Differential distribution of natural gas in the Lower Paleozoic paleokarst gas reservoir，Ordos Basin

Wei Xin-shan，Wei Liu-bin，Ren Jun-feng，Cai Zheng-hong，Zhou Li-xia

doi:10.11764/j.issn.1672-1926.2018.01.003

Natural Gas Geoscience >

2018 , Vol. 29 >Issue 2: 178 - 188

DOI: https://doi.org/10.11764/j.issn.1672-1926.2018.01.003

Differential distribution of natural gas in the Lower Paleozoic paleokarst gas reservoir，Ordos Basin

Expand

1.National Engineering Laboratory of Exploration ＆ Developmentof Low Permeability Oil/Gas Fields，Xi’an 710018，China；
2.Exploration Development Institute of Changqing Oilfield Company，CNPC，Xi’an 710018，China

Received date: 2017-08-15

Revised date: 2018-01-07

Online published: 2018-02-10

Fold

Abstract

The study on the geologic characteristics and distribution of hydrocarbon generation and accumulation in the Lower Paleozoic paleokarst reservoir in the Yishan Slope of Ordos Basin，indicates that the reservoir has undergone intraformational syngenetic karst，epigenetic karst development，and buried hydrothermal karst modification in the local area.The paleokarst gas pool was produced from the Upper Paleozoic coal-bearing source rock and the Lower Paleozoic marine source rock，and the Upper Paleozoic coal-bearing source rocks are the main source rocks，the Lower Paleozoic paleokarst reservoir has differential accumulation and distribution in the Yishan slope.Developments of(conventional)low permeability paleokarst gas reservoirs in the western Jingxi area，are mainly lithological traps，dolomit intercrystalline(dissolution)pore，oil-type gas，gas pool is not continuous，with edge water and bottom，local high yield and enrichment.Developments of low permeability gas reservoir in Jingbian area，are mainly palaeogeomorphic-stratigraphic traps，fractured- vuggy pore，coal-type and oil-type of mixture gas，no edge and bottom water，gas pool has large area continuous distribution.Developments of tight paleokarst gas reservoir in the eastern Jingdong area，are mainly palaeogeomorphic-stratigraphic traps，fractured-micropores，localized vuggy pore，coal-type gas，but single well production capacity is low.The accumulation of gas reservoirs is mainly controlled by the following four aspects：（1）Microfacies are the basis for controlling the development of different types of reservoirs；(2)The paleokarst paleomorphology creates differential paleokarst reservoir；(3)The orderly accumulation of multi-source hydrocarbons is the key to the differential of natural gas；(4)The period of Yanshanian tectonic inversion laid the pattern of the distribution of gas pool.

Key words：

Ordos Basin; Ordovician; Differential accumulation; Paleokarst; Carbonate rock; Entrapment

Cite this article

Wei Xin-shan，Wei Liu-bin，Ren Jun-feng，Cai Zheng-hong，Zhou Li-xia . Differential distribution of natural gas in the Lower Paleozoic paleokarst gas reservoir，Ordos Basin[J]. Natural Gas Geoscience, 2018 , 29(2) : 178 -188 . DOI: 10.11764/j.issn.1672-1926.2018.01.003

