| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 221 | EXPLOSIVE SEVER SEAL MECHANISM | US14193442 | 2014-02-28 | US20150247370A1 | 2015-09-03 | Timothy Andrzejak |
| A technique facilitates severing and sealing of a tubing, such as a tubing string located in a wellbore. The tubing is combined with a mechanism constructed to sever and seal the tubing. The mechanism comprises an internal explosive charge and an external explosive charge mounted inside and outside the tubing, respectively. The internal explosive charge is of sufficient size to sever the tubing upon detonation. Additionally, the external explosive charge is sized and oriented to collapse and seal at least one of the severed ends of the tubing once those severed ends are formed via detonation of the internal explosive charge. | ||||||
| 222 | Shaped Charge Tubing Cutter | US14703662 | 2015-05-04 | US20150233219A1 | 2015-08-20 | William T. Bell; James G. Rairigh |
| A shaped charge pipe cutter is constructed with the cutter explosive material packed intimately around an axially elongated void space that is continued through a heavy wall boss portion of the upper thrust disc. The boss wall is continued to within a critical initiation distance of a half-cuter junction plane. An explosive detonator is positioned along the void space axis proximate of the outer plane of the upper thrust disc. Geometric configurations of the charge thrust disc and end-plate concentrate the detonation energy at the critical initiation zone. | ||||||
| 223 | Apparatus and methods utilizing nonexplosive energetic materials for downhole applications | US13252809 | 2011-10-04 | US09045956B2 | 2015-06-02 | Gerald D. Lynde; Yang Xu; Bennett M. Richard; Douglas J. Murray; Edward J. O'Malley |
| In one aspect, a method of method of performing a wellbore operation is disclosed that in one embodiment may include: providing a device that includes a non-explosive energetic material configured to disintegrate when subjected to a selected energy; placing the device at a selected location in the wellbore to perform a selected function; and subjecting the device to the selected energy to disintegrate the device in the wellbore after the device has performed the selected function. In another aspect an apparatus for use in a wellbore is disclosed that in one embodiment may include a device placed in the wellbore at a selected location, wherein the device includes a non-explosive energetic material configured to disintegrate when subjected to a selected energy, and a source of the selected energy configured to subject the device to the selected energy in the wellbore to disintegrate the device. | ||||||
| 224 | Shaped charge casing cutter | US14120528 | 2014-05-29 | US09038713B1 | 2015-05-26 | William T. Bell; James G. Rairigh |
| A shaped charge casing cutter is constructed with the cutter explosive formed into radial section modules aligned in a toroidal cavity between a pair of housing plates. The center sections of the plates are contiguously aligned with opposite parallel surfaces of a center disc. The plate rims are offset from respective center disc planes in opposite directions from each other to form a toroidal cavity. The toroidal cavity is enclosed by a circumferential belt secured to said plate rims. V-grooved shaped charge explosive in the form of multiple pi sections is distributed about the cavity to intimately contact a pair of frusto-conical liners. | ||||||
| 225 | Shaped charge tubing cutter | US13506691 | 2012-05-10 | US09022116B2 | 2015-05-05 | William T. Bell; James G. Rairigh |
| A shaped charge pipe cutter is constructed with the cutter explosive material packed intimately around an axially elongated void space that is continued through a heavy wall boss portion of the upper thrust disc. The boss wall is continued to within a critical initiation distance of a half-cuter junction plane. An explosive detonator is positioned along the void space axis proximate of the outer plane of the upper thrust disc. Geometric configurations of the charge thrust disc and end-plate concentrate the detonation energy at the critical initiation zone. | ||||||
| 226 | Agents for enhanced degradation of controlled electrolytic material | US13294246 | 2011-11-11 | US08967275B2 | 2015-03-03 | James B. Crews |
| A method for degrading a downhole article includes exposing the downhole article comprising a controlled electrolytic material to a composition that comprises a reducing agent. The method also includes contacting the downhole article with the reducing agent to degrade the downhole article. Additionally, a composition for degrading a downhole article includes water, chelant, metal ions, and a reducing agent that includes ascorbic acid, erythorbic acid, a derivative thereof, a salt thereof, or a combination thereof. | ||||||
