12042016Sun
Last updateFri, 02 Dec 2016 4pm

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Standards

High-Pressure Test Enclosures for Valve Assemblies

As drilling operations explore ever greater depths and pressures, operating pressures for new valve assemblies are going beyond traditional limits. The service-duty requirements for new valve designs push the limits of material strengths, in what can be a highly-corrosive and challenging environment. Some testing requirements may reach 50,000 psi (3450 bar) working pressure or higher, with a 1.5 safety factor. Adding to these requirements are new American Petroleum Institute recommendations for testing components under API 598, RP591 and others.


Intermediate Class Valves, the Forgotten Classification

These days, piping designers use automated systems that default to standard classifications such as pressure classes of 150 to 2500 for valves and associated equipment. The identification and use of an intermediate class would require a manual intervention by the designer, and the creation of a specific project level piping class. However, the cost savings can be significant.

Industry and Regulatory Changes in Offshore Operations

On May 13, 2016, the offshore oil and gas industry received an important safety update from the U.S. Department of Interior’s Bureau of Safety and Environmental Enforcement (BSEE). Equipment manufacturers and operators of offshore wells were informed of defective bolts located on critical safety equipment. The problem was not new—in fact, BSEE cited reports going back as far as 2003—but things had reached a critical point.

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