| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 261 | Electromagnetic telemetry assembly with protected antenna | US12812440 | 2009-01-09 | US08648733B2 | 2014-02-11 | Anthony R. Dopf; Derek W. Logan; Garry Holmen |
| Oilfield drilling utilizes downhole data transmitted to surface for formation evaluation and steering of directional wellbores. A leading technology in providing subsurface to surface communication is Electro-Magnetic (EM) Telemetry. This technology is typically employed with a downhole antenna concentric with the bore of an electrically insulating “gap sub” portion of the system. The antenna blocks the bore from further use to conduct other sensors or equipment through. One aspect of the invention is to integrate the antenna into the structure of the gap sub, thereby clearing the bore for conducting other tools through, and also protecting the antenna from the harsh drilling environment, including abrasion, erosion, shock, and vibration. Another aspect of this invention enables the antenna to serve a secondary function as an anti-rotation feature between the two halves of the gap sub. | ||||||
| 262 | Methods of forming coatings upon wellbore tools | US13204380 | 2011-08-05 | US08574667B2 | 2013-11-05 | Hendrik John; Erik Bartscherer; Andreas Krafczyk |
| A composition including a high temperature thermoplastic polymer and a filler material is disclosed. A method for forming a coating upon a wellbore tool includes forming a powder composition comprising a thermoplastic polymer and a filler material and applying the composition on the body surface. Wellbore tools having components coated with such compositions are also disclosed. | ||||||
| 263 | Downhole coils | US11860795 | 2007-09-25 | US08519865B2 | 2013-08-27 | David R. Hall; Craig Boswell |
| In one aspect of the invention, a downhole tool string component comprises a tubular body with at least one end adapted for threaded connection to an adjacent tool string component. The end comprises at least one shoulder adapted to abut an adjacent shoulder of an adjacent end of the adjacent tool string component. An annular magnetic coupler is disposed within an annular recess formed in the at least one shoulder, and the magnetic coupler comprises a coil in electrical communication with an electrical conductor that is in electrical communication with an electronic device secured to the tubular body. The coil comprises a plurality of windings of wire strands that are electrically isolated from one another and which are disposed in an annular trough of magnetic material secured within the annular recess. | ||||||
| 264 | MILLING WELL CASING USING ELECTROMAGNETIC PULSE | US13879319 | 2010-11-11 | US20130213639A1 | 2013-08-22 | Michael Bittar; Jing Li; Daniel Dorffer; Clive Menezes |
| An electromagnetic perforation device for well casings includes a coil disposed around a core carried by a mandrel. The device further includes a power supply coupled to a current supply device, which is coupled to said coil. A stabilizing member extends from the mandrel and spaced apart on the mandrel from the coil core. The electromagnetic perforation device may be positioned in a well casing, and the current supply device may rapidly supply a current to the coil to created an electromagnetic field in the coil and simultaneously induces a magnetic field in the well casing. The coil, current, and well casing may be selected such that electromagnetic field and the magnetic field produce repulsive magnetic forces that are sufficient to overcome a yield strength of the well casing and perforate the well casing. | ||||||
| 265 | PIPE AND PIPE ASSEMBLY PROVIDED WITH LAYERS OF ELECTRICALLY CONDUCTIVE MATERIAL FOR CONVEYING SUBSTANCES | US13822136 | 2011-10-03 | US20130186669A1 | 2013-07-25 | Jean-Alain Chabas; Brian Minnis |
| An ensemble including a pipe for transporting substances which can flow, the pipe having a structure forming a coaxial transmission line including: a first tubular layer of electrically conductive material; a second tubular layer of electrically conductive material; and at least one first layer of dielectric material mounted in-between the first and the second layers of electrically conductive material, such that: the first layer of electrically conductive material forms an outer conductor of a section of the coaxial transmission line; the second layer of electrically conductive material forms an inner conductor of the section of the coaxial transmission line, and further including an electromagnetic coupler coupling the coaxial transmission line with a complementary coaxial transmission line carried by a pipe complementary to the pipe. | ||||||
