天然气地球科学

• 天然气地质学 • 上一篇    下一篇

准噶尔盆地新光地区佳木河组致密砂岩气有利区资源潜力综合分析

何文军,杨海波,费李莹,王学勇,杨彤远,杨翼波,鲍海娟   

  1. 中国石油新疆油田分公司勘探开发研究院,新疆 克拉玛依 83000
  • 收稿日期:2017-06-16 修回日期:2017-12-15 出版日期:2018-03-10 发布日期:2018-03-10
  • 作者简介:何文军(1988-),男,新疆博乐人,工程师,硕士,主要从事油气资源评价及油气勘探研究.E-mail:fchwj@petrochina.com.cn.
  • 基金资助:

    中国石油天然气股份公司重大科技专项(编号:2013E050206-01);国家科技重大专项(编号:2016ZX05003-005;2016ZX0507-002)联合资助.
     

Comprehensive analysis of tight sandstone gas resource potential in thefavorable area of Jiamuhe Formation in Xinguang area,Junggar Basin

He Wen-jun,Yang Hai-bo,Fei Li-ying,Wang Xue-yong,Yang Tong-yuan,Yang Yi-bo,Bao Hai-juan   

  1. Research Institute of Exploration and Development,Xinjiang Oilfield Company,PetroChina,Karamay 83000,China
  • Received:2017-06-16 Revised:2017-12-15 Online:2018-03-10 Published:2018-03-10

摘要:

准噶尔盆地中拐凸起新光地区二叠系佳木河组气藏属于致密砂岩气藏范畴,以目前钻井及地震获得的地质资料为基础,结合前人的地质认识,系统总结出该区致密砂岩气藏成藏地质特征:①气源充足,源储紧邻;②储层普遍致密,存在局部浊沸石溶蚀“甜点”;③储层致密时间与成藏时间匹配并存在多期充注;④存在良好的封盖条件;⑤不整合—断裂—微裂缝空间匹配关系为气运聚提供良好疏导条件;⑥宽缓的斜坡背景下,储层普遍含气,局部富气,气水倒置;⑦气藏内部存在异常压力。基于以上地质特征,解剖确定气藏成藏的主要控制因素,获得关键评价参数,通过关键参数的多条件叠合确定致密砂岩气藏的有利勘探区域。并依据资料实际情况,优选资源丰度类比法、蒙特卡洛随机模拟法及致密砂岩气快速评价方法对有利区气资源量进行估算,该区致密砂岩气资源量约为1 68×108m3。
 

关键词: 准噶尔盆地, 新光地区, 佳木河组, 致密砂岩气, 气藏特征, 资源评价

Abstract:

Gas reservoirs of Permian Jiamuhe Formation in Xinguang area,Jungger Basin are tight sandstone gas reservoirs.Based on present geological data by well and seismic,and previous geological knowledge about this area,the author made a systematic summary about the geological characteristics:(1)abundant source,close distance between source and reservoirs;(2)tight reservoirs with “sweet spots”;(3)the tight time of reservoir is matched with the accumulation time,and the gas charging is multiphased;(4)good capping capability;(5)matched relationship between unconformity,faults and microcracks created good conditions for gas migration;(6)located in a wide and gentle slope area,gas-bearing universality,but local rich gas,and the gas water relationship is inverted;(7)abnormal pressure is widely distributed.Based on above geological characteristics,the author confirmed the main controlling factors of reservoir formation,and got the key evaluation parameters,then used these parameters to determine favorable exploration area by multiconditional analysis.Based on the actual data,the author optimized resource abundance analogy method,Monte Carlo stochastic simulation method and the rapid assessment method to estimate gas resources in favorable area,and the gas resources of tight sandstone in this area is about 1 68×108 m3.

Key words: Jungger Basin, Xinguang area, Jiamuhe Formation, Tight sandstone gas, Characteristics of gas reservoirs, Resource evaluation

中图分类号: 

  • TE122

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