Methods and apparatus for multiple fracturing of subterranean formations
    2.
    发明授权
    Methods and apparatus for multiple fracturing of subterranean formations 有权
    地层多次压裂的方法和装置

    公开(公告)号:US07431090B2

    公开(公告)日:2008-10-07

    申请号:US11158484

    申请日:2005-06-22

    IPC分类号: E21B43/26

    CPC分类号: E21B43/26 E21B43/114

    摘要: The invention relates to methods and apparatus for creating multiple fractures in subterranean formations. The apparatus is a jetting tool having a plurality of sets of jetting nozzles so that the sets of nozzles are substantially parallel to one another such that parallel cavities may be formed substantially simultaneously in the formation. The jetting nozzles may be adapted to provide a fluid jet that flares outwardly from the nozzle. The nozzles also may be aligned such that cavities in the formation overlap to form a single cavity. The nozzles may be further adapted so that holes jetted into the casing thereby are still spaced from one another. Methods of fracturing subterranean formations using the apparatus are also disclosed.

    摘要翻译: 本发明涉及用于在地层中形成多个裂缝的方法和装置。 该装置是具有多组喷射喷嘴的喷射工具,使得该组喷嘴基本上彼此平行,使得平行的空腔可以基本上同时形成在地层中。 喷射喷嘴可以适于提供从喷嘴向外张开的流体射流。 喷嘴也可以对齐,使得地层中的空腔重叠以形成单个空腔。 喷嘴可以进一步适于使得喷射到壳体中的孔彼此间隔开。 还公开了使用该装置压裂地层的方法。

    Methods of initiating a fracture tip screenout
    3.
    发明授权
    Methods of initiating a fracture tip screenout 有权
    启动断裂尖端筛选的方法

    公开(公告)号:US07237612B2

    公开(公告)日:2007-07-03

    申请号:US10991165

    申请日:2004-11-17

    IPC分类号: E21B43/26

    CPC分类号: E21B43/26

    摘要: Methods of initiating a fracture tip screenout, that comprise pumping an annulus fluid into an annulus, between the subterranean formation and a work string disposed within a wellbore penetrating the subterranean formation, at an annulus flow rate; and reducing the annulus flow rate below a fracture initiation flow point so that the fracture tip screenout is initiated in the one or more fractures in the subterranean formation, are provided. Also provided are methods of fracturing a portion of a subterranean formation and methods of estimating a fracture initiation flow point.

    摘要翻译: 在环形流速下启动破裂尖端筛选的方法,该方法包括将环形流体泵送到环形层之间,位于穿过地下地层的地下地层和布置在井筒内的工作串之间; 并且提供低于破裂起始流动点的环空流速,使得在地层中的一个或多个裂缝中开始断裂尖端筛选。 还提供了压裂地层的一部分的方法和估计断裂起始流点的方法。

    Method for stimulating a well
    4.
    发明授权
    Method for stimulating a well 有权
    刺激井的方法

    公开(公告)号:US07343975B2

    公开(公告)日:2008-03-18

    申请号:US11221022

    申请日:2005-09-06

    IPC分类号: E21B43/11

    摘要: A bottomhole assembly (BHA) and method for stimulating a well includes setting a packer of the BHA in a wellbore. The BHA includes the packer and a jetting tool coupled to a tubing string. Process fluid is pumped down the tubing string and jetted with the jetting tool to perforate a formation. Stimulation process fluid is pumped down an annulus of the wellbore to fracture the formation.

    摘要翻译: 井底组件(BHA)和刺激井的方法包括在井眼中设置BHA的封隔器。 BHA包括封隔器和连接到管柱的喷射工具。 将过程流体泵送到油管柱上并用喷射工具喷射以使地层穿孔。 刺激过程流体被泵送到井眼的环形区域以破裂地层。

    Methods and apparatus for multiple fracturing of subterranean formations
    6.
    发明申请
    Methods and apparatus for multiple fracturing of subterranean formations 有权
    地层多次压裂的方法和装置

    公开(公告)号:US20060289167A1

    公开(公告)日:2006-12-28

    申请号:US11158484

    申请日:2005-06-22

    IPC分类号: E21B43/26

    CPC分类号: E21B43/26 E21B43/114

    摘要: The invention relates to methods and apparatus for creating multiple fractures in subterranean formations. The apparatus is a jetting tool having a plurality of sets of jetting nozzles so that the sets of nozzles are substantially parallel to one another such that parallel cavities may be formed substantially simultaneously in the formation. The jetting nozzles may be adapted to provide a fluid jet that flares outwardly from the nozzle. The nozzles also may be aligned such that cavities in the formation overlap to form a single cavity. The nozzles may be further adapted so that holes jetted into the casing thereby are still spaced from one another. Methods of fracturing subterranean formations using the apparatus are also disclosed.

