Embed Size (px)
Citation preview
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
1AD/11-09-081-22W4M
• Sandstone reservoir • Coarsening upward sequence • Prograding shoreface • Capped by transgressive marine shale
33rd IEAEOR Symposium A u g u s t 2 6 - 3 0 , 2 0 1 2
I.R. 166
166RESERVE
WABASCA
BASCA INDIAN
RIVER
MU
SKEG
RIVER
WABASCA
MU
SKEG
RIVER
RIVER
282828282829292929293030303030
3131313131 3232323232 3333333333
252525252526262626262727272727282828282829292929293030303030
3131313131 3232323232 3333333333 3434343434 3535353535 3636363636
2525252525
3636363636
444445555566666
77777 88888 99999
161616161617171717171818181818
1919191919 2020202020 2121212121
282828282829292929293030303030
3131313131 3232323232 3333333333
111112222233333444445555566666
77777 88888 99999 1010101010 1111111111 1212121212
131313131314141414141515151515161616161617171717171818181818
1919191919 2020202020 2121212121 2222222222 2323232323 2424242424
252525252526262626262727272727282828282829292929293030303030
3131313131 3232323232 3333333333 3434343434 3535353535 3636363636
11111
1212121212
1313131313
2424242424
2525252525
3636363636
44444555556666611111222223333344444555556666611111
26262626262727272727282828282829292929293030303030
3131313131 3232323232 3333333333 3434343434 3535353535
252525252526262626262727272727282828282829292929293030303030
3131313131 3232323232 3333333333 3434343434 3535353535 3636363636
252525252526262626262727272727282828282829292929293030303030
3131313131 3232323232 3333333333 3434343434 3535353535 3636363636
252525252526262626262727272727282828282829292929293030303030
3131313131 3232323232 3333333333 3434343434 3535353535 3636363636
2222233333444445555566666
77777 88888 99999 1010101010 1111111111
14141414141515151515161616161617171717171818181818
1919191919 2020202020 2121212121 2222222222 2323232323
26262626262727272727282828282829292929293030303030
3131313131 3232323232 3333333333 3434343434 3535353535
111112222233333444445555566666
77777 88888 99999 1010101010 1111111111 1212121212
131313131314141414141515151515161616161617171717171818181818
1919191919 2020202020 2121212121 2222222222 2323232323 2424242424
252525252526262626262727272727282828282829292929293030303030
3131313131 3232323232 3333333333 3434343434 3535353535 3636363636
111112222233333444445555566666
77777 88888 99999 1010101010 1111111111 1212121212
131313131314141414141515151515161616161617171717171818181818
1919191919 2020202020 2121212121 2222222222 2323232323 2424242424
252525252526262626262727272727282828282829292929293030303030
3131313131 3232323232 3333333333 3434343434 3535353535 3636363636
111112222233333444445555566666
77777 88888 99999 1010101010 1111111111 1212121212
131313131314141414141515151515161616161617171717171818181818
1919191919 2020202020 2121212121 2222222222 2323232323 2424242424
252525252526262626262727272727282828282829292929293030303030
3131313131 3232323232 3333333333 3434343434 3535353535 3636363636
2222233333444445555566666111112222233333444445555566666111112222233333444445555566666111112222233333444445555566666
77777 88888 99999
161616161617171717171818181818
1919191919 2020202020 2121212121
282828282829292929293030303030
3131313131 3232323232 3333333333
77777 88888 99999 1010101010 1111111111 1212121212
131313131314141414141515151515161616161617171717171818181818
1919191919 2020202020 2121212121 2222222222 2323232323 2424242424
252525252526262626262727272727282828282829292929293030303030
3131313131 3232323232 3333333333 3434343434 3535353535 3636363636
1212121212
1313131313
2424242424
2525252525
3636363636
444445555566666
77777 88888 99999
161616161617171717171818181818
1919191919 2020202020 2121212121
282828282829292929293030303030
3131313131 3232323232 3333333333
111112222233333444445555566666
77777 88888 99999 1010101010 1111111111 1212121212
131313131314141414141515151515161616161617171717171818181818
1919191919 2020202020 2121212121 2222222222 2323232323 2424242424
252525252526262626262727272727282828282829292929293030303030
3131313131 3232323232 3333333333 3434343434 3535353535 3636363636
11111
1212121212
1313131313
2424242424
2525252525
3636363636
33333444445555566666
77777 88888 99999 1010101010
1515151515161616161617171717171818181818
1919191919 2020202020 2121212121 2222222222
