With the geology, seismic and well log data, the strata erosion thickness, original sedimentary thickness, basin boundary, depositional facies distribution and basin type of Jurassic-Late Cretaceous basin prototype in Linqing Depression is restored and analyzed.
Analysis of petroleum system in the composite petroliferous basin must be integrated with analyses on the basin evolution, multicycle tectonic-sedimentation the basin underwent and basin type, heat mechanism of hydrocarbon forming, and geological elements of petroleum system, clearly indicating the distribution and evolution of each petroleum system in the basin.
The geological model of a sedimentary basin is constructed by 1) determining basin type in terms of global plate theory,2) comprehensively analysing the basin with the use of geological data and various geophysical data and 3) defining genera- tion and evolution pattern of the basin with the aid of modeling technique.
Since Lower Devonian to Middle Permian Maokou period, the Hercynian movements which relied on extension motion began in the south China plate and Sanjiang tectonic area in the west of south China Plate, the deposition and the tectonic evolution of south China had characters of passive continental margin, which was characterized by intracontinental rift basin to passive continental margin rift basin for the basin type.
Based on analysis of fault basin types and their characteristics of secondary structures, the types of hydrocarbon accumulation and their distribution in time and space were summarized, and four models for hydrocarbon reserviors in fault basins were suggested.
This article lays particular emphasis on macroscopic control factors, it put emphasis on the effects that regional tectonic background, tectonic types of basin and water give diagenesis of sandstones. It expresses that further searching the relationship between diagenesis and the type of basin as well as regional,tectonic setting the studyies of diagenetic mineral facies by means of equilibrium thermodynamics or solution—mineral equilibrium face a complex task of diagenetic research.
The extensional basin is an important basin style and has been carefully studied by people The quantitative dynamics and modeling is a kind of methods in basin analysis The paper briefly introduces ① the subsidence mechanism of extensional basin.
Bohai Bay basin, a typical extensional rift basin, and Ordos basin, an intra-craton down-warped basin, represent two important basin types in China.
This paper also summarizes the lake basin types, and introduces their facies associations, source potential and organic geochemical features.
From the evidence of Kiel Bay, at least in these semi-enclosed basin types, it is during major transgressions that maximum deposition in adjacent basins occurs, due to the sea eroding weakly consolidated and weathered surface regolith.
Eight lake groups are distinguished, tectonic-denudation, glacial, chemical, fluvial, coastal (neotectonic), telmatogenic, cosmogenic and artificial, containing 13 subgroups and 19 basin types.
Figure 6.4 classifies the basin types in terms of the degree of sediment compaction over the life of the basin and fluid flow type.