Corrintec surveys subsea section of OCP off EcuadorProjects and Operations // January 31, 2008
Corrintec has completed a subsea survey offshore Ecuador.
Corrintec, the specialists in subsea pipeline cathodic protection surveys, have carried out a survey on the final section of a 500km pipeline that transports crude oil from the jungles of the Amazon, across the Andes, to a terminal near Esmeraldas on the Pacific Ocean.
The survey has been commissioned by SLEM SA on behalf of Oelducto de Crudos Pesados (OCP) who operate and maintain the pipeline. When completed in 2003, the OCP more than doubled the crude oil exported from Ecuador.
Corrintec focused on the four submarine pipelines which connect the storage tanks at the Esmeraldas Marine Terminal to coupling buoys 7km off the coastline.
One of the buoys can serve tankers of up to 150,000dwt and the other 325,000dwt. Each of the pipelines has a maximum flow rate of 60,000 barrels per hour. In addition, Corrintec engineers have carried out a 500m landfall survey on the four pipelines.
The ‘trailing wire’ survey method was used to verify the effectiveness of the pipeline’s cathodic protection system, a necessary requirement for insurance purposes.
Data gathered during the survey will be analysed by Corrintec’s engineers to establish the overall ‘electrical potential’ values to provide an overview of the status of the system.
“This is the first time that we have undertaken a survey in Ecuador which is one of Latin America’s largest crude oil exporters, opening the possibility of further assignments”, said Ian Pownall, manager of Corrintec, a division of Cathelco Ltd.
During recent months, Corrintec have widened the geographical scope of their work with an ROV survey in Angola which was commissioned by Fugro BV and involved surveying 9km of newly laid pipeline within the Total E & P Gas Gathering Project.
This was followed by a ‘hybrid’ survey in the Rio Del Ray field off Cameroon commissioned by IOTA Survey & SBM on behalf of their client Total and involved inspecting 90km of pipeline in the Eastern Complex.
The projects in West Africa and Ecuador are in addition to the company’s regular survey work in the Indian Ocean and the Middle East.