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| Number | Title | Issue Date |
| 8181700 | System and method of displacing fluids in an annulus The method of displacing fluids in the annulus between pressurized casing strings inside an active oil or gas well by providing a controlled turndown insert and guides then inserting and retrieving a flexible hose without it folding or buckling while being pushed or... | 05/22/2012 |
| 8162045 | Stand compensator Methods and apparatus for connecting a tubular to a tubular string are provided. In one embodiment, an apparatus suitable for engaging, compensating, and connecting a tubular includes one or more compensating pistons, an engaging assembly for engaging a tubular, and... | 04/24/2012 |
| 8127836 | Top drive with an airlift thread compensator and a hollow cylinder rod providing minimum flexing of conduit A top drive for engagement with a travelling block with a hook can include an airlift thread compensator connected to a bail. An enclosure can be connected to the bail with an airbag disposed therein. A bail pin can be engaged through the enclosure, and can be conne... | 03/06/2012 |
| 8091629 | Adjustable wireline sheave for stuffing box A stuffing box assembly for a wellhead intervention has a stuffing box and an adjustable sheave. The stuffing box has a body with a collar for connecting to a wellhead and with a passage for running wireline therethrough. A frame connected to the body has side plate... | 01/10/2012 |
| 7984757 | Drilling rig with a top drive with an air lift thread compensator and a hollow cylinder rod providing minimum flexing of conduit A drilling rig with a top drive for engagement with a travelling block with a hook comprising an airlift thread compensator with an airlift box connected to a bail. The airlift box can have an airbag disposed therein. A bail pin can be engaged through the airlift bo... | 07/26/2011 |
| 7874351 | Devices and systems for measurement of position of drilling related equipment A depth measurement system for determining an absolute depth of a drill string uses a position acquisition device to determine a length value for a joint or stand being added to the drill string. The position acquisition device receives a signal from a target object... | 01/25/2011 |
| 7748445 | Top drive with shaft seal isolation A top drive system for wellbore drilling operations, the top drive system including a main shaft having an upper shaft seal system with a raised platform for supporting the seal system. The top drive may also have a shroud for covering the seal(s), and contaminants ... | 07/06/2010 |
| 7743822 | Snubber spool with detachable base plates A snubber spool with detachable base plates includes a base flange with a plurality of spaced-apart load pins received in through bores in the base plates. Tie plates with bores for receiving top ends of the load pins are mounted over the base plates in an offset or... | 06/29/2010 |
| 7721798 | Wireline entry sub A wireline entry sub includes a body for connection with a wellbore string of tubulars. An opening on the body extends a depth from a body outer surface to at least the longitudinal center axis. A wireline passage extends though the body from the opening to a lower ... | 05/25/2010 |
| 7681631 | Automatic false rotary A method and apparatus for remotely performing a pipe handling operation is provided. In one aspect, the method and apparatus includes a false rotary table capable of supporting one or more tubulars during the pipe handling operation which is moveable between a posi... | 03/23/2010 |
| 7681632 | Integrated top drive and coiled tubing injector An apparatus for conducting earth borehole operations, comprising a base, a mast mounted on the base, and an integrated unit comprising a top drive and a coil tubing injector carried by the mast for longitudinal movement therealong. The top drive has an opening ther... | 03/23/2010 |
| 7419008 | Power slip A power slip that utilizes modified SDXL slips and regular drilling bowls that fits to the pin drive master bushings of the rotary table and utilizes the depth of the drive pin holes as part of the actuators, thus allowing the power slip to set lower for added clear... | 09/02/2008 |
| 7419012 | Wellbore top drive systems A drive system for wellbore operations, the drive system, in certain, but not necessarily all aspects, including a main body, a motor apparatus, a main shaft extending from the main body and rotatable by the motor, the main shaft having a top end and a bottom end, a... | 09/02/2008 |
| 7416028 | Telemetry system for the bi-directional communication of data between a well point and a terminal unit situated on the surface A telemetry system for bi-directional communication of data between a well point and a terminal unit situated on a surface, which can be used inside drilling or production strings. The system includes data transmission and optional reception devices. An active vehic... | 08/26/2008 |
| 7404443 | Compensation system for a jacking frame An offshore oil well platform assembly is provided that includes a jacking frame, which supports a coiled tubing injector, which in turn is connected to a wellhead during a coiled tubing operation; and a compensation system. The compensation system includes a force ... | 07/29/2008 |
| 7401641 | Vertically oriented direct exchange/geothermal heating/cooling system sub-surface tubing installation means A system for installing sub-surface fluid transport tubing and pressure testing coupling seals in a vertically oriented geothermal heating/cooling system installation, and particularly in a direct exchange system installation, includes providing an elevated containm... | 07/22/2008 |
| 7377316 | Side entry apparatus and method An apparatus for lowering wireline into a well. The apparatus comprises a sleeve having a first and second end, wherein the first end contains a first plurality of wedges and the second end contains a second plurality of wedges. The apparatus further includes an upp... | 05/27/2008 |
| 7370707 | Method and apparatus for handling wellbore tubulars Aspects of the present invention provide a tubular handling system for handling wellbore tubulars. In one aspect, the present invention provides a tubular handling system adapted to retain a tubular without damaging the outer surface of the tubular. In another aspec... | 05/13/2008 |
