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Title: 3-D seismic results in the discovery of significant reserves bypassed for 55 years in the Chocolate Bayou Field

Abstract

The Chocolate Bayou Field is located 25 miles south of Houston, in Southeast Brazoria County, Texas. Discovered in 1938, the field has produced over 2 trillion cubic feet of natural gas and 65 million barrels of oil from approximately 30 sands and 300 wellbores. The majority of the production is from the sands of the upper and middle Frio (Oligocene) section. Accumulation is found on structural highs on both the downthrown and upthrown side of a major basinward growth fault. A 3-D seismic survey was conducted over the field in 1988 in an effort to locate bypassed reserves. Interpretation of the data revealed and unexpected paleo structure associated with a buried and previously undetected counter-regional fault located almost 3 miles south of the structural crest at the Upper Frio level. Detailed structural and isochron mapping with adequate depth conversions indicated that the structure was prospective for trapping of the Lower Frio Sand which were well developed but wet under the Upper Frio structural crest. Although the feature was located on the absolute edge of the survey, the data were adequate to locate two wells which have now been completed in the Lower Frio (RA{sub 4}) section. The sands ranged inmore » thickness from 65 to 115 feet of net pay with porosities from 27 to 30% with sustained production rates in excess of 10,000 million cubic feet of gas and 140 barrels of oil per day per completion.« less

Authors:
; ;  [1]
  1. Texas Meridian Resources Corp., Houston, TX (United States)
Publication Date:
OSTI Identifier:
93119
Report Number(s):
CONF-941015-
TRN: IM9537%%162
Resource Type:
Conference
Resource Relation:
Conference: 64. annual meeting of the Society of Exploration Geophysicists and international exposition, Los Angeles, CA (United States), 23-27 Oct 1994; Other Information: PBD: 1994; Related Information: Is Part Of SEG international exposition and sixty-fourth annual meeting -- 1994 Technical program: Expanded abstracts with authors` biographies; PB: 1736 p.
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; 03 NATURAL GAS; SEISMIC SURVEYS; THREE-DIMENSIONAL CALCULATIONS; IMAGE PROCESSING; TEXAS; NATURAL GAS FIELDS; OIL FIELDS; GEOLOGIC STRUCTURES; PETROLEUM INDUSTRY

Citation Formats

Pennington, A, Plant, C, and Davis, C. 3-D seismic results in the discovery of significant reserves bypassed for 55 years in the Chocolate Bayou Field. United States: N. p., 1994. Web.
Pennington, A, Plant, C, & Davis, C. 3-D seismic results in the discovery of significant reserves bypassed for 55 years in the Chocolate Bayou Field. United States.
Pennington, A, Plant, C, and Davis, C. 1994. "3-D seismic results in the discovery of significant reserves bypassed for 55 years in the Chocolate Bayou Field". United States.
@article{osti_93119,
title = {3-D seismic results in the discovery of significant reserves bypassed for 55 years in the Chocolate Bayou Field},
author = {Pennington, A and Plant, C and Davis, C},
abstractNote = {The Chocolate Bayou Field is located 25 miles south of Houston, in Southeast Brazoria County, Texas. Discovered in 1938, the field has produced over 2 trillion cubic feet of natural gas and 65 million barrels of oil from approximately 30 sands and 300 wellbores. The majority of the production is from the sands of the upper and middle Frio (Oligocene) section. Accumulation is found on structural highs on both the downthrown and upthrown side of a major basinward growth fault. A 3-D seismic survey was conducted over the field in 1988 in an effort to locate bypassed reserves. Interpretation of the data revealed and unexpected paleo structure associated with a buried and previously undetected counter-regional fault located almost 3 miles south of the structural crest at the Upper Frio level. Detailed structural and isochron mapping with adequate depth conversions indicated that the structure was prospective for trapping of the Lower Frio Sand which were well developed but wet under the Upper Frio structural crest. Although the feature was located on the absolute edge of the survey, the data were adequate to locate two wells which have now been completed in the Lower Frio (RA{sub 4}) section. The sands ranged in thickness from 65 to 115 feet of net pay with porosities from 27 to 30% with sustained production rates in excess of 10,000 million cubic feet of gas and 140 barrels of oil per day per completion.},
doi = {},
url = {https://www.osti.gov/biblio/93119}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Dec 31 00:00:00 EST 1994},
month = {Sat Dec 31 00:00:00 EST 1994}
}

Conference:
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