Class 166/87.1 - Axially movable type valve

Subclass of Class 166 - Wells
Definition: Inner member seal with valve comprising a flow regulating
No. of patents: 31
Last issue date: 04/08/2008

Number	Title	Issue Date
7353868	Wireline coupler A wireline coupler, for use in oil wells and gas wells to connect a perforating gun to the wireline from which the perforating gun is suspended, is designed to eliminate jamming of the wireline between the casing and the perforating gun when the perforating gun is p...	04/08/2008
7325598	Vacuum assisted seal engagement for ROV deployed equipment A method and apparatus for attaching a first component which comprises a depending portion to a second component which comprises a bore that is sized and configured to receive the depending portion, wherein the first and second components are exposed to a fluid whic...	02/05/2008
7308943	Well operations system A wellhead has, instead of a conventional Christmas tree, a spool tree in which a tubing hanger is landed at a predetermined angular orientation. As the tubing string can be pulled without disturbing the tree, many advantages follow, including access to the producti...	12/18/2007
7140455	Valve method for drilling with casing using pressurized drilling fluid A valve (30), a drill string valve assembly (10) and a method of drilling using compressed fluid as a drill drilling fluid are described. The valve and valve assembly (10) may be used in order to prevent escape of compressed fluid during the tim...	11/28/2006
7073591	Casing hanger annulus monitoring system A subsea wellhead assembly has the capabilities of communicating from a tree assembly mounted on an inner wellhead housing to a casing annulus. A passage in the wellhead assembly extends within the bore of the wellhead housing from the casing annulus to the tree ass...	07/11/2006
7062960	Blow out preventer testing apparatus The consequences of any failure of a blow out preventer assembly to operate correctly in an emergency can be far reaching. Thus, there is provided an apparatus for registering parameters in the bore of a member which is, in use, connected to a pressurised housing, t...	06/20/2006
7055611	Plug-dropping container for releasing a plug into a wellbore A plug-dropping container used for releasing plugs or other objects into a wellbore during fluid circulation procedures. In one aspect, the plug-dropping container is used as part of a cementing head. The plug-dropping container comprises an elongated housing, and a...	06/06/2006
7025132	Flow completion apparatus A flow completion apparatus comprises a wellhead housing installed at an upper end of a well bore and a tubing spool connected over the wellhead housing. The tubing spool includes a central bore extending axially therethrough, a production outlet communicating with ...	04/11/2006
6978839	Internal connection of tree to wellhead housing A subsea wellhead assembly has a tree that connects internally to the bore of wellhead housing. The tree has a lower end that has a lock member that is moved radially outward into engagement with a profile in the bore of the wellhead housing. The tree is a monobore,...	12/27/2005
6938696	Backpressure adapter 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...	09/06/2005
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
6679330	Tubing hanger with ball valve An apparatus for use in a subsea well including a bore, wherein the apparatus has a tubing hanger body having an annulus therethrough, a ball valve in the annulus adapted for opening and closing the annulus, comprising a ball valve body within a valve cha...	01/20/2004
6675900	Crossover tree system A subterranean oil or gas well apparatus is provided. The apparatus includes a single-bore production tubing hanger arranged concentric with a wellhead. The tubing hanger includes a plurality of ports and channels arranged about the tubing hanger to give ...	01/13/2004
6626239	Internal gate valve for flow completion systems A gate valve for a component which includes an elongated body and a flow passage extending generally longitudinally through the body, the flow passage including a generally lateral first branch connected to a generally longitudinal second branch. The gate...	09/30/2003
6497277	Internal gate valve for flow completion systems A gate valve for a component which includes an elongated body and a flow passage extending generally longitudinally through the body, the flow passage including a generally lateral first branch connected to a generally longitudinal second branch. The gate...	12/24/2002
6494257	Flow completion system A flow completion system for controlling the flow of fluid from a well bore, the flow completion system comprising a tubing spool which includes a central bore that extends axially therethrough and a production outlet which communicates with the central b...	12/17/2002
