Method of determining oil and gas productivity based on oil and gas control effects of petrophysical facies

Abstract

The invention discloses a method of determining oil and gas productivity based on oil and gas control effects of petrophysical facies, the method comprising obtaining reservoir physical property characteristic parameters, including porosity [phi], permeability K and single well production h reflecting the oil and gas productivity of a reservoir, of each exploration point in a research area through analysis; based on the obtained reservoir property characteristic parameters [phi] and K through analysis, and under the correction of actual [phi] and K of a single well in geophysical logging, establishing a reservoir property plane distribution diagram; based on the obtained reservoir property characteristic parameters [phi], K and h through analysis, establishing a relationship graph among [phi], K and h; based on the relationship graph among [phi], K and h, conducting quantitative standardization on petrophysical facies data of the reservoir, establishing a board chart of standardized values FI and h of the petrophysical facies, and conducting verification and feasibility analysis on the board chart of FI with h; and based on the reservoir property plane distribution diagram, and with combination of the board chart of FI with h, determining the oil and gas productivity of each exploration point of the reservoir so as to determine the oil and gas productivity of the entire research area. The method provided by the invention solves the problem of difficulty in predicting the oil and gas productivity of reservoirs, and provides important technical support for reservoir oil and gas research.

Description

technical field [0001] The invention relates to the technical field of quantitative prediction of oil and gas production capacity, in particular to a method for determining oil and gas production capacity based on petrophysical facies controlling oil and gas interaction. Background technique [0002] In the exploration and development of oil and gas, the law of oil and gas enrichment in the study area, the oil and gas of the target layer and the oil and gas production capacity of the reservoir have always been the issues that people are concerned about. The analysis of the main controlling factors of the oil and gas of the target layer and the quantitative study of the oil and gas productivity of the reservoir are directly related to the success rate of oil and gas exploration. However, due to the complexity of geological conditions and the uncertainty of accumulation conditions, the quantitative research on oil and gas has been slow, and it has become an urgent problem to b...

AI Technical Summary

Problems solved by technology

[0006] Embodiments of the present invention provide a method for determining oil and gas production capacity based on petrophysical facies-controlled oil-gas interaction to solve the problem of difficult prediction of oil and gas production capacity in reservoirs. The method includes:

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