泥质岩裂缝油气藏的成藏条件及资源潜力

doi:10.11743/ogg20020406

Abstract

Abstract:

Almost all fractured mudstone reservoirs found both in and outside China are distributed in source rocks which are mainly composed of mudstones and shales, abundant in organic matter, calcareous and siliceous minerals. The abundance of organic carbon is 1.0%～20% in common with various types and their vitrinite reflectance is 0.5%～1.3%.There are three main genetic types of fractures which are structural,overpressured and diagenetic contraction ones in the source rocks. The mudstone reservoir caprocks are made up of non fractured mudstones, gypsum and halite rocks. Anticline and monocline are major trap types. The fractured mudstone reservoirs are believed to have great source potential due to a great deal of hydrocarbon remained in the source rocks.

Key words: fractured mudstone reservoir, source rock, structural fracture, overpressured fracture, diagenetic contraction fracture, source potential

CLC Number:

TE122.2

Zhang Jinggong, Yuan Zhengwen. FORMATION AND POTENTIAL OF FRACTURED MUDSTONE RESERVOIRS[J]. Oil & Gas Geology, 2002, 23(4): 336-338,347.

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FORMATION AND POTENTIAL OF FRACTURED MUDSTONE RESERVOIRS

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