开鲁盆地陆东凹陷碎屑岩成藏规律

doi:10.3969/j.issn.1006-6535.2022.05.009

摘要/Abstract

摘要： 针对开鲁盆地陆东凹陷碎屑岩储层油藏富集规律认识不清的问题,在精细构造解释的基础上,通过开展沉积演化、储层特征及孔隙演化研究,探讨了碎屑岩成藏规律。结果表明:断陷盆地的不均衡发育,使得油气大多聚集于临近生烃洼陷有利相带内;陆东凹陷碎屑岩储层平均孔隙半径为4.57～9.56 μm,平均喉道半径为3.02～8.33 μm,整体渗流能力不佳,油气难以长距离运移,具有近源性和准连续性。在碎屑岩沉积、成储、成藏研究基础上,建立了陆东凹陷油气成藏模式。该研究成果为陆东凹陷低渗透油气藏勘探奠定一定的理论基础,对同类油藏的油气勘探具有重要指导意义。

关键词: 演化特征, 碎屑岩, 近源成藏, 富集规律, 陆东凹陷, 开鲁盆地

Abstract: In response to the problem of poor understanding of the accumulation law of clastic rock reservoirs in Ludong Sag of Kailu Basin, the accumulation of clastic rock was explored through the study of sedimentary evolution, reservoir characteristics and pore evolution on the basis of fine tectonic interpretation. The result shows: The uneven development of faulted basins makes most of the oil and gas accumulate in favorable facies zones adjacent to hydrocarbon-generating sags; the clastic rock reservoirs in Ludong Sag has an average pore radius of 4.57-9.56 μm and average throat radius of 3.02-8.33 μm, so it is poor in overall seepage ability, causing difficulties for oil and gas to migrate over long distances, and it is close-sourced and quasi-continuous. Based on the study of clastic sedimentation, reservoir formation and accumulation, the oil and gas accumulation model of Ludong Sag was established. The research results lay a certain theoretical foundation for the exploration of low-permeability oil and gas reservoirs in the Ludong Sag, and have important guiding significance for the oil and gas exploration of similar oil reservoirs.

Key words: evolution characteristics, clastic rocks, near-source accumulation, enrichment law, Ludong Sag, Kailu Basin

中图分类号:

TE121

张瑞雪. 开鲁盆地陆东凹陷碎屑岩成藏规律[J]. 特种油气藏, 2022, 29(5): 66-71.

Zhang Ruixue. Accumulation Regularity of Clastic Rocks in Ludong Sag of Kailu Basin[J]. Special Oil & Gas Reservoirs, 2022, 29(5): 66-71.

参考文献

[1] 胡宗全,尹伟,伍新和,等.中国中西部四大盆地碎屑岩油气成藏体系及其分布规律[J].石油与天然气地质,2012,33(4):561-570.
HU Zongquan,YIN Wei,WU Xinhe,et al.Petroleum accumulation systems of clastic strata and their distribution in the four large-sized basins in central-western China[J].Oil & Gas Geology,2012,33(4):561-570.
[2] 刘明洁,谢庆宾,谭欣雨,等.内蒙古开鲁盆地陆东凹陷九佛堂组层序地层格架与岩性圈闭[J].沉积与特提斯地质,2014,34(3):31-37.
LIU Mingjie,XIE Qingbin,TAN Xinyu,et al.Sequence stratigraphic framework and lithologic traps in the Jiufotang Formation,Ludong Sag,Kailu Basin,Inner Mongolia[J].Sedimentary Geology and Tethyan Geology,2014,34(3):31-37.
[3] 荐鹏,雷霄雨.陆东凹陷九佛堂组火山碎屑岩地层对比与划分[J].沉积与特提斯地质,2016,36(4):44-46.
JIAN Peng,LEI Xiaoyu.Stratigraphic division and correlation of the volcaniclastic rocks from the Jiufotang Formation in the Ludong Sag,Liaoning[J].Sedimentary Geology and Tethyan Geology,2016,36(4):44-46.
[4] 王延山,董崟昊,陈乃申,等.陆东凹陷致密油形成条件及资源潜力探讨[J].特种油气藏,2014,21(4):53-58.
WANG Yanshan,DONG Yinhao,CHEN Naishen,et al.Forming conditions and potential of tight oil in Ludong Sag[J].Special Oil & Gas Reservoirs,2014,21(4):53-58.
[5] 郭鹏超.陆东凹陷九佛堂组火山岩屑砂岩储层影响因素分析[J].石油天近然气学报,2020,42(2):107-115.
GUO Pengchao.Analysis of influencing factors of reservoir with high-quality volcanic lithic sandstone in Jiufotang Formation in Luxi Sag[J].Journal of Oil and Gas Technology,2020,42(2):107-115.
[6] 王祁军,昝国军,方炳钟,等.开鲁盆地陆西凹陷九佛堂组油气成藏特征及分布[J].石油实验地质,2007,29(4):373-376.
WANG Qijun,ZAN Guojun,FANG Bingzhong,et al.Accumulation characteristics and petroleum distribution in Jiufotang Formation,Luxi Sag,Kailu Basin[J].Petroleum Geology & Experiment,2007,29(4):373-376.
[7] 杨江.彰武盆地构造特征及油气勘探潜力研究[D].西安:长安大学,2008.
YANG Jiang.Research on structural characteristics and oil and gas exploration potential of Zhangwu Basin[D].Xi′an:Chang′an University,2008.
[8] 李世波.复杂断块天然气藏成藏及勘探分析[J].内蒙古石油化工,2011,35(1):6-10.
LI Shibo.Accumulation and exploration analysis of complex fault-block natural gas reservoirs[J].Inner Mongolia Petrochemical Industry,2011,35(1):6-10.
[9] 吴亚生,钟大康,邱楠生.松南地区下白垩统九佛堂组沉积相特征[J].石油天然气学报,2011,33(10):30-33.
WU Yasheng,ZHONG Dakang,QIU Nansheng.Characteristics of sedimentary facies in Cretaceous Jiufotang Formation in Songnan Area[J].Journal of Oil and Gas Technology,2011,33(10):30-33.
[10] 鲁红利.残留叠合型小断陷盆地油气成藏特征研究[J].西部探矿工程,2013,35(3):41-42.
LU Hongli.Research on the characteristics of hydrocarbon accumulation in residual superimposed small faulted basins[J].West-china Exploration Engineering,2013,35(3):41-42.
[11] 袁海莉,武富礼,邢星,等.鄂尔多斯盆地陕北地区山西组沉积特征[J].中国石油和化工标准与质量,2011,23(11):184-185.
YUAN Haili,WU Fuli,XING Xing,et al.Sedimentary characteristics of Shanxi Formation in northern Shaanxi,Ordos Basin[J].China Petroleum and Chemical Standard and Quality,2011,23(11):184-185.
[12] 尚金泉.直罗油田北部延安组储层特征研究[D].西安:西安石油大学,2012.
SHANG Jinquan.Research on reservoir characteristics of Yan′an Formation in the north of Zhiluo Oilfield[D].Xi′an:Xi′an Petroleum University,2012.
[13] 裴家学.辽河外围盆地岩性油藏形成条件及识别[J].特种油气藏,2015,22(4):62-65.
PEI Jiaxue.Forming conditions and identification of lithologic reservoirs in peripheral basin,Liaohe Oilfield[J].Special Oil & Gas Reservoirs,2015,22(4):62-65.

