Method of treating subterranean formations using mixed density proppants or sequential proppant stages
    1.
    发明申请
    Method of treating subterranean formations using mixed density proppants or sequential proppant stages 有权
    使用混合密度支撑剂或连续支撑剂阶段处理地下地层的方法

    公开(公告)号:US20080032898A1

    公开(公告)日:2008-02-07

    申请号:US11708597

    申请日:2007-02-20

    IPC分类号: C09K8/02

    摘要: An increase in effective propped lengths is evidenced in hydraulic fracturing treatments by the use of ultra lightweight (ULW) proppants. The ULW proppants have a density less than or equal to 2.45 g/cc and may be used as a mixture in a first proppant stage wherein at least one of the proppants is a ULW proppant. Alternatively, sequential proppant stages may be introduced into the formation wherein at least one of the proppant stages contain a ULW proppant and where at least one of the following conditions prevails: (i.) the density differential between the first proppant stage and the second proppant stage is greater than or equal to 0.2 g/cc; (ii.) both the first proppant stage and the second proppant stage contain a ULW proppant; (iii.) the rate of injection of the second proppant stage into the fracture is different from the rate of injection of the first proppant stage; or (iv.) the particle size of the second proppant stage is different from the particle size of the first proppant stage.

    摘要翻译: 通过使用超轻质(ULW)支撑剂在水力压裂处理中证明有效支撑长度的增加。 ULW支撑剂具有小于或等于2.45g / cc的密度,并且可以在第一支撑剂阶段中用作混合物,其中至少一种支撑剂是ULW支撑剂。 或者,连续的支撑剂阶段可以被引入地层,其中支撑剂阶段中的至少一个包含ULW支撑剂,并且其中以下条件中的至少一个占优势:(i)第一支撑剂阶段和第二支撑剂之间的密度差 阶段大于或等于0.2g / cc; (ii)第一支撑剂阶段和第二支撑剂阶段都包含ULW支撑剂; (iii)第二支撑剂阶段进入裂缝的速率与第一支撑剂阶段的注入速率不同; 或(iv),第二支撑剂阶段的粒径不同于第一支撑剂阶段的粒度。

    Method of treating subterranean formations using sequential proppant stages
    2.
    发明授权
    Method of treating subterranean formations using sequential proppant stages 有权
    使用连续支撑剂阶段处理地下地层的方法

    公开(公告)号:US08127850B2

    公开(公告)日:2012-03-06

    申请号:US13079636

    申请日:2011-04-04

    IPC分类号: E21B43/267

    摘要: An increase in effective propped lengths is evidenced in hydraulic fracturing treatments by the use of ultra lightweight (ULW) proppants. The ULW proppants have a density less than or equal to 2.45 g/cc and may be used as a mixture in a first proppant stage wherein at least one of the proppants is a ULW proppant. Alternatively, sequential proppant stages may be introduced into the formation wherein at least one of the proppant stages contain a ULW proppant and where at least one of the following conditions prevails: (i.) the density differential between the first proppant stage and the second proppant stage is greater than or equal to 0.2 g/cc; (ii.) both the first proppant stage and the second proppant stage contain a ULW proppant; (iii.) the rate of injection of the second proppant stage into the fracture is different from the rate of injection of the first proppant stage; or (iv.) the particle size of the second proppant stage is different from the particle size of the first proppant stage.

    摘要翻译: 通过使用超轻质(ULW)支撑剂在水力压裂处理中证明有效支撑长度的增加。 ULW支撑剂具有小于或等于2.45g / cc的密度,并且可以在第一支撑剂阶段中用作混合物,其中至少一种支撑剂是ULW支撑剂。 或者,连续的支撑剂阶段可以被引入地层,其中支撑剂阶段中的至少一个包含ULW支撑剂,并且其中以下条件中的至少一个占优势:(i)第一支撑剂阶段和第二支撑剂之间的密度差 阶段大于或等于0.2g / cc; (ii)第一支撑剂阶段和第二支撑剂阶段都包含ULW支撑剂; (iii)第二支撑剂阶段进入裂缝的速率与第一支撑剂阶段的注入速率不同; 或(iv),第二支撑剂阶段的粒径不同于第一支撑剂阶段的粒度。

    Method of treating subterranean formations using mixed density proppants or sequential proppant stages
    3.
    发明授权
    Method of treating subterranean formations using mixed density proppants or sequential proppant stages 有权
    使用混合密度支撑剂或连续支撑剂阶段处理地下地层的方法

    公开(公告)号:US07472751B2

    公开(公告)日:2009-01-06

    申请号:US11708597

    申请日:2007-02-20

    IPC分类号: E21B43/46

    摘要: An increase in effective propped lengths is evidenced in hydraulic fracturing treatments by the use of ultra lightweight (ULW) proppants. The ULW proppants have a density less than or equal to 2.45 g/cc and may be used as a mixture in a first proppant stage wherein at least one of the proppants is a ULW proppant. Alternatively, sequential proppant stages may be introduced into the formation wherein at least one of the proppant stages contain a ULW proppant and where at least one of the following conditions prevails: (i.) the density differential between the first proppant stage and the second proppant stage is greater than or equal to 0.2 g/cc; (ii.) both the first proppant stage and the second proppant stage contain a ULW proppant; (iii.) the rate of injection of the second proppant stage into the fracture is different from the rate of injection of the first proppant stage; or (iv.) the particle size of the second proppant stage is different from the particle size of the first proppant stage.

