The Experts below are selected from a list of 327 Experts worldwide ranked by ideXlab platform
Nilskare Birkeland - One of the best experts on this subject based on the ideXlab platform.
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thermovirga lienii gen nov sp nov a novel moderately thermophilic anaerobic amino acid degrading bacterium isolated from a north sea Oil Well
International Journal of Systematic and Evolutionary Microbiology, 2006Co-Authors: Hakon Dahle, Nilskare BirkelandAbstract:A novel anaerobic, moderately thermophilic bacterium, strain Cas60314T, was isolated from hot Oil-Well Production water obtained from an Oil reservoir in the North Sea. The cells were Gram-negative, motile, straight rods. The salinity and pH growth optima were 2.0–3.0 % NaCl and 6.5–7.0, respectively. The optimum temperature was 58 °C. Strain Cas60314T had a fermentative type of metabolism and utilized proteinous substrates, some single amino acids and a limited number of organic acids, but not sugars, fatty acids or alcohols. Cystine and elemental sulfur were reduced to sulfide. The G+C content of the DNA was 46.6 mol%. On the basis of phenotypic and phylogenetic features, it is proposed that this isolate represents a novel genus and species with the name Thermovirga lienii gen. nov., sp. nov. within the family Syntrophomonadaceae. The proposed type strain is strain Cas60314T (=DSM 17291T=ATTC BAA-1197T).
Hakon Dahle - One of the best experts on this subject based on the ideXlab platform.
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thermovirga lienii gen nov sp nov a novel moderately thermophilic anaerobic amino acid degrading bacterium isolated from a north sea Oil Well
International Journal of Systematic and Evolutionary Microbiology, 2006Co-Authors: Hakon Dahle, Nilskare BirkelandAbstract:A novel anaerobic, moderately thermophilic bacterium, strain Cas60314T, was isolated from hot Oil-Well Production water obtained from an Oil reservoir in the North Sea. The cells were Gram-negative, motile, straight rods. The salinity and pH growth optima were 2.0–3.0 % NaCl and 6.5–7.0, respectively. The optimum temperature was 58 °C. Strain Cas60314T had a fermentative type of metabolism and utilized proteinous substrates, some single amino acids and a limited number of organic acids, but not sugars, fatty acids or alcohols. Cystine and elemental sulfur were reduced to sulfide. The G+C content of the DNA was 46.6 mol%. On the basis of phenotypic and phylogenetic features, it is proposed that this isolate represents a novel genus and species with the name Thermovirga lienii gen. nov., sp. nov. within the family Syntrophomonadaceae. The proposed type strain is strain Cas60314T (=DSM 17291T=ATTC BAA-1197T).
Sudad H Al-obaidi - One of the best experts on this subject based on the ideXlab platform.
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Submersible Screw Pumps In Oil Industry
2020Co-Authors: Sudad H Al-obaidiAbstract:The process of extracting Oil and gas resources, processing them and delivering them to the final target represents a vital process in Oil industry. It depends on many factors among which a set of pumps and associated equipment. In this study, an analysis of Oil Well Production extracted from the earth's interior to the surface is performed. Oil pumps used for lifting Oil products from Wells are investigated. The advantages of an Oil two-rotor submersible pump over centrifugal and sucker rod pumps are noted.
Zhao Chun - One of the best experts on this subject based on the ideXlab platform.
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Research of sand Production mechamsm in P Oil field
Petrochemical Industry Application, 2006Co-Authors: Zhao ChunAbstract:Sand Production has been recorded in some of the DST tests and Production tests of P Oil field. To mitigate the negative impact of sand Production, a series of research work has been conducted to guarantee the smooth implementation of the FDP. A discriminance method for sand Production judgment has been built up on the mechanism study of sand Production and the reservoir geologic characteristics; and analog calculation has been done on critical producing pressures drawdown and the critical Production rate. These results not only provide a theoretical guideline for sand control Production, but also propound a decision - making system for sand control technique taking time in Oil Well Production. It has the approved instruction function to the site and can provide good reference for the Oil fields Production with the same characteristics.
Xiao Li-y - One of the best experts on this subject based on the ideXlab platform.
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Research on new-type double screw pumps and its application
Oil Drilling & Production Technology, 2007Co-Authors: Xiao Li-yAbstract:This paper introduces the Oil Production mechanism of the new-type hydraulic drive double-screw pumps,and the optimum design method for the double-screw pump lift system with hydraulic drive.The optimization design principle is established.According to the principle,the node analysis method and optimization technique are employed to study the Oil-Well Production system based on the Oil Well Production,inherent properties of pump systems,and the coordination of the whole assembly.When pumps operate with the highest efficiency,the energy lost of the whole assembly gets the lowest,that is,the pressure value of Wellhead power fluid under prescribed output of a Well taken as the design target is the minimum.In accordance with the basic theory and working characteristics of single-screw hydraulic machinery,a calculation formula is figured out by taking the specific conditions of Oil Wells of Liaohe offshore Oilfield into account.It is of universal significance for the design of such single-screw pumps,providing technical support for the systematic design of such hydraulic drive double-screw pumps.What's more,it discusses the key techniques and solutions to the development of model pumps.
