The Inversion Calculation Of Pore Liquid Medium Of The Components In The Value Parameter

In the development of modern gas and oil exploration, the seismic exploration occupied a very important position. Most work of medium component of the classical theories is to study the introduction of single-phase. However, regardless of sandstone reservoir or carbonate reservoir, the component are the solid and liquid two parts, solid and liquid phase of the pair even more than double-phase medium content. So it needs further introduction of a model for both in theory and practice to conduct research and more accurate to reveal actual elastic characteristics of the composition, and extract and research the properties of the skeleton solid and pore liquid.A porous medium of the fluid is an important model of rock medium, and it can be considered by the rock particles in solid medium and liquid medium that filled in the porous medium. For the research of the porous liquid medium, the key question is trying to find more reasonable effective way to put the skeleton solid and porous fluid two local compositions together to formulate the elastic characteristics of overall medium. In this research, so many scholars have excellent results.Based on components of pore liquid medium model and its components equation, professor Binhua Niu made so many thoroughgoing researches and formulating works, he converts the pore the model of the critical density of the shear modulus, the size and the cut modulus components equation to valuable data of the density, transverse waves and the compression waves of using pore velocity of linear equations, then gets numerical computation method for the content of a parameter value of porous liquid medium.This research based on the numerical computation method of porous medium fluids in elastic parameter proposed by professer Binhua Niu, with the actual mapping data of the rock samples which written in DeHua Han’s published dissertation in 1986,made inversion calculation of the rock samples data, extracted the composition and the elastic parameter information. HAN rock samples are a porous medium. Their solids skeleton is a composite skeleton which consists of quartz and clay.Firstly, divide a group of samples, to each of these samples combinations, make the least square method inversion calculation by using of components elastic parameter value formula, and then get the local skeleton and flow of elastic parameter information. Secondly, analyze the group of the many groups elastic parameter statistical, and select the main peak’s corresponding characteristic value for estimating the elastic parameter, and then get the components elastic parameter of each sampling rock. At last, with the linear inversion calculation of the component skeleton, using the inversion calculation progress, and then get the elastic parameter information of the quartz and clay from the component skeleton. Thus, we realized the HAN rock samples’content information extraction.After estimate the parameter data’s reasonable and accurate, then check the rationality and effectiveness of the inversion calculation method of the elastic parameter value in porous medium fluids. The successful validation of the method, and the application in actual seismic exploration, has great significance in the gas and oil exploration.