Method and device for imaging adjoining well by acoustic logging and storage medium

A sonic and logging technology, applied in wellbore/well components, surveying, earth-moving drilling, etc., can solve problems such as difficulty in judgment

Active Publication Date: 2020-09-22
CHINA OILFIELD SERVICES
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantage of this method is that it utilizes the energy of the vibration of the drill bit during the drilling process, but it has the following problems. For example, the downhole sound source generated during the drilling process is not only the collision between the drill bit and the well wall or rock, but also the drill collar. , Th

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 imaging adjoining well by acoustic logging and storage medium
  • Method and device for imaging adjoining well by acoustic logging and storage medium
  • Method and device for imaging adjoining well by acoustic logging and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0074] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0075] The steps shown in the flowcharts of the figures may be performed in a computer system, such as a set of computer-executable instructions. Also, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0076] The basic principle of using acoustic logging to image adjacent wells is as follows:

[0077] The basic principle of using acoustic logging to image adjacent wells is as follows: figure 1 As shown, in the drilled well, that is, the measurement wel...

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 embodiment of the invention discloses a method and device for imaging an adjoining well by acoustic logging. The method comprises the following steps of collecting dipole longitudinal wave data infour orientations when a dipole sound source is excitated, wherein the dipole sound source is in an orthogonal dipole mode; obtaining dipole longitudinal wave data in a plurality of geographic orientations through vector rotation according to the collected dipole longitudinal wave data in four orientations; carrying out deconvolution filtering processing on the obtained dipole longitudinal wave data in each orientation to obtain filtered sound wave data; carrying out wave field separation on the filtered sound wave data to obtain separated upstream reflective longitudinal wave data and downstream reflective longitudinal wave data; carrying out migration imaging processing on the upstream reflective longitudinal wave data and the downstream reflective longitudinal wave data obtained by separating the wave field in each geographic orientation to obtain imaging data of a borehole of the adjoining well. According to the scheme, the adjoining well can be imaged by means of acoustic logging.

Description

technical field [0001] The invention relates to the field of well logging, in particular to a method, device and storage medium for imaging adjacent wells by using acoustic logging. Background technique [0002] The use of sidetracking wells to develop low-permeability oil and gas fields can reduce drilling costs and increase oil and gas well production. However, during the construction of sidetracking wells, two adjacent wellbores will collide due to various reasons, which will inevitably bring huge costs. Economic losses. Conventionally adopted wellbore anti-collision methods need to shut down production wells with anti-collision risks, re-log the wellbore trajectory after reducing production, which will put a lot of pressure on the production of the platform, and may even cause the old wells to fail to start the pump again Serious impact; for self-flowing wells, the cost and difficulty of retesting are very high. [0003] The conventional wellbore anti-collision technol...

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): E21B47/14E21B47/002
CPCE21B47/14Y02A90/30
Inventor 刘峰张聪慧张彬奇孙小芳庹海洋李东孙晓飞张璋张博韩东东
Owner CHINA OILFIELD SERVICES
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