... formation. The uncontrolled growth and agglomeration of these crystals can cause pipeline plugging, with production stop and related revenue losses, and thus such phenomenon is nowadays regarded as the main challenge in flow assurance (2). pipeline capillary wall slug flow kinetic model bhr...

... ABSTRACT Hydrate management has become a key topic in flow assurance due to the oil & gas production in cold environments (deep waters) and due to the high flow rates of water, especially in brownfields. Considering this, a hydrates formation and transport model is formulated and coupled...

... it is accurate and easy to implement for flow assurance engineers. 1. INTRODUCTION Sand management in multiphase flow operated pipelines is crucial in both onshore and offshore fields. As a matter of fact, solid particles can be produced from the reservoir and either transported or accumulated in the flow...

... ABSTRACT Asphaltene precipitation and deposition is a major flow assurance challenge, which manifests itself in reservoir, production tubing, and flowline and process facility. Asphaltene may unstable and precipitate due to two main factors, namely high asphaltene content, and high difference...

... the first attempt at such a direct coupling, and illustrate the application of this approach to an example case study. viscosity manifold fraction equilibrium temperature flow assurance relative viscosity prediction equation algorithm bhr group 18 upstream oil & gas calculation...

... consisting of an inlet cooler, a scrubber where liquid is drained out and boosted through a liquid pump whereas the gas is routed through a compressor before it is cooled down and mixed with the liquid. There are numerous challenges when designing a subsea compression plant such as ÅSC from a flow assurance...

... ABSTRACT In subsea processing systems multiphase cooling is required to meet a variety of process needs and flow assurance challenges. Required functionality might include enhanced pipeline corrosion protection, pipeline temperature control, improved process efficiency, compressor anti-surge...

... lead to flexible strategies with mitigations that can limit downsides and capture unexpected upsides. While there has been significant focus on risk and uncertainty in the subsurface (1,2), application of such approaches for flow assurance design and operation has lagged. The work here details concepts...

... plans. Furthermore, this paper also provides good insight into the capabilities and limitations of the hydrate kinetics and transportation models available in the industry for a gas dominated system. gas flowrate simulation pressure difference water ingress flow assurance hydrate formation...

... methodology for generating steady state operating envelopes for multiphase pipelines. The approach presented improves the consistency and quality of steady state analysis, focusing efforts of flow assurance engineers away from the laborious generation and collation of data, towards the understanding...

... ABSTRACT Multiphase simulators are used widely by flow assurance engineers but the inputs to the simulator are often thought of as apparent certainty whereas, more accurately, they represent unquantified uncertainty. This paper shows how stochastic methods combined with life of field...

... assurance issue related to deep water offshore production. The formation of a hydrate plug can occur very rapidly and may cost millions of dollars in remediation costs and production losses. Therefore the widely used flow assurance strategy is to avoid the formation of hydrates altogether, usually using...

... depressurisation hydrate plug hydrate blockage manifold production monitoring onshore flow assurance Atlantic and Cromarty A hydrate blockage and remediation case study P D Molyneux, A R Williams GL Noble Denton, UK D Tagg ES175 Ltd (formerly BG Group), UK ABSTRACT This paper describes the initial...

... predictions through to the significant error in water metering. All of these aspects are required in developing the hydrate management philosophy and subsequently the operating procedures. flow assurance steady state wax inhibition asphaltene remediation meg scale inhibition paraffin remediation...

... an uncertain (possibly short) "induction time"; where hydrates will not form at a specific subcooling, leading to the mistaken impression that the inhibitor has failed when hydrate crystals appear. In this paper, we describe a flow assurance design where a gas well (Varg) is tied into an existing North Sea...

... or excessive EOR demands. This work also highlighted the importance of the thermodynamic and physical properties modelling for nearly pure CO 2 fluids. upstream oil & gas system pressure enhanced recovery multiphase 15 objective controller subsurface storage flow assurance eor demand...

... deposition production logging flow rate test section production control crude oil pressure drop olga simulation flow metering flow assurance university of tulsa upstream oil & gas reservoir surveillance deposition production monitoring pipeline bhr group 2011 molecular diffusion waxpro...

...) for restarts. hydrate equilibrium temperature ims procedure separator pressure bhr group 2011 hydrate equilibrium data simulation upstream oil & gas concentration choke valve restart procedure fluid temperature flowline flow rate field data flow assurance restart gas flow rate...

... ABSTRACT In ultra deep water fields when the produced oil shows unusual high values for the Wax Appearance Temperature (WAT) and for the Yield Stress, Extended Well Tests (EWT) are an important tool to investigate these flow assurance aspects. To prevent fluid gelification in unplanned shut...

... ABSTRACT In every oil and gas field development projects, especially when moving into deep water and/or long tieback distances in harsh environments, flow assurance is of crucial importance in order to define a robust, reliable concept which will ensure security of supply during the whole...