Accumulation Mechanism and Enrichment Law of Tight Gas in Shengbei Structural Zone

doi:10.3969/j.issn.1006-6535.2022.05.003

Abstract

Abstract: The Shengbei structural zone has great potential for tight oil and gas resources, with many oil and gas-bearing formations, and industrial oil and gas have been obtained in several formations including the Middle Jurassic and Cretaceous, and the discovered oil and gas reservoirs are dense. In view of the low degree of research on the oil and gas filling mechanism in the process of oil and gas accumulation, the microscopic testing technology of reservoir fluid inclusions was adopted, combined with the simulation results of formation burial history, thermal evolution history and hydrocarbon source rock maturity history, to analyze the oil and gas filling time and accumulation period, and to study the accumulation mechanism and enrichment law. The results show that the Shengbei structural zone mainly has two oil and gas accumulation periods, namely Late Jurassic-Early Cretaceous and Neogene-Quaternary; the hydrocarbon source rocks of the Shuixigou Group have two times of hydrocarbon generation and expulsion, in the Late Jurassic-Early Cretaceous and Neogene, respectively. The hydrocarbon generation and expulsion period of lacustrine mudstone in Qiketai Formation was dominated by Neogene; the hydrocarbon accumulation was controlled by oil source faults, sand body connectivity and fault sealing. The hydrocarbon source rocks are developed in the northeastern part of the Shengbei Sag, the formation is overpressured, the deep and large faults are developed, and the sandstone reservoirs are superimposed and distributed in different strata, so this area is favorable for oil and gas exploration. The research results have guiding significance for the Middle Jurassic tight gas exploration in the Shengbei Sag, Turpan-Hami Basin.

Key words: Shengbei Sag, Shengbei structural zone, tight gas, inclusions, accumulation mechanism, enrichment factors

CLC Number:

TE122.2

Liu Juntian, Xie Dianhe, Peng Yazhong, Jin Jikun, Sun Yufeng, Li Xingliang. Accumulation Mechanism and Enrichment Law of Tight Gas in Shengbei Structural Zone[J]. Special Oil & Gas Reservoirs, 2022, 29(5): 18-27.

