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    CONTROL OF MULTIPLE HYDRAULIC CHOKES IN MANAGED PRESSURE DRILLING
    1.
    发明申请
    CONTROL OF MULTIPLE HYDRAULIC CHOKES IN MANAGED PRESSURE DRILLING 审中-公开
    多级液压砧在管理压力钻井中的控制

    公开(公告)号：WO2016111979A8

    公开(公告)日：2017-07-13

    申请号：PCT/US2016012134

    申请日：2016-01-05

    Applicant: WEATHERFORD TECH HOLDINGS LLC

    Inventor： DILLARD WALTER S ,  NORTHAM PAUL R

    IPC: E21B21/01

    CPC classification number: E21B21/08 ,  E21B21/01 ,  E21B2021/006

    Abstract: An assembly is used with a remote source of hydraulic power (120) to control flow of wellbore fluid in a drilling system. At least one choke (110A,B) is operable to control the flow of the fluid to other portions of the system. At least one hydraulic actuator (112A,B) disposed with the choke actuates operation of the choke in response to the hydraulic power. At least one control valve (140A,B) disposed with the choke controls supply of the hydraulic power to and controls return of the hydraulic power from the actuator. An accumulator (126) can be disposed with the choke and coupled to the supply upstream of the control valve. The control valve can couple to the actuator with a pair of pilot-operated check valves (142) disposed in fluid communication between the control valve and the actuator. A stage tank (122) and stage pump (124) can be disposed with the choke. The tank receives the return from the control valve, and the stage pump can pump the return from the stage tank to the source.

    Abstract translation: 组件与远程液压动力源（120）一起使用以控制钻井系统中的井筒流体的流动。 至少一个扼流器（110A，B）可操作以控制流体流向系统的其他部分。 与扼流器一起设置的至少一个液压致动器（112A，B）响应于液压动力而致动扼流器的操作。 与扼流器一起设置的至少一个控制阀（140A，B）控制液压动力的供应并且控制来自致动器的液压动力的返回。 蓄能器（126）可以与扼流器一起设置，并连接到控制阀上游的供应。 控制阀可以通过一对在控制阀和致动器之间流体连通设置的先导式止回阀（142）连接到致动器。 一个阶段罐（122）和阶段泵（124）可与扼流器一起布置。 油箱接收来自控制阀的返回，并且级泵可以将级油箱的返回泵送到油源。

    THROUGH TUBING PERPENDICULAR BORING
    3.
    发明申请
    THROUGH TUBING PERPENDICULAR BORING 审中-公开
    通过管道连续镗孔

    公开(公告)号：WO2014138301A3

    公开(公告)日：2014-11-06

    申请号：PCT/US2014020906

    申请日：2014-03-05

    Applicant: BOAZ ENERGY LLC

    Inventor： SMITH DAVID RANDOLPH ,  EVES KARAN ELAINE

    IPC: E21B7/08

    CPC classification number: E21B10/66 ,  E21B7/062 ,  E21B2021/006

    Abstract: Methods for extracting more fluids from oil and gas wells reservoirs than is currently possible using the current art of drilling and hydraulic fracturing wells may be accomplished with methods and apparatuses to directionally control the construction of a plurality of substantially perpendicular boreholes from a common wellbore at a plurality of positions along said common wellbore. One method may include drilling a plurality of the substantially perpendicular boreholes off a previously constructed common wellbore using underbalanced methods and producing the reservoir fluids while drilling the substantially perpendicular boreholes. In some methods, injection of fluids from surface into subterranean reservoirs may be used for the purpose of sequestering fluids or recovering fluids to the surface.

