Mineralization measuring method and system, and spreading degree measuring system
A measurement system and measurement method technology, applied in the field of stratigraphic exploration, can solve the problems of deviation of measurement results, lack of a measurement plan for the degree of spread, etc., and achieve the effect of eliminating influence and improving accuracy
Active Publication Date: 2013-09-04
PETROCHINA CO LTD
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The measurement principle of this method is based on the difference of oil and water resistivity, but because the processing method of this method is relatively simple, the measurement results have large deviations
[0006] At present, there is no perfect measure of the degree of contamination
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[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0029] First introduce the model mentioned in the present invention below, the establishment of model mainly comprises following two steps:
[0030] a. Model encapsulation. Before the experiment, it is necessary to package the electrodes and interfaces on the model, and wrap the model with a certain substance to ensure the airtightness and pressure resistance of the model;
[0031] b. Saturation of the model: use the plane model saturation system to saturate ...
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The embodiment of the invention provides a mineralization measuring method, a mineralization measuring system and a spreading degree measuring system. The spreading degree measuring system comprises a driving system, a flow velocity measuring system and the mineralization measuring system, wherein the driving system comprises an air bottle, a pressure stabilization device and an intermediate container and is used for providing stable pressure for a model; the flow velocity measuring system comprises a micro flowmeter and is used for measuring flow and flow velocity at an outlet of the model; and the mineralization measuring system is used for measuring real-time resistivity of the model and determining mineralization corresponding to the real-time resistivity according to a corresponding relationship between the mineralization and the resistivity. A resistivity value of the model of saturated water with different mineralization is measured, and the corresponding relationship between the mineralization and the resistivity is determined according to a mineralization ratio and a resistivity ratio, so that influences on a porous medium in the model are eliminated, the measurement accuracy of the mineralization is improved, and the measurement accuracy of a spreading degree is improved further.
Description
technical field [0001] The present invention relates to the technical field of stratum exploration, in particular to the displacement technology in oil exploration seepage technology, specifically a salinity measurement method, system and sweep degree measurement system. Background technique [0002] With the continuous development of oilfield technology, the existing oilfield mining technology is becoming more and more mature. In order to carry out better oilfield exploitation, it is necessary to measure the porosity and oil recovery performance of sandstone in the oilfield more accurately. Therefore, the seepage mechanism of oil exploration has been paid more and more attention. The reservoir displacement mechanism in the seepage mechanism of petroleum exploration refers to the displacement of water or oil by using oil or water at a certain flow rate under certain temperature and pressure conditions to measure the porosity of rocks and test oil recovery. performance. Cor...
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IPC IPC(8): G01N27/04
Inventor 徐轩刘学伟
Owner PETROCHINA CO LTD