[1]	杨浩, 阳波, 石伟, 林丽, 方燕, 朱玉双. 鄂尔多斯盆地华庆地区长9油藏富集特征及潜力区预测[J]. 特种油气藏, 2023, 30(2): 78-85.
[2]	邱文波, 蔡秦秦, 张雪锐, 蒋少龙, 郭龙, 袁子琦. 二连盆地大庙凹陷油气富集规律及有利目标优选[J]. 特种油气藏, 2023, 30(1): 50-56.
[3]	刘峻杰, 吴建军, 熊健, 李兵, 刘向君, 梁利喜. 海陆过渡相不同页岩岩相的岩石力学特性及能量演化特征[J]. 特种油气藏, 2022, 29(6): 83-90.
[4]	武瑾, 李玮, 刘鑫, 徐浩, 邓乃尔, 任梓赫, 刘桂莹. 四川盆地海相页岩气碳同位素特征及指示意义[J]. 特种油气藏, 2022, 29(5): 36-41.
[5]	李永会, 刘刚, 高亮, 向娟, 宋海强, 胡元伟, 王青. 基于岩石热解资料的烃源岩有机碳构成计算方法及应用[J]. 特种油气藏, 2022, 29(2): 51-56.
[6]	李浩. 鄂尔多斯盆地古生界气藏成藏模式及优势储层预测[J]. 特种油气藏, 2022, 29(2): 57-63.
[7]	张辉. 超深裂缝性碎屑岩储层天然裂缝激活研究[J]. 特种油气藏, 2021, 28(2): 133-138.
[8]	张宇焜, 杨烁, 郭晓, 王帅, 王晖, 宋来明. 东西伯利亚地台文德系海陆过渡相沉积特征及开发潜力[J]. 特种油气藏, 2020, 27(5): 14-21.
[9]	胡林, 金秋月, 杨希冰, 胡德胜, 卢梅. 乌石凹陷东区构造演化特征及中浅层油气富集规律研究[J]. 特种油气藏, 2020, 27(5): 68-73.
[10]	李晓慧. 主流线叠合法在分流河道演化特征分析中的应用 [J]. 特种油气藏, 2020, 27(2): 22-29.
[11]	陈涛. 地表风化在地层油藏碎屑岩储层中的作用[J]. 特种油气藏, 2018, 25(2): 1-.
[12]	王粤川，韦阿娟，郭颖，吴庆勋，李飞. 渤海海域中侏罗统煤系碎屑岩储层主控因素[J]. 特种油气藏, 2017, 24(6): 33-38.
[13]	孟涛，郭峰，穆星，邱隆伟，李博. 济阳坳陷东部中生界二次埋藏型储层成岩作用[J]. 特种油气藏, 2016, 23(6): 16-.
[14]	张波. 阳信洼陷沙一段页岩气富集规律[J]. 特种油气藏, 2016, 23(2): 9-.
[15]	程岳宏，赵厚祥，于水，赵汝敏，周浩玮. 缅甸Shwrbo次盆岛弧带储层特征与主控因素分析[J]. 特种油气藏, 2016, 23(1): 72-.