Submarine Hydrocarbon Seepage Simulation Experimental Device and Experimental Method

Abstract

The invention aims at providing a seabed hydrocarbon leakage simulation experiment device and an experiment method thereof. The seabed hydrocarbon leakage simulation experiment device can simulate the seabed environment and can simulate hydrocarbon leakage. An experiment cabin is arranged in a support, the experiment cabin is connected with a measuring and controlling instrument box, the measuring and controlling instrument box is connected with a gas source, and the experiment cabin is a cylindrical cabin body. The experiment cabin sequentially comprises a water cabin body, a sediment cabin body, a rock cabin body and a gas injecting cabin body from top to bottom, wherein the cabin bodies are in sealed connection, a sealing cover is arranged at the upper end of the experiment cabin, and a sealed casing of the gas injecting cabin body is arranged at the lower end of the experiment cabin. Sensors are arranged at the two ends of the experiment cabin, the sensors are connected with the measuring and controlling instrument box, a gas injecting pipe is arranged on the lower side of the sealed casing of the gas injecting cabin body, the gas injecting pipe is connected with the gas source through the measuring and controlling instrument box, and a lateral wall penetrating through the sediment cabin body and the gas injecting cabin body is in sealed connection with a sample collecting assembly. The seabed hydrocarbon leakage simulation experiment device can simulate the real environment of seabed hydrocarbon leakage based on the sea environment, is applied to marine hydrocarbon exploitation and development and is also applied to research on marine ecological environment quality evaluation.

Description

technical field [0001] The invention relates to the technical field of marine oil and gas earth exploration, in particular to the field of research on simulating seabed hydrocarbon seepage, and specifically relates to a seabed hydrocarbon simulation experiment device and an experiment method thereof. Background technique [0002] Under the action of various driving forces, the hydrocarbons in the seabed oil and gas reservoirs can penetrate the overlying strata to slowly and continuously leak to the seabed surface and can be detected by modern analytical instruments. This is the theory of marine oil and gas geochemical exploration. Base. Seabed hydrocarbon seepage represents the migration of deep oil and gas from source areas, reservoirs and traps to the seabed surface, and belongs to the category of oil and gas migration. This submarine hydrocarbon seepage can be accompanied by the primary and secondary migration of oil and gas, or it can be the third migration from the tra...

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Problems solved by technology

[0003] Although the simulation experiments on land hydrocarbons have been carried out in the prior art, for example, in the patent document with the publication number CN101726559B, a simulation experiment device is provided for land hydrocarbon micro-seepage, which provides relevant information for land hydrocarbon micro-seepage. However, for the seabed that also has a large number of hydrocarbon seepages (including macro-seepage and micro-seepage), the existing technology does not provide a good seabed hydrocarbon that can provide data support for marine oil and gas geochemical exploration. Leakage simulation experimental device and experimental method, so a technical solution is urgently needed to solve this technical problem

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