塔里木盆地顺北区块二叠系井漏复杂的分析及对策
投稿时间:2019-04-11  修订日期:2020-02-12  点此下载全文
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作者单位E-mail
董小虎 中石化西北油田分公司西北油田分公司 405159856@qq.com 
中文摘要:顺北区块施工钻井项目中,二叠系的井漏复杂情况较多,漏失量大,易发生再次或多次漏失,严重时导致垮塌掉块卡钻,造成井下复杂高发,给钻井工程带来损失,影响了该区块的勘探开发速度。二叠系火成岩发育,地层破裂,钻井时井下复杂主要表现为漏失。针对此问题开展了顺北地区二叠系井漏复杂分析,结合顺北区块施工项目的实际情况以及二叠系地层特点,分析该区块的二叠系钻进难点,总结了随钻堵漏技术具体的施工措施和不同漏速下的堵漏方案,经过实践验证,该综合防漏堵漏对策能有效减少井漏复杂,提高堵漏效率。
中文关键词:顺北区块  二叠系  井漏复杂  随钻堵漏
 
Complex analysis and countermeasures of Permian well leakage in shunbei block of tarim basin
Abstract:In the construction and drilling project of the Shunbei block, there are more complicated wells in the Permian system, which have a large amount of leakage and are prone to repeated or multiple leakage. In serious cases, it leads to the collapse of the block drill, causing a high level of complexity in the underground and bringing losses to the drilling project. Affected the speed of exploration and development of the block. Permian igneous rock development, strata rupture, drilling underground complex is the main manifestation of leakage. In order to solve this problem, a complex analysis of the Permian well leakage in the Shunbei area was carried out, and the difficulty of the Permian drilling in the area was analyzed in the light of the actual situation of the construction project in the Shunbei block and the characteristics of the Permian strata. This paper summarizes the concrete construction measures and schemes of leak plugging with drilling and at different speed, and proves that this comprehensive leak plugging strategy can effectively reduce the complexity of the leak and improve the efficiency of leak plugging.
keywords:Shunbei block  Permian  Complicated wells  Plug the leak with the drill
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