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PACIFIC OPERATORS OFFSHORE, INC.

PACIFIC OPERATORS OFFSHORE, INC. CARPINTERIA FIELD. CARPINTERIA FIELD OFFSHORE CALIFORNIA. RINCON TREND STRUCTURE CONTOURS. Platform Hogan. Platform Houchin. (Reprinted in Sylvester and Brown, 1997, Coast Geological Society). CARPINTERIA OFFSHORE FIELD.

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PACIFIC OPERATORS OFFSHORE, INC.

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  1. PACIFIC OPERATORS OFFSHORE, INC. CARPINTERIA FIELD

  2. CARPINTERIA FIELD OFFSHORE CALIFORNIA

  3. RINCON TREND STRUCTURE CONTOURS Platform Hogan Platform Houchin (Reprinted in Sylvester and Brown, 1997, Coast Geological Society)

  4. CARPINTERIA OFFSHORE FIELD Cal. PRC 7911 HEIDI HOPE Cal. PRC 4000 HOUCHIN HENRY HOGAN AREA OF INITIAL REDEVELOPMENT Cal. PRC 3133 OCS-P 0240 OCS-P 0166

  5. 3-D MODEL OF CARPINTERIA FIELD VIEW LOOKS NORTHEAST

  6. 3-D MODEL SHOWING HOBSON FAULT VIEW LOOKS SOUTHEAST

  7. LONGITUDINAL SECTION THROUGH CAPRINTERIA FIELD EAST WEST PLATFORM HOGAN

  8. STRUCTURE CONTOURS ON TOP F1 ZONE CONTOUR INTERVAL 100 FT PRC 7911 PRC 4000 OCS-P 0166 PLATFORM HOGAN PLATFORM HOUCHIN

  9. VENTURA BASIN STRATIGRAPHIC COLUMN OLIG. PLEISTOCENE EOCENE PLIOCENE SECTION PENETRATED AT CARPINTERIA FIELD MAIN PRODUCTIVE INTERVAL PRODUCED UK SHOWS MIOCENE

  10. CARPINTERIA FIELD TYPE LOG PLATFORM HOGAN “E” SERIES “G” SERIES “F” SERIES

  11. HOGAN MONTHLY PRODUCTION BEFORE PURCHASE PEAK PRODUCTION 403,934 Bbl/mo October, 1968 WATER PURCHASE BY SIGNAL 18,738 Bbl/mo July, 1990 OIL

  12. OPPORTUNITIES • Workovers • Continue conversion from gas lift to rod pumps • Waterflood by 1993…. • Strategic redrilling

  13. GEOLOGIC CHALLENGES • Co-mingled production • Hard to allocate production among zones • Sparse core data • Most porosity/permeability data from logs • Sparse pressure data • Can’t use pressure regimes to establish fault blocks • Few dipmeters • Little help in locating faults • Inclined oil/water contacts • Confuses fault interpretation

  14. CARPINTERIA FIELD OIL-WATER CONTACTS

  15. STRATEGIES • Improve production with workovers/RTPs • Prepare for waterflood and redrills • Geologic and petrophysical studies • Participate in Department of Energy programs • Advanced Reservoir Management project - geologic and reservoir studies • Class III - financial assistance with redrills • Leverage resources through technology • Digitize well logs and field reports • Link employees and consultants electronically • Use 3-D computer modeling

  16. CARPINTERIA PROJECT Detailed Log CorrelationUsing True StratigraphicThickness Traces in AutoCad-LT

  17. SATURATION CONDITION OF F4 ZONE WELLS Direction of Axial Plunge FULL OIL COLUMN PROBABLE FAULT OIL / WATER CONTACT WET INTERVAL

  18. CONTOURS ON TOP F1 and CONTOURS ON F1 O/W CONTACT Lease P-0166 A52 AREA 1 AREA 2

  19. PLANNED REDRILL WELL PATH A48WB01 F1 ZONE

  20. 3 D MODEL VIEW OF 1999 CARPINTERIA FIELD REDRILL PROGRAM WELLS

  21. RELATIONSHIP OF REDRILL PROGRAM TO EXISTING WELLS EAST HOGAN AREA REDRILL BOREHOLE EXISTING BOREHOLE

  22. COLLISION AVOIDANCE USING 3-D MODEL

  23. CARPINTERIA FIELD DEPOSITIONAL SETTING Carpinteria Field Location

  24. EXAMPLE DUAL INDUCTION LOG Well A48 Zone F3 SP RESISTIVITY F3 ZONE SAND SHALE

  25. CROSS SECTION ALONG PATH OF REDRILL A49WB01

  26. A44WB02 A49WB01 A43WB01 A14WB01 Platform Hogan A22WB01 A48WB02 Zone F1 Zone F2 Zone F3 Multiple zones RESULTS OF 1998 REDRILL PROGRAM SHOWING REDRILL TRAJECTORIES AND COMPLETED INTERVALS

  27. REDRILL PROGRAM 14,721 Bbl/mo Increase PURCHASE HOGAN MONTHLY PRODUCTION SINCE PURCHASE

  28. WHAT’S NEXT? • MORE THAN 30 SIMILAR REDRILL PROJECTS ARE AVAILABLE FROM PLATFORMS HOGAN AND HOUCHIN • GRASS ROOTS HORIZONTALS ARE BEING STUDIED BELOW HOBSON FAULT AND INTO NEIGHBORING STATE LEASES • DEEP POSSIBILITIES EXIST IN OLDER MIOCENE SECTIONS

  29. NOT THE END……..

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