Combining Testing-by-Difference, Geochemical Fingerprinting, and Data-Driven
Models: An Integrated Solution to Production Allocation in a Long Subsea
Tieback

Dolle, Norbert; Francois, Gelin; Tendo, Fidelis; Goh, Keat-Choon; Overschee, Peter Van

doi:10.2523/108957-ms

Cited by 7 publications

(4 citation statements)

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“…The daily report consists of individual well daily gas flows and the flare gas flow as estimated by subtracting sales gas, inection gas and utility gas from the total well gas flow estimates. 3,4,5,6,7,8). For all of this large installed base FW PU is already automatically and continuously estimating gas flows for all of the wells.…”

Section: Case Study 4 -Continuously Estimating Gas Emissions To the Amentioning

confidence: 99%

Continuous Energy Efficiency and Green House Gas Emission Surveillance and Control

et al. 2011

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The purpose of this paper is to document Shell's experiences and learnings in the effort to better track and reduce Green House Gases (GHG) and improve Energy Efficiency in our downstream manufacturing and upstream production operations. The paper is based on Case Studies from various Operating Units in Shell upstream and downstream operations, as well as outlining further development plans.In Shell operations we seek to minimize GHG emissions by continuously monitoring, displaying and reporting associated Key Performance Indicators (KPI's) and quickly alerting operators of changes to trigger remedial intervention. Reduction of GHG emission is also achieved by improving cross validated and mass balanced tracking of our process streams. This ensures that manufacturing and production processes are operated efficiently and transparently.Continuous GHG monitoring also allows automatic compilation of emissions by source which can then be automatically reported as part of the normal daily reporting cycle. The resulting emissions figures and associated KPI's are then prominently displayed in the Daily Production Report. The daily emissions totals are also stored and trended to flag more subtle and/or gradual changes. In this way GHG emissions data and performance information are made available to operations staff and management to facilitate awareness and corrective actions when appropriate.

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Section: Case Study 4 -Continuously Estimating Gas Emissions To the Amentioning

confidence: 99%

Continuous Energy Efficiency and Green House Gas Emission Surveillance and Control

et al. 2011

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“…• Offshore or onshore surface wells, chemical injection, test separator, gravity separation (two (2), or three (3)-phase), gas/oil dehydration, gas compression, gas injection, oil and gas export.…”

Section: What Is Remote Operations?mentioning

confidence: 99%

Remote Operations—A Remote Possibility, or the Way We Do Things ‘Round Here?

Cramer

Hofsteenge

Moroney

et al. 2011

SPE Offshore Europe Oil and Gas Conference and Exhibition

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Shell aspires to maximize unattended operations for all upstream E&P "green" and "brown" field assets using the appropriate level of automation. The benefits associated with down manned operations include the following: SPE 145224 This paper will describe the following:• Shell's overall remote operations strategy • Technologies associated with remote operations, inclusive of production deferment reducing techniques such as data analytics and well/reservoir surveillance • Shell guidelines associated with remote operations • EP remote operations experiences in a number of different assets in Europe, USA and Africa This paper demonstrates that, for Shell, remote operations is not a remote possibility, but is in the process of becoming a reality across our global upstream operations.

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“…In references [1,5,6,7] the Production Universe data driven modelling system for real-time virtual metering and real-time optimization is described. The Production Universe technology is developed from identification techniques applied to the specific oil and gas production environment.…”

Section: Base Technology For Closed-loop Real Time Production Surveilmentioning

confidence: 99%

Closing the Loop for Improved Oil and Gas Production Management

Dijk

Goh

Lienden³

2008

All Days

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Well and Facility Operations make operating decisions based on processing huge amounts of data. However, there is a practical limit to the number of optimization moves an operator can make (due to: changing operating constraints, plant disturbances or interactions, fundamental process delays and dynamics, and the remoteness of wells). Automatic Process Control enhances the speed and accuracy with which decisions can be made and is essential for optimization. However, the advantages of automatic process control are often underestimated; hence the discipline is under-staffed and under-utilized.Process Control also plays a crucial role in plant safety and availability as stable wells or facilities are operated more frequently within the design window. Stable operation results in fewer shutdowns, less breakdown maintenance, less deferment, less flaring, lower operational cost, and sometimes even higher ultimate recovery. The impact of process instabilities on overall well or facility performance are often not recognized; a single trip may wipe out months of optimization benefits.To achieve the full potential of process control in Oil and Gas Production requires change management; Process Control technology skills need to be used throughout the whole projects lifecycle and integrated with the various processes from field development planning to surveillance and optimization. This paper will provide the following examples:1. automatic control of producer wells to prevent coning and/or gas breakthrough, 2. automatic control of injection wells to control water flooding and prevent fracturing, 3. capacity and surge controls for compressor networks, 4. control applications for the suppression of slugs, and, 5. higher level process control applications, where the application of automated control technology has improved production surveillance, management, and optimization. The role of Process Control in Exploration and ProductionHistorical perspective Most engineers and managers confuse Process Control with Instrumentation; i.e. they think Process Control is only about the video screens in the control room and the associated computers. However, Process Control is the rationale behind the visible systems (instruments and valves) and the strategy about realizing process objectives. Design decisions are made when devising the control strategy; if the level in a vessel is higher than the desired level, the control strategy is either to open the valve of the liquid outlet stream or to throttle a valve in the incoming stream. The right choice will depend on the process itself and the process objectives of the integrated facility (i.e. the consequences of the strategy upstream or downstream of the unit must be considered). Certain control objectives will be conflicting or have different priorities. It is also important to consider the dynamics of the process, the drifts and changes in the underlying equipment and processes, the measurement noise, and the possible disturbances that can occur.

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Combining Testing-by-Difference, Geochemical Fingerprinting, and Data-Driven Models: An Integrated Solution to Production Allocation in a Long Subsea Tieback

Cited by 7 publications

References 0 publications

Continuous Energy Efficiency and Green House Gas Emission Surveillance and Control

Continuous Energy Efficiency and Green House Gas Emission Surveillance and Control

Remote Operations—A Remote Possibility, or the Way We Do Things ‘Round Here?

Closing the Loop for Improved Oil and Gas Production Management

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