公开(公告)号：US08453723B2

公开(公告)日：2013-06-04

申请号：US12792402

申请日：2010-06-02

Applicant: Mitchell C. Smithson

Inventor： Mitchell C. Smithson

IPC: E21B29/02

CPC classification number: E21B23/00 ,  E21B34/06 ,  E21B34/066 ,  E21B34/10 ,  E21B41/00 ,  E21B47/12 ,  E21B47/121

Abstract: A method of selectively actuating from a remote location multiple downhole well tools includes: selecting one of the well tools for actuation by applying a voltage polarity to a set of conductors in the well, thereby operating a downhole pump connected to the well tool and displacing a piston of the well tool in one direction; and selecting the well tool for actuation by applying an opposite voltage polarity to the set of conductors, thereby operating the downhole pump and displacing the piston in an opposite direction. A system includes multiple electrical conductors in the well; and multiple control devices that control which of the well tools is selected for actuation in response to current flow in a set of the conductors, each of the control devices including at least one downhole pump which applies a pressure differential to an actuator of a respective one of the well tools.

Abstract translation: 从远程位置选择性地致动多个井下井工具的方法包括：通过向井中的一组导体施加电压极性来选择井工具中的一个以进行致动，从而操作连接到井工具的井下泵， 钻具在一个方向的活塞; 以及通过向该组导体施加相反的电压极性来选择用于致动的井具，从而操作井下泵并使活塞沿相反方向移动。 系统包括井中的多个电导体; 以及多个控制装置，其控制哪些井工具被选择用于响应于一组导体中的电流而致动，每个控制装置包括至少一个井下泵，其向相应的一个致动器施加压力差 的井工具。

公开(公告)号：US08322446B2

公开(公告)日：2012-12-04

申请号：US12555451

申请日：2009-09-08

Applicant: Mitchell C. Smithson ,  Timothy R. Tips

Inventor： Mitchell C. Smithson ,  Timothy R. Tips

IPC: E21B23/00 ,  E21B34/06

CPC classification number: E21B23/00 ,  E21B34/06 ,  E21B34/066 ,  E21B34/10 ,  E21B41/00 ,  E21B47/12 ,  E21B47/121

Abstract: A method of selectively actuating well tools includes the steps of: selecting a well tool for actuation by current flow in one direction through a set of conductors; and selecting another well tool for actuation by opposite current flow through the set of conductors. A system includes multiple control devices that control which well tool is selected for actuation in response to current flow in at least one conductor set. A current direction in the conductors selects a certain well tool for actuation. A method of using n conductors to selectively actuate n*(n−1) well tools includes the steps of: arranging the conductors into n*(n−1)/2 sets; connecting the conductor sets to respective groups of the well tools; and controlling direction of current flow through at least one of the sets of conductors, thereby selecting at least one well tool in the respective group of the well tools for actuation.

Abstract translation: 选择性地致动井工具的方法包括以下步骤：选择用于通过一组导体在一个方向上的电流流动致动的井工具; 以及选择另一个井工具以通过穿过该组导体的相反电流来致动。 系统包括多个控制装置，其控制响应于至少一个导体组中的电流而选择哪个井工具用于致动。 导体中的电流方向选择一个用于致动的井工具。 使用n导体选择性地驱动n *（n-1）阱工具的方法包括以下步骤：将导体布置成n *（n-1）/ 2组; 将导体组连接到井组的相应组; 以及控制电流流经所述导体组中的至少一个的方向，从而选择所述井组的相应组中的至少一个井工具用于致动。

公开(公告)号：US20110056288A1

公开(公告)日：2011-03-10

申请号：US12921741

申请日：2009-09-09

Applicant: Mitchell C. Smithson ,  Brett W. Bouldin

Inventor： Mitchell C. Smithson ,  Brett W. Bouldin

IPC: E21B47/00

CPC classification number: E21B23/00 ,  E21B34/06 ,  E21B34/066 ,  E21B34/10 ,  E21B41/00 ,  E21B47/12 ,  E21B47/121

Abstract: Position indication in multiplexed downhole well tools. A method of selectively actuating and indicating a position in a well includes selecting at least one well tool from among multiple well tools for actuation by flowing direct current in one direction through a set of conductors in the well, the well tool being deselected for actuation when direct current flows through the set of conductors an opposite direction; and detecting a varying resistance across the set of conductors as the selected well tool is actuated, the variation in resistance providing an indication of a position of a portion of the selected well tool.

