Elementary Factors and Their Configuration of BiogasAccumulation in Eastern Qaidam Basin
Received date: 2007-12-13
Revised date: 2008-02-19
Online published: 2008-04-10
Sanhu area in east Qaidam basin is the Quaternary sedimentary center in the Qaidam basin and the biggest biogas production area in China, has an average surface altitude of around 2800 m, and locates in the northern segment of the Qinghai-Tibet Plateau. The Quaternary system, which mainly consists of weak consolidated sandstone and mudstone, has a thickness of more than 3400 meters. The condition of low temperature and high salinity provides a material foundation for the formation of biogas, the sand-shale sequences provide adequate reservoir and caprock conditions for biogas accumulation, the synsedimentary anticlines provide biogas traps, and the subsurface directional flow water connects the source of biogas with reservoirs and traps and makes a dynamic balance of biogas accumulation-leakage. The promising regions for Quaternary biogas accumulation and location should meet all the following requirements: adequate biogas source, long time traps, good mothballing conditions and their good association. The Sebei and Tainan areas in the north slope of the Sanhu area are favorable direction of gas migration and should be regarded as targets of next exploration.
Key words: Qaidam basin; Quaternary system; Biogas accumulation.
GUAN Zhi-qiang,, ; XIA Bin ;Lü Bao-feng . Elementary Factors and Their Configuration of BiogasAccumulation in Eastern Qaidam Basin[J]. Natural Gas Geoscience, 2008 , 19(2) : 165 -170 . DOI: 10.11764/j.issn.1672-1926.2008.02.165
[1]管志强,党玉琪,王金鹏.柴达木盆地第四系生物气勘探现状及前景分析[J].中国石油勘探,2002,7(1):67-73.
[2]梁全胜,刘震,常迈,等.柴达木盆地三湖坳陷浅层生物气成藏模式分析[J]. 西安石油大学学报:自然科学版,2005,20(3):36-39.
[3]管志强,徐子远,周瑞年,等.柴达木盆地第四系生物气的成藏条件及控制因素[J].天然气工业,2001,21(6):1-5.
[4]魏国齐,张德来,张英,等. 柴达木盆地第四系生物气形成机理、分布规律与勘探前景[J]. 石油勘探与开发,2005,32(4):84-88.
[5]张晓宝,徐自远,段毅,等.柴达木盆地三湖地区第四系生物气的形成途径与运聚方式[J]. 地质论评,2003,49(2):168-174.
[6]李本亮,王明明,魏国齐,等. 柴达木盆地三湖地区生物气横向运聚成藏研究[J]. 地质论评,2003,49(1):93-100.
[7]党玉琪,侯泽生,徐子远,等.柴达木盆地生物气成藏条件[J].新疆石油地质,2003,24(5): 374- 378.
[8]丁安娜,王明明,李本亮,等.生物气的形成机理及源岩的地球化学特征[J].天然气地球科学,2003,14(5):402-407.
[9]党玉琪,张道伟,徐子远,等.柴达木盆地三湖地区第四系沉积相与生物气成藏[J].古地理学报,2004,6(1):110-118.
[10]朱筱敏,康安,韩德馨,等.柴达木盆地第四纪环境演变、构造变形与青藏高原隆升的关系[J].地质科学,2003, 38(3):413-424.
[11]翟光明.中国石油地质志——青藏油气区:卷十四[M].北京:石油工业出版社,1990:1-100,186-231.
[12]康安,朱筱敏,韩德馨,等.柴达木盆地第四纪孢粉组合及古气候波动[J].地质通报, 2003, 22(1): 12-15.
[13]姜桂凤,孔红喜,侯泽,等. 柴达木盆地生物气资源潜力评价[J].新疆石油地质,2005,26(4): 363- 366.
[14]徐子远,谢丽,张道伟,等. 柴达木盆地第四系生物气的勘探历程与储量现状[J]. 新疆石油地质,2005, 26(4): 437- 440.
[15]郭泽清,李本亮,曾富英,等. 生物气分布特征和成藏条件[J]. 天然气地球科学,2006,17(3):407-413.
[16]张祥, 纪宗兰, 杨银山, 等.关于生物气源岩评价标准的讨论——以柴达木盆地第四系生物气为例[J].天然气地球科学, 2004, 15(5):465-470.
[17]张水昌,赵文智,李先奇,等. 生物气研究新进展与勘探策略[J].石油勘探与开发,2005,32(4):90-96.
[18]林春明,李艳丽,漆滨汶.生物气研究现状与勘探前景[J].古地理学报,2006,8(3):317-328.
[19]张祥, 纪宗兰, 杨银山, 等.试论柴达木盆地第四系盖层的封盖机理[J].天然气地球科学, 2004,15(4):383-386.
[20]马达德,陈新领,寇福德,等.构造圈闭在柴东天然气成藏中的控制作用[J].天然气工业,2004,24(10):17-19.
[21]邓宇,张辉,钱贻伯,等. 柴达木盆地东部第四系某钻孔沉积物中厌氧细菌的组成与分布[J].沉积学报,1996,14(增刊):220-226.
[22]王明明, 李本亮, 魏国齐, 等.柴达木盆地东部第四纪水文地质条件与生物气成藏[J].石油与天然气地质,2003,24(4): 341-344.
/
〈 |
|
〉 |