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 |
|---|---|---|---|---|---|---|
| 201 | APPARATUS AND METHOD FOR DRILLING DEVIATED WELLBORES | US15772007 | 2016-10-19 | US20180313156A1 | 2018-11-01 | David Joe Steele; Clifford Lynn Talley; Doug Durst; Mark C. Glaser |
| Systems and methods are described for drilling a new secondary wellbore from a primary wellbore in which a production string is already deployed. The production string is severed below a desired kick-off location for the new secondary wellbore and the upstream portion of the production string is withdrawn from the primary wellbore, thereby exposing an end of the remaining production string. A lateral orientation device (LOD) is mounted on the exposed end of the production string. The LOD includes a shoulder for seating on the exposed end, anchoring mechanism(s) to secure the LOD to adjacent tubular(s), and seals to sealingly engage adjacent tubulars. The LOD may include a contoured surface for orientation of a tool, such as a whipstock, which may be utilized to drill a new wellbore. Alternatively, a work string may be coupled with the LOD to perform pumping operations in the wellbore below the LOD. | ||||||
| 202 | Drill bit for milling composite plugs | US15043500 | 2016-02-12 | US10113365B2 | 2018-10-30 | Matthew D. Mumma; Dustin M. Lyles |
| A roller cone drill bit having at least one roller cone cutter, the roller cone cutter having multiple rows of cutting elements, arranged concentrically around the axis of rotation of the roller cone. One row of cutting elements is located on the heel of the roller cone. Each of the rows of cutting elements includes both cemented tungsten carbide inserts and milled teeth as cutting elements. | ||||||
| 203 | CENTRAL SHAFT FOR BRIDGE PLUG, BRIDGE PLUG AND SETTING METHOD FOR THE SAME | US15718591 | 2017-09-28 | US20180305997A1 | 2018-10-25 | Aimin Chen |
| The present disclosure discloses a central shaft for a bridge plug, a bridge plug and a setting method for the bridge plug, and relates to the technical field of bridge plug. The present disclosure addresses the technical problems existing in the prior art that degradable plastics and degradable metal materials are unable to manufacture a bridge plug with a large inner diameter. The central shaft comprises a setting mandrel and a setting tubular shaft, and the setting tubular shaft includes a squeezing shoulder for squeezing a compression ring or a reducing support ring of the bridge plug, and a support trunk; after the setting mandrel is disconnected from the downstream-end support, the setting mandrel can be withdrawn from the central hole of the setting tubular shaft so that the central hole of the setting tubular shaft forms an internal fluid channel of the bridge plug; and the strength of the material of the setting mandrel is higher than the strength of a degradable material or corrodible material, and the material of the setting tubular shaft is a degradable material or a corrodible material. The bridge plug comprises the central shaft provided in the present invention. The present disclosure is used to enlarge the inner diameter of the bridge plug, and improve the plugging effect, anchoring performance and construction convenience of the bridge plug. | ||||||
| 204 | METHOD FOR NUCLEAR WASTE STORAGE AND MONITORING | US15480909 | 2017-04-06 | US20180294064A1 | 2018-10-11 | Marlan Downey |
| A method comprising storing nuclear waste, including identifying a subterranean storage site location having a shale rock layer. The layer has an expected fluid overpressure in a range corresponding to greater than hydrostatic pressure to less than lithostatic pressure from overlying rock layers. Storing the waste can include forming a storage borehole, with an end segment of the storage borehole located within the layer and measuring the fluid pressure in the end segment of the storage borehole. If the measured fluid pressure in the end segment of the storage borehole is in the expected fluid overpressure range, forming a monitoring borehole in the layer with an end segment of each of the monitoring boreholes being in a vicinity of the end segment of the storage borehole and storing nuclear waste in the end segment of the storage borehole. A system for storing and monitoring nuclear waste is also described. | ||||||
| 205 | DOWNHOLE TOOLS HAVING CONTROLLED DEGRADATION AND METHOD | US15599128 | 2017-05-18 | US20180283142A1 | 2018-10-04 | Zhihui Zhang; Zhiyue Xu; Goang-Ding Shyu; Juan Carlos Flores Perez; James Doane; Yingqing Xu |
| A downhole assembly includes a downhole tool including a degradable-on-demand material including: a matrix material; and, a unit in contact with the matrix material. The unit includes a core including an energetic material configured to generate energy upon activation to facilitate degradation of the downhole tool; and, an activator disposed in contact with the core, the activator including a triggering system having an electrical circuit and an igniter within the electrical circuit, the electrical circuit having an open condition and a closed condition, the electrical circuit configured to be in the closed condition after movement of an object downhole that engages directly or indirectly with the triggering system, and the igniter arranged to ignite the energetic material in the closed condition of the electrical circuit. In the open condition of the electrical circuit the igniter is inactive, and in the closed condition of the electrical circuit the igniter is activated. | ||||||