| 7367403 | Top feed of control lines to table-elevated spider A method and apparatus are provided for installing control lines and pipe into a well. The pipe-holding spider that is normally mounted on the rig floor is supported by a table elevated above the rig floor. Supporting the spider on an elevated table provides personn... | 05/06/2008 |
| 7363968 | Umbilical reel safety release The method of preventing over tension to an umbilical wrapped on the spool of an offshore reel when the umbilical is unexpectedly pulled from the spool on the reel, comprising providing a main disk, mounting the main disk on the spool of the reel with a slip connect... | 04/29/2008 |
| 7360589 | Articulating bail assembly and method An apparatus for performing well intervention work on a rig. The apparatus comprises a first spreader that is operatively connected to a derrick, a pair of I-beams that have a distal end and a proximal end, and wherein the distal end of the pair of I-beams are conne... | 04/22/2008 |
| 7350586 | Casing running tool and method of using same An automated tubular running tool for use in drilling systems and the like allows for the picking up, positioning, stabbing and threadedly connecting a tubular segment to a tubular string being held by the rig by a spider. The tool comprises a pivoting arm, which ca... | 04/01/2008 |
| 7348892 | Pipe mounted telemetry receiver Methods and apparatus for receiving a telemetry signal with a receiver that is moveably disposed within a drillstring. In certain embodiments, the system comprises a surface module coupled to the upper end of a drillstring, an upper module detachably connected to th... | 03/25/2008 |
| 7341101 | Enclosed radial wire-line cable conveying method and apparatus A relatively light weight 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 capable o... | 03/11/2008 |
| 7331384 | Stabberless 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 |
| 7322421 | Fiber optic deployment apparatus and method A head member having a piston provided thereon is connected to an elongate tube such as a micro-tube. The micro-tube contains one or more optical fibres, preferably suspended therein by a protective fluid such as a scavenging gel. The head member is preferably inser... | 01/29/2008 |
| 7320365 | Methods for increasing production from a wellbore The present invention generally relates to a method for recovering productivity of an existing well. First, an assembly is inserted into a wellbore, the assembly includes a tubular member for transporting drilling fluid downhole and an under-reamer disposed at the e... | 01/22/2008 |
| 7316269 | Enclosed 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 |
| 7316276 | Side entry apparatus and method An apparatus and method for transferring torque on a rig. The apparatus comprises a central body having a central passage, and a first plurality of splines formed within the central passage and a second plurality of splines formed on a bottom sub, and wherein the fi... | 01/08/2008 |
| 7301474 | Wireless communication system and method A wireless communication system for use in well, subsea, and oilfield-related environments employs one or more wireless network devices that offer short-range wireless communication between devices without the need for a central network which may have a device using... | 11/27/2007 |
| 7296632 | Casing alignment tool An alignment apparatus for use with the assembly of tubular segments with a tubular string in a well bore is disclosed. The alignment apparatus includes an actuator assembly functionally associated with an engagement assembly. Upon actuation of the actuator assembly... | 11/20/2007 |
| 7278490 | Blast joint swivel for wellhead isolation tool and method of using same A blast joint swivel for use in a wellhead isolation tool includes a blast joint hanger mounted to a top of the wellhead isolation tool and a swivel body rotatably received in the blast joint hanger. The swivel body threadedly connects to a blast joint, which in tur... | 10/09/2007 |
| 7270189 | Top drive assembly A top drive assembly for wellsite operations may include a quill, a swivel including a swivel housing and a swivel bearing therein in which the quill is supported, a drive system for applying torque to the quill, and link arm hangers extending from the swivel housin... | 09/18/2007 |
| 7264060 | Side entry sub hydraulic wireline cutter and method A side entry sub for use with a drill string, where the side entry sub receives a wireline within its inner diameter. The present invention includes a device capable of severing the wireline proximate to the side entry sub. The present invention can further include ... | 09/04/2007 |
| 7261152 | Cable drawn snubbing apparatus A cable drawn snubbing apparatus includes a first track and a second track in parallel spaced relation. A carriage extends between and engages the first track and the second track. Pipe engaging slips are carried by the carriage. Upper cables extend from the carriag... | 08/28/2007 |
| 7249637 | Method and device to clamp control lines to tubulars The inventions relates to an apparatus for connecting a control line to a tubular string. In one embodiment, the apparatus includes a guide boom pivotable around a location adjacent the string and with a guide member at an end thereof to guide the control line. The ... | 07/31/2007 |
| 7249629 | Multi-function well servicing vehicle A mobile vehicle for inserting jointed pipe into a well, having a derrick and hydraulic rams to raise and lower same, adapted to conduct additional operations which will allow a well to be completed by this vehicle alone. Three winches are provided, a first to raise... | 07/31/2007 |
| 7228899 | Warning device and method to prevent clutch burning This invention is generally directed towards a system designed to assist the rig operator by alerting him/her that the air pressure is too low to be using the drum clutch, to provide a log for studies on rig operation technique, and to provide a training tool for ri... | 06/12/2007 |
| 7222677 | Control line guide and method of using same A control line guide and manipulating arm can protect and guide one or more control lines which are desired to be attached and lowered into a wellbore with a tubular string. The control lines may be moved toward a tubular string, can be clamped to the tubular string... | 05/29/2007 |
| 7213649 | Geothermal pipe weight A method and apparatus for adding rigidity and weight to the piping used in geothermal wells for ground-source heat pumps enhances insertion of the piping into the wells. The weight used must be approved by appropriate organizations such as the DNR, NSF, and/or EPA,... | 05/08/2007 |
