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    DRILL BIT WITH ADJUSTABLE SIDE FORCE
    1.
    发明申请
    DRILL BIT WITH ADJUSTABLE SIDE FORCE 审中-公开
    钻头与可调节的力

    公开(公告)号：WO2012030926A2

    公开(公告)日：2012-03-08

    申请号：PCT/US2011049913

    申请日：2011-08-31

    Applicant: BAKER HUGHES INC ,  HERBERG WOLFGANG E ,  MEISTER MATTHIAS

    Inventor： HERBERG WOLFGANG E ,  MEISTER MATTHIAS

    IPC: E21B7/04 ,  E21B7/08 ,  E21B10/54 ,  E21B47/024

    CPC classification number: E21B47/12 ,  E21B7/06 ,  E21B7/064 ,  E21B7/067 ,  E21B10/26 ,  Y10T29/49826

    Abstract: A drill bit according to one embodiment includes a center member configured to rotate at a first speed and an outer member disposed outside the center member, wherein the outer member is configured to rotate at a second speed. The drill bit also includes a first cutter disposed on the center member and a second cutter disposed on the outer member, wherein the first speed and second speeds are configured to control a resultant side force of the drill bit.

    Abstract translation: 根据一个实施例的钻头包括构造成以第一速度旋转的中心构件和设置在中心构件外部的外部构件，其中外部构件被构造成以第二速度旋转。 钻头还包括设置在中心构件上的第一切割器和设置在外部构件上的第二切割器，其中第一速度和第二速度被配置为控制钻头的合成侧向力。

    APPARATUS AND METHOD FOR CLEANING AND SEALING A WELL BOREHOLE PORTION FOR FORMATION EVALUATION
    2.
    发明申请
    APPARATUS AND METHOD FOR CLEANING AND SEALING A WELL BOREHOLE PORTION FOR FORMATION EVALUATION 审中-公开
    用于清洁和密封用于形成评估的井筒部分的装置和方法

    公开(公告)号：WO2004038178A9

    公开(公告)日：2004-09-30

    申请号：PCT/US0334103

    申请日：2003-10-24

    Applicant: BAKER HUGHES INC

    Inventor： MEISTER MATTHIAS ,  HERBERG WOLFGANG ,  KREUGER SVEN

    IPC: E21B37/00 ,  E21B49/10

    CPC classification number: E21B49/10 ,  E21B37/00

    Abstract: A borehole wall cleaning apparatus and method for obtaining an improved seal between a fluid sampling device and a portion of the borehole wall. Clean drilling fluid is pumped into a drilling tool using a mud pump. A fluid diverter in the tool diverts all or part of the clean drilling fluid through a port to clear a portion of a borehole wall. A sealing pad is moved against the clean portion. A sampling port is exposed to the sealed portion for sampling and/or testing fluid from the formation.

    Abstract translation: 一种井壁清洁装置和方法，用于获得流体取样装置与钻孔壁的一部分之间的改进的密封。 使用泥浆泵将清洁钻井液泵入钻井工具。 工具中的流体转向器将全部或部分清洁的钻井液通过一个端口转移以清除钻孔壁的一部分。 密封垫抵靠清洁部分移动。 采样口暴露于密封部分，用于从地层采样和/或测试流体。

    METHOD AND APPARATUS FOR FORMATION TESTING
    3.
    发明申请
    METHOD AND APPARATUS FOR FORMATION TESTING 审中-公开
    用于形成测试的方法和装置

    公开(公告)号：WO2008008424A8

    公开(公告)日：2009-02-12

    申请号：PCT/US2007015878

    申请日：2007-07-12

    Applicant: BAKER HUGHES INC

    Inventor： MEISTER MATTHIAS ,  NIEMEYER EICK ,  KISCHKAT TOBIAS

    IPC: G01V9/00

    CPC classification number: G01V11/00 ,  E21B49/008 ,  E21B49/10

    Abstract: A method for conducting a formation test includes providing a volume change model for a tool component, and providing a control program that uses the volume change model to estimate a system volume change resulting from a change in the tool component during a downhole operation. An apparatus for conducting a formation test includes a carrier, a formation test tool, a measurement device that estimates a change in a tool component during operation, and a processor that uses a volume change model to estimate a system volume change resulting at least in part from the change in the tool component during a downhole operation.

