古风化壳是碳酸盐岩一个重要的储集层（体）类型

PALEOWEATHERING CRUST:AN IMPORTANT RESERVOIR (BODY) TYPE OF CARBONATE ROCKS

大量含油气区的勘探开发证明，古风化壳是碳酸盐岩一个重要的储集层（体）．作者以塔里木盆地下古生界古风化壳储集层（体）为基础，结合鄂尔多斯地区和任丘油田，从地层、岩矿组成、成岩作用、古岩溶、垂向结构、储集性能、测井曲线、地震反射和含油气性诸方面进行了详细研究。大量资料证明，古风化壳是经长期表生成岩作用形成的特有的地质体，其内部具有特有的分带性结构和含油气性。用岩溶并不能代表它的特殊性和整体概念，应称之为古风化壳储集层（体）。

It is proved that the paleoweathering crust is an important reservoir (body) type of carbonate rock by means of exploration and development of many oil-and gas-bearing regions.There is enormous material to prove that the paleoweathering crust is a special geological body,and has special texture of zonation and oil-and gas-bearing characteristics,Therefore, the term, karst,can't represent the particularity as well as the whole concept of paleoweatheing crust, that should be called paleoweathering crust reservoir(body).The detailed studies of stratigraphy, mineral and rock composition, diagenesis,paleokarst, vertical texture, reservoir property, character of logging curves, seismic reflection, and oil-and gas-bearing characteristics of Lower Paleozoic paleoweathering crust reservoir(body) in Tarim basin,Renqiu oil field and Ordos region are made in this paper.