Method for establishing initial model based on multi-well stratum conformation factors

An initial model and factor technology, applied in geographic modeling, geophysical measurement, seismic signal processing, etc., can solve problems such as poor applicability

Active Publication Date: 2017-10-20
CHINA PETROLEUM & CHEM CORP +1
View PDF3 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, this method only establishes a model based on a single well, and the

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 establishing initial model based on multi-well stratum conformation factors
  • Method for establishing initial model based on multi-well stratum conformation factors
  • Method for establishing initial model based on multi-well stratum conformation factors

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0049] Preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although preferred embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0050]At present, seismic information is the main body and well information is the condition. Geological models with reservoir spatial variation characteristics can only be established by relying on single wells. The present invention improves the current method of establishing a geological model with reservoir space variation characteristics based on a single well, and introduces multi-well data by adopting a normalization algorithm to dist...

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 provides a method for establishing an initial model based on multi-well stratum conformation factors. The method includes the steps of making synthesized earthquake record for each well, extracting wavelets, and calibrating layer position, solving the matching factors between well side seismic channel and logging longitudinal wave impedance, lateral wave impedance and density, obtaining stratum conformation factors, calculating the point to point distance between the earthquake record position to be solved and the positions of various well points, distributing the weight of point to point distance between the earthquake record position to be solved and the positions of various well points, applying the obtained matching factors, the stratum conformation factors and the weight coefficient to each earthquake record, and establishing the initial model of the earthquake record. Through the method, the initial model that is accurate and can satisfies the needs of real work areas can be established when the work areas are large, the number of wells is great, and the structural change of the work area is great.

Description

technical field [0001] The invention belongs to the field of geophysical exploration in the petrochemical industry, in particular, the invention relates to a method for establishing an initial model based on multi-well formation transformation factors. Background technique [0002] At present, the methods of establishing initial geological models at home and abroad are mainly based on interpolation algorithms, such as inverse distance weighting and kriging. The inversion result strongly depends on the initial model. If the initial model is not suitable, not only the convergence speed is slow, but also the number of iterations is large. At the same time, the convergence result may be far from the actual model. The method of establishing an initial geological model based on an interpolation algorithm has one thing in common, that is, in the case of few well data, the "bull's eye" phenomenon will inevitably appear; while under the condition of a single well, the initial geologi...

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): G01V1/28G01V99/00
CPCG01V1/28G01V99/005
Inventor 周单林正良须振华滕龙
Owner CHINA PETROLEUM & CHEM CORP
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