Diagenesis of Carboniferous volcanic rocks in Wulungu area and its implications for the volcanic reservoir development

doi:10.13745/j.esf.sf.2022.2.65

Abstract

Abstract:

The Carboniferous of the Junggar Basin has broad prospects for oil and gas exploration, but the exploration result has not been ideal. Through core observation, thin section identification as well as cathodoluminescence spectroscopy, scanning electron microscope and micron CT investigations, this paper focuses on the diagenesis of volcanic reservoir in the Wulungu area, Junggar Basin and its implications for the volcanic reservoir development. Our study shows that the diagenetic process in the study area can be divided into four stages—condensation consolidation, post magmatic hydrothermal, weathering denudation-leaching and burial stages, involving six main processes—condensation consolidation, compaction, dissolution, filling cementation, alteration and metasomatism. Condensation consolidation and dissolution can form primary and dissolution pores and dissolution fractures, playing a key role in improving reservoir quality. Compaction, filling cementation, alteration and metasomatism, on the other hand, greatly reduce primary reservoir space. Quantitative micron CT analysis and logging interpretation results show that the reservoir quality of the Upper Carboniferous is slightly better than that of the Lower Carboniferous, but they all show strong heterogeneity.

Key words: Junggar Basin, Wulungu area, volcanic rock reservoir, diagenesis, diagenetic stage

CLC Number:

GU Wenlong, NIU Huapeng, ZHANG Guanlong, WANG Shengzhu, YU Hongzhou, JIAO Xiaoqin, XIONG Zhengrong, ZHOU Jian. Diagenesis of Carboniferous volcanic rocks in Wulungu area and its implications for the volcanic reservoir development[J]. Earth Science Frontiers, 2023, 30(2): 296-305.

Figures/Tables 6

Fig.1 Structural map and location of the study area. Modified after [17].

Fig.2 Thin sections and core of main types of volcanic rocks developed in Wulungu area

Fig.3 Main types of volcanic reservoir space in Wulungu area

Fig.4 3D reconstruction by micron CT and volume distribution characteristics of pore-throat radius

