公开(公告)号：US07891417B2

公开(公告)日：2011-02-22

申请号：US12400241

申请日：2009-03-09

申请人： Min-Yi Chen ,  Bhavani Raghuraman ,  Ian Bryant ,  Michael G Supp ,  Jose Navarro

发明人： Min-Yi Chen ,  Bhavani Raghuraman ,  Ian Bryant ,  Michael G Supp ,  Jose Navarro

IPC分类号： E21B47/06

CPC分类号： G01V3/265 ,  E21B47/102 ,  E21B49/08

摘要： Earth formations are characterized by using an array of electrodes which can measure streaming potentials in the formation, and by interpreting the data obtained by the electrodes. The electrodes are placed on a wireline tool, a LWD tool, or in a fixed manner about a completed wellbore. The measured streaming potentials are generated by drilling with an overbearing pressure, slitting the mudcake in a borehole, acid injection, or any of various other manners which causes fluid movement. The data obtained is interpreted to locate fractures, measure formation permeability, estimate formation pressure, monitor drilling fluid loss, detect abnormal pressure, etc. Particularly, a streaming potential voltage transient having a double peak profile signifies the presence of a formation fracture.

摘要翻译： 地球构造的特征在于使用可以测量地层中的流动电位的电极阵列，以及通过解释由电极获得的数据。 电极被放置在有线工具，LWD工具上，或者以固定的方式围绕完成的井眼放置。 测量的流动电位是通过以超载压力钻孔，在井眼中分切泥饼，酸注射或导致流体运动的各种其他方式中的任何一种产生的。 所获得的数据被解释为定位裂缝，测量地层渗透率，估计地层压力，监测钻井液体损失，检测异常压力等。特别地，具有双峰曲线的流动电势电压瞬变表示存在地层断裂。

公开(公告)号：US07520324B2

公开(公告)日：2009-04-21

申请号：US10871446

申请日：2004-06-18

申请人： Min-Yi Chen ,  Bhavani Raghuraman ,  Ian Bryant ,  Michael G. Supp ,  Jose Navarro

发明人： Min-Yi Chen ,  Bhavani Raghuraman ,  Ian Bryant ,  Michael G. Supp ,  Jose Navarro

IPC分类号： E21B47/06

CPC分类号： G01V3/265 ,  E21B47/102 ,  E21B49/08

摘要： Earth formations are characterized by using an array of electrodes which can measure streaming potentials in the formation, and by interpreting the data obtained by the electrodes. The electrodes are placed on a wireline tool, a LWD tool, or in a fixed manner about a completed wellbore. The measured streaming potentials are generated by drilling with an overbearing pressure, slitting the mudcake in a borehole, acid injection, or any of various other manners which causes fluid movement. The data obtained is interpreted to locate fractures, measure formation permeability, estimate formation pressure, monitor drilling fluid loss, detect abnormal pressure, etc. Particularly, a streaming potential voltage transient having a double peak profile signifies the presence of a formation fracture.

摘要翻译： 地球构造的特征在于使用可以测量地层中的流动电位的电极阵列，以及通过解释由电极获得的数据。 电极被放置在有线工具，LWD工具上，或者以固定的方式围绕完成的井眼放置。 测量的流动电位是通过以超载压力钻孔，在井眼中分切泥饼，酸注射或导致流体运动的各种其他方式中的任何一种产生的。 所获得的数据被解释为定位裂缝，测量地层渗透率，估计地层压力，监测钻井液体损失，检测异常压力等。特别地，具有双峰曲线的流动电势电压瞬变表示存在地层断裂。

公开(公告)号：US08302687B2

公开(公告)日：2012-11-06

申请号：US12401405

申请日：2009-03-10

申请人： Min-Yi Chen ,  Bhavani Raghuraman ,  Ian Bryant ,  Michael G. Supp ,  Jose Navarro

发明人： Min-Yi Chen ,  Bhavani Raghuraman ,  Ian Bryant ,  Michael G. Supp ,  Jose Navarro

IPC分类号： E21B47/00 ,  E21B47/16

CPC分类号： E21B47/102 ,  E21B49/08 ,  G01V3/265

摘要： Earth formations are characterized by using an array of electrodes which can measure streaming potentials in the formation, and by interpreting the data obtained by the electrodes. The electrodes are placed on a wireline tool, a LWD tool, or in a fixed manner about a completed wellbore. The measured streaming potentials are generated by drilling with an overbearing pressure, slitting the mudcake in a borehole, acid injection, or any of various other manners which causes fluid movement. The data obtained is interpreted to locate fractures, measure formation permeability, estimate formation pressure, monitor drilling fluid loss, detect abnormal pressure, etc. Particularly, a streaming potential voltage transient having a double peak profile signifies the presence of a formation fracture.

