页岩地层油基高滤失承压堵漏技术

doi:10.3969/j.issn.1006-6535.2025.04.017

特种油气藏 ›› 2025, Vol. 32 ›› Issue (4): 143-148.DOI: 10.3969/j.issn.1006-6535.2025.04.017

页岩地层油基高滤失承压堵漏技术

张婧¹, 衡德¹, 徐兴海¹, 李博², 文乾彬², 黄旭东³, 温杰³

1.四川长宁天然气开发有限责任公司,四川成都 610000;
2.洲际海峡能源科技有限公司,四川成都 610000;
3.成都汉元君业油田技术有限公司,四川成都 610000

收稿日期:2024-08-18 修回日期:2025-05-18 出版日期:2025-08-25 发布日期:2025-09-03
通讯作者: 李博(1992—),男,工程师,2014年毕业于西南石油大学应用化学专业,现从事钻井工程管理工作。
作者简介:张婧(1985—),女,工程师,2006年毕业于西南石油大学石油工程专业,2010年毕业于该校油气田开发工程专业,获硕士学位,现从事页岩气勘探开发工作。
基金资助:
四川长宁天然气开发有限公司科研项目“长宁页岩气窄密度窗口承压堵漏技术研究与应用”(20220621-03)

Oil-based high filtration loss pressure-bearing plugging technology for shale formations

ZHANG Jing¹, HENG De¹, XU Xinghai¹, LI Bo², WEN Qianbin², HUANG Xudong³, WEN Jie³

1. Sichuan Changning Natural Gas Development Co., Ltd, Chengdu, Sichuan 610000, China;
2. Intercontinental Strait Energy Technology Co., Ltd, Chengdu, Sichuan 610000, China;
3. Chengdu Hanyuan Junye Oilfield Technology Co., Ltd., Chengdu, Sichuan 610000, China

Received:2024-08-18 Revised:2025-05-18 Online:2025-08-25 Published:2025-09-03

摘要/Abstract

摘要： 针对页岩地层油基钻井液漏失频繁且严重、常规堵漏技术效果不佳的难题,研制了一种油基高滤失承压堵漏剂。开展悬浮稳定性、滤失时间、初始强度、承压能力和钻井液适配性评价实验,分析了油基高滤失承压堵漏剂的特性及堵漏原理,探讨了油基高滤失承压堵漏工艺及其现场应用效果。研究表明:油基高滤失承压堵漏剂由纤维、多孔惰性材料、渗滤性材料、助滤剂按特定比例均匀混合而成,配制的堵漏浆悬浮稳定性好,全滤失时间小于50 s,固化体初始强度高,150 ℃下快速滤失性质稳定,承压能力为10.0~19.0 MPa,钻井液适配性好。现场应用效果显示,油基钻井液高滤失承压堵漏技术工艺简便安全,油基钻井液适应性强、承压能力高,适用于油基钻井液小型、中型、大型漏失和水基钻井液强水敏泥页岩地层漏失。该研究为页岩地层油基钻井液承压堵漏提供了一种新的技术解决方案。

关键词: 油基钻井液, 页岩, 滤失, 井漏, 承压堵漏

Abstract: For the issue of frequent and severe oil-based drilling fluid losses in shale formations and the ineffectiveness of conventional plugging methods, an oil-based high filtration loss pressure-bearing plugging agent has been developed. Tests on its suspension stability, filtration time, initial strength, pressure-bearing capacity, and compatibility with drilling fluids were conducted. The properties and plugging mechanism of the agent were analyzed, along with its application process and field performance. The study shows that the oil-based high filtration loss plugging agent is a uniform mixture of fibers, porous inert materials, infiltrating materials, and filter-aids in specific proportions. The formulated slurry has good suspension stability, a total filtration time of less than 50 seconds, high initial strength of the solidified body, stable rapid filtration properties at 150 ℃, a pressure-bearing range of 10.0 to 19.0 MPa, and good compatibility with drilling fluids. Field application results show that this technology is simple and safe in operation, with strong adaptability of the oil-based drilling fluid and high pressure-bearing capacity. It is suitable for plugging small, medium, and large-scale losses in oil-based drilling fluids, as well as for addressing leakage in water-sensitive shale formations using water-based drilling fluids. This study offers a new solution for plugging the oil-based drilling fluid loss in shale formations.

Key words: oil-based drilling fluid, shale, filtration loss, lost circulation, pressure-bearing plugging

中图分类号:

TE928

张婧, 衡德, 徐兴海, 李博, 文乾彬, 黄旭东, 温杰. 页岩地层油基高滤失承压堵漏技术[J]. 特种油气藏, 2025, 32(4): 143-148.

ZHANG Jing, HENG De, XU Xinghai, LI Bo, WEN Qianbin, HUANG Xudong, WEN Jie. Oil-based high filtration loss pressure-bearing plugging technology for shale formations[J]. Special Oil & Gas Reservoirs, 2025, 32(4): 143-148.

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页岩地层油基高滤失承压堵漏技术

Oil-based high filtration loss pressure-bearing plugging technology for shale formations

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