| 266 | RF APPLICATOR HAVING A BENDABLE TUBULAR DIELECTRIC COUPLER AND RELATED METHODS | US13349713 | 2012-01-13 | US20130180729A1 | 2013-07-18 | Brian Wright; Murray Hann; Raymond Hewit |
| A radio frequency (RF) applicator may be rotated during positioning within a wellbore in a subterranean formation. The wellbore may have at least one bend therein. The RF applicator may include a series of tubular conductors, and a respective bendable tubular dielectric coupler rotationally interlocking opposing ends of adjacent ones of the series of tubular conductors to define a tubular antenna. The RF applicator may include at least one RF feed conductor extending within the tubular antenna and connected to the series of tubular conductors. | ||||||
| 267 | Swellable packer having a cable conduit | US13337833 | 2011-12-27 | US08459367B2 | 2013-06-11 | Kim Nutley; Brian Nutley |
| An apparatus and assembly create a seal in a wellbore around a cable or line. The assembly includes a longitudinal body and a swellable portion which comprises a material selected to increase in volume on exposure to at least one triggering fluid. The swellable portion has a formation open to the longitudinal surface of the body which provides a pathway for a cable or line to extend through the swellable portion, and an insert of swellable material. The insert may partly or fully enclose or encapsulate the cable or line. a formation which is open to an outer longitudinal surface of the body. | ||||||
| 268 | FORMING A TUBULAR AROUND INSULATED CONDUCTORS AND/OR TUBULARS | US13644473 | 2012-10-04 | US20130086803A1 | 2013-04-11 | Justin Michael NOEL |
| A method of forming a tubular around one or more insulated conductors includes providing one or more insulated conductors and a strip of carbon steel to a tubular assembly location. The strip of carbon steel is formed into a tubular shape in the tubular assembly location. At least a portion of the insulated conductors are provided lengthwise inside the tubular shape as the strip of carbon steel is being formed into the tubular shape such that the tubular shape at least partially surrounds the one or more insulated conductors. The longitudinal edges of the strip of carbon steel together are welded to form a carbon steel tubular around the insulated conductors. | ||||||
| 269 | Connecting Head for Connecting A Cable and A Downhole Tool and Associated Intervention Device | US13517973 | 2010-12-22 | US20120318494A1 | 2012-12-20 | Christophe Michaud; Vincent Chatelet |
| The head (80) comprises an upper portion for attaching and connecting to a cable (32) and a lower attaching portion for electrically connecting to a control and transmission module (82) of a tool to be lowered in the well. The head (80) comprises a hollow outer enclosure (94) and a mechanical connection assembly. The mechanical connection assembly comprises an attaching member (114) and a liner (116) defining an inner lumen (121) to receive the attaching member (114) and the lower end of the cable (32) The connecting head (80) defines a first downhole electrical path (70) able to extend from a lower segment (126) of the cable to a first connector of the control and transmission module (82), the first downhole electrical path (70) being completely electrically insulated from the outer enclosure (94). | ||||||
| 270 | Wired slip joint | US12791830 | 2010-06-01 | US08322433B2 | 2012-12-04 | Sylvain Bedouet; Erik Quam |
| Embodiments of the invention disclose systems, apparatuses, and methods of measurement performed by pipe conveyed tools. In an embodiment, a system for evaluation of a well bore includes a drill string assembly comprising a plurality of pipe joints, a wired slip joint coupled to the plurality of drill pipe, the slip joint movable from a retracted position to an extended position to compensate for changes in length of the drill string, the extended position having a length greater than the retracted position; a sensor positioned in the slip joint, wherein the sensor detects a change in length of the slip joint and generates a signal representative of a position of the slip joint, and a communication system to transmit the signal from the slip joint to a surface processor. | ||||||
| 271 | Apparatus and Method for Controlling the Connection and Disconnection Speed of Downhole Connectors | US13405269 | 2012-02-25 | US20120181045A1 | 2012-07-19 | Phillip Terry Thomas; William Mark Richards; Bryon David Mullen |