摘要翻译： 地层的特征在于使用可以测量地层中的流动电位的电极阵列，以及通过解释由电极获得的数据。 电极被放置在有线工具，LWD工具上，或者以固定的方式围绕完成的井眼放置。 测量的流动电位是通过以超载压力钻孔，在井眼中分切泥饼，酸注射或导致流体运动的各种其他方式中的任何一种产生的。 所获得的数据被解释为定位裂缝，测量地层渗透率，估计地层压力，监测钻井液体损失，检测异常压力等。特别地，具有双峰曲线的流动电势电压瞬变表示存在地层断裂。

公开(公告)号：US07233150B2

公开(公告)日：2007-06-19

申请号：US10871856

申请日：2004-06-18

申请人： Min-Yi Chen ,  Bhavani Raghuraman ,  Ian Bryant ,  Michael G. Supp ,  Jose Navarro

发明人： Min-Yi Chen ,  Bhavani Raghuraman ,  Ian Bryant ,  Michael G. Supp ,  Jose Navarro

IPC分类号： G01V3/04 ,  G01V3/22 ,  G01V3/00

CPC分类号： G01V3/265

摘要： Earth formations are characterized by using an array of electrodes which can measure streaming potentials in the formation, and by interpreting the data obtained by the electrodes. The electrodes are placed on a wireline tool, a LWD tool, or in a fixed manner about a completed wellbore. The measured streaming potentials are generated by drilling with an overbearing pressure, slitting the mudcake in a borehole, acid injection, or any of various other manners which causes fluid movement. The data obtained is interpreted to locate fractures, measure formation permeability, estimate formation pressure, monitor drilling fluid loss, detect abnormal pressure, etc. Particularly, a streaming potential voltage transient having a double peak profile signifies the presence of a formation fracture.

摘要翻译： 地球构造的特征在于使用可以测量地层中的流动电位的电极阵列，以及通过解释由电极获得的数据。 电极被放置在有线工具，LWD工具上，或者以固定的方式围绕完成的井眼放置。 测量的流动电位是通过以超载压力钻孔，在井眼中分切泥饼，酸注射或导致流体运动的各种其他方式中的任何一种产生的。 所获得的数据被解释为定位裂缝，测量地层渗透率，估计地层压力，监测钻井液体损失，检测异常压力等。特别地，具有双峰曲线的流动电势电压瞬变表示存在地层断裂。

公开(公告)号：US06978672B1

公开(公告)日：2005-12-27

申请号：US10871854

申请日：2004-06-18

申请人： Min-Yi Chen ,  Bhavani Raghuraman ,  Ian Bryant ,  Michael G. Supp ,  Jose Navarro

发明人： Min-Yi Chen ,  Bhavani Raghuraman ,  Ian Bryant ,  Michael G. Supp ,  Jose Navarro

IPC分类号： E21B47/00 ,  E21B49/00 ,  G01N15/08 ,  G01V3/26

CPC分类号： G01V3/265

摘要： Earth formations are characterized by using an array of electrodes which can measure streaming potentials in the formation, and by interpreting the data obtained by the electrodes. The electrodes are placed on a wireline tool, a LWD tool, or in a fixed manner about a completed wellbore. The measured streaming potentials are generated by drilling with an overbearing pressure, slitting the mudcake in a borehole, acid injection, or any of various other manners which causes fluid movement. The data obtained is interpreted to locate fractures, measure formation permeability, estimate formation pressure, monitor drilling fluid loss, detect abnormal pressure, etc. Particularly, a streaming potential voltage transient having a double peak profile signifies the presence of a formation fracture.

