Method of treating an oil or gas well with biodegradable low toxicity fluid system
    1.
    发明申请
    Method of treating an oil or gas well with biodegradable low toxicity fluid system 有权
    用可生物降解的低毒液体系统处理油井或气井的方法

    公开(公告)号:US20060096757A1

    公开(公告)日:2006-05-11

    申请号:US10985458

    申请日:2004-11-10

    IPC分类号: E21B33/16 E21B37/00 E21B43/25

    摘要: A method of treating a well consists of introducing into the wellbore a biodegradable fluid system containing a blend of lactic acid ester, such as ethyl lactate, and a fatty acid ester, such as methyl soyate. The fluid system may be further in the form of a microemulsion that is formed by combining a blend with one or more emulsifiers, an alcohol, and water. The fluid system may be used in displacement, well remediation and stimulation as well as additional, alternative applications such as the cleaning of surface and/or downhole equipment.

    摘要翻译: 处理井的方法包括将包含乳酸酯(例如乳酸乙酯)和脂肪酸酯如大豆酸甲酯的共混物的可生物降解的流体体系引入井眼。 流体系统还可以是通过将共混物与一种或多种乳化剂,醇和水组合而形成的微乳液形式。 流体系统可以用于位移,良好的补救和刺激以及额外的替代应用,例如清洁表面和/或井下设备。

    Method of treating an oil or gas well with biodegradable low toxicity fluid system
    2.
    发明申请
    Method of treating an oil or gas well with biodegradable low toxicity fluid system 失效
    用可生物降解的低毒液体系统处理油井或气井的方法

    公开(公告)号:US20060096758A1

    公开(公告)日:2006-05-11

    申请号:US11263848

    申请日:2005-11-02

    IPC分类号: E21B33/16 E21B37/00

    摘要: A method of treating a well consists of introducing into the wellbore a biodegradable fluid system containing a fatty acid ester, such as methyl soyate. The fluid system may further contain a lactic acid ester, such as ethyl lactate, and/or a nonionic surfactant. The fluid system may be used in displacement, well remediation and stimulation as well as additional, alternative applications such as the cleaning of surface and/or downhole equipment.

    摘要翻译: 处理井的方法包括将含有脂肪酸酯如大豆油甲酯的生物可降解的流体体系引入井眼。 流体系统还可以含有乳酸酯,例如乳酸乙酯和/或非离子表面活性剂。 流体系统可以用于位移,良好的补救和刺激以及额外的替代应用,例如清洁表面和/或井下设备。

    Method of reclaiming brine solutions using an organic chelant
    3.
    发明申请
    Method of reclaiming brine solutions using an organic chelant 审中-公开
    使用有机螯合剂回收盐水溶液的方法

    公开(公告)号:US20070095762A1

    公开(公告)日:2007-05-03

    申请号:US11589706

    申请日:2006-10-30

    IPC分类号: C02F1/52

    摘要: A method of reclaiming a well completion brine solution by using an organic chelant that is capable of discriminating between (i) iron and non-zinc heavy metals; and (ii) calcium and zinc. The chelant contains a functional group selected from the group —CO2H or —PO(OH)R20 or a salt or ester thereof, —C(O)—, —OE, —SE, —N═C(R2)R3, EO—N═C(R2)R3, —N(R2)R3, and —N(C(O)R1)R2 group optionally substituted with a —COOH or —PO(OH)R20 or a salt or ester thereof, —SE or —OE group, wherein R2 and R3 are independently selected from E or forms, with nitrogen, phosphorous, oxygen or sulfur, a heterocyclic ring; E is R1 or —H; R1 is a C1-C30 alkyl or aralkyl group or a derivative thereof and R20 is —OH or R1.

    摘要翻译: 通过使用能够区分(i)铁和非锌重金属的有机螯合剂回收完井盐水溶液的方法; 和(ii)钙和锌。 螯合剂含有选自-CO 2 H或-PO(OH)R 20的官能团或其盐或酯,-C(O) - , -OE,-SE,-NC(R 2)R 3,EO-NC(R 2)R 3, -N(R 2)R 3,和-N(C(O)R 1)R 2, 任选被-COOH或-PO(OH)R 20或其盐或酯取代的-SE或-OE基团,其中R 2和R 3, 独立地选自E或其形式,具有氮,磷,氧或硫,杂环; E是R 1或-H; R 1是C 1 -C 30烷基或芳烷基或其衍生物,R 20是 - OH或R 1。

