石油勘探与开发 >

2017 , Vol. 44 >Issue 2: 235 - 242

DOI: https://doi.org/10.11698/PED.2017.02.07

油气勘探

松辽盆地长岭断陷不同次级构造带致密砂岩气形成过程差异

  • 刘明洁 ,
  • 刘震 ,
  • 伍耀文 ,
  • 朱文奇 ,
  • 王鹏
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  • 1. 西南石油大学地球科学与技术学院,成都 610500;
    2. 中国石油大学（北京）油气资源与探测国家重点实验室,北京 102249;
    3. 中国石油东方地球物理公司研究院长庆分院,西安 710021
刘明洁（1985-）,男,湖北荆门人,博士,西南石油大学地球科学与技术学院讲师,主要从事致密砂岩油气藏及岩性油气藏的研究工作。地址：四川省成都市新都区新都大道8号,西南石油大学明辨楼B418室,邮政编码：610500。E-mail：liumingjieldd@163.com

收稿日期: 2016-03-13

  修回日期: 2016-12-19

  网络出版日期: 2017-05-22

基金资助

国家自然科学基金项目（41502147；41672124）；四川省教育厅项目（16ZA0072）；中国石油“十二五”油气重大专项（2011ZX05001）；西南石油大学青年教师“过学术关”项目（201499010089）

收起

Differences in formation process of tight sandstone gas reservoirs in different substructures in Changling Fault Depression, Songliao Basin, NE China

  • LIU Mingjie ,
  • LIU Zhen ,
  • WU Yaowen ,
  • ZHU Wenqi ,
  • WANG Peng
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  • 1. School of Geoscience and Technology, Southwest Petroleum University, Chengdu 610500, China;
    2. State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China;
    3. Changqing Branch of Geophysical Research Institute, BGP Inc., CNPC, Xi’an 710021, China

Received date: 2016-03-13

  Revised date: 2016-12-19

  Online published: 2017-05-22

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摘要

以松辽盆地长岭断陷下白垩统登娄库组致密砂岩气为研究对象，基于致密砂岩气基本特征，对中央深凹带、东部斜坡带和东部构造带典型致密砂岩气地层埋藏史、烃源岩热演化及生烃史、成藏期次和储集层孔隙度演化史4个方面进行精细动态解剖，明确了长岭断陷不同次级构造带致密砂岩气形成过程及差异，并探讨了不同次级构造带源储耦合关系，进而指出有利勘探区带。长岭断陷东部构造带烃源岩质量和储集层物性最好，且登娄库组致密砂岩成藏时间最早，表现为一期成藏，成藏时储集层未致密；东部斜坡带成藏时间较晚，表现为一期成藏且具有两次充注峰期，第1次充注峰期时储集层未致密，第2次充注峰期时储集层已致密；中央深凹带成藏时间最晚，表现为一期成藏，成藏时储集层已致密。研究表明东部构造带源储耦合关系最好，是该区致密砂岩气最有利勘探区带。 图7表1参26

关键词： 次级构造带; 致密砂岩气; 形成过程; 下白垩统登娄库组; 长岭断陷; 松辽盆地

本文引用格式

刘明洁 , 刘震 , 伍耀文 , 朱文奇 , 王鹏 . 松辽盆地长岭断陷不同次级构造带致密砂岩气形成过程差异[J]. 石油勘探与开发, 2017 , 44(2) : 235 -242 . DOI: 10.11698/PED.2017.02.07

Abstract

The tight sands reservoirs in the Lower Cretaceous Denglouku Formation in Changling Fault Depression of Songliao Basin, NE China were taken as study object. The burial history, thermal evolution history and hydrocarbon generation history of source rock, accumulation stage and porosity evolution history of typical tight sandstone reservoirs in the central deep depression belt, east slope belt and east structural belt were examined by the dissection based on the fundamental features of tight sandstone gas reservoirs, to find out the differences in their formation process, the coupling relationship between source and reservoir of different substructures, then the favorable exploration areas can be confirmed. The east structural belt has the best source rocks and reservoirs, where the Denglouku Formation tight sandstone formed reservoirs earliest when the reservoirs were not tightened yet with features of one stage accumulation. The sandstone of the Denglouku Formation in the east slope belt formed reservoirs secondly and shows one stage accumulation but two charging peaks, the first charging peak occurred when the reservoirs were not tightened, the second charging peak occurred when the sandstone was tightened already. The sandstone of the Denglouku Formation in central deep depression belt formed reservoir the latest when the reservoirs were densified already with the features of one stage accumulation. The study shows that the east structural belt has the best coupling relationship between source rocks and reservoirs, and is the most favorable exploration area for tight gas in the Changling Fault Depression.

Key words： substructural belt; tight sandstone gas reservoir; formation process; Lower Cretaceous Denglouku Formation; Changling Fault Depression; Songliao Basin

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