石油与天然气地质 ›› 1983, Vol. 4 ›› Issue (1): 66-75.doi: 10.11743/ogg19830105

• 论文 • 上一篇    下一篇

泰州地区古水文地质条件与油气

龚与觐   

  1. 江苏省石油地质大队
  • 收稿日期:1982-03-02 出版日期:1983-03-25 发布日期:2012-01-16

PALEOHYDROLOGICAL CONDITIONS IN RELATION TO OIL AND GAS OF TAIZHOU REGION

Gong Yujin   

  1. Jiangsu Brigade of Petroleum Geology
  • Received:1982-03-02 Online:1983-03-25 Published:2012-01-16

摘要:

从生油母质的堆积、保存,到油气生成、运移、聚集或分散的整个过程,都是在水的积极参与下进行的。故油气水具有成生联系和相似的产出状态。要弄清油气藏的形成和破坏规律,就必须研究古尔文地质。 地下水的来源很复杂,有源于地球深部的初生水和再生水;也有源于地球外部的大气降水、地表渗入水、沉积水和古代渗入水等。这些地下水在不同类型的储集层中,其运动规律受不同时期的水文地质条件所制约。

Abstract:

Underground waters were involved in the entire proeesses of betroleum generation,migration,concentration and deterioration,An important approach for recognizing regularities of oil and gas distribution,therefore,is to study the evolution and motion of underground waters in oil- and gas-bearing basins. As for the case of Taizhou,Jiangsu proyince,hydrological phases and subphases are divided according to paleotectonic and sedimentary settigns. It is suggested that the form ation and preservation of oil and gas are related to hydrological subphases of deposition waters,while remigration,evolution and deterioration ofoil and gas to hydrological subphases of percolation waters. Based on paleogeo-logic characteristics and paleohydrodynamics,promising zones for oil and gas migration and concentration,i.e. the fault-step zones,and complicated hydrological patterns of deposition or/and percolation waters are described. Paleonydrological environments and tectonic traps which may produce negative influence to reservoirs are also discussed in terms of indensity index of water interechange,hydrochemistry,physical and chemical properties of petroleum and content end distribution of superficial minerals. Finally,a principle for evaluation of oil potentiality is given from the hydrological point of view.