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Título del libro: Canadian International Petroleum Conference 2004, Cipc 2004
Título del capítulo: A strategic gas field development case in sandstones using seismic amplitudes and dynamic characterization

Autores UNAM:
JORGE ALBERTO AREVALO VILLAGRAN; HEBER CINCO LEY; NESTOR MARTINEZ ROMERO;
Autores externos:

Idioma:
Inglés
Año de publicación:
2004
Palabras clave:

Gas industry; Gases; Gasoline; Petroleum reservoir evaluation; Planning; Quality control; Sandstone; Seismology; Dynamic characterization; Field development; Gas field development; Hydraulic communication; Original gas in places; Production data analysis; Reservoir dynamics; Seismic amplitudes; Proven reserves


Resumen:

The objective of this paper is to present a process for improving the planning of gas field development. We discuss how seismic amplitudes and dynamic characterization can be combined to help optimize gas field development. The main concepts, methodologies, and tools, as results obtained are shown for an actual Mexican gas field. A series of amplitude seismic maps were constructed by using 3D seiesmic interpretation. These maprs were the essential part for detecting significant volumes of gas in place. Afterwards, calibrations of these maps with production data used in reserve evaluation studies, resulted in a low risk development strategy for the field. The example gas field is comprised of three producing sandstones at different depths (E, G, and M), and has 20 producing wells. Hydraulic communication and the drainage areas for each reservoir, in both E and M sandstones, were evaluated by using a combination of the amplitude in the seismic anomalies and production data analysis. A good agreement between the seismic amplitude and dynamic characterization of the pressure and production data was obtained, which improved the evaluation of the reservoir quality and the estimation of drainage area, original gas in place, and proved reserves. In E and M sandstones, four and three independent reservoirs have been detected, respectively. The E sandstone has an estimated value of 62 Bscf of original gas in place and the M sandstone has an estimated value of 110 Bscf of original gas in place. By using the reservoir dynamic model in combination with information of logs, cores, and production data, the economic optimum strategy for the field development was designed, that included the drilling of wells in areas with the best seismic amplitude. © Canadian International Petroleum Conference 2004, CIPC 2004.All Rights Reserved.


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