Imaging Logging Sedimentary Facies And Reservoir Evaluation

Recently, While conventional logging technology develops to high resolution and deep investigation depth , Modern logging technology obtains unprecedented progress, for example, Imaging logging(sonic,electric ),Multipolar sonic logging,Nuclear magnetic resonance logging etc. which provides new methods to solve the geologic questions under complex condition. According to the differences of geologic demand and survey physical quantity, Imaging logging is divided into following several kinds: Electric imaging logging,Magnetic resonance imaging logging,Dipole shear logging.Contrast to conventional logging technology, the characteristic and superiority of imaging logging technology mainly display in that: l)logging information content obtains the large-scale development;2) completing logging detection for the characteristic of reservoir microscopic heterogeneity. Because logging information content which provided by imaging logging technology is unprecedented rich and conventional logging information's acquisition quality precipitately enhance let us get more freedom in expanding the use factor of logging information. Because geologic characteristic is different among different regions, the emphasis of logging appraisal also may be different, what request us to establish different series of imaging logging interpretation technology in view of different geologic characteristic of different regions.This article unifies the geologic characteristic of "changqing oil field" and logging appraisal demand, through the researching including the analysis of imaging logging's principle,technical characteristic,reflection of strata characteristics etc., has made a new progress in following five aspects:(1) Concluded the basic model of acoustoelectric imaging logging interpretation.(2) Established the basic model of sedimentary facies interpretation through using imaging logging.(3) Base on the experimental material, has determined the nuclear magnetic resonance acquisition parameter and application direction which suit to "changqing tight reservoir".(4) Established different logging appraisal and fluid identification method according to two kind of oil reservoir (edge bottom water oil reservoir,dense reservoir )of "changqing low-amplitude".(5) Done the genetic analysis of new form reservoir (high Gamma,low resistivity zone)which appeare in recent-years exploration and formed the effective identification method...