抗240℃超高温水基钻井液室内研究

许洁; 乌效鸣; 朱永宜; 契霍特金V. F.; 许明标; 吴川; 郑文龙

doi:10.3969/j.issn.1001-5620.2015.01.003

抗240℃超高温水基钻井液室内研究

doi: 10.3969/j.issn.1001-5620.2015.01.003

1.
中国地质大学(武汉)工程学院, 武汉
2. 中国地质科学院勘探技术研究所, 河北廊坊
3. 长江大学石油工程学院, 湖北荆州

基金项目: 国际大陆科学钻探(ICDP)项目"松辽盆地深资源与环境深部钻探工程"(12120113017600)。

详细信息

作者简介:
许洁,1983年生,中国地质大学(武汉)在读博士研究生,现主要从事钻井液技术研究工作。地址:湖北省武汉市洪山区鲁磨路388号中国地质大学(武汉)工程学院;邮政编码430074;电话13554168306;E-mail:xujie561@126.com。

中图分类号: TE254.3
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出版历程
- 收稿日期: 2014-12-28
- 刊出日期: 2015-01-30

Laboratory Study on Ultra High Temperature Water Base Mud

College of Engineering, China University of Geosciences(Wuhan), No. 388 Lumo Road, Hongshan District, Wuhan, Hubei 430074, china

摘要

摘要: 针对中国大陆科学钻探松科2井深部高温层段钻井作业需要,通过研制出高温稳定剂MG-H2,引入抗高温抗盐的凹凸棒土,优选抗高温降滤失剂,设计出一套以钠膨润土和凹凸棒土为黏土相的低固相抗240℃超高温的水基钻井液配方。MG-H2是采用反相乳液聚合方式研制出的一种油包水型高温稳定剂,其具有球状高分子柔性搭接、增强悬浮稳定性作用和半刚性微粒黏度特性,能实现对钻井液黏度、润滑、滤失性能的综合控制。优选出的3种降滤失剂及其加量配比为3%Lockseal+1%硅氟降滤失剂+1.5%Soltex。综合性能评价结果表明,该抗高温钻井液经过240℃高温老化后性能稳定,具有良好的流变性能和滤失造壁性能,抑制和润滑性能满足钻井需要,能抗10%膨润土、5%NaCl和1%CaCl₂的污染。为松科2井下阶段抗260℃超高温钻井液的研制奠定了良好基础。
- 超高温水基钻井液 /
- 高温稳定剂 /
- 凹凸棒土 /
- 降滤失剂
Abstract: A high temperature water base drilling fluid was formulated with sodium bentonite and attapulgite, and a high temperature water-in-oil stabilizer, MG-H2 which is synthesized through emulsion polymerization. Laboratory evaluation of the drilling fluid showed that, after aging at 240℃, the drilling fluid still retained satisfactory rheology and filtration properties. It had good inhibitive capacity and was resistant to contamination caused by the introduction of 10% clay, or a combination of 5% NaCl and 1% CaCl₂. It also had good lubricity at high temperature. The formulation of this high temperature drilling fluid lays the foundation for the formulation of an ultra-high temperature drilling fluid, say, 260℃, for the drilling of the Well Songke-2.
- Ultra high temperature /
- Water base drilling fluid /
- Attapulgite /
- High temperature stabilizer

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参考文献(6)

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