scholarly journals Research of the well efficiency improvement based on mathematical modeling

2018 ◽  
pp. 57-63
Author(s):  
V. Ya. Hrudz ◽  
V. V. Marushchenko ◽  
M. T. Savchuk ◽  
O. O. Filipchuk
Keyword(s):  
Mathematical Model ◽  
Oil And Gas ◽  
Surface Cleaning ◽  
Gas Production ◽  
Stable Operation ◽  
Efficiency Improvement ◽  
Oil And Gas Production ◽  
Well Efficiency ◽  
Production Complex ◽  
The Mathematical Model

The important aspect of oil and gas production complex is stable operation of flooded gas and gas condensate wells.This existing plunger lift designs were analyzed by the authors. The efficiency of plunger lifts in flooded and low-debit wells was determined. The facility for well internal tubing surface cleaning from liquid was developed. Based on mathematical model, the research of well efficiency improvement was performed. Based on calculations, the graphical dependence of the cleaning facility velocity on its position in the well tubing system. It was determined, that increase of liquid specific mass in the well tubing leads to decrease of the facility velocity. Based on the mathematical model, the patterns of the cleaning facility motion mode in well tubing were determined.

Produced water management - A mathematical model to trade-off economic cost and environmental impact for infrastructure utilisation

2020 ◽  
Author(s):  
Afrah AlEdan ◽  
Tohid Erfani
Keyword(s):  
Water Management ◽  
Mathematical Model ◽  
Environmental Impact ◽  
Oil And Gas ◽  
Produced Water ◽  
Economic Cost ◽  
Gas Production ◽  
Mixed Integer ◽  
Oil And Gas Production ◽  
High Level

<p>This research provides an overview on several areas related to produced water management including cost, treatment methods, recycling options and environmental impact. Produced water is a type of water that has been trapped in different quantities in underground formations. After extracting crude oil and during the production process, the associated water from underground formations is known as produced water. This type of water is by far the largest volume by product or waste stream associated with oil and gas production. It is likely containing high level of total dissolved solids because of its longer residence time under the ground in addition to the smaller flow rate<strong>.</strong> Moreover, many efforts have been paid globally to decrease the high salinity level in produced water by applying desalination technologies as sustainable water management solution.</p><p>Oilfield water management is one of the most challenging system and it follows a non-linear relationship between its components. We formulate and develop a mixed-integer mathematical model to a small case study related to Kuwait Oil Company for an optimal design and operations of produced water management. We show how the results allow studying the economic cost as well as environmental impact related to produced water management system.</p><p> </p><p> </p>

scholarly journals Research of current distribution by phases in asynchronous electric motor with a combined winding

2022 ◽  
Vol 23 (5) ◽  
pp. 56-70
Author(s):  
E. I. Gracheva ◽  
T. V. Tabachnikova ◽  
L. V. Shvetskova
Keyword(s):  
Power Supply ◽  
Electric Motor ◽  
Oil And Gas ◽  
Electricity Consumption ◽  
Voltage Regulation ◽  
Gas Production ◽  
Oil And Gas Production ◽  
Power Bus ◽  
Wide Range ◽  
Production Complex

THE PURPOSE. To consider the features of power supply system of oil and gas production complex, variety of layout of electrical complexes of producing wells. To develop a universal methodology for determining optimal voltage value in power supply center, that is, on substation power bus.METHODS. When calculating voltage in power supply center, which provides a certain amount of voltage on stator of most remote electric motor, method of equalizing potentials in nodes of outgoing line was used when calculating loads of elements of electrical complexes of producing wells. The development of a methodology for calculating optimal voltage of power supply center was carried out using the method of cognition, which was called ascent from simple to complex. The search for optimal voltage value of power supply center must be carried out by numerical methods with involvement of a software product that allows use of search algorithms.RESULTS. The article proposes a method for calculating optimal voltage of power supply center of outgoing line of an oil and gas producing enterprise. The developed technique can be applied under a wide range of energy optimization criteria and for any configuration of outgoing line circuit, takes into account technological features of the process of mechanized oil production and ensures a reduction in electricity consumption.CONCLUSION. The calculation method considered in article makes it possible to develop an optimal list of organizational and technical measures for voltage regulation in distribution network in order to reduce power consumption.

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