辽河外围盆地低渗透油藏早期开发设计的探讨  

DISCUSSION OF EARLY DEVELOPMENT PROJECT DESIGN OF LOW PERMEABILITY RESERVOIRS IN THE BASINS SURROUNDING LIAOHE RIFT

作　　者：于军[1] 赵启双[1] 

机构地区：[1]辽河石油勘探局勘探开发研究院,辽宁盘锦124010

出　　处：《特种油气藏》1994年第1期29-34,共6页Special Oil & Gas Reservoirs

摘　　要：低渗透、特低渗透至今没有一个公认的划分标准。前苏联和国内部分学者将空气渗透率小于50×10^(-3)μm^2的储层称为低渗透。针对我局外围中生代盆地油藏埋深550～1700m,空气渗透率介于(1～40)×10^(-3)μm^2之间等油藏地质特征进行较为详细的论述,指出了在外围低渗透油藏早期开发设计与评价中,确定150～200m开发井距、适时补充能量的开发方式、一套或两套开发层系及4～9t/d的单井生产能力等主要开发指标与参数的探讨方法,并从财务内部收益率、投资回收期等经济评价角度加以分析论证。实践证明,我们确定的方法是可行的。There is still no acknowledged dividing standard for low permeability and extra low permeability reservoirs. Scholars from F. U . R and China defined the reservoirs with the permeability less than 50×10 3 μm2 as low permeability reservoirs. The geological characteristics of buried depth of 550~1700 m and air permeability of (1 -40)×10-3 μm2 of the reservoirs in the surrounding Mesozoic basins were carefully discussed to determine the main development index and parameters of well space of 150-200 m, the development mode of supplementing energy on time, one or two sets of development layer series as well as single well productivity of 4 ~ 9 t/d. The analysis and discussion were given from the economic point of view of internal financial benefit and payback period of the investment,etc. . Practice shows that our method and operating way is feasible.

关 键 词：低渗透油气藏 早期开采 井网密度 经济评价 

分 类 号：TE345[石油与天然气工程—油气田开发工程]