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2. 发明申请

US20080156490A1 Proppant entrainment prevention method 失效
标题翻译：支架夹带预防方法
公开(公告)号：US20080156490A1
公开(公告)日：2008-07-03
申请号：US11959061
申请日：2007-12-18
申请人： Alexander Alexandrovich Burukhin , Anatoly Vladimirovich Matveev , Elena Mikhailovna Pershikova
发明人： Alexander Alexandrovich Burukhin , Anatoly Vladimirovich Matveev , Elena Mikhailovna Pershikova
IPC分类号： E21B43/267
CPC分类号： C09K8/80 , Y10S507/924 , Y10T428/2982
摘要： This invention relates to the oil and gas industry, in particular, to the technology for preventing proppant/sand entrainment from a reservoir. The elimination of sand entrainment and a significant increase in hydrodynamic permeability of the sand pack in an area near the wellbore are achieved through the use of a sand and/or proppant & proppant material mixture at the final stage of the fracture filling process, where individual particles of the proppant material have at least one shape of those included in the group: plates, lattices, hollow bars, inside-hollow tubes with a closed impermeable cavity or cavities, toroidal particles; elongated particles in the form of ovals, pellets or plates; cylinders with a closed impermeable cavity or cavities; blocks with a comb multi-channel structure with throughout channels of the ellipse or polygon cross-section; the polygon has at least three sides and the block containing channels has the ellipse or polygon cross-section, with a minimum number of polygon sides equal to 3, blocks with a 3D comb-arch permeable or impermeable structure, where the blocks are shaped as a sphere or a regular/irregular parallelepiped to be made of one of the following materials: ceramics, glassworks, glass-ceramics, cement, expanded-clay lightweight concrete, polymer, and metal, stainless steel or carbon steel. Hollow bars could have closed edges and sharpened beveled edges. Elongated particles in the form of ovals or pellets could have a closed impermeable cavity inside.
摘要翻译：本发明涉及石油和天然气工业，特别涉及用于防止支撑剂/砂从夹层中夹带的技术。通过在裂缝填充过程的最后阶段通过使用砂和/或支撑剂和支撑剂材料混合物来实现在井筒附近的区域中消除沙子夹带和沙包的流体动力学渗透性的显着增加，其中个体支撑剂材料的颗粒具有包括在组中的至少一种形状：板，格子，空心棒，具有封闭的不可渗透空腔或空腔的内部中空管，环形颗粒; 呈椭圆形，颗粒状或板状的细长颗粒; 具有闭合的不可渗透空腔或腔体的气缸; 具有梳状多通道结构的块，具有贯穿椭圆或多边形横截面的通道; 该多边形具有至少三个边，并且块包含的通道具有椭圆或多边形横截面，多边形边的最小数目等于3，具有3D梳形拱形可渗透或不可渗透结构的块，其中块形状为球体或常规/不规则平行六面体，由以下材料之一制成：陶瓷，玻璃制品，玻璃陶瓷，水泥，膨胀土，轻质混凝土，聚合物和金属，不锈钢或碳钢。中空杆可以具有封闭边缘和锋利的斜边。椭圆形或小颗粒形式的细长颗粒可能在内部具有封闭的不渗透空腔。

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