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论成藏动力系统的划分方法

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  • 西安石油大学石油天然气地质研究所,陕西 西安710065
赵靖舟(1962-),男,陕西临潼人,教授,主要从事石油地质、天然气地质及地球化学研究

收稿日期: 2003-09-25

  修回日期: 2003-10-20

  网络出版日期: 2003-12-20

基金资助

国家重点基础研究发展规划项目“中国煤层气成藏机制及经济开采基础研究”(编号:2002CD211706)资助.

DIVISION OF PETROLEUM RESERVIOR-FORMING DYNAMICSYSTEM: PRINCIPLE AND METHODS

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  • Research Institute of Oil and Gas Geology, Xi'an Petroleum University, Xi'an 710065, China

Received date: 2003-09-25

  Revised date: 2003-10-20

  Online published: 2003-12-20

摘要

成藏动力系统研究的核心是成藏动力系统的划分,正确的成藏动力系统划分对于勘探评价具有十分重要的指导意义。探讨了成藏动力系统划分的原则和方法。认为:成藏动力系统划分的原则是同一成藏动力系统油气运聚条件、运聚动力和运聚特征的相似性与不同系统的差异性;成藏动力系统划分的方法有依据压力系统(常压、超压、负压)、成藏性质(原生油气藏、次生油气藏、原生-次生复合油气藏)、油气藏相态类型(油藏、气藏、油气藏)、运移方式(侧向运移、垂向运移、侧向-垂向复合运移)、流体势、运移动力(或成藏动力)和沉积相等10多种方法,也可采用综合划分的方法。

本文引用格式

赵靖舟, 时保宏, 罗继红 . 论成藏动力系统的划分方法[J]. 天然气地球科学, 2003 , 14(6) : 429 -435 . DOI: 10.11764/j.issn.1672-1926.2003.06.429

Abstract


Petroleum reservoir-forming dynamic system, or refered to as petroleum reservoir-forming system or migration-accumulation system, is a relatively independent natural migration-accumulation system within a petroleum system. In the study of petroleum reservoir-forming system, division is very important, and a correct division is significant to petroleum exploration. In this paper, the division principle and methods of petroleum reservoir-forming dynamic system are discussed, and it is considered that its division should be based on the similarity of migration-accumulation conditions, dynamics and characteristics in different regions whin a petroleum system. Generally, petroleum reservoir-forming dynamic system can be divided in light of as many as 11 methods, including those based on pressure system (over-pressured, under-pressured or normal pressured), genesis of accumulations (primary or secondary), migration style (lateral or vertical), driven force of migration, fluid potential, hydrocarbon phases, depositional facies, distance from source center, filling degree, or synthetic factors. In many cases, synthetic division is necessary. For example, the Kuche petroleum system can be divided into a normal pressured oil system in the north slope, normal-overpressured oil-gas system in the central foreland thrust belts and normal pressured condensate gas system in Luntai normal-faulted belt and the normal-overpressured oil-gas system in the central foreland thrust belts can be subdivided into a normal secondary oil accumulation system above the Tertiary cap rocks and an overpressured primary gas accumulation system under it.

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