New approaches to the recycling and reuse of produced and flowback water offer cost-saving options to operators.
An inefficient chemical management system can not only be a major contributor to operating expense, but can lead to later problems with flow assurance and infrastructure integrity—corrosion and possibly even failures.
An alternative to eliminating hydrates completely is to allow agglomeration in cases where some hydrates in the flowlines can be tolerated without blocking the lines. The result is a reduction in the cost and quantity of chemicals used.
A primary cause of vibration induced fatigue failures of smallbore connections in process piping systems is poor design. This article develops the concept of a cutoff natural frequency into a practical application that can be used during the design process.
Peer Review Editor
N. Abili, F. Kara, and I.J. Ohanyere
The first paper focuses on the applicability of subsea processing technology with the use of multiphase pumps to develop marginal deepwater fields. While the paper does not present specific field applications, the authors include several typical cases that show the logical path through which multiphase pumps were recommended for marginal deepwater field developments.
The second paper covers a methodology to evaluate the required amount of passive fire protection (PFP), and shows that this methodology increases certainty about the level of protection provided to a structure. While this approach increases the cost of the upfront analysis, the resulting PFP scheme is likely to yield major savings in both capital and operating expenditures.
C.Y Leong and L.F. Ayala H.
The third paper deals with a method to simulate gas pipeline networks. While this paper contains plenty of theory, it also contains practical case studies to demonstrate the straightforward and reliable nature of the proposed methodology when it is used to analyze a steady-state gas network system with pipeline, compressor, and wellhead components.
M.J. Mazzetti, P. Nekså, H.T.Walnum, and A.K.T. Hemmingsen
The last paper in this issue presents novel technologies to increase the energy efficiency of offshore oil and gas platforms and concludes that the most effective way to achieve this is by applying compact bottoming cycles to the waste heat from the platform’s gas turbines.