    Abstract translation: 使用目前的钻井和水力压裂井的技术从油气井和油气井中提取更多的流体的方法可以通过方法和装置来实现，所述方法和装置用于定向地控制多个基本上垂直的钻孔的结构， 沿着所述普通井筒的多个位置。 一种方法可以包括使用欠平衡方法从先前构造的普通井筒钻出多个基本上垂直的钻孔，并在钻出基本上垂直的钻孔的同时产生储层流体。 在一些方法中，将流体从表面注入地下储层可用于隔离流体或将流体回收到表面。

    APPARATUS AND METHOD FOR CONTROLLING PRESSURE IN A BOREHOLE
    4.
    发明申请
    APPARATUS AND METHOD FOR CONTROLLING PRESSURE IN A BOREHOLE 审中-公开
    用于控制井筒内压力的装置和方法

    公开(公告)号：WO2013178295A9

    公开(公告)日：2014-01-23

    申请号：PCT/EP2012071043

    申请日：2012-10-24

    Applicant: STATOIL PETROLEUM AS

    Inventor： KJOESNES IVAR ,  ROLLAND NILS LENNART

    IPC: E21B33/08 ,  E21B21/00 ,  E21B21/08 ,  E21B43/12

    CPC classification number: E21B21/08 ,  E21B21/001 ,  E21B33/085 ,  E21B43/12 ,  E21B2021/006

    Abstract: There is described a technique for drilling and controlling the fluid pressure of a borehole (2, 102) during drilling of the borehole. In embodiments of the invention, drill pipe (5) may be arranged in said borehole, the pipe being configured to provide drilling fluid in the borehole. Sealing means (14, 18, 114, 118) may be provided and arranged to sealingly abut an outer surface of the drill pipe to separate said drilling fluid in the borehole on a first side of the sealing means from a column of fluid on a second side of the sealing means. Furthermore, a subsea pump arrangement (12, 112) may be arranged under a sea surface where it receives a flow of said drilling fluid from the borehole. The pump arrangement can operate to pump drilling fluid out of the pump arrangement, and generate a fluid pressure in said drilling fluid at a location upstream of the pump arrangement, said generated pressure being less than or equal to the hydrostatic pressure of said column of fluid on said second side of the sealing means.

    Abstract translation: 描述了在钻孔期间钻井和控制井眼（2,102）的流体压力的技术。 在本发明的实施例中，钻杆（5）可以布置在所述钻孔中，所述管被配置为在钻孔中提供钻井流体。 密封装置（14,18,114,118）可以设置和布置成密封地邻接钻杆的外表面，以将密封装置的第一侧上的钻孔中的钻井流体与第二 侧密封装置。 此外，海底泵装置（12,112）可以设置在海面下方，从而从井眼接收钻井液的流动。 所述泵装置可操作以将钻井液体泵出所述泵装置，并且在所述泵装置的上游位置处在所述钻井液中产生流体压力，所述产生的压力小于或等于所述流体柱的流体静压力 在所述密封装置的所述第二侧上。

    RESERVOIR WELLBORE FLUID
    5.
    发明申请
    RESERVOIR WELLBORE FLUID 审中-公开
    储存井筒

    公开(公告)号：WO2014011592A1

    公开(公告)日：2014-01-16

    申请号：PCT/US2013/049656

    申请日：2013-07-09

    Applicant: M-I L.L.C.

    Inventor： LUYSTER, Mark ,  GRAY, Leigh ,  METTATH, Sashikumar ,  YOUNG, Steven ,  STAMATAKIS, Emanuel

    IPC: C09K8/34 ,  C09K8/03 ,  C09K8/52 ,  E21B43/22

    CPC classification number: C09K8/32 ,  C09K8/03 ,  C09K8/34 ,  C09K8/502 ,  C09K8/52 ,  C09K8/64 ,  C09K8/82 ,  E21B19/22 ,  E21B21/08 ,  E21B2021/006

    Abstract: In one aspect, embodiments disclosed herein relate to an oil-based wellbore fluid. The oil-based wellbore fluid may include an oleaginous liquid and a surface-modified precipitated silica, wherein the surface-modified precipitated silica comprises a lipophilic coating. In another aspect, embodiments disclosed herein relate to a method of drilling or servicing a well. The method may include circulating a wellbore fluid, such as that described in the paragraph above, into a wellbore, and recovering at least a portion of the wellbore fluid from the wellbore.

