SY/T 5166-2020 in English

Core changes in the standard revision

Analysis of key technical indicators

Environmental adaptability

The instrument needs to pass 4 types of temperature zone tests (-40℃~+60℃ is the most severe), and the vibration test needs to meet the conditions of 55Hz/20m/s² for 30 minutes. It is recommended that the alpine oilfield give priority to the low temperature resistant tester.

Dynamic liquid level measurement performance

Implementation suggestions

1. Model matching: Select the corresponding temperature group according to the actual working conditions of the oil field (e.g. -40℃ version is required for extremely cold areas)
2. Periodic verification: It is recommended to conduct insulation resistance test every 6 months (＞20MΩ@500V DC)
3. Explosion-proof management: Explosive environments must use explosion-proof testers
that have passed GB 3836 certification

Standard evolution background

This standard responds to the needs of the intelligent transformation of the oil industry. The main changes are: deleting the obsolete mechanical recording requirements (Appendix AG of the 2007 version), strengthening the repeatability of the electronic acquisition system (3.4.2) and wireless transmission performance (30m distance requirement). The revision was led by companies such as Jianghan Petroleum Instruments Co., Ltd., reflecting the current development trend of downhole monitoring technology towards digitalization and explosion-proof safety.