公开(公告)号：US08188015B2

公开(公告)日：2012-05-29

申请号：US12783182

申请日：2010-05-19

申请人： James B. Crews ,  Tianping Huang ,  Allen D. Gabrysch ,  James H. Treadway ,  John R. Willingham ,  Patrick A. Kelly ,  William R. Wood

发明人： James B. Crews ,  Tianping Huang ,  Allen D. Gabrysch ,  James H. Treadway ,  John R. Willingham ,  Patrick A. Kelly ,  William R. Wood

IPC分类号： C09K8/582 ,  C09K8/584 ,  C09K8/86

CPC分类号： C09K8/68 ,  C09K8/602 ,  C09K2208/24 ,  C09K2208/26 ,  C09K2208/30

摘要： Viscoelastic surfactant (VES) gelled aqueous fluids containing water, a VES, an internal breaker, a VES stabilizer, a fluid loss control agent and a viscosity enhancer are useful as treating fluids and particularly as fracturing fluids for subterranean formations. These VES-based fluids have faster and more complete clean-up than polymer-based fracturing fluids. The use of an internal breaker permits ready removal of the unique VES micelle based pseudo-filter cake with several advantages including reducing the typical VES loading and total fluid volume since more VES fluid stays within the fracture, generating a more optimum fracture geometry for enhanced reservoir productivity, and treating reservoirs with permeability above the present VES limit of approximately 400 md to at least 2000 md.

摘要翻译： 粘弹性表面活性剂（VES）胶凝含水的含水流体，VES，内部破碎剂，VES稳定剂，流体损失控制剂和粘度增强剂可用作处理流体，特别是用于地下地层的压裂流体。 这些基于VES的流体比基于聚合物的压裂液具有更快和更完整的清理。 内部断路器的使用允许准备移除独特的基于VES胶束的假滤饼，具有几个优点，包括降低典型的VES载荷和总体积体积，因为更多的VES流体停留在裂缝内，为增强的储层产生更优化的断裂几何 生产力，并处理渗透率高于目前VES极限约400 md至2000 md的油藏。

公开(公告)号：US07942215B2

公开(公告)日：2011-05-17

申请号：US12606502

申请日：2009-10-27

申请人： Tianping Huang ,  James B. Crews ,  John R. Willingham

发明人： Tianping Huang ,  James B. Crews ,  John R. Willingham

IPC分类号： E21B21/00 ,  C09K8/06

CPC分类号： C09K8/12 ,  C09K8/506 ,  C09K8/524 ,  C09K2208/26 ,  C09K2208/30

摘要： Compositions including relatively low reactivity acids, mixed with viscoelastic surfactants (VESs) and internal breakers may serve as drilling fluids to open underground hydrocarbon reservoirs with carbonate contents of 10 wt % or above. The drilling fluids have low viscosities in the drilling pipe. After the fluid flows out of the drill bit, the acids react with carbonates in the formation thereby increasing the pH of the drilling fluids causing the VES to gel the fluid at the bottom of the hole and the downhole annulus between the drilling pipe and the formation rock. The viscosified drilling fluid will reduce fluid loss and will carry no dissolved drilling debris to the surface. After drilling through the targeted formation, the internal breakers in the viscosified drilling fluids will break down the fluids to permit their removal, and the well is ready to produce with very little or no near well bore damage.

摘要翻译： 包括相对低反应性酸，与粘弹性表面活性剂（VES）和内部破碎剂混合的组合物可用作钻井液以打开碳酸盐含量为10重量％或更高的地下储层。 钻井液在钻井管中的粘度低。 在液体流出钻头之后，酸与地层中的碳酸盐反应，从而增加钻井液的pH，导致VES凝结孔底部的流体和钻井管与地层之间的井下环隙 岩。 增稠的钻井液将减少流体损失，并且不会在表面上携带溶解的钻屑。 在钻井目标地层之后，粘稠钻井液中的内部破碎机将分解流体以允许它们的移除，并且该井准备好产生很少或没有接近井筒的损坏。

公开(公告)号：US20110098377A1

公开(公告)日：2011-04-28

申请号：US12606464

申请日：2009-10-27

申请人： Tianping Huang ,  James B. Crews ,  John R. Willingham

发明人： Tianping Huang ,  James B. Crews ,  John R. Willingham

IPC分类号： C09K8/44

CPC分类号： C09K8/805 ,  C04B20/1033 ,  C04B2103/0049 ,  C09K8/508 ,  C09K8/516 ,  E21B43/267 ,  E21B43/32 ,  C04B14/06

摘要： Water production from a subterranean formation is inhibited or controlled by pumping a fluid containing coated particles through a wellbore into the formation. The particles have been previously coated with a relative permeability modifier (RPM). Upon contact with water, the RPM coating expands or swells and inhibits and controls the production of water. The RPM may be a water hydrolyzable polymer having a weight average molecular weight greater than 100,000. The particles may be conventional proppants or gravel.

