“T/C-P不整合双地层结构”的压实—离心流渗滤作用与油气富集——以准噶尔盆地玛东斜坡区三叠系百口泉组为例

doi:10.13810/j.cnki.issn.1000-7210.2023.04.023

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摘要为探讨大气淡水对不整合面上覆地层的渗滤效应，利用地震-地质综合剖面、储层物性、油-水等流体地球化学参数及试油、试采等资料，综合分析与不整合面有关的地层结构及压实-离心流分布特征，揭示了在“T/C-P不整合双地层结构”控制下，大气淡水通过压实-离心流方式对T/P不整合面上覆地层进行垂向渗滤，导致玛东斜坡区三叠系百口泉组油气充注程度较低。结果表明：玛东斜坡区T/P不整合面之上的百口泉组压实-离心流渗滤带的流体势方向与重力势方向相反，其成因与百口泉组底部富泥砂砾岩岩相及伴生的润湿水相的毛细管自吸作用密切相关；大气淡水主要沿着T/P不整合面之上百口泉组富泥砂砾岩内部的微细孔喉向上渗滤，形成自下而上流动的压实-离心流；压实-离心流垂向渗滤深度约为45 m，平面延伸距离约为28 km；压实-离心流的逆重力势方向流动特征导致百口泉组油气充注程度整体较低，油气主要富集于砂层组中上部物性较优的贫泥砂砾岩储层中。最后，“根据T/C-P不整合双地层结构”的压实-离心流渗滤作用与油气富集特征确定百口泉组油层测井定量识别标准为lgRT>1.4 Ω·m（电阻率RT>25 Ω·m）、纵波阻抗IMP<9000 g·cm^-3·m·s^-1；利用RT-IMP联合约束油层定量预测图板预测了夏子街扇东翼（面积为98 km²）、玛东盐北扇（面积为104 km²）两个油气富集区。

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	孟祥超
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关键词 ：准噶尔盆地, 玛东斜坡区, 百口泉组(T₁b), T/P不整合面, T/C不整合面, 压实-离心流, 重力-向心流, 毛细管自吸作用

Abstract：To discuss the percolation effect of atmospheric fresh water on overlying strata above the unconformable surface, this paper uses data such as seismic-geology comprehensive profile, reservoir physical property, fluid(oil and water) geochemical parameters, formation testing, and pilot production to comprehensive analyze the stratum structure and compaction-centrifugal flow distribution characteristics related to the unconformable surface. It reveals that under the control of the T/C-P unconformable double stratigraphic structure, the vertical percolation of atmospheric fresh water to the overlying strata above the T/P unconformable surface by compaction-centrifugal flow leads to the low oil & gas charging degree of Triassic Baikouquan(T₁b) Formation in Madong slope area. The results show that the direction of the fluid potential in the compaction-centrifugal flow percolation zone of T₁b Formation above the T/P unconformable surface in the Madong slope area is opposite to that of the gravity potential, which is closely related to the capillary self-imbibition of the mud-rich conglomerate facies at the bottom of T₁b Formation and the associated wetting water phase. The atmospheric fresh water percolates upward mainly along the micro-pore throat in the mud-rich conglomerate of the T₁b Formation above the T/P unconformable surface, forming a bottom-up compactioncentrifugal flow. The vertical percolation depth of compaction-centrifugal flow is about 45 m, and the plane extension distance is about 28 km. The compaction-centrifugal flow against gravity potential leads to a low degree of oil & gas charging in the T₁b Formation, and oil & gas mainly accumulate in the mud-poor conglomerate reservoir with excellent physical properties in the middle and upper part of the sand formation. According to compaction-centrifugal flow percolation and hydrocarbon enrichment characteristics of T/C-P unconformable double stratigraphic structure, logging quantitative identification criteria of the T₁b Formation reservoir are lgRT > 1.4 Ω·m(RT > 25 Ω·m) and IMP < 9000 g·cm^-3·m·s^-1. The RT-IMP joint-constrained oil reservoir quantitative prediction map is used to predict two oil and gas enrichment areas, namely the east wing of Xiazijie Fan(with an area of 98 km²) and the north wing of Madong-Xiayan Fan(with an area of 104 km²).

