Drilling fluids and method of drilling
    1.
    发明授权
    Drilling fluids and method of drilling 失效
    钻井液和钻井方法

    公开(公告)号:US07122507B2

    公开(公告)日:2006-10-17

    申请号:US10293614

    申请日:2002-11-14

    IPC分类号: C09K7/06

    CPC分类号: C09K8/36 C09K8/34

    摘要: Drilling, completing or workover of a well, particularly an oil and/or gas well, is carried out using a fluid which includes a continuous phase including an ester of the formula (I): (R2)p-Ph-(CH2)m—COO-(AO)n-R1 where R1, AO, n, m, Ph, R2 and p have defined meanings and particularly where the esters are alkyl or alkenyl benzoate esters. These esters are beneficial by having a range of viscosities, especially extending to low viscosities, and attractive toxicological and environmental profiles for use in drilling, completion and/or workover of wells.

    摘要翻译: 使用包括包含式(I)的酯的连续相的流体进行钻井,完井或修井,特别是油和/或气井:(R 2) p - (CH 2) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 其中R 1,AO,n,m,Ph,R 2和p具有定义的含义,特别是当酯是烷基或链烯基苯甲酸酯时。 这些酯通过具有一定范围的粘度,特别是延伸到低粘度,以及用于钻井,完井和/或修井的有吸引力的毒理学和环境特性是有益的。

    Method of oil/gas well stimulation
    3.
    发明授权
    Method of oil/gas well stimulation 失效
    油气井刺激方法

    公开(公告)号:US06849582B2

    公开(公告)日:2005-02-01

    申请号:US10293616

    申请日:2002-11-14

    摘要: Stimulation, particularly fracturing or acidising, of hydrocarbon wells having bores leading to hydrocarbon bearing uses a fluid including a continuous phase of or including a compound of the formula (1): (R2)p—Ph—(CH2)m—COO—(AO)n—R1 where R1, AO, n, m, Ph, R2 and p having defined meanings and particularly where the esters are alkyl or alkenyl benzoate esters. These esters are beneficial by having a range of viscosities, especially extending to low viscosities, and attractive toxicological and environmental profiles for use in well stimulation.

    摘要翻译: 具有导致烃承载的孔的烃井的刺激,特别是压裂或酸化使用包括式(1)化合物的连续相或包含式(1)的化合物的流体:(R 2)p-Ph-(CH 2)m - COO-(AO)nR 1其中R 1,AO,n,m,Ph,R 2和p具有确定的含义,特别是其中酯是烷基或链烯基苯甲酸酯。 这些酯通过具有一定范围的粘度,特别是延伸到低粘度以及用于井刺激的有吸引力的毒理学和环境特征是有益的。

    Oil recovery process
    4.
    发明授权
    Oil recovery process 失效
    采油过程

    公开(公告)号:US4199027A

    公开(公告)日:1980-04-22

    申请号:US877738

    申请日:1978-02-14

    IPC分类号: C09K8/584 E21B43/22

    CPC分类号: C09K8/584 Y10S507/936

    摘要: A thickener and surfactant for a driving fluid used in enhanced oil recovery comprises a salt of a sulphated polyoxyethylene alcohol in which at least 40 wt % of the alcohol portion of the sulphated polyoxyethylene alcohol is a C.sub.8 to C.sub.20 primary alcohol having a C.sub.1 to C.sub.3 alkyl substituent in the 2-position of an otherwise linear chain. The balance of the alcohol portion may be made up of a linear primary alcohol of same carbon number as the 2-alkyl branched alcohol.

    摘要翻译: 用于提高采油量的驱动流体的增稠剂和表面活性剂包括硫酸化聚氧乙烯醇的盐,其中至少40重量%的硫酸化聚氧乙烯醇的醇部分是具有C 1至C 3烷基的C 8至C 20伯醇 取代基在另一条线性链的2-位。 醇部分的平衡可以由与2-烷基支链醇相同碳数的直链伯醇组成。