Method of Acidizing a Subterranean Formation with Diverting Foam or Fluid
    1.
    发明申请
    Method of Acidizing a Subterranean Formation with Diverting Foam or Fluid 有权
    用分流泡沫或流体酸化地下地层的方法

    公开(公告)号:US20080121398A1

    公开(公告)日:2008-05-29

    申请号:US11947473

    申请日:2007-11-29

    IPC分类号: E21B43/16

    摘要: A method of acidizing a subterranean formation with a diverting agent composed of a gelled or thickened viscoelastic foam or fluid generated from (i.) an amidoamine oxide gelling agent and (ii.) an acid or foam, water and/or brine. The gelled or thickened foam or fluid may be generated in-situ or introduced directly into the formation by mixing of the amidoamine oxide gelling agent and acid or foam, water and/or brine. As the acid spends, the acidizing fluid thickens. When the acid is further spent, the fluid viscosity declines eventually returning to a low viscosity state, allowing for easy cleanup. The process allows for selective acidizing of less permeable zones of the formation and more uniform stimulation of the hydrocarbon bearing formation.

    摘要翻译: 用由(i。)酰氨基胺氧化物胶凝剂和(ii)酸或泡沫,水和/或盐水产生的胶凝或增稠的粘弹性泡沫或流体组成的转移剂酸化地层的方法。 凝胶或增稠的泡沫或流体可以原位产生或通过混合酰胺胺氧化物胶凝剂和酸或泡沫,水和/或盐水直接引入地层中。 随着酸的消耗,酸化液变稠。 当酸被进一步消耗时,流体粘度下降最终回到低粘度状态,容易清理。 该方法允许选择性酸化地层的较低渗透性区域和对含烃地层的更均匀的刺激。

    Method of acidizing a subterranean formation with diverting foam or fluid
    2.
    发明授权
    Method of acidizing a subterranean formation with diverting foam or fluid 有权
    用转移泡沫或流体酸化地下地层的方法

    公开(公告)号:US07303018B2

    公开(公告)日:2007-12-04

    申请号:US10888494

    申请日:2004-07-12

    IPC分类号: E21B43/16

    摘要: A method of acidizing a subterranean formation with a diverting agent composed of a gelled or thickened viscoelastic foam or fluid generated from (i.) an amidoamine oxide gelling agent and (ii.) an acid or foam, water and/or brine. The gelled or thickened foam or fluid may be generated in-situ or introduced directly into the formation by mixing of the amidoamine oxide gelling agent and acid or foam, water and/or brine. As the acid spends, the acidizing fluid thickens. When the acid is further spent, the fluid viscosity declines eventually returning to a low viscosity state, allowing for easy cleanup. The process allows for selective acidizing of less permeable zones of the formation and more uniform stimulation of the hydrocarbon bearing formation.

    摘要翻译: 用由(i。)酰氨基胺氧化物胶凝剂和(ii)酸或泡沫,水和/或盐水产生的胶凝或增稠的粘弹性泡沫或流体组成的转移剂酸化地层的方法。 凝胶或增稠的泡沫或流体可以原位产生或通过混合酰胺胺氧化物胶凝剂和酸或泡沫,水和/或盐水直接引入地层中。 随着酸的消耗,酸化液变稠。 当酸被进一步消耗时,流体粘度下降最终回到低粘度状态,容易清理。 该方法允许选择性酸化地层的较低渗透性区域和对含烃地层的更均匀的刺激。

    Method of acidizing a subterranean formation with diverting foam or fluid
    3.
    发明授权
    Method of acidizing a subterranean formation with diverting foam or fluid 有权
    用转移泡沫或流体酸化地下地层的方法

    公开(公告)号:US07510009B2

    公开(公告)日:2009-03-31

    申请号:US11947473

    申请日:2007-11-29

    IPC分类号: E21B43/16

    摘要: A method of acidizing a subterranean formation with a diverting agent composed of a gelled or thickened viscoelastic foam or fluid generated from (i.) an amidoamine oxide gelling agent and (ii.) an acid or foam, water and/or brine. The gelled or thickened foam or fluid may be generated in-situ or introduced directly into the formation by mixing of the amidoamine oxide gelling agent and acid or foam, water and/or brine. As the acid spends, the acidizing fluid thickens. When the acid is further spent, the fluid viscosity declines eventually returning to a low viscosity state, allowing for easy cleanup. The process allows for selective acidizing of less permeable zones of the formation and more uniform stimulation of the hydrocarbon bearing formation.

