Evaluating method for compressibility of shale reservoir

A shale reservoir and evaluation method technology, which is applied in the direction of earthwork drilling, production fluid, wellbore/well components, etc., can solve the problems of evaluation system deviation and inability to quantitatively evaluate shale reservoirs, etc.
CN110714753APending Publication Date: 2020-01-21HUANENG CLEAN ENERGY RES INST
8 Cites 23 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HUANENG CLEAN ENERGY RES INST
Publication Date
2020-01-21

Smart Images

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

Abstract

The invention provides an evaluating method for compressibility of a shale reservoir. The evaluating method comprises the following steps that standardized treatment is conducted on the parameter values of the five factors with different units and different dimensions influencing the compressibility of the shale reservoir by adopting range transformation or empirical assignment to obtain standardized values, wherein the five factors comprise the brittleness index, the brittle mineral content, the natural weak surface, the ground stress difference coefficient and the rock formation effect, theinfluencing weight of the five factors on the compressibility of the shale reservoir is determined by adopting an analytic hierarchy process to obtain the weight coefficient, weighting processing is conducted on the obtained standardized values and the weight coefficient to obtain the compressibility coefficient of the shale reservoir, and evaluating is conducted on the compressibility of the shale reservoir by using the obtained compressibility coefficient. By means of the evaluating method, whether the shale reservoir can be pressurized can be evaluated quantitatively, and an idea and methodare provided for the quantitative evaluation of the compressibility.
Need to check novelty before this filing date? Find Prior Art

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