摘要
四川盆地天然气勘探潜力巨大,在川东及川中工区,中石化经过多年的勘探,在普光、元坝等区块长兴组相继发现储量规模巨大的高含硫化氢生物礁相气藏,此类气藏硫化氢含量高(2%～17%),对钻探、环境、安全等方面均存在较大危害。应用基于离子色谱工艺的高硫化氢气层检测方法,辅以录井生物礁预测、岩性识别等技术,建立录井数据交会解释图版,可以在实钻中快速识别出长兴组高含硫化氢气层,满足了四川工区的勘探需要。具有一定的推广意义。
Sichuan Basin has huge potential in natural gas exploration.Over many years of exploration,SINOPEC has discovered the Puguang and Yuanba biohermal gas reservoirs with high hydrogen sulfide(H 2 S) content in the Changxing formation of east and middle Sichuan.The reservoirs have high H 2 S content(2% ～ 17%),which is hazardous to drilling,environment and safety.This research establishes a crossplot interpretation chart of mud logging data based on ion chromatography and assisted with techniques such as reefs prediction and lithology identification to quickly identify high H 2 S gas reservoirs during drilling into the Changxing formation,thus satisfying the need of exploration demand in Sichuan.
出处
《特种油气藏》
CAS
CSCD
北大核心
2013年第4期10-12,151,共3页
Special Oil & Gas Reservoirs
基金
中国石油化工集团公司科研项目"碳酸盐岩弱气显示录井识别与定量解释"(JP100011)
关键词
四川盆地
长兴组
生物礁气层
硫化氢
录井识别
Sichuan Basin
Changxing formation
biohermal gas reservoirs
hydrogen sulfide
mud logging identification
