基于地质工程一体化的超深井提速提产——以塔里木盆地库车坳陷为例

doi:10.7657/XJPG20220212

摘要/Abstract

摘要：

塔里木盆地库车坳陷油气资源丰富,勘探潜力大,但地质背景复杂,目的层埋深普遍大于6 000 m,甚至超过8 000 m,油气勘探开发难度大。针对库车坳陷超深井地质工程特点及现存问题,基于地质工程一体化理念,提出了解决思路,并介绍了塔里木油田首口盐层下部大斜度井的成功实践。研究及实践表明,地质力学研究有利于减少钻井复杂事故并提高机械钻速,助力有利储集层优选和改造方案优化,支持钻井提速和改造提产;地质工程一体化是复杂油气藏高效开发的必然选择,需要充分发挥多学科协同工作的优势,且贯穿于各井全生命周期,以产生最大的效益,实现从井位部署、钻井工程、完井改造到采油气工程的整体进步,从而助力大油气田建设。

关键词: 塔里木盆地, 库车坳陷, 超深井, 地质工程一体化, 地质力学, 大斜度井, 提速, 提产

Abstract:

The Kuqa depression in the Tarim basin is rich in oil and gas resources and has great potential for exploration. However, the geological setting in this area is complex and the target layers are generally buried deeper than 6 000 m, or even more than 8 000 m, making oil and gas exploration and development difficult. Considering the geological engineering characteristics and existing problems of ultra-deep wells in the Kuqa depression, a solution based on the concept of geology-engineering integration is proposed, and the successful practice of the first pre-salt highly-deviated well in Tarim oilfield is introduced. Research and practices show that geomechanical research is beneficial to reducing drilling complexities and increasing rate of penetration, can help select favorable reservoirs and optimize stimulation schemes, and finally support the ROP improvement and production enhancement. The geology-engineering integration is necessary for efficient development of complex oil and gas reservoirs. In this aspect, multiple disciplines will be collaborated in operations through the life cycle of each well to generate the maximum benefits and achieve overall progress from well location deployment, drilling engineering, well completion and stimulation to oil/gas production engineering, thereby facilitating the construction of large oil and gas fields.

Key words: Tarim basin, Kuqa depression, ultra-deep well, geology-engineering integration, geomechanics, highly deviated well, ROP improvement, production enhancement

中图分类号:

TE371

蔡振忠, 徐珂, 张辉, 王志民, 尹国庆, 刘新宇. 基于地质工程一体化的超深井提速提产——以塔里木盆地库车坳陷为例[J]. 新疆石油地质, 2022, 43(2): 206-213.

CAI Zhenzhong, XU Ke, ZHANG Hui, WANG Zhimin, YIN Guoqing, LIU Xinyu. ROP Improvement and Production Enhancement for Ultra-Deep Wells Based on Geology-Engineering Integration: A Case in Kuqa Depression, Tarim Basin[J]. Xinjiang Petroleum Geology, 2022, 43(2): 206-213.

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