子分类：
- E21B29/002： .{用沿着管子周围转动的切割器切割管子,例如,研磨}
- E21B29/02： .使用炸药或热力或化学方法(通过爆炸释放粘住的物品入E21B31/002;通过爆炸破坏井眼或井中的物体入E21B31/16)
- E21B29/04： .切割钢丝绳或类似物(E21B29/02优先)
- E21B29/06： .切割窗口,例如,用于造斜器操作的定向窗口切割器(E21B29/005和E21B29/08优先;造斜器入E21B7/061)
- E21B29/08： .切割管道或使管道变形来控制液体流动(剪切型防喷器入E21B33/06)
- E21B29/10： .修复井筒,例如,调直
- E21B29/12： .专门适用于水下安装的(E21B29/08优先)
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 241 | Downhole Tool Method and Device | US15033547 | 2014-10-15 | US20160273307A1 | 2016-09-22 | Steffen EVERTSEN |
| A downhole tool (1) method and device, in which the downhole tool (1) is designed to form part of a pipe string (4), and in which a valve (24) is provided with a passage (120) for fluid, the passage (120) including an opening and closing mechanism (78), and the method including : connecting a first valve portion (26) to the pipe string (4); connecting a second valve portion (28) telescopic relative to the first valve portion (26) to a downhole object (20); pre-tensioning the first valve portion (26) and the second valve portion (28) in the direction of contraction to an initial position, in which the opening and closing mechanism (78) is open; and moving the first valve portion (26) relative to the second valve portion (28) in the direction of extension to close the opening and closing mechanism (78). | ||||||
| 242 | System and method of cutting and removing casings from wellbore | US13949735 | 2013-07-24 | US09416635B2 | 2016-08-16 | Stephen Hekelaar |
| A spearing device for removing casing from wellbore includes a top sub, a bottom sub, and a mandrel coupled to the top and bottom subs. The device includes a grapple having a corrugated inner surface corresponding to a corrugated portion of the mandrel and an outer surface including wickers for engaging an interior surface of the casing. A piston is disposed within the mandrel and operatively coupled to the grapple. A spring operates with the piston and biases the grapple toward a collapsed position. The grapple axially and rotationally moves along the corrugated outer surface of the mandrel. The grapple expands and collapses in response to axial movement relative to the mandrel. The piston compresses the spring and axially moves and expands the grapple in response to increases in hydraulic pressure. In response to subsequent decreases in hydraulic pressure, the spring decompresses and axially moves and collapses the grapple. | ||||||
| 243 | SYSTEMS AND CONVEYANCE STRUCTURES FOR HIGH POWER LONG DISTANCE LASER TRANSMISSION | US14058681 | 2013-10-21 | US20160222763A1 | 2016-08-04 | Ronald A. DeWitt; Mark S. Zediker; Brian O. Faircloth; Daryl L. Grubb; Ryan P. McKay; William C. Gray; Joel F. Moxley; Charles C. Rinzler; Lance D. Underwood; Paul D. Deutch |
| There is provided a mobile high power laser system and conveyance structure for delivering high power laser energy to and for performing high power laser operations in remote and difficult to access locations. There is further provide such systems with high power laser, handling equipment and conveyance equipment that are configured to avoid exceeding the maximum bending radius of high power optical fibers used with the conveyance structures. There are also provided embodiments of the conveyance structures having channels, lines and passages for delivering materials such as fluids. | ||||||
| 244 | APPARATUS AND METHOD FOR CONTROLLING A DOWNHOLE DEVICE | US14891176 | 2014-05-14 | US20160130897A1 | 2016-05-12 | Krzysztof Machocki |
| Apparatus for controlling a downhole device in a well, comprises a body having a control slot engaging a pin. Movement of the pin relative to the control slot switches the device between active and inactive states. The slot has at least one loop and at least one elongated axial track spaced around the body with respect to the at least one loop. The pin can move in the at least one elongated axial track between different configurations of the pin and slot which correspond to active and inactive configurations of the downhole device. Each of the at least one elongated axial track is connected to one of the at least one loop via a deviate branch track, and the control slot has no separate, dedicate return path for returning the pin from the deviate branch track to the elongated axial track. | ||||||
| 245 | SEALING A BORE OR OPEN ANNULUS | US14898872 | 2014-06-09 | US20160123122A1 | 2016-05-05 | Hans Johannes Cornelius Maria VAN DONGEN; Hans-Henrik KOGSBOLL |
| Disclosed is a method for use in restricting or sealing a bore. A tubular is expanded in the bore to cause the tubular to split and be extended towards a wall of the bore. A straddle is located within the tubular so as to extend across the region of the tubular which has been split, and expanded to seal the split in the tubular. Also disclosed is apparatus comprising one or more expansion tools and a straddle, for use in sealing or restricting a bore. The apparatus may be used in conjunction with a tubular as disclosed herein, having one or more weak zones adapted to preferentially split under the action of an expansion tool. | ||||||
| 246 | Method for using a downhole tool for guiding a cutting tool | US14752337 | 2015-06-26 | US09316094B2 | 2016-04-19 | Brock Watson; Roger Schultz |
