Sandbody-unconformity-fault transport system experimental device and method for controlling oil migration

Abstract

The invention relates to a sand body-unconformity surface-fault conducting system oil control transport experiment device and experiment method. The experiment device includes a simulator provided with a fluid injection port and a fluid output port, and a fluid injection port pressure control system connected with the fluid injection port of the simulator; the simulator includes a bottom sand box and a side sand box located at the end part of the bottom sand box, the bottom sand box is movably connected with the side sand box, the bottom sand box and the side sand box are respectively provided with slot boards freely sliding on the sand boxes, and an inserting board with a cavity is inserted between the slot board of the bottom sand box and the slot board of the side sand box. An oil gas transport and accumulation process in a sand body-unconformity surface-fault conducting body space mode is simulated, rules and control factors affecting transport and accumulation of oil gas along the sand body-unconformity surface-fault conducting body are analyzed, understanding of cause of oil gas accumulation and oil gas distribution rule is deepened, a basis is provided for oil gas exploration of oil gas containing basins, and at the same time, a service is well provided for experimental teaching.

Description

technical field [0001] The invention relates to an experimental device and an experimental method for oil and gas migration and accumulation, in particular to a physical simulation experimental device and an experimental method for controlling oil migration in a sand body-unconformity surface-fault transport system. It is a physical simulation method that traces the sand body-unconformity surface-fault-controlled oil migration path and migration process. Background technique [0002] After the initial migration and expulsion of hydrocarbons from the source rock, oil and gas enter the trap through secondary migration in the migration channel in the process before entering the trap. These main migration channels include transport layers (high porosity and permeability sand bodies), unconformity surfaces, faults and combinations of these three types. [0003] Sand bodies are the most basic and most important migration channels for oil and gas migration in basins. Sand body is...

AI Technical Summary

Problems solved by technology

[0011] The existing physical simulations of oil and gas migration and accumulation mechanisms are basically carried out in a large sandbox. Different geological models are constructed in the sandbox to simulate or verify the laws of oil and gas migration and accumulation in a certain area. Specially designed for the physical model design of formation sand body-unconformity surface-fault oil and gas migration, and the experiment of researching formation sand body-unconformity surface-fault oil control mechanism by changing the spatial configuration of formation sand body-unconformity surface-fault Apparatus and Experimental Method

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