| Two accumulation modes of marine-origin natural gas in the Tarim Basin |
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| 引用本文： | WANG HongJun ZHAO WenZhi HU GuoYi HU JianFeng. Two accumulation modes of marine-origin natural gas in the Tarim Basin[J]. 科学通报(英文版), 2007, 52(A01): 215-223 |
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| 作者姓名： | WANG HongJun ZHAO WenZhi HU GuoYi HU JianFeng |
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| 作者单位： | [1]Research Institute of PetroChina Exploration and Development, Beijing 100083, China [2]Research Institute of the Tarim Oilfield Corporation, PetroChina, Korla 841000, China |
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| 基金项目： | Supported by the ＂973＂ Programme of China （Grant No. 2001CB209100） |
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| 摘 要： |
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| 关 键 词： | 塔里木盆地 天然气 资源开发 资源积蓄 |
| 修稿时间： | 2006-12-12 |
Two accumulation modes of marine-origin natural gas in the Tarim Basin |
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| Abstract: | HeUanhe gas field, Lungudong gas field and Tazhong gas field are marine marine-origin natural gas reservoirs in the craton area in the Tarim Basin. The natural gas is generated from Cambrian source rocks. The simulation experiment indicated that the cracking of the dispersedly dissoluble organic matter remaining in the source rocks is the main origin of marine natural gas. There are two modes to form gas reservoirs, one is the dry gas reservoir such as HeUanhe gas field, in which gas accumulated on the fault belt with violent tectonic movement, the other is condensate gas reservoir formed on the inheriting uplift such as Lunnan and Tazhong gas fields. The hybrid simulation experiment of cracking gas and crude oil indicated that crude oil accumulated on a large scale in those uplift belts at the early stage, and natural gas filled the ancient oil reservoir at the late stage, and the gas reservoirs were formed after the gas mixed with the crude oil. |
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| Keywords: | Tarim Basin marine natural gas origin cracking accumulation |
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