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1. 发明申请

US20100307736A1 Permanent Bypass Whipstock Assembly For Drilling and Completing a Sidetrack Well and Preserving Access to the Original Wellbore 有权
标题翻译：永久性旁路惠斯勒组件用于钻井和完井钻井，并保留进入原始井眼
公开(公告)号：US20100307736A1
公开(公告)日：2010-12-09
申请号：US12796370
申请日：2010-06-08
申请人： David D. Hearn , Lamar L. Gantt , Dan E. Venhaus , John G. Eller
发明人： David D. Hearn , Lamar L. Gantt , Dan E. Venhaus , John G. Eller
IPC分类号： E21B23/03 , E21B7/04
CPC分类号： E21B41/0035 , E21B7/061 , E21B10/00 , E21B29/06 , E21B33/12 , E21B33/16 , E21B43/10
摘要： The present invention relates to drilling lateral wells or sidetrack wells from a primary wellbore to enhance the efficiency and productivity of oil and gas wells.
摘要翻译：本发明涉及从主井眼钻井侧井或侧钻井，以提高油气井的效率和生产率。

2. 发明申请

US20100218996A1 DIRECTIONAL SIDETRACK WELL DRILLING SYSTEM 有权
标题翻译：方向边缘井式钻井系统
公开(公告)号：US20100218996A1
公开(公告)日：2010-09-02
申请号：US12708266
申请日：2010-02-18
申请人： David D. Hearn
发明人： David D. Hearn
IPC分类号： E21B7/08 , E21B7/04
CPC分类号： E21B7/061 , E21B7/067 , E21B10/26
摘要： This invention relates to drilling a sidetrack wellbore out of the side of an existing wellbore utilizing a drillable billet having a path formed in the billet to lead a bi-centered drillbit to kick-out from the wellbore and form a sidetrack wellbore. The bi-centered bit is arranged for the lands of the pilot section to follow the path of the billet while the wings of the ream out a portion of the billet and also ream out the earth to form the full dimension sidetrack wellbore. The bi-centered bit is used to drill the sidetrack wellbore to the target zone so that the entire drilling process extends from the existing wellbore to the target zone without a mandatory withdrawal of the drillstring from the wellbore. Tripping time is therefore less and drill time and rig time would inherently be less resulting in lower costs and increased profitability.
摘要翻译：本发明涉及利用具有在坯料中形成的路径的可钻孔坯料将现有井筒的侧面钻出侧钻井筒，以引导双中心钻孔从井筒中踢出并形成侧钻井筒。双中心钻头安排在飞行员区域的土地上，以跟随钢坯的路径，同时将机翼的一部分弹出出来，并且还将地弹出，以形成全尺寸侧钻井筒。双中心钻头用于将侧钻井眼钻到目标区域，使得整个钻井过程从现有的井眼延伸到目标区域，而不必将钻柱强制从钻井中撤出。因此，跳闸时间较短，钻取时间和钻机时间本来会较少，从而降低成本并提高盈利能力。

3. 发明授权

US5794697A Method for increasing oil production from an oil well producing a mixture of oil and gas 失效
标题翻译：从油井生产石油和天然气的混合物提高石油生产的方法
公开(公告)号：US5794697A
公开(公告)日：1998-08-18
申请号：US757857
申请日：1996-11-27
申请人： John R. Wolflick , James L. Cawvey , Jerry L. Brady , John R. Whitworth , David D. Hearn
发明人： John R. Wolflick , James L. Cawvey , Jerry L. Brady , John R. Whitworth , David D. Hearn
IPC分类号： E21B43/18 , E21B43/38 , E21B43/40
CPC分类号： E21B43/18 , E21B43/385
摘要： A system and a method for producing increased quantities of oil from an oil well producing a mixture of oil and gas through a well bore penetrating an oil bearing formation containing a gas cap zone and an oil bearing zone by separating at least a portion of the gas from the mixture of oil and gas downhole in an auger separator to produce a separated gas and an oil enriched mixture; compressing at least a portion of the separated gas downhole to a pressure greater than the pressure in the gas cap zone to produce a compressed gas; and, injecting the compressed gas into the gas cap and, recovering at least a major portion of the oil enriched mixture.
摘要翻译：一种用于从油井产生更多量的油的系统和方法，其产生油和气体的混合物，穿过穿透含有气帽区域和含油区域的含油地层的井眼，通过分离至少一部分气体从螺旋分离器中的井下油和油的混合物产生分离的气体和富含油的混合物; 将井下的分离气体的至少一部分压缩至大于气帽区域中的压力的压力以产生压缩气体; 并且将压缩气体注入气帽并回收至少大部分富油混合物。