| 227 | METHOD OF WELL OPERATION | US14384938 | 2013-03-08 | US20150034317A1 | 2015-02-05 | Michael Skjold |
| Method and use of abandoning a well (2) or removing a well element (10) which is arranged in a well (2) by melting surrounding materials or by melting the well element (10), the method comprising the steps of; providing an amount of a heat generating mixture (6), the amount (6) 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 (6), thereby melting the surrounding materials in the well (2) or melting the well element (10). | ||||||
| 228 | AGENTS FOR ENHANCED DEGRADATION OF CONTROLLED ELECTROLYTIC MATERIAL | US14468950 | 2014-08-26 | US20140367117A1 | 2014-12-18 | James B. Crews |
| A method for degrading a downhole article includes exposing the downhole article comprising a controlled electrolytic material to a composition that comprises a reducing agent. The method also includes contacting the downhole article with the reducing agent to degrade the downhole article. Additionally, a composition for degrading a downhole article includes water, chelant, metal ions, and a reducing agent that includes ascorbic acid, erythorbic acid, a derivative thereof, a salt thereof, or a combination thereof. | ||||||
| 229 | ELECTRONIC RUPTURE DISCS FOR INTERVENTIONLESS BARRIER PLUG | US13896512 | 2013-05-17 | US20140338923A1 | 2014-11-20 | Michael Linley Fripp; Donald G. Kyle; Jeff Huggins |
| Methods and apparatus are presented for removing a degradable barrier plug positioned in a downhole axial passageway. The degradable plug is initially isolated from fluid by at least one solid, non-degradable cover. A first electronic rupture disc assembly is actuated to open a passageway to the degradable plug. A second electronic rupture disc assembly is actuated to allow a fluid, such as water from a supply chamber, to flow into contact with the plug. The plug is substantially degraded, although the cover remains. A third electronic rupture disc assembly is actuated to bend and then cover the remaining solid cover, thereby opening the axial passageway and protecting later-introduced tools. | ||||||
| 230 | Drill collar severing tool | US14120409 | 2014-05-19 | US20140338910A1 | 2014-11-20 | William T. Bell; James G. Rairigh |
| A pipe severing tool is arranged to align a plurality of high explosive pellets along a unitizing central tube that is selectively separable from a tubular external housing. The pellets are loaded serially in a column in full view along the entire column as a final charging task. Detonation boosters are pre-positioned and connected to detonation cord for simultaneous detonation at opposite ends of the explosive column. Devoid of high explosive pellets during transport, the assembly may be transported with all boosters and detonation cord connected. | ||||||
| 231 | Selectively fired high pressure high temperature back-off tool | US13276093 | 2011-10-18 | US08851191B2 | 2014-10-07 | Nauman H. Mhaskar; William B. Harvey |
| A method for unseating a threaded connection of wellbore tubing within the wellbore. The method utilizes a back-off tool which consists of a tubular metal housing, a shaped charge and HNS detonating cord within the housing, and an explosive material attached to the housing. The back-off tool is detonated near the threaded connection, creating a shockwave that strikes the threaded connection with sufficient force to unseat the connection. | ||||||
| 232 | Apparatus and methods for overcoming an obstruction in a wellbore | US13815694 | 2013-03-14 | US20140262328A1 | 2014-09-18 | Michael C. Robertson; William F. Boelte; Douglas J. Streibich |
| 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. | ||||||
| 233 | DISSOLVABLE MATERIAL APPLICATION IN PERFORATING | US14174528 | 2014-02-06 | US20140151046A1 | 2014-06-05 | Manuel P. Marya; Wenbo Yang; Lawrence A. Behrmann; Steven W. Henderson; Robert Ference |
| A shaped charge includes a charge case; a liner; an explosive retained between the charge case and the liner; and a primer core disposed in a hole in the charge case and in contact with the explosive, wherein at least one of the case, the liner, the primer core, and the explosive comprising a material soluble in a selected fluid. A perforation system includes a perforation gun, comprising a gun housing that includes a safety valve or a firing valve, wherein the safety valve or the firing valve comprises a material soluble in a selected fluid. | ||||||
| 234 | SYSTEM AND METHOD FOR SAFELY CONDUCTING EXPLOSIVE OPERATIONS IN A FORMATION | US13981530 | 2012-09-13 | US20140138090A1 | 2014-05-22 | Jim T. Hill; Clinton C. Quattlebaum; John D. Burleson; Tony F. Grattan |
