摘要
自2井在投产前没有测其原始地层压力,由于井位附近地下溶洞的存在,也无法进行关井、洗井等措施,只能根据生产数据进行其原始地层压力的预测。通过对压降储量和生产动态曲线进行线性拟合,求得自2井原始地层压力约为18.0MPa。对于自2井的井底流压则采用Cullender-Smith单相流和采用Beggs-Brill气水两相流计算方法进行计算,通过常规分析和数值模拟对自2井末期的生产动态进行分析研究,确定自二井剩余可采储量、水体性质、产水方式、水侵程度、拟合气井生产历史动态,从而最大限度提高该井的采收率。
It is possible that the Zi 2 gas well will well shutdown in production along with the increasing of reserve recovery degree and decreasing of reservoir pressure.And also it will result serious influence on the development of Zigong operational zone and the living of citizen.So,it's necessary to do some research on the production performance of Zi 2 gas well in order to define the remaining recoverable reserves,the character of water aquifer,water production way,water invasion degree,match the history production performance,and enhance the gas well recovery ratio.
出处
《钻采工艺》
CAS
北大核心
2008年第2期80-82,共3页
Drilling & Production Technology
关键词
自2井
动态分析
历史拟合
提高采收率
Zi 2 well,production performance,history production fitting,enhanced oil recovery
