skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Qatar NGL-2 pipeline problems

Abstract

Qatar NGL/2 plant, commissioned in December, 1979, was designed to process the associated gas from the offshore crude oil fields of Qatar. The dehydrated sour lean gas and wet sour liquids are transported via two separate lines to Umm Said NGL Complex about 120 kms. from the central offshore station. The liquids line 300 mm diameter (12 inch) has suffered general and severe pitting corrosion. The lean gas line 600 mm diameter (24 inch) has suffered corrosion and extensively hydrogen induced cracking (HIC), also known as HIPC. Both lines never performed to their design parameters and many problems in the downstream facilities have been experienced. All efforts to clean the liquids lines from the solids (debris) have failed. This inturn interfered with the planned corrosion control programe, thus allowing corrosion to continue. Investigation work has been done by various specialists in an attempt to find the origin of the solids and to recommend necessary remedial actions. Should lines fall from pitting corrosion, the effect of liquids leak at a pressure of about 11000 kpa will be very dangerous especially if it occurs onshore. In order to protect the NGL-2 operations against possible risks, both interms of safety as well asmore » losses in revenue, critically sections of the pipelines have been replaced, whilst the whole gas liquids pipelines would be replaced shortly. Supplementary documents to the API standards were prepared by QPC for the replaced pipelines.« less

Authors:
Publication Date:
Research Org.:
Quatar General Petroleum Corp.
OSTI Identifier:
5057474
Resource Type:
Journal Article
Journal Name:
Soc. Pet. Eng. AIME, Pap.; (United States)
Additional Journal Information:
Journal Volume: SPE13685
Country of Publication:
United States
Language:
English
Subject:
03 NATURAL GAS; NATURAL GAS LIQUIDS; TRANSPORT; PIPELINES; FAILURES; QATAR; OIL FIELDS; CORROSION; HYDROGEN EMBRITTLEMENT; LEAKS; NATURAL GAS PROCESSING PLANTS; OFFSHORE SITES; SAFETY; ASIA; CHEMICAL REACTIONS; EMBRITTLEMENT; FLUIDS; GEOLOGIC DEPOSITS; INDUSTRIAL PLANTS; LIQUIDS; MIDDLE EAST; MINERAL RESOURCES; PETROLEUM DEPOSITS; RESOURCES; 032000* - Natural Gas- Transport, Handling, & Storage

Citation Formats

El-Jundi, I M. Qatar NGL-2 pipeline problems. United States: N. p., 1985. Web.
El-Jundi, I M. Qatar NGL-2 pipeline problems. United States.
El-Jundi, I M. 1985. "Qatar NGL-2 pipeline problems". United States.
@article{osti_5057474,
title = {Qatar NGL-2 pipeline problems},
author = {El-Jundi, I M},
abstractNote = {Qatar NGL/2 plant, commissioned in December, 1979, was designed to process the associated gas from the offshore crude oil fields of Qatar. The dehydrated sour lean gas and wet sour liquids are transported via two separate lines to Umm Said NGL Complex about 120 kms. from the central offshore station. The liquids line 300 mm diameter (12 inch) has suffered general and severe pitting corrosion. The lean gas line 600 mm diameter (24 inch) has suffered corrosion and extensively hydrogen induced cracking (HIC), also known as HIPC. Both lines never performed to their design parameters and many problems in the downstream facilities have been experienced. All efforts to clean the liquids lines from the solids (debris) have failed. This inturn interfered with the planned corrosion control programe, thus allowing corrosion to continue. Investigation work has been done by various specialists in an attempt to find the origin of the solids and to recommend necessary remedial actions. Should lines fall from pitting corrosion, the effect of liquids leak at a pressure of about 11000 kpa will be very dangerous especially if it occurs onshore. In order to protect the NGL-2 operations against possible risks, both interms of safety as well as losses in revenue, critically sections of the pipelines have been replaced, whilst the whole gas liquids pipelines would be replaced shortly. Supplementary documents to the API standards were prepared by QPC for the replaced pipelines.},
doi = {},
url = {https://www.osti.gov/biblio/5057474}, journal = {Soc. Pet. Eng. AIME, Pap.; (United States)},
number = ,
volume = SPE13685,
place = {United States},
year = {Fri Mar 01 00:00:00 EST 1985},
month = {Fri Mar 01 00:00:00 EST 1985}
}