公开(公告)号：US07857066B2

公开(公告)日：2010-12-28

申请号：US12024823

申请日：2008-02-01

Applicant: Rocco DiFoggio ,  Roderick A. Larson ,  Jeffrey R. Honekamp

Inventor： Rocco DiFoggio ,  Roderick A. Larson ,  Jeffrey R. Honekamp

IPC: E21B23/03

CPC classification number: H02N2/10 ,  E21B23/00 ,  E21B34/066 ,  F04B17/003 ,  F04B47/00 ,  G01J3/06 ,  G01J2003/1243 ,  G01V1/145 ,  G01V1/38 ,  G01V11/005 ,  H02N2/101 ,  Y02A90/36

Abstract: In one aspect, an apparatus for use in a wellbore is provided that may include: a tool configured to be conveyed into the wellbore by a conveying member; and an electro-active polymer device (“EAP device”) configured to connect the tool to the conveying member when the EAP device is in a first mode or position and disconnect the tool from the conveying member when the EAP device is in a second mode or position. In another aspect, a method for releasing a tool in a wellbore is provided which includes: releasably connecting an EAP device to a conveying member and the tool; conveying the tool in the wellbore with the conveying member; and electrically activating the EAP device to release the tool from the conveying member in the wellbore.

Abstract translation: 在一个方面，提供了一种用于井眼的装置，其可以包括：构造成通过传送构件输送到井眼中的工具; 以及当所述EAP设备处于第一模式或位置并且当所述EAP设备处于第二模式时将所述工具从所述传送构件断开时，被配置为将所述工具连接到所述传送构件的电活性聚合物设备（“EAP设备” 或位置。 在另一方面，提供了一种用于在井眼中释放工具的方法，其包括：将EAP装置可释放地连接到输送构件和工具; 使用传送构件将工具输送到井筒中; 并且电激活所述EAP装置以将所述工具从所述井眼中的输送构件释放。

公开(公告)号：US07373994B2

公开(公告)日：2008-05-20

申请号：US10960471

申请日：2004-10-07

Applicant: Borislav J. Tchakarov ,  Roderick A. Larson ,  David W. Ashcraft

Inventor： Borislav J. Tchakarov ,  Roderick A. Larson ,  David W. Ashcraft

IPC: E21B49/06 ,  E21B10/02

CPC classification number: E21B49/06 ,  E21B10/02 ,  E21B10/44 ,  E21B10/605

Abstract: A coring member useful in wellbore excavating operations comprising at least one segment disposed onto the end of a shaft, where a channel is formed between each at least one segment. The at least one segment has an impeller like arrangement that on rotation produces a pressure differential across the face of the coring member. The impeller like arrangement comprises an obliquely attached vane on one side of the face, and an obliquely attached rib on the other side. Rotation of the coring member within a fluid produces a localized high-pressure zone adjacent the face of each rib and a corresponding low-pressure zone adjacent the face of each vane. Each channel provides fluid communication between a vane and a rib, where the vane and the rib are located on different but adjacent segments. The pressure differential between the vane and the rib during rotation of the drill bit within a fluid can produce fluid flow through the channel from the rib to the vane.

Abstract translation: 一种用于井筒挖掘作业的取芯构件，其包括设置在轴的端部上的至少一个段，其中在每个至少一个段之间形成通道。 至少一个段具有叶轮式布置，其在旋转时产生跨越取芯构件的表面的压力差。 叶轮式装置包括在面的一侧上的倾斜连接的叶片和在另一侧上的倾斜连接的肋。 取芯部件在流体内的旋转产生邻近每个肋骨表面的局部高压区域和邻近每个叶片的相应的低压区域。 每个通道提供叶片和肋之间的流体连通，其中叶片和肋条位于不同但相邻的段上。 在钻头在流体内旋转期间叶片和肋之间的压力差可以产生通过通道从肋到叶片的流体流动。

公开(公告)号：US20080149348A1

公开(公告)日：2008-06-26

申请号：US12024823

申请日：2008-02-01

Applicant: Rocco DiFoggio ,  Roderick A. Larson ,  Jeffrey Honekamp

Inventor： Rocco DiFoggio ,  Roderick A. Larson ,  Jeffrey Honekamp

IPC: E21B23/00

CPC classification number: H02N2/10 ,  E21B23/00 ,  E21B34/066 ,  F04B17/003 ,  F04B47/00 ,  G01J3/06 ,  G01J2003/1243 ,  G01V1/145 ,  G01V1/38 ,  G01V11/005 ,  H02N2/101 ,  Y02A90/36

Abstract: In one aspect, an apparatus for use in a wellbore is provided that may include: a tool configured to be conveyed into the wellbore by a conveying member; and an electro-active polymer device (“EAP device”) configured to connect the tool to the conveying member when the EAP device is in a first mode or position and disconnect the tool from the conveying member when the EAP device is in a second mode or position. In another aspect, a method for releasing a tool in a wellbore is provided which includes: releasably connecting an EAP device to a conveying member and the tool; conveying the tool in the wellbore with the conveying member; and electrically activating the EAP device to release the tool from the conveying member in the wellbore.

Abstract translation: 在一个方面，提供了一种用于井眼的装置，其可以包括：构造成通过传送构件输送到井眼中的工具; 以及当所述EAP设备处于第一模式或位置并且当所述EAP设备处于第二模式时将所述工具从所述传送构件断开时，被配置为将所述工具连接到所述传送构件的电活性聚合物设备（“EAP设备” 或位置。 在另一方面，提供了一种用于在井眼中释放工具的方法，其包括：将EAP装置可释放地连接到输送构件和工具; 使用传送构件将工具输送到井筒中; 并且电激活所述EAP装置以将所述工具从所述井眼中的输送构件释放。