111112222233333444445555566666
77777 88888 99999 1010101010 1111111111 1212121212
131313131314141414141515151515161616161617171717171818181818
1919191919 2020202020 2121212121 2222222222 2323232323 2424242424
77777 88888 99999 1010101010 1111111111
14141414141515151515161616161617171717171818181818
1919191919 2020202020 2121212121 2222222222 2323232323
26262626262727272727282828282829292929293030303030
3131313131 3232323232 3333333333 3434343434 3535353535
77777 88888 99999 1010101010 1111111111 1212121212
131313131314141414141515151515161616161617171717171818181818
1919191919 2020202020 2121212121 2222222222 2323232323 2424242424
252525252526262626262727272727282828282829292929293030303030
3131313131 3232323232 3333333333 3434343434 3535353535 3636363636
77777 88888 99999 1010101010 1111111111 1212121212
131313131314141414141515151515161616161617171717171818181818
1919191919 2020202020 2121212121 2222222222 2323232323 2424242424
252525252526262626262727272727282828282829292929293030303030
3131313131 3232323232 3333333333 3434343434 3535353535 3636363636
77777 88888 99999 1010101010 1111111111 1212121212
131313131314141414141515151515161616161617171717171818181818
1919191919 2020202020 2121212121 2222222222 2323232323 2424242424
252525252526262626262727272727282828282829292929293030303030
3131313131 3232323232 3333333333 3434343434 3535353535 3636363636
2222233333444445555566666
77777 88888 99999 1010101010 1111111111
14141414141515151515161616161617171717171818181818
1919191919 2020202020 2121212121 2222222222 2323232323
26262626262727272727282828282829292929293030303030
3131313131 3232323232 3333333333 3434343434 3535353535
111112222233333444445555566666
77777 88888 99999 1010101010 1111111111 1212121212
131313131314141414141515151515161616161617171717171818181818
1919191919 2020202020 2121212121 2222222222 2323232323 2424242424
252525252526262626262727272727282828282829292929293030303030
3131313131 3232323232 3333333333 3434343434 3535353535 3636363636
111112222233333444445555566666
77777 88888 99999 1010101010 1111111111 1212121212
131313131314141414141515151515161616161617171717171818181818
1919191919 2020202020 2121212121 2222222222 2323232323 2424242424
252525252526262626262727272727282828282829292929293030303030
3131313131 3232323232 3333333333 3434343434 3535353535 3636363636
111112222233333444445555566666
77777 88888 99999 1010101010 1111111111 1212121212
131313131314141414141515151515161616161617171717171818181818
1919191919 2020202020 2121212121 2222222222 2323232323 2424242424
252525252526262626262727272727282828282829292929293030303030
3131313131 3232323232 3333333333 3434343434 3535353535 3636363636
111112222233333444445555566666
77777 88888 99999 1010101010 1111111111 1212121212
131313131314141414141515151515161616161617171717171818181818
1919191919 2020202020 2121212121 2222222222 2323232323 2424242424
111112222233333444445555566666
77777 88888 99999 1010101010 1111111111 1212121212
131313131314141414141515151515161616161617171717171818181818
1919191919 2020202020 2121212121 2222222222 2323232323 2424242424
111112222233333444445555566666
77777 88888 99999 1010101010 1111111111 1212121212
131313131314141414141515151515161616161617171717171818181818
1919191919 2020202020 2121212121 2222222222 2323232323 2424242424
11111222223333344444
99999 1010101010 1111111111 1212121212
1313131313141414141415151515151616161616
2121212121 2222222222 2323232323 2424242424
80-80-19W480-20W480-21W480-22W480-23W4
81-81-19W4
82-82-19W4
83-18W483-19W4
81-20W481-21W481-22W481-23W4
82-20W482-21W482-22W482-23W4
83-20W483-21W483-22W483-23W4
10kmx10km
33rd IEAEOR Symposium A u g u s t 2 6 - 3 0 , 2 0 1 2
Main reservoir characteristics Depth 300-450m
Thickness 1-9m (5) Porosity 28-32%
Permeability 300-3000md OOIP Over 6 billion bbl
Temperature 12-17°C Initial pressure 1,800-2,600kPa
Oil gravity 11.5-16.5API Dead oil Viscosity 800-80,000cp
Depletion mechanism = solution gas drive
33rd IEAEOR Symposium A u g u s t 2 6 - 3 0 , 2 0 1 2
Typical vertical well production history
0
5
10
15
20
25
30
35
Dec-81 Dec-82 Dec-83 Dec-84 Dec-85 Dec-86 Dec-87 Dec-88
Oil
Rate
(bbl
/d)
Cumulative oil 27,700bbl
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
0
10
20
30
40
50
60
70
9-15 4-15 S0/3-15 1-15 16-10 9-10 5-10 3-17 2/7-20 12-21