摘要翻译： 地球构造的特征在于使用可以测量地层中的流动电位的电极阵列，以及通过解释由电极获得的数据。 电极被放置在有线工具，LWD工具上，或者以固定的方式围绕完成的井眼放置。 测量的流动电位是通过以超载压力钻孔，在井眼中分切泥饼，酸注射或导致流体运动的各种其他方式中的任何一种产生的。 所获得的数据被解释为定位裂缝，测量地层渗透率，估计地层压力，监测钻井液体损失，检测异常压力等。特别地，具有双峰曲线的流动电势电压瞬变表示存在地层断裂。

公开(公告)号：US20090166024A1

公开(公告)日：2009-07-02

申请号：US12400241

申请日：2009-03-09

申请人： Min-Yi Chen ,  Bhavani Raghuraman ,  Ian Bryant ,  Michael G. Supp ,  Jose Navarro

发明人： Min-Yi Chen ,  Bhavani Raghuraman ,  Ian Bryant ,  Michael G. Supp ,  Jose Navarro

IPC分类号： E21B47/00 ,  E21B43/00

CPC分类号： G01V3/265 ,  E21B47/102 ,  E21B49/08

摘要： Earth formations are characterized by using an array of electrodes which can measure streaming potentials in the formation, and by interpreting the data obtained by the electrodes. The electrodes are placed on a wireline tool, a LWD tool, or in a fixed manner about a completed wellbore. The measured streaming potentials are generated by drilling with an overbearing pressure, slitting the mudcake in a borehole, acid injection, or any of various other manners which causes fluid movement. The data obtained is interpreted to locate fractures, measure formation permeability, estimate formation pressure, monitor drilling fluid loss, detect abnormal pressure, etc. Particularly, a streaming potential voltage transient having a double peak profile signifies the presence of a formation fracture.

摘要翻译： 地球构造的特征在于使用可以测量地层中的流动电位的电极阵列，以及通过解释由电极获得的数据。 电极被放置在有线工具，LWD工具上，或者以固定的方式围绕完成的井眼放置。 测量的流动电位是通过以超载压力钻孔，在井眼中分切泥饼，酸注射或导致流体运动的各种其他方式中的任何一种产生的。 所获得的数据被解释为定位裂缝，测量地层渗透率，估计地层压力，监测钻井液体损失，检测异常压力等。特别地，具有双峰曲线的流动电势电压瞬变表示存在地层断裂。

公开(公告)号：US07243718B2

公开(公告)日：2007-07-17

申请号：US10872112

申请日：2004-06-18

申请人： Min-Yi Chen ,  Bhavani Raghuraman ,  Ian Bryant ,  Michael G. Supp ,  Jose Navarro

发明人： Min-Yi Chen ,  Bhavani Raghuraman ,  Ian Bryant ,  Michael G. Supp ,  Jose Navarro

IPC分类号： E21B47/00

CPC分类号： G01V3/265

摘要： Earth formations are characterized by using an array of electrodes which can measure streaming potentials in the formation, and by interpreting the data obtained by the electrodes. The electrodes are placed on a wireline tool, a LWD tool, or in a fixed manner about a completed wellbore. The measured streaming potentials are generated by drilling with an overbearing pressure, slitting the mudcake in a borehole, acid injection, or any of various other manners which causes fluid movement. The data obtained is interpreted to locate fractures, measure formation permeability, estimate formation pressure, monitor drilling fluid loss, detect abnormal pressure, etc. Particularly, a streaming potential voltage transient having a double peak profile signifies the presence of a formation fracture.

摘要翻译： 地球构造的特征在于使用可以测量地层中的流动电位的电极阵列，以及通过解释由电极获得的数据。 电极被放置在有线工具，LWD工具上，或者以固定的方式围绕完成的井眼放置。 测量的流动电位是通过以超载压力钻孔，在井眼中分切泥饼，酸注射或导致流体运动的各种其他方式中的任何一种产生的。 所获得的数据被解释为定位裂缝，测量地层渗透率，估计地层压力，监测钻井液体损失，检测异常压力等。特别地，具有双峰曲线的流动电势电压瞬变表示存在地层断裂。

