| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 61 | EXPLODING BRIDGE WIRE DETONATION WAVE SHAPER | EP15818654 | 2015-07-10 | EP3167147A4 | 2018-02-28 | SOKOLOVE CHRISTOPHER BRIAN; PUNDOLE FARAIDOON |
| A jet cutter apparatus and method for using a single bridge wire or a plurality of bridge wires to uniformly detonate a booster and thereby cause a uniform detonation of the explosives adjacent to the liners, thereby causing a uniform compression of the liners to form a uniform plasma jet that is substantially radially perpendicular to the jet cutter. | ||||||
| 62 | MULTIFUNCTION WELLBORE TUBULAR PENETRATION TOOL | EP15792222 | 2015-01-28 | EP3143240A4 | 2018-01-03 | HANSEN HENNING; GUDMESTAD TARALD; SKJAERPE REID; USKEN SJUR |
| A wellbore intervention tool includes a housing and a means for locking the housing at a selected position inside a first wellbore pipe. The tool includes means for penetrating the first wellbore pipe extensible from the housing. The means for penetrating includes means for measuring an amount of extension thereof or an amount of force exerted thereby such that the means for penetrating is controllable to penetrate the first wellbore pipe without penetration of a second wellbore pipe in which the first wellbore pipe is nested. | ||||||
| 63 | METHODS OF REMOVING A WELLBORE ISOLATION DEVICE USING A EUTECTIC COMPOSITION | EP13804991.1 | 2013-02-24 | EP2825726B1 | 2017-11-15 | DAGENAIS, Pete; FRIPP, Michael, L.; HAMID, Syed |
| 64 | TOOL AND METHOD TO PLUG AND ABANDON A WELL | EP12741833 | 2012-02-03 | EP2670943A4 | 2017-08-09 | LERBREKK MORTEN; MELHUS GEIR ARNE |
| A tool (10) is described for the handling of wells through a formation, and which shall be taken out of operation with a device for a closing plug of a material that can be hardened, such as concrete, where there is a casing pipe in the well that is cemented against the wall in the bore hole with concrete, and it is characterised in that the tool comprises an assembled unit (10) from the following three sections; a perforating lance (32) comprising a number of explosive charges to form by detonation a row of holes in the pipe and out into the surrounding layer of concrete, a cleaning unit (34) for mechanical cleaning of the inner wall of the pipe in the perforated area and a flushing unit (36) to loosen, dissolve and flush away the hardened cement material between the outer wall of the pipe and the wall of the bore hole. Also described is a method to plug a well that shall be taken out of operation. | ||||||
| 65 | DECOMPOSING ISOLATION DEVICES CONTAINING A BUFFERING AGENT | EP14878117 | 2014-01-13 | EP3058166A4 | 2017-05-17 | FRIPP MICHAEL L; WALTON ZACHARY W; MURPHREE ZACHARY R |
| A wellbore isolation device includes a substance; and a pH maintainer, wherein the pH maintainer maintains the pH of a wellbore fluid surrounding the isolation device at a desired pH or range of pH values for a desired period of time, and wherein the substance is capable of decomposing at the desired pH or range of pH values. A method of removing the wellbore isolation device includes placing the isolation device into the wellbore; and causing or allowing at least a portion of the substance to decompose. | ||||||
| 66 | WELLBORE ACTIVATION SYSTEM | EP15726267.6 | 2015-05-27 | EP3149270A2 | 2017-04-05 | MAIR, Robin Barclay |
| A wellbore activation device and method of use in downhole operations are provided. The device comprises a deployment member packaged in a first configuration and arranged to be deployed from said first configuration upon deployment of the activation device within a wellbore, and an activation mechanism for activating the operation of a tool, the activation mechanism being operable upon the deployment or unwinding of a predetermined length of the deployment member. The wellbore activation device and method may initiate the operation of one or more downhole tools. | ||||||
| 67 | ANCHOR SYSTEM FOR IMPARTING A ROTATIONAL MOTION IN A CUTTING APPARATUS | EP15728731.9 | 2015-06-02 | EP3149266A1 | 2017-04-05 | ROBERTSON, Michael; STREIBICH, Douglas |
| Systems and methods usable in conduit cutting operations are disclosed. Specifically, an anchor assembly is configured to be attached to a cutting apparatus and to equalize the upward and downward forces on the cutting apparatus during performance of the cutting operation. In addition, the anchor assembly is configured to impart a rotational motion in the cutting apparatus to produce a clean and complete horizontal cut of the conduit at a desired location. | ||||||
| 68 | METHOD OF WELL OPERATION | EP16169642.2 | 2013-03-08 | EP3135857A1 | 2017-03-01 | SKJOLD, Michael |
Method and use of abandoning a well 2 or removing a well element which is arranged in a well by melting surrounding materials or by melting the well element, the method comprising the steps of; providing an amount of a heat generating mixture 6, the amount being adapted to perform one of the desired operations, positioning the heat generating mixture 6 at a melting position in the well 2, igniting the heat generating mixture, thereby melting the surrounding materials in the well or melting the well element.