    Abstract translation: 在一个方面，本文公开的实施例涉及油基井筒流体。 油基井筒流体可以包括含油液体和表面改性的沉淀二氧化硅，其中表面改性沉淀二氧化硅包括亲脂性涂层。 在另一方面，本文公开的实施例涉及钻井或维修井的方法。 该方法可以包括将诸如上述段落中的井眼流体​​循环到井眼中，并从井眼回收至少一部分井筒流体。

    DUAL CIRCULATION DRILLING SYSTEM
    6.
    发明申请
    DUAL CIRCULATION DRILLING SYSTEM 审中-公开
    双循环钻井系统

    公开(公告)号：WO2013106890A1

    公开(公告)日：2013-07-25

    申请号：PCT/AU2013/000044

    申请日：2013-01-21

    Applicant: SPEER, Ian ,  STRANGE, Warren

    Inventor： SPEER, Ian ,  STRANGE, Warren

    IPC: E21B21/12 ,  E21B17/18 ,  E21B7/18 ,  E21B4/14

    CPC classification number: E21B21/002 ,  E21B1/00 ,  E21B4/14 ,  E21B7/18 ,  E21B17/1078 ,  E21B17/18 ,  E21B21/08 ,  E21B21/103 ,  E21B21/12 ,  E21B2021/006

    Abstract: A ground drill system (10) has a drill string 14 which forms first and second mutually isolated fluid paths (16 and 18) respectively. The drill string (14) has an up hole end (20) coupled to a dual circulation rotation head (22) and a down hole end (24) which is coupled to a drilling tool (12). The drilling tool (12) is operated by the flow of fluid delivered through the first flow path (16). A second fluid outlet (26) is provided intermediate the up hole end (20) and the drilling tool (12). The outlet (26) is in fluid communication with the second fluid flow path (18) and located a constant or fixed distance from the drilling toll (2). The second fluid outlet (26) discharges a flushing fluid flowing through the flushing flow path (18) into a hole being drilled by the drilling system (10). The rotation head (22) provides torque to the drill string (14) and thus the drilling tool (12).

    Abstract translation: 地钻系统（10）具有分别形成第一和第二相互隔离的流体路径（16和18）的钻柱14。 钻柱（14）具有联接到双循环旋转头（22）的上孔端（20）和联接到钻具（12）的井下端（24）。 钻探工具（12）由通过第一流动路径（16）输送的流体的流动来操作。 第二流体出口（26）设置在上孔端（20）和钻孔工具（12）的中间。 出口（26）与第二流体流动路径（18）流体连通，并且与钻井收费（2）定位在恒定或固定的距离。 第二流体出口（26）将流过冲洗流路（18）的冲洗流体排放到由钻井系统（10）钻孔的孔中。 旋转头（22）向钻柱（14）提供扭矩，从而为钻具（12）提供扭矩。

    METHD FOR PERFORATING A WELLBORE IN LOW UNDERBALANCE SYSTEMS
    7.
    发明申请
    METHD FOR PERFORATING A WELLBORE IN LOW UNDERBALANCE SYSTEMS 审中-公开
    METHD用于在低负荷系统中执行井筒

    公开(公告)号：WO2010065552A3

    公开(公告)日：2010-09-02

    申请号：PCT/US2009066277

    申请日：2009-12-01

    Applicant: GEODYNAMICS INC ,  BELL MATTHEW ROBERT GEORGE ,  WESSON DAVID S ,  CLARK NATHAN GARRET ,  HARDESTY JOHN THOMAS

    Inventor： BELL MATTHEW ROBERT GEORGE ,  WESSON DAVID S ,  CLARK NATHAN GARRET ,  HARDESTY JOHN THOMAS

    IPC: E21B43/263 ,  E21B43/116

    CPC classification number: E21B43/117 ,  E21B21/00 ,  E21B2021/006

    Abstract: By substantially eliminating the crushed zone surrounding a perforation tunnel and expelling debris created upon activation of a shaped charge with, first and second successive explosive events, the need for surge flow associated with underbalanced perforating techniques is eliminated. The break down of the rock fabric at the tunnel tip, caused by the near- instantaneous overpressure generated within the tunnel, further creates substantially debris-free tunnels in conditions of limited or no underbalance as well as in conditions of overbalance.

