公开(公告)号：US08991494B2

公开(公告)日：2015-03-31

申请号：US13059090

申请日：2008-08-21

申请人： Dean Willberg ,  Christopher N Fredd ,  Dina Andreevna Goloshchapova ,  Sergey Mikhailovich MakaryChev-Mikhailov

发明人： Dean Willberg ,  Christopher N Fredd ,  Dina Andreevna Goloshchapova ,  Sergey Mikhailovich MakaryChev-Mikhailov

IPC分类号： E21B43/267 ,  C09K8/80 ,  C09K8/68 ,  C09K8/88 ,  E21B43/26

CPC分类号： E21B43/267 ,  C09K8/68 ,  C09K8/80 ,  C09K8/805 ,  C09K8/88 ,  C09K2208/08 ,  C09K2208/28 ,  E21B43/261

摘要： A method is given for treating a wellbore in a subterranean formation by hydraulic fracturing, slickwater fracturing, gravel packing, and the like, by using plate-like materials as some or all of the proppant or gravel. The plate-like materials are particularly useful in complex fracture systems, for example in shales. They may be used as from about 20 to about 100% of the proppant. Relative to conventional proppants, plate-like proppants demonstrate (a) enhanced crush resistance of the proppant due to better stress distribution among proppant particles, (b) diminished proppant embedment into formation fracture faces due to the greater contact surface area of proppant particles with the formation, (c) better proppant transport due to lower proppant settling rates, (d) deeper penetration into branched and fine fracture networks, and (e) enhanced proppant flowback control. Preferred plate-like proppants are layered rocks and minerals; most preferred is mica.

摘要翻译： 通过使用板状材料作为一些或全部支撑剂或砾石，给出了通过水力压裂，水泥压裂，砾石填充等处理地层中的井眼的方法。 板状材料在复合断裂系统中特别有用，例如在页岩中。 它们可以用作支撑剂的约20至约100％。 相对于常规支撑剂，板状支撑剂表现出（a）由于支撑剂颗粒之间更好的应力分布，支撑剂的抗压缩性得到提高，（b）由于支撑剂颗粒的接触表面积越大，支撑剂嵌入到地层断裂面中， 形成，（c）由于较低的支撑剂沉降速率，更好的支撑剂运输，（d）更深入渗透到分支和细裂缝网络，（e）增强的支撑剂回流控制。 优选的板状支撑剂是分层岩石和矿物; 最喜欢的是云母。