神木双110井区非均质气藏井位优化部署技术

doi:10.11885/j.issn.1674-5086.2019.12.05.01

摘要/Abstract

摘要： 神木气田双110井区地质条件复杂，储层非均质性强，井位部署及跟踪调整难度极大。2017-2019年长城钻探公司与长庆油田创新合作模式，充分发挥联合开发优势，以双110井区为目标，坚持地质工程一体化，精细地质研究，优化井位部署。为了保证开发效果，从地震、测井、录井、岩芯、试气等资料入手，开展构造特征、沉积相特征、砂体及有效储层分布规律研究，建立三维地质模型，优选含气富集区。在井型、井网论证的基础上，优化井位部署，最终实现“少井高产”。共完钻直/定向井208口，对比方案少钻37口井，静态I+II类井比例达84.0%，部署完成水平井15口，平均水平井长度1 433.5 m，砂岩钻遇率83.3%，获得良好的开发效果。

关键词: 强非均质性, 井位优化部署, 地质工程一体化, 双110井区, 神木气田

Abstract: The geological conditions of Shuang 110 Well Block are complex with strong heterogeneity, and it is difficult to predict, and to deploy the well location for tracking adjustment. From 2017 to 2019, Great Wall Drilling Company has been working together with Changqing Oilfield Company on an innovative basis, aiming to complete the construction of 1 billion cubic meters of production capacity in Shuang 110 Well Block of Shenmu Gas Field. Though integration of geology and engineering, fine geological research, and well location deployment optimization, we have the goal. In order to ensure development effect, we carried out researches on structural characteristics, sedimentary faces characteristics, sand body and effective reservoir distribution using seismic data, well logging and logging data and core and gas testing data, and a three-dimensional geological model has been established to optimize the gas bearing enrichment area. Based on the demonstration of well pattern, the well location is optimized. Finally the goal of fewer wells and higher yield is realized. Finally, 208 vertical / directional wells have been drilled, with 37 wells less than original plan. The proportion of static first and second level wells is up to 84.0%. The 15 horizontal wells have been deployed and completed. The average length of horizontal wells is 1 433.5 m, and the drilling rate of sandstone is 83.3%, which proves to be a good development results.

Key words: strong heterogeneity, well location optimization and deployment, geology and engineering integration, Shuang110 Well Block, Shenmu Gas Field

中图分类号:

TE122

祝金利. 神木双110井区非均质气藏井位优化部署技术[J]. 西南石油大学学报(自然科学版), 2020, 42(4): 83-94.

ZHU Jinli. Well Location Optimization Technology of Strong Heterogeneity Gas Reservoir in Shuang 110 Well Block of Shenmu Gas Field[J]. 西南石油大学学报(自然科学版), 2020, 42(4): 83-94.

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