Methods for geomechanical fracture modeling
    1.
    发明申请
    Methods for geomechanical fracture modeling 有权
    地质力学断裂模拟方法

    公开(公告)号:US20050125209A1

    公开(公告)日:2005-06-09

    申请号:US10728295

    申请日:2003-12-04

    摘要: The present invention relates generally to methods for designing and optimizing the number, placement, and size of fractures in a subterranean formation and more particularly to methods that account for stress interference from other fractures when designing and optimizing the number, placement, and size of fractures in the subterranean formation. The present invention optimizes the number, placement and size of fractures in a subterranean formation. The present invention determinines one or more geomechanical stresses induced by each fracture based on the dimensions and location of each fracture. The present invention determinines a maximum number of fractures and a predicted stress field based on the geomechanical stresses induced by each of the fractures

    摘要翻译: 本发明一般涉及用于设计和优化地层中裂缝的数量,位置和尺寸的方法,更具体地涉及在设计和优化裂缝的数量,位置和尺寸时考虑来自其他裂缝的应力干扰的方法 在地层中。 本发明优化了地层中裂缝的数量,位置和尺寸。 本发明基于每个断裂的尺寸和位置确定由每个断裂引起的一个或多个地质力学应力。 本发明基于每个断裂引起的地质力学应力来确定最大数量的裂缝和预测的应力场

    Fracture characterization using reservoir monitoring devices

    公开(公告)号:US20060102342A1

    公开(公告)日:2006-05-18

    申请号:US10987147

    申请日:2004-11-12

    IPC分类号: E21B47/10 E21B23/14

    CPC分类号: E21B47/01 E21B43/26

    摘要: A system for monitoring a wellbore service treatment, comprising a downhole tool operable to perform the wellbore service treatment; a conveyance connected to the downhole tool for moving the downhole tool in the wellbore, and a plurality of sensors operable to provide one or more wellbore indications and attached to the downhole tool or a component thereof via one or more tethers. A method of monitoring a wellbore service treatment, comprising conveying into a wellbore a downhole tool operable to perform the wellbore service treatment and a plurality of sensors operable to provide one or more wellbore indications attached to the downhole tool or a component thereof via one or more tethers, deploying the downhole tool at a first position in the wellbore for service, treating the wellbore at the first position; and monitoring an at least one wellbore indication provided by the wellbore sensors at the first position.

    Fracture characterization using reservoir monitoring devices
    3.
    发明授权
    Fracture characterization using reservoir monitoring devices 有权
    使用储层监测装置的断裂特征

    公开(公告)号:US07543635B2

    公开(公告)日:2009-06-09

    申请号:US10987147

    申请日:2004-11-12

    IPC分类号: E21B49/00 E21B47/00

    CPC分类号: E21B47/01 E21B43/26

    摘要: A system for monitoring a wellbore service treatment, comprising a downhole tool operable to perform the wellbore service treatment; a conveyance connected to the downhole tool for moving the downhole tool in the wellbore, and a plurality of sensors operable to provide one or more wellbore indications and attached to the downhole tool or a component thereof via one or more tethers. A method of monitoring a wellbore service treatment, comprising conveying into a wellbore a downhole tool operable to perform the wellbore service treatment and a plurality of sensors operable to provide one or more wellbore indications attached to the downhole tool or a component thereof via one or more tethers, deploying the downhole tool at a first position in the wellbore for service, treating the wellbore at the first position; and monitoring an at least one wellbore indication provided by the wellbore sensors at the first position.

    摘要翻译: 一种用于监测井眼服务处理的系统,包括可操作以执行井筒服务处理的井下工具; 连接到井下工具以将钻井中的井下工具移动的输送器,以及可操作以提供一个或多个井筒指示并经由一个或多个系绳附接到井下工具或其部件的多个传感器。 一种监测井眼服务处理的方法,包括将能够可操作以执行井眼服务处理的井下工具输送到井筒中;以及多个传感器,其可操作以提供一个或多个井眼指示,其连接到井下工具或其组件,经由一个或多个 系绳,将井下工具部署在井筒中的第一位置用于维修,在第一位置处理井眼; 以及监测由所述井眼传感器在所述第一位置处提供的至少一个井眼指示。

    Method of optimizing production of gas from vertical wells in coal seams
    4.
    发明申请
    Method of optimizing production of gas from vertical wells in coal seams 有权
    煤层气井优化瓦斯生产方法

    公开(公告)号:US20050121196A1

    公开(公告)日:2005-06-09

    申请号:US10727453

    申请日:2003-12-04

    摘要: The present invention is directed to a method for producing gas from a subterranean formation containing a coal seam. The method includes the steps of drilling a substantially vertical well bore into the subterranean formation, which intersects the coal seam and fracturing the coal seam using a hydrajetting tool to produce at least one pair of opposed bi-wing fractures substantially along a plane of maximum stress. One or more horizontal well bores may also be drilled into the coal seam along which the coal seam can be further fractured.

    摘要翻译: 本发明涉及一种从含有煤层的地层中生产气体的方法。 该方法包括以下步骤:将基本上垂直的井眼钻入地下地层,其与煤层相交,并使用水力喷射工具压裂煤层,以产生基本上沿着最大应力平面的至少一对相对的双翼裂缝 。 一个或多个水平井眼也可以钻入煤层,煤层可以沿着煤层进一步断裂。

    Methods and apparatus for multiple fracturing of subterranean formations
    5.
    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
    6.
    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。

    Methods and apparatus for multiple fracturing of subterranean formations
    8.
    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
    9.
    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。