Metamorphic rock lithology identification method

A technology for lithology identification and metamorphic rock, which is applied in the field of logging interpretation and can solve the problems of no discrimination criteria and no consideration of the relationship between metamorphic rocks and so on.

Inactive Publication Date: 2013-01-02
CNPC GREATWALL DRILLING ENG
View PDF2 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is relatively simple, does not consider the relationship between the main structural minerals in metamorphic rocks, and has no certain criteria for discrimination

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Metamorphic rock lithology identification method
  • Metamorphic rock lithology identification method
  • Metamorphic rock lithology identification method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] The present invention will be further described below in conjunction with accompanying drawing:

[0012] Such as figure 1 Shown, the present invention is a kind of metamorphic rock lithology identification method, it is characterized in that: comprise the following steps:

[0013] (1) Use the M-N value of the logging response of the main components of metamorphic rocks to make an M-N intersection chart and analyze the metamorphic rock series;

[0014] (2) Calculate the M-N value from the log curve value, and make a crossplot with this value in the metamorphic rock section, and compare it with the chart; the formula for calculating the M-N value is:

[0015] M = 0.01 ( Δt f - Δt ρ b - ρ ...

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

PUM

No PUM Login to view more

Abstract

The invention discloses a metamorphic rock lithology identification method, and relates to the field of log interpretation. The method is as follows: a relationship of a metamorphic rock type and main component minerals can be studied based on logging responses of the main component minerals composed of metamorphic rocks, thus identifying the metamorphic rock lithology. With the adoption of the metamorphic rock lithology identification method, the insufficient that like products do not have certain distiguishment stardards in the prior art is overcome, and the metamorphic rock lithology identification method is simple and effective, has a wide application range, has an important significance on evaluating a metamorphic rock reservoir and is suitable for metamorphic rocks in all regions.

Description

technical field [0001] The invention relates to the field of logging interpretation, in particular to a metamorphic rock lithology identification method. Background technique [0002] The material composition and origin of metamorphic rocks are more complex than those of igneous rocks and sedimentary rocks, which have brought great difficulties to the classification of metamorphic rocks. At present, the widely used classification scheme is isochemical series metamorphic rocks formed according to different protolith types (in metamorphic rocks, all metamorphic rocks with the same original chemical composition but different mineral paragenesis combinations are called isochemical series). At present, similar products on the market generally use neutron-density crossplots or crossplots of other logging curves, which directly use the values ​​of neutron, density, or other logging curves to make crossplots of metamorphic rock intervals. Different lithologies are distinguished by ...

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

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01V11/00
Inventor 尤征
Owner CNPC GREATWALL DRILLING ENG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap