DNV To Oversee Bolt Fatigue Testing Program Focused on Subsea Systems
DNV has received a contract from the American Petroleum Institute (API) to execute a program that will provide new insight on large-diameter bolt fatigue, particularly as it relates to subsea systems.
Testing will be performed at DNV’s labs in Columbus, Ohio, and Norway that are equipped to handle capacities of 7500 kN and staffed with experts in fatigue of subsea equipment, bolting connections, cathodic protection, and instrumented tests. It will take place in a controlled environment, recording the number of cycles, stresses, strains, current, pH, and oxygen level.
“The type of fasteners tested are used in critical subsea applications and are often exposed to fatigue loads combined with high pressures and temperatures,” explained Frank Ketelaars, DNV GL - Oil & Gas regional manager, Americas. “Enhanced knowledge of fatigue performance will enable cost-effective designs ensuring safe operations of this critical equipment.”
As the program advances, data from the tests will be made available on DNV’s Veracity open industry platform. This will include key findings and test images as well as logging data, which will allow the API project team to monitor tests and conduct independent analyses.
Testing is slated to be completed by year end.
Equinor Awards Milestone Wireless Subsea Drone Contract
The $43-million deal with Saipem will utilize a wireless underwater intervention drone and an ROV for intervention work on the Njord field in the Norwegian North Sea. Equinor said the contract is the first ever from an operator for advanced wireless drone services.
Corrosion Will Occur, Whether You Like It or Not
Just like Houston’s summer heat, corrosion of metal surfaces will occur—whether you like it or not. To help you better understand corrosion, these papers describe using water surveys in a production/injection plant, testing the effectiveness of mitigation, and data evaluation using machine learning.
HDPE Liner in Carbon Steel Pipe Manages Flowline Corrosion in Giant Onshore Field
Internal corrosion has caused ADNOC to suffer loss of containment in oil flowlines in a giant onshore field. This paper describes the successful 5-year field trial program and confirmation that HDPE liner application in carbon steel pipe can be a cost-efficient way to mitigate internal corrosion.
Don't miss out on the latest technology delivered to your email every two weeks. Sign up for the OGF newsletter. If you are not logged in, you will receive a confirmation email that you will need to click on to confirm you want to receive the newsletter.
03 October 2019
08 October 2019
02 October 2019
03 October 2019