摘要
近年来苏里格致密砂岩气藏的部分气井出现了不同程度的产水现象,平均产水量约为9 m^3/d,已经严重影响了气井产能。通过对比分析可动水饱和度的常规测井解释结果与实际生产数据,建立了气井的产水特征预测方法。通过该方法对单井进行产水预测并优选射孔层位可提高气层的产气能力,有效降低了气井产水风险。在此基础之上绘制了苏里格致密砂岩气藏研究区块的可动水饱和度平面分布图,进而优选出低产水风险区,明确气田的主力储层,研究结果为致密砂岩气藏的合理开发提供了理论依据。
In the recent years, there are different degrees of the water produced in the partial gas wells in Sulige tight sand gasfield, the average water production has reached to 9 m3/d. All the conditions stated above have resul- ted in the serious influences on the gas well productivity. By contrast and analysis between the conventional logging interpretations and practical performance data of the movable water saturation, the predicting method of the water production characteristics for the gas wells is established. Based on the achievements, the planar movable water sat- uration distribution map is drawn for the study area of the gas reservoir, therefore the low-risk block of the water production is optimized, the main reservoirs of the gasfield are ensured, the research results have provided the theoretical evidences for the reasonable development of the tight sandstone gasfields in China.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2015年第2期86-89,共4页
Petroleum Geology & Oilfield Development in Daqing
基金
国家科技重大专项“低渗
特低渗油气田经济开发关键技术”(2011ZX05013)
关键词
苏里格气田
致密砂岩气藏
可动水饱和度
核磁共振
常规测井解释
产水特征预测
Sulige Gasfield
tight sandstone gas reservoir
movable water saturation
nuclear magnetic resonance（NMR）
conventional logging interpretation
water-production characteristic prediction
