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Automated Gaslift Control Pecten Cameroon Company

Learn about the past, present, and future of the Automated Gaslift Control system at Pecten Cameroon Company and how it has improved well testing, efficiency, and stability.

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Automated Gaslift Control Pecten Cameroon Company

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  1. Automated Gaslift Control Pecten Cameroon Company - Who we are, where we are - What we had in the past and the problems it gave… - What we have now and the benefits we've realised… - What we plan to have in the future and what we still hope to gain… - Summary Pecten Cameroon Company 1

  2. Automated Gaslift Control Past System: • Flow rates influenced by Merla Valves • Flow & Pressure monitored by Barton Recorders • Flow rate set on platforms by Operator • Each Operator had his 'favourite' settings, changed shift by shift • When supply pressure varied, flow varied • When casing pressure varied, flow varied Varying Gas Injection Rates & Pressures Made Tests Inaccurate Merla Valve Gas to Well Gaslift Manifold Barton Recorder Pecten Cameroon Company 2

  3. Automated Gaslift Control Present System: • Flow rates controlled by Fisher Valves • Flow & Pressure monitored by SCADA • Flow rate set from Juliet by Well Analyst • When supply pressure varies, flow remains constant • When casing pressure varies, flow remains constant Juliet Server Fisher Valve Gas to Well dP Cell Linked to SCADA Gaslift Manifold And yes, we still have The Barton recorders… Pecten Cameroon Company 3

  4. Automated Gaslift Control This System Will: • Ensure constant liftgas injection despite variations in liftgas supply pressure But It Will Not: • Prevent a well from surging: it is not a replacement for good gaslift design! Juliet Server Fisher Valve Gas to Well dP Cell Linked to SCADA Gaslift Manifold Pecten Cameroon Company 5

  5. WinGLUE Automated Gaslift Control Future System (1): • Flow rates controlled by Fisher Valves • Flow & Pressure monitored by SCADA • Flow rate set from Juliet by WinGLUE • When supply pressure varies, flow varies in a controlled way • When casing pressure varies, flow remains constant Juliet Server Fisher Valve Gas to Well dP Cell Linked to SCADA Gaslift Manifold Pecten Cameroon Company 6

  6. WinGLUE Automated Gaslift Control Future System (2): • System will produce the most oil under most conditions: • Change in compressor outputs will cause every control valve to change position • System monitors and controls 24 hours per day Juliet Server Fisher Valve Gas to Well dP Cell Linked to SCADA Gaslift Manifold Pecten Cameroon Company 7

  7. WinGLUE Automated Gaslift Control Future System (3): • Compensate for surface facility bottlenecks: • Modify the Winglue table's output • When one part of the field bottlenecks, route lift gas elsewhere • Most efficient use of liftgas and facilities Juliet Server Bottleneck Compensator Fisher Valve Gas to Well dP Cell Linked to SCADA Gaslift Manifold Pecten Cameroon Company 8

  8. Automated Gaslift Control Summary: • Better quality well tests • More efficient use of liftgas • More stable than manual control • Optimum use of surface facilities • Ensures that good wells receive gas when supply drops • Less load on operators, but more load on instrument techs • Estimated 2% increase in net oil production (on top of what we thought was an optimised system…) 9

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