摘要
黄骅坳陷奥陶系古岩溶经历了3个演化阶段,具有7种发育模式。第一阶段为加里东晚期—海西早期,发育向斜翼部侵蚀洼地排泄型和向斜轴部山间洼地排泄型古岩溶;第二阶段为印支期—燕山早期,发育溶丘洼地裸露型和断陷盆地浅埋藏型古岩溶;第三阶段为燕山晚期—喜马拉雅期,发育倾斜垒式断块压释水岩溶、深埋褶断凸起压释水岩溶和深大断裂带高位掀斜断块热水岩溶。3期古岩溶均强烈发育的叠合区为最有利储集层的发育区,环板桥凹陷潜山构造带为下步重点勘探的最有利目标区之一。
The Ordovician palaeo-karst had gone through 3 evolution stages and there are 7 types of developed patterns in the Huanghua Depression. The first stage was from Late Caledonides to Early Hercynian Period, and two exposed palaeo-karst types of erosion depression discharge in syncline wings and intermountain depression discharge in syncline axle developed. The second stage was from Indochina to early Yanshan Period, and divided into exposed palaeo-karst in karst dome-depression and shallow buried palaeo-karst in down-faulted basin. The third stage was from Late Yanshan to Himalayan Period, and there were three types of compaction-released water karst at inclined fortress block areas and deeply buried faulted convex areas and hot water karst at high level inclined block in big faulted zones. The strongly karstification overlapping areas of three periods are most favorable for oil and gas accumulation.
出处
《石油勘探与开发》
SCIE
EI
CAS
CSCD
北大核心
2004年第1期51-53,共3页
Petroleum Exploration and Development
基金
国家自然科学基金(40272068)
关键词
黄骅坳陷
奥陶系
古岩溶
发育模式
油气储集
Huanghua Depression
Ordovician
palaeo-karst
developed pattern
oil and gas accumulation
