摘要
苏里格气田苏53区块盒8、山1段气藏为低渗低丰度岩性气藏。在分析该区块地质特征基础上,结合气井生产动态资料,采用经济极限单井面积法、技术最优单井面积法及数值模拟法探讨了低渗透、低丰度岩性气藏合理井网井距。3种井距设计方案结果表明:采用南北向排距大于东西向井距的600m×1200m近似菱形基础井网能最大限度地提高采收率,并获得最佳经济效益,而且便于后期开发加密调整。
The gas reservoirs in the He 8 and Shan 1 formations in the Su 53 block of the Sulige gas field are lithologic gas reservoirs of low permeability and low reserves abundance. Rational well pattern and well spacing are studied based on analysis of geological features and gas well production performance in the Su53 block by employing the economic limit and optimum technology of single well area as well as numerical simulation. 3 scenarios of well spacing indicate that the basic well pattern of 600m×1200m of approximately diamond shape with the NS array spacing larger than the EW well spacing can maximize the recovery factor,achieve the best economic benefit and facilitate subsequent infill adjustment.
出处
《特种油气藏》
CAS
CSCD
2010年第5期73-76,共4页
Special Oil & Gas Reservoirs
基金
中油长城钻探工程有限公司重点科技攻关项目"苏里格合作开发区块天然气勘探开发配套技术研究"(2008120-2)
关键词
苏里格气田
苏53区块
低渗、低丰度、岩性气藏
井距优化
经济极限
数值模拟
Sulige gas field
Su 53 block
low permeability
low reserves abundance
lithologic gas reservoir
well spacing optimization
economic limit
numerical simulation