Abstract translation: 复用井下井工具中的位置指示。 选择性地启动和指示井中的位置的方法包括从多个井工具中选择至少一个井工具，以通过在井中的一组导体沿一个方向流过直流电而致动，该井工具被取消选择用于在 直流电流以相反的方向流过该组导体; 以及当所选择的井具被致动时，检测穿过所述一组导体的变化的电阻，所述电阻的变化提供所选择的井具的一部分的位置的指示。

公开(公告)号：US20100051269A1

公开(公告)日：2010-03-04

申请号：US12543760

申请日：2009-08-19

Applicant: Mitchell C. Smithson ,  Brett W. Bouldin

Inventor： Mitchell C. Smithson ,  Brett W. Bouldin

IPC: E21B29/00 ,  E21B33/12

CPC classification number: E21B47/12

Abstract: Bypassing damaged lines in a well. A subterranean well system includes a circuit extending in the well to a well tool. A set of multiple redundant lines is provided at a location along the circuit. Each of the set of lines is capable of providing conductivity between portions of the circuit. A method of providing conductivity across a damaged portion of a circuit in a subterranean well includes the steps of: damaging at least one line of a set of redundant lines extending along a tubular string; and isolating the damaged at least one line from an undamaged portion of the circuit.

Abstract translation: 在井中绕过损坏的线。 地下井系统包括在井中延伸到井工具的电路。 沿着电路的一个位置提供一组多条冗余线路。 该组线路中的每一个能够在电路的各部分之间提供导电性。 在地下井中的电路的损坏部分提供导电性的方法包括以下步骤：损坏沿着管状线延伸的一组冗余线的至少一条线; 并且将损坏的至少一条线路与电路的未损坏部分隔离。

公开(公告)号：US08757278B2

公开(公告)日：2014-06-24

申请号：US12792298

申请日：2010-06-02

Applicant: Mitchell C. Smithson

Inventor： Mitchell C. Smithson

IPC: E21B23/00

CPC classification number: E21B23/00 ,  E21B34/06 ,  E21B34/066 ,  E21B34/10 ,  E21B41/00 ,  E21B47/12 ,  E21B47/121 ,  Y10T307/461

Abstract: Sneak path elimination in diode multiplexed control of downhole well tools. A system for selectively actuating multiple well tools includes a control device for each tool, a well tool being operable by selecting a respective control device; conductors connected to the control devices, which are selectable by applying a predetermined voltage across a respective predetermined pair of the conductors; and at least one lockout device for each control device, the lockout devices preventing current from flowing through the respective control devices when voltage across the respective predetermined pair of the conductors is less than a predetermined minimum. A method includes selecting a well tools for actuation by applying a predetermined minimum voltage to a set of conductors; and preventing actuation of another well tool when the predetermined minimum voltage is not applied across another set of conductors, at least one conductor being common to the two sets of conductors.