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| 69 | WELL CASING/TUBING DISPOSAL | EP15714632.5 | 2015-04-02 | EP3126616A2 | 2017-02-08 | CARRAGHER, Paul |
| A method of clearing well casing (3) or tubing from a target region of an oil/gas well (1) borehole is provided. The clearance of the oil/gas well bore hole being achieved by employing chemical agents (9) that consume, weaken or melt the well casing/tubing. In some aspects of the method the well casing is cleared to expose the rock formation within which the well borehole is formed so that the rock formation can be accessed from within the well casing/tubing. In other aspects of the method the removal of inner tubing structures is used to facilitate the unimpaired deployment of repair tools down the well borehole. | ||||||
| 70 | Perforating torch apparatus and method | EP08157194.5 | 2008-05-29 | EP1998001A3 | 2017-01-11 | Robertson, Michael C. |
In cutting a downhole pipe in proximity to a closure in the pipe, the pipe is first perforated. A perforating torch is positioned with a pipe in proximity to the closure. The perforating torch produces cutting fluids in a first radial direction and produces an opening in the pipe, which cutting fluids produce a reaction force opposite to the first radial direction. This reaction force drives the perforating torch into contact with the pipe, anchoring it against any pressure wave produced by the cutting fluids and reflected off of the closure. Once the pipe is opened, a cutting torch is operated to sever the pipe. Any pressure wave generated by the cutting torch is vented through the opening.
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| 71 | IMPROVED TOOL | EP14815792.8 | 2014-11-18 | EP3094811A2 | 2016-11-23 | YOUNGER, Rae Andrew; MCKAY, Simon; OAG, James George |
| A severance tool for severing a target is described. The severance tool comprises a housing, a plurality of focused energetics, each focused energetic adapted to release energy in a preferred direction and a trigger mechanism adapted to detonate the focused energetics. The focused energetics are aligned such that, on impact with a target comprising a material, the energy released by one of said focused energetics cooperates with the energy released by another of said focused energetics to establish a separating force within the target material. | ||||||
| 72 | REDUCED MECHANICAL ENERGY WELL CONTROL SYSTEMS AND METHODS OF USE | EP13833557 | 2013-08-30 | EP2890859A4 | 2016-11-02 | WOLFE DANIEL L; BAILEY ANDYLE G; GRUBB DARYL L; KOLACHALAM SHARATH K; ZEDIKER MARK S; DEUTCH PAUL D |
| 73 | METHODS OF REMOVING A WELLBORE ISOLATION DEVICE USING A EUTECTIC COMPOSITION | EP13804991 | 2013-02-24 | EP2825726A4 | 2016-08-24 | DAGENAIS PETE; FRIPP MICHAEL L; HAMID SYED |
| 74 | SACRIFICIAL LINER LINKAGES FOR AUTO-SHORTENING AN INJECTION PIPE FOR UNDERGROUND COAL GASIFICATION | EP13810176 | 2013-06-21 | EP2867442A4 | 2016-06-15 | DAVIS BURL EDWARD; MALLETT CLIFFORD WILLIAM; MARK MARION RUSSELL |
| A sacrificial liner linkage that can be used to automatically shorten a liner for an underground coal gasification process is provided. The sacrificial liner linkage may be one or more sacrificial liner linkage portions that are spaced between one or more liner portions in which the sacrificial liner linkage portions disintegrate before the one or more liner portions to automatically shorten the liner. | ||||||
| 75 | WELLBORE TUBULAR CUTTER | EP11827539 | 2011-09-22 | EP2619411A4 | 2016-06-15 | WOOD JEFFREY D; LAGRANGE TIMOTHY EDWARD; CLAY MATTHEW |
