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

Method for detecting sleeve fluid-loss point utilizing direct-reading ultrasound flowmete

An ultrasonic and flowmeter technology, applied in the direction of measuring the acceleration and deceleration rate of fluid, using liquid/vacuum for liquid tightness measurement, measurement, etc., can solve the problems of complex process, low accuracy, low degree of intelligence, etc.

Inactive Publication Date: 2005-04-27
SINOPEC SHENGLI OILFIELD
View PDF0 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a method for detecting the leakage point of the casing by using a direct-reading ultrasonic flowmeter, which solves the complex process, low degree of intelligence, low accuracy, high cost, and the leakage of the casing in the above-mentioned prior art. low success rate

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 detecting sleeve fluid-loss point utilizing direct-reading ultrasound flowmete
  • Method for detecting sleeve fluid-loss point utilizing direct-reading ultrasound flowmete
  • Method for detecting sleeve fluid-loss point utilizing direct-reading ultrasound flowmete

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] In order to further disclose the technical solution of the present invention, the following will be described in detail through examples in conjunction with the accompanying drawings:

[0025] The invention includes a well logging vehicle, a computer, a direct-reading ultrasonic flowmeter 3 and a detection method for casing leakage points, and is characterized in that the interface of the direct-reading ultrasonic flow rate is connected to the cable 1 on the well logging vehicle through a cable connector 2 , the other end of the cable is connected with the computer interface on the logging vehicle through a slip ring, and the direct-reading ultrasonic flowmeter 3 is lowered to the upper part of the perforation section of the oil-water well formation by the logging vehicle, and the flowmeter is connected by the triangular centralizer 10 Hold on to the center of the casing 8, inject water into the well with a steady flow rate of 50 cubic meters per hour, and then lift the ...

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 detection system includes well logging truck, computer, and directly read ultrasonic flow meter. The casing leakage loss location detecting process includes connecting the directly read ultrasonic flow meter to the computer via cable joint, cable of the well logging truck and collector ring; setting the directly read ultrasonic flow meter with the cable of the well logging truck to the upper part of the perforating section inside oil-water well stratum; raising the directly read ultrasonic flow meter gradually to test the flow rate values in different depth; determining the leakage loss section of the casing based on the displayed changing flow rate data; lowering the ultrasonic flow meter to the leakage loss section of the casing and raising slowly for continuous measurement to find out the leakage loss point based on the change in flow rate.

Description

1. Technical field [0001] The invention relates to a method for detecting the leakage point of a casing by using a direct-reading ultrasonic flowmeter. 2. Background technology [0002] In the process of petroleum development, due to various reasons such as the anisotropy of underground stress and the corrosion of fluid in the well, casing deformation and casing damage will be caused, which will bring huge losses to oilfield production. Taking Chunliang Oil Production Plant as an example, there are currently 173 casing damaged wells in Chunliang Oil Production Plant, including 82 oil wells and 91 water wells, accounting for one-eighth of the total oil and water wells in the whole plant. Affect crude oil 310t / d, affect water injection 6800m 3 / d, the detection of the downhole condition of oil casing is an urgent problem to be solved. [0003] The currently used methods for detecting casing leakage points, such as well temperature method, mechanical borehole caliper method, ...

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): E21B47/00G01M3/28
Inventor 陈士军韩强陈志敏孙兆寅袁其祥
Owner SINOPEC SHENGLI OILFIELD
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