应用储采比法计算孤东油田合理生产井数

Applying reserve/production ratio to calculate rational production well quantity in Gudong Oilfield

针对油田开发合理生产井数确定及加密井潜力分析方法过于复杂的问题,在分析孤东油田井网加密的统计数据基础上,总结出井网加密关键技术界限:一是加密新井年产油量是老井平均值的2倍;二是加密新井单井新增可采储量是老井平均年产油量的10倍;三是以储采比5确定油田年平均采油量。进而提出了应用储采比法计算油田合理生产井数,以垦东32块为例验证该方法可靠性较强。介绍了在孤东油田的应用情况,用储采比法计算出了历年可加密井数以及合理生产井数,可以很方便的评价历年井网适应性变化特点。分析了孤东油田加密调整潜力,为油田今后加密调整工作提供了依据。

The determination of rational production well quantity in oilfield and infill potential analysis were too complicated, technical advices on infill well pattern was summarized in this paper based on statistics of infill well pattern in Gudong Oilfield. Firstly, the annual oil production of new infilling wells is double of average production of old wells. Secondly, incremental recoverable reserve of new infilling well is 10 times of average annual oil production of old wells. Thirdly, determine annual production when reserve/ production ratio is 5. And then method of using reserve/production ratio to calculate rational production well quantity is proposed by this paper, and it＇ s proved effective by the application to Kendong 32 Block. The use of reserve/production ratio to Gudong Oilfield has been also introduced in the paper, and infilling wells are calculated as well as rational production well quantity, which provide references to infilling adjustment in the future.