| An apparatus and a method for cutting a wellbore tubular may include an upper section and a lower section mating at a juncture plane defined by a plane transverse to the longitudinal axis of the wellbore tubular. Each section may include a support plate having a passage, a liner positioned adjacent to the support plate, and an energetic material disposed between the support plate and the liner. An initiator having a shaft may be positioned in the passages of the upper section and the lower section. | ||||||
| 76 | A METHOD FOR SHORTENING AN INJECTION PIPE UNDERGROUND COAL GASIFICATION | EP13809020 | 2013-06-21 | EP2872737A4 | 2016-05-04 | DAVIS BURL EDWARD; O' LEARY KIERAN MAURICE |
| A method for automatically shortening an injection well liner for underground coal gasification is provided. | ||||||
| 77 | Cased hole chemical perforator | EP13183716.3 | 2013-09-10 | EP2706190A3 | 2016-02-24 | Daly, Kerry Gordon |
A device and method for use is provided to provide a port in a tubular without using explosives or a mechanical apparatus. By the utilization of the chemical cutter described herein the decision on the type of completion equipment to be implemented may be delayed or modified as the well creation progresses.
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| 78 | APPARATUS AND METHODS FOR OVERCOMING AN OBSTRUCTION IN A WELLBORE | EP14771091.7 | 2014-03-14 | EP2971463A2 | 2016-01-20 | ROBERTSON, Michael C.; BOELTE, William F.; STREIBICH, Douglas J. |
| Apparatus and methods for penetrating a downhole target within a wellbore include providing a body with a longitudinal axis, a first end, and a second end into a wellbore, the body having a nozzle at the first end. The nozzle is adapted to project a medium, such as molten thermite, in a direction generally parallel to the longitudinal axis, such as in a downhole direction. An initiation source is usable to consume a fuel load associated with the body to cause projection of the medium in a direction generally parallel to the axis of the wellbore, to affect an obstruction in the wellbore. A series of such apparatus can be used in succession, such that the actuation of each preceding apparatus enhances the effect of each subsequent apparatus on the obstruction. | ||||||
| 79 | SACRIFICIAL LINER LINKAGES FOR AUTO-SHORTENING AN INJECTION PIPE FOR UNDERGROUND COAL GASIFICATION | EP13810176.1 | 2013-06-21 | EP2867442A1 | 2015-05-06 | DAVIS, Burl, Edward; MALLETT, Clifford, William; MARK, Marion, Russell |
| A sacrificial liner linkage that can be used to automatically shorten a liner for an underground coal gasification process is provided. The sacrificial liner linkage may be one or more sacrificial liner linkage portions that are spaced between one or more liner portions in which the sacrificial liner linkage portions disintegrate before the one or more liner portions to automatically shorten the liner. | ||||||
| 80 | Wellbore laser operations | EP14180894.9 | 2010-06-29 | EP2816193A3 | 2015-04-15 | Schultz, Roger L.; East, Loyd E.; Walters, Harold Grayson; McDaniel, Billy Wilson; Soliman, Mohamed Y.; Skinner, Neal Gregory |
A method comprises:characterizing a subterranean formation; selecting an orientation or shape of an aperture based on characteristics of the subterranean formation; and using a laser to form an aperture of the selected orientation or shape in the wall of the wellbore; and in response to levels of particles in fluid being produced through the wellbore, operating the laser to change a flow distribution of the wellbore wherein operating the laser to change the flow distribution in the wellbore comprises sealing the aperture in the wellbore using the laser.
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