[1]周世超,王兴志,曾德铭,等.川中龙岗地区中三叠统雷四3亚段气藏地球化学特征与成藏分析[J].新疆石油地质,2015,36(04):415.[doi:10.7657/XJPG20150407]
 ZHOU Shichao,WANG Xingzhi,ZENG Deming,et al.Geochemistry and Accumulation Analysis of Gas Reservoir of Leikoupo43 SubMember of Middle Triassic in Longgang Area, Central Sichuan Basin[J].Xinjiang Petroleum Geology,2015,36(04):415.[doi:10.7657/XJPG20150407]
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川中龙岗地区中三叠统雷四3亚段气藏地球化学特征与成藏分析()
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《新疆石油地质》[ISSN:1001-3873/CN:65-1107/TE]

卷:
36
期数:
2015年04期
页码:
415
栏目:
出版日期:
2015-08-30

文章信息/Info

Title:
Geochemistry and Accumulation Analysis of Gas Reservoir of Leikoupo43 SubMember of Middle Triassic in Longgang Area, Central Sichuan Basin
文章编号:
1001-3873(2015)04-0415-08
作者:
周世超1王兴志1曾德铭1何 冰2邹 祥2
(1.西南石油大学 地球科学与技术学院,成都 610500;2.中国石油 西南油气田分公司 川中气矿,四川 遂宁 629000)
Author(s):
ZHOU Shichao1 WANG Xingzhi1 ZENG Deming1 HE Bing2 ZOU Xiang2
(1.College of Earth Science and Technology, Southwest Petroleum University, Chengdu, Sichuan610500, China;2.Central Sichuan Gas Field, Southwest Oil & Gas Field Company, PetroChina, Suining, Sichuan629000, China)
关键词:
川中地区龙岗地区雷口坡组地球化学特征成藏条件主控因素
Keywords:
central Sichuan basin Longgang area Leikoupo formation geochemistry hydrocarbon accumulation condition main controlling factor
分类号:
TE112.1
DOI:
10.7657/XJPG20150407
文献标志码:
A
摘要:
川中龙岗地区中三叠统雷四3亚段气藏无统一的气水界面,复杂的气水关系制约着气田后期的开发。在分析地球化学特征基础上,通过对研究区气、水分布规律研究,发现气藏的形成主要受储集层非均质性、沉积相、构造位置、断层及裂缝发育程度、保存条件等因素控制。对龙岗地区天然气组成和碳同位素特征分析,认为上覆须家河组为雷口坡组气藏主要的气源层;颗粒滩亚相储集层物性较好,在一定生烃强度下,天然气充注程度较高;气层、气水层、含气水层以孤立状构造圈闭为主;构造位置对气水分异作用明显;研究区断层及裂缝发育,为气藏提供了主要的输导体系及储集空间;上覆须家河组底部泥岩及雷口坡组膏盐岩层构成良好的盖层条件。
Abstract:
The gas reservoir of Leikoupo43 sub?member of the Middle Triassic in Longgang area of central Sichuan basin has no uniform gas?water interface, and its late development is controlled by the complex gas?water relationship. Based on the analysis of the geochemical characteristics, the study on the gas and water distribution regularities reveals that the gas accumulation was controlled by the reservoir heterogeneity, sedimentary facies, tectonic setting, fault and fracture and preservation condition, etc. The comparative analysis of gas composition and isotopic characteristics indicates that the overlying Xujiahe formation is the main gas source layer of Leikoupo gas reservoir; In a certain condition of hydrocarbon generation intensity, the reservoir of grain shoal subfacies has good physical properties, with a high degree of gas charging. The gas layer, gas?water layer, gas?containing water layer are all dominated by isolated structural traps, the tectonic setting is of obvious differentiation effect on the gas and water; the developed faults and fractures in this area provide primary gas conduction system and reservoir space; the bottom mudstone of the Xujiahe formation and the Leikoupo gypsum?salt rocks constitute good conditions for hydrocarbon preservation

相似文献/References:

[1]邹娟,乐园,金涛,等.川中地区侏罗系致密砂岩储集层成因及“甜点”预测[J].新疆石油地质,2018,(05):555.[doi:10.7657/XJPG20180509]
 ZOU Juan,LE Yuan,JIN Tao,et al.Genesis and Sweet Spot Prediction of Jurassic Tight Sandstone Reservoir in Central Sichuan Basin[J].Xinjiang Petroleum Geology,2018,(04):555.[doi:10.7657/XJPG20180509]

更新日期/Last Update: 2015-09-21