Method of fracturing high temperature wells and fracturing fluid
therefore
    41.
    发明授权
    Method of fracturing high temperature wells and fracturing fluid therefore 失效
    因此,压裂高温井和压裂液的方法

    公开(公告)号:US5103913A

    公开(公告)日:1992-04-14

    申请号:US626350

    申请日:1990-12-12

    IPC分类号: C09K8/62 E21B43/267

    摘要: The high temperature stability of an aqueous fracturing fluid is extended for use in high temperature (above 300.degree. F.) subterranean formations through the addition of quantities of unhydrated, particulate guar or guar derivative polymers prior to the pumping of the fracturing fluid into the formation. Additional high temperature stability is achieved through the addition of soluble bicarbonate to the fracturing fluid and raising the pH of the fracturing fluid to about 9.2 to 10.4.

    摘要翻译: 水力压裂液的高温稳定性在将压裂流体泵入地层之前通过加入大量未水合的颗粒状瓜尔胶或瓜尔胶衍生物聚合物而延伸用于高温(高于300°F)的地下地层 。 通过向压裂液中加入可溶性碳酸氢盐并将压裂液的pH提高至约9.2至10.4来实现额外的高温稳定性。

    Method and System for Treating A Subterranean Formation
    42.
    发明申请
    Method and System for Treating A Subterranean Formation 审中-公开
    用于处理地层的方法和系统

    公开(公告)号:US20140166276A1

    公开(公告)日:2014-06-19

    申请号:US13697460

    申请日:2011-05-10

    摘要: A method and apparatus to treat a subterranean formation comprising a wellbore including introducing a tool to a wellbore in a region of low permeability or damage, treating the region of low permeability or damage with a fluid, simultaneously measuring a fluid pressure drop and volume of fluid flow in a particular region, and moving the tool to another region. A method and apparatus to treat a subterranean formation comprising a wellbore including introducing to a wellbore a tool in a region of low permeability or damage, treating the region of low permeability or damage with a fluid, introducing a diversion agent, and moving the tool to another region wherein the fluid comprises a tracer.

    摘要翻译: 一种处理包括井筒的地下地层的方法和装置,包括将工具引入低渗透性或损伤区域中的井眼,用流体处理低渗透性或损伤性的区域,同时测量流体压降和流体体积 在特定区域中流动,并将工具移动到另一区域。 一种处理包括井筒的地下地层的方法和装置,包括在低渗透性或损伤的区域中将工具引入井筒,用流体处理低渗透性或损伤性区域,引入转移剂并将工具移动到 另一区域,其中流体包括示踪剂。

    Sealing By Ball Sealers
    44.
    发明申请
    Sealing By Ball Sealers 有权
    密封球密封

    公开(公告)号:US20090255674A1

    公开(公告)日:2009-10-15

    申请号:US12103041

    申请日:2008-04-15

    IPC分类号: E21B33/13

    CPC分类号: E21B33/13 E21B33/138

    摘要: In downhole treatments in the oilfield, ball sealers seated in perforations may not fully seal and may leak fluid through gaps and asperities between the balls and the perforations. A method is given for improving the sealing of ball sealers in perforations by adding a sealing agent that forms a plug in the gaps and severely restricts or eliminates fluid flow. The sealing agent is preferably degradable or soluble, malleable fibers slightly larger than the gaps. Optionally, the particles may be non-degradable, rigid, of different shapes, and smaller than the gaps but able to bridge them. Mixtures of sealing agents may be used. The sealing agent may be added with the ball sealers, after the ball sealers, or both.

    摘要翻译: 在油田的井下处理中,位于穿孔中的球形密封件可能不能完全密封,并且可能通过球和孔之间的间隙和凹凸泄漏流体。 给出了一种通过添加在间隙中形成塞子并严格限制或消除流体流动的密封剂来改善穿孔中的球形密封剂的密封的方法。 密封剂优选是比间隙稍大的可降解或可溶的可延展纤维。 任选地,颗粒可以是不可降解的,刚性的,具有不同形状,并且小于间隙但能够桥接它们。 可以使用密封剂的混合物。 密封剂可以在球密封剂之后或两者之间加入球密封剂。

    Method of Modifying Permeability between Injection and Production Wells
    45.
    发明申请
    Method of Modifying Permeability between Injection and Production Wells 失效
    改善注射和生产井之间渗透性的方法

    公开(公告)号:US20070267191A1

    公开(公告)日:2007-11-22

    申请号:US11738020

    申请日:2007-04-20

    IPC分类号: E21B47/00 E21B43/22

    CPC分类号: E21B33/138

    摘要: The invention provides a method of treating a subterranean formation penetrated by at least one injection well and at least one production well, the method comprising the steps of a) analyzing the injection well, the production well, and reservoir contained in the subterranean formation; b) selecting at least one fluid and at least one permeability reducer to be placed in flow ways contained within the formation; and c) performing a formation permeability modification using the selected fluids and at least one permeability reducer, whereby the flow of injected driving fluid between the injection well and production well is substantially reduced. In one embodiment, the method of analyzing the injection well, the production well, and reservoir contained in the subterranean formation includes the steps of evaluation of completion information, reservoir data, or both.