| An apparatus that includes a guiding tool for transferring fluid pressure to movement of a cutting tool relative to the guiding tool while the cutting tool is cutting slots in a casing or formation via at least one nozzle disposed in the cutting tool. Furthermore, a method of cutting a slot in a casing or formation using the apparatus. | ||||||
| 247 | Downhole tool for guiding a cutting tool | US14752304 | 2015-06-26 | US09303495B2 | 2016-04-05 | Brock Watson; Roger Schultz |
| An apparatus that includes a guiding tool for transferring fluid pressure to movement of a cutting tool relative to the guiding tool while the cutting tool is cutting slots in a casing or formation via at least one nozzle disposed in the cutting tool. Furthermore, a method of cutting a slot in a casing or formation using the apparatus. | ||||||
| 248 | Radial Conduit Cutting System and Method | US14469149 | 2014-08-26 | US20160060988A1 | 2016-03-03 | Richard F. Tallini; Todd J. Walkins |
| What is presented is a combustible pellet for creating heated gas. The combustible pellet can be inserted into a cutting apparatus or a high power igniter or both. The combustible pellet is compacted to be resistant to mechanical damage, resistant to unintentional ignition, and free from a loose powdered form of combustible material when ignited in the cutting apparatus or the high power igniter.In certain instances, the combustible pellet is compacted to between 90 percent and 99 percent of its theoretical density. The combustible pellet may be capable of being transported separate from the cutting apparatus or the high power igniter or both. The combustible pellet may also be capable of being stored separate from the cutting apparatus or the high power igniter or both. The combustible pellet may comprise a circular cross-section and tubular length. The combustible pellet may comprise an axial hole. | ||||||
| 249 | CONDITIONING FERROUS ALLOYS INTO CRACKING SUSCEPTIBLE AND FRAGMENTABLE ELEMENTS FOR USE IN A WELL | US14875630 | 2015-10-05 | US20160024864A1 | 2016-01-28 | Manuel Marya; Andrew T. Werner |
| A technique includes providing a tool to be deployed in a well to perform a downhole function. The downhole function requires a minimum structural integrity for an element of the tool. The technique includes forming at least part of the element from a ferrous alloy and charging the alloy with hydrogen cause the element to be more prone to cracking than before the hydrogen charging. | ||||||
| 250 | METHOD FOR USING A DOWNHOLE TOOL FOR GUIDING A CUTTING TOOL | US14752337 | 2015-06-26 | US20160017699A1 | 2016-01-21 | Brock Watson; Roger Schultz |
| An apparatus is disclosed that includes a guiding tool for transferring fluid pressure to movement of a cutting tool relative to the guiding tool while the cutting tool is cutting slots in a casing or formation via at least one nozzle disposed in the cutting tool. Furthermore, a method of cutting a slot in a casing or formation using the apparatus is disclosed. | ||||||
| 251 | System and method for enhanced sealing of well tubulars | US13773215 | 2013-02-21 | US09222331B2 | 2015-12-29 | Kurt Schneidmiller; Timothy Edward LaGrange; Bradley Vass |
| A well isolation includes a radially expandable sealing element that engages an interior wall of the wellbore tubular and a radially expandable expansion cone in telescopic relationship with the sealing element. The expansion cone expands the sealing element and a swage telescopically engages and expands the expansion cone. | ||||||
| 252 | Enhanced electrolytic degradation of controlled electrolytic material | US13291530 | 2011-11-08 | US09187686B2 | 2015-11-17 | James B. Crews |
| A method for degrading a downhole article includes exposing the downhole article to a composition comprising a corrosive agent selected from a reducing sugar, ester, aminocarboxylic acid, or a combination thereof. The method also includes contacting the downhole article with the corrosive agent to degrade the downhole article. Additionally, a composition for degrading a downhole article includes water, salt, and a corrosive agent selected from a reducing sugar, ester, aminocarboxylic acid, or a combination thereof. | ||||||
| 253 | Downhole bypass tool | US14553719 | 2014-11-25 | US09181767B2 | 2015-11-10 | Roger Schultz; Andy Ferguson |
| A downhole bypass tool that includes an inlet for receiving fluid into a housing of the bypass tool is described herein. The bypass tool also includes a flow directing apparatus disposed in the housing for directing fluid to flow into an operational flow path of a vibratory tool. The vibratory tool is at least partially disposed within the hosing of the bypass tool. The flow directing apparatus operates to selectively bypass the operational flow path of the vibratory tool such that the fluid bypasses the operational flow path of the vibratory tool and flows out of an outlet of the bypass tool. | ||||||
| 254 | Apparatus and method for galvanically removing from or depositing onto a device a metallic material downhole | US13249912 | 2011-09-30 | US09163467B2 | 2015-10-20 | Sean L. Gaudette; Michael H. Johnson |
