摘要
水驱油田的合理井网密度研究是油田开发方案设计和开发调整的一项重要工作。根据经济学的盈亏平衡原理,综合考虑油田开发过程中钻井投资、地面投资、原油销售收入和利率等因素推导得到了一种水驱油田层系合理井网密度计算模型,并对已有的动态数据劈分方法进行了改进,考虑了生产压差对劈分结果的影响,提高了数据劈分的精度,为分层合理井网密度研究提供了可靠的数据基础。应用该模型解决了传统合理井网密度研究只是针对地面井网密度的局限性,使井网调整细化到不同物性、不同开发阶段的层系,使井网的调整和加密具有更强的针对性,为特高含水期油田分层系的井网调整提供了参考依据。
It is an important task to research the reasonable well spacing density in water flooded oilfields for the oiffield developing program design and adjustment. Based on economic break-even principle, with the help of the comprehensive consideration in the drilling and ground construction investments and oil sale income and profit and other factors in the process of the oilfield development, the calculating model of the well spacing density of the waterflooded oilfield is derivated, and moreover the cleaving method of the existed dynamic data is improved, considering the influences of the production pressure on the cleaved results, the precision of the data cleavage is enhanced, thus the sound and reliable basis has been provided for the study on the reasonable density. By means of the model established above, the limitation and restriction of the surface well spacing density in the traditional research on the reasonable well spacing density is solved, and then the well pattern adjustment can be detailed into the serieses of the strata with different physical properties and development stages, so the adjustment and infilling of the well pattern become more stronger targeted and provide a certain references for the well spacing adjustment of the divided serieses of the strata of the extra-high-watercut oilfield.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2015年第4期78-81,共4页
Petroleum Geology & Oilfield Development in Daqing
基金
国家科技重大专项及示范工程"大庆长垣特高含水油田提高采收率示范工程"(2011ZX05052)资助
关键词
达西定律
动态数据
井网密度
层系
潜力
Darcy＇ s law
dynamic data
well spacing density
series of the strata
potential
