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Title: Pavayacu Field, Peru - a case history for production improvement through reservoir characterization

Abstract

The Pavayacu field in the Mara[acute n]on basin of Peru is a mature oil field with a declining production rate. The field was under consideration for disposal when a 3-D seismic survey and reservoir characterization were conducted. These studies led to a refined understanding of the hydrocarbon distribution, which led to a 10 fold increase in daily production and additional recoverable reserves. The main reservoir in the Pavayacu field is within fluvial deltaic sands of the Vivian formation. The overall trapping mechanism is controlled by asymmetric anticlinal folding of the reservoir over basement faults. Hydrocarbon distribution and production is greatly influenced by smaller scale reservoir heterogeneities within a seemingly homogenous sand. Small scale reservoir heterogeneities were successfully resolved through an integrated reservoir characterization process where hydrocarbon pore volumes (HPV) were found to be related to seismic amplitudes derived from the 3-D seismic survey. Additional well locations were successfully selected not only based on the 3-D structural data but also on the HPV distribution. Six wells were drilled based on these analysis resulting in individual flow tests in excess of 4000 BOPD. The one well location based only on the 3-D seismic was not successful. As a result of this studymore » overall field production was increased by an order of magnitude and the field is no longer a candidate for disposal.« less

Authors:
; ;  [1];  [2]
  1. Western Atlas - E P Services, Houston, TX (United States)
  2. Petroperu, Lima (Peru)
Publication Date:
OSTI Identifier:
6574047
Report Number(s):
CONF-960527-
Journal ID: ISSN 0149-1423; CODEN: AABUD2
Resource Type:
Conference
Journal Name:
AAPG Bulletin
Additional Journal Information:
Journal Volume: 5; Conference: Annual convention of the American Association of Petroleum Geologists, Inc. and the Society for Sedimentary Geology: global exploration and geotechnology, San Diego, CA (United States), 19-22 May 1996; Journal ID: ISSN 0149-1423
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; PERU; OIL FIELDS; SEISMIC SURVEYS; PETROLEUM; PRODUCTION; RESOURCE POTENTIAL; DEVELOPING COUNTRIES; ENERGY SOURCES; FOSSIL FUELS; FUELS; GEOLOGIC DEPOSITS; GEOPHYSICAL SURVEYS; LATIN AMERICA; MINERAL RESOURCES; PETROLEUM DEPOSITS; RESOURCES; SOUTH AMERICA; 020200* - Petroleum- Reserves, Geology, & Exploration

Citation Formats

Murray, R, Ahmad, R, Gregovic, R, and Sanchez, W. Pavayacu Field, Peru - a case history for production improvement through reservoir characterization. United States: N. p., 1996. Web.
Murray, R, Ahmad, R, Gregovic, R, & Sanchez, W. Pavayacu Field, Peru - a case history for production improvement through reservoir characterization. United States.
Murray, R, Ahmad, R, Gregovic, R, and Sanchez, W. 1996. "Pavayacu Field, Peru - a case history for production improvement through reservoir characterization". United States.
@article{osti_6574047,
title = {Pavayacu Field, Peru - a case history for production improvement through reservoir characterization},
author = {Murray, R and Ahmad, R and Gregovic, R and Sanchez, W},
abstractNote = {The Pavayacu field in the Mara[acute n]on basin of Peru is a mature oil field with a declining production rate. The field was under consideration for disposal when a 3-D seismic survey and reservoir characterization were conducted. These studies led to a refined understanding of the hydrocarbon distribution, which led to a 10 fold increase in daily production and additional recoverable reserves. The main reservoir in the Pavayacu field is within fluvial deltaic sands of the Vivian formation. The overall trapping mechanism is controlled by asymmetric anticlinal folding of the reservoir over basement faults. Hydrocarbon distribution and production is greatly influenced by smaller scale reservoir heterogeneities within a seemingly homogenous sand. Small scale reservoir heterogeneities were successfully resolved through an integrated reservoir characterization process where hydrocarbon pore volumes (HPV) were found to be related to seismic amplitudes derived from the 3-D seismic survey. Additional well locations were successfully selected not only based on the 3-D structural data but also on the HPV distribution. Six wells were drilled based on these analysis resulting in individual flow tests in excess of 4000 BOPD. The one well location based only on the 3-D seismic was not successful. As a result of this study overall field production was increased by an order of magnitude and the field is no longer a candidate for disposal.},
doi = {},
url = {https://www.osti.gov/biblio/6574047}, journal = {AAPG Bulletin},
issn = {0149-1423},
number = ,
volume = 5,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 1996},
month = {Mon Jan 01 00:00:00 EST 1996}
}

Conference:
Other availability
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