Implementing a Chemical EOR Project - uwyo.edu
Transcript of Implementing a Chemical EOR Project - uwyo.edu
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Implementing a Chemical EOR Project
2010 Wyoming EORI ConferenceSeptember 13 & 14, 2010Jackson, WyomingPresented by: John Putnam
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CHEMICAL PROCESSING AND INJECTION FACILITIES
Purpose-built chemical processing and injection systems for chemical EOR project implementation on a pilot or field scale basis.
Chemical EOR processes include:> Polymer Augmented Water Flooding> Surfactant-Polymer (SP)> Alkaline-Surfactant-Polymer (ASP)> Alkaline-Polymer (AP)
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Modular Style, Factory Pre-Built ASP Chemical Processing & Injection Facility rated to 5,000 BPD
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Designing the Facilities• Project schedule• Initial design requirements & site orientation
– Systems performance requirements– Internal mechanical, electrical & automation specs
• Process flow diagrams & general arrangement layouts
• P & I Diagrams• Site drawings & civil work requirements• Installation & Start-Up
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Determine Facility Operating Parameters
Define Facility Performance Chemical Handling & Processing
Polymer Surfactant(s) Alkaline Agents
Soda AshOther Alkaline
Water Treating Reagents BiocidesOxygen Scavengers
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Facility Operating Parameters
Define Facility Performance Injection Rates & Pressures
How many injection wells? Individual rate control – dedicated PD pump per IWOr, High Pressure Slip-stream Scheme
Fluid characteristicsMechanical degradation Viscosity Temperature
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Operating Logistics
Raw Chemical Receiving & Handling Bulk ISO Containers Semi-bulk bins
Special handling requirements Polymer Surfactants Alkaline Agents
QA/QC of Received Chemicals Factory Certification Field verificationQuarantine & Record Keeping
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Facility Construction Style
Construction styleModular – oil field skid type
Pre-built & shipped to locationMinimizes on-site installation activities Fastest method lab-to-field for pilot projects Portability permits inter & intra field moves
Build In-Place - permanent building type Install process systems at the locationConstruction trades required on-siteMore economical for full-field or large installations
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Site Infrastructure & Utilities
Water Source Required water pre-treatment
Facilities site plot plan Chemical & Process Facility Location Supply tanks Delivery truck access
Electrical Power Flow Line & Injection Header Scheme
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Operations & Training
• Theory of operation• Process logic & Operator interaction• Controls & Automation• Daily tasks
• Filter changes• Preventative Maintenance• Injected Fluid QA/QC• Raw Material QA/QC
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•Facility Start-Up & Commissioning•Operator Training
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Human Machine Interface
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Injected Fluid Quality
Daily QA/QC Process water hardness Viscosity pH Conductivity (ASP) Filter Ratio IFT or Phase Behavior Material balance
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Automatic Polymer Dispersion & Maturation
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Conclusions: Successful Implementation Defined
Transferring the lab optimized chemical EOR chemical recipe to field injection using reliable, low maintenance chemical handling, processing & injection facilities that are fit-for-purpose.
• QA / QC that insures desired injection fluid quality• Monitoring response to both the injection and production side and
accurate interpretation• Readiness to diagnose and correct well issues such as injection non-
conformance• Readiness to handle & process production fluids