| In one aspect, a method of performing a wellbore operation is disclosed that in one embodiment may include: deploying a device in the wellbore containing a conductive fluid, wherein the device is configured to disintegrate upon application of electrical current thereto; and applying current to the device in the wellbore using a tool to controllably disintegrate the device. In another aspect, an apparatus for use downhole is provided that in one embodiment may include a device placed at a selected location in a wellbore, wherein the device is made from a material that disintegrates when electric current is induced in to device and a tool placed proximate to the device configured to induce electric current into the device to cause the device to disintegrate. | ||||||
| 255 | Conditioning ferrous alloys into cracking susceptible and fragmentable elements for use in a well | US11844414 | 2007-08-24 | US09157141B2 | 2015-10-13 | Manuel Marya; Andrew T. Werner |
| A technique includes providing a tool to be deployed in a well to perform a downhole function. The downhole function requires a minimum structural integrity for an element of the tool. The technique includes forming at least part of the element from a ferrous alloy and charging the alloy with hydrogen cause the element to be more prone to cracking than before the hydrogen charging. | ||||||
| 256 | Face stabilized downhole cutting tool | US13487844 | 2012-06-04 | US09151120B2 | 2015-10-06 | Calvin J. Stowe, II |
| Downhole cutting tools such as blade mills comprise a body having an upper end for connection with a rotating component of a drill string and a guide member disposed at lower end. The guide member can comprise a shape that is reciprocal to an engagement member disposed on an object within the well that is to be cut by the cutting mill. In certain embodiments, the guide member comprises a portion that is spherically shaped or an apex formed by two angled cutting elements. The cutting tools can also include one or more blades having cutting elements disposed thereon in a stepped arrangement. In one such embodiment, the cutting elements are disposed to cover one or more steps profiled on a lower end of the blade to lessen wear of the blade caused by the cutting of the object by the blade. | ||||||
| 257 | System for removing a tubular | US13776271 | 2013-02-25 | US09133669B1 | 2015-09-15 | Jimmy Duane Streety; James Otis Miller; Jack Allen |
| A tubular lift safety system can include a wellbore tubular removal system for removing tubulars from wellbores, which can have an upper section movable relative to a lower section. The upper section and the lower section can both have gripping members for gripping and releasing the tubulars while the upper section is moved relative to the lower section; thereby removing the tubulars from the wellbore. The upper section can have cutting devices for forming lifting holes and a saw for cutting the tubulars. A fluid source can control extension and retraction of the upper section relative to the lower section, operation of the gripping members, and operation of the saw. A remote control can monitor pressure from the fluid source. | ||||||
| 258 | Repaired wear and buckle resistant drill pipe and related methods | US13413311 | 2012-03-06 | US09085942B2 | 2015-07-21 | Ghazi J. Hashem; David Brunnert; John W. Kochera; Mark Mitchell; Melissa A. Frilot; Thomas M. Redlinger |
| The present invention embodies a drill pipe in which various damaged sections of the pipe are repaired in order to maintain or improve the wear and buckle resistance of the drill pipe. The sections are strengthened using various hardening methods such as heat treatment processes and/or expansion techniques. A sleeve can also be applied to the strengthened portions. Surface enhancers, such as hardbanding, can be applied to the strengthened portions or the sleeve in order to provide abrasion resistance or to reduce friction. | ||||||
| 259 | Method and apparatus for removing unexpanded shoe | US14196003 | 2014-03-04 | US09080402B2 | 2015-07-14 | Eric James Connor; Harsh V. Chowdhary; Frederick C. Bennett; Nanda K. Boddeda; Ronald T. Robinson |
| A method of removing an unexpanded shoe comprises disposing a tool in a wellbore. The tool includes a latch assembly and a mill body. The latch assembly is engaged with a shoe assembly that is coupled to the wellbore by a tubular having an expanded portion and an unexpanded portion. The mill body is rotated relative to the latch assembly so as to mill the unexpanded portion of the tubular until the shoe assembly is uncoupled from the wellbore. The tool and the shoe assembly are then pulled through the expanded portion and out of the wellbore. | ||||||
| 260 | Tubular retrieval | US13510909 | 2010-11-19 | US09045958B2 | 2015-06-02 | Alan Martyn Eddison |
| A tubular retrieval method involves applying a cyclically varying fluid pressure to the interior of a section of cut bore-lining tubular. The tubular may be casing which it is desired to remove from a bore. A pulling force may also be applied to the tubular. | ||||||
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