References

[1] 王劲松.巴喀气藏特征与吐哈盆地致密砂岩气勘探前景[J].石油天然气学报,2010,32(6):373-386.
WANG Jinsong.Characteristics of Baka Gas Reservoir and exploration prospect of tight sandstone gas in Turpan-Hami Basin[J].Journal of Oil and Gas Technology,2010,32(6):373-386.
[2] 俞益新,张金川,尹腾宇,等.吐哈盆地致密砂岩气成藏特征及模式[J].新疆石油地质,2012,33(3):283-287.
YU Yixin,ZHANG Jinchuan,YIN Tengyu,et al.Characteristic and model for tight sandstone gas accumulation in Tuha Basin[J].Xinjiang Petroleum Geology,2012,33(3):283-287.
[3] 翟亚梅,余水生,张志更,等.吐哈盆地胜北洼陷致密砂岩气勘探潜力与方向[J].新疆石油天然气,2012,8(4):7-11.
ZHAI Yamei,YU Shuisheng,ZHANG Zhigeng,et al.The exploration potential and direction of tight sandstone gas in Shengbei Sag of Tuha Basin[J].Xinjiang Oil & Gas,2012,8(4):7-11.
[4] 李延钧,陈义才,张艳云,等.吐哈盆地胜北凹陷浅层油气源与成藏研究[J].石油实验地质,2007,29(4):1-6.
LI Yanjun,CHEN Yicai,ZHANG Yanyun,et al.Research of the oil-gas source and formation of the pools in the shallow bed of the Shengbei Sag,the Tuha Basin[J].Petroleum Geology & Experiment,2007,29(4):1-6.
[5] 冯越,黄志龙,李天军,等.吐哈盆地胜北洼陷七克台组二段致密油成藏条件[J].岩性油气藏,2020,32(6):97-108.
FENG Yue,HUANG Zhilong,LI Tianjun,et al.Tight oil accumulation conditions of the second member of Qiketai Formation in Shengbei Sub-sag,Turpan-Hami Basin[J].Lithologic Reservoirs,2020,32(6):97-108.
[6] 肖冬生,陈旋,文川江,等.吐哈盆地台北凹陷胜北构造带油气成藏新认识[J].特种油气藏,2016,23(3):21-24.
XIAO Dongsheng,CHEN Xuan,WEN Chuanjiang,et al.New insights into hydrocarbon accumulation of Shengbei Structural Zone in Taibei Depression of Tuha Basin[J].Special Oil & Gas Reservoirs,2016,23(3):21-24.
[7] 柳波,黄志龙,王玫玫,等.吐哈盆地胜北构造带油气成藏过程[J].吉林大学学报(地球科学版),2011,41(4):1006-1012.
LIU Bo,HUANG Zhilong,WANG Meimei,et al.Restoration of hydrocarbon accumulation history in Shengbei Structure Belt,Tuha Basin[J].Journal of Jilin University (Earth Science Edition),2011,41(4):1006-1012.
[8] 朱有信,李新宁,蒲振山,等.吐哈盆地侏罗系七克台组致密油储集层特征[J].新疆石油地质,2014,35(2):168-171.
ZHU Youxin,LI Xinning,PU Zhenshan,et al.The Qiketai tight oil reservoir characteristics of Jurassic in Tuha Basin[J].Xinjiang Petroleum Geology,2014,35(2):168-171.
[9] 柳益群,刘斌,荐军.吐哈盆地二叠系—侏罗系流体包裹体研究[J].石油勘探与开发,2001,28(1):48-50.
LIU Yiqun,LIU Bin,JIAN Jun.A study on fluid inclusion of Permian-Jurassic in Turpan-Hami Basin[J].Petroleum Exploration and Development,2001,28(1):48-50.
[10] 倪培,范宏瑞,潘君屹,等.流体包裹体研究进展与展望(2011-2020)[J].矿物岩石地球化学通报,2021,40(4):802-818.
NI Pei,FAN Hongrui,PAN Junyi,et al.Progress and prospect of fluid inclusion research in the past decade in China(2011-2020)[J].Bulletin of Mineralogy,Petrology and Geochemistry,2021,40(4):802-818.
[11] 刘成川,王园园,赵爽,等.彭州气田雷口坡组流体包裹体特征及成藏期次[J].西安石油大学学报(自然科学版),2020,35(6):17-21.
LIU Chengchuan,WANG Yuanyuan,ZHAO Shuang,et al.Study on fluid inclusion characteristics and hydrocarbon accumulation periods of Leikoupo Formation in Pengzhou Gasfield[J].Journal of Xi′an Shiyou University(Natural Science Edition),2020,35(6):17-21.
[12] 李博,崔军平,李莹,等.伊陕斜坡吴起地区延长组油气成藏期次分析[J].岩性油气藏,2021,33(6):21-28.
LI Bo,CUI Junping,LI Ying,et al.Hydrocarbon accumulation phases of Yanchang Formation in Wuqi Area,Yishan Slope[J].Lithologic Reservoirs,2021,33(6):21-28.
