公开(公告)号：WO2003100209A1

公开(公告)日：2003-12-04

申请号：PCT/US2003/015366

申请日：2003-05-15

Applicant: WEATHERFORD/LAMB, INC.

Inventor： HOSIE, David ,  BANSAL, RK ,  CUTHBERTSON, Robert, L.

IPC: E21B21/10

CPC classification number: E21B21/08 ,  E21B21/10 ,  E21B33/03 ,  E21B2021/006

Abstract: A method and an apparatus for a dynamic mudcap drilling and well control comprises of a tubular body (185) disposable in a well casing (180) forming an outer annulus (155) there between and an inner annulus (150) formable between the body and a drill string (190) disposed therein. The apparatus further includes a sealing member (110) to seal the inner annulus at a location above a lower end of the tubular body and a pressure control member (150) disposable in the inner annulus at a location above the lower end of the tubular body. In another embodiment, the assembly uses two rotating control heads (RCH, RBOP) (110, 115), one at the top of the wellhead assembly in a conventional manner and a specially designed downhole unit. Thus, creating dual barriers. Finally, the assembly provides a method for allowing the well to produce hydrocarbons while tripping the drill string.

Abstract translation: 用于动态泥浆钻井和井控制的方法和设备包括：管状体（185），其在一个井壳体（180）中可弃置，形成在其间的外环（155）和内环（150）之间，该内环可形成在主体和 设置在其中的钻柱（190）。 所述装置还包括密封构件（110），用于在所述管状体的下端上方的位置处密封所述内环状空间;以及压力控制构件（150），其在所述内环形空间中在所述管状体的下端 。 在另一个实施例中，组件使用两个旋转控制头（RCH，RBOP）（110,115），一个在井口组件的顶部以常规方式和一个专门设计的井下单元。 因此，创造双重障碍。 最后，组件提供了一种允许井在产生钻杆的同时产生烃的方法。

公开(公告)号：WO2003102367A1

公开(公告)日：2003-12-11

申请号：PCT/US2003/016800

申请日：2003-05-29

Applicant: WEATHERFORD/LAMB, INC.

Inventor： GIROUX, Richard ,  HAUGEN, David, M. ,  HOSIE, David

IPC: E21B43/10

CPC classification number: E21B21/103 ,  E21B34/063 ,  E21B34/10 ,  E21B34/14 ,  E21B43/10

Abstract: An apparatus (100) for reducing pressure surges in a wellbore comprising a body having a bore (124) therethrough, the bore providing a fluid path for wellbore fluid between a first and second end of the body, at least one fluid path (122) permitting the wellbore fluid to pass between the bore and an annular area formed between an outer surface of the body and the walls of a wellbore therearound, and a number of closure mechanisms (110) whereby the at least one fluid path is selectively closable to the flow of fluid.

Abstract translation: 一种用于减少井眼中的压力波动的装置（100），其包括具有穿过其中的孔（124）的主体，所述孔为所述主体的第一和第二端之间的井筒流体提供流体路径，至少一个流体路径（122） 允许井筒流体在孔和在主体的外表面与其周围的井眼的壁之间形成的环形区域之间通过，以及多个闭合机构（110），由此至少一个流体路径可选择性地关闭到 流体流动。

公开(公告)号：WO2002090711A3

公开(公告)日：2002-11-14

申请号：PCT/GB2002/002012

申请日：2002-05-02

Applicant: WEATHERFORD/LAMB, INC. ,  HARDING, Richard, Patrick ,  TUMLIN, David, Moore ,  FUGATT, Gene, K, Sr. ,  HOSIE, David ,  LUKE, Mike

Inventor： TUMLIN, David, Moore ,  FUGATT, Gene, K, Sr. ,  HOSIE, David ,  LUKE, Mike

IPC: E21B33/134

Abstract: A method and apparatus for plugging a wellbore (10) in a trip saving manner includes a cement retainer (30) disposed on a run-in string (40) and a radially expanded perforating assembly disposed below the cement retainer. In a single run, the apparatus provides for perforating a wellbore and squeezing cement (8) through the perforations and into the formation (7) therearound. After the cement retainer is set, a firing head is actuated to cause the perforating gun to discharge. After perforations are formed, cement is introduced from the cement retainer into the isolated area and squeezed through the perforations. Thereafter, the run-in string disengages from the cement retainer leaving behind the plug formed. In yet another aspect, a firing head (70) capable of being actuated by different means is used to discharge the perforating assembly.

