Treatment fluids and methods using zeolite and a delayed release acid for treating a subterranean formation
    1.
    发明申请
    Treatment fluids and methods using zeolite and a delayed release acid for treating a subterranean formation 审中-公开
    使用沸石和延迟释放酸处理地层的处理流体和方法

    公开(公告)号:US20070123433A1

    公开(公告)日:2007-05-31

    申请号:US11290083

    申请日:2005-11-30

    IPC分类号: C09K8/00 E21B43/00

    摘要: The invention provides a treatment fluid for treating a subterranean formation penetrated by a wellbore, the treatment fluid comprising: (i) an aqueous carrier fluid; (ii) a zeolite; (iii) a polymeric gelling material; and (iv) a delayed release acid. The invention also provides a method for treating a subterranean formation penetrated by a wellbore, the method comprising the steps of pumping a treatment fluid comprising: (i) an aqueous carrier fluid; (ii) a zeolite; (iii) a polymeric gelling material; and (iv) a delayed release acid; and introducing the treatment fluid into the wellbore.

    摘要翻译: 本发明提供了一种用于处理由井眼渗透的地层的处理流体,所述处理流体包括:(i)含水载体流体; (ii)沸石; (iii)聚合胶凝材料; 和(iv)延迟释放酸。 本发明还提供了一种用于处理由井眼渗透的地层的方法,所述方法包括以下步骤:泵送处理流体,所述处理流体包括:(i)水性载体流体; (ii)沸石; (iii)聚合胶凝材料; 和(iv)延迟释放酸; 并将处理流体引入井眼。

    Methods of drilling using flat rheology drilling fluids
    4.
    发明授权
    Methods of drilling using flat rheology drilling fluids 有权
    使用平流变钻井液钻井的方法

    公开(公告)号:US07456135B2

    公开(公告)日:2008-11-25

    申请号:US10292124

    申请日:2002-11-12

    IPC分类号: C09K8/32 B01F17/00 B01F3/08

    CPC分类号: C09K8/34 C09K8/32 C09K8/36

    摘要: Methods for drilling, running casing in, and/or cementing a borehole in a subterranean formation without significant loss of drilling fluid are disclosed, as well as compositions for use in such methods. The methods employ drilling fluids comprising fragile gels or having fragile gel behavior and providing superior oil mud rheology and overall performance. The fluids are especially advantageous for use in offshore wells because the fluids exhibit minimal differences between downhole equivalent circulating densities and surface densities notwithstanding differences in drilling or penetration rates. When an ester and isomerized olefin blend is used for the base of the fluids, the fluids make environmentally acceptable and regulatory compliant invert emulsion drilling fluids.

    摘要翻译: 公开了用于在地下地层中钻孔,运行壳体和/或固井井眼而不显着损失钻井液的方法,以及用于这些方法的组合物。 该方法采用包含易碎凝胶或具有脆性凝胶行为的钻井液,并提供优异的油泥流变性和整体性能。 流体在海上井中特别有利,因为即使钻井或渗透速度不同,流体表现出井下等效循环密度和表面密度之间的最小差异。 当酯和异构化的烯烃共混物用于流体的基底时,流体使得环境可接受和调节顺应性反转乳液钻井液。

    Methods and compositions of controlling the rheology of a diutan-containing well treatment fluid at high temperatures
    5.
    发明申请
    Methods and compositions of controlling the rheology of a diutan-containing well treatment fluid at high temperatures 有权
    在高温下控制含狄氏剂处理液的流变性的方法和组成

    公开(公告)号:US20060205606A1

    公开(公告)日:2006-09-14

    申请号:US11077881

    申请日:2005-03-11

    IPC分类号: C09K8/00 E21B43/00

    摘要: The invention provides a method for treating a subterranean formation penetrated by a wellbore, the method comprising the steps of formulating a treatment fluid and introducing the treatment fluid through the wellbore. The treatment fluid comprises water; diutan; and a sufficient amount of salt to increase the density of the treatment fluid to at least 8.5 lb/gal, wherein at least 50% by weight of the salt is selected from the group consisting of: bromide salts, non-bromide salts having a higher salting-in effect than bromide according to the Hofmeister series as measured by the salt's effect on the cloud point of poly(ethylene oxide) that has a molecular weight of 4×106, and any combination in any proportion thereof. The invention also provides a treatment fluid for use in a subterranean formation penetrated by a wellbore, the treatment fluid comprising: water; diutan; and a sufficient amount of salt to increase the density of the treatment fluid to at least 8.5 lb/gal, wherein at least 50% by weight of the salt is selected from the group consisting of: bromide salts, non-bromide salts having a higher salting-in effect than bromide according to the Hofmeister series as measured by the salt's effect on the cloud point of poly(ethylene oxide) that has a molecular weight of 4.106, and any combination in any proportion thereof.

