Inyecciòn

FMC Chiksan and Weco Field-Proven Sour Gas Products
® ®

The solution for your demanding sour gas equipment requirements
Technology Performance Reliability Service

Important Information About Sour Gas

H

ydrogen sulfide (H2S) is found in many oil and gas formations. H2S is highly toxic, colorless, and

heavier than air. It has a characteristic foul odor of rotten eggs. Gascontaining H2S is commonly referred to as sour gas. Many oilfield injuries and fatalities can be traced to sour gas. Prolonged exposure to low concentrations of sour gas will dull the sense of smell and cause eye and respiratory irritation. In moderate concentrations, loss of balance and reasoning ability will occur. At high concentrations, H2S deadens the sense of smell, preventing detection ofthe deadly gas and paralizing the lung muscles. This lethal situation has resulted in many deaths. Pressure-containing components are vulnerable to sulfide stress cracking (SSC) when exposed to sour environments and can lead to various modes of material failure depending on additional environmental conditions. Material damage can occur in a relatively short time frame and can lead tocatastrophic failure of the equipment. To prevent material failure and the potential release of highly toxic gases, it is necessary to design metallic components to resist SSC. Guidelines for controlling SSC have been established by the National Association of Corrosion Engineers (NACE). These guidelines are published in NACE Standard MR-01-75. Additional guidelines are published by the AmericanPetroleum Institute (API) in API RP-14E. Sour gas equipment should be specified when there is a possibility that operating conditions will fall within the parameters established by NACE Standard MR-01-75. These parameters include concentration of H2S, operating pressure, and gas/oil ratio of contained fluids. In today's competitive business environment, oil and gas producers are keenly aware of theneed for safe operations and are demanding higher accountability from their suppliers. Many major producers now specify the exclusive use of sour gas service products.
SG-8-99 SG-8-99

FMC Sour Gas Equipment
has been supplying reliable, field-proven sour gas equipment since 1970. Today, FMC is pursuing its commitment to you through improved designs, new materials, higher pressure ratings,and a rigorous new product research and development effort.

FMC

All Chiksan and Weco sour gas products meet or exceed NACE and API requirements
FMC began providing quality sour gas equipment long before the National Association of Corrosion Engineers (NACE) Standard MR-01-75 was written. Today, all Chiksan and Weco brand products for sour gas service meet or exceed NACE StandardMR-01-75 and the American Petroleum Institute’s (API) Standard RP-14E.

Quality assurance second to none
Before any Chiksan or Weco product for sour gas service reaches you, it goes through FMC’s total quality assurance program. This rigid quality program approved by leading independent inspection organizations insures that all FMC sour gas products are manufactured and processed to the highestindustry standards. The result: You get quality sour gas equipment that provides long life and dependable service every time.

Simple, positive identification
For positive identification, all Chiksan and Weco sour gas products are stamped “Sour Gas” using low-stress dot stamping. FMC sour gas equipment is also painted with an olive green, zinc-chromate primer that is unique to sour gasproducts.

Widest selection in the oilfield
FMC offers you the most complete line of sour gas swivel joints, wing unions, and plug valves in the world. Other FMC products for sour gas service include Chiksan cementing and circulating hoses, Weco pup joints, fittings and adapters, Weco pressure relief valves, Weco check valves, and manifold assemblies.

Table of Contents
Introduction...