公开(公告)号：WO2003100208A1

公开(公告)日：2003-12-04

申请号：PCT/US2003/016686

申请日：2003-05-28

Applicant: WEATHERFORD/LAMB, INC.

Inventor： HOSIE, David ,  BANSAL, RK ,  MOYES, Peter, B.

IPC: E21B21/08

CPC classification number: E21B4/02 ,  E21B21/00 ,  E21B21/08 ,  E21B2021/006

Abstract: The present invention generally provides apparatus and methods for reducing the pressure of a circulating fluid in a wellbore. In one aspect of the invention an ECD (equivalent circulation density) reduction tool provides a means for drilling extended reach deep (ERD) wells with heavyweight drilling fluids by minimizing the effect of friction head on bottomhole pressure so that circulating density of the fluid is close to its actual density. With an ECD reduction tool located in the upper section of the well, the friction head is substantially reduced, which substantially reduces chances of fracturing a formation.

Abstract translation: 本发明通常提供用于降低井眼中循环流体的压力的装置和方法。 在本发明的一个方面，ECD（等效循环密度）减小工具提供了一种用于通过最小化摩擦头对井底压力的影响来钻出具有重型钻井液的延伸到达深（ERD）井的装置，使得流体的循环密度接近 到其实际密度。 使用位于井的上部的ECD减速工具，摩擦头基本上减小，这大大减少了压裂地层的机会。

公开(公告)号：WO2002063137A1

公开(公告)日：2002-08-15

申请号：PCT/GB2002/000240

申请日：2002-01-22

Applicant: WEATHERFORD/LAMB, INC. ,  HARDING, Richard, Patrick ,  HOSIE, David ,  ROESNER, Thomas

Inventor： HOSIE, David ,  ROESNER, Thomas

IPC: E21B47/12

CPC classification number: E21B47/09 ,  E21B47/121

Abstract: Methods and apparatus are provided that permit downhole tools to be run into a well along with logging tools that can log the downhole tools into place by real time transmission of the data to a surface location. In one aspect, an apparatus includes a telemetry tool, a logging tool in communication with the telemetry tool and a downhole tool.

Abstract translation: 提供了允许井下工具与测井工具一起运行的井下工具的方法和装置，该测井工具可以通过将数据实时传输到地面位置来将井下工具记录到位。 一方面，一种装置包括遥测工具，与遥测工具通信的测井工具和井下工具。

公开(公告)号：EP1358396A1

公开(公告)日：2003-11-05

申请号：EP02715534.0

申请日：2002-01-22

Applicant: WEATHERFORD/LAMB, INC.

Inventor： HOSIE, David ,  ROESNER, Thomas

IPC: E21B47/12 ,  E21B47/09

CPC classification number: E21B47/09 ,  E21B47/121

Abstract: Methods and apparatus are provided that permit downhole tools to be run into a well along with logging tools that can log the downhole tools into place by real time transmission of the data to a surface location. In one aspect, an apparatus includes a telemetry tool, a logging tool in communication with the telemetry tool and a downhole tool.

公开(公告)号：EP1358396B1

公开(公告)日：2008-11-12

申请号：EP02715534.0

申请日：2002-01-22

Applicant: WEATHERFORD/LAMB, INC.

Inventor： HOSIE, David ,  ROESNER, Thomas

IPC: E21B47/12 ,  E21B47/09

CPC classification number: E21B47/09 ,  E21B47/121

Abstract: Methods and apparatus are provided that permit downhole tools to be run into a well along with logging tools that can log the downhole tools into place by real time transmission of the data to a surface location. In one aspect, an apparatus includes a telemetry tool, a logging tool in communication with the telemetry tool and a downhole tool.