[1]刘凯都,刘书杰,文 敏.物理化学作用下定向井井壁稳定分析[J].复杂油气藏,2019,12(03):64-67.[doi:10.16181/j.cnki.fzyqc.2019.03.013]
　LIU Kaidu,LIU Shujie,WEN Min.Stability analysis of directional wellbore wall under physicochemical action[J].Complex Hydrocarbon Reservoirs,2019,12(03):64-67.[doi:10.16181/j.cnki.fzyqc.2019.03.013]
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物理化学作用下定向井井壁稳定分析()
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《复杂油气藏》[ISSN:1674-4667/CN:31-2019/TQ]

卷:
12卷
期数:
2019年03期
页码:
64-67
栏目:
油气工程
出版日期:
2019-09-25

文章信息/Info

Title:
Stability analysis of directional wellbore wall under physicochemical action
作者:
刘凯都; 刘书杰; 文 敏
中海油研究总院有限责任公司,北京 100028
Author(s):
LIU Kaidu;  LIU Shujie;  WEN Min
CNOOC Research Institute Ltd.,Beijing 10028,China)
关键词:
泥页岩 耦合 岩石应力 坍塌压力 地应力 钻井液
Keywords:
shale;  coupling;  rock stress;  collapse pressure;  in-situ stress;  drilling fluid
分类号:
TE26
DOI:
10.16181/j.cnki.fzyqc.2019.03.013
文献标志码:
A
摘要:
钻井过程中,由于钻井液物理化学作用的影响,泥页岩井壁更加不稳定。针对泥页岩孔隙内多场耦合作用下的渗流问题进行了系统研究,建立力学-化学耦合作用下定向井井壁稳定模型,采用有限差分法求解该模型,得出井壁周围应力分布,计算井壁坍塌压力,并研究与地应力状态有关的定向井坍塌压力。模型深化了对泥页岩孔隙内多场耦合作用下渗流规律的认识,模型简单实用,具有一定的工程实用价值。
Abstract:
In the process of drilling, borehole wall of shale becomes more instable due to the physicochemical action of drilling fluid. So it was systematically studied on the seepage flow problem under the coupling action of multi-field in shale pores. It was built a mechanical-chemical coupling model for stability of directional wellbore wall. By adopting the finite difference approach, the model was solved. And then the stress distribution around the wellbore wall was obtained and the collapse pressure was calculated. It also was studied the collapse pressure of directional well related to in-situ stress state. The simple and practical model is helpful to deepen understanding of infiltrating fluid regularity under the multi-field coupling action.

参考文献/References:

[1] EWY R T, STANKOVICH R J. Pore pressure change due to shale-fluid interactions: Measurements under simulated wellbore conditions[J]. North American Rock Mechanics Symposium, 2000.
[2] CHENVERT, M E,PERNOT V. Control of shale swelling pressures using inhibitive water-base muds[J], SPE 49263, 1998.
[3] CHEN G, CHENVERT M E, SHARMA M M, et al. A study of wellbore stability in shales including poroelastic, chemical, and thermal effects[J]. Journal of Petroleum Science & Engineering, 2003, 38(3):167-176.
[4] LOMBA R F T, CHENVERT M E, SHARMA M M. The ion-selective membrane behavior of native shales[J]. Journal of Petroleum Science & Engineering, 2000, 25(1):9-23.
[5] LOMBA R F T, CHENVERT M E, SHARMA M M. The role of osmotic effects in fluid flow through shales[J]. Journal of Petroleum Science & Engineering, 2000, 25(1):25-35.

备注/Memo

备注/Memo:
收稿日期:2018-08-13; 改回日期:2019-01-28。
第一作者简介:刘凯都(1988—),工程师,从事钻井工作。E-mail:liukd@cnooc.com.cn。
更新日期/Last Update: 2024-01-18