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Title: Computer Simulation of Single-Well Steam Assisted Gravity Drainage (SW-SAGD), SUPRI TR-119

Abstract

Steam assisted gravity drainage (SAGD) is an effective method of producing heavy oil and bitumen. In a typical SAGD approach, steam is injected into a horizontal well located directly above a horizontal producer. A steam chamber grows around the injection well and helps displace heated oil toward the production well. Single-well (SW) SAGD attempts to create a similar process using only one horizontal well. This may include steam injection from the toe of the horizontal well with production at the heel. Obvious advantages of SW-SAGD include cost savings and utility in relatively thin reservoirs. However, the process is technically challenging. To improve early-time response of SW-SAGD, it is necessary to heat the near-wellbore area to reduce oil viscosity and allow gravity drainage to take place. Ideally heating should occur with minimal circulation or bypassing of stream. Since project economics are sensitive to early production response, we are interested in optimizing the start -up procedure.

Authors:
;
Publication Date:
Research Org.:
National Petroleum Technology Office, Tulsa, OK (US)
Sponsoring Org.:
USDOE Office of Fossil Energy (FE) (US)
OSTI Identifier:
9333
Report Number(s):
DOE/BC/14994-18
TRN: AH200122%%277
DOE Contract Number:  
FG22-96BC14994
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 9 Aug 1999
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; COMPUTERS; DRAINAGE; HEATING; INJECTION WELLS; PETROLEUM; PRODUCTION; SIMULATION; STEAM; STEAM INJECTION; VISCOSITY

Citation Formats

Elliott, Keith T., and Kovscek, Anthony R. Computer Simulation of Single-Well Steam Assisted Gravity Drainage (SW-SAGD), SUPRI TR-119. United States: N. p., 1999. Web. doi:10.2172/9333.
Elliott, Keith T., & Kovscek, Anthony R. Computer Simulation of Single-Well Steam Assisted Gravity Drainage (SW-SAGD), SUPRI TR-119. United States. doi:10.2172/9333.
Elliott, Keith T., and Kovscek, Anthony R. Mon . "Computer Simulation of Single-Well Steam Assisted Gravity Drainage (SW-SAGD), SUPRI TR-119". United States. doi:10.2172/9333. https://www.osti.gov/servlets/purl/9333.
@article{osti_9333,
title = {Computer Simulation of Single-Well Steam Assisted Gravity Drainage (SW-SAGD), SUPRI TR-119},
author = {Elliott, Keith T. and Kovscek, Anthony R.},
abstractNote = {Steam assisted gravity drainage (SAGD) is an effective method of producing heavy oil and bitumen. In a typical SAGD approach, steam is injected into a horizontal well located directly above a horizontal producer. A steam chamber grows around the injection well and helps displace heated oil toward the production well. Single-well (SW) SAGD attempts to create a similar process using only one horizontal well. This may include steam injection from the toe of the horizontal well with production at the heel. Obvious advantages of SW-SAGD include cost savings and utility in relatively thin reservoirs. However, the process is technically challenging. To improve early-time response of SW-SAGD, it is necessary to heat the near-wellbore area to reduce oil viscosity and allow gravity drainage to take place. Ideally heating should occur with minimal circulation or bypassing of stream. Since project economics are sensitive to early production response, we are interested in optimizing the start -up procedure.},
doi = {10.2172/9333},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {8}
}

Technical Report:

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