黔中隆起及邻区下寒武统页岩气成藏特殊性分析

张培先

doi:10.11781/sysydz201702162

黔中隆起及邻区下寒武统页岩气成藏特殊性分析

doi: 10.11781/sysydz201702162

张培先

中国石化华东油气分公司勘探开发研究院, 南京 210011

基金项目: 国家科技重大专项"彭水地区常压页岩气勘探开发示范工程"（2016ZX05061）；国土资源部；财政部"贵州黄平页岩气综合利用示范基地建设"项目联合资助。

详细信息

作者简介:
张培先(1983-),男,硕士,工程师,从事页岩气勘探研究工作。E-mail:peixianzhang1983@163.com。

中图分类号: TE132.2
计量
- 文章访问数: 708
- HTML全文浏览量: 56
- PDF下载量: 343
- 被引次数: 0
出版历程
- 收稿日期: 2016-10-08
- 修回日期: 2017-01-09
- 刊出日期: 2017-03-28

Peculiar accumulation conditions for shale gas in the Lower Cambrian in Qianzhong uplift and its periphery

Zhang Peixian

Research Institute of Exploration & Development, SINOPEC East China Company, Nanjing, Jiangsu 210011, China

摘要

摘要: 黔中隆起及邻区下寒武统牛蹄塘组页岩厚度大、有机碳含量高、热演化程度高、脆性矿物含量高，具备页岩气成藏的基本地质条件，但经过多年页岩气勘探实践，至今未取得实质性突破，主要受页岩气成藏条件的特殊性控制。在系统分析野外剖面以及黄页1井、龙页1井、丁山1井等资料的基础上，重点开展沉积相、页岩分布、有机碳含量、热演化程度等页岩基本地质特征和储集类型、储集物性及页岩含气性等页岩储层特征的研究，认为页岩气成藏条件特殊性主要表现在2个方面：（1）页岩热演化程度的特殊性，生烃、排烃历史复杂，热演化程度高，不利于页岩气的赋存和富集；（2）储层特殊性，热演化史复杂、成岩作用强导致页岩孔隙度较低，尤其有机孔发育少且孔径较小，页岩储集性差。在此基础上，制定了页岩气选区评价参数标准，评价了页岩气富集有利区。初步明确了黔南坳陷黄平地区具有构造相对稳定、页岩埋深适中、有机质热演化程度相对较低、保存条件较好及含气性好等特征，勘探风险程度相对较低，是黔中隆起及邻区页岩气勘探突破的Ⅰ类有利地区；黔西地区由于成熟度较高，是探索高热演化条件下页岩气藏的Ⅱ类有利区。
- 页岩气 /
- 成藏特殊性 /
- 牛蹄塘组 /
- 下寒武统 /
- 黔中隆起
Abstract: The Lower Cambrian Niutitang Formation shale is characterized by large thickness, high organic carbon content, high thermal evolution degree and high brittle mineral content in the Qianzhong uplift and its periphery. It has the basic geological conditions for shale gas accumulation. However, after many years of exploration, the study area has not made a substantial breakthrough, and some peculiar conditions for shale gas accumulation are the main controlling factors. Through the systematic analysis of outcrop sections and the data from wells including Huangye 1, Longye 1 and Dingshan 1, this paper focuses on the study of the basic geological characteristics of shale, including sedimentary facies, shale distribution, organic carbon content, thermal evolution degree, and the shale reservoir characteristics, including reservoir types, reservoir physical properties and gas content. The peculiarities of shale gas accumulation conditions are mainly manifested in two aspects: (1) The particularity of high shale thermal evolution degree, with complex hydrocarbon generation and expulsion history, is not conducive to gas occurrence and enrichment. (2) The particularity of the shale reservoir. Complex thermal evolution and strong diagenesis resulted in low porosity, especially little organic matter pores and small diameter, which made the reservoir property of shale very poor. On this basis, some parameters for shale gas exploration were selected, and some favorable areas for shale gas enrichment were evaluated. The Huangping region in the Qiannan Depression is a type Ⅰ favorable area of shale gas exploration in the Qianzhong uplift and its periphery, with relatively stable structure, moderate depth, relatively low thermal evolution degree of organic matter, favorable preservation conditions and good gas-bearing capacity. The exploration risk of the Huangping region is relatively low. Because of high maturity, the Qianxi region is a type Ⅱ favorable area to explore for shale gas reservoirs with high thermal evolution degree.
- shale gas /
- peculiar accumulation conditions /
- Niutitang Formation /
- Lower Cambrian /
- Qianzhong uplift

