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Title: Interpretation of Tracer Experiments on Inverted Five-spot Well-patterns within the Western Half of the Farnsworth Unit Oil Field

Abstract

The Southwest Carbon Partnership (SWP), one of the U.S. Department of Energy (U.S. DOE) seven Regional Carbon Sequestration Partnerships, is currently working to demonstrate the utilization and storage of CO 2 in the Farnsworth Unit (FWU) Enhanced Oil Recovery (EOR) site under the final development phase of this U.S. DOE initiative. A component of the research is to use fluid tracers to understand the multifluid flow patterns that develop between injection and production wells via collected field data and supporting numerical reservoir models. The FWU, located in the Anadarko Basin, Ochiltree County, Texas, and being operated by Chaparral Energy, is a mature EOR water-flood field, which is currently being converted to a CO 2 flow, with inverted 5-spot patterns transitioning from pure water to alternating CO 2 and water floods (i.e., water alternating gas (WAG)) at an approximate rate of one every 6 to 10 months. The SWP tracer program is conducting a suite of tracer injections into the active 5-spot patterns at the FWU. Tracers have been selected to be nonreactive and either principally soluble in CO 2 (gas soluble) or water (aqueous soluble). In addition to characterizing the multifluid flow behaviour within reservoir, the gas and aqueous tracersmore » have roles in detecting any leakage from the reservoir. A total of seven unique perfluorocarbon tracer (PFT) compounds make up the suite of gas soluble tracers and eight unique naphthalene sulfonate tracer (NPT) compounds comprise the aqueous soluble tracers. Lastly, all selected tracers are significantly detectable below the parts per billion concentrations, allowing for high resolution for the inter-well tests at relatively low injection volumes.« less

Authors:
 [1];  [2];  [2];  [3];  [3];  [2];  [3];  [3]
  1. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  2. Univ. of Utah, Salt Lake City, UT (United States). Energy & Geosciences Inst.
  3. New Mexico Tech, Socorro, NM (United States). Petroleum Recovery Research Center
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1406776
Report Number(s):
PNNL-SA-121318
Journal ID: ISSN 1876-6102; AA7040000
Grant/Contract Number:  
AC05-76RL01830; FC26-05NT42591
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Energy Procedia
Additional Journal Information:
Journal Volume: 114; Journal Issue: C; Journal ID: ISSN 1876-6102
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 54 ENVIRONMENTAL SCIENCES; enhanced oil recovery; tracer experiments; numerical simulation; faulted reservoir; Farnsworth Unit

Citation Formats

White, Mark D., Esser, R. P., McPherson, B. P., Balch, R. S., Liu, N., Rose, P. E., Garcia, L., and Ampomah, W.. Interpretation of Tracer Experiments on Inverted Five-spot Well-patterns within the Western Half of the Farnsworth Unit Oil Field. United States: N. p., 2017. Web. doi:10.1016/j.egypro.2017.03.1849.
White, Mark D., Esser, R. P., McPherson, B. P., Balch, R. S., Liu, N., Rose, P. E., Garcia, L., & Ampomah, W.. Interpretation of Tracer Experiments on Inverted Five-spot Well-patterns within the Western Half of the Farnsworth Unit Oil Field. United States. doi:10.1016/j.egypro.2017.03.1849.
White, Mark D., Esser, R. P., McPherson, B. P., Balch, R. S., Liu, N., Rose, P. E., Garcia, L., and Ampomah, W.. Sat . "Interpretation of Tracer Experiments on Inverted Five-spot Well-patterns within the Western Half of the Farnsworth Unit Oil Field". United States. doi:10.1016/j.egypro.2017.03.1849. https://www.osti.gov/servlets/purl/1406776.
@article{osti_1406776,
title = {Interpretation of Tracer Experiments on Inverted Five-spot Well-patterns within the Western Half of the Farnsworth Unit Oil Field},
author = {White, Mark D. and Esser, R. P. and McPherson, B. P. and Balch, R. S. and Liu, N. and Rose, P. E. and Garcia, L. and Ampomah, W.},
abstractNote = {The Southwest Carbon Partnership (SWP), one of the U.S. Department of Energy (U.S. DOE) seven Regional Carbon Sequestration Partnerships, is currently working to demonstrate the utilization and storage of CO2 in the Farnsworth Unit (FWU) Enhanced Oil Recovery (EOR) site under the final development phase of this U.S. DOE initiative. A component of the research is to use fluid tracers to understand the multifluid flow patterns that develop between injection and production wells via collected field data and supporting numerical reservoir models. The FWU, located in the Anadarko Basin, Ochiltree County, Texas, and being operated by Chaparral Energy, is a mature EOR water-flood field, which is currently being converted to a CO2 flow, with inverted 5-spot patterns transitioning from pure water to alternating CO2 and water floods (i.e., water alternating gas (WAG)) at an approximate rate of one every 6 to 10 months. The SWP tracer program is conducting a suite of tracer injections into the active 5-spot patterns at the FWU. Tracers have been selected to be nonreactive and either principally soluble in CO2 (gas soluble) or water (aqueous soluble). In addition to characterizing the multifluid flow behaviour within reservoir, the gas and aqueous tracers have roles in detecting any leakage from the reservoir. A total of seven unique perfluorocarbon tracer (PFT) compounds make up the suite of gas soluble tracers and eight unique naphthalene sulfonate tracer (NPT) compounds comprise the aqueous soluble tracers. Lastly, all selected tracers are significantly detectable below the parts per billion concentrations, allowing for high resolution for the inter-well tests at relatively low injection volumes.},
doi = {10.1016/j.egypro.2017.03.1849},
journal = {Energy Procedia},
number = C,
volume = 114,
place = {United States},
year = {Sat Jul 01 00:00:00 EDT 2017},
month = {Sat Jul 01 00:00:00 EDT 2017}
}

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