Key words： Junggar Basin Madong slope area Baikouquan(T₁b) Formation T/P unconformable surface T/C unconformable surface compaction-centrifugal flow gravity-centripetal flow capillary self-imbibition

收稿日期: 2022-12-01

PACS:

P631

基金资助:本项研究受国家科技重大专项“大型岩性油气藏形成主控因素与有利区带评价”（2017ZX05001-002）和中国石油科技部重大专项“深层超深层有效储层形成主控因素与预测技术研究”（2021DJ0202）、“多类型储集体发育机制与储集能力定量评价技术研究”（2021DJ0402）联合资助。

通讯作者: 孟祥超,浙江省杭州市西湖区西溪路920号中国石油杭州地质研究院,310023。Email:mengxc_hz@petrochina.com.cn E-mail: mengxc_hz@petrochina.com.cn

作者简介: 孟祥超高级工程师,1974年生;1998年获成都理工学院石油地质专业学士学位,2007年获中国石油大学(北京)矿产普查与勘探专业硕士学位;现就职于中国石油杭州地质研究院,主要从事碎屑岩沉积储层及油气综合评价研究。

引用本文:

孟祥超, 齐洪岩, 陈扬, 窦洋, 郭华军, 彭博. “T/C-P不整合双地层结构”的压实—离心流渗滤作用与油气富集——以准噶尔盆地玛东斜坡区三叠系百口泉组为例[J]. 石油地球物理勘探, 2023, 58(4): 970-982. MENG Xiangchao, QI Hongyan, CHEN Yang, DOU Yang, GUO Huajun, PENG Bo. Compaction-centrifugal flow percolation and hydrocarbon enrichment of T/C-P unconformable double stratigraphic structure: A case study of Triassic T₁b Formation in Madong slope area, Junggar Basin. Oil Geophysical Prospecting, 2023, 58(4): 970-982.

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http://www.ogp-cn.com/CN/10.13810/j.cnki.issn.1000-7210.2023.04.023 或 http://www.ogp-cn.com/CN/Y2023/V58/I4/970

