Carpinteria Field Carpinteria Field WaterfloodWaterflood
AgendaAgenda
• Objective• Phillips injection results• Geologic aspects of waterflood• Injection water supply
o Quantityo Quality
• Water treatment• Injection equipment
Waterflood ObjectiveWaterflood Objective
• OCS-P 0166
• Increase Oil Recovery by 10 to 15% of OOIP
• 16 – 20 MM bbls additional oil recovery
Carpinteria Offshore FieldCarpinteria Offshore Field
Waterflood ObjectiveWaterflood Objective
• OCS-P 0166
• Increase Oil Recovery by 10% of OOIP
• 16 – 20 MM bbls additional oil recovery
Waterflood ObjectiveWaterflood Objective
• OCS-P 0166
• Increase Oil Recovery by 10% of OOIP
• 16 – 20 MM bbls additional oil recovery
OOIP DataOOIP Data
Date Source OOIP(MM bbls)
Method
1968 Phillips 227181
VolumetricVolumetric
1998 PACOPS 157 Volumetric
166 Material Balance
2008 PACOPS 161-198 Decline Curve
The Phillips Water Disposal ProgramThe Phillips Water Disposal Program
• Pilot Disposal Test March – June 1973 217,846 bbls into Well A-32
• 5-year Limited SWD 1973 - 1978 12,000,000 bbls into 5 Wells 300,000 – 500,000 STB from 8 offset producers Severe channelingOil recovery was not maximized
• Enhanced oil recovery study 1983.
The Phillips Water Disposal ProgramThe Phillips Water Disposal Program
• Pilot Disposal Test March – June 1973 217,846 bbls into Well A-32
• 5-year Limited SWD 1973 - 1978 12,000,000 bbls into 5 Wells 300,000 – 500,000 STB from 8 offset producers Severe channelingOil recovery was not maximized
• Enhanced oil recovery study 1983.
The Phillips Water Disposal ProgramThe Phillips Water Disposal Program
• Pilot Disposal Test March – June 1973 217,846 bbls into Well A-32
• 5-year Limited SWD 1973 - 1978 12,000,000 bbls into 5 Wells 300,000 – 500,000 STB from 8 offset producers Severe channelingOil recovery was not maximized
• Enhanced oil recovery study 1983.
Repetto Producing SandsRepetto Producing Sands
Water Injection Wells, Top of F-1Water Injection Wells, Top of F-1
Water Injection Wells, Top of F-1Water Injection Wells, Top of F-1
Block MBlock M
Cross Section - Block MCross Section - Block M
South NorthA-2A-4
A-46ST1
A-1ST1
A-49WB1
A-43ST1
A-52ST1
F-1
F-3
F-2
F-4
Block – M Log ComparisonBlock – M Log ComparisonA-2 A-4 A-46ST1 A-52ST1
SWD System at La Conchita PlantSWD System at La Conchita Plant
SWDRetention Tank
Quintaplex Pumps
Mixing Tank
Media Filters
To 4” line
SWD Rates Discharge to OceanSWD Rates Discharge to Ocean(250 total days from 6/2007 to 2/2008)
0
20
40
60
80
100
120
1
Num
ber o
f Day
sN
umbe
r of D
ays
52
62
52
3
14
110
44%
21% 25%Num
ber
of D
ays
Barrels per Day
Injection Water QualityInjection Water Quality
• Total Suspended Solids (TSS) Around 1 micron or less
• Critical Cations Calcium 66 ppm Barite unmeasurable Magnesium 80 ppm
• Other 0.5 ppm or less H2S 0.37 ppm dissolved O2
Water TreatmentWater Treatment
• Scale Inhibitor LSI: 0.4 – 1.53
• Biocide SRBs
• Corrosion Inhibitor Treat
• Oxygen scavenger TBD
Equipment Layout at Platform HoganEquipment Layout at Platform Hogan
Sampling point
ChemicalInjection
Centrifugalpump
Flowmeter
Low level
High level
VariableChoke Variable
Choke
4” line from La Conchita Plant
DisposalTube
Stabilizing Tank
Flow Control
Filter Bank
Pres
sure
gau
ge
Pressure gauge
Pressure gauge
Pressure gauge
Pressure gauge
Water Injection Wellhead and Manifold LayoutWater Injection Wellhead and Manifold Layout
3” Master Valve
3” Well Manifold
Kerotest valve
Pressure gauge
Sampling point
3” Actuated Wing Valve 3” Crown Valve
Flow Tee or Cross
3” Choke Valve
3” Manifold Isolation Valve (MIV) 3” Bowen Union
Continuous Electronic Pressure Monitor
Continuous ElectronicFlowmeter
61 MM
52 MM
EL
OPEX $1.5 MM/MoOil Price $75/bbl
68 MM52 MM
EL
