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An Integrated Geological and Geophysical Interpretation of the San Carlos Basin, Costa Rica

  • Lesmes E. Ballestero C.
  • Mihaela M. Dobrinescu
  • Gerardo C. Jager
  • Ian R. Mayers
Part of the Circum-Pacific Council for Energy and Mineral Resources Earth Science Series book series (CIRCUM-PACIFIC, volume 16)

Abstract

Hydrocarbon exploration began in Costa Rica with Sinclair Corporation’s five well program of 1916–1923. Since then geological, geochemical, potential field, land, and marine seismic surveys have been made with 49 stratigraphic and exploration wells drilled, the majority of these in the Limon Sur basin. Some intriguing non-commercial oil and gas shows were encountered.

The San Carlos basin in northern Costa Rica was considered prospective and made an objective of the 1986–1989 RECOPEPCIAC exploration/technical assistance program. Building on sparse geological information and new potential field interpretations, 600 km of dynamite, multifold reflection and 50+ km of refraction seismic surveys were conducted there. These data were interpreted, along with older information, and drill hole locations were selected. These stratigraphic wells at Pataste No. 1 and Tonjibe No. 1 (Figure 1) were finished in November, 1987, and January, 1988, respectively. They significantly increased the understanding of the basin.

Keywords

Source Rock Cocos Plate Geophysical Interpretation Refraction Seismic Survey Blue Reflector 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References Cited

  1. Calvo, C., and A. Bolz, 1987, La secuencia de Venado, un estuario lagunar tropical del Mioceno medio, San Carlos, Costa Rica: Revista Geologica America Central, v. 6, p. 1–24.Google Scholar
  2. Mora, C. S., 1981, Clasificación morfotectónica de Costa Rica: San José, Instituto Geografico Nacional de Costa Rica, Informe Semestral, v. 2, p. 35–55.Google Scholar
  3. Montero, W., and J. W. Dewey, 1982, Shallow-focus seismicityGoogle Scholar
  4. composite focal mechanisms and tectonics of the Valle Central, Costa Rica: Bulletin of the Seismological Society of America, v. 71,p. 1611–1626.Google Scholar
  5. Obando, L. G., 1986, Estratigrafía de la Formación Venado y rocas sobreyacentes (Mioceno-Reciente), Provincia de Alajuela, Costa Rica: Revista Geologica America Central, v. 5, p. 73–104.Google Scholar
  6. WAI Staff, 1988, Synthesis report on the hydrocarbon potential of Costa Rica: Houston, Proprietary report prepared for RECOPE but now available for purchase, 200+ p.Google Scholar

Copyright information

© Circum-Pacific Council for Energy and Mineral Resources 1995

Authors and Affiliations

  • Lesmes E. Ballestero C.
    • 1
  • Mihaela M. Dobrinescu
    • 1
  • Gerardo C. Jager
    • 1
  • Ian R. Mayers
    • 2
  1. 1.Refinadora Costarricense de Petróleo, S. A. (RECOPE)San JoséCosta Rica
  2. 2.Petro-Canada International Assistance Corporation (PCIAC)CalgaryCanada

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