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

Shale graptolite zone division model establishing method and shale graptolite zone dividing method

A model building and graptolite technology, applied in the field of shale formation division, can solve the problem that the graptolite belt cannot be accurately divided, and achieve the effect of accurate division results

Active Publication Date: 2020-02-28
BC P INC CHINA NAT PETROLEUM CORP +1
View PDF15 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing graptolite zone division method is based on core description and natural gamma ray curve feature division
Graptolite belts with uncored wells and indistinct natural gamma ray curves cannot be accurately divided

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
  • Shale graptolite zone division model establishing method and shale graptolite zone dividing method
  • Shale graptolite zone division model establishing method and shale graptolite zone dividing method
  • Shale graptolite zone division model establishing method and shale graptolite zone dividing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0022] In the following description, the use of suffixes such as “module”, “part” or “unit” used to indicate elements is only for facilitating the description of the present invention, and has no specific meaning in itself. Therefore, "module", "part" or "unit" can be used in a mixed manner.

[0023] In this example, based on core observations, the graptolite zones are divided by characteristic graptolites; the logging response characteristics of different graptolite zones are analyzed, and the logging curves sensitive to the graptolite zones are optimized; the characteristics of the graptolite zones and each log curve are established The relationship is used as the division model of graptolite zone; the graptolite zone is divided into uncorked wells using the graptolite zone division model. This embodiment is parti...

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 relates to a shale graptolite zone division model establishing method and a shale graptolite zone dividing method. The establishing method comprises the steps: carrying out graptolite zone division on a key well based on the characteristic graptolite of the key well, and obtaining the graptolite zone contained in the key well and the position depth of the boundary of the graptolite zone; enabling logging curves of the key well to correspond to the positions and depths of the graptolite zone and the boundary of the graptolite zone according to depths; analyzing characteristic change of the logging curves at the boundary of the graptolite zone, and selecting logging curves for a graptolite zone division model; and enabling the positions and depths of the graptolite zone and theboundary of the graptolite zone to corresponding to the logging curves of the graptolite zone division model according to the depth, and thus, obtaining the shale graptolite zone division model. Theshale graptolite zone dividing method is used to divide the graptolite zone of an uncored well. Thus, the uncored well is divided, and the problem that the graptolite zone with unobvious natural gammacurve characteristics cannot be accurately divided is solved.

Description

Technical field [0001] This application relates to the field of shale strata division, and in particular to a method for establishing a shale graptolite zone division model and a shale graptolite zone division method. Background technique [0002] Shale gas refers to the accumulation of natural gas mainly located in dark mud shale or high-carbon mud shale, with adsorption or free state as the main way of existence. Determining the main strata based on the results of shale strata division is the key work of geological research in the early stage of shale gas development. There are development of graptolite biofossils in marine shale formations, and different graptolite biotypes correspond to different strata ages. In this way, the iconic graptolite types of the formation are determined, and the graptolite fossils in the core can be observed according to the core of the coring well. Strata. [0003] However, the existing graptolite zone division method is based on the core descript...

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): G01V99/00G01V11/00
CPCG01V11/00G01V20/00
Inventor 曾番惠王国勇魏斌王中兴李明波熊小林王楠卢亚亚赵会民
Owner BC P INC CHINA NAT PETROLEUM CORP
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