    Abstract translation: 用于进行形成测试的方法包括提供用于工具组件的体积变化模型，以及提供使用体积变化模型的控制程序，以估计在井下操作期间由于工具部件的变化导致的系统体积变化。 用于进行形成测试的装置包括载体，地层测试工具，估计操作期间工具部件的变化的测量装置，以及使用体积变化模型估计至少部分地产生的系统体积变化的处理器 在井下操作期间从工具部件的变化。

    APPARATUS AND METHOD FOR FORMATION TESTING WHILE DRILLING USING COMBINED ABSOLUTE AND DIFFERENTIAL PRESSURE MEASUREMENT
    4.
    发明申请
    APPARATUS AND METHOD FOR FORMATION TESTING WHILE DRILLING USING COMBINED ABSOLUTE AND DIFFERENTIAL PRESSURE MEASUREMENT 审中-公开
    使用组合绝对和差分压力测量在钻孔时形成试验的装置和方法

    公开(公告)号：WO0237072A3

    公开(公告)日：2003-06-05

    申请号：PCT/US0147604

    申请日：2001-10-26

    Applicant: BAKER HUGHES INC

    Inventor： KRUEGER VOLKER ,  MEISTER MATTHIAS ,  BERGER PER-ERIK

    IPC: E21B47/06

    CPC classification number: E21B47/06

    Abstract: A formation testing while drilling (FTWP) apparatus and method are provided for obtaining highly accurate pressure measurements in a well borehole using a combination of an absolute and a differential pressure sensor for obtaining absolute pressure measurments under high temperature gradients. A high accuracy quartz absolute pressure sensor is used during a period of constant temperature. A sensor output defines a start range for differential sensor, which has less absolute accuracy but is less susceptible to temperature effects of high temperature gradients.

    Abstract translation: 提供钻井时的地层测试（FTWP）装置和方法，用于使用绝对压差传感器和差压传感器的组合在井眼中获得高精度的压力测量值，以在高温梯度下获得绝对压力测量值。 在恒温期间使用高精度的石英绝对压力传感器。 传感器输出定义了差分传感器的起始范围，绝对精度较低，但对温度梯度的温度影响较小。

    METHODS TO DETECT FORMATION PRESSURE
    7.
    发明申请
    METHODS TO DETECT FORMATION PRESSURE 审中-公开
    检测压力的方法

    公开(公告)号：WO2004025079A3

    公开(公告)日：2004-05-13

    申请号：PCT/US0328726

    申请日：2003-09-12

    Applicant: BAKER HUGHES INC

    Inventor： KRUEGER SVEN ,  NIEMEYER EICK ,  MEISTER MATTHIAS ,  LEE JAEDONG

    IPC: E21B49/00 ,  E21B49/10

    CPC classification number: E21B49/10 ,  E21B49/008

    Abstract: Methods for estimating formation pressure from data taken during the drawdown cycle are presented. In one aspect, a method of determining a formation pressure during drawdown of a formation comprises sampling fluid from a formation using a downhole tool having a sample volume and a fluid sampling device. At least one time dependent parameter of interest related to the fluid is determined during the drawdown. The at least one time dependent parameter is analyzed using a plurality of calculation techniques to determine the formation pressure. The techniques include (i) a first pressure derivative technique; (ii) a second pressure derivative technique; (iii) a formation rate analysis technique; (iv) a dp/dt-ratio technique; and (v) a stepwise drawdown technique.

    Abstract translation: 提出了在降压循环期间从数据中估算地层压力的方法。 在一个方面，确定地层压降期间的地层压力的方法包括使用具有样品体积的井下工具和流体取样装置从地层采集流体。 在抽出期间确定与流体相关的至少一个与时间相关的参数。 使用多个计算技术来分析至少一个时间依赖参数以确定地层压力。 这些技术包括（i）第一压力衍生技术; （ii）第二压力衍生技术; （iii）形成速率分析技术; （iv）dp / dt比技术; 和（v）逐步缩小技术。

    HOLE ENLARGEMENT DRILLING DEVICE AND METHODS FOR USING SAME
    8.
    发明申请
    HOLE ENLARGEMENT DRILLING DEVICE AND METHODS FOR USING SAME 审中-公开
    孔式扩孔钻孔装置及其使用方法

