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| Number | Title | Issue Date |
| 8141630 | Sucker rod string An improvement in a sucker rod having an elongated metal body with opposed ends and threaded couplings positioned at each of the opposed ends comprises a thread form on the threaded couplings defining at least two concurrent helixes. Each of the at least two helixes... | 03/27/2012 |
| 8118093 | Threaded retention device for downhole transmission lines An apparatus for retaining and tensioning an end of a transmission line includes a nut element having internal threads configured to engage an externally threaded transmission line, such as an externally threaded coaxial cable, thereby retaining an end of the transm... | 02/21/2012 |
| 8113277 | Sucker rod end fittings and method of using same An end fitting for sucker rods or continuous sucker rods defines a rod receptacle with an interior surface defining void spaces having an axial radius of curvature of at least twenty inches. In one form, the fitting receptacle defines two such void spaces and the ra... | 02/14/2012 |
| 8042611 | Field joint for a downhole tool A field joint for connecting a plurality of downhole tool modules is disclosed. The modules include a housing and an electrical line. A bulkhead is coupled to a first module that includes a first conduit aperture for receiving an electrical connector assembly. The f... | 10/25/2011 |
| 8033330 | Tool string threads A downhole tool string component that includes a tubular body with an inner surface, an outer surface and a shoulder extending from the outer surface at one end of the tubular body, a sleeve disposed about the outer surface having an end face in contact with the sho... | 10/11/2011 |
| 7992638 | Downhole disconnect mechanism A release device includes a first sub, a second sub, and a connector separably connecting the first and the second sub, wherein the connector includes a shear member disposed with the first sub and a collar connected between the second sub and the shear member. ... | 08/09/2011 |
| 7938177 | Circulating sub tool for dispensing and circulating fluid in a well bore A circulator sub tool for dispensing and circulating fluid in a well bore having a threaded packer sub with a quick coupler body, and wherein diameters for each annulus of the quick coupler body and the sub body are substantially identical enhancing laminar flow thr... | 05/10/2011 |
| 7900698 | Downhole wet-mate connector debris exclusion system A downhole wet-connector and debris exclusion system includes a relatively stationary component; a relatively mobile component operably engageable with the relatively stationary component; at least one connector disposed behind a moveable debris exclusion member in ... | 03/08/2011 |
| 7841400 | Apparatus and system to allow tool passage ahead of a bit Drill bits are enable the use of tools in a wellbore when it is undesirable or impossible to remove the drill bit. Drill bits include a drill bit insert, a latch assembly, a housing, a running tool, and a shaft trigger to operate the latch assembly. ... | 11/30/2010 |
| 7832474 | Thermal actuator An embodiment of a system for disconnecting a first element from a second element at a desired position in a wellbore includes a disconnect tool containing an expandable material, the disconnect tool being actuatable from a locked position, wherein the first and the... | 11/16/2010 |
| 7823639 | Structure for wired drill pipe having improved resistance to failure of communication device slot A structure for wired drill pipe includes a pipe joint having a pin end and a box end. The pin end and box end each have threads for engagement with corresponding threads on a respective box and pin of an adjacent pipe joint. A longitudinal end of the threads on the... | 11/02/2010 |
| 7798212 | System and method for forming downhole connections A technique is provided to facilitate connection of completion assemblies at a downhole location. A completion assembly comprises a control line conduit having a connector designed for coupling with a corresponding connector of a next adjacent completion assembly. A... | 09/21/2010 |
| 7793718 | Communicating electrical energy with an electrical device in a well A completion system for use in the well includes a liner for lining the well, where the liner has a first inductive coupler portion. An electric cable extends outside an inner passage of the liner. The completion system further includes a second inductive coupler po... | 09/14/2010 |
| 7726396 | Field joint for a downhole tool A field joint used to connect downhole tool modules. The field joint includes a bulkhead, a connector block, and various electrical connections. The bulkhead couples to a first tool module and has a first connection face, which partially defines an exterior of the f... | 06/01/2010 |
| 7661474 | Connector assembly and method of use A connector assembly for interconnecting wellbore tools to form a tool string include a first adapter having a tool end connectable to a first wellbore tool and an alignment end, a mandrel that has a pin end and an opposing end, the pin end being matable with the al... | 02/16/2010 |
| 7654316 | Downhole connector A releasable connector (10) for joining tubular members in a well bore. The connector (10) is a mating screwthread (38, 58) which is terminated on each member by abutting projections (24, 64), operating as a ratchet. This ensures torque i... | 02/02/2010 |
| 7640977 | System and method for connecting multiple stage completions A technique is provided to facilitate connection of multiple stage completions. A first completion stage is deployed at a wellbore location. Subsequently, the next completion stage is moved downhole into engagement with the first completion stage. The completion sta... | 01/05/2010 |
| 7607477 | Optical wet connect A cable that delivers power, signals, or information is wet connected downhole. The lower portion of the cable can be in an auxiliary conduit to a main tubular and be installed already connected to sensors, instruments or other downhole equipment. The connection is ... | 10/27/2009 |
| 7556093 | Downhole fiber optic wet connect and gravel pack completion A downhole fiber optic wet connect and gravel pack completion. In a described embodiment, a system for making fiber optic connections in a subterranean well includes a first fiber optic connector positioned in the well and a second fiber optic connector operatively ... | 07/07/2009 |
