taming the spraberry goke dabiri texas a&m university pioneer natural resources
Post on 21-Dec-2015
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![Page 1: TAMING THE SPRABERRY Goke Dabiri Texas A&M University Pioneer Natural Resources](https://reader030.vdocuments.us/reader030/viewer/2022032521/56649d595503460f94a38756/html5/thumbnails/1.jpg)
TAMING THE SPRABERRY
Goke DabiriTexas A&M University
Pioneer Natural Resources
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Background Information
Glasscock Co
Reagan CoUpton Co
Midland Co
Martin Co Borden Co
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O'Daniel O'Daniel O'Brian
O'DanielO'Daniel Brunson Boone
O'BrianPowellFloyd
35
33
B-1
D-1
C-1
5
7
12
9 13
10
63
9
8 12
7
A-1
B-1
1
A-5
BooneE-1 A-6
A-3 A-7
32
12
8W
34
6
1
24
31
36
26
D-1
19
13
30G-1
C-2E-1
BooneA-1
D-1 A-1
F-1
C-1
C-1
1
D-1
3 2
47
25
29
37
46
C-1
28
45
38
39
40
48
14
41
43
49
50
44
429w 4w
11w 17 ET3
w7
23
Floyd 7w
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Problem Definition
<10% Oil Recovery in 50 years!Complex fracture systemHuge Kfx/Kfy Ratio (17,000md/100md !)Conventional Waterfloding???
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Field Production Indicator…….
0
50
100
150
200
250
BOPD (7 On-Trend Wells) BOPD (23 Off-Trend Wells)
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Spraberry FractureSystem Schematic
Average fracture spacing3.17 ft (N42E)
Average fracture spacing1.62 and 3.8 ft (N32E and N80E)
Pay zone, 5USiltstone,
Vshl<15%,f>7%
Pay zone,1USiltstone,
Vshl<15%,f>7%
Non-pay zone,2U,3U, and 4U
Siltstone+Dolomite,
Vshl<15%, f <7%
Sand layer1U (10 ft)
Sand layer5U (15 ft)
Shale layer(140 ft)
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Grid --> 70 x 80 x 3(*2) Grid orientation? PVT and petrophysical data Dual porosity Geological input Oil production constraint Injectors, producers...
0.25miles
Simulation Model Setup
23 1C 21
3325i
29
27
7w
DA1
17ET3
ET2
ET1
20w
29w 4w
14w
11w
FLOYD 7w
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23 1C 21
33 25i
29
27
7w
DA117
ET3
ET2
ET1
20w
29w 4w
14W
11w
FLOYD 7w
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7w
P1P2
P3
P4
P5
P7
P6
40 Acres Spacing
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7w
P1P2
P3
P4
P5
P7
P6
80 Acres Spacing
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7w
P1P2
P3
P4
P5
P7
P6
120 Acres Spacing
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Conclusions………..
Fracture enhancement is preferred to grid orientation
It is important to determine the angles and distances of the Injectors and Producers Relative to the Predominant Fractures
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Gracias !
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BACKUP SLIDES ARE AFTER THIS
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23 1C21
3325i
29
27
7w
DA1
17ET3
ET2
ET1
No Fracture Enhancement
Fracture Enhancement
Field History
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23 1C 21
33 25i
29
27
7w
DA117
ET3
ET2
ET1
20w
29w 4w
14W
11w
FLOYD 7w
No Fracture Enhancement
Fracture Enhancement
Field History
Refined Model
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23 1C 21
33 25i
29
27
7w
DA117
ET3
ET2
ET1
20w
29w 4w
14W
11w
FLOYD 7w