[1]	何登发. 不整合面的结构与油气聚集[J]. 石油勘探与开发, 2007, 34(2):142-149, 201.HE Dengfa. Structure of unconformity and its control on hydrocarbon accumulation[J]. Petroleum Exploration and Development, 2007, 34(2):142-149, 201.
[2]	何登发. "下削上超"地层不整合的基本类型与地质意义[J]. 石油勘探与开发, 2018, 45(6):995-1006.HE Dengfa. Basic types and geologic significances of "truncation and onlap" unconformities[J]. Petroleum Exploration and Development, 2018, 45(6):995-1006.
[3]	陈发景, 张光亚, 陈昭年. 不整合分析及其在陆相盆地构造研究中的意义[J]. 现代地质, 2004, 18(3):269-275.CHEN Fajing, ZHANG Guangya, CHEN Zhaonian. Unconformity analysis and its significance in the study of continental basin tectonics[J]. Geoscience, 2004, 18(3):269-275.
[4]	韩宝, 王昌伟, 盛世锋, 等. 准噶尔盆地中拐-五区二叠系不整合面对油气成藏控制作用[J]. 天然气地球科学, 2017, 28(12):1821-1828.HAN Bao, WANG Changwei, SHENG Shifeng, et al. Controls of the permian unconformity on reservoir formation in Zhongguai-District 5 area of Junggar Basin[J]. Natural Gas Geoscience, 2017, 28(12):1821-1828.
[5]	李攀, 李永强, 经俭波, 等. 准噶尔盆地西北部P-T转换期不整合的发育演化特征及意义[J]. 古地理学报, 2020, 22(4):697-714.LI Pan, LI Yongqiang, JING Jianbo, et al. Unconformities formed during the P-T transition in the northwestern Junggar Basin:Nature, evolution and implications[J]. Journal of Palaeogeography, 2020, 22(4):697-714.
[6]	王小军, 宋永, 郑孟林, 等. 准噶尔盆地复合含油气系统与复式聚集成藏[J]. 中国石油勘探, 2021, 26(4):29-43.WANG Xiaojun, SONG Yong, ZHENG Menglin, et al. Composite petroleum system and multi-stage hydrocarbon accumulation in Junggar Basin[J]. China Petroleum Exploration, 2021, 26(4):29-43.
[7]	孟祥超, 王小军, 陈扬, 等. 玛湖凹陷斜坡区KE89-MAh9古鼻凸的发现及油气勘探意义[J]. 石油地球物理勘探, 2019, 54(1):217-228.MENG Xiangchao, WANG Xiaojun, CHEN Yang, et al. KE89-MAh9 paleo-salient discovery in the slope of Mahu Sag and its hydrocarbon exploration significance[J]. Oil Geophysical Prospecting, 2019, 54(1):217-228.
[8]	唐勇, 纪杰, 郭文建, 等. 准噶尔盆地阜康凹陷东部中/上二叠统不整合结构特征及控藏作用[J]. 石油地球物理勘探, 2022, 57(5):1138-1147.TANG Yong, JI Jie, GUO Wenjian, et al. Characteristics and reservoir-control effect of Upper/Middle Permian unconformity structures in the east of Fukang Sag, Junggar Basin[J]. Oil Geophysical Prospecting, 2022, 57(5):1138-1147.
[9]	孟祥超, 齐洪岩, 陈扬, 等. 低GR风化古土壤-高GR砂砾岩成因与油气勘探——以玛南地区二叠系上乌尔禾组P3w为例[J]. 中国矿业大学学报, 2021, 50(6):1153-1168.MENG Xiangchao, QI Hongyan, CHEN Yang, et al. Genesis of low GR weathering paleosols and high GR glutenite and oil & gas exploration:a case study of the Upper Permian Wuerhe Formation in Manan area[J]. Journal of China University of Mining & Technology, 2021, 50(6):1153-1168.
[10]	吴孔友, 查明. 多期叠合盆地成藏动力学系统及其控藏作用——以准噶尔盆地为例[M]. 山东东营:中国石油大学出版社, 2010.WU Kongyou, ZHA Ming. The Dynamic System and Its Controlling Role in the Multistage Lamination Basin:Taking the Junggar Basin for Example[M]. China University of Petroleum Press, Dongying, Shandong, 2010.
[11]	何登发, 陈新发, 张义杰, 等. 准噶尔盆地油气富集规律[J]. 石油学报, 2004, 25(3):1-10.HE Dengfa, CHEN Xinfa, ZHANG Yijie, et al. Enrichment characteristics of oil and gas in Jungar Basin[J]. Acta Petrolei Sinica, 2004, 25(3):1-10.
[12]	陈中红, 查明. 盆地流体与油气成藏[M]. 北京:科学出版社, 2013.CHEN Zhonghong, ZHA Ming. Basin Fluid and Hydrocarbon Accumulation[M]. Science Press, Beijing, 2013.
