Well treating composition containing relatively lightweight proppant and acid
    1.
    发明申请
    Well treating composition containing relatively lightweight proppant and acid 审中-公开
    含有相对轻质的支撑剂和酸的处理良好的组合物

    公开(公告)号:US20060073980A1

    公开(公告)日:2006-04-06

    申请号:US10954801

    申请日:2004-09-30

    IPC分类号: C09K8/02 C09K8/68 E21B43/00

    摘要: A well treating composition contains an aqueous acid and at least one relatively lightweight proppant, preferably having an apparent specific gravity (ASG) less than or equal to 2.45. The acid fracturing composition may used to acid fracture a hydrocarbon reservoir within a subterranean formation of an oil or gas well. The composition may further be used to stimulate the production of hydrocarbons. The proportion of relatively lightweight proppant to acid in the composition is such that the dimensional fracture conductivity (CfD) is in excess of 1.0. The aqueous acid typically has an ASG substantially equal to the ASG of the relatively lightweight particulate. As such, the relatively lightweight particulate is suspended in the aqueous acid.

    摘要翻译: 处理良好的组合物含有酸水溶液和至少一种相对轻质的支撑剂,优选具有小于或等于2.45的表观比重(ASG)。 酸压裂组合物可以用于将油气井的地层内的烃储层酸化。 该组合物还可用于刺激烃的生产。 组合物中相对轻质的支撑剂与酸的比例使得尺寸断裂导电率(C max)超过1.0。 含水酸通常具有基本上等于相对轻质颗粒的ASG的ASG。 因此,相对轻质的颗粒悬浮在含水酸中。

    Method of reclaiming brine solutions using an organic chelant
    2.
    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。

    Method of reclaiming brine solutions using an organic chelant
    3.
    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。

    Increasing reaction efficiency of acetic acid
    4.
    发明申请
    Increasing reaction efficiency of acetic acid 有权
    提高乙酸的反应效率

    公开(公告)号:US20050194147A1

    公开(公告)日:2005-09-08

    申请号:US10871108

    申请日:2004-06-18

    摘要: A method for removing or dissolving calcareous materials in a subterranean formation or in a wellbore consists of two basic steps. In the first step, an aqueous acid solution is injected into the formation or wellbore. The aqueous acid solution contains between from about 15 to about 99 weight percent of an organic acid selected from formic acid, acetic acid or a mixture of formic acid and acetic acid. Water or brine is then injected into the formation or wellbore. The amount of water or brine injected into the formation or wellbore is an amount sufficient to reduce the concentration of organic acid in the formation or wellbore to no greater than 10 weight percent.

    摘要翻译: 在地层或井眼中去除或溶解钙质材料的方法由两个基本步骤组成。 在第一步中,将酸水溶液注入地层或井眼。 酸水溶液含有约15至约99重量%的选自甲酸,乙酸或甲酸和乙酸的混合物的有机酸。 然后将水或盐水注入地层或井眼。 注入地层或井筒的水或盐水的量是足以将地层或井眼中的有机酸浓度降低到不大于10重量%的量。