is connectible with pipe sections to form an integral length of a flow conductor and has a central ...	01/03/1978

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Class 166/332.5 - Valving means inserted or retrieved to operate