    摘要翻译: 用由(i。)酰氨基胺氧化物胶凝剂和(ii)酸或泡沫,水和/或盐水产生的胶凝或增稠的粘弹性泡沫或流体组成的转移剂酸化地层的方法。 凝胶或增稠的泡沫或流体可以原位产生或通过混合酰胺胺氧化物胶凝剂和酸或泡沫,水和/或盐水直接引入地层中。 随着酸的消耗,酸化液变稠。 当酸被进一步消耗时,流体粘度下降最终回到低粘度状态,容易清理。 该方法允许选择性酸化地层的较低渗透性区域和对含烃地层的更均匀的刺激。

    WELL SERVICING FLUID AND METHOD OF SERVICING A WELL WITH THE FLUID
    6.
    发明申请
    WELL SERVICING FLUID AND METHOD OF SERVICING A WELL WITH THE FLUID 有权
    良好的维护流体和使用流体维护的方法

    公开(公告)号:US20130025870A1

    公开(公告)日:2013-01-31

    申请号:US13193152

    申请日:2011-07-28

    IPC分类号: E21B43/00 C09K8/72

    CPC分类号: C09K8/74

    摘要: A well servicing fluid is disclosed. The well servicing fluid is formulated by combining ingredients comprising: an aqueous based fluid comprising sulfate ions at a concentration greater than 50 mg/l; a chelating agent; and an acid in an amount sufficient to result in the well servicing fluid having a pH of 4.5 or less. A method of servicing a well is also disclosed.

    摘要翻译: 公开了一种维护良好的液体。 维护良好的液体通过组合成分来配制,所述成分包括:含有浓度大于50mg / l的硫酸根离子的含水基流体; 螯合剂; 和足以导致pH值为4.5或更低的维修液的量的酸。 还公开了一种维修井的方法。

    High internal phase ratio water-in-oil emulsion fracturing fluid
    8.
    发明授权
    High internal phase ratio water-in-oil emulsion fracturing fluid 失效
    高内相比油包水乳液压裂液

    公开(公告)号:US5633220A

    公开(公告)日:1997-05-27

    申请号:US300256

    申请日:1994-09-02

    IPC分类号: C09K8/64 C09K3/00

    摘要: A high internal phase ratio water-in-oil emulsion containing an emulsifier comprising a block or graft copolymer the general formula (A-COO).sub.mB or a reaction product of a polyalk(en)yl succinic anhydride and a polar compound having at least one hydroxyl or amino group demonstrates surprisingly low pumping friction pressure losses, high temperature stability and excellent proppant carrying capacity for use as a fracturing fluid in the hydraulic fracturing of subterranean formation.

    摘要翻译: 含有乳化剂的高内相比油包水乳液,其包含通式(A-COO)mB的嵌段或接枝共聚物或多官能(琥珀酸)琥珀酸酐与具有至少一个 羟基或氨基表现出惊人的低泵送摩擦压力损失,高温稳定性和优异的支撑剂承载能力,用作地下地层地层水力压裂中的压裂液。

    Fluid loss control
    9.
    发明授权
    Fluid loss control 失效
    流失控制

    公开(公告)号:US5948733A

    公开(公告)日:1999-09-07

    申请号:US725837

    申请日:1996-09-18

    摘要: The invention, in one embodiment, relates to a fluid loss control additive or composition comprising a granular starch composition and fine particulate mica, in specified proportions. The invention further comprises a fracturing fluid containing a starch composition and mica, in a specified ratio. In yet a third embodiment, the invention comprises a method of fracturing a subterranean formation penetrated by a borehole, comprising injecting into the borehole and into contact with the formation, at a rate and pressure sufficient to fracture the formation, a fracturing fluid containing starch and mica, in specified ratios, and in an amount sufficient to provide fluid loss control.

    摘要翻译: 在一个实施方案中,本发明涉及以特定比例包含颗粒状淀粉组合物和微粒云母的流体损失控制添加剂或组合物。 本发明还包括含有淀粉组合物和云母的压裂液,以特定的比例。 在第三个实施例中,本发明包括一种压裂由钻孔穿透的地层的方法,包括以足以破裂地层的速率和压力将井眼注入井眼并与地层接触;含有淀粉的压裂液; 云母,以规定的比例,以足以提供流体损失控制的量。

    Delayed borate crosslinked fracturing fluid having increased temperature
range
    10.
    发明授权
    Delayed borate crosslinked fracturing fluid having increased temperature range 失效
    延迟的硼酸盐交联压裂液具有升高的温度范围

    公开(公告)号:US5658861A

    公开(公告)日:1997-08-19

    申请号:US439054

    申请日:1995-05-11

    IPC分类号: C09K8/68 E21B43/26

    CPC分类号: C09K8/685

    摘要: The crosslinking of galactomannan gum fracturing fluids by borate ion is delayed for high-temperature applications by encapsulating the boron with a polymer coating. The crosslink-delay time is further adjusted by varying the concentration of an organic polyol. The polyol also acts as a stabilizer for the crosslinked fluid at elevated temperatures. Low pumping friction pressures are achieved by the delay in the crosslinking with the boron available at high temperatures to add high-temperature stability to the fracturing fluid at temperatures ranging up to about 350.degree. F.

    摘要翻译: 通过用聚合物涂层包覆硼,通过硼酸根离子交联半乳甘露聚糖胶体压裂液被延迟用于高温应用。 通过改变有机多元醇的浓度进一步调节交联延迟时间。 多元醇还用作交联流体在升高的温度下的稳定剂。 通过在高温下可用的硼的交联延迟来实现低泵送摩擦压力,以在高达约350°F的温度下向压裂液添加高温稳定性。