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Carpinteria Field Waterflood. Agenda Objective Phillips injection results Geologic aspects of waterflood Injection water supply o Quantity o Quality Water

Mar 26, 2015

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Carpinteria Field Waterflood Slide 2 Agenda Objective Phillips injection results Geologic aspects of waterflood Injection water supply o Quantity o Quality Water treatment Injection equipment Slide 3 Waterflood Objective OCS-P 0166 Increase Oil Recovery by 10 to 15% of OOIP 16 20 MM bbls additional oil recovery Slide 4 Carpinteria Offshore Field Slide 5 Waterflood Objective OCS-P 0166 Increase Oil Recovery by 10% of OOIP 16 20 MM bbls additional oil recovery Slide 6 Waterflood Objective OCS-P 0166 Increase Oil Recovery by 10% of OOIP 16 20 MM bbls additional oil recovery Slide 7 OOIP Data DateSourceOOIP (MM bbls) Method 1968Phillips227 181 Volumetric 1998PACOPS157Volumetric 166Material Balance 2008PACOPS161-198Decline Curve Slide 8 The 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 channeling Oil recovery was not maximized Enhanced oil recovery study 1983. Slide 9 The 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 channeling Oil recovery was not maximized Enhanced oil recovery study 1983. Slide 10 The 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 channeling Oil recovery was not maximized Enhanced oil recovery study 1983. Slide 11 Repetto Producing Sands Slide 12 Water Injection Wells, Top of F-1 Slide 13 Slide 14 Block M Slide 15 Cross Section - Block M South North A-2 A-4 A-46ST1 A-1ST1 A-49WB1 A-43ST1 A-52ST1 F-1 F-3 F-2 F-4 Slide 16 Block M Log Comparison A-2A-4 A-46ST1A-52ST1 Slide 17 SWD System at La Conchita Plant SWD Retention Tank Quintaplex Pumps Mixing Tank Media Filters To 4 line Slide 18 SWD Rates Discharge to Ocean (250 total days from 6/2007 to 2/2008) 5 2 62 52 3 14 110 44% 21% 25% Number of Days Barrels per Day Slide 19 Injection 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 H 2 S 0.37 ppm dissolved O 2 Slide 20 Water Treatment Scale Inhibitor LSI: 0.4 1.53 Biocide SRBs Corrosion Inhibitor Treat Oxygen scavenger TBD Slide 21 Equipment Layout at Platform Hogan Sampling point Chemical Injection Centrifugal pump Flow meter Low level High level Variable Choke Variable Choke 4 line from La Conchita Plant Disposal Tube Stabilizing Tank Flow Control Filter Bank Pressure gauge Slide 22 Water 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 Electronic Flowmeter Slide 23 Slide 24 Slide 25 61 MM 52 MM EL OPEX $1.5 MM/Mo Oil Price $75/bbl Slide 26 68 MM 52 MM EL