摘要
依据单井可采储量可进行油田年度新钻井增加可采储量计算，是实现可采储量精细化管理和年度投资效益客观评价的基础。因此，有必要研究单井可采储量主要影响因素及其变化规律，为建立年度新钻单井可采储量评价方法提供依据。单井可采储量影响因素多而复杂，应用综合分类法可将单井可采储量的影响因素归为5类：油藏类型、开发方式、开发新老区域和井型、初始产量和初始含水率。理论推导出的单井可采储量的大小主要体现在初始产量和初始含水率这2个开发指标上，单井可采储量随初始产量的增大而增大，且在初始产量较低时，增大速度较快，在初始产量较高时，增大速度变缓；单井可采储量随初始含水率的升高而减小，在含水率小于60％条件下，减小速度较快；在含水率高于60％条件下，减小速度变缓。
The reserve calculation of the annual newly-drilled wells can be conducted with the help of the individual well reserve for an oil field, thus the achievement can be the basis to fulfill the fine reserve management and objectively evaluate the annual investment benefits. So it is necessary to study the main influencing factors and their changed laws of single well reserve and furthermore provide a basis for developing the evaluating methods for annual newly-drilled wells. There are many complicated influencing factors for the reserve, they can be classified into five kinds by means of integrated dividing method： reservoir types; development schemes; developed new and old regions and well types; initial productions and initial water cuts. The size of the Theoretically inferred reserve is mainly displayed by two development indexes, i. e. initial production and initial water cut and moreover the scale grows with the rise of initial production. In the meantime, the growth rate gets faster when the initial production is much lower ; when the initial production is higher, the result in just on the contrary. The reserve declines with rather higher initial water cut and moreover the decline rate gets faster when the water cut is less than 60%, and it gets reatly slower when the water cut is more than 60%.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2012年第4期82-87,共6页
Petroleum Geology & Oilfield Development in Daqing
关键词
单井可采储量
油藏类型
开发方式
井型
reserve of individuaL/single well
reservoir type
developing scheme/mode
well type
