陆梁油田K1h2^3油藏调驱数模研究

THE NUMERICAL EMULAION RESEARCH ABOUT ADUJUSTING FLOOD FOR K_1h_2~3 RESERVOIR IN LULIANG OILFIELD

由于陆梁油田薄层、边底水油藏的特殊性,常规的堵水、调驱等治理含水上升的措施在陆梁油田很难取得较好的增产效果。虽然2004年进行了11口堵水措施(压水锥)、1井次调驱实验,取得一定的效果,但其主要目的是抑制油井含水上升,对于油藏边部油层条件较差的高含水井是否适用,还有待于进一步实验。针对以上存在的问题,依据地质研究成果开展调驱数值模拟研究,通过数值模拟,筛选合理的地质、配方参数,优化配方方案,找出最合适的配方类型、体系,为深部调驱的早期介入提供决策依据,为油藏长期稳产提供技术支撑。通过数值模拟研究,优化筛选出了适合本油藏的调驱配方体系及其施工参数,筛选确定了施工方案,结合经济效益评价认为该油藏开展调驱措施是切实可行的。

Because of the specialness of Luliang oilfield that there are thin layers and the side bottom water measures of,the usual regulations of blocking up water and adjusting flood can hardly obtain increasing production.Although experiments were carried out 11 times on blocking up water measures(pressing up the water)and 1 time on adjusting flood in 2004,and certain was result obtained,but its main purpose is to repress the rising of water in oilwells,and it would be treated in the further experiments whether those measures applied to the high watercut oilwells of the poor layers in the sides of reservoir.Aiming at the above existent problems,we will go on numerical emulation according to the geology,and pass it to sieve reasonable geological,chemical formulation parameters,and then optimize the chemical formulation projects,further find out optinum chemical formulation types and systems,and it will provide the decisions in early days for adjusting flood,and provide the technique to prop up for long term steady production in reservoir.Through the numerical emulation research,we find out reasonable chemical formulation systems and parameters,sieve the construction projects,and think it is actually viable combining the economic benefit evaluation to outspread the adjusting flood in this reservoir.