Method of assisting the recovery of petroleum in vertically fractured formations utilizing carbon dioxide gas to establish gravity drainage
Abstract
The invention relates to assisting the recovery of petroleum from vertically fractured formations utilizing carbon dioxide gas to lower the interfacial tension between the gas and the petroleum in the vertical fractures and in the formation matrix adjacent the vertical fractures to cause vertical drainage of the petroleum down the fracture system. The invention also includes a method for identifying vertically fractured formations which may be particularly susceptible to such recovery with carbon dioxide gas using the capillary to gravity ratio (1/N.sub.B) to select formations having a value for such ratio of 0.2 or less.
- Inventors:
- Issue Date:
- Research Org.:
- Stanford Univ., CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1531821
- Patent Number(s):
- 5314017
- Application Number:
- 07/957,043
- Assignee:
- Board of Trustees of the Leland Stanford Junior University (Stanford, CA)
- Patent Classifications (CPCs):
-
E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING
- DOE Contract Number:
- FG21-89MC26253
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 1992-10-05
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Schechter, David S., Zhou, Dengen, and Orr, Jr., Franklin M. Method of assisting the recovery of petroleum in vertically fractured formations utilizing carbon dioxide gas to establish gravity drainage. United States: N. p., 1994.
Web.
Schechter, David S., Zhou, Dengen, & Orr, Jr., Franklin M. Method of assisting the recovery of petroleum in vertically fractured formations utilizing carbon dioxide gas to establish gravity drainage. United States.
Schechter, David S., Zhou, Dengen, and Orr, Jr., Franklin M. Tue .
"Method of assisting the recovery of petroleum in vertically fractured formations utilizing carbon dioxide gas to establish gravity drainage". United States. https://www.osti.gov/servlets/purl/1531821.
@article{osti_1531821,
title = {Method of assisting the recovery of petroleum in vertically fractured formations utilizing carbon dioxide gas to establish gravity drainage},
author = {Schechter, David S. and Zhou, Dengen and Orr, Jr., Franklin M.},
abstractNote = {The invention relates to assisting the recovery of petroleum from vertically fractured formations utilizing carbon dioxide gas to lower the interfacial tension between the gas and the petroleum in the vertical fractures and in the formation matrix adjacent the vertical fractures to cause vertical drainage of the petroleum down the fracture system. The invention also includes a method for identifying vertically fractured formations which may be particularly susceptible to such recovery with carbon dioxide gas using the capillary to gravity ratio (1/N.sub.B) to select formations having a value for such ratio of 0.2 or less.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {5}
}
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Works referenced in this record:
Capillary Imbibition and Gravity Segregation in Low IFT Systems
conference, April 2013
- Schechter, D. S.; Denqen, Zhou; Orr, F. M.
- SPE Annual Technical Conference and Exhibition