Determining the suitability of existing pipelines and producing facilities for wet sour service
Existing pipelines and producing facilities originally built for sweet and/or dry service are sometimes considered for conversion into wet sour multiphase service. In such cases it is prudent to address the potential for sulfide stress cracking (SSC) and hydrogen-induced cracking (HIC) in the proposed new service. This article provides a methodology for determining if SSC and/or HIC occurrence should be anticipated. This is done by adding liquid, free water phase curves to the well-known graphs in NACE MR0175-84, ''Sulfide Stress Cracking Resistant Metallic Materials for Oilfield Equipment,'' delineating susceptible and nonsusceptible regions both for SSC and HIC. The article also deals with how to evaluate the HIC susceptibility of the existing facilities with a coupon testing program based on the test described in NACE TM0284-87, ''Test Method for Evaluation of Pipeline Steels for Resistance to Stepwise Cracking.''
- Research Organization:
- Arabian American Oil Co., Dhahran 31311 (SA)
- OSTI ID:
- 5875455
- Journal Information:
- Mater. Performance; (United States), Journal Name: Mater. Performance; (United States) Vol. 28:6; ISSN MTPFB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
022000* -- Petroleum-- Transport
Handling
& Storage
36 MATERIALS SCIENCE
360105 -- Metals & Alloys-- Corrosion & Erosion
42 ENGINEERING
420205 -- Engineering-- Transport & Storage Facilities-- (1980-)
ALLOYS
CHALCOGENIDES
CHEMICAL REACTIONS
CORROSION
CORROSION RESISTANT ALLOYS
CORROSIVE EFFECTS
CRACKING
DECOMPOSITION
EMBRITTLEMENT
EQUIPMENT
FLUID FLOW
GEOLOGIC DEPOSITS
GRAPHS
HYDROGEN EMBRITTLEMENT
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS TESTING
MINERAL RESOURCES
MULTIPHASE FLOW
OIL FIELDS
PETROLEUM DEPOSITS
PIPELINES
PYROLYSIS
RESOURCES
STEELS
STRESS CORROSION
SULFIDES
SULFUR COMPOUNDS
TESTING
THERMOCHEMICAL PROCESSES