一种低黏高切油基钻井液体系

韩秀贞; 王显光; 李胜; 琚留柱; 杨小华; 林永学

doi:10.3969/j.issn.1001-5620.2015.03.005

一种低黏高切油基钻井液体系

doi: 10.3969/j.issn.1001-5620.2015.03.005

1.
中国石化石油工程技术研究院, 北京
2. 中国石化中原石油工程有限公司技术公司, 河南濮阳

基金项目: 中石化科技攻关项目"页岩气藏水平井油基钻井液技术研究"(P11053)。

详细信息

作者简介:
韩秀贞,工程师,1978年生,2007年毕业于中国石油大学(北京)获博士学历,现在从事钻井液研究与应用工作。地址:北京市朝阳区北辰东路8号北辰时代大厦509;邮政编码100101;电话(010)84988598;E-mail:hanxiuzhen78@163.com。

中图分类号: TE254.3
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出版历程
- 收稿日期: 2015-01-09
- 刊出日期: 2015-05-31

A Low Viscosity High Gel Strength Oil Base Drilling Fluid

Room 509 of Beichen Shidai Building, No. 8 Beichen Dong Lu, Chaoyang District, Beijing 100101, China

摘要

摘要: 针对传统油包水钻井液黏度高、切力低、携岩能力差的问题,合成了一种Gemini 主乳化剂,其与辅乳化剂有较好的协同效应,钙皂分散性好,兼具润湿功能,在2.0%~3.5% 的低加量下具有好的乳化能力。研制出了密度在1.0~2.0 g/cm³ 之间、抗温达170℃的低黏、高切油基钻井液。室内研究结果表明,该钻井液密度为1.00~1.70 g/cm³时,塑性黏度小于40 mPa·s,动塑比为0.35~0.50 Pa/mPa·s,具有低黏高切的特点;破乳电压在800 V 以上;抗水达15%,抗钻屑达10%,并且润滑性能好,密度在2.0 g/cm³ 以下时润滑系数小于0.085。在焦页54-1HF 井水平段的应用表明,该钻井液性能稳定,具有突出的低黏高切流变特性,破乳电压高,保证了施工顺利、井壁稳定、井眼通畅。
- 油基钻井液 /
- 钻井液性能 /
- 乳化剂 /
- 抑制性 /
- 流变性 /
- 焦页54-1HF 井
Abstract: A new emulsifier was developed to mitigate the problems of oil base drilling fluid such as high viscosity and low gel strength which are negative to the suspension and carrying of drilled cuttings. An oil base drilling fluid was formulated with this new emulsifier. The properties of this mud were as follows: density 1.0-1.7 g/cm³, plastic viscosity≤40 mPa·s, ratio of yield point to plastic viscosity 0.35-0.50 Pa/mPa·s, and electric stability≥800 V. This mud had good rheology and was tolerant to contamination by water to 15%, and drilled cuttings to 10%. This mud had been successfully used in Well Jiaoye54-1HF.
- Oil base drilling fluid /
- Performance of drilling fluid /
- Emulsifier /
- Rheology /
- Well Jiaoye54-1HF /

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参考文献(12)

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