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 |
|---|---|---|---|---|---|---|
| 321 | High chrome/nickel milling with PDC cutters | US11212035 | 2005-08-23 | US20060090897A1 | 2006-05-04 | Calvin Stowe; Rustom Mody; Brad Pickle |
| A method of downhole milling of an item having high chrome/high nickel content, using polycrystalline diamond cutting elements, exhibiting less wear, requiring less torque and weight, and producing less heat, than prior art tungsten carbide elements. | ||||||
| 322 | Method and apparatus for well perforating | US10910058 | 2004-08-03 | US20060027368A1 | 2006-02-09 | Kevin Manke; Matthew Howell; Don Folds |
| Apparatus for cutting openings in a wall of a well. The apparatus includes a mandrel with a jetting sleeve slidably disposed about the mandrel. The mandrel has a plurality of slots defined therein and the jetting sleeve has a plurality of jetting openings aligned with the slots so that fluid will pass through the mandrel, the slots in the mandrel, and the jetting openings. The jetting nozzles are received in the jetting openings and travel in the slots in the mandrel. The flow of jetting fluid through the mandrel causes the jetting sleeve to move on the mandrel so that slots may be cut in the wall of the well. | ||||||
| 323 | Coiled tubing conveyed milling | US11180880 | 2005-07-13 | US20060011344A1 | 2006-01-19 | Gerald Lynde; John Davis |
| Milling in casing that is over 4½ inches is done with coiled tubing that is anchored against torque reaction. An improved debris catcher is part of the bottom hole assembly to capture cuttings from the milling. A thruster can be used to maintain weight on the mill during the milling. The coiled tubing supports a mud motor to drive the mill. Return fluid is separated from the cuttings and returned to the surface. | ||||||
| 324 | Apparatus and method for expanding a tubular | US11183574 | 2005-07-18 | US20050252662A1 | 2005-11-17 | Paul Metcalfe; Neil Andrew Simpson |
| A method of isolating a section of downhole tubing comprises: running a length of expandable tubing (20) into a tubing-lined borehole (12, 14) and positioning the expandable tubing (20) across a section of tubing to be isolated; deforming at least portions of the expandable tubing (36, 40) to increase the diameter of the portions to sealingly engage the tubing (14) and to isolate the tubing section. | ||||||
| 325 | Cutting locator tool | US10288032 | 2002-11-05 | US06929063B2 | 2005-08-16 | James Warren Reese; David Cundiff; Wilfred Schexnayder |
| Disclosed herein is a locator system for a cutting device in combination with a production string. Where the production string has at least one detent along its circumference. The invention also comprises a lock formed to engage the detent, a cutting device, and a body on which the lock is attached. The body is connected to the cutting device such that when the lock is engaged to the detent, the cutting device is operatively connected to the detent and the cutting device is positioned at a location to accurately sever the production string at a desired depth. An alternative embodiment of the detent is a nipple profile and the production string comprises a series of tubing members connected end to end. The tubing members can be a completion tool, tubing, or a combination of both. Also disclosed is a method of using the locator system. | ||||||
| 326 | Methods and apparatus for severing nested strings of tubulars | US11006050 | 2004-12-07 | US20050082063A1 | 2005-04-21 | Per Fotland; Tor Akerlund |
| An apparatus and method for use in severing casing as it is pulled from a wellbore. An apparatus is first provided, comprising a clamping assembly, a drilling assembly and a cutting assembly. In one aspect, the apparatus is disposed at the end of a telescopic arm, with the components being remotely operated by personnel using a control panel. The apparatus can be positioned adjacent casing and clamped thereto. Thereafter, the apparatus can drill a hole completely through the casing for the insertion of a retention pin. The apparatus can then severe the casing into manageable lengths to facilitate disposal, such as during a plugging and abandonment procedure. | ||||||
| 327 | Specialised petroleum services group limited | US10493009 | 2002-10-17 | US20050028982A1 | 2005-02-10 | Paul Howlett; George Telfer |
| A downhole tool (10) for use in the removal of burrs or other unwanted material from an inner surface of a pipeline, well casing or other tubular. The toll has a plurality of milling elements (32), which may be biased against the surface or retracted from the surface to disengage the toll from the tubular. A drop ball mechanism with a fluid by-pass is described for disengaging the milling elements. | ||||||
| 328 | Wear resistant tubular connection | US10483501 | 2002-07-18 | US20050011643A1 | 2005-01-20 | Maurice Slack; Robert Tessari; Per Angman; Tommy Warren |
| A wear resistant casing connection including a wear resistant portion on its exterior surface is taught. A casing connection having a controlled bend angle is also taught. | ||||||