    公开(公告)号：WO2010088339A3

    公开(公告)日：2010-11-18

    申请号：PCT/US2010022341

    申请日：2010-01-28

    Applicant: BAKER HUGHES INC ,  MEISTER MATTHIAS ,  HERBERG WOLFGANG ,  BOTHMANN GUNNAR ,  TREVIRANUS JOACHIM ,  FREYER CARSTEN ,  OPPELAAR HANS-ROBERT

    Inventor： MEISTER MATTHIAS ,  HERBERG WOLFGANG ,  BOTHMANN GUNNAR ,  TREVIRANUS JOACHIM ,  FREYER CARSTEN ,  OPPELAAR HANS-ROBERT

    IPC: E21B10/32 ,  E21B47/12

    CPC classification number: E21B7/28 ,  E21B7/04 ,  E21B7/06 ,  E21B7/062 ,  E21B10/26 ,  E21B10/32 ,  E21B10/322 ,  E21B44/00 ,  E21B44/005 ,  E21B47/022 ,  E21B47/08 ,  E21B47/09 ,  E21B47/12

    Abstract: A bottomhole assembly (BHA) coupled to a drill string includes one or more controllers, and a hole enlargement device that selectively enlarges the diameter of the wellbore formed by the drill bit. The hole enlargement device includes an actuation unit that may move extendable cutting elements o the hole enlargement device between a radially extended position and a radially retracted position. The actuation unit may be responsive to a signal that is transmitted from a downhole and/or a surface location. The hole enlargement device may also include one or more position sensors that transmit a position signal indicative of a radial position of the cutting elements. In an illustrative operating mode, one or more operating parameters of the hole enlargement device may be adjusted based on one or more measured parameters. This adjustment may be done in a closed-loop or automated fashion and/or by human personnel.

    Abstract translation: 耦合到钻柱的井底组件（BHA）包括一个或多个控制器，以及选孔地扩大由钻头形成的井眼的直径的孔扩大装置。 孔扩大装置包括致动单元，该致动单元可在径向延伸位置和径向缩回位置之间移动扩孔装置。 致动单元可以响应于从井下和/或表面位置传递的信号。 孔扩大装置还可以包括一个或多个位置传感器，其传送指示切割元件的径向位置的位置信号。 在说明性操作模式中，可以基于一个或多个测量参数来调整孔放大装置的一个或多个操作参数。 这种调整可以以闭环或自动化方式和/或由人员进行。

    DRAWDOWN APPARATUS AND METHOD FOR IN-SITU ANALYSIS OF FORMATION FLUIDS
    10.
    发明申请
    DRAWDOWN APPARATUS AND METHOD FOR IN-SITU ANALYSIS OF FORMATION FLUIDS 审中-公开
    用于形成流体的现场分析的抽象装置和方法

    公开(公告)号：WO0208570A8

    公开(公告)日：2002-08-29

    申请号：PCT/US0123011

    申请日：2001-07-20

    Applicant: BAKER HUGHES INC

    Inventor： KRUEGER VOLKER ,  MEISTER MATTHIAS ,  MICHAELS JOHN M ,  LEE JAEDONG ,  JONES STANLEY C

    IPC: E21B47/06 ,  E21B49/00 ,  E21B49/10 ,  G01V11/00

    CPC classification number: E21B49/10 ,  E21B47/06 ,  E21B49/008 ,  G01V11/002

    Abstract: An apparatus and method capable of incrementally decreasing the borehole pressure at a variable rate by controlling a test volume within the borehole. The system includes an incrementally controllable pump, closed loop feedback and a controller for drawing down the pressure of a test volume to a level just below formation pressure. This incremental drawdown system will significantly reduce the overall measurement time, thereby increasing drilling efficency and safety.

    Abstract translation: 一种能够通过控制钻孔内的测试体积而以可变速率递增地降低钻孔压力的装置和方法。 该系统包括可增量控制的泵，闭环反馈和用于将测试体积的压力降低至刚好低于地层压力的水平的控制器。 这种增量抽油系统将显着减少总体测量时间，从而提高钻井效率和安全性。

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