葡北油田注气混相驱开发技术

Technology for Gas Injection Miscible Phase Recovery in Pubei Oilfield of Turpan-Hami Basin

以葡北油田为例,系统阐述注气混相驱油田开发所涉及到的油藏条件、油藏精细描述、注气混相驱关键指标确定、整体开发方案设计。强调低渗透油田开展注气混相驱之前必须开展包括油藏精细描述、混相驱室内试验评价、混相驱数值模拟、经济评价等方面的综合研究。还针对葡北油田实际生产过程中所暴露的问题和油田开发效果进行了详细的分析和评价,从而丰富了低渗透油田混相驱开发的实践经验。

Taking Pubei oilfield as an example,this paper systematically presents the reservoir condition,detailed reservoir description,key index determination and overall project design in relation to gas injection miscible phase re-covery.It is stressed that detailed reservoir description,comprehensive studies,including lab experiment and evalua-tion,numerical simulation and economic assessment of miscible phase recovery,have to be performed prior gas injection miscible phase recovery for a low permeability oilfield.And analysis and evaluation in detail are made in view of issues from field production and effectiveness of Pubei oilfield development.Thus more practical experiences would be gained for the miscible phase recovery with low permeability oilfield.