References

［1］Yang Hua，Liu Xinshe.Progress of paleozoic coal-derived gas exploration in Ordos Basin，west China[J].Petroleum Exploration and Development，2014，41（2）：129-137.
杨华，刘新社.鄂尔多斯盆地古生界煤成气勘探进展[J].石油勘探与开发，2014，41（2）：129-137.[ZK)]
[2]Yang Hua，Fu Jinhua，Wei Xinshan，et al.Natural gas exploration domains in Ordovician marine carbonates，Ordos Basin[J].Acta Petrolei Sinica，2011，32（5）：733-739.
杨华，付金华，魏新善，等.鄂尔多斯盆地奥陶系海相碳酸盐岩天然气勘探领域[J].石油学报，2011，32（5）：733-739.
[3]Yang Junjie.The discovery of Lower Paleozoic natural gas in Shan-ganning Basin[J].Natural Gas Industry，1991，11（2）：1-6.
杨俊杰.陕甘宁盆地下古生界天然气的发现[J].天然气工业，1991，11（2）：1-6.
[4]Liu Bo，Wang Yinghua，Qian Xianglin.The two Ordovician unconformities in N.China their origins and related regional reservoirs prediection[J].Acta Sedimentologica Sinica，1997，15（1）：25-30.
刘波，王英华，钱祥麟.华北奥陶系两个不整合面的成因与相关区域性储层预测[J].沉积学报，1997，15（1）：25-30.
[5]Xia Riyuan，Tang Jiansheng，Guan Bizhu，et al.Ordovician paleokarst landform in Ordos Basin and gas enrichment characteristics[J].Oil ＆ Gas Geology，1999，20（2）：133-136.
夏日元，唐健生，关碧珠，等.鄂尔多斯盆地奥陶系古岩溶地貌及天然气富集特征[J].石油与天然气地质，1999，20（2）：133-136.
[6]Pan Zhongxiang.Significance of unconformity to oil and gas migration and accumulation[J].Acta Petrolei Sinica，1983，4（4）：1-10.
潘钟祥.不整合对油气运移聚集的重要性[J].石油学报，1983，4（4）：1-10.
[7]He Dengfa.Structure of unconformity and its control on hydrocarbon accumulation[J].Petroleum Exploration and Development，2007，34（2）：142-149.
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.
[8]Chen Xueshi，Yi Wanxia，Lu Wenzhong.The paleokarst reservoirs of oil/gas fields in China[J].Acta Sedimentologica Sinica，2004，22（2）：244-253.
陈学时，易万霞，卢文忠.中国油气田古岩溶与油气储层[J].沉积学报，2004，22（2）：244-253.
[9]Jia Zhenyuan，Cai Zhongxian，Xiao Yuru.Paleoweathering crust:An important reservoir(boby)type of carbonate rocks[J].Earth Science:Journal of China University of Geosicenes，1995，20（3）：283-289.
贾振远，蔡忠贤，肖玉茹.古风化壳是碳酸盐岩一个重要的储集层(体)[J].地球科学:中国地质大学学报，1995，20（3）：283-289.
[10]Zhang Keyin，Ai Huaguo，Wu Yajun.Characteristics and oil controlling significance of uncomformity structure layer on top of carbonate rock[J].Petroleum Exploration and Development，1996，23（5）：16-19.
张克银，艾华国，吴亚军.碳酸盐岩顶部不整合面结构层及控油意义[J].石油勘探与开发，1996，23（5）：16-19.
[11]Liu Xiaoping，Sun Dongsheng，Wu Xinsong.Ordovician palaeokarst landform and its control on reservoirs in west Lungu region，the Tarim Basin[J].Petroleum Geology ＆ Experiment，2007，29（3）：265-268.
刘小平，孙冬胜，吴欣松.古岩溶地貌及其对岩溶储层的控制——以塔里木盆地轮古西地区奥陶系为例[J].石油实验地质，2007，29（3）： 265-268.
[12]Wei Xinshan，Chen Juanping，Zhang Daofeng，et al.Geological characteristics and reservoir forming conditions of large area tight carbonate gas in easrern Ordos Basin，China[J].Natural Gas Geoscience，2017，28（5）：677-686.
魏新善，陈娟萍，张道锋，等.鄂尔多斯盆地东部大面积致密碳酸盐岩气地质特征及成藏条件分析[J].天然气地球科学，2017，28（5）：677-686.
[13]Wei Xinshan，Chen Hongde，Zhang Daofeng，et al.Characteristics and gas exploration potential of tight carbonate reservoirs：A case study of Majiagou Formation in the eastern Yi-Shan Slope，Ordos Basin[J].Petroleum Exploration and Development，2017，44（3）：1-11.