[13] 刘可顺,丰勇,王斌,等.跃进地区一间房组流体包裹体特征及油气成藏期次[J].新疆地质,2020,38(2):217-221.
LIU Keshun,FENG Yong,WANG Bin,et al.Fluid inclusion characteristics and hydrocarbon accumulation stages of Yijianfang Formation in Yuejin Area[J].Xinjiang Geology,2020,38(2):217-221.
[14] 张育民.塔里木盆地卡塔克隆起斜坡区油气成藏期次研究[J].石油实验地质,2021,43(6):1015-1023.
ZHANG Yumin.Petroleum charge history of the slope area of Katake Uplift in Tarim Basin[J].Petroleum Geology & Experiment,2021,43(6):1015-1023.
[15] 韩强,云露,蒋华山,等.塔里木盆地顺北地区奥陶系油气充注过程分析[J].吉林大学学报(地球科学版),2021,51(3):645-658.
HAN Qiang,YUN Lu,JIANG Huashan,et al.Marine oil and gas filling and accumulation process in the north of Shuntuoguole Area in Northern Tarim Basin[J].Journal of Jilin University (Earth Science Edition),2021,51(3):645-658.
[16] 张大智,初丽兰,周翔,等. 松辽盆地北部徐家围子断陷沙河子组致密气储层成岩作用与成岩相特征[J]. 吉林大学学报(地球科学版), 2021, 51(1):22-34.
ZHANG Dazhi, CHU Lilan, ZHOU Xiang, et al. Diagenesis and diagenesis facies of tight gas reservoir of Shahezi Formation, in Xujiaweizi Fault Depression of north Songliao Basin[J]. Journal of Jilin University (Earth Science Edition), 2021, 51(1): 22-34.
[17] 周进松,乔向阳,王若谷,等 . 延安气田下二叠统山西组流体包裹体特征及其地质意义[J]. 天然气工业, 2020, 40(4): 20-29.
ZHOU Jinsong, QIAO Xiangyang, WANG Ruogu, et al. Characteristics and geological significance of fluid inclusions in the Lower Permian Shanxi Formation in the Yan′an Gasfield[J]. Natural Gas Industry, 2020, 40(4): 20-29.
[18] 单云鹏,王红军,张良杰,等. 土库曼斯坦阿姆河右岸卡洛夫-牛津阶储层流体包裹体特征及成藏期[J]. 东北石油大学学报,2020,44(3):14-25.
SHAN Yunpeng, WANG Hongjun, ZHANG Liangjie, et al. Fluid inclusion characteristics and hydrocarbon accumulation period of Callovian-Oxfordian reservoir on the right bank of Amu Darya, Turkmenistan[J].Journal of Northeast Petroleum University,2020,44(3):14-25.
[19] 刘安,周鹏,陈孝红,等. 运用方解石脉包裹体和碳氧同位素评价页岩气保存条件——以中扬子地区寒武系为例[J]. 天然气工业, 2021, 41(2): 47-55.
LIU An, ZHOU Peng, CHEN Xiaohong, et al. Evaluation of shale gas preservation conditions using calcite vein inclusions and C/O isotopes: a case study on the Cambrian strata of Middle Yangtze Area[J]. Natural Gas Industry, 2021, 41(2): 47-55.
[20] 刘晓强,孙海,吕爱民,等. 考虑压裂液返排的致密气藏气水两相产能分析[J]. 东北石油大学学报,2020,44(2):103-112.
LIU Xiaoqiang, SUN Hai, LYU Aimin, et al. Gas-water two phased productivity analysis of tight gas reservoir based on fracturing fluid flowback data[J]. Journal of Northeast Petroleum University,2020,44(2):103-112.
[21] 徐佑德,王林,刘子超,等.车排子地区火山岩油藏流体包裹体特征与成藏期次[J].断块油气田,2020,27(5):545-550.
XU Youde,WANG Lin,LIU Zichao,et al.Characteristics of fluid inclusions and time frame of hydrocarbon accumulation for volcanic reservoirs in Chepaizi Uplift[J].Fault-Block Oil & Gas Field,2020,27(5):545-550.
[22] 傅建斌.考虑多因素影响的致密气藏压裂井产能预测方法[J].断块油气田,2021,28(2):156-161.
FU Jianbin.Productivity prediction method of fractured wells in tight gas reservoir considering multi factors[J].Fault-Block Oil & Gas Field,2021,28(2):156-161.
[23] 魏赫鑫,赖枫鹏,蒋志宇,等.延长致密气储层微观孔隙结构及流体分布特征[J].断块油气田,2020,27(2):182-187.
WEI Hexin,LAI Fengpeng,JIANG Zhiyu,et al.Micropore structure and fluid distribution characteristics of Yanchang tight gas reservoir[J].Fault-Block Oil & Gas Field,2020,27(2):182-187.