HTML全文

参考文献(21)

[1]	梁兴,张廷山,杨洋,等. 滇黔北地区筇竹寺组高演化页岩气储层微观孔隙特征及其控制因素[J]. 天然气工业,2014,34(2):18-26. Liang Xing,Zhang Tingshan,Yang Yang,et al. Microscopic pore structure and its controlling factors of overmature shale in the Lower Cambrian Qiongzhusi Fm,northern Yunnan and Guizhou provinces of China[J]. Natural Gas Industry,2014,34(2):18-26.
[2]	杨振恒,李志明,沈宝剑,等. 页岩气成藏条件及我国黔南坳陷页岩气勘探前景浅析[J]. 中国石油勘探,2009,14(3):24-28. Yang Zhenheng,Li Zhiming,Shen Baojian,et al. Shale gas accumulation conditions and exploration prospect in southern Guizhou Depression[J]. China Petroleum Exploration,2009,14(3):24-28.
[3]	腾格尔,秦建中,郑伦举. 黔南坳陷海相优质烃源岩的生烃潜力及时空分布[J]. 地质学报,2008,82(3):366-372. Tenger,Qin Jianzhong,Zheng Lunju. Hydrocarbon potential on excellent hydrocarbon source rock in southern Guizhou Depression and its spacial-temporal distribution[J]. Acta Geologica Sinica,2008,82(3):366-372.
[4]	王濡岳,丁文龙,龚大建,等. 黔北地区海相页岩气保存条件:以贵州岑巩区块下寒武统牛蹄塘组为例[J]. 石油与天然气地质,2016,37(1):45-55. Wang Ruyue,Ding Wenlong,Gong Dajian,et al. Gas preservation conditions of marine shale in northern Guizhou area:A case study of the Lower Cambrian Niutitang Formation in the Cen'gong block,Guizhou Province[J]. Oil & Gas Geology,2016,37(1):45-55.
[5]	陈旭,戎嘉余,周志毅,等. 上扬子区奥陶-志留纪之交的黔中隆起和宜昌上升[J]. 科学通报,2001,46(12):1052-1056. Chen Xu,Rong Jiayu,Zhou Zhiyi,et al. The central Guizhou and Yi chang uplifts,Upper Yangtze region,between Ordovician and Silurian[J]. Chinese Science Bulletin,2001,46(18):1580-1584.
[6]	汤良杰,郭彤楼,田海芹,等. 黔中地区多期构造演化、差异变形与油气保存条件[J]. 地质学报,2008,82(3):298-307. Tang Liangjie,Guo Tonglou,Tian Haiqing,et al. Poly-cycle tectonic evolution,differential deformation and hydrocarbon reservation of central Guizhou and adjacent region[J]. Acta Geologica Sinica,2008,82(3):298-307.
[7]	邓新,杨坤光,刘彦良,等. 黔中隆起性质及其构造演化[J]. 地学前缘,2010,17(3):79-89. Deng Xin,Yang Kunguang,Liu Yanliang,et al. Characteristics and tectonic evolution of Qianzhong Uplift[J]. Earth Science,2010,17(3):79-89.
[8]	Curtis J B. Fractured shale-gas systems[J]. AAPG Bulletin,2002,86(11):1921-1938.
[9]	Law B E,Curtis J B. Introduction to unconventional petroleum systems[J]. AAPG Bulletin,2002,86(11):1851-1852.
[10]	Mavor M. Barnett shale gas-in-place volume including sorbed and free gas volume:AAPG Southwest Section Meeting,March 1-42003,Fort Worth,Texas. Fort Worth,Texas:AAPG,2003.
[11]	吴朝东,陈其英,雷家锦. 湘西震旦-寒武纪黑色岩系的有机岩石学特征及其形成条件[J]. 岩石学报,1999,15(3):453-462. Wu Chaodong,Chen Qiying,Lei Jiajin. The genesis factors and organic petrology of black shale series from the Upper Sinian to the Lower Cambrian,southwest of China[J]. Acta Petrologica Sinica,1999,15(3):453-462.
