Mapping series and technical method for construction of continental sequence stratigraphic framework

Abstract

The invention provides a map series and technical method for construction of a continental sequence stratigraphic framework. The method includes the specific steps that in the aspect of 'points', drilling data is given priority to, and a single-well analysis map series and a mapping method are determined; in the aspect of 'lines', based on a connecting-well profile and a seismic profile, a map series and mapping method of the 'lines' are determined; based on research results of 'points and lines', according to a plane figure, a map series of 'surfaces' is determined; by means of a three-dimensional data body, through the combination with sequence stratigraphic 'body' research, a map series and mapping method of the 'body' are determined; by means of time data, based on the spatio-temporal evolution of sequence stratigraphy, a map series and technical method of the sequence stratigraphic 'body' are determined, and finally a sequence stratigraphic framework drawing is formed. By means of the method, mapping is started, a standard industrial drawing is formed, the map series and technical method can be directly used for guiding oil and gas exploration, the application effect of research results is improved, exploration risks are avoided, and exploration costs are reduced.

Description

technical field [0001] The invention relates to a mapping series and a technical method related to the construction of a continental sequence stratigraphic framework, and belongs to the field of geological exploration. Background technique [0002] After being introduced into my country, sequence stratigraphy has been directly applied to the field of oil and gas exploration in continental lacustrine basins. Thanks to the unremitting efforts of Chinese geologists, its theory has become the most important basic work and means for searching for energy resources in continental lacustrine basins, and has achieved great success. During the application process of production practice, a variety of views and opinions have also been triggered, and a situation of contention among a hundred schools of thought has emerged, and different schools of thought have emerged. In the application of various theories, due to the differences in theoretical systems and technical routes , and also caus...

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Problems solved by technology

[0002] After being introduced into my country, sequence stratigraphy has been directly applied to the field of oil and gas exploration in continental lacustrine basins. Thanks to the unremitting efforts of Chinese geologists, its theory has become the most important basic work and means for searching for energy resources in continental lacustrine basins, and has achieved great success. During the application process of production practice, a variety of views and opinions have also been triggered, and a situation of contention among a hundred schools of thought has emerged, and different schools of thought have emerged. In the application of various theories, due to the differences in theoretical systems and technical routes , and also caused the inconsistency of the sequence stratigraphy mapping series and mapping standards of various schools of thought. This messy phenomenon caused information confusion or lack of information, which seriously restricted the application and promotion of sequence stratigraphy.

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