摘要
试油试采产量是制订开发方案的重要依据,大量的实际资料分析证明:探井试油阶段和开发稳产阶段的产量关系是离散的,由于求产时间、求产方式不同,两阶段产量之间难以建立等量关系,单纯采用日产油量对比,不符合油藏工程学的基本原理。通过对比采油指数定义进行理论分析,结合G708区块典型井的试油、试采资料,分析不同生产阶段比采油指数的变化规律,与区块开发初期投产井资料比采油指数变化趋势进行对比。证明试油期的比采油指数偏高,会产生高估区块产能的错误决策,而试采阶段比采油指数变化规律基本反映区块开发初期产能。阐述了区块投产前进行单井试采施工的必要性。
Oil testing and production testing output is an important basis to formulate development schemes.Analysis on a large number of actual data proved that the correlation of output was discrete between the oil testing phase and the phase of stable production.Owing to different time and different means for production test,it was difficult to establish equivalent relationship of output between the two phases.To compare only based on daily oil output does not conform to the fundamental principle of reservoir engineering?Through theoretical analysis on the definition of specific productivity index,combined with the oil testing and production testing data of typical wells in Block G708,this paper analyzed the changing law of specific productivity indexes of different production phases,and compared it with the variation trend of specific productivity indexes at the early stage of development.It was proved that the specific productivity index was higher at oil testing phase and wrong decision might be made about overevaluation of block productivity,while the changing law of specific productivity indexes at production testing phase basically reflected the productivity of the block at early development period.This paper also elaborated the necessity of carrying out single一well production testing before the block was produced.
作者
苏宏宇
马华丽
刘庆辉
王锐
Su Hongyu;Ma Huali;Liu-Qinghui;Wang Rui(Oil Testing and Production Testing Branch Company of Daqing Oilfield;Testing Technology Services Company of Daqing Oilfield)
出处
《采油工程》
2011年第2期53-56,81,共5页
Oil Production Engineering
关键词
试油
试采
产能评价
比采油指数
oil testing
production testing
productivity evaluation
specific productivity index
