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| Number | Title | Issue Date |
| 8171995 | Pressure relieving transition joint A method of completing a wellbore having a branch wellbore extending outwardly from a window in a parent wellbore comprises positioning a tubular string in the window, wherein the positioning comprises deflecting the tubular string from the parent wellbore into the ... | 05/08/2012 |
| 8037938 | Selective completion system for downhole control and data acquisition A completion system including a packer disposed in a wellbore and a tubular string having a bore therethrough configured to land into the packer. The tubular string includes an alignment sub, a seal assembly disposed below the alignment sub and having at least two l... | 10/18/2011 |
| 7984762 | Pressure relieving transition joint A method of completing a wellbore having a branch wellbore extending outwardly from a window in a parent wellbore is provided. The method comprises positioning a tubular string in the window, wherein the positioning comprises deflecting the tubular string from the p... | 07/26/2011 |
| 7918282 | Zone isolation assembly array and method for isolating a plurality of fluid zones in a subsurface well A zone isolation assembly array (794) for a well (712) includes a first zone isolation assembly (722A) and a second zone isolation assembly (722B). The first zone isolation assembly (722A) selectively inhibits fluid communication b... | 04/05/2011 |
| 7878249 | Communication system and method in a multilateral well using an electromagnetic field generator To perform communications in a multilateral well, a first communication unit having an electromagnetic (EM) field generating element is provided to generate an EM field in a formation between a main bore and a lateral bore of the multilateral well. The EM field gene... | 02/01/2011 |
| 7866396 | Systems and methods for completing a multiple zone well A system for use in a wellbore having a plurality of well zones includes a tubing disposed in the wellbore; and a plurality of valves connected to the tubing, wherein each of the plurality of valves comprises at least one port for communication between the tubing an... | 01/11/2011 |
| 7823645 | Downhole inflow control device with shut-off feature A system and method for controlling inflow of fluid into a production string. In aspects, the invention provides a downhole sand screen and inflow control device with a gas or water shut-off feature that can be operated mechanically or hydraulically from the surface... | 11/02/2010 |
| 7789155 | Coiled tubing well intervention system and method An apparatus having a modular support frame with a top deck. The top deck has a passage therein. A tower is mounted on the top deck. A moveable plate and a track are positioned within the passage. The movable plate is slidingly attached to the track. A support rotar... | 09/07/2010 |
| 7735559 | System and method to facilitate treatment and production in a wellbore A technique enables simultaneous deployment of both treatment equipment and screen assemblies for use during production. The technique utilizes a multi-stage well treatment system deployed in a wellbore to enable treatment of a plurality of sections along the wellbo... | 06/15/2010 |
| 7694741 | Wellbore system and method for producing fluid A well system for producing fluid from an earth formation. A primary wellbore section produces the fluid from the well system to the surface. The primary wellbore section includes a cylindrical member having a number of apertures. At least one flanking wellbore runs... | 04/13/2010 |
| 7631696 | Zone isolation assembly array for isolating a plurality of fluid zones in a subsurface well A zone isolation assembly array (794) for a well (712) includes a first zone isolation assembly (722A) and a second zone isolation assembly (722B). The first zone isolation assembly (722A) selectively inhibits fluid communication b... | 12/15/2009 |
| 7584795 | Sealed branch wellbore transition joint A sealed branch wellbore transition joint. A method of completing a well having intersecting wellbores includes the steps of: positioning a diverter in a wellbore; diverting an assembly from the wellbore into another wellbore; and swelling a sealing material on the ... | 09/08/2009 |
| 7571771 | Cavity well system A method for accessing a subterranean zone includes forming a subterranean cavity coupled to a land surface and forming a plurality of substantially horizontal bores extending at least partially into the subterranean zone and intersecting the cavity. ... | 08/11/2009 |
| 7543647 | Multi-zone, single trip well completion system and methods of use An improved well completion system for completing two or more separate production zones in a well bore during a single downhole trip is disclosed. The improved completion system comprises a completion assembly comprising two or more production zone assemblies and a ... | 06/09/2009 |
| 7497264 | Multilateral production apparatus and method A wellbore junction. The junction includes a discrete primary leg and a discrete lateral leg connected to the primary leg, at least one of the legs comprising a plurality of non-nested flow passageways. ... | 03/03/2009 |
| 7490669 | Multi-zone, single trip well completion system and methods of use An improved well completion system for completing two or more separate production zones in a well bore during a single downhole trip is disclosed. The improved completion system comprises a completion assembly comprising two or more production zone assemblies and a ... | 02/17/2009 |
| 7464761 | Flow control system for use in a well A technique is provided to control flow in a well. A well completion comprises one or more flow control valve systems coupled by an electric line and a hydraulic line. Each flow control valve system comprises a flow control valve responsive to hydraulic input via th... | 12/16/2008 |
| 7445046 | Nested velocity string tubing hanger An outer tubing hanger is secured to an outer string of tubing and landed in a wellhead housing. A Christmas tree is connected to the wellhead housing. While in a first mode, an isolation tube extends between the tree and the outer tubing hanger for conveying well f... | 11/04/2008 |
| 7441605 | Optical sensor use in alternate path gravel packing with integral zonal isolation Devices and methods for monitoring wellbore conditions while conducting hydrocarbon production within a wellbore, particularly an open-hole wellbore, having multiple zones within. A production tubing string assembly is made up having a plurality of packers for seali... | 10/28/2008 |
| 7441604 | Fracking multiple casing exit laterals A method of fracking multiple laterals sequentially is described. It allows the drilling rig to be moved off site as the laterals are fracked. Thereafter, they can all be produced simultaneously. The laterals begin from a main lateral that is already oriented in the... | 10/28/2008 |
