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    Methods and compositions for forming permeable cement sand screens in well bores
    6.
    发明授权
    Methods and compositions for forming permeable cement sand screens in well bores 有权
    在井眼中形成渗透性水泥砂筛的方法和组合物

    公开(公告)号：US06202751B1

    公开(公告)日：2001-03-20

    申请号：US09627264

    申请日：2000-07-28

    申请人： Jiten Chatterji ,  Roger S. Cromwell ,  Baireddy R. Reddy ,  Bobby J. King ,  Philip D. Nguyen ,  David L. Brown

    发明人： Jiten Chatterji ,  Roger S. Cromwell ,  Baireddy R. Reddy ,  Bobby J. King ,  Philip D. Nguyen ,  David L. Brown

    IPC分类号： E21B33138

    CPC分类号： E21B43/08

    摘要： Methods and compositions for forming permeable cement sand screens in well bores are provided. The compositions are basically comprised of a hydraulic cement, an acid soluble particulate solid, a liquid hydrocarbon solvent soluble particulate solid, a particulate cross-linked gel containing an internal breaker which after time causes the gel to break into a liquid, water present in an amount sufficient to form a slurry, a gas present in an amount sufficient to form a foam and a mixture of foaming and foamed stabilizing surfactants.

    摘要翻译： 提供了在井眼中形成渗透性水泥砂筛的方法和组合物。 组合物基本上由水硬性水泥，酸溶性颗粒固体，液体烃溶剂可溶性颗粒固体，含有内部破碎剂的颗粒状交联凝胶组成，其在时间使凝胶破裂成液体后，存在于 足以形成浆料，以足以形成泡沫的量存在的气体和发泡和泡沫稳定表面活性剂的混合物。

    Methods of reducing the water permeability of subterranean formations
    9.
    发明授权
    Methods of reducing the water permeability of subterranean formations 有权
    降低地层地层渗透性的方法

    公开(公告)号：US06364016B1

    公开(公告)日：2002-04-02

    申请号：US09697060

    申请日：2000-10-26

    申请人： Eldon D. Dalrymple ,  Larry S. Eoff ,  Baireddy R. Reddy ,  David L. Brown ,  Paul S. Brown

    发明人： Eldon D. Dalrymple ,  Larry S. Eoff ,  Baireddy R. Reddy ,  David L. Brown ,  Paul S. Brown

    IPC分类号： E21B4322

    CPC分类号： C09K8/508

    摘要： Improved methods of treating water and hydrocarbons producing subterranean formations to reduce the water permeabilities of the formations without substantially reducing the hydrocarbons permeabilities thereof are provided. The methods basically comprise introducing into the formation a chemical which does not resist water flow and attaches to adsorption sites on surfaces within the porosity of the formation but slowly washes off the sites as another fluid flows through the treated formation. Thereafter, a water flow resisting polymer is introduced into the formation so that it flows deeply into the porosity of the formation before the previously introduced chemical washes off and attaches to the adsorption sites as the chemical washes off.

    摘要翻译： 提供了改进的处理水和生产地下地层的烃的方法，以减少地层的水渗透性，而基本上不降低烃的渗透性。 这些方法基本上包括向地层中引入不能抵抗水流的化学物质，并且附着在地层孔隙中的表面上的吸附位点，但随着另一种流体流过经处理的地层而缓慢地洗出位点。 此后，将水流阻聚性聚合物引入地层，使其在先前引入的化学物质洗掉之前深深地流入地层的孔隙中，并随着化学物质洗脱而附着在吸附位置。