浅层稠油油藏热采合理井网密度及加密可行性研究

本文针对浅层稠油油藏热采目前生产井网、井距形式及井网密度现状，利用密闭取心、生产动态分析、驱替特征、累积产量特征、油藏热平衡、数值模拟及国外稠油采井网密度类比等研究方法，对优化合理井距、极限井距及经济合理生产井数进行了系统分析，指出了浅层稠油油藏热采目前的井网尚需进行加密，才能真正有效运用油藏、进而改善蒸汽吞吐和蒸汽驱开发效果。

REASONABLE WELL DENSITY AND FEASIBILITY OF INFILL DRILLING IN A THERMAL DRIVED SHALLOW HEAVY OIL RESERVOIR

Based on the results of analysis of sealed cores, well behavior analysis, thermal drive characteristics, Cumulative production characteristics f(nt) method], thermal equilibrium in the reservoir, reservoir numerical simulation and a correlation of the well density used in foreign shallow heavy reservoirs developed by thermal drive, this paper deals with the optimization of well density and well pattern currently used in one of shallow heavy oil reservoir operated by thermal drive. A systematic analysis of limiting well spacing and reasonable number of wells shows that this thermally operated reservoir should be infill drilled to more effectively develop the reservoir and to improve the results of steam huff-puff and steam drive. This well contribute significantly to the increase the ultimate recovery, to enhance the recovery factor, and this in the main way for a production increase and stake production maintainance in the near future.