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    Method of fracturing multiple zones within a well using propellant pre-fracturing
    1.
    发明授权
    Method of fracturing multiple zones within a well using propellant pre-fracturing 有权
    使用推进剂预压裂压裂井内多个区域的方法

    公开(公告)号：US09027641B2

    公开(公告)日：2015-05-12

    申请号：US13198962

    申请日：2011-08-05

    申请人： Olga Petrovna Alekseenko ,  Alexander F Zazovsky ,  Dmitry Ivanovich Potapenko ,  Christopher N Fredd

    发明人： Olga Petrovna Alekseenko ,  Alexander F Zazovsky ,  Dmitry Ivanovich Potapenko ,  Christopher N Fredd

    IPC分类号： E21B43/26 ,  E21B43/14

    CPC分类号： E21B43/26 ,  E21B33/124 ,  E21B43/116 ,  E21B43/14 ,  E21B43/267

    摘要： A method of fracturing multiple zones within a wellbore formed in a subterranean formation is carried out by forming flow-through passages in two or more zones within the wellbore that are spaced apart from each other along the wellbore. The flow-through passages are arranged into clusters, where the directions of all flow-through passages, which belong to the same cluster, are aligned within a single plane (cluster plane). At least one cluster of flow-through passages is formed in each zone. The clusters within each zone have characteristics different from those of other zones provided by orienting the cluster planes at different angles relative to principal in-situ stresses and by placing them into different locations along the wellbore in each of the two or more zones. A propellant pre-fracturing treatment is then performed in the two or more zones to create initial fractures (pre-fractures) in each of the two or more zones. The fracturing fluid in the fracturing treatment is provided at a pressure that is above the pre-fracture propagation pressure of one of the two or more zones to facilitate fracturing of said one of the two or more zones. The pressure of the fracturing fluid is below the pre-fracture propagation pressure of any other non-treated zones of the two or more zones. The isolating of the treated zone is then performed. The fracturing process is then repeated for at least one or more non-treated zones of the two or more zones.

    摘要翻译： 通过在井筒内沿着井眼彼此间隔开的两个或更多个区域中形成流通通道来进行在地下地层中形成的井眼内压裂多个区域的方法。 流通通道被布置成簇，其中属于相同簇的所有流通通道的方向在单个平面（簇平面）内对准。 在每个区域中形成至少一组流通通道。 每个区域内的簇具有不同于通过相对于主要原位应力以不同角度定向簇平面而提供的其它区域的特征，并且通过将它们放置在沿两个或更多个区域中的每个区域中的井筒的不同位置。 然后在两个或更多个区域中进行推进剂预压裂处理，以在两个或更多个区域的每一个区域中产生初始裂缝（预裂缝）。 在压裂处理中的压裂液的压力高于两个或更多个区域中的一个区域的裂缝前传播压力，以促进两个或更多个区域中的所述一个区域的压裂。 压裂液的压力低于两个或多个区域的任何其他未处理区域的裂缝前传播压力。 然后进行处理区域的分离。 然后对于两个或更多个区域的至少一个或多个未处理区域重复断裂过程。

    Method of fracturing multiple zones within a well
    2.
    发明授权
    Method of fracturing multiple zones within a well 有权
    破裂井内多个区域的方法

    公开(公告)号：US09121272B2

    公开(公告)日：2015-09-01

    申请号：US13204392

    申请日：2011-08-05

    申请人： Dmitry Ivanovich Potapenko ,  Bruno Lecerf ,  Olga Petrovna Alekseenko ,  Christopher N Fredd ,  Elena Nikolaevna Tarasova ,  Oleg Medvedev ,  Matthew Robert Gillard

    发明人： Dmitry Ivanovich Potapenko ,  Bruno Lecerf ,  Olga Petrovna Alekseenko ,  Christopher N Fredd ,  Elena Nikolaevna Tarasova ,  Oleg Medvedev ,  Matthew Robert Gillard

    IPC分类号： E21B43/26 ,  E21B43/14

    CPC分类号： E21B43/26 ,  E21B43/14

    摘要： A method of fracturing multiple zones within a wellbore formed in a subterranean formation is carried out by forming flow-through passages in two or more zones within the wellbore that are spaced apart from each other along the length of a portion of the wellbore. The flow-through passages within each zone have different characteristics provided by orienting the flow-through passages in directions in each of the two or more zones relative to a selected direction to provide differences in fracture initiation pressures within each of the two or more zones. A fracturing fluid is introduced into the wellbore in a fracturing treatment. The fracturing fluid in the fracturing treatment is provided at a pressure that is above the fracture initiation pressure of one of the two or more zones to facilitate fracturing of said one of two or more zones while remaining below the fracture initiation pressure of any other non-fractured zones of the two or more zones. The process is repeated for at least one or more non-fractured zones of the two or more zones.

    摘要翻译： 通过在井筒内的两个或更多个区域中形成沿着井眼的一部分的长度彼此分开的区域中的流通通道来进行在地下地层中形成的井眼内压裂多个区域的方法。 每个区域内的流通通道具有不同的特性，其特征在于通过在两个或多个区域中的每一个中相对于所选方向的方向定向流通通道，以提供两个或更多个区域的每个区域内的断裂起始压力的差异。 在压裂处理中将压裂液引入井眼。 压裂处理中的压裂液的压力高于两个或更多个区域之一的断裂开始压力，以促进两个或多个区域中的所述一个区域的压裂，同时保持在任何其他非区域的断裂起始压力以下， 两个或多个区域的断裂带。 对于两个或更多个区域的至少一个或多个非断裂区域重复该过程。

    Hydraulic fracturing proppants
    3.
    发明授权
    Hydraulic fracturing proppants 有权
    水力压裂支撑剂

    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。

    Hydraulic Fracturing Proppants
    4.
    发明申请
    Hydraulic Fracturing Proppants 有权
    液压压裂助剂

    公开(公告)号：US20110180259A1

    公开(公告)日：2011-07-28

    申请号：US13059090

    申请日：2008-08-21

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

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

    IPC分类号： E21B43/267

    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。