4. 发明授权

US5113703A Tubing end locating apparatus for wellbores 失效
标题翻译：井筒管道端部定位装置
公开(公告)号：US5113703A
公开(公告)日：1992-05-19
申请号：US564932
申请日：1990-08-09
申请人： David D. Hearn
发明人： David D. Hearn
IPC分类号： E21B47/08 , E21B47/09
CPC分类号： E21B47/08 , E21B47/091
摘要： The lower end of a wellbore tubing string or a change in diameter of a wellbore component may be sensed by an apparatus connectable to the end of an elongated coilable tubing for insertion into the tubing string and responsive to movement of the apparatus into or out of the end of the tubing string to effect a change in flow of fluid being conducted through the coilable tubing. The apparatus includes opposed arms engageable with the bore of the tubing string and engageable with a piston member to effect closure of ports in the apparatus to change the flow of fluid through the tubing in response to movement of the arms into or out of the end of the tubing string. Alternate embodiments include bypass passages for conducting pressure fluid to a packer or wellbore tool.
摘要翻译：井眼管柱的下端或井筒部件的直径变化可以由可连接到细长的可卷绕管的端部的装置来感测，用于插入油管柱中并且响应于装置进入或离开油管柱的端部以实现通过可卷曲管道传导的流体的流动的变化。该装置包括可与管柱的孔接合的相对的臂，并可与活塞构件接合，以实现装置中的端口的闭合，以响应臂的移动而改变通过管的流体流入或移出油管柱。替代实施例包括用于将压力流体传导到封隔器或井筒工具的旁路通道。

5. 发明授权

US4744420A Wellbore cleanout apparatus and method 失效
标题翻译：井筒清理装置及方法
公开(公告)号：US4744420A
公开(公告)日：1988-05-17
申请号：US76565
申请日：1987-07-22
申请人： John C. Patterson , David D. Hearn
发明人： John C. Patterson , David D. Hearn
IPC分类号： E21B7/18 , E21B17/18 , E21B21/12 , E21B37/00 , E21B41/00
CPC分类号： E21B41/0078 , E21B17/18 , E21B21/12 , E21B37/00 , E21B7/18
摘要： Sand is evacuated from horizontal and vertical wellbores utilizing a jet pump connected to the distal end of a concentric tubing string which is insertable in the wellbore and extendable from the earth's surface or from a seal member providing a crossover flow path between the wellbore annulus above the seal member and the inner tubing member of the concentric tubing string. The jet pump includes a plurality of nozzles for ejecting evacuation of fluid into the wellbore to agitate and entrain accumulated solids for flow into a pump inlet cavity and to be propelled out of the pump by a portion of the evacuation fluid acting as a jet pump power fluid. The inner tubing member may be coilable tubing which is inserted into the outer tubing member after the jet pump has been lowered into the wellbore. An upper portion of the concentric tubing string may be made up of preassembled sections of the inner and outer tubing members. One embodiment of the seal member is an inflatable packer utilizing evacuation fluid as the seal element inflation medium.
摘要翻译：使用连接到同心管柱的远端的喷射泵将沙子从水平和垂直井筒排出，所述喷射泵可插入井眼中并且可从地球表面或从密封构件延伸，在密封构件之间提供交叉流动路径，密封构件和同心管柱的内管构件。喷射泵包括多个喷嘴，用于将流体排出到井筒中以搅拌和夹带积聚的固体以进入泵入口腔，并且通过用作喷射泵功率的排出流体的一部分被推出泵流体。内管构件可以是在喷射泵已经下降到井筒中之后插入到外管构件中的可卷曲管。同心管柱的上部可以由内管和外管构件的预组装部分构成。密封构件的一个实施例是利用排出流体作为密封元件充气介质的充气封隔器。