Firs
t tw
elve
mon
ths
cum
ulat
ive
oil p
rodu
ctio
n (b
bl)
Best vertical well
1988
1989
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
0
100
200
300
400
500
600
Oct-95 May-96 Dec-96 Jun-97 Jan-98 Jul-98 Feb-99 Aug-99 Mar-00
Rate
(bbl
/d)
Injection
Production
33rd IEAEOR Symposium A u g u s t 2 6 - 3 0 , 2 0 1 2
Lessons from pilot • Good history match obtained by reducing
water relative permeability and introducing skin in wells
• Conclusions: • polymer viscosity does not need to be as high as
initially thought • Operational issues caused failure • Concept still valid
33rd IEAEOR Symposium A u g u s t 2 6 - 3 0 , 2 0 1 2
HORSETAIL LAKE
29292929293030303030
3131313131 3232323232
25252525252626262626272727272728282828282929292929
3232323232 3333333333 3434343434 3535353535 3636363636
5555566666
77777 88888
17171717171818181818
1111122222333334444455555
88888 99999 1010101010 1111111111 1212121212
13131313131414141414151515151516161616161717171717
North Horse Tail waterflood pilot
(2003)
33rd IEAEOR Symposium A u g u s t 2 6 - 3 0 , 2 0 1 2
0
10
20
30
40
50
60
70
80
90
100
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
9,000
10,000
Mar-97 Mar-98 Mar-99 Mar-00 Mar-01 Mar-02 Mar-03 Mar-04 Mar-05 Mar-06 Mar-07
Wat
er-c
ut (%
)
Oil
rate
(bbl
/d)
Begin water injection
33rd IEAEOR Symposium A u g u s t 2 6 - 3 0 , 2 0 1 2
HORSETAIL LAKE
29292929293030303030
3131313131 3232323232
25252525252626262626272727272728282828282929292929
3232323232 3333333333 3434343434 3535353535 3636363636
5555566666
77777 88888
17171717171818181818
1111122222333334444455555
88888 99999 1010101010 1111111111 1212121212
13131313131414141414151515151516161616161717171717
North Horse Tail waterflood pilot
(2003)
HTLP 6 polymer flood pilot
(2005)
33rd IEAEOR Symposium A u g u s t 2 6 - 3 0 , 2 0 1 2
• CNRL polymer flood pilot initiated in 2005
• 1500 m long horizontals • 200 m spacing
• Polymer • HPAM • 20MM (later reduced to 12MM) • Viscosity 20cp 13cp
• Injection: 1,000bbl/d/well initially
33rd IEAEOR Symposium A u g u s t 2 6 - 3 0 , 2 0 1 2
0
10
20
30
40
50
60
70
80
90
100
0
50
100
150
200
250
300
350
400
450
500
Wat
er-c
ut (%
)
Oil
rate
(bbl
/d)
Begin injection
14-34-081-22W4
33rd IEAEOR Symposium A u g u s t 2 6 - 3 0 , 2 0 1 2
0
10
20
30
40
50
60
70
80
90
100
0
50
100
150
200
250
300
350
400
450
500
Wat
er-c
ut (%
)
Oil
rate
(bbl
/d)
Begin injection
15-34-081-22W4
33rd IEAEOR Symposium A u g u s t 2 6 - 3 0 , 2 0 1 2
0
10
20
30
40
50
60
70
80
90
100
0
50
100
150
200
250
300
350
400
450
500
Wat
er-c
ut (%
)
Oil
rate
(bbl
/d)
Begin injection
16-34-081-22W4
33rd IEAEOR Symposium A u g u s t 2 6 - 3 0 , 2 0 1 2
(From CNRL, 2012)
Recovery up to 32%OOIP
33rd IEAEOR Symposium A u g u s t 2 6 - 3 0 , 2 0 1 2
(From Cenovus 2012)
33rd IEAEOR Symposium A u g u s t 2 6 - 3 0 , 2 0 1 2
HORSETAIL LAKE
29292929293030303030
3131313131 3232323232
25252525252626262626272727272728282828282929292929
3232323232 3333333333 3434343434 3535353535 3636363636
5555566666
77777 88888
17171717171818181818
1111122222333334444455555
88888 99999 1010101010 1111111111 1212121212
13131313131414141414151515151516161616161717171717
North Horse Tail waterflood pilot
HTLP 6 polymer flood pilot
Multi-lateral Polymer pilot
33rd IEAEOR Symposium A u g u s t 2 6 - 3 0 , 2 0 1 2
Apr 2011
Dec 2007 Dec 2007 Dec 2007 Dec 2010 Dec 2010
33rd IEAEOR Symposium A u g u s t 2 6 - 3 0 , 2 0 1 2
0
10
20
30
40
50
60
70
80
90
100
0
100
200
300
400
500
600
700
800
900
1000
Oct-95 Jul-98 Apr-01 Jan-04 Oct-06 Jul-09 Apr-12 Dec-14
Wat
er-c
ut (%
)
Oil
rate
(bbl
/d)
Begin first injection
Begin second injection Cum oil > 1.65MMbbl
33rd IEAEOR Symposium A u g u s t 2 6 - 3 0 , 2 0 1 2
1
10
100
1,000
10,000
100,000
Oil
rate
(bbl
/d) a
nd w
ell c
ount
Pelican Lake pool production history
Vertical wells
Horizontal and multi-lateral wells
Waterflood
Oil Well count
Waterflood +polymer flood
CS Resources Polymer pilot
CNRL Polymer pilot
33rd IEAEOR Symposium A u g u s t 2 6 - 3 0 , 2 0 1 2
Conclusions • Applying right technology has made a huge
difference in Pelican Lake • Polymer flood of viscous oil is possible and proven • Recovery increased to over 30%OOIP in high
viscosity oil (<2,500cp) • Another technology is required to get to the next
level
THANK YOU
