METHOD OF FRACTURING SUBTERRANEAN FORMATIONS WITH CROSSLINKED FLUID
    3.
    发明申请
    METHOD OF FRACTURING SUBTERRANEAN FORMATIONS WITH CROSSLINKED FLUID 有权
    使用交联流体破碎副产物的方法

    公开(公告)号:US20130153233A1

    公开(公告)日:2013-06-20

    申请号:US13764638

    申请日:2013-02-11

    IPC分类号: E21B43/267

    摘要: Subterranean formations, such as tight gas formations, may be subjected to hydraulic fracturing by introducing into the formation a fracturing fluid of an aqueous fluid, a hydratable polymer, a crosslinking agent and proppant. The fracturing fluid is prepared in a blender and then pumped from the blender into the wellbore which penetrates the formation. The fluid enters the reservoir through an entrance site. The apparent viscosity of the fluid decreases distally from the entrance site such that at least one of the following conditions prevails at in situ conditions:(a) the apparent viscosity of the fracturing fluid 100 feet from the entrance site is less than 10 percent of the apparent viscosity of the fracturing fluid at the entrance site;(b) the apparent viscosity of the fracturing fluid 15 minutes after introduction into the entrance site is less than 15% of the apparent viscosity of the fracturing fluid at the entrance site; or(c) the apparent viscosity of the fracturing fluid is less than 10 cP within 15 minutes after being introduced through the entrance site.

    摘要翻译: 诸如紧密气体组合的地下地层可以通过向地层中引入含水流体,可水合聚合物,交联剂和支撑剂的压裂流体而进行水力压裂。 压裂液在混合器中制备,然后从混合器泵入穿透地层的井眼。 流体通过入口进入储存器。 流体的表观粘度从入口部位向远端减小,使得以下条件中的至少一个在原位条件下占优势:(a)距离入口部位100英尺的压裂液的表观粘度小于入口部位的10% 压裂液在入口处的表观粘度; (b)入口处15分钟后压裂液的表观粘度小于入口处压裂液的表观粘度的15%; 或(c)在通过入口部位引入后15分钟内压裂液的表观粘度小于10cP。

    Method for improving isolation of flow to completed perforated intervals
    4.
    发明授权
    Method for improving isolation of flow to completed perforated intervals 有权
    改善隔离到完成的穿孔间隔的方法

    公开(公告)号:US09580642B2

    公开(公告)日:2017-02-28

    申请号:US14556883

    申请日:2014-12-01

    摘要: A method for building a plug in a horizontal wellbore using a fluid pill containing a suspended well treatment composite. The well treatment composite contains a core comprising at least one deformable particulate and at least one dissolvable diverter. At least a portion of the surface of the core is coated with at least one viscosifying polymer and at least one crosslinking agent. The fluid pill is pumped into the wellbore at the end of a fracturing treatment and the fluid pill may be displaced by a displacement fluid. The fluid pill may be diverted to an area of lower permeability by disassociating the dissolvable diverter from the core. The disassociated diverter blocks an area of higher permeability. The sized particle distribution of the diverter is sufficient to at least partially block the penetration of fluid into the high permeability zone. In the lower permeability zone, a thickened gel is formed by the in-situ reaction of the viscosifying polymer and crosslinking. Deformable particulates in the gelled fluid form a bridge plug.

    摘要翻译: 一种使用含有悬浮井处理复合材料的流体丸在水平井筒中建造塞子的方法。 井处理复合材料包含一个包含至少一个可变形颗粒和至少一个可溶解转向器的芯。 芯的表面的至少一部分涂覆有至少一种增粘聚合物和至少一种交联剂。 在压裂处理结束时将流体药液泵送到井眼中,并且流体药片可能被位移流体置换。 通过使可溶解的分流器与芯分离,可以将流体药片转移到较低渗透性的区域。 拆卸的分流器阻挡了较高渗透率的区域。 分流器的尺寸的颗粒分布足以至少部分地阻止流体渗入高渗透性区域。 在较低渗透性区域中,通过增粘聚合物的原位反应和交联而形成增稠的凝胶。 胶凝液中的可变形颗粒形成桥塞。

    METHOD OF FRACTURING SUBTERRANEAN FORMATIONS WITH CROSSLINKED FLUID
    5.
    发明申请
    METHOD OF FRACTURING SUBTERRANEAN FORMATIONS WITH CROSSLINKED FLUID 有权
    使用交联流体破碎副产物的方法

    公开(公告)号:US20160069175A1

    公开(公告)日:2016-03-10

    申请号:US14945174

    申请日:2015-11-18

    IPC分类号: E21B43/267

    摘要: Subterranean formations, such as tight gas formations, may be subjected to hydraulic fracturing by introducing into the formation a fracturing fluid of an aqueous fluid, a hydratable polymer comprising guar or a guar derivative, a borate crosslinking agent and proppant. The fracturing fluid is prepared in a blender and then pumped from the blender into the wellbore which penetrates the formation. The fluid enters the reservoir through an entrance site. The apparent viscosity of the fluid decreases distally from the entrance site such that at least one of the following conditions prevails at in situ conditions: (a) the apparent viscosity of the fracturing fluid 100 feet from the entrance site is less than 10 percent of the apparent viscosity of the fracturing fluid at the entrance site; (b) the apparent viscosity of the fracturing fluid 15 minutes after introduction into the entrance site is less than 15% of the apparent viscosity of the fracturing fluid at the entrance site; or (c) the apparent viscosity of the fracturing fluid is less than 10 cP within 15 minutes after being introduced through the entrance site.

