Subsea Sampling Systems MARS Multiple Application Reinjection System Configurations

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Subsea Sampling Systems MARS multiple application reinjection system configurations APPLICATIONS Almost all technical and economic studies in the oil industry require an understanding of the reservoir ■ Production monitoring fluids. MARS* multiple application reinjection system sampling technology enables the capture of ■ Reservoir modeling and management a representative, uncontaminated sample from multiphase flow, in which the sample has the same molecules in the same proportions as the flow at the sampling point where all three phases are ■ Flow assurance in equilibrium. ■ Well intervention ■ Each phase is enriched and captured individually to collect sufficient volume of sample from ■ Subsea processing strategically chosen phase-rich sampling points. ■ EOR ■ No pressure or temperature drop should occur during sampling to maintain equilibrium BENEFITS between phases. ■ Enables representative subsea sampling ■ Each phase is captured and physically or mathematically recombined for reservoir fluids properties. throughout life of field ■ Mitigates risk and enhances flow assurance management ■ Optimizes multiphase flowmeter calibration and performance ■ Increases production and recovery rates ■ Reduces capex FEATURES ■ Flexibility for integration into subsea hardware and for various sampling applications ■ Three-phase representative sampling from multiple wells in a single dive ■ Phase detection and enrichment ■ Complete chain of custody throughout sample journey ■ Proven technology ■ Ideal solution for greenfield architecture ■ Retrofit capability for brownfield applications Subsea sampling using MARS system equipment. Subsea Sampling Systems MARS System Subsea Sampling Track Record Subsea Sampling Case 1 Subsea Sampling Case 2 Year 2016 Year 2016 Location Offshore Angola Location Gulf Of Mexico Samples captured and volume, in³ [cm³] Four 36.6 [600] Samples captured and volume, in³ [cm³] Four 54.9 [900] Working presssure, psi [MPa] Working presssure, psi [MPa] 15,000 [103.4] Interface 10,000 [68.9] Water depth, ft [m] 9,850 [3,000] Skid 5,000 [34.5] Water depth, ft [m] 3,610 [1,100] From production wing valve From production wing valve To flowline isolation valve Subsea Sampling Choke Insert Enable sampling access through insert-retrievable choke onesubsea.slb.com/mars *Mark of Schlumberger Other company, product, and service names are the properties of their respective owners. Copyright © 2017 Schlumberger. All rights reserved. 17-OSS-287231.

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