长庆气田碳质泥岩防塌钻井液技术

张建斌; 贾俊; 刘兆利

doi:10.3969/j.issn.1001-5620.2018.03.011

长庆气田碳质泥岩防塌钻井液技术

doi: 10.3969/j.issn.1001-5620.2018.03.011

张建斌^1,2,
贾俊^1,2,
刘兆利³

1. 川庆钻探工程有限公司工程技术研究院, 西安 710018;
2. 低渗透油气田勘探开发国家工程实验室, 西安 710018;
3. 川庆钻探工程有限公司长庆钻井总公司, 西安 710018

基金项目:

川庆钻探工程有限公司科研课题“长庆气田水平井碳质泥岩井壁稳定钻井液技术研究”（CQ2016B-11-1-3）。

详细信息

作者简介:
张建斌,高级工程师,1962年生,毕业于西安石油大学钻井工程专业,现从事钻井液完井液研究工作。电话(029)86593648;E-mail:zhangjianbin@cnpc.com.cn。

中图分类号: TE254.3
计量
- 文章访问数: 722
- HTML全文浏览量: 206
- PDF下载量: 452
- 被引次数: 0
出版历程
- 收稿日期: 2018-01-24
- 刊出日期: 2018-05-30

Drilling Fluid Technology for Preventing Collapse of Carbargilite Formation in Changqing Gas Field

1. Drilling & Production Technology Research Institute of CCDC, Xi'an, Shaanxi 710018;
2. National Engineering Laboratory of Low Permeability Oil and Gas Field Exploration and Development, Xi'an, Shaanxi 710018;
3. CCDC Changqing Drilling Company, Xi'an, Shaanxi 710018

摘要

摘要: 针对长庆气田碳质泥岩段井壁失稳造成井下复杂频发、侧钻率高的问题，开展了岩样的微观结构、阳离子交换容量、矿物组成及理化性能分析，测试了钻井液对岩石力学特性及坍塌压力的影响，确定了碳质泥岩坍塌机理及防塌钻井液技术研发思路。通过实验优选出封堵剂、抑制剂等钻井液处理剂，综合采用纳米乳液、软硬结合的封堵技术，形成了强封堵强抑制高性能钻井液体系配方。该体系的HTHP滤失量≤ 6 mL，API滤失量≤ 2 mL，石盒子砂岩封堵率≥ 85%，人造岩心线性膨胀降低率≥ 60%。在长庆气田现场试验18口井，钻遇碳质泥岩后侧钻率降低至16.7%，平均钻井周期缩短30 d，达到预期效果，该钻井液技术满足长庆气田碳质泥岩井段安全钻进的需要。
- 长庆气田 /
- 碳质泥岩 /
- 井壁稳定 /
- 强封堵 /
- 钻井液
Abstract: Wellbore collapse in the carbargilite section in Changqing gas field has resulted in frequent occurrence of downhole troubles and sidetracking. To resolve these problems, rock samples taken from the carbargilite formation were studied for the microstructure, cation exchange capacity, mineral composition and physiochemical property. The effect of drilling fluid on the mechanical characteristics and collapse pressure of the rock samples was tested, and the mechanisms in which the carbargilite formation collapses and ideas on which the drilling fluid technology for preventing carbargilite formation collapse was studied were determined. A high performance drilling fluid having strong plugging capacity and high inhibitive capacity was formulated through laboratory experiment. Plugging agents of different hardness and shale inhibitors selected, and nano-emulsion were used to render the drilling fluid properties required. The HTHP filter loss and API filter loss are ≤ 6 mL and ≤ 2 mL, respectively. Rate of sandstone (Shihezi formation) plugged by the drilling fluid is ≥ 85%. Rate of linear swelling of artificial rock cores is reduced by at least 60%. Field application of the drilling fluid on 18 wells in Changqing gas field showed that the percentage of sidetracking when drilling the carbargilite formation was reduced to 16.7%. Average drilling time was reduced by 30 d. The use of this drilling fluid has achieved the desired effect, and satisfied the needs of safely drilling the carbargilite formation in Changqing gas field.
- Changqing gas field /
- Carbargilite /
- Wellbore stabilization /
- Strong plugging /
- Drilling fluid

HTML全文

参考文献(10)

