| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 141 | MULTILATERAL SYSTEM WITH RAPIDTRIP INTERVENTION SLEEVE AND TECHNIQUE FOR USE IN A WELL | US13497311 | 2009-09-21 | US20120318582A1 | 2012-12-20 | Jeremie C. Fould; Timothy M. O'Rourke |
| A method for constructing a multilateral well includes drilling a main well, drilling a first lateral well from the main well, installing a production reentry deflection tool in the main well, proximate the first lateral, the first production reentry deflection tool having a first inner diameter, drilling a second lateral well from the main well and above the first lateral well, and installing a second production reentry deflection tool in the main well, proximate the second lateral, the second production reentry deflection tool having a second inner diameter. The first inner diameter is smaller than the second inner diameter. | ||||||
| 142 | Self-contained system for drilling a drainhole | US12251996 | 2008-10-15 | US08327952B2 | 2012-12-11 | Christophe Amadei; Emmanuel Derbez |
| A self-contained system for drilling a drainhole laterally to a wellbore that includes a drill head with a tool for boring a drainhole and a self-propelled device for advancing the head into the drainhole during boring; a relay unit lowered into the wellbore, arranged to position the drill head against the sidewall of the wellbore in order to initiate the boring of the drainhole laterally to the wellbore; a cable for supplying electric power to the drill head, reeled out from the relay unit; and a mechanical system for removing cuttings from the drainhole during boring, the debris removed falling downhole. | ||||||
| 143 | Multi-window lateral well locator/reentry apparatus and method | US12796965 | 2010-06-09 | US08316937B2 | 2012-11-27 | Gerald J. Cronley; Timothy T. Torrez |
| A down-hole assembly used to locate an existing window in a main cased well bore and guide equipment through the window and into a lateral well bore after removal of a whip stock. The down-hole assembly includes a running tool with a convex section detachably connected to a concave section of a guide member. The running tool includes a window locator that locates the window. The window locator may contain a selectively reciprocating shear rod operatively associated with a stop/shear block to enable the window locator to locate a plurality of lateral well windows in a main well bore. The guide member includes an inclined or wedge shaped portion for guiding tools or equipment through the window and into the lateral well bore so that remedial work can be carried out. | ||||||
| 144 | System and method for drilling multilateral wells using magnetic ranging while drilling | US12100511 | 2008-04-10 | US08307915B2 | 2012-11-13 | Brian Clark; Jan S. Morley |
| Systems and methods for drilling a multilateral well using magnetic ranging while drilling are provided. In accordance with one embodiment, a method of drilling a multilateral well includes drilling and casing a mother wellbore, installing a multilateral junction, drilling and casing a first lateral well from the multilateral junction, and drilling a second lateral well from the multilateral junction using magnetic ranging while drilling such that the second lateral well has a controlled relationship relative to the first lateral well. The first and second lateral wells may form a SAGD well pair, in which case the first lateral well may be a producer well and the second lateral well may be an injector well. | ||||||
| 145 | MULTI-STAGE VALVE ACTUATOR | US13398117 | 2012-02-16 | US20120211242A1 | 2012-08-23 | Dinesh R. Patel |
| An actuator assembly for effective interventionless activation of a valve in wells of multilateral architecture. The assembly may be pressure actuated from an oilfield surface even in certain circumstances where another valve in another leg of the well has been opened in a manner compromising pressure control of the well. Due to the multi-stage nature of the actuator, pressure based activation remains viable as a result of supplemental and/or fail-safe modes of actuation, for example, where such pressure control becomes compromised. | ||||||
| 146 | Method and apparatus for multilateral multistage stimulation of a well | US12685513 | 2010-01-11 | US08220547B2 | 2012-07-17 | Skeates Craig; Gary E. Gill; Abbas Mahdi |
| A method enables stimulation of a well having a plurality of lateral wellbores. The method comprises deploying fracturing equipment downhole for isolated interaction with each lateral wellbore of the plurality of lateral wellbores. The method and the fracturing equipment are designed to enable fracturing of the plurality of lateral wellbores during a single mobilization. | ||||||
| 147 | Drilling and completion deflector and method of using | US13207499 | 2011-08-11 | US08210270B2 | 2012-07-03 | William Shaun Renshaw; Rob McCullough |
| A tool assembly is provided. The tool assembly comprises a drilling deflector and a completion deflector, the completion deflector coupled to the drilling deflector. | ||||||
| 148 | LIFT-GAS OPTIMIZATION WITH CHOKE CONTROL | US13253680 | 2011-10-05 | US20120095603A1 | 2012-04-19 | Kashif RASHID; Suleyman DEMIREL; Benoit COUET |
| A method of optimizing production of wells using choke control includes generating, for each well, an intermediate solution to optimize the production of each well. The generating includes using an offline model that includes a mixed-integer nonlinear program solver and includes using production curves based on a choke state and a given wellhead pressure. The method further includes calculating, using a network model and the intermediate solution of each well, a current online wellhead pressure for each well. The method further includes setting the intermediate solution as a final solution based on determining that a difference between the current online wellhead pressure of each well and a prior online wellhead pressure of each well is less than a tolerance amount. The method further includes adjusting, using the final solution of each well, at least one operating parameter of the wells. | ||||||