| 329 | Casing wear band and method of attachment | US10480783 | 2004-06-08 | US20040231854A1 | 2004-11-25 | Maurice William Slack |
| A crimpable centralizer has been invented for installation on pipe, such as would be useful in well bore drilling and casing operations. The present invention provides a centralizer having a cylindrical body which when coaxially placed over a pipe and substantially radially inwardly displaced at a plurality of points (i.e. crimped) about the circumference of a section of the cylindrical body, attaches to the pipe to create a connection having structurally significant axial and torque load transfer capacity. When crimped according to the methods of the present invention, the load transfer capacity of the connection between the centralizer and the pipe can be arranged to substantially prevent significant relative movement of the centralizer on the pipe under loads that may be encountered when using one or more of the pipes as components of a tubular string used for drilling or completing well bores. | ||||||
| 330 | Method and apparatus for drilling and lining a wellbore | US10853494 | 2004-05-25 | US20040216878A1 | 2004-11-04 | Paul David Metcalfe; Neil Andrew Abercrombie Simpson |
| A method and apparatus is provided for drilling and lining a wellbore in one downhole trip. The method comprises mounting a drill bit on a drill string including a section of expandable tubing and providing a tubing expander in the string, then rotating the drill bit and advancing the drill string through a bore, then passing the expander through the expandable tubing to expand the tubing, wherein the expandable tubing is deformed by compressive plastic deformation of the tubing with a localised reduction in wall thickness, resulting in a subsequent increase in tubing diameter, and then retrieving the drill bit from the bore through the expanded tubing. The apparatus comprises a drill string including a section of expandable tubing, a drill bit mounted on the string, and a tubing expander mounted on the string, wherein the expandable tubing is deformed by compressive plastic deformation of the tubing with a localised reduction in wall thickness, resulting in a subsequent increase in tubing diameter and wherein the drill bit may be retrieved through the expanded tubing. | ||||||
| 331 | Expander | US09990772 | 2001-11-16 | US06805196B2 | 2004-10-19 | Lewis Lawrence |
| A tubing expander (10) comprises a body (12) carrying a plurality of radially movable piston-mounted rollers (24) and associated sleeves (16) mounted about the body (12) and being radially supported by the rollers (12). The expander (10) is positioned in a length of cubing of a first diameter, the pistons (28) extended, and the expander (10) rotated such that the sleeves (16) roll around the inner surface of the tubing and expand the tubing to a larger second diameter. | ||||||
| 332 | Tubing anchor | US09469526 | 1999-12-22 | US06702029B2 | 2004-03-09 | Paul David Metcalfe; Neil Andrew Abercrombie Simpson |
| A method of installing a liner in a drilled bore below a section of bore previously lined with casing comprises the steps of: running a length of liner into the bore such that at least an upper end of the liner is positioned in overlapping relation with at least a lower end of the casing; and plastically deforming a portion of the liner such that an external face of the portion forms an interference fit with an internal face of a portion of the casing. The interference fit preferably provides both hanging support for the liner and a fluid-tight seal between the liner and casing | ||||||
| 333 | Downhole sealing | US10145599 | 2002-05-14 | US06688400B2 | 2004-02-10 | Paul David Metcalfe; Neil Andrew Abercrombie Simpson |
| A method of providing a downhole seal, such as a packer, in a drilled bore between inner tubing and outer tubing comprises: providing an intermediate tubing section defining a seal arrangement for engaging with the inner tubing; and radially plastically deforming the intermediate tubing section downhole to form an annular extension. The extension creates a sealing contact with the outer tubing. | ||||||
| 334 | Downhole tubular string connections | US10103381 | 2002-03-21 | US20030178197A1 | 2003-09-25 | Ray C. Smith; Neil Hepburn |
| A method of forming a downhole connection between tubular strings includes the step of crimping the tubular strings together. The tubular strings may be positioned in the same wellbore, or the tubular strings may be positioned in different intersecting wellbores during the crimping step. One of the tubular strings may be expanded outwardly within the other tubular string prior to the crimping step. | ||||||
| 335 | Straddle | US10320187 | 2002-12-16 | US20030136561A1 | 2003-07-24 | Paul David Metcalfe; Neil Andrew Abercrombie Simpson |
| A method of isolating a section of downhole tubing comprises: running a length of expandable tubing (20) into a tubing-lined borehole (12, 14) and positioning the expandable tubing (20) across a section of tubing to be isolated; deforming at least portions of the expandable tubing (36, 40) to increase the diameter of the portions to sealingly engage the tubing (14) and to isolate the tubing section. | ||||||
