Navigation Links
Bacteria keep tabs on state of oil field
Date:10/7/2010

The ups and downs of the bacteria in an oil field provide a useful source of information for keeping tabs on the state of the oil field itself. In theory, this process known as 'biomonitoring' can increase the yield from an oil field. This is the conclusion reached by Geert van der Kraan, who obtained his doctorate on this topic at TU Delft on Tuesday, 5 October.

Seawater

Oil fields are highly specific ecosystems. For instance, they contain no oxygen and the temperature, pressure and salinity are often high. This means that oil fields are home to a very particular community of bacteria. The exploitation of oil fields gives rise to a great many changes. In order to obtain more oil from a field, methods such as pumping seawater into the field are used in order to flush through the oil. Seawater injection has a number of effects, such as the introduction of sulphate. This changes the composition of the bacteria populations in the oil field. Bacteria that reduce sulphate thrive, prompting the release of hydrogen sulphide, which is not only toxic but also has an adverse effect on the quality of the oil and damages the pipelines.

Information source

For this reason, these bacteria have always been closely monitored by the oil industry. For his doctorate research, Geert van der Kraan investigated whether a brand new step could be taken. He wanted to know whether the microbial changes (i.e. the types and quantity of bacteria present) could be used as an information source to track what is taking place in the oil field. This concept is known as biomonitoring. It is an approach that has the potential to boost oil exploitation or to prevent the production of harmful hydrogen sulphide at an early stage. This can be achieved by smart management of oil wells.

Positive indications

Geert van der Kraan has studied various Dutch oil fields, focusing on the microbial communities living there. "There are very positive indications that biomonitoring is a realistic option. The changes in the microbial diversity of the pore water from the oil well can provide a good understanding of the changing geochemical conditions in the oil field itself. This may well enable the oil field to be exploited more efficiently."

Biofilms

In addition to monitoring, bacteria can also be used to improve oil extraction. Geert van der Kraan explains: "Encouraging the growth of certain groups of bacteria at specific locations in the oil field is an interesting proposition. This growth partially blocks the porous structure of the rock that contains the oil, forcing the water to take another route. It can then move oil that is more difficult to reach, increasing the effectiveness of oil extraction."

Geert van der Kraan is the first researcher to obtain his doctorate as part of the ISAPP programme (Integrated System Approach Petroleum Production). ISAPP is a collaboration between TU Delft, Shell International Exploration & Production and TNO.


'/>"/>

Contact: Roy Meijer
r.e.t.meijer@tudelft.nl
31-152-781-751
Delft University of Technology
Source:Eurekalert

Related biology news :

1. FSU researchers examine how bacteria become resistant to antibiotics
2. Scientists reveal important clues to how bacteria and viruses are identified as enemies
3. Iowa State, Ames Lab researchers identify structure that allows bacteria to resist drugs
4. Pickle spoilage bacteria may help environment
5. Rice study examines how bacteria acquire immunity
6. New microfluidic chip for discriminating bacteria
7. Insulin may reduce several inflammatory factors induced by bacterial infection
8. Jailbreak bacteria can trigger heart disease
9. Backstabbing bacteria: A new treatment for infection?
10. Talented bacteria make food poisoning unpredictable
11. Imaging reveals key metabolic factors of cannibalistic bacteria
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/3/2016)... --> --> ... Fingerprint Identification System Market by Component (Hardware and Software), ... Finance, Government, Healthcare, and Transportation) and Geography - Global ... expected to be worth USD 8.49 Billion by 2020 ... 2020. The transformation and technology evolution from the manual ...
(Date:2/2/2016)... , Feb. 2, 2016 This ... the bioinformatic market by reviewing the recent advances ... tools that drive the field forward. Includes forecast ... Identify the challenges and opportunities that exist ... and software solution developers, as well as IT ...
(Date:2/2/2016)... 2, 2016  Based on its recent analysis ... recognizes US-based Intelligent Retinal Imaging Systems (IRIS) with ... for New Product Innovation. IRIS, a prominent cloud-based ... America , is poised to set the ... retinopathy market. The IRIS technology presents superior price-performance ...
Breaking Biology News(10 mins):
(Date:2/3/2016)... ... February 03, 2016 , ... Aerocom, a world-leading supplier ... the North American healthcare market. , Aerocom Healthcare, LLC will be based in ... will provide new pneumatic tube systems or expand existing systems within the U.S. ...
(Date:2/3/2016)... ... February 03, 2016 , ... Resilinc released online ... analyzes nearly 750 unique supply chain notifications and alerts generated by its ... chain risk management practitioners subscribe to the EventWatch service to receive early warnings ...
(Date:2/3/2016)... (PRWEB) , ... February 03, 2016 , ... ... products to aid in the rapid development and ongoing quality control of molecular ... Virus outbreak is extremely high,” Dr. Gregory R. Chiklis, President and CEO of ...
(Date:2/3/2016)... ... 03, 2016 , ... Big games come and go, but only one will ... country. CereScan, a nationally recognized brain diagnostics and technology company, will join NFL alumni ... vs. NFL Stars Flag Football Game on February 6, 2016. , The event, ...
Breaking Biology Technology: