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    • 5. 发明申请
    • Downhole wellbore tools having deteriorable and water-swellable components thereof and methods of use
    • 井下井眼工具具有恶化的水溶胀性组分和使用方法
    • US20070277979A1
    • 2007-12-06
    • US11447475
    • 2006-06-06
    • Bradley L. ToddTrinidad Munoz
    • Bradley L. ToddTrinidad Munoz
    • E21B33/13E21B43/12
    • E21B33/134E21B33/12
    • An apparatus is provided for use as a downhole tool or a component thereof for insertion into a wellbore. According to one aspect, the apparatus has a body having a chamber, wherein at least a portion of the body is radially expandable; and a water-swellable material in the chamber, wherein the water-swellable material is dissolvable in water. According to another aspect, the apparatus has a body having a chamber, wherein at least a portion of the body is radially expandable, and wherein at least a portion of the body is made with a material that is deteriorable by hydrolysis; and a water-swellable material in the chamber. According to a further aspect, the water-swellable material is dissolvable in water. A process of temporarily blocking or sealing a wellbore is also provided, including moving an apparatus according to the invention through a wellbore to a selected position in the wellbore; exposing the water-swellable material to water or an aqueous fluid to expand the apparatus into engagement with the wellbore; performing a well completion, servicing, or workover operation in which the apparatus is contacted with fluids; and thereafter, allowing the deteriorable material to deteriorate and/or allowing the water-swellable material to dissolve.
    • 提供一种用作井下工具或其部件用于插入井眼的装置。 根据一个方面,该装置具有一个具有室的主体,其中主体的至少一部分是可径向扩张的; 以及所述室中的水溶胀性材料,其中所述水溶胀性材料可溶于水。 根据另一方面,所述装置具有主体,该主体具有腔室,其中所述主体的至少一部分是径向可膨胀的,并且其中所述主体的至少一部分由可通过水解而劣化的材料制成; 和室内的水溶胀材料。 根据另一方面,水溶胀性材料可溶于水。 还提供了临时封闭或密封井眼的过程,包括将根据本发明的设备通过井筒移动到井眼中的选定位置; 将水溶胀材料暴露于水或含水流体以使设备膨胀成与井眼接合; 执行设备与流体接触的完井,维修或修井操作; 然后使劣化物质劣化和/或使水溶胀性物质溶解。
    • 6. 发明申请
    • Treatment fluids and methods of use in subterranean formations
    • 处理液和地下地层中使用的方法
    • US20050059556A1
    • 2005-03-17
    • US10832163
    • 2004-04-26
    • Trinidad MunozLarry Eoff
    • Trinidad MunozLarry Eoff
    • C09K8/03C09K8/06C09K8/504C09K8/508C09K8/52C09K7/06
    • C09K8/5045C09K8/03C09K8/06C09K8/508C09K8/52C09K2208/18Y10T428/2982
    • The present invention relates to subterranean treatment operations, and more particularly to improved bridging agents comprising a degradable material, improved subterranean treatment fluids comprising such improved bridging agents, and methods of using such improved subterranean treatment fluids in subterranean formations. An example of a method of the present invention is a method of drilling a well bore in a subterranean formation. Another example of a method of the present invention is a method of forming a self-degrading filter cake in a subterranean formation. Another example of a method of the present invention is a method of degrading a filter cake in a subterranean formation. An example of a composition of the present invention is a treatment fluid including a viscosifier, a fluid loss control additive, and a bridging agent comprising a degradable material. Another example of a composition of the present invention is a bridging agent comprising a degradable material.
    • 本发明涉及地下处理操作,更具体地涉及包含可降解材料的改进的桥连剂,包含这种改进的桥连剂的改进的地下处理流体,以及在地下地层中使用这种改进的地下处理流体的方法。 本发明的方法的一个实例是在地层中钻井井的方法。 本发明方法的另一个实例是在地层中形成自降解滤饼的方法。 本发明方法的另一个实例是降解地层中滤饼的方法。 本发明的组合物的实例是包括增粘剂,流体损失控制添加剂和包含可降解材料的桥连剂的处理流体。 本发明组合物的另一个实例是包含可降解材料的桥连剂。