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THE COST OF DRILLING A GEOTHERMAL WELL IS SIGNIFICANTLY HIGHER THAN THE COST OF…

Award Information

Agency:
Department of Energy
Branch:
N/A
Award ID:
1239
Program Year/Program:
1984 / SBIR
Agency Tracking Number:
1239
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Terra Tek Inc.
420 Wakara Way Salt Lake City, UT 84108
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1984
Title: THE COST OF DRILLING A GEOTHERMAL WELL IS SIGNIFICANTLY HIGHER THAN THE COST OF DRILLING AN OIL AND GAS WELL AT COMPARABLE DEPTHS.
Agency: DOE
Contract: N/A
Award Amount: $49,078.00
 

Abstract:

THE COST OF DRILLING A GEOTHERMAL WELL IS SIGNIFICANTLY HIGHER THAN THE COST OF DRILLING AN OIL AND GAS WELL AT COMPARABLE DEPTHS. THE HIGHER COST IS DUE PRINCIPALLY TO TWOFACTORS: THE HARDNESS OF THE ROCK FORMATIONS BEING DRILLED AND THE HIGH TEMPERATURES ENCOUNTERED IN DRILLING. THESE TWO FACTORS REDUCE THE RATES OF PENETRATION, THEREBY IN- CREASING THE DRILLING COST. A KEY LIMITATION TO UNDERSTAND ING THE REDUCED RATES OF PENETRATION FOR DRILLING GEOTHERMALWELLS IS THE LACK OF AN UNDERSTANDING OF PENETRATION MECHANICS IN GEOTHERMAL ROCKS UNDER DOWNHOLE CONDITIONS. T THIS PROGRAM WILL DRILL REPRESENTATIVE GEOTHERMAL ROCK SAMPLE UNDER SIMULATED DOWNHOLE CONDITIONS WITH FULL-SCALE DRILL BITS AND MEASURE THE PARAMETERS ASSOCIATED WITH DRILLING. SEVERAL ROCK CHARACTERIZATION TESTS SUCH AS MECHANICAL PROPERTIES, POROSITY, GRAIN DENSITY, GRAIN SIZE DISTRIBUTION, PERMEABILITY AND X-RAY DIFFRACTTION, WILL BE PERFORMED ON THE REPRESENTATIVE ROCK SAMPLES. THE DRILLING PERFORMANCE WILL THEN BE CORRELATED WITH THE ROCK PROPERTIESTHROUGH A MATHEMATICAL MODEL. THE GOALS OF THIS PROGRAM AREFOUR-FOLD: 1. ESTABLISH A MATRIX OF ROCK DRILLABILITY FOR AT LEAST FIVE DIFFERENT METHODS OF ROCK PENETRATION I INCLUDING: CRUSHING, SPALLING, SHEARING, EROSION AND SHOCK LOADING. 2. ESTABLISH A DATA BASE OF ROCK CHARACTERIZATION STUDIES FOR GEOTHERMAL ROCKS. 3. DETERMINE THE TEMPERATURE EFFECTS ON THE ROCK PROPERTIES.4. USING THE DATA BASE ON ROCK CHARACTERIZATION AND ROCK DRILLABILITY, DEVELOP A MATHEMATICAL MODEL TO PREDICT PERFORMANCE OF ROCK PENETRATION DEVICES. 2

Principal Investigator:

David s. rowley
VICE PRESIDENT

Business Contact:

Small Business Information at Submission:

Terra Tek, Inc.
400 Wakara Way Salt Lake City, UT 84108

EIN/Tax ID:
DUNS: N/A
Number of Employees: N/A
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No