    摘要翻译: 本发明提供了一种处理井眼穿透的地层的方法,所述方法包括配制处理流体并通过井筒引入处理流体的步骤。 处理液包含水; di an 和足够量的盐以将处理流体的密度增加至至少8.5lb / gal,其中至少50重量%的盐选自:溴化物盐,具有较高浓度的溴化物盐,非溴化物盐 通过盐对分子量为4×10 6的聚(环氧乙烷)的浊点的影响测定的根据Hofmeister系列的盐析效果,以及任何组合 。 本发明还提供一种用于在井眼穿透的地层中的处理流体,所述处理流体包括:水; di an 和足够量的盐以将处理流体的密度增加至至少8.5lb / gal,其中至少50重量%的盐选自:溴化物盐,具有较高浓度的溴化物盐,非溴化物盐 通过盐对分子量为4.10〜6的聚(环氧乙烷)的浊点的影响测定的根据Hofmeister系列的溴化物的盐析效果以及任何比例的组合 。

    Hard surface cleaners containing chitosan
    6.
    发明授权
    Hard surface cleaners containing chitosan 失效
    含有壳聚糖的硬表面清洁剂

    公开(公告)号:US06849586B2

    公开(公告)日:2005-02-01

    申请号:US10035499

    申请日:2001-10-26

    CPC分类号: C11D11/0023 C11D3/3769

    摘要: Disclosed herein are acidic aqueous hard surface cleaners and methods for using them. The cleaners include a surfactant and a poly D-glucosamine such as chitosan. They provides residual benefits on the hard surface such as soil resistance and resistance to bacteria, molds and biofilms.

    摘要翻译: 本文公开了酸性水性硬表面清洁剂和使用它们的方法。 清洁剂包括表面活性剂和聚D-葡糖胺如壳聚糖。 它们在硬表面提供了残留的益处,如土壤抗性和抗细菌,霉菌和生物膜。

    ALKALINE PERSULFATE FOR LOW-TEMPERATURE BREAKING OF MULTI-CHAIN POLYMER VISCOSIFIED FLUID
    7.
    发明申请
    ALKALINE PERSULFATE FOR LOW-TEMPERATURE BREAKING OF MULTI-CHAIN POLYMER VISCOSIFIED FLUID 有权
    用于多链多聚体粘度流体低温断裂的碱性聚合物

    公开(公告)号:US20130133890A2

    公开(公告)日:2013-05-30

    申请号:US13166442

    申请日:2011-06-22

    IPC分类号: E21B43/16

    摘要: A persulfate compound activated by a strong base is used for low-temperature breaking of fluids viscosified with a multi-chain polysaccharide. The breaker system can be used in an oilfield or pipeline application where a multi-chain polysaccharide may be used in a fluid. It is particularly useful at low temperatures of less than 100° F. Optionally, the water can be a brine.

    摘要翻译: 用强碱活化的过硫酸盐化合物用于低温多破碎的多链多糖粘稠液体的低温断裂。 断路器系统可用于油田或管道应用中,其中多链多糖可用于流体。 它在低于100°F的低温下特别有用。任选地,水可以是盐水。

    Flat rheology drilling fluids
    8.
    发明授权
    Flat rheology drilling fluids 有权
    平流变钻井液

    公开(公告)号:US07462580B2

    公开(公告)日:2008-12-09

    申请号:US11633822

    申请日:2006-12-05

    IPC分类号: C09K8/08 B01F3/08 E21B21/00

    CPC分类号: C09K8/34 C09K8/32 C09K8/36

    摘要: Methods for drilling, running casing in, and/or cementing a borehole in a subterranean formation without significant loss of drilling fluid are disclosed, as well as compositions for use in such methods. The methods employ drilling fluids comprising fragile gels or having fragile gel behavior and providing superior oil mud rheology and overall performance. The fluids are especially advantageous for use in offshore wells because the fluids exhibit minimal differences between downhole equivalent circulating densities and surface densities notwithstanding differences in drilling or penetration rates. When an ester and isomerized olefin blend is used for the base of the fluids, the fluids make environmentally acceptable and regulatory compliant invert emulsion drilling fluids.

    摘要翻译: 公开了用于在地下地层中钻孔,运行壳体和/或固井井眼而不显着损失钻井液的方法,以及用于这些方法的组合物。 该方法采用包含易碎凝胶或具有脆性凝胶行为的钻井液,并提供优异的油泥流变性和整体性能。 流体在海上井中特别有利,因为即使钻井或渗透速度不同,流体表现出井下等效循环密度和表面密度之间的最小差异。 当酯和异构化的烯烃共混物用于流体的基底时,流体使得环境可接受和调节顺应性反转乳液钻井液。

    Surfactant Wash Treatment Fluids and Associated Methods
    9.
    发明申请
    Surfactant Wash Treatment Fluids and Associated Methods 有权
    表面活性剂洗涤液和相关方法

    公开(公告)号:US20080169102A1

    公开(公告)日:2008-07-17

    申请号:US11622898

    申请日:2007-01-12

    IPC分类号: E21B43/27

    CPC分类号: C09K8/52

    摘要: Of the many methods and compositions provided herein, in one embodiment, the invention provides a method comprising: providing an oil-wet well bore surface; providing a surfactant wash treatment fluid that comprises an acid-compatible surfactant, an acid and/or an acid-generating component, and an aqueous fluid; contacting the oil-wet well bore surface with the surfactant wash treatment fluid; allowing the oil-wet well bore surface to become water-wet; and producing fluids from the formation. In another embodiment, the invention provides a surfactant wash treatment fluid for use in a subterranean formation comprising an aqueous fluid, an acid-compatible surfactant, an acid and/or an acid-generating component.

    摘要翻译: 在本文提供的许多方法和组合物中,在一个实施方案中,本发明提供了一种方法,包括:提供油 - 湿井孔表面; 提供包含酸相容表面活性剂,酸和/或酸产生组分和水性流体的表面活性剂洗涤处理流体; 使油 - 湿井眼表面与表面活性剂洗涤处理液接触; 允许油 - 湿井孔表面变湿水; 并从地层产生流体。 在另一个实施方案中,本发明提供了用于地下地层中的表面活性剂洗涤处理流体,其包含含水流体,酸相容表面活性剂,酸和/或酸产生组分。