Title
Improving well production performance by using realtime wash desalting planning tool WDPT in the North Sea
Author
Octaviano, R.
Hornstra, E.
Poort, J.P.
Shoeibi Omrani, P.S.
van der Linden, R.J.P.
Slot, H.J.
Dechelette, B.
Publication year
2020
Abstract
Due to natural depletion many mature fields are currently suffering from productivity issues due to halite precipitation in the North Sea. Main actions to prevent or solve this type of scaling issues include increasing flowing pressures (topside choking or velocity strings), but often considered easiest and most economical are fresh water washes to dissolve downhole halite deposits. The main objective of this study is to increase production by optimizing washing sequences. Having an accurate washing schedules predicted allows to anticipate on production degradation and its mitigating actions. To predict production decline due to halite, a virtual flow meter is developed combining a well model (Vertical Lift Performance, known as VLP curve), reservoir model (Inflow Performance Relation, known as IPR curve) and a dynamic model for the extra pressure drops due to deposition. The flow is calculated including the additional pressure drop. The virtual flow meter is calibrated using the last 3-6 months of production data. The Well Desalting Planning Tool (WDPT) makes real-time estimates of short-term pressure drops for each well and finally determines a date to water wash. It shows the schedule in the Planning Dashboard of the web-based WDPT tool. The software can be used to assist the operations department in prioritizing platform visits and optimize production. WDPT is developed as part of company Digital Oil Field (DOF).
Subject
Chloride minerals
Desalination
Flow measurement
Flowmeters
Gasoline
Oil fields
Optical variables measurement
Sodium chloride
Washing
Additional pressure drops
Digital oil field
Extra pressure drops
Flowing pressures
Increase productions
Inflow performance
Production declines
Reservoir modeling
Petroleum industry
Industrial Innovation
To reference this document use:
http://resolver.tudelft.nl/uuid:f14fb17d-247c-4495-98b1-e50f1f5be664
TNO identifier
955336
Publisher
Society of Petroleum Engineers SPE
ISBN
9781613997345
Source
Abu Dhabi International Petroleum Exhibition and Conference 2020, ADIP 2020, Virtual, 9-12 November 2020
Document type
conference paper