| 7438135 | Method of suspending, completing and working over a well Methods are provided in which reliance is placed on a first and second barrier respectively positioned in a well 10 to provide well control during well suspension, completion and/or workover operations. Each of the barriers is below the depth of the lowermost... | 10/21/2008 |
| 7431091 | Method and apparatus for wellbore fluid treatment A tubing string assembly for fluid treatment of a wellbore includes substantially pressure holding closures spaced along the tubing string, which each close at least one port through the tubing string wall. The closures are openable by a sleeve drivable through the ... | 10/07/2008 |
| 7419005 | Method of stimulating long horizontal wells to improve well productivity This invention relates to the field of treating subterranean formations to increase production. The method of the current invention is particularly useful in hydrocarbon wells that are long, for example, in excess of one kilometer. The method providing increasing pr... | 09/02/2008 |
| 7387164 | Method and apparatus for selective injection or flow control with through-tubing operation capacity An in-line flow control device for a well chokes flow through a conduit while allowing access therethrough. ... | 06/17/2008 |
| 7387165 | System for completing multiple well intervals A system for completing a well with multiple zones of production includes a casing having a plurality of valves that are integrated therein for isolating each well zone. Communication is established between each underlying formation and the interior of the casing, a... | 06/17/2008 |
| 7377322 | Method and apparatus for cementing production tubing in a multilateral borehole A hydraulically actuated anchor and a mechanically actuated packer are used in combination to secure a production tubing system in a lateral prior to injection of a cement to line the lateral borehole in which the production tubing is positioned. The packer is expan... | 05/27/2008 |
| 7377321 | Testing, treating, or producing a multi-zone well An assembly having plural valves is run into a wellbore having plural zones, where each of the valves is actuatable by dropping a valve-actuating object into the corresponding valve. The valves are successively actuating, in a predetermined sequence, to an open stat... | 05/27/2008 |
| 7373984 | Lining well bore junctions A well bore liner is carried on a working string into a main bore of a well. A well bore liner is directed from the main bore into an auxiliary bore of the well with a whipstock. The whipstock is coupled to a working string without withdrawing the working string fro... | 05/20/2008 |
| 7370699 | One trip cemented expandable monobore liner system and method An apparatus to protect the mounting area of casing and a locating profile and optionally a sliding sleeve valve and a flow path from the outside of the valve to the annulus when subsequent attachment of an expanded liner is intended and the expanded liner is to be ... | 05/13/2008 |
| RE40308 | Multi-purpose injection and production well system A method and apparatus for simultaneously producing fluid from one or more zones of an oil or gas well, while injecting fluid into one or more other zones of the well, and for converting a depleted production zone into an injection zone, by remotely shifting sleeves... | 05/13/2008 |
| 7370705 | Multiple zone downhole intelligent flow control valve system and method for controlling commingling of flows from multiple zones A production control system having a series of nested tubular members including at least one axial flow channel and at least two annular flow channels. At least one valve configured and positioned to control flow from each flow channel is provided. A producti... | 05/13/2008 |
| 7367401 | Ported velocity tube for gas lift operations An apparatus for use with a packer set within a well bore comprises a first flow path providing fluid communication between the well bore above the packer and the well bore below the packer, and a second flow path. A system for gas lifting fluids from a well bore wi... | 05/06/2008 |
| 7360595 | Method and system for underground treatment of materials A method for underground treatment of subsurface materials comprises providing an injection pattern and a recovery pattern, the injection pattern and the recovery pattern located proximate to a subsurface treatment zone and at least one of the injection pattern and ... | 04/22/2008 |
| 7360603 | Methods and apparatuses for wellbore operations A dual sided elevator for supporting a tubular member in a wellbore operation, the elevator in one aspect having an openable back end and an openable front end, either end openable by using opening apparatus at the front of the elevator; such an elevator with operat... | 04/22/2008 |
| 7357188 | Mono-diameter wellbore casing A mono-diameter wellbore casing is formed by radially expanding a first tubular liner off of a mandrel into contact with a second tubular liner. The first and second tubular liners are positioned within the wellbore in an overlapping relationship. The overlapping po... | 04/15/2008 |
| 7357182 | Method and apparatus for completing lateral channels from an existing oil or gas well A method and apparatus for completing a lateral channel from an existing oil or gas well includes a well perforating tool for perforating a well casing at a preselected depth, and a lateral alignment tool for directing a flexible hose and blaster nozzle through a pr... | 04/15/2008 |
| 7357189 | Seal There is disclosed an expandable seal for sealing at least part of a wall of a well borehole, an expandable seal assembly comprising at least two such expandable seals, and a method of sealing at least part of a well borehole using such a seal. In one embodiment, th... | 04/15/2008 |
| 7353878 | Apparatus and method for wellbore isolation An apparatus for isolating a selected leg of a wellbore from the remainder of the wellbore includes a packer positionable in the selected leg of the wellbore, a tube extending through the packer from an uphole side of the packer to a downhole side of the packer to p... | 04/08/2008 |
| 7353877 | Accessing subterranean resources by formation collapse A subterranean zone can be accessed from the surface by forming a well bore extending from the surface into the subterranean zone. A tubing string is provided within the well bore, and an underreamer passed over the tubing string to a specified location within the s... | 04/08/2008 |
| 7353867 | Whipstock assembly and method of manufacture The present invention discloses a whipstock assembly (100) for use in forming a lateral borehole from a parent wellbore. The whipstock assembly comprises a body (122) and a deflection member 120) above the body. The deflection member includes a ... | 04/08/2008 |