6488083	Tubing hanger system A tubing hanger for a flow completion system which comprises a Christmas tree connected above a wellhead housing that includes a central bore in which the tubing hanger is supported, the tubing hanger comprising a generally annular body; a production bore...	12/03/2002
6453995	Tubing hanger saddle valve A tubing hanger incorporates a flow control valve that is ordinarily found in a horizontal christmas tree. A branch passage forming a production fluid outlet has a mouth that intersects with a vertical production bore. A valve closure element in the form ...	09/24/2002
6378613	Large bore subsea Christmas tree and tubing hanger system A concentric tubing hanger having a radially offset tubing annulus passage closeable by a remotely operable valve, preferably a pressure balanced, hydraulically-operated shuttle valve positioned at an upper end of the tubing annulus passage. The tubing ha...	04/30/2002
6276386	Charging device for hydraulic systems There is described herein an apparatus for charging a fluid line through a coupler such as a penetrator. The apparatus comprises a body formed from a sidewall defining a bore positioned along the longitudinal axis and extending therethrough. The first end...	08/21/2001
5971079	Casing filling and circulating apparatus A casing fill and circulator assembly is disclosed. The fill valve is constructed so that the valve member moves out of the main flowpath when the valve is in the open position. The valve is constructed so that flow opens it and the majority of the pressu...	10/26/1999
5819851	Blowout preventer protector for use during high pressure oil/gas well stimulation An apparatus for protecting blowout preventers during well fracturing and/or stimulation treatments is disclosed. The apparatus includes a hollow spool with spaced-apart inner and outer sidewalls that define an annular cavity. A mandrel is forcibly recipr...	10/13/1998
5769162	Dual bore annulus access valve The present invention is directed to an annulus access valve system for selectively opening and sealing an annulus bore in a wellhead apparatus comprising an annular bore insert sealingly and fixedly attached within the annulus bore; at least one flow por...	06/23/1998
5372202	Wellhead isolation tool and method of use A wellhead isolation tool is disclosed that is unique because the tool has no direct connection between the high pressure valve and the mandrel. Well stimulation fluids are pumped through one or more high pressure bores which communicate with a mandrel in...	12/13/1994
5226478	Cement port closure sleeve for a subsea well A subsea well assembly has a cement port closure sleeve which opens and closes a cement port in an outer wellhead housing. The outer wellhead housing secures to conductor pipe. An inner wellhead housing is lowered into the outer wellhead housing before th...	07/13/1993
4862960	Blowout preventer testing apparatus An improved well structure to be installed within a wellhead housing having an internal landing seat and an internal support groove above the landing seat, a hanger having an internal bore and an external landing shoulder with the hanger positioned within...	09/05/1989
4825945	Wellhead valve An improved wellhead valve includes a tubular body with a central passage therethrough and with a downwardly facing valve seat surrounding a portion of said passage, a cylindrical sealing surface above said valve seat, internal threads above said sealing ...	05/02/1989
4671353	Apparatus for releasing a cementing plug Apparatus for releasing a cementing plug. A first cylinder mounted on a plug container includes a plunger received therein which is longitudinally moveable into the plug container for supporting a cementing plug. A second cylinder received over the first ...	06/09/1987
4456062	Flow diverter Apparatus is disclosed which is adapted for connection to a drilling conduit beneath a drilling rig floor for diverting pressurized well bore fluid in the conduit from the rig and sealing the annulus between a pipe or other object and the conduit or closi...	06/26/1984
4444401	Flow diverter seal with respective oblong and circular openings A seal member of elastomeric material which is shaped to fit sealably within a recess of a flow diverter body. On the inside of the diverter body, a seal is effected against a slidable cylindrical valve sleeve. On the outside of the diverter body, a seal ...	04/24/1984
4125155	Tubing hanger with fail-safe control passageway A tubing hanger supported in a wellhead and in turn supporting tubing therefrom, and having an upper end adapted to be engaged by a Christmas tree. The hanger includes an annulus control passageway extending between the annulus between the tubing and casi...	11/14/1978

PatentStorm

Quotables

PatentStorm News

Class 166/87.1 - Axially movable type valve