... in a similar fashion as a multiphase subsea booster, to pump the homogeneous dense mixture. The main objectives of the test campaign were to validate the hydraulic performance prediction and assess the rotordynamic behavior of the pump when operated with a dense fluid. Additionally, a series of slug tests...

... Abstract Ageing offshore oilfields with increasing water cuts can suffer from severe slugging and liquid hold-up in subsea flowlines. Excessive liquid loading in flowline and riser sections results in unstable processing condition on the topside; potentially leading to off-spec crude oil...

... Abstract Long slugs arriving in separators/slug catchers is a major flow assurance concern in the offshore oil production industry, potentially causing flooding and/or severe separation problems. The sizing of the receiving facilities is determined by the longest slugs, so the economic...

... Subsea systems that transport multiphase flow such as wellhead and manifold jumpers, tie-in spools, free-spanning pipelines and risers can all be subject to slug and turbulence loading and response, depending on the characteristics of the reservoir fluids, the pipe geometry and the flow...

... for subsea pumps enabling high recovery factors. The objective of this work was to qualify a two-stage, compact, inline gas-liquid separation system with full turndown and slug handling capabilities, consisting of already proven components: one Gas-Liquid Cylindrical Cyclone (GLCC) and one InLine...

... Abstract During the life of certain offshore fields, slug flow can lead to alternating internal fluid conditions and irregular flow characteristics in subsea pipelines, risers and spools. These conditions generate time-varying fluid forces at locations of change in flow direction which can...

... to reduce the pigging risks in longflowlines by spreading the collected liquid and/or scraped deposits in front ofthe pig. By-pass pigging is a complex fluid dynamics operation. Only limitedsuccess in predicting slug size and duration has been reported for by-passpigging operations, even with sophisticated...

... Abstract LedaFlow® is a new transient multiphase flow simulator which includes 1Dmulti-fluid models consisting of mass, momentum and energy conservationequations for each field (continuous, bubble and droplet), as well ascompositional tracking. In this paper, a new method called Slug Capturing...

.... noise experiment vibration optical fiber upstream oil & gas dv system sand production offshore technology conference single-mode fiber control line production monitoring frequency content production control production logging application slug reservoir surveillance completion fiber...

... consists of the two-process cycles: injection of a methanol-solution slug into the well, and flowback with depressurization. Based on calculation using our numerical simulator, MH21-HYDRES (MH21 Hydrate Reservoir Simulator), we analyzed hydrate dissociation behavior during the huff-and-puff stimulation...

... of the proposed development options was flowassurance - mainly, the required line sizes, formation of hydrates and slugging. Numerous hydraulic cases were investigated using PIPESIMi (steadystate multiphase flow simulator) and OLGAii (three phase transient simulator)for the two most probable development options...

... suffice. flow management superficial gas velocity olga transient model liquid velocity production control production logging liquid holdup otc 11965 flow regime regime stratified flow slug correlation danielson reservoir surveillance database terrain pipeline pressure drop...

... ABSTRACT Slug flow is a flow pattern commonly encountered in offshore Multiphase flow lines. It is characterized by an alternate flow of liquid slugs and gas pockets, resulting in an unsteady hydrodynamic behavior. All important design variables, such s slug length and slug frequency, liquid...

... proved the basic concept. Additionally, significant development of the process control system has resulted in understanding and excellent control of both upstream slug flow and pressured low variations from a simulated well scenario and also the downstream pressure/flow variations representing long...

..., this method allowed these objectives to be achieved. startup check valve glycol terminal valve otc 007576 pig train slug transmission system teesside esd valve nitrogen upstream oil & gas receiver riser platform pipeline pigging contractor operation pig launcher platform...

... system correlation technique flow rate satellite field development pipeline flow pattern platform production logging operation reservoir surveillance flow regime characteristic slug riser production monitoring prediction production control well product upstream oil & gas liquid...

... supplied data involved changing either the air or water flow rate of a two-phase mixture from one equilibrium condition to another. Data was collected for both steady state and transient conditions, observations of flow pattern and measurements of liquid hold-up and sweep-out, pressure drop and slug...

... Riser using a series of bi-directional pigs separated by slugs of nitrogen, gelled diesel and diesel forming a pig train (figure 2) referred to as Primary Dynamic Seal (PDS). arrl offshore technology conference slug operation midstream oil & gas subsea safe isolation teclmique...

... ABSTRACT The formation of slugs in nearly horizontal pipelines is analyzed in a probabilistic approach. The knowledge of the probability amplitude for a liquid bridge in the formation zone allows to derive the slug length distribution law. A simple modelization of this probability, which...

... Abstract A novel method has been developed for detecting both the size and the location of liquid slugs, generated by a spearing operation in trunk gas lines run fling through hilly terrain, from the pressure variation at the end of the line. The method is based on the phenomenon that the slug...