    摘要翻译: 通过使用超轻质(ULW)支撑剂在水力压裂处理中证明有效支撑长度的增加。 ULW支撑剂具有小于或等于2.45g / cc的密度,并且可以在第一支撑剂阶段中用作混合物,其中至少一种支撑剂是ULW支撑剂。 或者,连续的支撑剂阶段可以被引入地层,其中支撑剂阶段中的至少一个包含ULW支撑剂,并且其中以下条件中的至少一个占优势:(i)第一支撑剂阶段和第二支撑剂之间的密度差 阶段大于或等于0.2g / cc; (ii)第一支撑剂阶段和第二支撑剂阶段都包含ULW支撑剂; (iii)第二支撑剂阶段进入裂缝的速率与第一支撑剂阶段的注入速率不同; 或(iv),第二支撑剂阶段的粒径不同于第一支撑剂阶段的粒度。

    Method of treatment subterranean formations using multiple proppant stages or mixed proppants
    4.
    发明授权
    Method of treatment subterranean formations using multiple proppant stages or mixed proppants 有权
    使用多个支撑剂阶段或混合支撑剂处理地下地层的方法

    公开(公告)号:US07210528B1

    公开(公告)日:2007-05-01

    申请号:US10803258

    申请日:2004-03-18

    IPC分类号: E21B43/46

    摘要: An increase in effective propped lengths is evidenced in hydraulic fracturing treatments by the use of ultra lightweight (ULW) proppants. The ULW proppants have a density less than or equal to 2.45 g/cc and may be used as a mixture in a first proppant stage wherein at least one of the proppants is a ULW proppant. Alternatively, sequential proppant stages may be introduced into the formation wherein at least one of the proppant stages contain a ULW proppant and where at least one of the following conditions prevails: (i.) the density differential between the first proppant stage and the second proppant stage is greater than or equal to 0.2 g/cc; (ii.) both the first proppant stage and the second proppant stage contain a ULW proppant; (iii.) the rate of injection of the second proppant stage into the fracture is different from the rate of injection of the first proppant stage; or (iv.) the particle size of the second proppant stage is different from the particle size of the first proppant stage.

    摘要翻译: 通过使用超轻质(ULW)支撑剂在水力压裂处理中证明有效支撑长度的增加。 ULW支撑剂具有小于或等于2.45g / cc的密度,并且可以在第一支撑剂阶段中用作混合物,其中至少一种支撑剂是ULW支撑剂。 或者,连续的支撑剂阶段可以被引入地层,其中支撑剂阶段中的至少一个包含ULW支撑剂,并且其中以下条件中的至少一个占优势:(i)第一支撑剂阶段和第二支撑剂之间的密度差 阶段大于或等于0.2g / cc; (ii)第一支撑剂阶段和第二支撑剂阶段都包含ULW支撑剂; (iii)第二支撑剂阶段进入裂缝的速率与第一支撑剂阶段的注入速率不同; 或(iv),第二支撑剂阶段的粒径不同于第一支撑剂阶段的粒度。

    METHOD OF TREATING SUBTERRANEAN FORMATIONS USING MIXED DENSITY PROPPANTS OR SEQUENTIAL PROPPANT STAGES
    5.
    发明申请
    METHOD OF TREATING SUBTERRANEAN FORMATIONS USING MIXED DENSITY PROPPANTS OR SEQUENTIAL PROPPANT STAGES 有权
    使用混合密度拟合或顺序推荐阶段处理亚型的方法

    公开(公告)号:US20110180260A1

    公开(公告)日:2011-07-28

    申请号:US13079636

    申请日:2011-04-04

    IPC分类号: E21B43/26

    摘要: An increase in effective propped lengths is evidenced in hydraulic fracturing treatments by the use of ultra lightweight (ULW) proppants. The ULW proppants have a density less than or equal to 2.45 g/cc and may be used as a mixture in a first proppant stage wherein at least one of the proppants is a ULW proppant. Alternatively, sequential proppant stages may be introduced into the formation wherein at least one of the proppant stages contain a ULW proppant and where at least one of the following conditions prevails:(i.) the density differential between the first proppant stage and the second proppant stage is greater than or equal to 0.2 g/cc;(ii.) both the first proppant stage and the second proppant stage contain a ULW proppant;(iii.) the rate of injection of the second proppant stage into the fracture is different from the rate of injection of the first proppant stage; or(iv.) the particle size of the second proppant stage is different from the particle size of the first proppant stage.

