温八区块凝析气藏开发数值模拟研究

A RESEARCH ON NUMERICAL SIMULATION OF BLOCK WEN-8 CONDENSATE GAS RESERVOIR DEVELOPMENT

温八块油气藏位于新疆吐鲁番地区鄯善县七克台镇附近 ,与温吉桑、米登油田邻近 ,属于温吉桑构造带。该油气藏是一个带油环的凝析气藏 ,自 1 993年 8月W 8— 45井投产试采以来 ,截止 1 996年 1 2月止 ,有近 4年的油环开发历史。随着鄯乌输气工程即将投运 ,温八块凝析气的开发成为研究的焦点。文章在充分研究吐哈油田温八油气藏地质及开发特征的基础上 ,应用全组分模型 ,模拟计算了开采方式、开发层系、井网、井口压力、采气速度及规划配产等因素对开发效果的影响 ,通过技术指标对比分析 ,优选出实施方案 ,配合丘东凝析气田 ,为吐哈凝析气地面轻烃回收和地面开发工程提供了依据。

The Block Wen-8 oil and gas reservoir is located in the vicinity of the Qiketai Town,Shanshan County,Tulufan Prefecture,the Xinjiang Uyghur Autonomous Region,being near to the Wenjisang oil field and Mideng oil field and belonging to the Wenjisang structural belt.The oil and gas reservoir is a condensate gas reservoir with a oil ring.Since the well W8-45′s being put into production test in August 1993,there had been an oil-ring development history of about 4 years by the end of December 1996.Because the Shan-Wu gas transportation engineering will be put into operation,the Block Wen-8 condensate gas reservoir development has become a focal point of the research work.In the paper,on the basis of fully studying the geological and development characteristics of the Block Wen-8 oil and gas reservoir of Tu-Ha Oil Field,the effects of these factors as recovery method,development layer series,well pattern,wellhead pressure,gas production rate,planning and proration,etc.,on the development effectiveness are simulatively calculated by use of a full component model;through the correlation and analysis of various technical criteria,an operated plan is optimized;and in coordination with Qiudong condensate gas field,the bases are provided for the surface NGL recovery and surface development engineering construction of condensate gas in Tu-Ha region.