Development of hydrocyclonic separation is introduced first. The characteristics of the dynamic hydrocyclone are described. The laboratory study and oilfield tests of dynamic hydrocyclones were carried out. Some photos indicating flow phenomena inside the hydrocyclone were taken and analyzed for understanding the effect of some varieties on hydrocyclonic separation. Relations of flowrate, and o...

Enterobacter mori strain 5-4 is a Gram-negative, motile, rod shaped, and facultatively anaerobic bacterium, which was isolated from a mixture of formation water (also known as oil-reservior water) and crude-oil in Karamay oilfield, China. To date, there is only one E. mori genome has been sequenced and very little knowledge about the mechanism of E. mori adapted to the petroleum reservoir. Here...

Based on the geological characteristics of shale oil in Kong 2 Member Cangdong Sag, Dagang Oilfield, and a large number core experiments numerical simulations, displacement single-stage liquid volume fracturing construction were simulated optimized; stratigraphic stratified mixed shale, reverse mixing mode is adopted, that is, gel used for rock-breaking seam, then low-concentration low-damage f...

Mahu conglomerate oilfield has strong heterogeneity. Currently, large-scale hydraulic fracturing is commonly used for reservoir reconstruction. The geometry of fractures influenced by gravel. By referring to the scanning and logging results a reservoir, considering characteristics gravel development in Oilfield python programming establish finite element model containing matrix, bonding interfa...

Simulation models are commonly used as an aid to decision making for oilfield development and operations. Such models represent information uncertainty and alternate operational strategies and form a design space, which is used by engineers to explore different “what-if” scenarios. As the composition of the engineering team changes over the lifetime of the oilfield and new modeling requirements...

A rock failure criterion is very important for prediction of the ultimate strength in rock mechanics and geotechnics; it is determined for rock mechanics studies in mining, civil, and oil wellborn drilling operations. Also shales are among the most difficult to treat formations. Therefore, in this research work, using the artificial neural network (ANN), a model was built to predict the ultimat...

Manuscript for Applied and Environmental Microbiology 1 2 Application of denaturing high-performance liquid chromatography (DHPLC) for monitoring 3 sulfate reducing bacteria in oilfields 4 5 Outi Priha, Mari Nyyssönen, Malin Bomberg, Arja Laitila, Jaakko Simell, Anu Kapanen and 6 Riikka Juvonen 7 8 VTT Technical Research Centre of Finland, Tietotie 2, Espoo, Finland 9 Kemira, Luoteisrinne 2, Es...

The objective of this paper is to present a unified modeling framework to address the issues of uncertainty and complex fiscal rules in the development planning of offshore oil and gas fields which involve critical investment and operational decisions. In particular, the paper emphasizes the need to have as a basis an efficient deterministic model that can account for various alternatives in th...

Engineering development activities rely on computer-based models, which enclose technical data issued from different sources. In this heterogeneous context, retrieving, re-using and merging information is a challenge. We propose to annotate engineering models with concepts of domain ontologies, which provide data with explicit semantics. The semantic annotation makes it possible to formulate qu...