SY/T 6492-2020 in English

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Standard No:	SY/T 6492-2020
Document status:	VALID
Title in English:	Technical specification for verification of sonic logging tool
Title in Chinese:	声速测井仪核实技术规范
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2020-10-23
Implemented on:	2021-02-01
Superseding:	SY/T 5880.4-1995 Petroleum Logging Tool Calibration - Acoustic Velocity Logger SY/T 6492-2000 Specification for acoustic logging calibration device
Professional Classification:	SY-Oil & Gas
Related Topics:	Logging Sound velocity meter verify speed of sound For speed measuring instruments Nuclear Power Instrument nuclear tester Experimental Technology Instruments Measured and measured technical regulations Nuclear Detection Technology Laboratory Is the speed measuring instrument practical? Anemometer Technical Specifications Instrumentation technical specifications and procedures Sound Velocity Calibration Specification Sound Velocity Profiler National standard specifications for anemometers iso 6492 sy/t 7494-2020 sy/t 7466-2020 sy/t 7468-2020

Introduction

Background of Standard Revision and Technological Evolution

SY/T 6492-2020 integrates the two old standards SY/T 5880.4-1995 and SY/T 6492-2000. The main technical changes include:

Revision dimensions	1995/2000 version	2020 version
Standard Name	《Calibration of Sonic Velocity Logging Instruments for Petroleum Logging Instruments》	《Technical Specifications for Verification of Sonic Velocity Logging Instruments》
Technical Requirements	Including workshop calibration requirements	Delete the workshop scale and strengthen on-site verification
Error control	No clear standard value	Added Chapter 5 Verification of standard values and errors

Standard requirementsSonic logging instrument The verification device must use:

The operating environment must meet the following requirements: Liquid temperature ≤50℃ and no strong electromagnetic interference within 3m

When Poisson's ratio γ=0.27, calculate by the formula:

v_p/v_s = 1.076 → Measured time difference range 181-187μs/m

Normal instruments should be verified every 180 days and re-verified immediately after replacing core components

More samples: GB 18306-2015 QC/T 942-2021 YD/T 3934-2021

Sample only — not a preview of SY/T 6492-2020

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