    摘要翻译: 本发明提供了一种处理由至少一个注入井和至少一个生产井渗透的地层的方法,所述方法包括以下步骤:a)分析地下地层中所含的注入井,生产井和储层; b)选择至少一种流体和至少一个渗透率减小器以置于包含在地层内的流动路径中; 以及c)使用所选择的流体和至少一个渗透率减小器进行地层渗透率改性,由此在注入井和生产井之间喷射的驱动流体的流动显着减少。 在一个实施例中,分析地下地层中包含的注入井,生产井和储层的方法包括评估完井信息,储层数据或两者的步骤。

    Method of predicting friction pressure drop of proppant-laden slurries using surface pressure data
    46.
    发明授权
    Method of predicting friction pressure drop of proppant-laden slurries using surface pressure data 有权
    使用表面压力数据预测含支撑剂的浆料的摩擦压降的方法

    公开(公告)号:US06863128B2

    公开(公告)日:2005-03-08

    申请号:US10277535

    申请日:2002-10-22

    IPC分类号: E21B43/267 E21B43/26

    CPC分类号: E21B43/267

    摘要: The present invention relates to a method of determining the proppant friction generated in a fracture of a subterranean formation during a hydraulic fracturing treatment involving injection stages of pad and of proppant-laden fluids. This method is based on close monitoring of surface pressure to define a “net pressure rate” which defines an increase or decrease of net pressure while the job is being pumped, and then relates it with the pressure changes observed with the onset of proppant stages of varying concentrations.

    摘要翻译: 本发明涉及一种确定在地层的断裂中产生的支撑剂摩擦的方法,该水力压裂处理包括垫和含支撑剂的流体的注入阶段。 该方法基于对表面压力的密切监测,以定义“净压力率”,其定义了当作业被泵送时净压力的增加或减少,然后将其与在支撑剂阶段开始时观察到的压力变化相关联 不同浓度。

    Methods and fluid compositions designed to cause tip screenouts
    47.
    发明授权
    Methods and fluid compositions designed to cause tip screenouts 有权
    方法和流体组合物设计用于引起尖端筛选

    公开(公告)号:US06837309B2

    公开(公告)日:2005-01-04

    申请号:US10214817

    申请日:2002-08-08

    摘要: In stimulation treatments to increase the production of hydrocarbons from subterranean formations, especially in treatments including hydraulic fracturing followed by gravel packing, desirable short wide fractures are created and filled with proppant by deliberately including in the first fluid/proppant slurry pumped a sufficiently high concentration of a bridging-promoting material, such as fibers, that reduces the mobility of the slurry when it dewaters so that screenout at or near the tip occurs.

    摘要翻译: 在刺激处理中,增加地下地层中烃类的生产,特别是在包括水力压裂,然后是砾石填充的处理中,产生理想的短宽裂缝,并通过故意包括在第一种流体/支撑剂浆料中填充足够宽的裂缝, 桥接促进材料,例如纤维,其在脱水时降低浆料的流动性,从而发生尖端处或附近的筛选。

    Sealing by ball sealers
    48.
    发明授权
    Sealing by ball sealers 有权
    密封胶密封

    公开(公告)号:US08936085B2

    公开(公告)日:2015-01-20

    申请号:US12103041

    申请日:2008-04-15

    IPC分类号: E21B33/13 E21B33/138

    CPC分类号: E21B33/13 E21B33/138

    摘要: In downhole treatments in the oilfield, ball sealers seated in perforations may not fully seal and may leak fluid through gaps and asperities between the balls and the perforations. A method is given for improving the sealing of ball sealers in perforations by adding a sealing agent that forms a plug in the gaps and severely restricts or eliminates fluid flow. The sealing agent is preferably degradable or soluble, malleable fibers slightly larger than the gaps. Optionally, the particles may be non-degradable, rigid, of different shapes, and smaller than the gaps but able to bridge them. Mixtures of sealing agents may be used. The sealing agent may be added with the ball sealers, after the ball sealers, or both.

    摘要翻译: 在油田的井下处理中,位于穿孔中的球形密封件可能不能完全密封,并且可能通过球和孔之间的间隙和凹凸泄漏流体。 给出了一种通过添加在间隙中形成塞子并严格限制或消除流体流动的密封剂来改善穿孔中的球形密封剂的密封的方法。 密封剂优选是比间隙稍大的可降解或可溶的可延展纤维。 任选地,颗粒可以是不可降解的,刚性的,具有不同形状,并且小于间隙但能够桥接它们。 可以使用密封剂的混合物。 密封剂可以在球密封剂之后或两者之间加入球密封剂。

    Multilayered ball sealer and method of use thereof
    49.
    发明授权
    Multilayered ball sealer and method of use thereof 有权
    多层球形封口机及其使用方法

    公开(公告)号:US08714250B2

    公开(公告)日:2014-05-06

    申请号:US12252044

    申请日:2008-10-15

    IPC分类号: E21B33/13

    CPC分类号: E21B33/138 E21B43/26

    摘要: A multilayered ball sealer having a deformable layer. The multilayered ball sealer has an outer or intermediate layer that is deformable under pressure. In the former, the deformable layer may be water-soluble or hydrolysable. In the latter, the outer layer is a sheath that contains the deformable layer and adapts to its shape. A multilayered ball sealer may be used as a diversion agent by being suspended in a fluid injected into a wellbore and applying pressure to deform the shape of the intermediate layer such that the multilayered ball sealer adapts to the shape of a perforation opening on which the multilayered ball sealer has seated.

    摘要翻译: 具有可变形层的多层球形封口机。 多层球形密封剂具有在压力下可变形的外层或中层。 在前者中,可变形层可以是水溶性的或可水解的。 在后者中,外层是包含可变形层并适应其形状的护套。 多层球形密封剂可以通过悬浮在注入井筒中的流体中并且施加压力以使中间层的形状变形而被用作转向剂,使得多层球形密封剂适应穿孔开口的形状,多孔层 球密封器就座。