| 岗钾1井高压卤水层井控技术 |
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| 引用本文： | 蔡利山,张良万,叶诗君,李荣刚,谢先云. 岗钾1井高压卤水层井控技术[J]. 石油科技论坛, 2011, 0(6): 23-25 |
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| 作者姓名： | 蔡利山 张良万 叶诗君 李荣刚 谢先云 |
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| 作者单位： | 中国石化石油工程技术研究院钻井液研究所;中国石化江汉石油管理局钻井一公司; |
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| 基金项目： | 蔡利山,1963年生,1983年毕业于长春地质学校钻探专业,2007年毕业于石油大学石油工程专业,高级工程师,主要从事钻井液技术研究工作.E-mail：cails.sgky@sinopec.com;yhl778@126.com |
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| 摘 要： | 岗钾1井是一口地质勘探井,施工时提前钻遇了高压卤水层并发生溢流。关井后先后采用了自环空注加重钻井液的"平推法"和自钻具水眼注加重钻井液的"正注法"平衡地层压力,但由于过饱和卤水在上返过程中结晶速度较快以至于形成环空堵塞,给建立循环带来了很大的困难,在试图建立循环过程中,发现裸眼井段存在易漏失的薄弱层,较难建立液柱平衡压力。针对这些问题,采用精确监测压井过程中的压力变化、合理使用压井液密度、合理调节泵注排量等手段,并以正注、反注相结合的技术措施,最终疏通环空建立了循环,顺利完成了压井作业。
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| 关 键 词： | 高压卤水层 井控技术 |
Well Control of High Pressure Brine in Well Gangjia 1 |
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| Cai Li-shan,Zhang Liang-wan,Ye Shi-jun,Li Rong-gang,Xie Xian-yun. Well Control of High Pressure Brine in Well Gangjia 1[J]. , 2011, 0(6): 23-25 |
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| Authors: | Cai Li-shan Zhang Liang-wan Ye Shi-jun Li Rong-gang Xie Xian-yun |
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| Affiliation: | Cai Li-shan1,Zhang Liang-wan2,Ye Shi-jun2,Li Rong-gang2,Xie Xian-yun2(1.SINOPEC Research Institute of Petroleum Engineering,2.No.1 Drilling Company of SINOPEC Jianghan Petroleum Administration Bureau) |
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| Abstract: | Gangjia 1 is a geological exploration well.It encountered unexpected high pressure brine and followed with overflow during the drilling process.In order to keep the balance of pressure between the formation and the hole,the weighted drilling fluids were pumped in annular space(plunger method) and then the drill string(injection method) after the well was shut in.However,due to the high rate of crystallization for the supersaturated brine in the upward process,well annular space was plugged which was difficu... |
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| Keywords: | high pressure brine well control |
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