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Title: Reservoir modeling in the Bunyu Tapa Gas Field - an integrated case study

Abstract

Bunya Tapa gas field is located on the western edge of Bunyu Island, approximately 12 km northwest of Bunyu Nibung oil field; it is the main gas producer for the Bunyu methanol plant. Initially, the Bunyu Tapa sands were believed to be deposited as a blanket-type sheet sand, but after drilling 21 wells in this field, it is obvious that these sands lack lateral continuity. The Bunyu Tapa reservoir sands were deposited in a deltaic environment. Several wells, which were producing gas close to the structurally high western edge of this field, are exhibiting a high-water cut. This water production is not expected in a deltaic lens environment, especially since these wells are updip to other gas-producing wells. This Bunyu Tapa reservoir modeling study is an integrated investigation of 2-D seismic data, electric logs, dipmeter, petrophysical analysis, and production history data. The results of this integrated study show that the sands were deposited as distributary channel sands across the field and extend offshore. Structurally, the wells on the western edge are in fact on the eastern flank of a north-south-trending anticline, close to the gas/water contact and are separated from the eastern wells by north-south-trending normal faults. In the nearmore » future, as a result of this study, a deviated well is planned to evaluate the offshore area to the west.« less

Authors:
 [1]; ;  [2]
  1. Pertamina Unit IV, Balikpapan (Indonesia)
  2. Schlumberger, Balikpapan (Indonesia)
Publication Date:
OSTI Identifier:
7015792
Report Number(s):
CONF-940803-
Journal ID: ISSN 0149-1423; CODEN: AABUD2
Resource Type:
Conference
Journal Name:
AAPG Bulletin (American Association of Petroleum Geologists); (United States)
Additional Journal Information:
Journal Volume: 78:7; Conference: American Association of Petroleum Geologists (AAPG) international conference and exhibition, Kuala Lumpur (Malaysia), 21-24 Aug 1994; Journal ID: ISSN 0149-1423
Country of Publication:
United States
Language:
English
Subject:
03 NATURAL GAS; INDONESIA; NATURAL GAS DEPOSITS; GEOLOGIC MODELS; DIPMETER LOGGING; RESERVOIR ROCK; SANDSTONES; SEISMIC SURVEYS; ASIA; DEVELOPING COUNTRIES; GEOLOGIC DEPOSITS; GEOPHYSICAL SURVEYS; ISLANDS; MINERAL RESOURCES; RESOURCES; ROCKS; SEDIMENTARY ROCKS; SURVEYS; WELL LOGGING; 030200* - Natural Gas- Reserves, Geology, & Exploration

Citation Formats

Nugroho, S, Hansen, S, and Susanto, M. Reservoir modeling in the Bunyu Tapa Gas Field - an integrated case study. United States: N. p., 1994. Web.
Nugroho, S, Hansen, S, & Susanto, M. Reservoir modeling in the Bunyu Tapa Gas Field - an integrated case study. United States.
Nugroho, S, Hansen, S, and Susanto, M. 1994. "Reservoir modeling in the Bunyu Tapa Gas Field - an integrated case study". United States.
@article{osti_7015792,
title = {Reservoir modeling in the Bunyu Tapa Gas Field - an integrated case study},
author = {Nugroho, S and Hansen, S and Susanto, M},
abstractNote = {Bunya Tapa gas field is located on the western edge of Bunyu Island, approximately 12 km northwest of Bunyu Nibung oil field; it is the main gas producer for the Bunyu methanol plant. Initially, the Bunyu Tapa sands were believed to be deposited as a blanket-type sheet sand, but after drilling 21 wells in this field, it is obvious that these sands lack lateral continuity. The Bunyu Tapa reservoir sands were deposited in a deltaic environment. Several wells, which were producing gas close to the structurally high western edge of this field, are exhibiting a high-water cut. This water production is not expected in a deltaic lens environment, especially since these wells are updip to other gas-producing wells. This Bunyu Tapa reservoir modeling study is an integrated investigation of 2-D seismic data, electric logs, dipmeter, petrophysical analysis, and production history data. The results of this integrated study show that the sands were deposited as distributary channel sands across the field and extend offshore. Structurally, the wells on the western edge are in fact on the eastern flank of a north-south-trending anticline, close to the gas/water contact and are separated from the eastern wells by north-south-trending normal faults. In the near future, as a result of this study, a deviated well is planned to evaluate the offshore area to the west.},
doi = {},
url = {https://www.osti.gov/biblio/7015792}, journal = {AAPG Bulletin (American Association of Petroleum Geologists); (United States)},
issn = {0149-1423},
number = ,
volume = 78:7,
place = {United States},
year = {Fri Jul 01 00:00:00 EDT 1994},
month = {Fri Jul 01 00:00:00 EDT 1994}
}

Conference:
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