一种高回弹性井壁承压封堵剂

王同友; 张伟

doi:10.3969/j.issn.1001-5620.2020.03.010

一种高回弹性井壁承压封堵剂

doi: 10.3969/j.issn.1001-5620.2020.03.010

王同友,
张伟

中海油田服务股份有限公司油田化学事业部, 河北燕郊 065201

详细信息

作者简介:
王同友,高级工程师,1969年生,毕业于石油大学(华东),现在从事固井工艺研究及现场技术服务工作。

中图分类号: TE282
计量
- 文章访问数: 431
- HTML全文浏览量: 157
- PDF下载量: 108
- 被引次数: 0
出版历程
- 收稿日期: 2019-12-15
- 刊出日期: 2020-06-28

A Highly Resilient Borehole Wall Strengthening Plugging Agent

Oilfield chemistry division, China Olifield Services Limited, Yanjiao, Hebei 065201

摘要

摘要: 井壁稳定是保证钻井施工安全顺利的前提，也是钻井作业关注的重点和难点。弹性石墨因为其独有的回弹特性，在井壁增强和封堵承压方面具有其它封堵材料无可取代的优势。井壁承压封堵剂PF-RG是国内自主生产的弹性石墨材料，具有完全惰性、无磁性、高抗温性等优良性能，在水基钻井液和油基钻井液有良好的适应性，不影响流变性，降低润滑系数的同时大幅度降低滤失量。经过压弹性实验评价，该材料具有非常高的回弹特性，回弹率超过20%，最高达到100%以上，与国外同类产品相媲美。目前井壁承压封堵剂PF-RG已经在现场作业中成功应用，证明了该材料具有优良的承压封堵能力。
- 井壁承压 /
- 弹性石墨 /
- 回弹率 /
- 漏失 /
- 封堵
Abstract: Borehole wall stability is a prerequisite for safe and smooth drilling, and also a key point and a difficult problem worth attention in drilling operation. Elastic graphite, because of its unique resilience, has unparalleled advantages in strengthening and plugging borehole walls. PF-RG is an elastic graphite borehole wall strengthening plugging agent produced independently in China. It is completely inert, nonmagnetic and high temperature resistant. It can be used both in water base drilling fluids and oil base drilling fluids, without affecting their rheology property. It reduces the friction coefficient of drilling fluids. Drilling fluids treated with PF-RG have their filtration rate greatly reduced. High pressure elasticity test results showed that PF-RG has very high resilience, with its rate of resilience greater than 20% to 100%, the maximum, equivalent to similar products produced abroad. PF-RG has been successfully used in field operations, proved that its good pressure bearing capacity has been accepted by those who have used PF-RG.
- Borehole wall strengthening /
- Elastic graphite /
- Rate of resilience /
- Mud loss /
- Plug

HTML全文

参考文献(5)

[1]	SHARATH SAVARI, DONALD L WHITFILL, ARUNESH KUMAR.Resilient lost circulation material (LCM):A significant factor in effective wellbore strengthening[R].SPE 153154.
[2]	DON WHITFILL.Lost circulation material selection, particle size distribution and fracture modeling with fracture simulation software[R].SPE 115039.
[3]	ARUNESH KUMAR, SHARATH SAVARI, DALE EUGENE JAMISON,et al.Wellbore strengthening:The less-studied properties of lost-circulation materials[J].SPE 133484.
[4]	张琰, 刘艳. 弹性石墨在钻井液中的应用研究[J]. 天然气工业, 2003, 23(1):42-44. ZHANG Yan, LIU Yan.Application of Elastic graphite in drilling fluid[J].Nature Gas Industry, 2003, 23(1):42-44.
[5]	田建东. 托普台区块易漏失地层特征分析及随钻堵漏剂优选[D]. 北京:中国地质大学(北京), 2014. TIAN Jiandong.Analysis of easy leakage formation features and reaserch on plugging formula while drilling in Tuobutai area[D].Beijing:China University of Geosciences, 2014.