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On the Standard Revision of “Bumper Jars and Accelerators” and “Drilling String Shock Absorber”

Zhang Hongying  
Authorities such as ISO and API have no unified standard of the downhole equipments like bumper jars, accelerators and shock absorbers. Based on the comparative analysis of the relevant standards between Chinese downhole equipment and foreign ad- vanced one, it is presented that it is necessary and urgent to revise the industrial standards: SY/T 5496- 2000“Jars and Accelerators” and SY/T 6347- 1998“Drilling String Shock Absorber”so as to realize the internationalization of Chinese standards. Meanwhile, some suggestions are put forward about the revision direction to the standard, together with the predictive analysis of revised standard level.
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