Small-Diameter Gas Lift Systems-A Viable Technical Solution for Transport of Fluids From Low-Pressure Reservoirs

2004 ◽  
Author(s):  
J.A. Becaria ◽  
P. Toma ◽  
E. Kuru
Keyword(s):  
Small Diameter ◽  
Low Pressure ◽  
Technical Solution ◽  
Gas Lift

Utilization of Emissions from Reactors of a Delayed Coking Installation

2020 ◽  
Vol 24 (11) ◽  
pp. 4-9
Author(s):  
M.K. Dexenov ◽  
F.R. Ismagilov
Keyword(s):  
Low Pressure ◽  
Hydrocarbon Fraction ◽  
Working Fluid ◽  
Technical Solution ◽  
Test Results ◽  
Hydrocarbon Gases ◽  
Delayed Coking ◽  
Diesel Fuels ◽  
Low Viscosity ◽  
Working Liquid

The features of utilization of low-pressure gas emissions from reactors of a delayed coking installation are considered. A technical solution has been proposed for the compression and purification of low-pressure hydrocarbon gases from hydrogen sulfide by using a liquid-ring compressor with an amine solution mixed with a hydrocarbon fraction taken in a certain ratio as a working liquid. Gasolines, kerosene, diesel fuels and any other hydrocarbon mixtures with low viscosity can be used as the hydrocarbon fraction. Preferably use gaseous gasoline obtained during the compression of gas or distillate in the main distillation column. Test results and computational studies confirm the advantages of using a binary working fluid compared to using the components separately.

New Gas-Lift Concept-Continuous-Flow Production Rates From Deep, Low-Pressure Wells

1974 ◽  
Vol 26 (01) ◽  
pp. 13-18
Author(s):  
E.E. DeMoss ◽  
R.C. Ellis ◽  
G.S. Kingsley
Keyword(s):  
Continuous Flow ◽  
Low Pressure ◽  
Production Rates ◽  
Gas Lift

A Novel Approach to Risk Management of Belowground Natural Gas Migration From Leaks on Low-Pressure Pipelines

2020 ◽  
Author(s):  
Kim Maddin ◽  
Dongliang Lu ◽  
Aleksandar Tomic
Keyword(s):  
Risk Assessment ◽  
Public Safety ◽  
Management Practices ◽  
Small Diameter ◽  
Low Pressure ◽  
The United States ◽  
Operating Conditions ◽  
Gas Migration ◽  
Confined Space ◽  
Leak Management

Abstract Small-diameter, low-pressure pipelines (operated at pressures below 40 percent of specified minimum yield strength [SMYS]) are unlikely to experience a rupture but may be vulnerable to leaks. In general, gas leaks result in less significant consequences to public safety than ruptures; however, under certain circumstances leaks may represent a significant threat. In particular, leaks resulting in belowground gas migration from low-pressure pipelines to a nearby confined space (e.g. the basement of a nearby structure to which the pipeline is not physically connected) may result in significant consequences as accumulation of gas to flammable or explosive levels may be possible. This paper explores the methods by which an Operator may address the threat of gas migration from leaks on low pressure pipelines in its risk assessment and leak management programs. Research was conducted into the specific conditions that contribute to belowground gas migration and included: a literature review of studies into gas migration phenomena, and a review of historical incidents within the United States on similar pipeline systems which resulted in significant property damage, injuries, or fatalities. The research included consideration of the effect of pipeline operating conditions, pipeline attributes (including diameter and depth of cover), leak duration, proximity of nearby structures, attributes of nearby structures (including presence of basements, slabs, and openings in the foundations), leak severity (e.g. pinhole, full separation), ground conditions (including soil permeability and presence of belowground features), and gas odorization. Key conditions impacting the potential for belowground gas migration are identified, and risk assessment methods and leak management practices are recommended based on the likelihood of migration. Based on the research conducted and the environmental conditions identified, a quantitative risk assessment approach, taking into account the likelihood of a leak on a low-pressure pipeline, the likelihood of belowground gas migration, and the potential consequences to public safety, is proposed.

Utilization of Emissions from Reactors of a Delayed Coking Installation

2020 ◽  
Vol 24 (11) ◽  
pp. 4-9
Author(s):  
M.K. Dexenov ◽  
F.R. Ismagilov
Keyword(s):  
Low Pressure ◽  
Hydrocarbon Fraction ◽  
Working Fluid ◽  
Technical Solution ◽  
Test Results ◽  
Hydrocarbon Gases ◽  
Delayed Coking ◽  
Diesel Fuels ◽  
Low Viscosity ◽  
Working Liquid

The features of utilization of low-pressure gas emissions from reactors of a delayed coking installation are considered. A technical solution has been proposed for the compression and purification of low-pressure hydrocarbon gases from hydrogen sulfide by using a liquid-ring compressor with an amine solution mixed with a hydrocarbon fraction taken in a certain ratio as a working liquid. Gasolines, kerosene, diesel fuels and any other hydrocarbon mixtures with low viscosity can be used as the hydrocarbon fraction. Preferably use gaseous gasoline obtained during the compression of gas or distillate in the main distillation column. Test results and computational studies confirm the advantages of using a binary working fluid compared to using the components separately.

scholarly journals Production optimization of a network of multiple wells with each well using a combination of Electrical Submersible Pump and Gas lift

2021 ◽  
Author(s):  
Son Tung Pham ◽  
Dinh Hau Tran
Keyword(s):  
Energy Saving ◽  
Production Rate ◽  
Small Diameter ◽  
Production Optimization ◽  
Optimization Process ◽  
Binary Search Tree ◽  
Optimum Operating ◽  
Total Production ◽  
Artificial Lift ◽  
Gas Lift

AbstractArtificial lift methods such as ESP and GL are commonly used in oil wells around the world, especially in offshore wells. However, these two methods are normally used separately, and this paper therefore aimed to study the possible combination of ESP and GL by analyzing its effects on energy saving using equivalent depth method and on production rate as well as on ESP life cycle using nodal analysis. The paper also performed the production optimization for a network of wells using each well a combination of GL and ESP. The optimization process consists of selecting the appropriate operation frequency for the ESP system and the injection gas lift distributed to each well with the aim of maximizing the total production of the network. In addition, this optimization process was conducted in two cases: unlimited and limited volume of injection gas lift. In case the GL flow is limited, the BST (Binary Search Tree) algorithm was used to determine the suitable gas rates injected into each well to maximize the total network production. The optimization workflow proposed in this study was applied to the field X in Cuu Long basin of Vietnam and was calibrated from the real data of this field. The results demonstrated the advantage of the combination of ESP and GL in energy saving and in application for small diameter wells. In addition, the workflow and source code will allow engineers to replicate the results and to apply this method for future studies in order to determine optimum operating parameters of this hybrid artificial lift to achieve the highest production rate from a network of multiple wells.

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