| Method and system that permits explosive operations to be conducted concurrently with drilling and other wellsite operations involving an electrical top drive mechanism or other components that utilize electricity are disclosed. A platform is placed at a location where subterranean operations are to be performed. A first well bore is drilled in a formation using drilling equipment on the platform by activating a top drive. Concurrently with drilling the first well bore, a perforating operation is performed in a second well bore extending from the platform. The perforating operation is performed using a perforating gun that comprises at least one of an electric isolator and an explosive isolator. The perforating gun is activated when the perforating gun reaches a safe depth. | ||||||
| 235 | ISOLATION DEVICE CONTAINING A DISSOLVABLE ANODE AND ELECTROLYTIC COMPOUND | US14154596 | 2014-01-14 | US20140124216A1 | 2014-05-08 | Michael L. FRIPP; Zachary W. WALTON; Zachary R. MURPHREE |
| A wellbore isolation device comprising: a first material, wherein the first material: (A) is a metal or a metal alloy; and (B) partially dissolves when an electrically conductive path exists between the first material and a second material and at least a portion of the first and second materials are in contact with an electrolyte; and an electrolytic compound, wherein the electrolytic compound dissolves in a fluid located within the wellbore to form free ions that are electrically conductive. A method of removing the wellbore isolation device comprises: placing the wellbore isolation device into the wellbore; and allowing at least a portion of the first material to dissolve. | ||||||
| 236 | Dissolvable material application in perforating | US13688329 | 2012-11-29 | US08677903B2 | 2014-03-25 | Manuel P. Marya; Wenbo Yang; Lawrence A. Behrmann; Steven W. Henderson; Robert Ference |
| A shaped charge includes a charge case; a liner; an explosive retained between the charge case and the liner; and a primer core disposed in a hole in the charge case and in contact with the explosive, wherein at least one of the case, the liner, the primer core, and the explosive comprising a material soluble in a selected fluid. A perforation system includes a perforation gun, comprising a gun housing that includes a safety valve or a firing valve, wherein the safety valve or the firing valve comprises a material soluble in a selected fluid. | ||||||
| 237 | Radial Conduit Cutting System and Method | US13955851 | 2013-07-31 | US20140034315A1 | 2014-02-06 | Richard F. Tallini; Todd J. Watkins |
| What is presented is a metal magnalium thermite pellet that is used to create heated gas. The metal magnalium thermite pellet is made to be inserted into the cutting apparatus that is used for cutting a conduit for oil, gas, mining, and underwater pressure sealed tool applications. To cut the conduit, the cutting apparatus radially projects a flow of heated gas from the internal surface of the conduit through to its external surface. The metal magnalium thermite pellet is also made to be inserted into the high power igniter that releasably secures to the cutting apparatus. Generally, the metal magnalium thermite pellet comprises a metal magnalium thermite composition that consists of between 1 to 44 percent magnalium alloy, 1 to 44 percent aluminum, 40 to 60 percent iron oxide, and 10 to 20 percent polytetrafluoroethylene. | ||||||
| 238 | DOWNHOLD FLOW INHIBITION TOOL AND METHOD OF UNPLUGGING A SEAT | US14043425 | 2013-10-01 | US20140027128A1 | 2014-01-30 | Michael H. Johnson; Zhiyue Xu |
| A downhole flow inhibition tool includes at least a first component and a mating component at least a portion of one of the first component and the mating component is dissolvable in a target environment to reduce flow inhibition upon dissolution of the at least a portion. | ||||||
| 239 | REDUCED MECHANICAL ENERGY WELL CONTROL SYSTEMS AND METHODS OF USE | US14015003 | 2013-08-30 | US20140000902A1 | 2014-01-02 | Daniel L. Wolfe; Andyle G. Bailey; Daryl L. Grubb; Sharath K. Kolachalam; Mark S. Zediker; Paul D. Deutch |
| There is provided systems, methods and apparatus for the use of directed energy, including high power laser energy, in conjunction with mechanical shearing, sealing and closing devices to provide reduced mechanical energy well control systems and techniques. | ||||||
| 240 | SACRIFICIAL LINER LINKAGES FOR AUTO-SHORTENING AN INJECTION PIPE FOR UNDERGROUND COAL GASIFICATION | US13536082 | 2012-06-28 | US20140000873A1 | 2014-01-02 | Burl Edward Davis; Clifford William Mallett; Marion Russell Mark |
| 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. | ||||||
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