| 206 | DOWNHOLE TOOLS HAVING CONTROLLED DISINTEGRATION | US15472382 | 2017-03-29 | US20180283119A1 | 2018-10-04 | Zhihui Zhang; Zhiyue Xu; Goang-Ding Shyu; Juan Carlos Flores Perez |
| A multilayered unit includes a core comprising an energetic material and an activator; a support layer disposed on the core; and a protective layer disposed on the support layer, wherein the support layer and the protective layer each independently comprises a polymeric material, a metallic material, or a combination comprising at least one of the foregoing, provided that the support layer is compositionally different from the protective layer. The multilayered unit can be embedded in a component, attached to a component, or disposed between two components of a downhole assembly. The downhole assembly containing the multilayered unit has controlled disintegration in a downhole environment. | ||||||
| 207 | THREAD SHEAR WIRELINE ADAPTER KIT AND BOREHOLE TOOL SETTING ARRANGEMENT AND METHOD | US15448190 | 2017-03-02 | US20180252062A1 | 2018-09-06 | Samuel Robinson; Yash Parekh; Hector Ramirez |
| A thread shear based wireline adapter kit and downhole tool setting arrangement including a downhole tool having an inside diameter flow path extending therethrough after setting of the downhole tool, a wireline adapter kit disposed in the flow path, a member disposed at a downhole end of the downhole tool, the member having a threadform therein, the threadform threaded to the wireline adapter kit, the threadform shearable to release the wireline adapter kit from the downhole tool after setting leaving the flow path open. A method for setting a downhole tool including pulling a wireline adapter kit (WLAK) that is secured to a downhole tool by a threadform, loading the threadform axially to set the tool, further loading the threadform to axially shear the threadform, releasing the WLAK from the downhole tool leaving a flow path through the downhole tool. | ||||||
| 208 | Cut to Release Packer Extension | US15414176 | 2017-01-24 | US20180209238A1 | 2018-07-26 | Christopher J. Limb; Frank J. Maenza; Gary L. Anderson |
| A string from the surface is connected to a packer extension with a thread to provide a metal to metal seal for production or injection through the packer. The thread provides a metal to metal seal. The initial string is released from the packer extension by a tubular cut made with a cutting tool above the thread that provides the metal to metal seal to the packer extension. An outer sleeve surrounds an expanded length of wall which is the target cut zone above the threaded connection. A cut through the tubular does not cut the outer sleeve. The outer sleeve features a left handed square thread to engage a known released tool run in on a string to connect to the packer release mechanism and release the packer for removal with the release tool suspended from a string. | ||||||
| 209 | DOWNHOLE BYPASS TOOL | US15910389 | 2018-03-02 | US20180187516A1 | 2018-07-05 | ROGER SCHULTZ; Andy Ferguson |
| The present disclosure is directed to a downhole bypass tool that includes an inlet for receiving fluid into a housing of the bypass tool. 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 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. | ||||||
| 210 | Destruction Mechanism for a Dissolvable Sealing Device | US15578888 | 2016-05-31 | US20180156002A1 | 2018-06-07 | Viggo Brandsdal; Jan Tore Tveranger |
| A sealing device relates to a plug that includes a crusher mechanism, where the sealing device includes one or more glass layers positionable in a wellbore. The glass in a barrier phase bears against at least one seat or support sleeve arranged axially displaceably in the wellbore, where the at least one seat or support sleeve bears against the glass by means of a supporting hydraulic fluid in a pressure support chamber, the seat or support sleeve being configured to be released, be displaced axially, and to crush the glass when the supporting hydraulic fluid is released from the pressure support chamber. | ||||||
| 211 | Downhole Friction Control Systems and Methods | US15576462 | 2015-06-29 | US20180156001A1 | 2018-06-07 | Kenneth L. Schwendemann; Robert Mitchell Neely |
| A downhole friction control system comprises a downhole sub to attach to a drill string and a vibration component. The vibration component is mechanically coupled to the downhole sub to generate a selected vibration in the drill string when the downhole sub is attached to the drill string. Additional apparatus, methods, and systems are disclosed. | ||||||
| 212 | Side packer assembly with support member for ram blowout preventer | US14947805 | 2015-11-20 | US09976374B2 | 2018-05-22 | Raul Araujo; Jeffrey Lambert |
| A blowout preventer (“BOP”) includes a housing comprising a vertical bore extending through the housing and ram cavities intersecting the bore and a pair of opposing ram assemblies, with each ram assembly movably positionable within a ram cavity and comprising a side packer assembly. The side packer assembly comprises an upper plate, a lower plate, an elastomeric body positioned between the upper plate and the lower plate and comprising elastomeric material, and a support member positioned between the upper plate and the lower plate and configured to confine movement of the elastomeric body when sealing. | ||||||
