濮城油田西区沙二段上亚段第1砂组气顶气藏剩余气分布及挖潜研究  

Study of the distribution and tapping the potential of remaining gas in gas-cap gas reservoirs in upper Es_2~1 sand group of the western area in Pucheng oilfield

作　　者：廖家汉[1] 

机构地区：[1]中原油田分公司勘探开发科学研究院

出　　处：《油气地质与采收率》2005年第2期57-59,共3页Petroleum Geology and Recovery Efficiency

摘　　要：濮城油田西区沙二段上亚段第1砂组拥有该油田最大的气顶气藏,由于先期开发油环造成气顶严重水淹,该 气藏一直被认为无可采储量。通过储量动用状况的研究,结合动静态资料,对其水淹状况及剩余气分布进行了分 析,重新落实气藏剩余地质储量为3.82×108m3,可采储量为1.99×108m3。利用部分低效、无效及报废井上返采 气,提高了气藏的采收率。One of the largest gas-cap gas reservoirs of Pucheng oilfield is in Upper Es21sand group of the western area in the oilfield. The gas reservoir was regarded as no recoverable reserves for oil circle development at early stage resulting in severe water out in gas cap. Through study of producing reserve conditions and combined with dynamic & static information, the watered out condition and remaining gas distribution were analyzed. Remaining geologic reserves of the gas reservoirs were 3. 82 ×108m3, and recoverable reserves were 1. 99 × 108m3 after investigation again. Recovery efficiency of the gas reservoirs was enhanced after upward producing gas in low-efficient, inefficient and abandoned wells.

关 键 词：气顶气藏 濮城油田 剩余气 沙二段 分布 西区 挖潜 砂 可采储量 储量动用 地质储量 报废井 采收率 水淹 采气 

分 类 号：TE37[石油与天然气工程—油气田开发工程] TE348