    摘要翻译: 诸如紧密气体组合的地下地层可以通过向地层中引入水性流体的压裂流体,包含瓜尔胶或瓜尔胶衍生物的可水合聚合物,硼酸盐交联剂和支撑剂而进行水力压裂。 压裂液在混合器中制备,然后从混合器泵入穿透地层的井眼。 流体通过入口进入储存器。 流体的表观粘度从入口部位向远端减小,使得以下条件中的至少一个在原位条件下占优势:(a)距离入口部位100英尺的压裂液的表观粘度小于入口部位的10% 压裂液在入口处的表观粘度; (b)入口处15分钟后压裂液的表观粘度小于入口处压裂液的表观粘度的15%; 或(c)在通过入口部位引入后15分钟内压裂液的表观粘度小于10cP。

    Method of fracturing subterranean formations with crosslinked fluid
    6.
    发明授权
    Method of fracturing subterranean formations with crosslinked fluid 有权
    用交联流体压裂地下地层的方法

    公开(公告)号:US09194223B2

    公开(公告)日:2015-11-24

    申请号:US13764638

    申请日:2013-02-11

    摘要: Subterranean formations, such as tight gas formations, may be subjected to hydraulic fracturing by introducing into the formation a fracturing fluid of an aqueous fluid, a hydratable polymer, a crosslinking agent and proppant. The fluid enters the reservoir through an entrance site. The apparent viscosity of the fluid decreases distally from the entrance site such that at in situ conditions: (a) the apparent viscosity of the fracturing fluid 100 feet from the entrance site is less than 10 percent of the apparent viscosity of the fracturing fluid at the entrance site; (b) the apparent viscosity of the fracturing fluid 15 minutes after introduction into the entrance site is less than 15% of the apparent viscosity of the fracturing fluid at the entrance site; and/or (c) the apparent viscosity of the fracturing fluid is less than 10 cP within 15 minutes after being introduced through the entrance site.

    摘要翻译: 诸如紧密气体组合的地下地层可以通过向地层中引入含水流体,可水合聚合物,交联剂和支撑剂的压裂流体而进行水力压裂。 流体通过入口进入储存器。 流体的表观粘度从入口部位向远端减小,使得在原位条件下:(a)距入口部位100英尺的压裂液的表观粘度小于压裂液在表面粘度的10% 入口处 (b)入口处15分钟后压裂液的表观粘度小于入口处压裂液的表观粘度的15%; 和/或(c)在通过入口部位引入后15分钟内压裂液的表观粘度小于10cP。

    METHOD OF USING CONTROLLED RELEASE TRACERS
    7.
    发明申请
    METHOD OF USING CONTROLLED RELEASE TRACERS 有权
    使用控制释放追踪器的方法

    公开(公告)号:US20130126158A1

    公开(公告)日:2013-05-23

    申请号:US13678431

    申请日:2012-11-15

    IPC分类号: E21B47/00

    摘要: Fluids produced from a fractured subterranean formation may be monitored by pumping into the well a fracturing fluid which contains a tracer. The method may be used to monitor produced hydrocarbons as well as produced water. The tracer may also be used in a sand control, frac pack or acid fracturing operation. The tracer is a component of a composite where it may be immobilized within a matrix (such as an emulsion) or porous particulate, onto a support or compressed with a binder into a solid particulate. The tracer may be slowly released from the composite.

    摘要翻译: 从断裂的地下地层产生的流体可以通过泵送到井中来监测包含示踪剂的压裂流体。 该方法可用于监测所生产的烃以及生产的水。 示踪剂也可用于防砂,压裂或酸压裂操作。 示踪剂是复合材料的组分,其中可将其固定在基质(例如乳液)或多孔颗粒中,或固定在载体上或用粘合剂压制成固体颗粒。 示踪剂可以从复合材料缓慢释放。

    Method of fracturing subterranean formations with crosslinked fluid
    8.
    发明授权
    Method of fracturing subterranean formations with crosslinked fluid 有权
    用交联流体压裂地下地层的方法

    公开(公告)号:US09410415B2

    公开(公告)日:2016-08-09

    申请号:US14945174

    申请日:2015-11-18

    摘要: Subterranean formations are subjected to hydraulic fracturing with an aqueous fracturing fluid having guar or a derivative thereof, a borate crosslinking agent and proppant. The fracturing fluid is prepared in a blender and then pumped into the wellbore through an entrance site. The apparent viscosity of the fluid decreases distally from the entrance site such that (i) the apparent viscosity of the fracturing fluid 100 feet from the entrance site is less than 10 percent of the apparent viscosity of the fracturing fluid at the entrance site; (ii) the apparent viscosity of the fracturing fluid 15 minutes after introduction into the entrance site is less than 15% of the apparent viscosity of the fracturing fluid at the entrance site; or (iii) the apparent viscosity of the fracturing fluid is less than 10 cP within 15 minutes after being introduced through the entrance site.

    摘要翻译: 用含有瓜尔胶或其衍生物的水性压裂液,硼酸盐交联剂和支撑剂对地下地层进行水力压裂。 压裂液在混合器中制备,然后通过入口部位泵入井眼。 流体的表观粘度从入口部位向远端减少,使得(i)从入口处100英尺的压裂液的表观粘度小于入口处压裂液的表观粘度的10%; (ii)引入入口15分钟后的压裂液的表观粘度小于入口处压裂液的表观粘度的15% 或(iii)在通过入口部位引入后15分钟内压裂液的表观粘度小于10cP。