Fig.5 Diagenetic evolution of Carboniferous volcanic reservoir in Wulungu area

Fig.6 Thin sections showing diagenesis of volcanic reservoir in Wulungu area

References 34

[1]	张子枢, 吴邦辉. 国内外火山岩油气藏研究现状及勘探技术调研[J]. 天然气勘探与开发, 1994, 17(1): 1-26.
[2]	王洛, 李江海, 师永民, 等. 全球火山岩油气藏研究的历程与展望[J]. 中国地质, 2015, 42(5): 1610-1620.
[3]	SRUOGA P, RUBINSTEIN N. Processes controlling porosity and permeability in volcanic reservoirs from the Austral and Neuquén basins, Argentina[J]. AAPG Bulletin, 2007, 91(1): 115-129. DOI URL
[4]	SCHUTTER S R. Occurrences of hydrocarbons in and around igneous rocks[J]. Geological Society, London, Special Publications, 2003, 214(1): 35-68. DOI URL
[5]	UKAI M, KATAHIRA T, KUME Y, et al. Volcanic reservoirs, their characteristics of the development and production[C]// Joint AIME-MMIJ Meeting. All Days. Tokyo: Joint Aime-mmij Meeting, 1972, SPE( 4296): 1-16.
[6]	冯志强, 金成志, 梁江平, 等. 大庆油田勘探技术现状及发展方向[J]. 中国工程科学, 2010, 12(5): 58-63.
[7]	匡立春, 吕焕通, 王绪龙, 等. 准噶尔盆地天然气勘探实践与克拉美丽气田的发现[J]. 天然气工业, 2010, 30(2): 1-6, 133.
[8]	罗静兰, 邵红梅, 张成立. 火山岩油气藏研究方法与勘探技术综述[J]. 石油学报, 2003, 24(1): 31-38. DOI
[9]	张萌, 林会喜. 春晖油田石炭系火成岩储层特征及形成机理[J]. 特种油气藏, 2016, 23(5): 52-55, 153.
[10]	何登发, 陈新发, 况军, 等. 准噶尔盆地石炭系油气成藏组合特征及勘探前景[J]. 石油学报, 2010, 31(1): 1-11.
[11]	赵白. 准噶尔盆地的构造特征与构造划分[J]. 新疆石油地质, 1993, 14(3): 209-216.
[12]	蔡忠贤, 陈发景, 贾振远. 准噶尔盆地的类型和构造演化[J]. 地学前缘, 2000, 7(4): 431-440.
[13]	陈发景, 汪新文, 汪新伟. 准噶尔盆地的原型和构造演化[J]. 地学前缘, 2005, 12(3): 77-89.
[14]	杨海波, 陈磊, 孔玉华. 准噶尔盆地构造单元划分新方案[J]. 新疆石油地质, 2004, 25(6): 686-688.
[15]	任新成. 准噶尔盆地乌伦古坳陷中生代构造单元划分[J]. 内蒙古石油化工, 2010, 36(14): 129-131.
[16]	王屿涛. 乌伦古地区伦2、伦3井生油岩评价和油源对比[J]. 新疆石油地质, 1987, 8(1): 7, 29-34.
[17]	何胜. 准噶尔盆地乌伦古地区石炭系油气源特征及潜力探讨[J]. 科学技术与工程, 2017, 17(12): 162-167.
[18]	LE Maitre R W, BATEMAN P, DUDEK A, et al. A classification of igneous rocks and glossary of terms[M]. London: Blackwell Scientific Publications, 1989: 3-12.
[19]	邱家骧. 国际地科联火成岩分类学分委会推荐的火山岩分类简介[J]. 现代地质, 1991, 5(4): 457-468.
[20]	王璞珺, 缴洋洋, 杨凯凯, 等. 准噶尔盆地火山岩分类研究与应用[J]. 吉林大学学报(地球科学版), 2016, 46(4): 1056-1070.
[21]	孙善平, 刘永顺, 钟蓉, 等. 火山碎屑岩分类评述及火山沉积学研究展望[J]. 岩石矿物学杂志, 2001, 20(3): 313-317, 328.
[22]	边伟华. 准噶尔盆地巴塔玛依内山组火山岩储层地质学研究[D]. 长春: 吉林大学, 2011: 24-28.
[23]	王璞珺, 郑常青, 舒萍, 等. 松辽盆地深层火山岩岩性分类方案[J]. 大庆石油地质与开发, 2007, 26(4): 17-22.
[24]	国家能源局. 油气储层评价方法: SY/T 6285—2011[S]. 北京: 石油工业出版社, 2011.
[25]	高有峰, 刘万洙, 纪学雁, 等. 松辽盆地营城组火山岩成岩作用类型、特征及其对储层物性的影响[J]. 吉林大学学报(地球科学版), 2007, 37(6): 1251-1258.
[26]	国家经济贸易委员会. 碎屑岩成岩阶段划分: SY/T 5477—2003[S]. 北京: 石油工业出版社, 2003.
[27]	王岩泉, 王金铎, 王千军, 等. 火山碎屑岩成岩作用及对储层储集性能的影响: 以准噶尔盆地车排子地区石炭系为例[J]. 中国矿业大学学报, 2019, 48(2): 405-414.
[28]	熊益学, 郗爱华, 冉启全, 等. 火山岩原生储集空间成因及其四阶段演化: 以准噶尔盆地滴西地区石炭系为例[J]. 中国地质, 2012, 39(1): 146-155.
[29]	赵澄林. 火山岩储层储集空间形成机理及含油气性[J]. 地质论评, 1996, 42(增刊1): 37-43.
[30]	李学良, 张奎华, 林会喜, 等. 准噶尔盆地西北缘二叠系风城组储层发育特征及油气富集因素[J]. 特种油气藏, 2019, 26(1): 37-44.
[31]	刘为付, 朱筱敏. 松辽盆地徐家围子断陷营城组火山岩储集空间演化[J]. 石油实验地质, 2005, 27(1): 44-49.
[32]	刘小洪, 冯明友, 郗爱华, 等. 次火山岩储层储集空间形成及演化: 以克拉美丽气田滴西18井区为例[J]. 天然气地球科学, 2016, 27(2): 278-288.
[33]	韩刚, 张文婧, 任延广, 等. 松辽盆地北部徐家围子断陷火山岩储层成因机制[J]. 地球物理学进展, 2011, 26(6): 2114-2121.
[34]	冯子辉, 邵红梅, 童英. 松辽盆地庆深气田深层火山岩储层储集性控制因素研究[J]. 地质学报, 2008, 82(6): 760-768, 864.