| 213 | DRILLABLE LATCHING PLUG | US15800696 | 2017-11-01 | US20180135370A1 | 2018-05-17 | Baozhong Yang; Dwayne P. Terracina; Tommy G. Ray; Jeremy O'Neal |
| A latching dog includes a dog body, at least one engagement arm protrudes from an outer radial surface of the dog body in a transverse direction, and at least one retention fin protrudes from the dog body in a longitudinal direction. The at least one retention fin maintains the latching dog engaged with a housing surface to keep the latching dog at a desired axial and/or rotational position while milling the housing and latching dog. | ||||||
| 214 | High power laser iris cutters | US14791060 | 2015-07-02 | US09957766B2 | 2018-05-01 | Mark S. Zediker; Robert R. Rice; William F. Krupke; Brian O. Faircloth |
| There are provided using deuterium oxide as a media for transmitting high power lasers to perform laser operations, such as cutting, boring and drilling, a target material. High power laser beams are transmitted through a deuterium oxide beam path to a target material, including material in a pressure containment vessel. | ||||||
| 215 | Behind pipe evaluation using a nuclear density tool | US15111634 | 2015-05-19 | US09951614B2 | 2018-04-24 | Yike Hu; Weijun Guo |
| In relation to a cut and pull operation, a nuclear tool may be used for evaluating the composition of materials located behind a pipe lining the wellbore. More specifically, a downhole method may include emitting gamma rays into the pipe and the material from a source of a nuclear tool disposed in the wellbore; detecting gamma radiation scattered back from the pipe and the material with a detector of the nuclear tool; determining a high-energy range and a low-energy range for the gamma radiation; measuring count rates of the gamma radiation in the high-energy range (CRH) and the low-energy range (CRL); performing an analysis of (1) the CRH relative to (2) the CRL; and determining a compositional equivalent for the material based on the analysis. | ||||||
| 216 | METHOD OF ABANDONING A WELL | US15562523 | 2016-03-31 | US20180094503A1 | 2018-04-05 | Michael WARDLEY; George TELFER; Alan FAIRWEATHER |
| The invention provides a method of determining the condition of a cement bond of a casing in a wellbore. The method comprises perforating a tubing in the wellbore at a zone of interest and displacing a settable composition through the perforations into the annulus between the casing and tubing to secure the tubing. The method also comprises cutting the tubing and assessing the status of the cement bond of the casing. | ||||||
| 217 | Degradable Devices With Assured Identification of Removal | US15701701 | 2017-09-12 | US20180087369A1 | 2018-03-29 | Andrew Sherman; Brian Doud |
| The use of degradable or dissolvable tools has become a more common practice in subterranean operations for such applications as temporarily isolating zones or diverting flow. A major concern of operators in using degradable tools is the ability to ensure that the tool has completely degraded and is no longer blocking or obstructing flow. This issue can be resolved through the use of degradable or dissolving tools and devices that include one or more tracer elements (e.g., tracer chemicals, chemical elements, particles, tags [RFID, physical tag, microdevice, etc.], etc.) that are released upon the partial or full dissolution of the degradable component, and which can be detected at the surface to ensure the desired degradation or removal of the degradable component as well as hydraulic access to that stage. | ||||||
| 218 | BIT FOR DRILLING WITH CASING OR LINER STRING AND MANUFACTURE THEREOF | US15629083 | 2017-06-21 | US20180016847A1 | 2018-01-18 | Gary M. THIGPEN; Bruno CUILLIER DE MAINDREVILLE; Gilles GALLEGO |
| A bit for drilling with a casing or liner string includes: a tubular stem made from a high strength metal or alloy; a head: having a cutting face with an inner cone, an outer shoulder, and an intermediate nose between the cone and the shoulder; attached to an end of the stem; and made from a nonferrous metal or alloy; a plurality of blades formed integrally with the head, made from the nonferrous metal or alloy, and each extending from a center of the cutting face to the shoulder; a plurality of superhard cutters mounted along each blade; a plurality of gauge pads formed integrally with the stem; and a flush joint formed between each blade and a respective gauge pad. A yield strength of the high strength metal or alloy is at least twice a yield strength of the nonferrous metal or alloy. | ||||||
| 219 | Isolation device containing a dissolvable anode and electrolytic compound | US15469918 | 2017-03-27 | US09863201B2 | 2018-01-09 | 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. | ||||||
| 220 | Extended reach plug | US15588608 | 2017-05-06 | US09850736B2 | 2017-12-26 | Warren Lynn Frazier |
| A settable down hole tool is of increased drillability and/or of increased expansibility. The improvement in drillability can be caused by fracturing cast iron slips into a large number of small pieces that can be circulated out of a well without further reduction in size. The improvement in expansibility can be partially caused by providing an expander cone of increased hardness thereby allowing an increased angle on the expander cone and slips. The improvement in expansibility can be partially caused by increasing the thickness of the slips. | ||||||
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