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virtual fuid sampling model provide a predictive tool to track fuid compositions in multi-phase fow. This enables representative fuid sampling
that can inform operational conditions of subsea production facilities, for
proactive monitoring and cost effcient operations.
The integrated virtual fuid sampling model benefts oil and gas production. It provides the capability to improve the understanding of well
stream fow and retrieve information from parts of the production system that instrumentation can not reach. It enables a proactive and cost-effective sampling operation on a subsea production facility, allowing the
development of advanced operational monitoring through the life-of-feld.
Thus, the capability of the integrated virtual fuid sampling model
has been demonstrated to track fuid compositional changes, an innovative breakthrough, where feld measurement instruments can
not reach. It also provides an enhanced strategy to manage feld production operations. The model presents a predictive tool to match
the performance of SMPFM for accurate monitoring of the well
stream fuid. Therefore, with the integrated virtual fuid sampling
model, a separate check on SMPFM is achievable.
Synergy in deepwater development
The combination of operational and system strategies provides
the right optimization to maximize asset value in deepwater developments. Employing the synergies of subsea fuid sampling (physical
and virtual sampling), subsea processing (conditioning, separation,
boosting, compression and re-injection), treatment of fuid through
injection of chemicals on subsea facilities, operational control philosophy, and the planning of step outs/architectures enables a holistic
development of deepwater assets.
Subsea fuid sampling adds value in feld developments, which is dem-
onstrated in a typical application to test the characteristics of different fu-
id components on a merging network. This is applicable for well streams
commingling into a manifold, and for tracking individual components of
the well to provide an accurate measurement and allocation of production
revenue, as well as when to employ subsea processing during the life-of-
After a subsea separation process, water can be re-injected into the
reservoir with reduced energy consumption required to deliver the
separated hydrocarbon fuid produced to the topside facilities. The syn-
ergy of fuid sampling and subsea processing provides an optimized
approach to maximize growth in hydrocarbon volume production.
While project planning, one needs to understand when to introduce
subsea processing; not all felds require major processing at the early
phase of production. If an initial feld study indicates that water break-
through is not expected until after the third year of production, it may not
be necessary to install water separation equipment from the start. Also,
if the natural fow pressure is suffcient, then boosting equipment may
not be necessary until the third year of production. Therefore, a proper
feld assessment study is required before making any fnal investment
decisions about using subsea processing to maximize asset recovery.
By acquiring subsea fuid samples, accurate fuid properties are obtained, which are essential for effective reservoir evaluation and management. Retrieving accurate fuid samples are linked to the value creation
and realization in employing subsea processing on feld development. The
synergy between the developed virtual fuid sampling model and ROV
deployed fuid sampling have been identifed as the optimal solution to
acquire representative fuid samples, to validate and calibrate SMPFM. •
Based on a paper presented at the Deep Offshore Technology International Conference & Exhibition held in Aberdeen, Scotland, October 14-16, 2014.