华北地台奥陶系碳酸盐岩储集岩成因类型与展布  

The Origin and Occurrence of Ordovician Carbonate Rock Reservoir of North China Platform

作　　者：陈霞 徐辉 

机构地区：[1]华北石油地质局地质研究大队

出　　处：《沉积学报》1994年第3期47-55,共9页Acta Sedimentologica Sinica

摘　　要：华北地合奥陶系是一套海相碳酸盐岩。作为油气的储集层是沉积成岩作用叠合加里东期、印支—燕山期、燕山—喜山期构造作用改造形成的。在漫长的地史过程中，演化出三种类型五大套储集层，其中第Ⅰ套蒸发潮坪层间溶解带和第Ⅱ套加里东期不整合面附近奥陶系侵蚀岩溶带，已是鄂尔多斯地区古生界天然气生产层。第Ⅳ套燕山—喜山期不整合面附近奥陶系基岩古潜山则是华北地区新生界石油富集体。第Ⅲ套沿印支—燕山期断裂带发育的岩溶储集岩，在西南部台缘区也有古生界天然气的产出。Abstract The Ordovician in north China platform consists of marinecarbonate rocks. As oil and gas resrvoirs. They are formed by the combination of sedimentation. tectonism and diagenesis. Three sets of reservoir were formed duringgeo history. The first type of reservoir region is Paleo-weathered and teached rocks. They occur in the centrat pet of Ordos Mesozoic and Cenozoic fault depressions in east of the Taihang montain which distributed from the 109. 3 E to the 39 N area The second type of the reservoir are deep fault rock solution zones. which are mostly developed along Yanshan or Himalaya fault zone. They mainly occur in the sourth-western margin. The third type of reservoir is evaporating strand flat solution reservoir. which mainly occours in the central-eastern part of the Ordos. The three resaervoirs can be divided into five types and their occurrences can be determined. 1. The ordivician dolomite reservoirs formed by the sedimentation. 2. Then dolomite and solution collage reservoir formed by the sedimentation and the caledoninn tectonism. 3. The carbonate rock reservoir formed hi the sedimention and the Indosinian-Yanshan tectonisms. 4. The carbonate rock reservoir formed by the sedimentation and the multiple cyclic tectonism. 5. Thesolution pore and cavity dolomite reservoir formed by the sedimentation-diagenesis and Huaiyuen teotonism. The practices of the oil and gas exploration and production have prvoren that the oil reserrvoir can be formed be formed by the combination of the ordivician carbonate rock reservoirs and the Mesozoic-Cenozoic hydrocarbon. It is important to study the ordivicisn carbonate rock reservoirs to the hydrocarbon exploration of the Ordos.

关 键 词：碳酸盐岩 储集岩 成因 类型 奥陶纪 

分 类 号：P588.245[天文地球—岩石学]