TRANSPORTING MOBILITY CONTROL AGENTS TO HIGH PERMEABILITY THIEF ZONES

Award Information
Agency:
Department of Energy
Branch
n/a
Amount:
$75,000.00
Award Year:
1993
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Award Id:
21011
Agency Tracking Number:
21011
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
6849 E 13th St, Tulsa, OK, 74112
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Dr Dwight L Dauben
(918) 835-9524
Business Contact:
() -
Research Institute:
n/a
Abstract
THIS RESEARCH PROJECT WILL DIRECTLY ADDRESS THE PROBLEM OF SWEEP IMPROVEMENT FOR ENHANCED OIL RECOVERY (EOR) PROCESSES. ONE OF THE MAJOR PROBLEMS IN CONDUCTING AN EFFICIENT EOR PROCESS IS THE CONTROL OF THE INJECTED FLUIDS. IN MOST FIELD APPLICATIONS OF MISCIBLE OR IMMISCIBLE SOLVENT DRIVES, SUCH AS CARBON DIOXIDE OR LIGHT HYDROCARBON FLOODS, THE PRESENCE OF RESERVOIR HETEROGENEITIES LEADS TO EARLY SOLVENT BREAKTHROUGH. BY OFFERING A PATH OF LEAST RESISTANCE, THE HIGH PERMEABILITY STREAKS OR THIEF ZONES TAKE THE BULK OF THE INJECTED SOLVENT, AND, AS A CONSEQUENCE, LARGE VOLUMES OF THE RESERVOIR OIL ARE LEFT UNSWEPT. REDIRECTING THE INJECTED SOLVENT SO THAT PREVIOUSLY UNSWEPT VOLUMES OF THE RESERVOIR CAN BE ACCESSED ALLOWS FOR ADDITIONAL OIL RECOVERY. THIS REQUIRES IN-DEPTH PLUGGING OF THESE HIGH PERMEABILITY STREAKS. THE EFFICACY OF THE DIVERTING PROCESS WOULD BE FURTHER INCREASED IF THE PLUGGING MECHANISM WAS IMPLEMENTED VIA THE INJECTED SOLVENT, AS THIS WOULD DELIVER THE PLUGGING AGENTS DIRECTLY TO THETHIEF ZONE TAKING THE SOLVENT. THE PHASE I INVESTIGATION ADDRESSES THAT ISSUE BY STUDYING A SIMPLE SCHEME WHEREBY A PLUGGING AGENT SOLUBLE IN THE INJECTED SOLVENT IS ADDED AT THE WELLHEAD. THE PLUGGING AGENT WILL COME OUT OF SOLUTION AFTER THE SOLVENT HAS PENETRATED SOME DISTANCE INTO THE RESERVOIR, AND THUS PLUG THE THIEF ZONE TAKING THE BULK OF THE SOLVENT.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government