6. 发明授权

US4653598A Drainhole drilling assembly with oriented elliptic drill collar 失效
标题翻译：排水钻孔组件带定向椭圆形钻铤
公开(公告)号：US4653598A
公开(公告)日：1987-03-31
申请号：US674377
申请日：1984-11-23
申请人： Frank J. Schuh , David D. Hearn
发明人： Frank J. Schuh , David D. Hearn
IPC分类号： E21B7/06 , E21B7/08 , E21B17/16
CPC分类号： E21B17/16 , E21B7/068
摘要： In deep drainhole drilling, a specially oriented drill collar of generally elliptic cross section is combined with a drill bit, a downhole motor and means adapted to deflect the bit to drill the build section of the drainhole curving at a medium angle of 2.degree. to 50.degree. per hundred feet. Preferably, the drill collar is at least twenty feet long. The elliptic drill collar is oriented in a manner such that the minor axis of the ellipse lies generally in the direction of the intended curve of the build interval. For the desired vertical build, this places the locus of the minimum axis of the ellipse toward the vertical and the locus of major axis toward the horizontal when the curved interval of the drainhole approaches horizontal. Preferably, the minor axis is at least twenty percent shorter than the major axis. An elliptic drill collar combined and oriented in this manner will produce significant torsional resistance because the bending moment required to deflect the collar about its minimum axis is significantly less than with a collar deflected about its major axis. This stabilizes the orientation of the assembly during drilling operations. The minor axis may be misaligned with direction of build to generate forces to counteract drill motor reactions. The deflecting means may be a bent motor housing, a bent sub, a bent elliptic drill collar or any other suitable deflecting means.
摘要翻译：在深井钻孔中，一般为椭圆截面的特殊定向钻铤与钻头，井下电机和井下电机相结合，适用于使钻头以2°至50°的中等角度钻出排水孔弯曲构造段 DEG每百英尺优选地，钻铤至少二十英尺长。椭圆形钻铤以这样的方式定向，使得椭圆的短轴通常位于构建间隔的预期曲线的方向上。对于所需的垂直构造，当排水孔的弯曲间隔接近水平时，将椭圆的最小轴线的轨迹朝垂直方向和长轴的轨迹朝水平方向放置。优选地，短轴比长轴至少短20％。以这种方式组合和定向的椭圆形钻铤将产生显着的扭转阻力，因为使套环围绕其最小轴线偏转所需的弯矩显着小于围绕其主轴线偏转的轴环。这在钻井操作期间稳定了组件的定向。短轴可能与构造方向不对准，以产生抵抗钻机电机反作用的力。偏转装置可以是弯曲的马达壳体，弯曲的副，弯曲的椭圆形钻铤或任何其它合适的偏转装置。

7. 发明授权

US08256535B2 Mill-through tailpipe liner exit and method of use thereof 有权
标题翻译：通孔式尾管衬管出口及其使用方法
公开(公告)号：US08256535B2
公开(公告)日：2012-09-04
申请号：US12635353
申请日：2009-12-10
申请人： David D. Hearn , Lamar L. Gantt , Howard Gober
发明人： David D. Hearn , Lamar L. Gantt , Howard Gober
IPC分类号： E21B7/04 , E21B7/08
CPC分类号： E21B7/061
摘要： A method and apparatus for forming a window in the wall of a tubular wellbore. In one embodiment described herein, a down hole apparatus for forming a window in the wall of a wellbore utilizing a plurality of tubing string sections and a thick tailpipe positioned at the down hole end of a tubing section.
摘要翻译：一种用于在管状井眼的壁中形成窗口的方法和装置。在本文所述的一个实施例中，一种用于在井眼的壁中形成窗口的井下设备，其利用多个管柱段和位于管段的井下端处的厚的尾管。

8. 发明授权

US06176327B1 Method and toolstring for operating a downhole motor 有权
标题翻译：用于操作井下电机的方法和工具串
公开(公告)号：US06176327B1
公开(公告)日：2001-01-23
申请号：US09307836
申请日：1999-05-10
申请人： David D. Hearn
发明人： David D. Hearn
IPC分类号： E21B708
CPC分类号： E21B29/06 , E21B21/103 , E21B34/103
摘要： A method and a toolstring for carrying out a downhole operation in a wellbore (e.g. milling a window in a well casing, drilling a lateral wellbore, etc.). The toolstring is comprised of a workstring and a downhole assembly which is comprised of a downhole, rotary motor (e.g. bent motor) for driving a cutting tool (e.g. carbide mill, drill bit, etc.) and a valve which is movable between a first position in which the flow of work fluid is blocked to the motor and a second position in which the fluid is now directed to the motor to thereby actuate the motor and drive the cutting tool. By initially blocking flow of fluid to the motor, certain functions can be performed within the wellbore (e.g. orienting the bent motor) before the motor begins any cutting within the wellbore.
摘要翻译：一种用于在井眼中进行井下操作的方法和工具串（例如铣削井套管中的窗口，钻井侧井眼等）。工具串由工作系统和井下组件组成，其包括井下，用于驱动切削工具（例如，硬质合金磨，钻头等）的旋转马达（例如弯曲马达）和可在第一工作流体流动被阻塞到马达的位置和第二位置，其中流体现在被引导到马达，从而致动马达并驱动切割工具。通过最初阻止流体流向电动机，在电动机开始在井筒内进行任何切割之前，可以在井筒内（例如定向弯曲的马达）执行某些功能。