| Apparatuses and methods for controlling the connection speed of downhole connectors in a subterranean well are disclosed. An apparatus includes a first assembly having a first downhole connector and a first communication medium that is positionable in the well. A second assembly includes a second downhole connector and a second communication medium and has an outer portion and an inner portion that are selectively axially shiftable relative to one another. A lock assembly including at least one lug initially couples the outer and inner portions of the second assembly together such that, upon engagement of the first assembly with the second assembly downhole, the lug is radially shifted releasing the lock assembly to allow axial shifting of the outer portion of the second assembly relative to the inner portion of the second assembly, thereby operatively connecting the first and second downhole connectors to enable communication between the communication media. | ||||||
| 272 | WIRED MUD MOTOR COMPONENTS, METHODS OF FABRICATING THE SAME, AND DOWNHOLE MOTORS INCORPORATING THE SAME | US12977278 | 2010-12-23 | US20120160473A1 | 2012-06-28 | Joachim Sihler |
| Exemplary embodiments provide systems and methods for minimizing erosion of a transmission cable extending through a downhole drilling assembly. The drilling assembly includes an elongated flow diverter having a plurality of apertures for diverting the drilling fluid from an axial flow through a transmission shaft to a radial flow through a drive shaft. Exemplary flow diverters are configured to minimize erosion of transmission cables that may be present adjacent to the flow diverters. | ||||||
| 273 | END TERMINATION FOR THREE-PHASE INSULATED CONDUCTORS | US13268246 | 2011-10-07 | US20120118634A1 | 2012-05-17 | John Matthew Coles; Francis Marion Stone, JR.; Patrick Silas Harmason; Charles D'Angelo, III; David Booth Burns |
| A fitting for coupling ends of cores of three insulated conductors includes an end termination placed over end portions of the three insulated conductors. The end termination includes three separate openings that pass through the end termination longitudinally. Each of the insulated conductors passes through one of the openings with end portions of the insulated conductors protruding from one side of the end termination. Exposed cores of the end portions of the insulated conductors protrude from the end termination. A cylinder is coupled to the side of the end termination from which the end portions of the insulated conductors protrude. An electrical bus is coupled to the exposed portion of the cores. Electrically insulating material fills the cylinder such that the cores are substantially enclosed in the electrically insulating material. An end cap is coupled to the cylinder to seal off the interior of the cylinder. | ||||||
| 274 | HYDROFORMED SPLICE FOR INSULATED CONDUCTORS | US13268226 | 2011-10-07 | US20120085564A1 | 2012-04-12 | Charles D'Angelo III; Ryan Michael Gonsoulin; David Jon Tilley |
| A method for coupling ends of two insulated conductors includes coupling an end portion of a core of a first insulated conductor to an end portion of a core of a second insulated conductor. At least a part of the end portions of the cores are at least partially exposed. Electrically insulating material is placed over the exposed portions of the cores. An inner sleeve is placed over end portions of the two insulated conductors to be coupled. An outer sleeve is placed over the inner sleeve. There is an open volume between the inner sleeve and the outer sleeve. The inner sleeve and the outer sleeve are coupled to jackets of the insulated conductors. A pressurized fluid is provided into the open volume between the inner sleeve and the outer sleeve to compress the inner sleeve into the electrically insulating material and compact the electrically insulating material. | ||||||
| 275 | System For Monitoring Linearity of Down-Hole Pumping Systems During Deployment and Related Methods | US13234667 | 2011-09-16 | US20120073804A1 | 2012-03-29 | Robert M. Harman; Brooks A. Childers; Philippe J. Legrand; Malcolm S. Laing; Roger G. Duncan; Suresha R. O'Bryan; Ketankumar K. Sheth; Earl B. Brookbank |