[12]	聂海宽,边瑞康,张培先,等. 川东南地区下古生界页岩储层微观类型与特征及其对含气量的影响[J]. 地学前缘,2014,21(4):331-343. Nie Haikuan,Bian Ruikang,Zhang Peixian,et al. Micro-types and characteristics of shale reservoir of the Lower Paleozoic in southeast Sichuan Basin,and their effects on the gas content[J]. Earth Science Frontiers,2014,21(4):331-343.
[13]	于炳松. 页岩气储层的特殊性及其评价思路和内容[J]. 地学前缘,2012,19(3):252-258. Yu Bingsong. Particularity of shale gas reservoir and its evaluation[J]. Earth Science Frontiers,2012,19(3):252-258.
[14]	聂海宽,张金川. 页岩气储层类型和特征研究:以四川盆地及其周缘下古生界为例[J]. 石油实验地质,2011,33(3):219-225. Nie Haikuan,Zhang Jinchuan. Types and characteristics of shale gas reservoir:A case study of Lower Paleozoic in and around Sichuan Basin[J]. Petroleum Geology & Experiment,2011,33(3):219-225.
[15]	李新景,胡素云,程克明. 北美裂缝性页岩气勘探开发的启示[J]. 石油勘探与开发,2007,34(4):392-400. Li Xinjing,Hu Suyun,Cheng Keming. Suggestions from the development of fractured shale gas in North America[J]. Petro-leum Exploration and Development,2007,34(4):392-400.
[16]	张金川,金之钧,袁明生. 页岩气成藏机理和分布[J]. 天然气工业,2004,24(7):15-18. Zhang Jinchuan,Jin Zhijun,Yuan Mingsheng. Reservoiring mechanism of shale gas and its distribution[J]. Natural Gas Industry,2004,24(7):15-18.
[17]	张金川,姜生玲,唐玄,等. 我国页岩气富集类型及资源特点[J]. 天然气工业,2009,29(12):109-114. Zhang Jinchuan,Jiang Shengling,Tang Xuan,et al. Accumulation types and resources characteristics of shale gas in China[J]. Natural Gas Industry,2009,29(12):109-114.
[18]	梁兴,叶熙,张介辉,等. 滇黔北下古生界海相页岩气藏赋存条件评价[J]. 海相油气地质,2011,16(4):11-21. Liang Xing,Ye Xi,Zhang Jiehui,et al. Evaluation of preservation conditions of Lower Paleozoic marine shale gas reservoirs in the northern part of Dianqianbei Depression[J]. Marine Origin Petroleum Geology,2011,16(4):11-21.
[19]	聂海宽,金之钧,边瑞康,等. 四川盆地及其周缘上奥陶统五峰组-下志留统龙马溪组页岩气"源-盖控藏"富集[J]. 石油学报,2016,37(5):557-571. Nie Haikuan,Jin Zhijun,Bian Ruikang,et al. The "source-cap hydrocarbon-controlling" enrichment of shale gas in Upper Ordovician Wufeng Formation-Lower Silurian Longmaxi Formation of Sichuan Basin and its periphery[J]. Acta Petrolei Sinica,2016,37(5):557-571.
[20]	刘超英. 页岩气勘探选区评价方法探讨[J]. 石油实验地质,2013,35(5):564-569. Liu Chaoying. Discussion on methods of shale gas exploration evaluation[J]. Petroleum Geology & Experiment,2013,35(5):564-569.
[21]	徐政语,姚根顺,梁兴,等. 扬子陆块下古生界页岩气保存条件分析[J]. 石油实验地质,2015,37(4):407-417. Xu Zhengyu,Yao Genshun,Liang Xing,et al. Shale gas preservation conditions in the Lower Paleozoic,Yangtze block[J]. Petroleum Geology & Experiment,2015,37(4):407-417.