9. 发明授权

US6032737A Method and system for increasing oil production from an oil well producing a mixture of oil and gas 失效
标题翻译：从油井生产石油和天然气混合物提高石油生产的方法和系统
公开(公告)号：US6032737A
公开(公告)日：2000-03-07
申请号：US56272
申请日：1998-04-07
申请人： Jerry L. Brady , Mark D. Stevenson , John M. Klein , James L. Cawvey , David D. Hearn
发明人： Jerry L. Brady , Mark D. Stevenson , John M. Klein , James L. Cawvey , David D. Hearn
IPC分类号： E21B43/38
CPC分类号： E21B43/385
摘要： A method and system for increasing oil production from an oil well producing a mixture of oil and gas at an elevated pressure through a wellbore penetrating an oil-bearing formation containing an oil-bearing zone and an injection zone, by separating at least a portion of the gas from the mixture of oil and gas to produce a separated gas and an oil-enriched mixture; utilizing energy from at least a portion of the mixture of oil and gas to compress at a surface at least a portion of the separated gas to produce a compressed gas having sufficient pressure to be injected into the injection zone; injecting the compressed gas into the injection zone; and recovering at least a major portion of the oil-enriched mixture.
摘要翻译：一种用于从油井中提高产油量的方法和系统，其通过穿透包含含油区域和注入区域的含油地层的井眼在高压下产生油和气的混合物，通过将至少一部分来自油和气的混合物的气体产生分离的气体和富油混合物; 利用来自油和气体的混合物的至少一部分的能量在表面压缩至少一部分分离的气体以产生具有足够压力的压缩气体以被注入到喷射区域中; 将压缩气体注入注入区域; 并回收至少大部分的富油混合物。

10. 发明授权

US5265675A Well conduit cutting and milling apparatus and method 失效
标题翻译：井管切割设备和方法
公开(公告)号：US5265675A
公开(公告)日：1993-11-30
申请号：US857212
申请日：1992-03-25
申请人： David D. Hearn , Charles M. Hightower , Stephen L. Ward , Charles D. Hailey
发明人： David D. Hearn , Charles M. Hightower , Stephen L. Ward , Charles D. Hailey
IPC分类号： E21B10/32 , E21B17/10 , E21B29/00
CPC分类号： E21B29/002 , E21B10/322 , E21B17/1021 , E21B29/005
摘要： A well conduit cutting and milling apparatus conveyable into and out of a well on coilable tubing using a tubing injection unit. The apparatus includes tubing or casing cutting arms which are radially extendable and retractable with respect to a cylindrical support body by pressure fluid operated pistons. The apparatus is made up of multiple end-to-end connected units including one which supports interchangeable cutting and milling arms and units which have radially extensible and retractable stabilizing arms which engage the inner wall of the tubing or casing to centralize and stabilize the apparatus during operation. The cutter and milling arms are modified for milling away a section of tubing by moving the apparatus in an upward or out of the well direction. The cutting elements are preferably cylindrical hard metal members which are supported on the arms for cutting away an end face of the tubing in a tangential direction of movement.
摘要翻译：一个井管切割和铣削设备可以使用管道注射单元输送到可流出的管道内的井中。该装置包括管或套管切割臂，其通过压力流体操作的活塞相对于圆柱形支撑体径向延伸和缩回。该设备由多个端对端连接的单元组成，包括一个支撑可互换的切割和铣削臂和单元的连接单元，该单元具有径向可伸缩的稳定臂，该稳定臂与管或壳体的内壁接合以集中和稳定装置操作。通过将设备向上或向外的方向移动，铣刀和铣刀被修改为铣削一部分管道。切割元件优选是圆柱形硬金属构件，其被支撑在臂上以沿切线方向切除管道的端面。

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