| 四川盆地中三叠统-上三叠统马鞍塘组天然气藏特征和有利勘探地区 |
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| 引用本文： | 秦川,刘树根,汪华,孙纬 李德星 杨荣军 张长俊,吴熙纯.四川盆地中三叠统-上三叠统马鞍塘组天然气藏特征和有利勘探地区[J].地质科学,2011,46(1):258-272. |
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| 作者姓名： | 秦川 刘树根 汪华 孙纬 李德星 杨荣军 张长俊 吴熙纯 |
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| 作者单位： | 1.成都理工大学油气藏地质及开发工程国家重点实验室 成都 610059； 2.中国石油西南油气田公司勘探开发研究院成都 610051； 3.成都理工大学地球科学学院 成都 610059； 4.中国石油辽河油田 分公司勘探开发研究院辽宁盘锦 124010； 5.中国石油勘探开发研究院西北分院兰州 730020 |
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| 摘 要： | 四川盆地中三叠统雷口坡组勘探已近40年,但迄今为止只发现了两个大中型气藏.近年来,雷口坡组钻井油气显示活跃,展示了良好的勘探前景.四川盆地中三叠统气藏储层主要位于底部雷一段、顶部雷三一雷四段,天然气主要来源于上二叠统龙潭组和上三叠统须家河组烃源岩,各气藏天然气组分特征也不尽相同,储集空间均以各类次生溶蚀孔隙为主,多为低...
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| 关 键 词： | 四川盆地 中三叠统 马鞍塘组 天然气藏 勘探前景 |
| 收稿时间： | 2010-10-18 |
| 修稿时间： | 2010-11-16 |
The gas reservoir characteristics and advantageous exploration reas in Middle Triassic Leikoupo Formation-Upper Triassic Ma'antang Formation in Sichuan Basin |
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| Qin Chuan Liu Shugen Wang Hua Sun Wei Li Dexing Yang Rongjun Zhang Changjun Wu Xichun.The gas reservoir characteristics and advantageous exploration reas in Middle Triassic Leikoupo Formation-Upper Triassic Ma'antang Formation in Sichuan Basin[J].Chinese Journal of Geology,2011,46(1):258-272. |
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| Authors: | Qin Chuan Liu Shugen Wang Hua Sun Wei Li Dexing Yang Rongjun Zhang Changjun Wu Xichun |
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| Affiliation: | 1.State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation|CDUT|Chengdu 610059;2.Exploration and Development Institute of Southwest Oil and Gas Field Co.| PetroChina Chengdu 610051； 3.Chengdu University of Technology|Chengdu 610059； 4.Exploration and Development Research Institute, CNPC Liaohe Petroleum, Panjin, Liaoning 124010|5.PetroChina Research Institute of Petroleum Exploration & Development Northwest|Lanzhou 730020 |
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| Abstract: | The exploration history of Middle Triassic Leikoupo Formation is about 40 years in Sichuan Basin，but there are only two large and medium sized gas pools found till today.Recently，the hydrocarbon shows in Leikoupo Formation were found during drilling and revealed a good exploration prospect for the unit.The reservoir rocks of Middle Triassic gas pools are mainly located in the base(T2l1)and top of the formation(T2l3 T2l4)with low medium porosity and low permeability，and the hydrocarbon source rocks were Upper Permian Longtan Formation and Upper Triassic Xujiahe Formation，respectively.The component of natural gas in Middle Triassic was varied.The main reservoir spaces are various secondary dissolved pores，and the reservoir type is porous or fractured porous.The sealing of gas pools is well developed with good direct and indirect cap rocks.The reservoir rocks of Upper Triassic Maantang Formation are calcarenite and micrite located at the base of the unit，and its source rock and seal are similar to the gas pools in the top of Leikoupo Formation(T2l3 4).The characteristics of the source reservoir seal plays of Middle Upper Triassic in Sichuan Basin are divided into two types： 1)upper Permian Longtan Formation source rock＋the reservoir rocks in the first second segment of Leikoupo Formation(T2l12)＋the anhydrite salt seal in Leikoupo Formation； 2)Upper Triassic source rock＋the reservoir rocks in the third fourth segment of Leikoupo Formation(T2l34)and in upper Triassic Maantang Formation＋the mudstone seal in the Upper Triassic.The frontier area of the central southern segment of Longmen Mountain should be the prospect area of the oil gas exploration in the top Leikoupo Formation(T2l34)and Maantang Formatioon in Sichuan Basin. |
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| Keywords: | Sichuan Basin Triassic Leikoupo Formation Maantang Formation Gas pool Exploration prospect |
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