Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for dividing and sticking horizons by using X-ray fluorescence spectral characteristics of rock debris

A fluorescence spectrum and X-ray technology, applied in the field of oil and gas exploration and development, can solve the problems of multi-component interpretation of rock cuttings that cannot be mixed, low accuracy of artificial analysis and judgment, and influence on lithology interpretation results, so as to increase the means of lithology interpretation , low cost and high accuracy

Inactive Publication Date: 2016-11-16
CHINA NAT PETROLEUM CORP CHUANQING DRILLING ENG CO LTD
View PDF7 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. The technical level of on-site lithology appraisal personnel seriously affects the lithology interpretation results
[0006] 2. Existing auxiliary tools for lithology identification such as carbonate rock analyzer and stereo microscope cannot perform multi-component interpretation of mixed cuttings
[0007] 3. Existing methods are difficult to comprehensively interpret cuttings under new drilling technology and new process conditions, and the accuracy of human analysis and judgment is not high

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
  • Method for dividing and sticking horizons by using X-ray fluorescence spectral characteristics of rock debris

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] As the best implementation mode of the present invention, it discloses a method for delamination and jamming using the X-ray fluorescence spectrum characteristics of cuttings, the steps of which are as follows:

[0035] a. Familiar with the regional stratum characteristics and stratum division standards of the work area;

[0036] b. Determine the sign layer or auxiliary sign layer of the layered card layer;

[0037] c. Determine the characteristic elements of different lithologies;

[0038] d. Establish an XRF profile model in the work area;

[0039] e. Using the XRF spectrum features of cuttings to carry out lithological horizon homing;

[0040] f. Draw the cuttings XRF profile according to the cuttings XRF data of the analyzed well section;

[0041] g. Using different lithological feature element curve feature method, curve intersection method, element ratio method, and feature element method to divide layers.

[0042] The step a is specifically to collect mud log...

Embodiment 2

[0050] Refer to the attached figure 1 Well MX009-X2 is located at the west high point of the Moxi structure, a highly deviated development well targeting the Longwangmiao Formation, adjacent to Wells MX9, MX12, MX13, and MX20. The design requires entering the Longwangmiao Formation 20m ( Vertical thickness 3m) and 7″ casing cementing. Affected by the Caledonian movement, the area where the well is located has uneven denudation of the Cambrian, the Xixiangchi Formation is generally missing, and the denudation has been partially denuded to the bottom of the Gaotai Formation. Therefore, in the new drilling Under the new technical conditions, the uncertainty of the denudation degree of the Cambrian in this well is the difficulty of cementing stuck layers in the Longwangmiao Formation.

[0051] Invention patent implementation steps

[0052] 1. Familiar with regional stratigraphic characteristics and stratification standards.

[0053] The formations involved in cementing stuck lay...

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 method for dividing and sticking horizons by using X-ray fluorescence spectral characteristics of rock debris. The method comprises the following steps: a, familiarizing stratigraphic characteristics of a working area and division standards of stratum; b, determining a marker bed or an auxiliary marker bed for dividing and sticking horizons; c, determining characteristic elements with different lithologies; d, establishing an XRF (X-ray Fluorescence) section model in the working area; e, performing lithological horizon homing by using XRF spectral characteristics of the rock debris; f, drawing an XRF profile map of the rock debris according to analyzed XRF data of the rock debris at a well section; g, dividing horizons by using a curve characteristic method of characteristic elements with different lithologies, a curve intersection method, an element ratio method and a characteristic element method. According to the method, the conditions that a new drilling process and a new drilling technology limit an existing lithology identification technology and affect drilling fluid materials are avoided, change characteristics of formulation lithology can be objectively and accurately reflected, and microscopic verification and quantification of the lithologic interpretation are realized.

Description

technical field [0001] The invention relates to the technical field of petroleum and natural gas exploration and development, in particular to a method for layering and jamming by using the X-ray fluorescence spectrum characteristics of cuttings. Background technique [0002] The existing lithology identification technology mainly relies on artificial naked eyes supplemented by tools such as carbonate rock analyzers and stereo microscopes. However, under the conditions of extensive application of new drilling technologies and techniques, the color and structure of cuttings are almost In addition, the existing lithology identification technology is facing severe challenges due to the mixed cuttings, especially the thin-bed landmark lithology is not easy to find, which brings difficulties to the mud logging delamination work. [0003] It is well known that different substances are composed of different elements. In the same way, different rocks and rocks in different depositi...

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): G01N23/223G01V5/04
CPCG01N23/223G01V5/045
Inventor 李立杨廷红罗谋兵魏建强
Owner CHINA NAT PETROLEUM CORP CHUANQING DRILLING ENG CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com