Improved Paraffin-Deposition-Profile Estimation in Hydrocarbon Pipelines and Effective Mitigation Review
Flow of paraffinic hydrocarbon liquids within extended pipeline networks or wells, where the environment/bulk temperature is below the cloud point or wax-appearance temperature (WAT), could result in precipitation of wax from the bulk fluid. Precipitated wax crystals from crudes deposits on the inner pipe wall could lead to reduced flow area or even complete blockage and could present a costly problem in the production and transportation of petroleum products. Timely removal of such deposits is extremely important to avoid associated problems.
This paper illustrates a numerical approach to estimate the deposition profile and its effect on flow-related parameters. Later, the procedure is validated with field data from a North Sea offshore production facility. This paper also seeks to propose a feasible solution to avoid such flow-assurance issues; in doing so, current commonly practiced reduction and preventive methods are reviewed. Previously, providing thermal insulation with aerogel foam had proved to be the most effective option in preventing wax from precipitating. A relatively new approach is discussed in this paper, which allows for minimizing the usage of insulation material in an attempt to reduce the implementation cost of the proposed precaution. Theoretical implementation of the procedure was also conducted to identify its effectiveness, which was later found to be elimination of the deposition completely.
DCN Diving Nets Dana Petroleum Deal
DCN will execute fabrication, installation, and precommissioning of various components for a gas export pipeline from two platforms in the Dutch North Sea.
Facilities Piping Inspection: Is Direct Assessment Enough?
Tons of resources are devoted to assure the integrity of facility piping systems, but are the generally accepted methods of inspecting these systems the best way? Complex systems with above- and underground piping sections may require a combination of direct assessment and elements of an API code.
As Midstream Becomes Mainstream, Pipeline Integrity Grows in Importance
Pipeline approvals can be a polarizing topic and advocacy for their viability is crucial for companies. What technologies are being developed to help bolster pipeline integrity, and how is the industry working to assure the general public of their safety and reliability?
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.
11 February 2019
30 January 2019
04 February 2019
28 January 2019