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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

Journal Article · · Energy Procedia (Online)
 [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
+ Show Author Affiliations

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.

Research Organization:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC05-76RL01830; FC26-05NT42591
OSTI ID:
1406776
Report Number(s):
PNNL-SA-121318; AA7040000
Journal Information:
Energy Procedia (Online), Vol. 114, Issue C; ISSN 1876-6102
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 7 works
Citation information provided by
Web of Science

References (11)

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Analysis of Upscaling Algorithms in Heterogeneous Reservoirs with Different Recovery Processes conference March 2015
An Integrated Approach for Characterizing a Sandstone Reservoir in the Anadarko Basin conference May 2016
An Improved Approach for Sandstone Reservoir Characterization conference May 2016
Analysis Of Pore Throat Size And Use Of The Waxman-Smits Equation To Determine Ooip In Spindle Field, Colorado conference September 1980
Design of a perfluorocarbon tracer based monitoring network to support monitoring verification and accounting of sequestered CO 2 journal January 2013
Detection of Naphthalene Sulfonates from Highly Saline Brines with High-Performance Liquid Chromatography in Conjunction with Fluorescence Detection and Solid-Phase Extraction journal April 2012
Development of perfluorocarbon tracer technology for underground leak location journal January 2000
A New Two-Constant Equation of State journal February 1976
Reservoir Fluid Characterization for Miscible Enhanced Oil Recovery conference November 2015
Farnsworth Field CO2-EOR Project: Performance Case History conference April 2016

Cited By (2)

Transport of perfluorocarbon tracers in the Cranfield Geological Carbon Sequestration Project: Modeling and Analysis: Transport of perfluorocarbon tracers in the Cranfield Geological Carbon Sequestration Project journal June 2018
Role of Well Operations and Multiphase Geomechanics in Controlling Fault Stability During CO 2 Storage and Enhanced Oil Recovery journal July 2019

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32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
54 ENVIRONMENTAL SCIENCES
enhanced oil recovery
tracer experiments
numerical simulation
faulted reservoir
Farnsworth Unit