公开(公告)号：US20090242274A1

公开(公告)日：2009-10-01

申请号：US12401405

申请日：2009-03-10

申请人： Min-Yi Chen ,  Bhavani Raghuraman ,  Ian Bryant ,  Michael G. Supp ,  Jose Navarro

发明人： Min-Yi Chen ,  Bhavani Raghuraman ,  Ian Bryant ,  Michael G. Supp ,  Jose Navarro

IPC分类号： E21B47/00 ,  E21B47/12 ,  G01V3/34 ,  G06F19/00

CPC分类号： E21B47/102 ,  E21B49/08 ,  G01V3/265

摘要： Earth formations are characterized by using an array of electrodes which can measure streaming potentials in the formation, and by interpreting the data obtained by the electrodes. The electrodes are placed on a wireline tool, a LWD tool, or in a fixed manner about a completed wellbore. The measured streaming potentials are generated by drilling with an overbearing pressure, slitting the mudcake in a borehole, acid injection, or any of various other manners which causes fluid movement. The data obtained is interpreted to locate fractures, measure formation permeability, estimate formation pressure, monitor drilling fluid loss, detect abnormal pressure, etc. Particularly, a streaming potential voltage transient having a double peak profile signifies the presence of a formation fracture.

摘要翻译： 地球构造的特征在于使用可以测量地层中的流动电位的电极阵列，以及通过解释由电极获得的数据。 电极被放置在有线工具，LWD工具上，或者以固定的方式围绕完成的井眼放置。 测量的流动电位是通过以超载压力钻孔，在井眼中分切泥饼，酸注射或导致流体运动的各种其他方式中的任何一种产生的。 所获得的数据被解释为定位裂缝，测量地层渗透率，估计地层压力，监测钻井液体损失，检测异常压力等。特别地，具有双峰曲线的流动电势电压瞬变表示存在地层断裂。

公开(公告)号：US07178392B2

公开(公告)日：2007-02-20

申请号：US10644284

申请日：2003-08-20

申请人： Brindesh Dhruva ,  Elizabeth B. Dussan, V. ,  Aaron Jacobson ,  Jagdish Shah ,  Stephane Pierre ,  Fredrick A. Jenet ,  Michael G. Supp ,  Jennifer Trittschuh

发明人： Brindesh Dhruva ,  Elizabeth B. Dussan, V. ,  Aaron Jacobson ,  Jagdish Shah ,  Stephane Pierre ,  Fredrick A. Jenet ,  Michael G. Supp ,  Jennifer Trittschuh

IPC分类号： E21B47/06

CPC分类号： E21B49/10 ,  E21B49/008

摘要： A method for determining formation fluid pressure in earth formation surrounding a borehole wall uses a downhole probe coupled to a variable-volume cavity. The probe is driven into contact with formation at the borehole wall. The method includes expanding the volume of the cavity during a first period of time to establish fluid communication between tool fluid and formation fluid, by withdrawing a minimal amount of fluid from the formation. During a second period of time the tool pressure is allowed to equilibrate to formation pressure. When pressure equilibrium is established, formation fluid pressure is set equal to tool pressure. A preferred embodiment includes terminating expanding the volume of the cavity on detecting a break in the mud cake seal. An associated formation pressure tester tool includes an elongated body; a probe defining a formation fluid inflow aperture, an electromechanical assembly defining a variable-volume cavity, a pretest flow line coupling the aperture to the cavity, a pressure sensor coupled to the cavity; and downhole electronic means for controlling the expansion of the volume of the cavity.

摘要翻译： 用于确定围绕井壁的地层中的地层流体压力的方法使用连接到可变体积腔的井下探针。 探头被驱动与钻孔壁的形成接触。 该方法包括在第一时间段内膨胀空腔的体积，以通过从地层中抽取最少量的流体来建立工具流体和地层流体之间的流体连通。 在第二时间段期间，允许工具压力平衡到地层压力。 当建立压力平衡时，地层流体压力设定为等于工具压力。 优选实施例包括在检测到泥饼密封件中的断裂时终止膨胀空腔的体积。 相关联的地层压力测试仪工具包括细长体; 限定地层流体流入孔的探针，限定可变体积腔的机电组件，将孔耦合到空腔的预测流线，耦合到空腔的压力传感器; 以及井下电子装置，用于控制空腔体积的膨胀。