Method, device, equipment and system for predicting content of terrigenous organic carbon

Abstract

Embodiment of the invention discloses a method, device, equipment and system for predicting the content of terrigenous organic carbon. The method comprises the following steps of acquiring depositionresults of deposition simulation, wherein the deposition simulation comprises simulation based on a distribution state of terrigenous organic matters; sampling the deposition results to obtain a target sample; carrying out organic carbon content determination and particle size analysis on the target sample to obtain an analysis result which comprises particle size composition and terrigenous organic carbon content; establishing a prediction model of a terrigenous organic carbon distribution mode according to associated information among the particle size composition, the terrigenous organic carbon content and hydrodynamic conditions; and predicting terrigenous organic carbon contents corresponding to different material source distances according to the prediction model. By utilizing an embodiment of the invention, the terrigenous organic carbon content can be simply and quickly identified, so problems in prediction of terrigenous marine hydrocarbon source rock in deep water areas in the prior art are solved, and exploration efficiency is improved.

Description

technical field [0001] The embodiments of this specification belong to the technical field of geological exploration, and in particular relate to a method, device, equipment and system for predicting terrestrial organic carbon content. Background technique [0002] Sedimentary simulation experiment technology was first used by Deacon as early as 1894. So far, sedimentation simulation experiment technology has been widely used as a "forward modeling" simulation research method for reservoir research and sand body development, but it has been limited to sand body development for many years. process-related research. [0003] The research on the distribution characteristics of terrigenous organic carbon content in delta-neritic sedimentary systems mainly focuses on the study of modern estuary sedimentary systems, usually through the overall carbon stable isotope of organic matter, nitrogen stable isotope ratio, BIT (Branched and Isoprenoid Tetraether), lignin content, etc. Cha...

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Problems solved by technology

However, the result predicted by this method is usually the total organic carbon content, and the terrigenous organic carbon content is not identified separately, so it is not applicable to the current research on the prediction of source rocks in deep water exploration.

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