Methods of formulating a cement composition
    4.
    发明申请
    Methods of formulating a cement composition 有权
    配制水泥组合物的方法

    公开(公告)号:US20070062691A1

    公开(公告)日:2007-03-22

    申请号:US11228099

    申请日:2005-09-16

    申请人: B. Reddy Krishna Ravi

    发明人: B. Reddy Krishna Ravi

    IPC分类号: E21B47/00 E21B33/13

    摘要: A method of cementing a wellbore in a subterranean formation, comprising formulating a cement composition that may be suitable for long-term zonal isolation of the subterranean formation by evaluating a subterranean formation, preparing a base cement composition, determining the compressive strength of the base cement composition, determining the tensile strength of the base cement composition, and adjusting the ratio of compressive strength to tensile strength as need to within a first optimizing range to form a first optimized cement composition, and placing the optimized cement composition in the wellbore.

    摘要翻译: 一种在地层中固井的方法,包括配制一种水泥组合物,该水泥组合物可适用于通过评估地下地层来长期地层析地下地层,制备基础水泥组合物,确定基础水泥的抗压强度 确定基础水泥组合物的拉伸强度,并根据需要在第一优化范围内调节压缩强度与拉伸强度的比例,以形成第一优化的水泥组合物,并将优化的水泥组合物置于井眼中。

    Methods and compositions for controlling lost circulation in subterranean operations
    5.
    发明申请
    Methods and compositions for controlling lost circulation in subterranean operations 有权
    控制地下作业中流失的方法和组成

    公开(公告)号:US20060096759A1

    公开(公告)日:2006-05-11

    申请号:US10982016

    申请日:2004-11-05

    IPC分类号: E21B33/138 E21B21/00

    摘要: A lost circulation composition, that comprises a first portion of particles having a weight mean particle size of less than about 20 microns, a second portion of particles having a weight mean particle size in the range of from about 25 microns to about 400 microns, and a third portion of particles having a weight mean particle size in the range of from about 450 microns to about 1,500 microns, wherein the lost circulation composition has a multimodal particle size distribution, is provided, wherein resilient particles, particles comprising a thermoset polymer laminate, or a combination thereof are present in the lost circulation composition in an amount of at least about 20% by weight of the lost circulation composition, is provided. Drilling fluids, methods of controlling lost circulation, and methods of increasing an effective fracture gradient while drilling also are provided.

    摘要翻译: 一种失去循环的组合物,其包含重量平均粒度小于约20微米的第一部分颗粒,重量平均粒径在约25微米至约400微米范围内的第二部分颗粒,以及 提供了重量平均粒度在约450微米至约1,500微米范围内的颗粒的第三部分,其中所述缺失循环组合物具有多峰粒度分布,其中弹性颗粒包含热固性聚合物层压体的颗粒, 或其组合在损失循环组合物中的含量为至少约20重量%的损失循环组合物的量。 提供钻井液,控制流失的方法以及在钻井时提高有效断裂梯度的方法。

    Casing comprising stress-absorbing materials and associated methods of use
    6.
    发明申请
    Casing comprising stress-absorbing materials and associated methods of use 失效
    套管包括应力吸收材料和相关使用方法

    公开(公告)号:US20050211445A1

    公开(公告)日:2005-09-29

    申请号:US10807625

    申请日:2004-03-24

    申请人: Krishna Ravi

    发明人: Krishna Ravi

    IPC分类号: E21B17/00 E21B33/14 E21B43/02

    CPC分类号: E21B17/00 E21B33/14

    摘要: The present invention relates to subterranean drilling and well completion operations, and more particularly, to improved casing that comprises stress-absorbing materials and associated methods of use. In some embodiments, the present invention discloses methods of casing a well bore that comprise the steps of providing a casing that comprises a stress-absorbing material; and placing the casing into the well bore. In other embodiments, the present invention provides improved casing that comprises stress-absorbing materials and methods of reducing the transmission of stress from a casing to a cement sheath.

    摘要翻译: 本发明涉及地下钻井和完井操作,更具体地涉及包括应力吸收材料和相关使用方法的改进的套管。 在一些实施例中,本发明公开了套管井眼的方法,其包括提供包括应力吸收材料的壳体的步骤; 并将套管放置在井眼中。 在其它实施例中,本发明提供了改进的套管,其包括应力吸收材料和减小从套管到水泥套管的应力传递的方法。