ESTANCIA DOS LAGUNAS: PRODUCING GAS AND CONDENSATE FROM A VOLCANIC ROCK IN THE ARGENTINEAN AUSTRAL BASIN
Venara, Leandro Bahl Chambi, Gloria Cremonini, Andrés Limeres, Marcelo
ESTANCIA DOS LAGUNAS: PRODUCING GAS AND CONDENSATE FROM A VOLCANIC ROCK IN THE ARGENTINEAN AUSTRAL BASIN - 16 p.
Trabajo presentado en el 24 WGC. Disponible en CD en la biblioteca. Solicite este trabajo por email a biblio@iapg.org.ar
The development and production behavior of an unconventional reservoir is presented. The Estancia Dos Lagunas gas field was discovered in 1999 by Petrolera Argentina San Jorge. The field is located in the South of Argentina (Santa Cruz Province), in the Austral Basin. The structure was developed with the drilling of 16 wells, most of them producing from the Serie Tobífera. This unit is composed of volcanic and volcaniclastic rocks deposited during the rifting stage of the basin. Historically, the Serie Tobífera was considered the economic basement of the basin. However, in some cases these volcanic rocks have good reservoir properties due to primary and secondary processes. The characterization of this unconventional reservoir is far from being understood applying conventional log analysis and seismic interpretation. Therefore, the reservoir analysis has to be done using all the available information (seismic data, electrical logs, mud logging, core analyses, production tests and pressure data). The comparison of the static information with the actual dynamic behavior of the wells helps gaining a better understanding of the field. Finally, the dynamic and well production behaviors are analyzed. Lessons learned can be used for analog developments
ESTANCIA DOS LAGUNAS: PRODUCING GAS AND CONDENSATE FROM A VOLCANIC ROCK IN THE ARGENTINEAN AUSTRAL BASIN - 16 p.
Trabajo presentado en el 24 WGC. Disponible en CD en la biblioteca. Solicite este trabajo por email a biblio@iapg.org.ar
The development and production behavior of an unconventional reservoir is presented. The Estancia Dos Lagunas gas field was discovered in 1999 by Petrolera Argentina San Jorge. The field is located in the South of Argentina (Santa Cruz Province), in the Austral Basin. The structure was developed with the drilling of 16 wells, most of them producing from the Serie Tobífera. This unit is composed of volcanic and volcaniclastic rocks deposited during the rifting stage of the basin. Historically, the Serie Tobífera was considered the economic basement of the basin. However, in some cases these volcanic rocks have good reservoir properties due to primary and secondary processes. The characterization of this unconventional reservoir is far from being understood applying conventional log analysis and seismic interpretation. Therefore, the reservoir analysis has to be done using all the available information (seismic data, electrical logs, mud logging, core analyses, production tests and pressure data). The comparison of the static information with the actual dynamic behavior of the wells helps gaining a better understanding of the field. Finally, the dynamic and well production behaviors are analyzed. Lessons learned can be used for analog developments
