Method and device for constructing dynamic Poisson impedance attributes

A Poisson, attribute technique, applied in the field of petroleum geophysical exploration

Active Publication Date: 2020-10-30
PETROCHINA CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above methods have been widely used in oilfield development and have achieved certain beneficial effects, but there are also limitations, especially for geological problems with rapid changes in lateral physical properties and development of vertical multi-stage cycles. It is necessary to make full use of seismic information while , strengthen comprehensive analysis of seismic logging information, and continuously improve reservoir prediction methods

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 and device for constructing dynamic Poisson impedance attributes
  • Method and device for constructing dynamic Poisson impedance attributes
  • Method and device for constructing dynamic Poisson impedance attributes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0077] In order to have a clearer understanding of the technical features, purposes and beneficial effects of the present invention, the technical solution of the present invention will be described in detail below in conjunction with the following specific examples, but it should not be construed as limiting the scope of the present invention.

[0078] figure 1 The flow chart of the method for constructing the dynamic Poisson impedance attribute provided by the embodiment of the present invention, from figure 1 It can be seen that the method includes the following specific steps:

[0079] S101: Obtain the original logging curves of the whole well section in the research area and the logging interpretation conclusion curves;

[0080] S102: Divide the original well logging curves of the whole well section and the well logging interpretation conclusion curves into three well logging curves of deep layer, middle layer and shallow layer on average;

[0081] S103: Calculate the s...

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 and device for constructing dynamic Poisson impedance attributes. The method comprises the steps of: obtaining an original logging curve and a logging interpretation conclusion curve of the whole well section of a research work area; averagely dividing the two curves into a deep logging curve, a middle logging curve and a shallow logging curve; respectively calculating a static Poisson impedance attribute curve, a hydrocarbon-containing pore curve and a fluid parameter curve with undetermined coefficients of corresponding depth sections according to the three logging curves and logging interpretation conclusion data; respectively carrying out correlation analysis on the three static Poisson impedance attribute curves with the undetermined coefficients and the hydrocarbon-containing pore curve of the corresponding depth sections to obtain the undetermined coefficient corresponding to the maximum correlation coefficient; obtaining fluid parameter average values corresponding to a deep layer, a middle layer and a shallow layer; performing linear fitting on the undetermined parameter values of the static Poisson impedance attribute curves of the deep layer, the middle layer and the shallow layer and the fluid parameter average values of the corresponding depth sections to obtain a linear relational expression; and obtaining a dynamic Poisson impedance attribute curve.

Description

technical field [0001] The invention relates to a method and device for constructing dynamic Poisson impedance attributes, belonging to the technical field of petroleum geophysical exploration. Background technique [0002] With the increasing degree of petroleum exploration and development, the difficulty of exploration targets is becoming more and more difficult, and the requirements for exploration accuracy are getting higher and higher. The conventional reservoir prediction technology based on seismic information can no longer meet the requirements of high-precision reservoir identification. Requirements, especially in continental basins, such as river channels and beach bars, which are commonly developed in continental basins, have rapid changes in lateral physical properties and development of vertical multi-stage cycles, which makes it more difficult to detect reservoir physical properties and fluids, and the exploration risk is getting higher and higher. In recent ye...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G01V1/30
CPCG01V1/307G01V1/306G01V2210/6169G01V2210/6226G01V2210/6242G01V2210/63
Inventor 王磊陈彬滔白洁杜炳毅郭维华雷明郑茜何世琦徐中华史忠生薛罗马轮史江龙
Owner PETROCHINA CO LTD
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