| 7537053 | Downhole electrical connection In one aspect of the invention, a downhole power generation assembly has a downhole tool string component comprising a bore. A collar is rotatably supported within the bore and has a centralized fluid passageway and a plurality of turbine blades. The collar is conne... | 05/26/2009 |
| 7516783 | Double pin connector and hydraulic connect with seal assembly A double pin connector with hydraulic connect and seal assembly having a top portion. The top portion has an upper tubular portion. The upper tubular portion engages an intermediate tubular portion. The intermediate tubular portion has an upper flow path in fluid co... | 04/14/2009 |
| 7487830 | Method and apparatus to facilitate wet or dry control line connection for the downhole environment A wet connect arrangement for communication beyond obstructions in a wellbore such as gravel packs and lateral junctions, among others. The arrangement employs communication line at first and second tubulars and annular or part annular communication pathways between... | 02/10/2009 |
| 7431094 | Method for utilizing downhole safety joint A method of operating a safety joint that allows disconnection from a downhole section of a drill string without rotating the drill string. In an example class of embodiments, the innovative safety joint includes a sleeve with a j-slot that fits to a lug attached to... | 10/07/2008 |
| 7428932 | Completion system for a well A completion system for a well including an upper production tubing disposed within a wellbore. An upper packer engaging the upper production tubing a top pin connector with seal assembly engaging the upper packer. A first intermediate production tubing disposed bet... | 09/30/2008 |
| 7422068 | Casing patch overshot A connection to a stub downhole is accomplished in a variety of ways. A string has a tapered lower end inserted into the stub and expansion occurs from within the tapered lower end into the stub to leave a connection without reduction of the internal diameter. An ov... | 09/09/2008 |
| 7410001 | Coupling and sealing tubulars in a bore A method of sealing an expandable tubular within a bore comprises the steps of providing an expandable tubular describing a first diameter and having a sealing medium on its outer surface, running the tubular into a bore and expanding the tubular within the bore to ... | 08/12/2008 |
| 7407005 | Electrically controlled release device A cable release apparatus includes a housing and latch mounted at one end of the housing. The latch has a central opening and a plurality of projecting members extending into the housing. A releasable connector is mounted inside the housing. An actuator has one end ... | 08/05/2008 |
| 7404445 | Perimetrically loading collet A perimetrically acting collet includes a body and at least one mating profile opening in the body. A plurality of resilient members located adjacent one side of the at least one mating profile opening and a profiled body is biased perimetrically by the plurality of... | 07/29/2008 |
| 7404444 | Protective sleeve for expandable tubulars A protective sleeve for expandable tubulars. ... | 07/29/2008 |
| 7373988 | Liner running system and method A liner running system for placing a liner in a well bore comprises a latch sleeve connected to the liner and a running tool releasably attached to the latch sleeve. The latch sleeve has a wall thickness substantially the same as the wall thickness of the liner, and... | 05/20/2008 |
| 7373974 | Downhole release tool and method A release tool includes a first subassembly and a second subassembly. A connector is operable to selectively coupled the first subassembly to the second subassembly. A release guard is operable to selectively inhibit release of the connector. The release guard opera... | 05/20/2008 |
| 7367404 | Tubing seal A method of forming a seal between two tubular members comprising providing a first tubular member having an internal surface and an external surface describing a first diameter, with a recess in the external surface at a seal portion of the first tubular member. A ... | 05/06/2008 |
| 7363985 | Hydraulic latch for capillary tubing string An hydraulic latch for selectively securing and, when necessary, automatically releasing capillary tubing suspended in a well bore in a manner affording clearance of a subsurface safety valve through which the suspended capillary tubing is suspended prior to release... | 04/29/2008 |
| 7360594 | Drilling with casing latch A latch assembly, and methods of using the latch assembly, for use with a bottom hole assembly (BHA) and a tubular, are provided. In one embodiment, the latch assembly is disposable within the tubular, configured to be rotationally and axially coupled to the tubular... | 04/22/2008 |
| 7360798 | Threaded joint for steel pipes A threaded joint for steel pipes comprising a pin 1 and a box 2 each having a contact surface comprising a threaded portion 3 or 4 and an unthreaded metal contact portion 8 is provided with improved anti-galling propertied by formi... | 04/22/2008 |
| 7353871 | Downhole automatic tool release and method of use A release tool adapted to be connected between a perforating gun and a tubing for releasing the perforating gun from the tubing after detonation of the perforating gun, the tool including a housing in connection with the tubing, the housing having an axial bore; an ... | 04/08/2008 |
| 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 |
| 7350569 | Separable plug for use in a wellbore The invention generally relates to an apparatus and a method for conveying and operating tools in a wellbore. In one aspect, a method of performing an operation in a wellbore is provided. The method includes running a selectively separable plug member accommodating ... | 04/01/2008 |
| 7337519 | Method for producing a coiled tubing connector assembly A coiled tubing connector for connecting tools together when they are inserted into a well bore. The connector includes a disposable element that may be severed along with the connected portion of the coiled tubing. This provides for quick disconnect and reuse of th... | 03/04/2008 |
| 7337852 | Run-in and retrieval device for a downhole tool A run-in and retrieval device for a downhole tool comprises a first set of lugs disposed on a first component of the device connected to a tool string, and a second set of lugs disposed on a second component of the device connected to the downhole tool, wherein the ... | 03/04/2008 |
