Analysis method for rock induced polarization spectrum for solving permeability

A technology of induced polarization and permeability, which is applied in the field of rock induced polarization spectrum analysis to obtain permeability, which can solve the problems of weak measurement attenuation, low accuracy, and high logging cost, and achieve large signal amplitude and high accuracy. , the effect of high signal-to-noise ratio
CN1244823CInactive Publication Date: 2006-03-08BC P INC CHINA NAT PETROLEUM CORP +1
0 Cites 2 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BC P INC CHINA NAT PETROLEUM CORP
Publication Date
2006-03-08
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

This invention relates to an induced polarization spectrum analysis method for acquiring penetration rate of rock. The characteristics are the following: to gather induced polarization weakening spectrum down-well and get induced polarization relax time spectrum through multiple index weakening match; then to calculate the geometric average and arithmetic average of relax time and ground penetration rate curve with materials of porosity logging and experiment constants. It is with low well logging cost, large signal range, high signal-to-noise ratio and long weakening time and high accuracy of polarization ratio measuring.
Need to check novelty before this filing date? Find Prior Art

Description

Technical field:

[0001] The invention relates to an induced polarization spectrum logging method and an interpretation method thereof, in particular to a rock induced polarization spectrum analysis method for obtaining permeability. Background technique:

[0002] There are relatively mature logging techniques and interpretation methods for the measurement and evaluation of reservoir porosity, but in determining the permeability, the dominant factor determining the permeability is the reservoir pore structure, and the complexity of the pore structure is extremely serious. Due to the heterogeneity, the permeability logging technology and interpretation methods have not made much progress. At present, laboratory measurement and on-site NMR logging are mainly used. It is difficult to reproduce the formation conditions in the laboratory measurement, and the core will be produced during the coring process. Necessary cracks, these all cause great errors in the measurement of permea...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More