[1]	李志勇,李鸿飞,张立新,等. 大牛地气田新型防塌钻井液研究及应用[J]. 石油钻探技术,2016,44(3):39-43. LI Zhiyong,LI Hongfei,ZHANG Lixin,et al. Development and field applications of a new antisloughing drilling fluid system in Daniudi Gas Field[J]. Petroleum Drilling Techniques,2016,44(3):39-43.
[2]	石秉忠,夏柏如. 硬脆性泥页岩水化过程的微观结构变化[J]. 大庆石油学院学报,2011,35(6):28-34. SHI Binzhong,XIA Boru. The variation of microstructures in the hard-brittle shale hydration process[J]. Daqing Petroleum College Journal,2011, 35(6):28-34.
[3]	孔勇, 杨小华, 徐江,等.抗高温强封堵防塌钻井液体系研究与应用[J]. 钻井液与完井液,2016,33(6):17-22. KONG Yong,YANG Xiaohua,XU Jiang,et al. Study and application of a high temperature drilling fluid with strong plugging capacity[J]. Drilling Fluid & Completion Fluid, 2016,33(6):17-22.
[4]	张国仿.涪陵页岩气田低黏低切聚合物防塌水基钻井液研制及现场试验[J]. 石油钻探技术,2016,44(2):22-27. ZHANG Guofang. The development and field testing of low viscosity and low gel strength polymer collapseresistant water-based drilling fluid in the Fuling Shale Gas Field[J]. Petroleum Drilling Techniques,2016,44(2):22-27.
[5]	石秉忠,夏柏如,林永学,等. 硬脆性泥页岩水化裂缝发展的CT成像与机理[J]. 石油学报,2012,33(1):137-142. SHI Binzhong,XIA Boru,LIN Yongxue, et al. CT imaging and mechanism analysis of crack development by hydration in hard-brittle shale formation[J]. Petroleum Journal, 2012,33(1):137-142.
[6]	王怡,徐江,梅春桂,等. 含裂缝的硬脆性泥页岩理化及力学特性研究[J]. 石油天然气学报,2011,33(6):104-108. WANG Yi,XU Jiang, MEI Chungui, et al. Study on physic-chemical and mechanical properties of hard-brittle shale with cracks[J]. Journal of Petroleum and Gas, 2011,33(6):104-108.
[7]	卢运虎, 陈勉, 袁建波, 等. 各向异性地层中斜井井壁失稳机理[J]. 石油学报, 2013, 34(3):563-568. LU Yunhu,CHEN Mian,YUAN Jianbo, et al. Borehole instability mechanism of a deviated well in anisotropic information[J].Petroleum Journal, 2013, 34(3):563-568.
[8]	王荐,卢淑芹,朱宽亮,等. 南堡油田保持中深层泥页岩井壁稳定钻井液研究[J]. 海洋石油,2012, 32(1):92-96. WANG Jian,LU Shuqin,ZHU Kuanliang, et al. Maintaining wellbore stability in deep shale drilling in Nanpu oilfield[J]. Ocean Petroleum, 2012, 32(1):92-96.
[9]	金衍, 赵辉. 弱面地层的直井井壁稳定力学模型[J]. 钻采工艺, 1999, 22(3):13-14. JIN Yan, ZHAO Hui. Mechanical model of vertical well wall stability in weak surface stratum[J]. Drilling and Production Technology, 1999, 22(3):13-14.
[10]	刘玉石. 地层坍塌压力及井壁稳定对策研究[J]. 岩石力学与工程学报, 2004, 23(14):2421-2423. LIU Yushi. Study on collapse pressure and precautions for stability of wellbore wall[J]. Journal of Rock Mechanics and Geotechnical Engineering, 2004, 23(14):2421-2423.

施引文献

资源附件(0)

访问统计

点击查看大图

计量

文章访问数: 722
HTML全文浏览量: 206
PDF下载量: 452
被引次数: 0

姓名
邮箱
手机号码
标题
留言内容
验证码

留言板

长庆气田碳质泥岩防塌钻井液技术

doi: 10.3969/j.issn.1001-5620.2018.03.011

作者简介:
张建斌,高级工程师,1962年生,毕业于西安石油大学钻井工程专业,现从事钻井液完井液研究工作。电话(029)86593648;E-mail:zhangjianbin@cnpc.com.cn。

计量

Drilling Fluid Technology for Preventing Collapse of Carbargilite Formation in Changqing Gas Field

计量

目录

留言板

长庆气田碳质泥岩防塌钻井液技术

doi: 10.3969/j.issn.1001-5620.2018.03.011

作者简介: 张建斌,高级工程师,1962年生,毕业于西安石油大学钻井工程专业,现从事钻井液完井液研究工作。电话(029)86593648;E-mail:zhangjianbin@cnpc.com.cn。

计量

出版历程

Drilling Fluid Technology for Preventing Collapse of Carbargilite Formation in Changqing Gas Field

计量

出版历程

目录

作者简介:
张建斌,高级工程师,1962年生,毕业于西安石油大学钻井工程专业,现从事钻井液完井液研究工作。电话(029)86593648;E-mail:zhangjianbin@cnpc.com.cn。