加重钻井液防重晶石沉降技术

林枫; 由福昌; 王胜翔; 杨培龙

doi:10.3969/j.issn.1001-5620.2015.03.008

加重钻井液防重晶石沉降技术

doi: 10.3969/j.issn.1001-5620.2015.03.008

1.
中国海油伊拉克有限公司, 北京
2. 荆州嘉华科技有限公司, 湖北荆州

详细信息

作者简介:
林枫,1984年生,毕业于大庆石油学院机械设计制造及其自动化专业,主要从事油气田钻井技术工作。地址:北京市东城区朝阳门内大街2号凯恒大厦B座18楼;邮政编码100010;电话13820547466;E-mail:linfeng@cnoociraq.com。

通讯作者:
由福昌,E-mail:yfc81@163.com。

中图分类号: TE254.3
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出版历程
- 收稿日期: 2015-01-18
- 刊出日期: 2015-05-31

Study on Prevention of Barite Sedimentation in Weighted Drilling Fluids

Level 18 of Block B, Kaiheng Mansion, No. 2 Chaoyangmen Nei Dajie, Dongcheng District, Beijing 100010, China

More Information

Corresponding author: 由福昌,E-mail:yfc81@163.com。

摘要

摘要: 重晶石沉降往往发生在钻井过程中,而在静置过程中由于钻井液凝胶强度的存在,沉降稳定性较好,而一直以来忽视了动态沉降问题。基于以上问题,提出采用老化罐静态沉降测试法和黏度计动态沉降测试法(改进VST 法)来综合评价重晶石的沉降情况。并将重晶石的粒径与沉降稳定性的测试方法相结合,寻求出一种重晶石防沉降技术。实验结果表明:在常规重晶石中复配一定量的超细重晶石,能够较大程度地改善重晶石沉降的问题,尤其是重晶石的动态沉降问题,动态密度差由单一常规重晶石加重情况下的0.436 g/cm³ 下降为0.011 g/cm³,解决了重晶石沉降问题。
- 加重钻井液 /
- 重晶石 /
- 动态沉降 /
- 超细重晶石
Abstract: Settling of barite has long been a problem in deviated well and extended reach well drilling. A cost effective method for preventing barite settling is developed by combining the methods for barite particle size measurement and sedimentation stability testing. Experiments showed that by adding a certain amount of ultra-fine barite into commonly used drilling fluid barite improved the sedimentation stability, especially the dynamic sedimentation, of the barite, the dynamic density difference decreased from 0.436 g/cm³ for conventional barite only, to 0.011 g/cm³ for the mixed barite, greatly improving the sedimentation stability of barite.
- Drilling fluid /
- Barite /
- Sedimentation /

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参考文献(5)

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