Using GIS to accentuate Effective Water Management. Ashwin Dhanasekar Assistant Director, CEWS

Transcription

1 Using GIS to accentuate Effective Water Management Ashwin Dhanasekar Assistant Director, CEWS

2 Center for Energy-Water Sustainability University based Research Institute Active projects with industry Neutral consultants in the O & G world Broad range of water related projects Also actively involved with CEMML working with US Army, Navy and AirForce

3 CEWS Active Projects Advanced Oilfield Water Management (DOE, Noble Energy, Halliburton) Colorado Water Watch (Noble Energy, COGCC, Western Res. Adv.) Risk of Ground Water Contamination (CO DNR) Impact of Recycled Water Quality on Oil/Gas Production Characterization of Flowback Organic Matter Using LC/MS

4 Stormwater Project Stormwater Network Assessment USAG HI 5 bases in Oahu, HI Real-time Assessment Software Used ArcMap , ArcGIS Online, GIS Pro

5 Colorado Water Watch

6 Disruptive Technologies Advanced Tools to Optimize Fluids Management a. WQ Treatment Targets b. Frac Fluid Optimization c. Optimal WQ for Production d. Beneficial Reuse of Produced Water $1.4M RPSEA Funding 2013 $0.25M RPSEA Funding 2015 Additional funding/support from Noble Energy and Halliburton

7 What constitutes Water Management? Freshwater acquisition, storage and transportation Frac fluid interaction with recycled water Produced water management (collection, storage, transport) PW disposal / treatment Recycled water management (collection, storage, disposition)

8 The Ultimate Solution Treated Produced Water Black Box

9 The Big Picture C fresh Water Management Technology Fresh Water Source V fresh WQ fresh T fresh Minimize by Alternative Surface Use V frac WQ frac Drilling / Fracturing V produced WQ produced T produced Produced Water Storage V disposal WQ produced T disposal Disposal V recycle Wq recycle C disposal Alternative Surface Use V surface WQ surface T surface T recycle Treatment V treatment WQ produced T treatment C treatment

10 Nomenclature V fresh WQ fresh T fresh V frac WQ fresh V produced WQ produced T produced V disposal T disposal V treatment T treatment V recycle WQ recycle T fresh V surface use WQ surface use T surface use C fresh C disposal C treatment C surface - volume of fresh water - value of particular WQ parameter for fresh water - transportation factor for fresh water (e.g. miles, hours or $/bbl) - volume of water needed for frac - value of particular WQ parameters required for frac - volume of produced water over specified time period - predicted WQ parameters for produced water from different well ages - transportation factor for produced water to storage (e.g. miles, hours or $/bbl) - volume of produced water to disposal well over a specified time period - transportation factor for produced water to disposal well (e.g. miles, hours or $/bbl) - volume of produced water sent to treatment - transportation factor for produced water to treatment facility (e.g. miles, hours or $/bbl) - volume of treated water sent to frac for recycling - value of particular WQ parameters after specified treatment - transportation factor for treated water to frac site (e.g. miles, hours or $/bbl) - volume of treated water sent to alternative surface uses including agriculture - value of particular WQ parameters required for alternative surface water use - transportation factor for treated water to alternative surface use (e.g. miles, hours or $/bbl) - cost of fresh water - cost of disposal - cost of treatment - cost of alternative surface reuse

11 Inputs Key Inputs a user would need handy to run the tools effectively. User inputs a) No. of Stages / TLL (Dev. Plan) b) Time Interval c) Location (Co-ordinates) Calibration data a) Historical Water Use b) Temporal / Spatial Decline Curves c) Frac fluid WQ tolerance limits

12 Freshwater Management Estimation of water required for drilling & completion Analyze historical data Summarize by Zone / Area / Development Plan / Campaign Spatially estimated water needs based on geointerpolation.

13 Water Use Tool Demonstration Input Final Estimated Output

14 Produced Water Management Analyzing water produced over defined time period for a single dataset Equations developed based on historical data analysis Summarize by Zone / Area / Development Plan / Campaign Spatially estimated water production based on geointerpolation. Temporally predicted. Spatial Analysis Temporal Prediction

15 Produced Water Modeler Demonstration Input Final Estimated Output

16 Produced Water Quality Modeler Analyzing water produced over time for a single dataset Spatial Analysis Equations developed based on historical data analysis Summarize by Zone / Area / Development Plan / Campaign Spatially estimated water quality based on geointerpolation. Temporally predicted.

17 Input Water Quality Tool Demonstration

18 Water Treatment Simulator Predicting aggregate water quality & volume based on well age and volume-weighted average Choosing between different treatment options -> Simulating water quality based on choice of treatment Upcoming Options: Methods Constituent Removal Percentage Coagulation/Filtration Fe 80% Softening/Clarification Reverse Osmosis (RO) Fe 98.6% Ca 97% Na 96.94% Cl 96.85% TDS 95.50% a. Treatment cost models b. Target based simulations

19 Input Water Treatment Simulator Demonstration

20 AQUAM Comprehensive Oilfield Water Management User friendly website Dedicated support for customization Completely web based tools which can be run on any portable device Desktop to Drill Site (D2D) Technology

21 Tools in development Cost & Transportation Optimization Pipeline Routing Optimization Fixed & Mobile Facility Location Optimization Disposal Well Selector

22 Transportation & Cost Optimization Produced Water Handling Treatment Facility (Fixed) Well Locations Geo Analyzed 1. Produced Water Volumes 2. Produced Water Quality Injection/Disposal Well

23 Cost Optimization Distance is based on distance between each well or a group of wells to a fixed treatment facility or a disposal well. Cost Inputs : (Based on facilities & transportation companies) $/ bbl Treatment $/ bbl Disposal $/ mile Trucking $/ hour - Travel Time Travel Time is calculated in real-time based on Network Analyst for the same as above. Costs are calculated for a set of $ inputs defined for constants mentioned to the left.

24 Inputs & Estimates User Inputs Costs (Freshwater, Treatment & Disposal) R reuse R surface Calculated Transportation (Freshwater, Treatment & Disposal) Volume (Fracwater, Produced Water, Surface Water) Water Quality (Freshwater, Fracwater, Produced, Treated, Recycled, Surface) R fresh

25 The Big Picture C fresh Water Management Technology Fresh Water Source V fresh WQ fresh T fresh Minimize by Alternative Surface Use V frac WQ frac Drilling / Fracturing V produced WQ produced T produced Produced Water Storage V disposal WQ produced T disposal Disposal V recycle Wq recycle C disposal Alternative Surface Use V surface WQ surface T surface T recycle Treatment V treatment WQ produced T treatment C treatment

26 Questions? C fresh Water Management Technology Fresh Water Source V fresh WQ fresh T fresh Minimize by Alternative Surface Use V frac WQ frac Drilling / Fracturing V produced WQ produced T produced Produced Water Storage V disposal WQ produce d Tdisposal Disposal V recycle Wq recycle C disposal T recycle V treatment WQ produced T treatment Alternative Surface Use V surface WQ surface T surface Treatment ashwin.dhanasekar@colostate.edu C treatment