    摘要翻译: 通过使用超轻质(ULW)支撑剂在水力压裂处理中证明有效支撑长度的增加。 ULW支撑剂具有小于或等于2.45g / cc的密度,并且可以在第一支撑剂阶段中用作混合物,其中至少一种支撑剂是ULW支撑剂。 或者,连续的支撑剂阶段可以被引入地层,其中支撑剂阶段中的至少一个包含ULW支撑剂,并且其中以下条件中的至少一个占优势:(i)第一支撑剂阶段和第二支撑剂之间的密度差 阶段大于或等于0.2g / cc; (ii)第一支撑剂阶段和第二支撑剂阶段都包含ULW支撑剂; (iii)第二支撑剂阶段进入裂缝的速率与第一支撑剂阶段的注入速率不同; 或(iv),第二支撑剂阶段的粒径不同于第一支撑剂阶段的粒度。

    Method of Treating Subterranean Formations Using Mixed Density Proppants or Sequential Proppant Stages
    6.
    发明申请
    Method of Treating Subterranean Formations Using Mixed Density Proppants or Sequential Proppant Stages 有权
    使用混合密度助剂或连续支撑剂阶段处理地下地层的方法

    公开(公告)号:US20090107674A1

    公开(公告)日:2009-04-30

    申请号:US12347671

    申请日:2008-12-31

    IPC分类号: E21B43/267

    摘要: An increase in effective propped lengths is evidenced in hydraulic fracturing treatments by the use of ultra lightweight (ULW) proppants. The ULW proppants have a density less than or equal to 2.45 g/cc and may be used as a mixture in a first proppant stage wherein at least one of the proppants is a ULW proppant. Alternatively, sequential proppant stages may be introduced into the formation wherein at least one of the proppant stages contain a ULW proppant and where at least one of the following conditions prevails: (i.) the density differential between the first proppant stage and the second proppant stage is greater than or equal to 0.2 g/cc; (ii.) both the first proppant stage and the second proppant stage contain a ULW proppant; (iii.) the rate of injection of the second proppant stage into the fracture is different from the rate of injection of the first proppant stage; or (iv.) the particle size of the second proppant stage is different from the particle size of the first proppant stage.

    摘要翻译: 通过使用超轻质(ULW)支撑剂在水力压裂处理中证明有效支撑长度的增加。 ULW支撑剂具有小于或等于2.45g / cc的密度,并且可以在第一支撑剂阶段中用作混合物,其中至少一种支撑剂是ULW支撑剂。 或者,连续的支撑剂阶段可以被引入地层,其中支撑剂阶段中的至少一个包含ULW支撑剂,并且其中以下条件中的至少一个占优势:(i)第一支撑剂阶段和第二支撑剂之间的密度差 阶段大于或等于0.2g / cc; (ii)第一支撑剂阶段和第二支撑剂阶段都包含ULW支撑剂; (iii)第二支撑剂阶段进入裂缝的速率与第一支撑剂阶段的注入速率不同; 或(iv),第二支撑剂阶段的粒径不同于第一支撑剂阶段的粒度。

    Method of treating subterranean formations using mixed density proppants or sequential proppant stages
    7.
    发明授权
    Method of treating subterranean formations using mixed density proppants or sequential proppant stages 有权
    使用混合密度支撑剂或连续支撑剂阶段处理地下地层的方法

    公开(公告)号:US07918277B2

    公开(公告)日:2011-04-05

    申请号:US12347671

    申请日:2008-12-31

    IPC分类号: E21B43/267

    摘要: An increase in effective propped lengths is evidenced in hydraulic fracturing treatments by the use of ultra lightweight (ULW) proppants. The ULW proppants have a density less than or equal to 2.45 g/cc and may be used as a mixture in a first proppant stage wherein at least one of the proppants is a ULW proppant. Alternatively, sequential proppant stages may be introduced into the formation wherein at least one of the proppant stages contain a ULW proppant and where at least one of the following conditions prevails: (i.) the density differential between the first proppant stage and the second proppant stage is greater than or equal to 0.2 g/cc; (ii.) both the first proppant stage and the second proppant stage contain a ULW proppant; (iii.) the rate of injection of the second proppant stage into the fracture is different from the rate of injection of the first proppant stage; or (iv.) the particle size of the second proppant stage is different from the particle size of the first proppant stage.

    摘要翻译: 通过使用超轻质(ULW)支撑剂在水力压裂处理中证明有效支撑长度的增加。 ULW支撑剂具有小于或等于2.45g / cc的密度,并且可以在第一支撑剂阶段中用作混合物,其中至少一种支撑剂是ULW支撑剂。 或者,连续的支撑剂阶段可以被引入地层,其中支撑剂阶段中的至少一个包含ULW支撑剂,并且其中以下条件中的至少一个占优势:(i)第一支撑剂阶段和第二支撑剂之间的密度差 阶段大于或等于0.2g / cc; (ii)第一支撑剂阶段和第二支撑剂阶段都包含ULW支撑剂; (iii)第二支撑剂阶段进入裂缝的速率与第一支撑剂阶段的注入速率不同; 或(iv),第二支撑剂阶段的粒径不同于第一支撑剂阶段的粒度。