Abstract translation: 井下井工具二极管多路复用控制中的潜行路径消除。 用于选择性地致动多个井工具的系统包括用于每个工具的控制装置，井工具可通过选择相应的控制装置来操作; 连接到控制装置的导体，其可以通过在相应的预定对导体上施加预定电压来选择; 以及用于每个控制装置的至少一个锁定装置，所述锁定装置在相应的预定导体对上的电压小于预定的最小值时，防止电流流过各个控制装置。 一种方法包括通过对一组导体施加预定的最小电压来选择用于致动的井具; 并且当所述预定的最小电压不被施加在另一组导体上时，防止另一个井具的致动，至少一个导体是两组导体共同的。

公开(公告)号：US08590609B2

公开(公告)日：2013-11-26

申请号：US13040180

申请日：2011-03-03

Applicant: Mitchell C. Smithson ,  Joel D. Shaw

Inventor： Mitchell C. Smithson ,  Joel D. Shaw

IPC: E21B23/00

CPC classification number: E21B23/00 ,  E21B34/06 ,  E21B34/066 ,  E21B34/10 ,  E21B41/00 ,  E21B47/12 ,  E21B47/121 ,  Y10T307/461

Abstract: A system for selectively actuating multiple load devices, such as well tools, which are selectively actuated by applying a predetermined voltage across a predetermined pair of conductors. At least one lockout device is associated with each load device. The lockout device prevents current from flowing through the respective load device until voltage across the pair of the conductors exceeds a predetermined minimum. A method is provided for selecting well tools for actuation by applying a minimum voltage across a set of conductors and a lockout device. Leak paths are prevented from draining off current by the lockout devices. A system is provided for applying current to bidirectional load devices such as downhole pumps and motors.

Abstract translation: 用于选择性地致动多个负载装置（例如井具）的系统，其通过在预定导体对上施加预定电压来选择性地致动。 至少一个锁定装置与每个装载装置相关联。 锁定装置防止电流流过相应的负载装置，直到一对导体上的电压超过预定的最小值。 提供了一种用于通过在一组导体和锁定装置上施加最小电压来选择用于致动的井具的方法。 防止泄漏路径被锁定装置排出电流。 提供一种用于将电流施加到诸如井下泵和电动机的双向负载装置的系统。

公开(公告)号：US07836956B2

公开(公告)日：2010-11-23

申请号：US11626033

申请日：2007-01-23

Applicant: Mitchell C. Smithson ,  Timothy R. Tips ,  Corrado Giuliani

Inventor： Mitchell C. Smithson ,  Timothy R. Tips ,  Corrado Giuliani

IPC: E21B33/00 ,  E21B33/10

CPC classification number: E21B41/00 ,  E21B23/04 ,  E21B47/09 ,  F15B15/2838

Abstract: A method for positional control of an actuator includes applying pressure to both an input line and an output line connected to the actuator and then releasing a predetermined volume of fluid from the output line, thereby displacing a piston of the actuator a corresponding predetermined distance. A system for positional control of an actuator includes the actuator included in a well tool positioned in a well; the input line connected to the actuator and extending to a remote location; the output line connected to the actuator and extending to the remote location; and a fluid volume measurement device connected to the output line at the remote location. The fluid volume measurement device is operative to meter the predetermined volume of fluid from the output line.

Abstract translation: 一种用于致动器的位置控制的方法包括向输入线和连接到致动器的输出线两者施加压力，然后从输出线释放一定体积的流体，从而将致动器的活塞移动相应的预定距离。 一种用于致动器的位置控制的系统包括位于井中的井工具中的致动器; 输入线连接到致动器并延伸到远程位置; 输出线连接到执行器并延伸到远程位置; 以及连接到远程位置处的输出线的流体体积测量装置。 流体体积测量装置用于从输出线计量预定体积的流体。

公开(公告)号：US07730956B2

公开(公告)日：2010-06-08

申请号：US11751696

申请日：2007-05-22

Applicant: Mitchell C. Smithson

Inventor： Mitchell C. Smithson

IPC: E21B43/00

CPC classification number: H01R13/533 ,  E21B17/023 ,  E21B47/011

Abstract: Pressure balanced downhole connections. A well system includes a well tool, a conduit assembly connected to the well tool, the conduit assembly including a conduit and a line positioned within the conduit, the line being connected to the well tool for operation of the well tool, and a device for equalizing pressure between an interior and an exterior of the conduit, the device being positioned downhole. A method of isolating a line in a subterranean well from well fluids in the well includes the steps of: connecting a conduit assembly to a device for equalizing pressure between an interior and an exterior of the conduit assembly, the conduit assembly including a line installed within a conduit; and positioning the conduit assembly and pressure equalizing device in the well.