    Compositions for treating a well penetrating a subterranean formation and uses thereof
    4.
    发明申请
    Compositions for treating a well penetrating a subterranean formation and uses thereof 有权
    用于处理穿透地层的井的组合物及其用途

    公开(公告)号:US20070265171A1

    公开(公告)日:2007-11-15

    申请号:US11820085

    申请日:2007-06-18

    IPC分类号: C09K8/52

    摘要: Fluid producing or injecting wells may be treated with a water-in-oil emulsion for the removal or inhibition of unwanted particulates, including pipe dope, asphaltenes and paraffins. In addition, such emulsions are effective in the displacement of oil base drilling muds and/or residues from such muds from wells. The emulsion may also be used to break the interfacial and/or rheological properties of oil base mud and synthetic oil base mud filter cakes, and act as a demulsifier to break the water-in-oil emulsion present in such oil base and synthetic oil base muds. The water-in-oil emulsions may optionally contain a dispersing agent as well as a surfactant.

    摘要翻译: 流体生产或注入井可用油包水乳液处理,以除去或抑制不需要的颗粒,包括管道涂料,沥青质和石蜡。 此外,这种乳液在油井钻井泥浆和/或来自井的这种泥浆的残留物的位移中是有效的。 该乳液也可用于破坏油基泥浆和合成油基泥浆滤饼的界面和/或流变性能,并且用作破乳剂以破坏这种油基和合成油基中存在的油包水乳液 泥土 油包水乳液可以任选地含有分散剂以及表面活性剂。

    Method of treating oil or gas well with biodegradable emulsion
    5.
    发明申请
    Method of treating oil or gas well with biodegradable emulsion 有权
    用生物可降解乳液处理油或气井的方法

    公开(公告)号:US20070225174A1

    公开(公告)日:2007-09-27

    申请号:US11388103

    申请日:2006-03-23

    IPC分类号: C09K8/00 E21B43/00

    摘要: A biodegradable water-in-synthetic oil base emulsion, effective in the removal of filter cakes, consists of an external phase of a surfactant emulsified in a paraffinic base oil. The emulsion is particularly effective in breaking-down the interfacial rheological properties of oil base mud and synthetic oil base mud filter cakes and acts as a demulsifier to break the water-in-oil emulsions present in such oil base and synthetic oil base muds.

    摘要翻译: 有效去除滤饼的可生物降解的合成水基乳液由在石蜡基油中乳化的表面活性剂的外相组成。 该乳液特别有效地分解油基泥浆和合成油基泥浆滤饼的界面流变性能,并且用作破乳剂以破坏这种油基和合成油基泥中存在的油包水乳液。

    Method of reclaiming brine solutions using an organic chelant
    6.
    发明申请
    Method of reclaiming brine solutions using an organic chelant 有权
    使用有机螯合剂回收盐水溶液的方法

    公开(公告)号:US20050014654A1

    公开(公告)日:2005-01-20

    申请号:US10623044

    申请日:2003-07-18

    IPC分类号: E21B21/06 E21B43/00

    摘要: A method of reclaiming a well completion brine solution by using an organic chelant that is capable of discriminating between (i) iron and non-zinc heavy metals; and (ii) calcium and zinc. The chelant contains a functional group selected from the group —CO2H or —PO(OH)R20 or a salt or ester thereof, —C(O)—, —OE, —SE, —N═C(R2)R3, EO—N═C(R2)R3, —N(R2)R3, and —N(C(O)R1)R2 group optionally substituted with a —COOH or —PO(OH)R20 or a salt or ester thereof, —SE or —OE group, wherein R2 and R3 are independently selected from E or forms, with nitrogen, phosphorous, oxygen or sulfur, a heterocyclic ring; E is R1 or —H; R1 is a C1-C30 alkyl or aralkyl group or a derivative thereof and R20 is —OH or R1.

    摘要翻译: 通过使用能够区分(i)铁和非锌重金属的有机螯合剂回收完井盐水溶液的方法; 和(ii)钙和锌。 螯合剂含有选自-CO 2 H或-PO(OH)R 20的官能团或其盐或酯,-C(O) - , - OE,-SE,-N = C(R 2) )R 3,EO-N = C(R 2)R 3,-N(R 2)R 3和-N(C(O)R 1)R 任选被-COOH或-PO(OH)R 20或其盐或酯取代的基团,-SE或-OE基团,其中R 2和R 3独立地选自E或形式,与 氮,磷,氧或硫,杂环; E是R 1或-H; R 1是C 1 -C 30烷基或芳烷基或其衍生物,R 20是-OH或R 1。