33 rd IEAEOR Symposium A u g u s t 2 6 - 3 0 , 2 0 1 2 Presenter’s Name Paper Title & Session Date 1. Eric Delamaide 2. Co-authors: 1. Alain Zaitoun 2. Gérard Renard 3. René Tabary 1. Pelican Lake Polymer Flood Success Story: A Significant Breakthrough in Heavy Oil Reservoir Exploitation 2. Monday Aug. 27 th , 2012
30
Embed
33rd IEAEOR Symposiumiea-eor.ptrc.ca/2012/assets/s2/9 -Delamaide_Session 2_SLIDES.pdf · Outline of the presentation • Main reservoir characteristics ... • Horizontal drilling
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
33rd IEAEOR Symposium A u g u s t 2 6 - 3 0 , 2 0 1 2
Presenter’s Name
Paper Title & Session Date
1. Eric Delamaide 2. Co-authors:
1. Alain Zaitoun 2. Gérard Renard 3. René Tabary
1. Pelican Lake Polymer Flood Success Story: A Significant Breakthrough in Heavy Oil Reservoir Exploitation
2. Monday Aug. 27th, 2012
33rd IEAEOR Symposium A u g u s t 2 6 - 3 0 , 2 0 1 2
Outline of the presentation • Main reservoir characteristics • Early development • Horizontal drilling • CS Resources polymer flood pilot • CNRL polymer flood pilot • Polymer flood extension • Conclusions
33rd IEAEOR Symposium A u g u s t 2 6 - 3 0 , 2 0 1 2
Alberta
33rd IEAEOR Symposium A u g u s t 2 6 - 3 0 , 2 0 1 2
(From McPhee, 1998)
33rd IEAEOR Symposium A u g u s t 2 6 - 3 0 , 2 0 1 2
33rd IEAEOR Symposium A u g u s t 2 6 - 3 0 , 2 0 1 2
• Over 200 vertical wells drilled with disappointing results
• Average cum 28,000bbl • Various thermal EOR techniques (steam, air
injection) tried to no avail... • Then horizontal wells were introduced by CS
Resources/Elf/IFP in 1988 • Result: increased reservoir exposure/well
33rd IEAEOR Symposium A u g u s t 2 6 - 3 0 , 2 0 1 2
• First horizontal wells drilled in 1988 • Among first horizontal wells anywhere • Initially 500m long • Length increased progressively in 1990/91 • Costs diminished
(Renard et al, 1997)
33rd IEAEOR Symposium A u g u s t 2 6 - 3 0 , 2 0 1 2
33rd IEAEOR Symposium A u g u s t 2 6 - 3 0 , 2 0 1 2
• Horizontal drilling evolved into multilateral drilling (1991) • Reservoir exposure per well increased • Still recovery factor remained low (5-7%OOIP) • So in 1995 CS Resources initiated first polymer pilot
10,833m
33rd IEAEOR Symposium A u g u s t 2 6 - 3 0 , 2 0 1 2
Good conditions in Pelican Lake for polymer: Low salinity Low temperature No aquifer High permeability X High viscosity horizontal wells
Polymer used: HPAM (13.6MM Mw) – 2,000ppm – 100cp
33rd IEAEOR Symposium A u g u s t 2 6 - 3 0 , 2 0 1 2
02/01-05 00/01-05 03/01-05
1250 m
150 m
33rd IEAEOR Symposium A u g u s t 2 6 - 3 0 , 2 0 1 2
• Pilot suffered from operational problems (iron, sanding) • Injectivity declined despite reducing polymer concentration and shifting to water