CSAMT surveys in a heavy oil field to monitor steam‐drive enhanced oil recovery process

1992 ◽  
Author(s):  
R. P. Ranganayaki ◽  
S. M. Fryer ◽  
L. C. Bartel
Keyword(s):  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Heavy Oil ◽  
Recovery Process ◽  
Oil Field ◽  
Steam Drive

Research on Efficient Microbial Enhanced Oil Recovery Technology Based on Low-Temperature Heavy Oil

2013 ◽  
Vol 734-737 ◽  
pp. 1434-1439 ◽  
Author(s):  
Gang Wu ◽  
Fu Ping Ren ◽  
Jing You ◽  
Ji Liang Yu ◽  
Ya Tuo Pei ◽  
...  
Keyword(s):  
Low Temperature ◽  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Heavy Oil ◽  
Average Concentration ◽  
Oil Field ◽  
Oil Reservoir ◽  
Oil Degradation ◽  
Microbial Enhanced Oil Recovery ◽  
Well Pattern

Based on the low-temperature and heavy oil reservoir of conventional injection well pattern separated two strains of oil degradation bacteria LC and JH which had satisfactory compatibleness with BaoLige oill field. In order to study the feasibility of enhancing oil recovery rate of the two strains, the experiment of huff and puff with 15 wells were carried out. The average concentration of bacteria increase from 4.7×102cells/ml to 8.1×106cells/ml. The average reduction of surface tension and viscosity is 33.1% and 31.9%. The accumulative total was 1163.2t. The ratio of input to output was 1:2.12. Microbial enhanced oil recovery can improve the low-temperature and heavy oil production status, which provide a effective method for the similar oil field.

Formation resistivity variation due to steam flooding: A log study

Geophysics ◽  
1992 ◽  
Vol 57 (3) ◽  
pp. 488-494 ◽  
Author(s):  
R. P. Ranganayaki ◽  
S. E. Akturk ◽  
S. M. Fryer
Keyword(s):  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Recovery Process ◽  
Oil Field ◽  
Steam Flooding ◽  
Resistivity Logs ◽  
Resistivity Variation ◽  
Steam Flood ◽  
Formation Resistivity ◽  
Production Pattern

An investigation of the pre‐ and poststeam resistivity logs, in a production pattern in a heavy‐oil field in Southern California, shows that the formation resistivity in steamed formations decreases by a factor of two to three. Shales as well as sands are affected by the steam flood. The observed drop in the resistivity of the reservoir correlates well with the increase in temperature. The study shows the potential of using resistivity variations to map and monitor thermal enhanced oil recovery process.

EOR Consideration in Marginal Field Operations

2021 ◽  
Author(s):  
Chukwunonso Uche ◽  
Samuel Esieboma ◽  
Jennifer Uche ◽  
Ibrahim Bukar
Keyword(s):  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Heavy Oil ◽  
Oil And Gas ◽  
Oil And Gas Industry ◽  
Economic Effects ◽  
Oil Field ◽  
Recovery Method ◽  
Recovery Technique ◽  
Marginal Field

Abstract "Marginal field" was introduced to the oil and gas industry to identify those fields that have negative economic effects in its development. More specifically it is possible to define a marginal field as a field that is cost ineffective to develop with conventional oil and gas means of technology. Economic development of marginal fields in most cases requires the use of existing processes to minimize cost of finding evolving technologies in development of reserves. This paper generally evaluates the feasibility of using the enhanced oil recovery technique to improve reserves in a marginal field operating environment. A marginal heavy oil field in the offshore environment of the Niger Delta region which started production in 2011 is used as a case study to evaluate the feasibility of the use of enhanced oil recovery method to improve recovery. Due to poor mobility ratio in this heavy oil field and its associated big aquifer sizes, pockets of unrecovered oil have been left behind the water fronts and water cut has risen above 80% in most of the producing wells. Recent integrated field evaluation shows that the recovery factor is poor compared to the size of oil originally in place and this triggered the need to process subsurface assessments of developing such reserves that exist in any marginal field using enhanced oil recovery technique. This paper therefore goes through the fundamental scope of an enhanced oil recovery study process to determine the applicability of this technology in a marginal oil field.

Remote monitoring of the steam‐flood enhanced oil recovery process

Geophysics ◽  
1987 ◽  
Vol 52 (11) ◽  
pp. 1457-1465 ◽  
Author(s):  
E. F. Laine
Keyword(s):  
Oil Recovery ◽  
Heavy Oil ◽  
High Frequency ◽  
Oil Sands ◽  
Seismic Velocity ◽  
Color Image ◽  
Vertical Plane ◽  
Recovery Process ◽  
Steam Flood ◽  
Borehole Seismic

Cross‐borehole seismic velocity and high‐frequency electromagnetic (EM) attenuation data were obtained to construct tomographic images of heavy oil sands in a steam‐flood environment. First‐arrival seismic data were used to construct a tomographic color image of a 10 m by 8 m vertical plane between the two boreholes. Two high‐frequency (17 and 15 MHz) EM transmission tomographs were constructed of a 20 m by 8 m vertical plane. The velocity tomograph clearly shows a shale layer with oil sands above it and below it. The EM tomographs show a more complex geology of oil sands with shale inclusions. The deepest EM tomograph shows the upper part of an active steam zone and suggests steam chanelling just below the shale layer. These results show the detailed structure of the entire plane between boreholes and may provide a better means to understand the process for in situ heavy oil recovery in a steam‐flood environment.

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