川西致密气藏压裂水平井生产动态预测研究  

PRODUCTION PERFORMANCE PREDICTION OF FRACTURED HORIZONTAL WELL IN CHUANXI TIGHT GAS RESERVOIR

作　　者：李华昌[1] 

机构地区：[1]中国石化西南油气分公司

出　　处：《钻采工艺》2015年第3期63-65,94,共4页Drilling & Production Technology

基　　金：国家科技重大专项课题"低渗油气田完井关键技术"项目(编号:2008ZX05022-006);中石化先导项目"川西中浅层致密气藏应用水平井提高单井产量配套关键技术"的研究成果

摘　　要：为了有效预测致密气藏水平井生产动态,基于压裂水平井多裂缝系统渗流模型并结合非稳态产能评价方法,建立了生产动态预测方法;对无限导流多裂缝模型和有限导流多裂缝模型生成了动态分析的快速模型。针对川西地区致密气藏水平井,通过Blasingame方法对生产动态资料进行拟合来确定地层参数,计算动态储量和单井产能。运用水平井渗流模型对川西低渗致密气藏水平井实际生产的稳产、产量递减、转低压管网生产以及增压开采各阶段产量和压力进行了预测。结果显示动态预测与实际生产动态相符合,说明该方法能为低渗致密气藏水平井生产动态分析和优化配产提供指导。In order to forecast effectively the production performance of horizontal well in tight gas reservoir,the production performance prediction model was established based on the seepage model of multi- fracture system and combining transient productivity evaluation methods. The production performance data were fitted to determine the formation parameter of Chuanxi tight reservoir horizontal well by using Blasingame method,and the dynamic reserves and single well productivity were also calculated. The production rate and pressure of horizontal well in each recovery stage were predicted by adopting the production performance prediction model,the results showed that the production performance prediction result was in agreement with actual production. The method could provide the reference for production performance analysis of horizontal well in low- permeability and tight reservoir.

关 键 词：致密气藏 压裂 水平井 渗流模型 动态预测 研究 

分 类 号：TE332[石油与天然气工程—油气田开发工程]