| 149 | System and method for lateral wellbore entry, debris removal, and wellbore cleaning | US12639244 | 2009-12-16 | US08061426B2 | 2011-11-22 | Jim B. Surjaatmadja |
| A method of servicing a wellbore comprises running a toolstring into a wellbore to a first depth, actuating a controllably rotating sub-assembly of the toolstring to rotate, and activating a pressure activated bendable sub-assembly of the toolstring to bend, wherein actuating the controllably rotating sub-assembly to rotate and activating the pressure activate bendable sub-assembly are performed in any sequence or concurrently. The method also comprises running the toolstring into the wellbore beyond the first depth and stabbing the toolstring into a window in a wall of the wellbore to enter a lateral wellbore, wherein no whipstock is used to facilitate stabbing into the window. The method further includes running the toolstring into the lateral wellbore and performing a wellbore servicing operation in the lateral wellbore. | ||||||
| 150 | Downhole window finder system | US12208185 | 2008-09-10 | US07980307B2 | 2011-07-19 | James E. Saylor, III |
| An apparatus for finding a pre-existing downhole window includes a body having a deflector ramp and a cavity, and an extendable dog disposed in the cavity, the dog mechanically moveable between a retracted position and an extended position into the pre-existing window. In some embodiments, the apparatus includes an axially moveable sleeve disposed adjacent the extendable dog. A downhole window finding apparatus includes a deflector including a window finding assembly, and a running tool removably coupled to the deflector, wherein the window finding assembly includes an extendable member and an axially moveable sleeve retaining the extendable member. In certain embodiments, a fluid flow path extends through the running tool and the deflector to the window finding assembly. In some embodiments, a shear bolt removably couples the running tool to the deflector and includes a fluid passage fluidicly coupling a flow line in the running tool to a flow line in the deflector. A method of finding a pre-existing downhole window is also disclosed. | ||||||
| 151 | ACTIVE INTEGRATED WELL COMPLETION METHOD AND SYSTEM | US12987790 | 2011-01-10 | US20110100620A1 | 2011-05-05 | Dinesh R. Patel |
| A well system may be provided comprising a first primary inductive coupler configured to be communicably coupled to a surface device and a first secondary inductive coupler. The first secondary inductive coupler may be further configured to be communicably coupled to one or more completion components provided in a first portion of the well. In addition, the well system may comprise a second primary inductive coupler configured to be communicably coupled to the surface device and a second secondary induction coupler. The second secondary inductive coupler may be further configured to be communicably coupled to one or more completion components provided in a second portion of the well. The flow through at least one of the first and second portions of the well may be adjusted via at least one of the one or more completion components. A method for completing a well comprising inductive couplers may also be provided. | ||||||
| 152 | WELL CONSTRUCTION USING SMALL LATERALS | US12674575 | 2007-08-23 | US20110061937A1 | 2011-03-17 | Jacques Orban; Claude Vercaemer; Sami Iskander |
| This invention relates to the construction of well such as oil and gas wells using techniques based on drilling small lateral wells from a main well. The problem of narrow pressure window is solved by the use of constructions techniques that are based on the use of lateral boreholes, i.e. secondary boreholes that are drilled a main borehole, wherein a method of constructing a well comprises drilling a main borehole extending from the surface through one or more underground formations, drilling a plurality of lateral boreholes extending from the main borehole into surrounding formations, wherein the lateral boreholes are substantially shorter and of smaller diameter than the main borehole; and wherein each lateral borehole is separated from its neighbouring lateral boreholes by a relatively short distance. Drilling of the lateral boreholes can be for to extend 5-60 metres from the main borehole with a diameter in the range 3.8-10 cm by the lateral boreholes at an axial spacing of less than a few metres in the main borehole. Drilling of more than one lateral borehole can be done at the same depth in the main borehole with a trajectory that deviates from the main borehole by less than 10° or with trajectories that extend in a plane that does not contain the main borehole. | ||||||
| 153 | LOW COST RIGLESS INTERVENTION AND PRODUCTION SYSTEM | US12824028 | 2010-06-25 | US20100314106A1 | 2010-12-16 | Paulo Tubel |
| A downhole system comprises (a) a wellbore deployable container comprising an operational control circuit and a power source operationally in communication with the operational control circuit, each disposed within the container; a wellbore deployable, controllable downhole electronic frac fluid flow control module further comprising a wellbore deployable container receiving seat; and a data handling circuit; (b) a wellbore deployable, data transmission capable gauge deployable near the control module; and (c) a surface system operatively in communication with the operational control circuit and/or the control module. The control module, container, and data gathering gauge may be deployed within the wellbore; the surface system deployed at the wellbore's surface; communications established between the gauge, surface system, and operational circuit; and a data transmission command issued from the surface system to the container to trigger transmitting data from the container to the surface system to control a wellbore fluid process. | ||||||