摘要翻译： 通过将含有涂覆颗粒的流体通过井筒泵入地层来抑制或控制来自地下地层的水产生。 颗粒已经预先用相对磁导率调节剂（RPM）涂覆。 当与水接触时，RPM涂层膨胀或膨胀并抑制和控制水的生成。 RPM可以是重均分子量大于100,000的水可水解聚合物。 颗粒可以是常规的支撑剂或砾石。

公开(公告)号：US07723272B2

公开(公告)日：2010-05-25

申请号：US11679018

申请日：2007-02-26

申请人： James B. Crews ,  Tianping Huang ,  Allen D. Gabrysch ,  James H. Treadway ,  John R. Willingham ,  Patrick A. Kelly ,  William R. Wood

发明人： James B. Crews ,  Tianping Huang ,  Allen D. Gabrysch ,  James H. Treadway ,  John R. Willingham ,  Patrick A. Kelly ,  William R. Wood

IPC分类号： C09K8/582 ,  C09K8/584 ,  C09K8/86

CPC分类号： C09K8/68 ,  C09K8/602 ,  C09K2208/24 ,  C09K2208/26 ,  C09K2208/30

摘要： Viscoelastic surfactant (VES) gelled aqueous fluids containing water, a VES, an internal breaker, a VES stabilizer, a fluid loss control agent and a viscosity enhancer are useful as treating fluids and particularly as fracturing fluids for subterranean formations. These VES-based fluids have faster and more complete clean-up than polymer-based fracturing fluids. The use of an internal breaker permits ready removal of the unique VES micelle based pseudo-filter cake with several advantages including reducing the typical VES loading and total fluid volume since more VES fluid stays within the fracture, generating a more optimum fracture geometry for enhanced reservoir productivity, and treating reservoirs with permeability above the present VES limit of approximately 400 md to at least 2000 md.

摘要翻译： 粘弹性表面活性剂（VES）胶凝含水的含水流体，VES，内部破碎剂，VES稳定剂，流体损失控制剂和粘度增强剂可用作处理流体，特别是用于地下地层的压裂流体。 这些基于VES的流体比基于聚合物的压裂液具有更快和更完整的清理。 内部断路器的使用允许准备移除独特的基于VES胶束的假滤饼，具有几个优点，包括降低典型的VES载荷和总体积体积，因为更多的VES流体停留在裂缝内，为增强的储层产生更优化的裂缝几何形状 生产力，并处理渗透率高于目前VES极限约400 md至2000 md的油藏。

公开(公告)号：US07347266B2

公开(公告)日：2008-03-25

申请号：US11517688

申请日：2006-09-08

申请人： James B. Crews ,  John R. Willingham

发明人： James B. Crews ,  John R. Willingham

IPC分类号： E21B43/27

CPC分类号： C09K8/68 ,  C09K2208/26 ,  C09K2208/30

摘要： Fluids viscosified with viscoelastic surfactants (VESs) may have their viscosities reduced (gels broken) by the direct or indirect action of a breaker composition that contains at least one mineral oil, at least one polyalphaolefin oil, and/or at least one saturated fatty acid. The breaker may initially be dispersed oil droplets in an internal, discontinuous phase of the fluid. In one non-limiting embodiment, the breaker, e.g. mineral oil is added to the fluid after it has been substantially gelled. The breaking composition is believed to act possibly by rearranging, disaggregating or otherwise attacking the micellar structure of the VES-gelled fluid in a non-spontaneous, rate controlled manner at elevated fluid temperatures. In a specific, non-limiting instance, a brine fluid gelled with an amine oxide surfactant can have its viscosity broken with a light, low viscosity paraffinic mineral oil.

摘要翻译： 用粘弹性表面活性剂（VES）粘稠的流体可以通过包含至少一种矿物油，至少一种聚α-烯烃油和/或至少一种饱和脂肪酸的破碎剂组合物的直接或间接作用使其粘度降低（凝胶破裂） 。 断路器可以最初分散在液体的内部不连续相中。 在一个非限制性实施例中，断路器，例如， 矿物油在其基本凝胶化之后加入到流体中。 认为断裂组合物可能通过在升高的液体温度下以非自发的速率控制的方式重新排列，解聚或以其他方式攻击VES凝胶化流体的胶束结构。 在具体的非限制性实例中，用氧化胺表面活性剂凝胶化的盐水溶液可以使其粘度用轻质，低粘度的石蜡矿物油破碎。

公开(公告)号：US20070244015A1

公开(公告)日：2007-10-18

申请号：US11696840

申请日：2007-04-05

申请人： James B. Crews ,  John R. Willingham

发明人： James B. Crews ,  John R. Willingham

IPC分类号： C09K8/80

CPC分类号： C09K8/68 ,  C09K2208/30

摘要： The increased viscosity of aqueous fluids gelled with viscoelastic surfactants (VESs) may be maintained or stabilized by one or more stabilizers added or introduced thereto. The stabilizers are glycols and/or polyols and may stabilize the increased viscosity of VES-gelled fluids effectively over an increased temperature range, e.g. up to 300° F. (149° C.). Even though some VESs used to increase the viscosity of aqueous fluids contain a glycol solvent, the use, addition or introduction of the same or different glycol or a polyol, possibly of increased purity, may improve the viscosity stability of the fluid as a whole.

摘要翻译： 用粘弹性表面活性剂（VES）凝胶化的水溶液的粘度增加可通过一种或多种添加或引入其中的稳定剂来维持或稳定。 稳定剂是二醇和/或多元醇，并且可以在增加的温度范围内有效地稳定增加VES凝胶流体的粘度，例如。 高达300°F（149°C）。 即使一些VES用于提高含水流体的粘度，也含有二醇溶剂，因此可能提高纯度的相同或不同的二醇或多元醇的使用，添加或引入可以改善流体整体的粘度稳定性。