| 巴什托背斜石炭系地层井壁失稳机理及控制技术 |
| |
| 引用本文： | 陈涛,乔东宇,牛晓,郑义平. 巴什托背斜石炭系地层井壁失稳机理及控制技术[J]. 钻井液与完井液, 2011, 28(5) |
| |
| 作者姓名： | 陈涛 乔东宇 牛晓 郑义平 |
| |
| 作者单位： | 1. 西部钻探克拉玛依钻井工艺研究院,新疆克拉玛依
2. 西北油田分公司工程技术研究院,乌鲁木齐 |
| |
| 摘 要： | 新疆巴楚地区巴什托背斜构造地层十分复杂,在钻进过程中喷、塌、卡、漏等复杂情况交互出现,其中石炭系地层井壁失稳表现尤为突出,且采用的高密度(1.90～2.15 g/cm3)钻井液体系维护难度大,更增加了井壁失稳的风险.从地质力学因素、物理化学因素2方面分析了石炭系地层井壁失稳的机理,选用了KCI/聚磺-聚合醇钻井液体系及相应的技术措施,使平均井径扩大率控制在2.55％左右,较好地满足了该地区井壁稳定的要求.
|
| 关 键 词： | 石炭系 高密度钻井液 井壁失稳 地质力学 物理化学 巴什托背斜 |
Control Technology and Mechanism of Borehole Instability in Formation of Bashituo Anticline Carboniferous System |
| |
| CHEN Tao,QIAO Dongyu,NIU Xiao,ZHENG Yiping Kalamay Drilling Technology Researches,West China Drilling , Exploration Co.Ltd.,CNPC,Kalamay,Xinjiang ,China. Control Technology and Mechanism of Borehole Instability in Formation of Bashituo Anticline Carboniferous System[J]. Drilling Fluid & Completion Fluid, 2011, 28(5) |
| |
| Authors: | CHEN Tao QIAO Dongyu NIU Xiao ZHENG Yiping Kalamay Drilling Technology Researches West China Drilling Exploration Co.Ltd. CNPC Kalamay Xinjiang China |
| |
| Affiliation: | CHEN Tao,QIAO Dongyu,NIU Xiao,ZHENG Yiping Kalamay Drilling Technology Researches,West China Drilling and Exploration Co.Ltd.,CNPC,Kalamay,Xinjiang 834000,China |
| |
| Abstract: | The formation of Bashituo anticline is very complicated,the most difficult is borehole instability in Carboniferous system,and the mud density is up to 1.90-2.15 g/cm3,which leads more risk of borehole instability.This paper focuses on the mechanism of borehole instability,and analyses it from two aspects of geo-mechanics and physical chemistry.The KCI/polysulfonate-polyglycol drilling fluid system was applied successfully to control the enlargement within 2.55%. |
| |
| Keywords: | Carboniferous system High density drilling fluid Borehole instability Control technology |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
