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| 超高温抗盐聚合物降滤失剂的研制及应用 |
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黄维安1,邱正松1,徐加放1,薛玉志2,李公让1,2,江琳1
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(1.中国石油大学 石油工程学院,山东 青岛 266555;2.胜利石油管理局 钻井工艺研究院,山东 东营 257017)
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| 摘要: |
| 针对当前国内外超高温水基钻井液高温稳定性及滤失性调控技术难题,研制出超高温抗盐聚合物降滤失剂HTP1,对其作用机制进行分析,并在胜科1超深井和泌深1超深井进行应用试验。HTP1的作用机制主要有两方面,一是在黏土颗粒上的吸附量大并且吸附牢固,在化学环境和温度改变情况下吸附量变化小,二是改善钻井液体系中的颗粒粒径级配、降低滤饼的渗透率和改善其可压缩性;HTP1抗温达240 ℃,抗盐超过20％,在各种基浆中的降滤失效果优于国内外同类处理剂,可以满足超深井超高温钻井需要。 |
| 关键词: 钻井液 超高温 深井 降滤失剂 作用机制 |
| DOI：10.3969/j.issn.1673-5005.2011.01.031 |
| 分类号::TE 254 |
| 文献标识码:A |
| 基金项目:国家高技术研究发展计划项目(2006AA06A19-5) |
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| Development and application of ultrahigh temperature antisalt polymer fluid loss reducer |
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HUANG Weian1, QIU Zhengsong1, XU Jiafang1, XUE Yuzhi2, LI Gongrang1,2, JIANG Lin1
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(1.College of Petroleum Engineering in China University of Petroleum, Qingdao 266555, China;2.Research Institute of Drilling Technology of Shengli Petroleum Administrative Bureau, Dongying 257017, China)
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| Abstract: |
| Aimed at the present outstanding problem of filtration property adjusting and controlling and high temperature stability of ultrahigh temperature water base drilling fluid around the world, the ultrahigh temperature antisalts polymer fluid loss reducer HTP1 was developed. The action mechanisms of HTP1 are as follows:(1) HTP1 are largely and hardly adsorbed on clay particles and little changed by salt and temperature.(2) HTP1 can improve particle size grading, reduce the permeability and improve compressibility observably of filter cake. Field application results of the polymer fluid loss reducer HTP1 in ultradeep well Shengke 1 and Bishen 1 show that the tolerance of HTP1 to temperature is up to 240 ℃, to salt above 20％. The performances of HTP1 in several base slurries have an advantage of treating agents around the world, and HTP1 could meet the demand of ultradeep well drilling under ultrahigh temperature. |
| Key words: drilling fluid ultrahigh temperature deep well fluid loss reducer action mechanism |
