SY 5251-1991
Basic quality requirements for oil and gas exploration wells (English Version)

Standard No.

SY 5251-1991

Language

Chinese, Available in English version

Release Date

1991

Published By

能源部

Latest

SY 5251-1991

SY 5251-1991 history

• 1991 SY 5251-1991 Basic quality requirements for oil and gas exploration wells