Title:
A PROCESS FOR ENHANCED RECOVERY OF CRUDE OIL FROM OIL WELLS USING NOVEL MICROBIAL CONSORTIUM
Document Type and Number:
WIPO Patent Application WO2005005773
Kind Code:
A3
Abstract:
The present invention provides a microbial consortium containing three hyperthermophilic, barophilic, acidogenic, anaerobic bacterial strains for enhanced oil recovery from oil reservoirs where temperatures range from 70 °C to 90 °C. The said microbial consortium is unique in producing a variety of metabolic products mainly CO2, methane, biosurfactant, volatile fatty acids and alcohols in the presence of specially designed nutrient medium. These metabolic products increase sweep efficiency of crude oil from oil bearing poles of rock formation. The present invention also provides a process for enhancing the oil recovery by in situ application of the said microbial consortium
Inventors:
LAL BANWARI (IN)
REDDY MULA RAMAJANEYA VARAPRAS (IN)
AGNIHOTRI ANIL (IN)
KUMAR ASHOK (IN)
SARBHAI MUNISH PRASAD (IN)
SINGH NIMMI (IN)
KHURANA RAJ KARAN (IN)
KHAZANCHI SHINBEN KISHEN (IN)
MISRA TILAK RAM (IN)
REDDY MULA RAMAJANEYA VARAPRAS (IN)
AGNIHOTRI ANIL (IN)
KUMAR ASHOK (IN)
SARBHAI MUNISH PRASAD (IN)
SINGH NIMMI (IN)
KHURANA RAJ KARAN (IN)
KHAZANCHI SHINBEN KISHEN (IN)
MISRA TILAK RAM (IN)
Application Number:
PCT/IN2004/000206
Publication Date:
March 24, 2005
Filing Date:
July 14, 2004
Export Citation:
Assignee:
ENERGY RES INST (IN)
INSTITUE OF RESERVOIR STUDIES (IN)
LAL BANWARI (IN)
REDDY MULA RAMAJANEYA VARAPRAS (IN)
AGNIHOTRI ANIL (IN)
KUMAR ASHOK (IN)
SARBHAI MUNISH PRASAD (IN)
SINGH NIMMI (IN)
KHURANA RAJ KARAN (IN)
KHAZANCHI SHINBEN KISHEN (IN)
MISRA TILAK RAM (IN)
INSTITUE OF RESERVOIR STUDIES (IN)
LAL BANWARI (IN)
REDDY MULA RAMAJANEYA VARAPRAS (IN)
AGNIHOTRI ANIL (IN)
KUMAR ASHOK (IN)
SARBHAI MUNISH PRASAD (IN)
SINGH NIMMI (IN)
KHURANA RAJ KARAN (IN)
KHAZANCHI SHINBEN KISHEN (IN)
MISRA TILAK RAM (IN)
International Classes:
C09K8/582; C12N1/20; C12P39/00; C12R1/01; (IPC1-7): E21B43/16
Domestic Patent References:
| WO2002103157A1 | 2002-12-27 |
Foreign References:
| US4057510A | 1977-11-08 |
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