| 336 | Method and apparatus for drilling and lining a wellbore | US09469643 | 1999-12-22 | US06543552B1 | 2003-04-08 | Paul David Metcalfe; Neil Andrew Abercrombie Simpson |
| A method and apparatus is provided for drilling and lining a wellbore in one downhole trip. The method comprises mounting a drill bit on a drill string including a section of expandable tubing and providing a tubing expander in the string, then rotating the drill bit and advancing the drill string through a bore, then passing the expander through the expandable tubing to expand the tubing, wherein the expandable tubing is deformed by compressive plastic deformation of the tubing with a localised reduction in wall thickness, resulting in a subsequent increase in tubing diameter, and then retrieving the drill bit from the bore through the expanded tubing. The apparatus comprises a drill string including a section of expandable tubing, a drill bit mounted on the string, and a tubing expander mounted on the string, wherein the expandable tubing is deformed by compressive plastic deformation of the tubing with a localised reduction in wall thickness, resulting in a subsequent increase in tubing diameter and wherein the drill bit may be retrieved through the expanded tubing. | ||||||
| 337 | Apparatus and method for isolating a section of tubing | US09469681 | 1999-12-22 | US06527049B2 | 2003-03-04 | Paul David Metcalfe; Neil Andrew Abercrombie Simpson |
| A method of isolating a section of downhole tubing comprises: running a length of expandable tubing (20) into a tubing-lined borehole (12, 14) and positioning the expandable tubing (20) across a section of tubing to be isolated; deforming at least portions of the expandable tubing (36, 40) to increase the diameter of the portions to sealingly engage the tubing (14) and to isolate the tubing section. | ||||||
| 338 | Downhole sealing | US10145599 | 2002-05-14 | US20020195256A1 | 2002-12-26 | Paul David Metcalfe; Neil Andrew Abercrombie Simpson |
| A method of providing a downhole seal, such as a packer, in a drilled bore between inner tubing and outer tubing comprises: providing an intermediate tubing section defining a seal arrangement for engaging with the inner tubing; and radially plastically deforming the intermediate tubing section downhole to form an annular extension. The extension creates a sealing contact with the outer tubing. | ||||||
| 339 | Anchoring device removal method and apparatus | US10061947 | 2002-01-31 | US20020144817A1 | 2002-10-10 | James C. Doane; Michael Vincent Smith; Roger Steele; John P. Davis; David B. Haughton |
| A method and apparatus for severing the mandrel of an anchor device such as a packer to release the packer and remove it from a well. A cutter locator profile above the packer assembly and a cutter locator element on the cutting tool are located so as to precisely position the cutting element at a desired location on the packer mandrel. Once the mandrel is severed, the packer assembly can elongate to release the expansion mechanism. Then, the packer assembly can be pulled upwardly to release the packer, and to remove it from the well. A cutting tool can be lowered through production tubing to sever the mandrel, followed by pulling the packer with the production tubing. Alternatively, a cutting tool can be lowered on a workstring and latched to the upper end of the packer assembly, followed by severing the mandrel and pulling the packer with the workstring. | ||||||
| 340 | Procedures and equipment for profiling and jointing of pipes | US09469690 | 1999-12-22 | US06457532B1 | 2002-10-01 | Neil Andrew Abercrombie Simpson |
| Methods and apparatus for shaping pipes, tubes, liners, or casing at downhole locations in wells. Use is made of rollers bearing radially outwards against the inside wall of the pipe (etc.), the rollers being rolled around the pipe to cause outward plastic deformation which expands and shapes the pipe to a desired profile. Where one pipe is inside another, the two pipes can be joined without separate components (except optional seals). Landing nipples and liner hangers can be formed in situ. Valves can be deployed to a selected downhole location and there sealed to the casing or liner without separate packers. Casing can be deployed downhole in reduced-diameter lengths and then expanded to case a well without requiring larger diameter bores and causing further uphole. The invention enables simplified downhole working, and enables a well to be drilled & produced with the minimum downhole bore throughout its depth, obviating the need for large bores. When expanding lengths of casing, the casing does not need to be anchored to made pressure-tight. The profiling/expansion tools of the invention can be deployed downhole on coiled tubing, and operated without high tensile loads on the coiled tubing. | ||||||
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