| 154 | CONTAMINANT EXCLUDING JUNCTION AND METHOD | US12481329 | 2009-06-09 | US20100307770A1 | 2010-12-09 | BARTON F. SPONCHIA; AMY L. FARRAR; AUBREY C. MILLS; DOUGLAS J. MURRAY; JOHN J. JOHNSON; JAMES L. MCGOWIN |
| A junction selective contaminant exclusion tool includes a tubular positionable within the junction and having an opening through a wall thereof, a material disposed on an outside surface of the tubular, the material being capable of increasing a radial dimension between a surface of the material in contact with the tubular and an opposite surface of the material upon exposure to a selected species. A method for excluding selected contaminants from a wellbore junction is also disclosed. The method includes: disposing a junction at a wellbore casing window; disposing a tubular member having at least one opening through a wall thereof at the junction, the tubular member including an exclusion material thereon capable of existing in a first configuration and a second configuration, the second configuration obtainable upon exposure to a selected species; and exposing the material to the selected species. | ||||||
| 155 | METHODS FOR CUTTINGS FOR A WIRELINE DRILLING TOOL | US12742477 | 2008-11-14 | US20100294569A1 | 2010-11-25 | Walter Aldred; Iain Cooper; Paul Hammond |
| A method of removing cuttings from a workfront of a lateral borehole hole being drilled from a main borehole by a drilling tool is provided. The drilling tool comprising a tool body including a motor, an axial drive mechanism for advancing the tool body in the well, and a drill bit powered by the motor for drilling the underground formation at the workface and producing cuttings as the tool is advanced. The drilling tool is preferably connected to the surface by means of a cable extending through the lateral borehole and main borehole. The method independently comprising transporting the drilled cuttings from the workface to the part of the lateral borehole immediately behind the drilling tool. Transporting the drilled cuttings from immediately behind the drilling tool to the junction of the lateral borehole and the main well. And transporting the cuttings from the junction to a place of disposal. | ||||||
| 156 | SENSOR DEPLOYMENT | US12744339 | 2008-11-19 | US20100294480A1 | 2010-11-25 | Eric Lavrut; Charles Woodburn |
| Apparatus and the methods for deploying a sensor in the formation down a borehole. The apparatus comprises a downhole drilling system which is connected at a first end to the surface and is connected at a second end to a flexible drilling string downhole in the borehole. At least a portion of the flexible drilling string is locatable in a lateral hole of the borehole, and at least one downhole sensor is connectable to the portion of the drilling string that is locatable in the lateral hole. | ||||||
| 157 | Lateral Well Locator and Reentry Apparatus and Method | US12417170 | 2009-04-02 | US20100252275A1 | 2010-10-07 | Gerald J. Cronley; Timothy T. Torrez |
| A down-hole assembly used to locate an existing window in a main cased well bore and guide equipment through the window and into a lateral well bore after removal of a whip stock. The assembly includes a running tool with a convex section detachably connected to a concave section of a guide member. The running tool includes a window locator that locates the window. The guide member includes an inclined or wedge shaped portion for guiding tools or equipment through the window and into the lateral well bore so that remedial work can be carried out. | ||||||
| 158 | Backpressure valve for wireless communication | US12135682 | 2008-06-09 | US07793732B2 | 2010-09-14 | Zheng Rong Xu; Gokturk Tunc |
| A backpressure valve. The backpressure valve may be configured to maintain a substantially controlled pressure in coiled tubing uphole thereof while simultaneously being compatible with a pressure pulse tool downhole thereof. The backpressure valve includes pressure generating capacity below its internal valve assembly so as to avoid the tendency of the assembly to throttle open and closed. Furthermore, the pressure generation is achieved in a manner avoiding cavitation. As a result, once the backpressure valve is opened, the pressure pulse tool is able to reliably communicate with surface equipment at the oilfield. | ||||||
| 159 | MULTIPLE PRODUCTION STRING APPARATUS | US12650191 | 2009-12-30 | US20100170677A1 | 2010-07-08 | Derek Ingraham |
| A production tubing assembly for accessing multiple boreholes includes an outer shroud having an axial throughbore, a deflector disposed in the axial throughbore and releasably coupled to the outer shroud, and at least two tubular members releasably coupled to the deflector by extendable latch assemblies, wherein the deflector with the coupled tubular members is extendable from within the outer shroud to a position beyond the outer shroud, wherein, in the extended position, the latch assemblies extend to release the tubular members and latch the deflector to the outer shroud. | ||||||
| 160 | Method and apparatus for wellbore fluid treatment | US12208463 | 2008-09-11 | US07748460B2 | 2010-07-06 | Daniel Jon Themig; Jim Fehr |
| 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 tubing string inner bore. | ||||||
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