[PPT] - More on KURC EUR September 2015 2 KURC-1 K APPA U nconventional PowerPoint Presentation

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More on KURC…

September 2015

EUR

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KAPPA Unconventional Resources Consortium
28 effective members; 4 more potentially
Data analysis of unconventional plays
Phase 1 from July 2011 to January 2014
Development of the KURC Application
3-year exclusivity to consortium members
150,000 € per participant

KURC-1

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28 participants (+3?)

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Budget and expenses

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KURC application

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KURC application

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Main KURC-1 developments

1. Loglog analysis tools (*)
2. Fast analytical / numerical: SRV, trilinear (*)
3. Complex geometries (*)
4. Generalized pseudofunctions (*)
5. Discrete Fractures Networks (DFN)
6. Water flowback
7. Single well statistical EUR
8. Import Microseismic results
9. Import Fracturing software results

10.Confined PVT

(*) public in Q2-2016

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1 – Loglog analysis tools

k Lw x Xf k x N² x Xf²

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2 – Fast models (e.g. SRV)

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3 - Complex models

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4 – Pseudofunctions

Pseudopressure correction
m(p), Z(p)
k(p)
Pseudotime correction
c(p*(t))
F(p*(t))
Desorption

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5 - Analytical / numerical DFN

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6 – Water flowback

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7 - Statistical EUR

EUR

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8 – Import from microseismics

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9 – Import from fracturing sft.

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10 - Confined PVT

0.0 400.0 800.0 1200.0 1600.0 0.0 200.0 400.0 600.0 800.0 Conventional 10 nm

Eagle Ford Oil

11 components Confinement = 10 nm pore radius Validated against CSM models

7.00E-02 7.40E-02 7.80E-02 500 1000 1500 2000 10 nm Conventional

Temperature (oF) Pressure (psia) Pressure (psia) Viscosity (cp)

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2015 extension: KURC-2

KURC-1 membership as pre-requisite
Topics discussed with KURC-1 members
From January 2015 to December 2016
50,000 € for KURC-1 member
200,000 € for new members (incl. KURC-1)

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KURC-2 workflow

Simulation model History match Forecast U.A. DFN Flow mech. + I.S. + confined PVT + geomechanics Microseismics Fracture simulation

Constrain DFN realizations to interference times

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Main KURC-2 developments

1. Multiple well interferences in DFN’s
2. Fast Marching methods for DFN’s
3. Complex well schedules (*)
4. 3-D DFN’s
5. Stochastic DFN’s from Microseismics
6. Connection to Geomechanics software
7. Enhanced permeability regions
8. Adapted multiphace wellbore model for CSG

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1 – DFN interferences

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2 – Fast Marching

Simulation models History match

Constrain DFN realizations to interference times

FMM

DFN realizations

FMM

DFN realizations Interference times

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3 – Complex well schedules

Simulate water injection period prior to production
Assumption : Inject in pre-existing fracture planes, with Fc(P) curves

 Start production from perturbed initial {P, S} fields  Evaluate flowback

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4 – 3D DFN’s

WIP

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5 – DFN from Microseismics

3D

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6 – Geomechanics

Flow module (with pressure –dependent k and )

Geomechanical module time T0 T1 T2 … P k, At the end of each exchange time increment :

Mechanical module reads in new pore pressures
Mechanical module calculates new stresses and induced deformations
Mechanical module (or flow module) computes new permeability/porosities from the

knowledge of strains/effective stresses

Flow module reads in the new flow properties and use it in computations for the next

time increment

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7 – Enhanced k regions

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8 – CSG wellbore model

from Justin Knight and Tim Whittle, BG