Galoc_Home
 
 

 


  • Sub-block of Service Contract 14, a 70 thousand hectare area located Northwest Palawan, awarded 17 December 1975

  • 1st for Philippines
    - Sandstone reservoir development in the Philippines
    - Development utilizing multiple horizontal wells
    - Offshore oil field development in Philippine waters in the   last 15 years

  • Development in 290m of water over 50km to nearest land, using:
    - 2 horizontal subsea wells
    - Innovative subsea layout
    - Single leg multi riser mooring system
    - Floating Production, Storage and Offloading (FPSO) vessel with dynamic positioning assistance

  • Estimated reserves of approximately 10 million barrels – most likely case

  • Estimated project cost of US$120 million


Aug 2005
 Department of Energy (DOE) approved GPC’s farm-in to Service Contract 14-C (SC14-C) Galoc Sub Block
Nov 2005
 DOE confirms GPC as Operator of SC14-C Galoc Sub Block
Dec 2005
 Well engineering and construction management contract awarded – Advanced Well Technologies
Mar 2006
Plan of Development involving Extended Production Test (EPT) approved by the DOE
Aug 2006

Environmental Compliance Certificate issued by the Department of Environment and Natural Resources (DENR)

Drill rig contract awarded – Jet Drilling
Sep 2006
 Floating production, storage and offloading (FPSO) unit contract awarded – Rubicon Offshore International
Dec 2006
 Strategic Environmental Plan Clearance issued by the Palawan Council for Sustainable Development
Jul 2007
 Installation contract awarded - EMAS
Oct 2007

Arrival of drill ship Energy Searcher and commencement of well construction / drilling
2Q 2008

Commencement of equipment installation on seabed, 290m below the surface

Arrival of the FPSO, commencement of hook up & commissioning

3Q 2008

1st oil & Commencement of Extended Production Test

Monitoring and testing of reservoir performance

Assessment of ultimate potential
4Q 2008

Completion of EPT Assessment of forward program for field.

The Galoc Oil Field (Galoc) is located 60 km northwest of Palawan within the Department of Energy (DOE) Service Contract 14. Discovered by Cities Services in 1981, Galoc is the first oil discovery in sandstone reservoir in the Philippines. All other commercial production to date has been derived from limestone reservoirs.

Water depth at Galoc ranges from 290 to 400m with the oil located in a turbidite sandstone reservoir at a depth of approximately 2,100m below the sea surface.

Galoc Field Location and History


Appraisal was conducted in 1988 with a vertical well and 2 sidetracks that produced nearly 400,000 barrels of sweet (low sulphur content) 35o API oil with flow rates up to 5,000 barrels per day (bpd). These rates were deemed insufficient to support commercial development at that time.

Galoc Geology
Reservoir Top Structure –
Oil water contact at 2100m below sea surface


Since then data from the 1988 appraisal have been extensively re-evaluated and higher quality 3-D seismic data was obtained in 1997. The outcome of this has been recognition of a channelised turbidite reservoir within the field. This combined with improvements in technology enabling the drilling of wells to increase access to the reservoir, and facilities capable of producing and handling the fluids, has made commercial development viable.

This was the basis of the Plan of Development approved by the DOE in March 2006.
 
The most likely economically recoverable reserves are estimated to be 10 million barrels (mmbbls). However, there is a substantial range of uncertainty in this figure.