    摘要翻译: 本发明涉及用于在地层中形成多个裂缝的方法和装置。 该装置是具有多组喷射喷嘴的喷射工具,使得该组喷嘴基本上彼此平行,使得平行的空腔可以基本上同时形成在地层中。 喷射喷嘴可以适于提供从喷嘴向外张开的流体射流。 喷嘴也可以对齐,使得地层中的空腔重叠以形成单个空腔。 喷嘴可以进一步适于使得喷射到壳体中的孔彼此间隔开。 还公开了使用该装置压裂地层的方法。

    Methods of initiating a fracture tip screenout
    7.
    发明申请
    Methods of initiating a fracture tip screenout 有权
    启动断裂尖端筛选的方法

    公开(公告)号:US20060102344A1

    公开(公告)日:2006-05-18

    申请号:US10991165

    申请日:2004-11-17

    IPC分类号: E21B49/00 E21B43/26

    CPC分类号: E21B43/26

    摘要: Methods of initiating a fracture tip screenout, that comprise pumping an annulus fluid into an annulus, between the subterranean formation and a work string disposed within a wellbore penetrating the subterranean formation, at an annulus flow rate; and reducing the annulus flow rate below a fracture initiation flow point so that the fracture tip screenout is initiated in the one or more fractures in the subterranean formation, are provided. Also provided are methods of fracturing a portion of a subterranean formation and methods of estimating a fracture initiation flow point.

    摘要翻译: 在环形流速下启动破裂尖端筛选的方法,该方法包括将环形流体泵送到环形层之间,位于穿过地下地层的地下地层和布置在井筒内的工作串之间; 并且提供低于破裂起始流动点的环空流速,使得在地层中的一个或多个裂缝中开始断裂尖端筛选。 还提供了压裂地层的一部分的方法和估计断裂起始流点的方法。

    Bottomhole assembly and method for stimulating a well
    8.
    发明申请
    Bottomhole assembly and method for stimulating a well 有权
    井眼装配和刺激井的方法

    公开(公告)号:US20070051517A1

    公开(公告)日:2007-03-08

    申请号:US11221022

    申请日:2005-09-06

    IPC分类号: E21B43/26 E21B33/12

    摘要: A bottomhole assembly (BHA) and method for stimulating a well includes setting a packer of the BHA in a wellbore. The BHA includes the packer and a jetting tool coupled to a tubing string. Process fluid is pumped down the tubing string and jetted with the jetting tool to perforate a formation. Stimulation process fluid is pumped down an annulus of the wellbore to fracture the formation.

    摘要翻译: 井底组件(BHA)和刺激井的方法包括在井眼中设置BHA的封隔器。 BHA包括封隔器和连接到管柱的喷射工具。 将过程流体泵送到油管柱上并用喷射工具喷射以使地层穿孔。 刺激过程流体被泵送到井眼的环形区域以破裂地层。

    CT drilling rig
    9.
    发明授权
    CT drilling rig 失效
    CT钻机

    公开(公告)号:US06719062B2

    公开(公告)日:2004-04-13

    申请号:US10345629

    申请日:2003-01-16

    IPC分类号: E21B1922

    摘要: A drilling rig includes a tower, a stabilizer for lifting/lowering an injector and BOP stack, and a powered arm adapted to manipulate BHA segments. The tower includes a plurality of interlocking modules and is mounted on two perpendicularly aligned skids. The tower is also provided with an opening that enables the side loading of equipment. The preferred rig includes one module adapted to support a stabilizer that includes hydraulic lifts that can raise the injector and BOP stack off the wellhead. The stabilizer also accommodates the thermal expansion of the BOP stack by rising and lowering the stack during well servicing operations. The powered arm attaches to the tower and includes an articulated gripper for manipulating the bottom hole assembly segments. Preferably, the powered arm is controlled by a general-purpose computer that guides the powered arm through a predetermined sweep.

    摘要翻译: 钻机包括塔,用于提升/降低喷射器和BOP堆叠的稳定器,以及适于操纵BHA段的动力臂。 塔架包括多个互锁模块,并安装在两个垂直对齐的滑板上。 该塔还设有一个开启装置,使装置能够侧面装载。 优选的钻机包括一个适于支撑稳定器的模块,该稳定器包括能够使喷射器和BOP堆叠离开井口的液压升降机。 稳定器还通过在维护操作期间升高和降低堆叠来适应BOP堆叠的热膨胀。 动力臂附接到塔架并且包括用于操纵底部孔组件段的铰接夹具。 优选地,动力臂由通用计算机控制,该计算机通过预定的扫描来引导动力臂。

    Methods of treating subterranean formations using low-molecular-weight fluids
    10.
    发明授权
    Methods of treating subterranean formations using low-molecular-weight fluids 有权
    使用低分子量流体处理地下地层的方法

    公开(公告)号:US07059405B2

    公开(公告)日:2006-06-13

    申请号:US11033006

    申请日:2005-01-11

    摘要: The present invention relates to systems and methods useful in subterranean treatment operations. Examples of methods of the present invention include methods for fracturing a portion of a subterranean formation penetrated by a well bore; methods of enhancing production from multiple subterranean formations penetrated by a well bore during a single trip through the well bore; and methods of enhancing production, in real time, from multiple subterranean formations penetrated by a well bore during a single trip through the well bore.

    摘要翻译: 本发明涉及在地下处理操作中有用的系统和方法。 本发明的方法的实例包括用于压裂由井眼渗透的地层的一部分的方法; 在通过井眼的单次行程期间,由井眼穿透的多个地下地层的生产增强的方法; 以及在通过井眼的单次行程期间实时增强由井眼穿透的多个地下地层的实时增强生产的方法。