Abstract translation: 压力平衡井下连接。 井系统包括井工具，连接到井工具的管道组件，管道组件包括导管和定位在管道内的管线，该管线连接到井工具以用于井工具的操作，以及用于 均衡导管内部和外部之间的压力，该装置位于井下。 将井下的井与井中的井流隔离的方法包括以下步骤：将管道组件连接到装置，以均衡管道组件的内部和外部之间的压力，所述管道组件包括安装在管道组件内的管线 导管 并将导管组件和均压装置定位在井中。

公开(公告)号：US07520332B2

公开(公告)日：2009-04-21

申请号：US11481711

申请日：2006-07-06

Applicant: Mitchell C. Smithson

Inventor： Mitchell C. Smithson

IPC: E21B34/10

CPC classification number: E21B34/16 ,  E21B47/12 ,  Y10T137/0396

Abstract: A method and associated system for setting downhole control pressure. A method of setting a downhole control pressure includes the steps of: installing a pressure control system with a pressure source; connecting a proximal end of a line to the pressure source and a distal end to a well tool; and calibrating the system by applying an overshoot pressure to the proximal end, then sensing a settled pressure in the proximal end resulting from the overshoot pressure, and determining a mathematical relationship between the overshoot and settled pressures. A system for setting a downhole control pressure includes a pressure source, a pressure limiter and an interface for applying pressure to a proximal end of a control line and a well tool connected to a distal end of the control line. The well tool is operated in response to a predetermined settled pressure achieved at the distal end in response to an overshoot pressure being applied to the proximal end and the pressure limiter limiting application of pressure from the pressure source to the proximal end to the overshoot pressure.

Abstract translation: 一种用于设置井下控制压力的方法和相关系统。 设置井下控制压力的方法包括以下步骤：安装具有压力源的压力控制系统; 将管线的近端连接到压力源，将远端连接到井工具; 并通过向近端施加过冲压力来校准系统，然后感测由过冲压力导致的近端中的沉降压力，以及确定过冲和稳定压力之间的数学关系。 用于设置井下控制压力的系统包括压力源，压力限制器和用于向控制线的近端施加压力的接口和连接到控制线的远端的井具。 响应于施加到近端的过冲压力和压力限制器限制将压力从压力源施加到近端到过冲压力，响应于在远端实现的预定的沉降压力来操作井工具。

公开(公告)号：US07484566B2

公开(公告)日：2009-02-03

申请号：US11462077

申请日：2006-08-03

Applicant: Timothy R. Tips ,  Mitchell C. Smithson

Inventor： Timothy R. Tips ,  Mitchell C. Smithson

IPC: E21B28/00 ,  E21B34/10

CPC classification number: E21B21/103 ,  E21B34/066 ,  E21B41/0085 ,  E21B47/18

Abstract: A pulse width modulated downhole flow control. A downhole flow control system includes a flow control device with a flow restrictor which variably restricts flow through the flow control device. An actuator varies a vibratory motion of the restrictor to thereby variably control an average flow rate of fluid through the flow control device. A method of controlling flow in a well includes the steps of: installing a flow control device in the well, the flow control device including a flow restrictor which variably restricts flow through the flow control device; and displacing the restrictor to thereby pulse a flow rate of fluid through the flow control device.

Abstract translation: 脉宽调制井下流量控制。 井下流量控制系统包括具有流量限制器的流量控制装置，其可变地限制流过流量控制装置的流量。 致动器改变限制器的振动运动，从而可变地控制通过流量控制装置的流体的平均流速。 一种控制井中流量的方法包括以下步骤：在井中安装流量控制装置，流量控制装置包括可限制流过流量控制装置的流量的限流器; 并且使限流器移位，从而脉冲通过流量控制装置的流体的流速。