[13]	楼章华, 程军蕊, 金爱民. 沉积盆地地下水动力场特征研究——以松辽盆地为例[J]. 沉积学报, 2006, 24(2):193-201.LOU Zhanghua, CHENG Junrui, JIN Aimin. Origin and evolution of the hydrodynamics in sedimentary basin:a case study of the Songliao Basin[J]. Acta Sedimentologica Sinica, 2006, 24(2):193-201.
[14]	谭开俊, 张帆, 尹路, 等. 准噶尔盆地乌夏地区地层水与油气保存条件[J]. 石油实验地质, 2012, 34(1):36-39.TAN Kaijun, ZHANG Fan, YIN Lu, et al. Preservation conditions for formation water and hydrocarbon in Wuxia area, Junggar Basin[J]. Petroleum Geology and Experiment, 2012, 34(1):36-39.
[15]	杨绪充. 论含油气盆地的地下水动力环境[J]. 石油学报, 1989, 10(4):27-34.YANG Xuchong. On the underground hydrodynamic environment in an oil and gas basin[J]. Acta Petrolei Sinica, 1989, 10(4):27-34.
[16]	寿建峰, 张惠良, 斯春松, 等. 砂岩动力成岩作用[M]. 北京:石油工业出版社, 2005.SHOU Jianfeng, ZHANG Huiliang, SI Chunsong, et al. Dynamic Diagenesis of Sandstone[M]. Petroleum Industry Press, Beijing, 2005.
[17]	孟祥超, 陈能贵, 苏静, 等. 砂砾岩体不同岩相油气充注期储集性能差异及成藏意义——以玛湖凹陷西斜坡区百口泉组油藏为例[J]. 沉积学报, 2016, 34(3):606-614.MENG Xiangchao, CHEN Nenggui, SU Jing, et al. Reservoir property diversity of different lithofacies in sandy conglomerate during oil-gas injection period and reservoir-formation significance:a case from Baikouquan Formation in west slope of Mahu Depression, Junggar Basin[J]. Acta Sedimentologica Sinica, 2016, 34(3):606-614.
[18]	孟祥超, 陈能贵, 王海明, 等. 砂砾岩沉积特征分析及有利储集相带确定——以玛北斜坡区百口泉组为例[J]. 沉积学报, 2015, 33(6):1235-1246.MENG Xiangchao, CHEN Nenggui, WANG Haiming, et al. Sedimentary characteristics of glutenite and its favourable accumulation facies:a case study from T1b, Mabei slope, Junggar Basin[J]. Acta Sedimentologica Sinica, 2015, 33(6):1235-1246.
[19]	游利军, 康毅力. 油气储层岩石毛细管自吸研究进展[J]. 西南石油大学学报(自然科学版), 2009, 31(4):112-116.YOU Lijun, KANG Yili. Progress in research on spontaneous capillary imbibition of oil and gas reservoir rocks[J]. Journal of Southwest Petroleum University (Science & Technology Edition), 2009, 31(4):112-116.
[20]	向才富, 王绪龙, 魏立春, 等. 准噶尔盆地克拉美丽气田天然气成因与运聚路径[J]. 天然气地球科学, 2016, 27(2):268-277.XIANG Caifu, WANG Xulong, WEI Lichun, et al. Origins of the natural gas and its migration and accumulation pathways in the Kelameili Gasfield[J]. Natural Gas Geoscience, 2016, 27(2):268-277.
[21]	刘诗琼, 刘向君, 孙杨沙, 等. 考虑孔隙结构的砾岩储层物性分类评价方法[J]. 石油地球物理勘探, 2022, 57(4):926-936.LIU Shiqiong, LIU Xiangjun, SUN Yangsha, et al. Physical property classification and evaluation method based on the pore structure for conglomerate reservoirs[J]. Oil Geophysical Prospecting, 2022, 57(4):926-936.
[22]	范廷恩, 张晶玉, 王海峰, 等. 砂岩储层横向不连续性检测技术组合及应用[J]. 石油地球物理勘探, 2021, 56(1):155-163.FAN Ting'en, ZHANG Jingyu, WANG Haifeng, et al. Combination and application of detecting technology for lateral discontinuity of sandstone reservoir[J]. Oil Geophysical Prospecting, 2021, 56(1):155-163.
[23]	黄饶, 侯昕晔, 牛聪, 等. 钙质砂岩强轴影响下的深水扇储层预测技术[J]. 石油地球物理勘探, 2023, 58(1):170-177.HUANG Rao, HOU Xinye, NIU Cong, et al. Deep-water fan reservoir prediction technology under the influence of strong amplitude of calcareous sandstone[J]. Oil Geophysical Prospecting, 2023, 58(1):170-177.