(64f) Case Study of Relief Analysis of Compressor Stations

Case Study of Relief Analysis of Compressor Stations

Kumud
Chaurasia, Process
Engineer

Aniket
Patankar, Senior
Process Engineer

Lloyd's Register
Energy Americas, Inc.

1330 Enclave
Parkway, Suite 200, Houston, TX 77077, USA

kumud.chaurasia@lr.org, aniket.patankar@lr.org

Abstract

A compressor station is a
facility which helps the transportation process of natural gas from one
location to another. Compressor stations include several key component
parts, the primary being the actual compressor unit, either centrifugal or
reciprocating. They also typically include scrubbers,
strainers or filter separators which remove liquids, dirt, particles, and other
impurities from the natural gas. This study will give an overview of the relief
analysis conducted for multiple compressor stations. The relief analysis was
system based as opposed to relief device based so as to identify any
unprotected systems that may need overpressure protection. It will discuss the
overpressure scenarios identified for these systems. It will provide some
general statistics on the total number of applicable overpressure scenarios. It
will give a detailed breakdown of the various concerns found including, but not
limited to, undersized devices, unprotected systems, installation concerns,
data needs, and documentation discrepancies. The study will discuss possible
mitigation solutions for these concerns.