    Abstract translation: 通过基本上消除穿孔隧道周围的破碎区域，并且排除了在使用第一和第二连续爆炸事件激活成形装料时产生的碎屑，消除了与欠平衡穿孔技术相关联的浪涌流的需要。 由隧道内产生的近瞬时超压造成的隧道尖端的岩石织物破裂，在有限或没有不平衡的条件下以及在过度平衡的条件下，进一步产生了基本上无碎屑的隧道。

    DRILL STRING FLOW CONTROL VALVES AND METHODS
    8.
    发明申请
    DRILL STRING FLOW CONTROL VALVES AND METHODS 审中-公开
    钻杆流量控制阀和方法

    公开(公告)号：WO2007124097A2

    公开(公告)日：2007-11-01

    申请号：PCT/US2007/009737

    申请日：2007-04-20

    Applicant: DUAL GRADIENT SYSTEMS, L.L.C. ,  DE BOER, Luc

    Inventor： DE BOER, Luc

    IPC: E21B41/00

    CPC classification number: E21B21/10 ,  E21B2021/006

    Abstract: Drill string flow control valves and more particularly, drill string flow control valves for prevention of u-tubing of fluid flow in drill strings are provided. Drill string flow control valves may comprise a valve housing, a valve sleeve axially movable within a valve housing from a closed position to an open position, a biasing mechanism for biasing the valve sleeve into the closed position, and a plurality of pressure ports for allowing a differential pressure to be exerted on the valve sleeve. The differential pressure exerted on the valve sleeve may be the result of an upstream pressure and a downstream pressure. By allowing a differential pressure resulting from a fluid flow to act on the valve sleeve, u- tubing in a drill string can be prevented or substantially reduced. Methods of use are also provided.

    Abstract translation: 钻杆流量控制阀，更具体地说，提供了用于防止钻柱中的流体流动的U形管的钻柱流量控制阀。 钻杆流量控制阀可以包括阀壳体，可在阀壳体内从关闭位置轴向移动到打开位置的阀套筒，用于将阀套件偏置到关闭位置的偏置机构，以及多个压力端口，用于允许 施加在阀套上的压差。 施加在阀套上的压差可能是上游压力和下游压力的结果。 通过允许由流体流动产生的压力作用在阀套上，可以防止或显着减少钻柱中的管道。 还提供了使用方法。

    SYSTEMS AND METHODS FOR USING AN UMBILICAL
    9.
    发明申请
    SYSTEMS AND METHODS FOR USING AN UMBILICAL 审中-公开
    使用脐带血的系统和方法

    公开(公告)号：WO2007103707A2

    公开(公告)日：2007-09-13

    申请号：PCT/US2007/063037

    申请日：2007-03-01

    Applicant: SHELL OIL COMPANY ,  SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. ,  BAYKO, Tim ,  MASON, David Leslie

    Inventor： BAYKO, Tim ,  MASON, David Leslie

    IPC: E21B15/02

    CPC classification number: E21B15/02 ,  E21B17/01 ,  E21B19/22 ,  E21B33/035 ,  E21B33/038 ,  E21B2021/006

    Abstract: A subsea well system comprising a vessel located in a body of water; a blowout preventer connected to said vessel, the blowout preventer defining a top of the system; a riser comprising a first end connected to said blowout preventer at the top of the system, and a second end connected to a wellhead of a wellbore at the bottom of the system; a seal located within the riser below the blowout preventer and above the wellhead; and an umbilical within the riser connected to the vessel at a first end, and connected to the seal at a second end.

    Abstract translation: 一种海底井系统，包括位于水体中的船舶; 连接到所述容器的防喷器，所述防喷器限定所述系统的顶部; 提升器，其包括连接到系统顶部处的所述防喷器的第一端和连接到系统底部的井筒的井口的第二端; 位于井筒防喷器下方和井口之上的提升管内的密封件; 以及在第一端连接到容器的提升管内的脐带，并且在第二端连接到密封件。

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