| Systems, program product, and methods for monitoring linearity of a down-hole pumping system assembly during deployment within a bore of a casing of a well positioned to extract hydrocarbons from a subterranean reservoir and selecting an optimal operational position for the down-hole pumping system assembly within the bore of the casing, are provided. Various embodiments of the systems allow an operator to ensure that a motor and pump of a down-hole pumping system assembly are installed in an optimal position in a well by ensuring alignment across the pump stages casing and motor casing. The alignment and linearity of the pump and motor can be crucial to run life of the pump and/or motor. | ||||||
| 276 | Method and system for using wireline configurable wellbore instruments with a wired pipe string | US12475845 | 2009-06-01 | US08136591B2 | 2012-03-20 | Christopher S. Del Campo; Harold S. Bissonnette; Reza Taherian |
| A wellbore instrument system includes a pipe string extending from earth's surface into a wellbore. The pipe string includes at least one of an electrical conductor and an optical fiber signal communication channel. A power sub is coupled to at least one wireline configurable wellbore instrument. The power sub is also coupled to the pipe string. The instrument is configured to receive electrical power from the power sub. The instrument includes at least one sensor responsive to at least one of movement of the instrument, change in a instrument operating condition and an environmental condition proximate the instrument. The sensor is configured to transmit signals therefrom over the communication channel. | ||||||
| 277 | Apparatus and Methods for Corrosion Protection of Downhole Tools | US13157979 | 2011-06-10 | US20110315444A1 | 2011-12-29 | Tu Tien Trinh; Eric Sullivan |
| In one aspect, an apparatus for use in a wellbore is provided that in one embodiment includes a drill bit having a bit body that is susceptible to corrosion when the drill bit is utilized in wellbore, an anode placed at a selected location on the bit body, a cathode associated with the bit body and a power source configured to provide electrical power to the anode to complete an electrical circuit between the anode and the bit body, wherein the supply of the electrical power to the anode arrests corrosion of the bit body when the drill bit is in the wellbore. | ||||||
| 278 | WELL ASSEMBLY COUPLING | US12789822 | 2010-05-28 | US20110290476A1 | 2011-12-01 | David Joe Steele; Srinivasa Prasanna Vemuri |
| Assemblies that can be disposed in a subterranean bore and that can facilitate branch wellbore creation are described. An assembly can include threadedly coupled components having inner and outer sealing members in grooves. The sealing member can cooperate with the components to provide a pressure seal. The assembly can also include a venting member for equalizing pressure in a chamber defined by the coupled components. One of the components can be made from aluminum. At least part of that component can be coated with a coating material that is nonconductive. | ||||||
| 279 | Wellbore communication system | US11440203 | 2006-05-24 | US07880640B2 | 2011-02-01 | John Lovell; Qingyan He; Frank Shray |
| A gap collar for an electromagnetic communication unit of a downhole tool positioned in a wellbore is provided. The downhole tool communicates with a surface unit via an electromagnetic field generated by the electromagnetic communication unit. The gap collar includes a first collar having a first end connector and a second collar having a second end connector matingly connectable to the first end connector. The gap collar further includes a non-conductive insulation coating disposed on the first and/or second end connectors, and a non-conductive insulation molding positioned about an inner and/or outer surface of the collars. The insulation molding moldingly conforms to the shape collars. The connectors are provided with mated threads modified to receive the insulation coating. Measurements taken by the downhole tool may be stored in memory, and transmitted to the surface unit via the electromagnetic field. | ||||||
| 280 | Electromagnetic wellbore telemetry system for tubular strings | US12555540 | 2009-09-08 | US07859426B2 | 2010-12-28 | Brian Clark; Nobuyoshi Niina |
| A coaxial transmission line for an electromagnetic wellbore telemetry system is disclosed. An inner conductive pipe is disposed inside an axial bore of the outer conductive pipe. An insulator is positioned between the outer conductive pipe and the inner conductive pipe. In a specific embodiment, the inner conductive pipe is perforated or slotted. | ||||||
QQ群二维码
意见反馈
意见反馈