Comprehensive interpretation and evaluation method of hydrocarbon reservoir including data mining

Abstract

The invention discloses a comprehensive interpretation and evaluation method of a hydrocarbon reservoir including data mining. The comprehensive interpretation and evaluation method is characterized by comprising the steps of: carrying out basic data arrangement on a system by static and dynamic databases of an existing large single well of each petroleum unit; standardizing a logging curve; integrating each specialized knowledge and method of well drilling, well logging, logging, geology and mathematics on the basis of automatic layering; processing automated tiered single layer by regions, positions, lithology (except for lithological modelling) and thicknesses; automatically modeling by a data mining tool and researching a data artificial modeling model according to a theory or four-property relationship; carrying out interpretation and evaluation from the lithology, the physical property and oiliness to the capacity; giving the credibility according to the according degree of an unknown sample and the model, and segmenting by layers by crossed and parallel application of a plurality of methods, and difference factors such as the regions, positions, lithology, physical properties and thicknesses. Therefore, the interpretation and evaluation accuracy of the hydrocarbon reservoir is effectively improved by comparing and validating the plurality of methods; the interpretation reliability of a difficult layer is further improved by man-machine interaction interpretation, and the comprehensive interpretation and evaluation method can be widely popularized.

Description

technical field [0001] The invention relates to a data mining method and oil and gas reservoir interpretation and evaluation for oil and gas exploration and development in the petroleum industry. Background technique [0002] There are different oil and gas layer interpretation and evaluation methods for cuttings logging, borehole wall coring, drilling coring, gas logging, mud logging, logging interpretation, geological research, etc., as well as geostatistical interpretation and evaluation methods , and the method of oil and gas reservoir interpretation and evaluation using data mining from massive databases is also being explored. However, each method has its own advantages and disadvantages, and its interpretation and evaluation conclusions often have a large gap with the actual situation. For example, various crossplot and linear regression methods are used in well log interpretation, which cannot meet the needs of oil and gas layer interpretation and evaluation in comp...

AI Technical Summary

Problems solved by technology

[0005] There is no method for cuttings logging, wellbore coring, drilling coring, gas logging, mud logging, logging, geological research and data mining to interpret and evaluate oil and gas reservoirs

Images