聚胺微泡沫钻井液及其作用机理

牛步青; 黄维安; 王洪伟; 徐加放; 贾江鸿; 邱正松; 张世锋

doi:10.3969/j.issn.1001-5620.2015.06.008

聚胺微泡沫钻井液及其作用机理

doi: 10.3969/j.issn.1001-5620.2015.06.008

1.
中国石油大学(华东)石油工程学院, 山东青岛
2. 中国石化胜利油田分公司物资供应处, 山东东营
3. 中海油田服务股份有限公司油田化学事业部, 天津
4. 中石化胜利石油工程有限公司钻井工艺研究院, 山东东营

基金项目: 国家自然科学基金项目(51374233);山东省自然科学基金项目(ZR2013EEM032);中央高校基本科研业务费专项资金资助(13CX02044A)。

详细信息

作者简介:
牛步青,男,1981年生,主要从事钻井液技术研究工作。地址:青岛经济技术开发区长江西路66号中国石油大学(华东)石油工程学院;邮政编码266580;电话(0532)86981190;E-mail:masterhuang1997@163.com。

中图分类号: TE254.3
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出版历程
- 收稿日期: 2015-07-07
- 刊出日期: 2015-11-30

Polyamine Micro Foam Drilling Fluid

College of Petroleinn Engineering, China University of Petroleum, Qingdao, Shandong 266580, China

摘要

摘要: 针对孔隙或裂缝性低压地层井漏、井塌及油气层损害等多种技术难题,以聚胺为水化抑制剂,结合微泡沫钻井液特点,构建了聚胺微泡沫钻井液体系。通过调整搅拌速度、优选加重剂、增黏剂加量及pH值等手段,使聚胺微泡沫钻井液密度在0.43~1.15 g/cm³之间可调。研制的聚胺微泡沫钻井液体系的抗温达120℃,可抗12%氯化钠、20%海水、12%劣质土、21%柴油污染,具有较好的防漏堵漏性能及储层保护效果。聚胺微泡沫钻井液兼有聚胺的表面水化、渗透水化抑制作用,加之较低的表面张力、活度,具有屏蔽暂堵性,在井壁上形成半透膜,可起到良好的防止井壁坍塌和保护油气层作用。
- 微泡沫钻井液 /
- 聚胺 /
- 井壁稳定 /
- 防漏堵漏 /
- 密度调节 /
- 防止地层损害
Abstract: A polyamine micro foam drilling fluid was formulated for use in drilling porous or fractured low pressure formations where mud losses had frequently occurred, and in combating well collapse and reservoir damage.The density of the polyamine micro foam mud can be controlled within 0.43 g/cm³-1.15 g/cm³ by adjusting mixing speed, optimizing the use of weighting additives and viscosifiers, and adjusting pH of the mud.The micro foam mud can be used in these conditions such as high temperature(120℃), 12% NaCl, 12% clay of poor quality, or 21% diesel oil contamination.Polyamine used in the mud can inhibit surface hydration and osmotic hydration, and the ability of polyamine to reduce surface tension and to form semi-permeable membrane on the surface of borehole wall makes it superior in borehole instability control and reservoir protection.
- Micro foam drilling fluid /
- Polyamine /
- Borehole stabilization /
- Prevent and control lost circulation /
- Density adjustment /
- Reservoir protection

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参考文献(13)

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