Method and device for judging reservoir fluid connectivity, and readable storage medium

Abstract

The invention discloses a method and device for judging reservoir fluid connectivity, and a readable storage medium. The method comprises the following steps of (1) sampling a first oil reservoir anda second oil reservoir; (2) respectively carrying out GC / MS detection on a first oil sample, a second oil sample and a third oil sample; (3) calculating the difference value of the peak area of each compound on a first total ion flow graph and a second total ion flow graph, and screening out the compound with the absolute value of the difference value being larger than a first preset value; (4) calculating a lower limit value S0 of similarity; and (5) judging the fluid connectivity of the first oil reservoir and the second oil reservoir according to the magnitude relation of the similarity S and the lower limit value S0 of similarity. The method and the device have the beneficial effects that the lower limit value of similarity is calculated according to the peak area of the characteristiccompound combination, the similarity of the characteristic compound combinations of the crude oil gas chromatography fingerprint of the other oil reservoir and the crude oil gas chromatography fingerprint of the oil reservoir is calculated, the connectivity of the two oil reservoirs is quantitatively judged, and guidance is provided for oil and gas exploitation in the early stage of oil field development.

Description

technical field [0001] The invention relates to the technical field of oil and gas development, in particular to a method, equipment and readable storage medium for judging reservoir fluid connectivity. Background technique [0002] At present, the technology of the petroleum industry is advancing by leaps and bounds, and the economic benefits have also been greatly improved. As an important strategic resource of the country, the importance of petroleum is self-evident. Reservoir connectivity research is very important for the design of oilfield early development schemes and optimal management during development. Since the 1980s, geochemical chromatographic fingerprinting has been widely used as a new method to calculate the productivity distribution of commingled production wells and to identify reservoir fluid connectivity. However, the reservoir fluid connectivity can only be judged qualitatively at present, and there is no quantitative judgment standard, so it is diffic...

AI Technical Summary

Problems solved by technology

However, at present, the fluid connectivity of reservoirs can only be judged qualitatively, and there is no quantitative judgment standard, so it is difficult to effectively guide the production and development of oilfields

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