魏新善，陈洪德，张道锋，等.致密碳酸盐岩储集层特征与天然气勘探潜力：以鄂尔多斯盆地伊陕斜坡东部奥陶系马家沟组为例[J].石油勘探与开发，2017，44（3）：1-11.
[14]Su Zhongtang，Chen Hongde，Xu Fenyan，et al.Geochemistry and dolomitization mechanism of Majiagou dolomites in Ordovician，Ordos Basin，China[J].Acta Petrologica Sinica 2011，27（8）：2230-2238.
苏中堂，陈洪德，徐粉燕，等.鄂尔多斯盆地马家沟组白云岩地球化学特征及白云岩化机制分析[J].岩石学报，2011，27（8）：2230-2238.
[15]Zheng Congbin，Wang Shilu，Jia Shuyuan.Formation and evolution of caves in main production formation in the central part of Shan-Gan-Ning Gasfield[J].Jour Geol &Min Res North China，1996，11（1）：73-79.
郑聪斌，王世录，贾疏原.陕甘宁盆地中部气田主要产层孔洞的形成与演化[J].华北地质矿产杂志，1996，11（1）：73-79.
[16]Zhao Wenzhi，Shen Anjiang，Zheng Jianfeng，et al.The porosity origin of dolostone reservoirs in the Tarim，Sichuan and Ordos Basins and its implication to reservoir prediction[J].Science China：Earth Sciences，2014，44（9）：1925-1939.
赵文智，沈安江，郑剑锋，等.塔里木、四川及鄂尔多斯盆地白云岩储层孔隙成因探讨及对储层预测的指导意义[J].中国科学：地球科学.2014，44（9）：1925-1939.
[17]Huang Difan，Xiong Chuanwu，Yang Junjie，et al.Gas source discrimination and natural gas genetic types of central gas field in Ordos Basin[J].Natural Gas Industry，1996，16（6）：1-5.
黄第藩，熊传武，杨俊杰，等.鄂尔多斯盆地中部气田气源判识和天然气成因类型[J].天然气工业，1996，16（6）：1-5.
[18]Wang Chuangang，Wang Yi，Xu Huazheng，et al.Discussion on evolution of source rocks in Lower Paleozoic of Ordos Basin[J].Acta Petrolei Sinica，2009，30（1）：38-45.
王传刚，王毅，许化政，等.论鄂尔多斯盆地下古生界烃源岩的成藏演化特征[J].石油学报，2009，30（1）：38-45.
[19]Dai Jinxing，Li Jian，Luo Xia，et al.Stable carbon isotope compositions and source rock geochemistry of the giant gas accumulations in the Ordos Basin，China[J].Organic Geochemistry，2005，36(12)：1617-1635.
[20]Xia X Y，Chen J，Braun R，et al.Isotopic reversals with respect to maturity trends due to mixing of primary and secondary products in source rocks[J].Chemical Geology 2013，339（2）：205-212.
[21]Yao Jingli，Wei Xinshan，Zang Daofeng，et al.Sedimentary microfacies of anhydrite concretion dolomite rock:Take Majiagou Formation Ma531 layer in the eastern Ordos Basin as an example[J].Petroleum Exploration and Development，2010，37（6）：690-695.
姚泾利，魏新善，张道峰，等.硬石膏结核白云岩沉积微相——以鄂尔多斯盆地东部马五31小层为例[J].石油勘探与开发，2010，37（6）：690-695.
[22]Yang Hua，Bao Hongping.Characteristics of hydrocarbon accumulation in the Middle Ordocician assemblages and their significance for gas exploration in the Ordos Basin[J].Natural Gas Industry，2011，31(12)：11-20.
杨华，包洪平.鄂尔多斯盆地奥陶系中组合成藏特征及勘探启示[J].天然气工业，2011，31(12)：11-20.
[23]John M Hunt.Petroleum Geochemistry and Geology[M].New York：W.H.Freeman and Company，1996：90-101.
[24]Ren Zhanli，Zhang Sheng，Gao Shengli，et al.Tectonic thermal history and its significance on the formation of oil and gas accumulation and mineral deposit in Ordos Basin[J].Science in China:Serices D，2007，37（supplementⅠ）：23-32.
任战利，张盛，高胜利.鄂尔多斯盆地构造热演化史及其成藏成矿意义[J].中国科学:Ｄ辑，2007，37（增刊Ⅰ）：23-32.
[25]Ehrenberg S N，Eberli G P，Keramati M，et al.Porosity-permeability relationships in interlayered limestone-dolostone reservoirs[J].AAPG Bulletin，2006，90（1）：91-114.

Options

Outlines

〈

〉

模态框（Modal）标题

Abstract

Cite this article

References