Chang 6, Chang 8 Oil Test Research In Xunyi Area

Reservoir test is one of the most important work in the development of oil field. Through reservoir test to understand the formation, the calculation of reserves, the preparation of the development plan and determine the development method to provide the basis.Xunyi drilling data proved the oil and gas display rich in this exploration area, and the oil-bearing section, exploration prospects pfrom good. Up to now, all kinds of exploration wells drilled more than 40 ports, oil flow through reservoir test is eligible for 8 wells. Due to the low level of exploration area, many geological problems not yet been clarified, exploration work has not yet achieved a major breakthrough. Such as oil and gas enrichment law, basic geological characteristics of the reservoir and low porosity and permeability reservoirs transformation and other issues restricts the area of oil and gas exploration and development process, therefore an urgent need to develop a reasonable program for the reservoir test.This paper is based on research of geological Xunyi exploration area, combined Xunyi exploration area exploration and development of the information collected and analyzed profiles and geological characteristics of the oil exploration and development area.Through the interior core of the geological study, a comprehensive understanding of the extended Chang6, Chang8 reservoir petrophysical properties of rocks and the type,occurrence,distribution,content of sensitivity minerals.Determine the reservoir potential damage type, extent and causes, to implement the formation fluid physical properties. Through optimization of compatibility of fracturing fluid and formation, combined with Yanchang 6, Chang 8 reservoir geological study, optimized selection fracturing fluid. According to the features of reservoir test, production test, choose more than 30 test fracturing wells analysis electrical characteristics, combined with the drilling data using three-dimensional fracture simulation software suitable for different thickness, different physical properties of reservoir fracturing mode. Chose 7 wells,8 formations fracturing oil test test proposal, prepared 8 formations fracturing optimization, to develop a reasonable program for the reservoir test.