scholarly journals Mechanical Safety Analysis of the Gas Lift Completion String Used for a High-Pressure Sandwich Layer

2021 ◽  
Vol 0 (0) ◽  
pp. 0-0
Author(s):  
Wei Luo ◽  
Jing Wen ◽  
Weilin Qi ◽  
Ming Yang
Keyword(s):  
High Pressure ◽  
Safety Analysis ◽  
Gas Lift

scholarly journals Neutronic safety analysis of proposed reactor technologies for Ghana’s nuclear power plant using the MCNP code

2019 ◽  
Vol 34 (3) ◽  
pp. 238-242
Author(s):  
Rex Abrefah ◽  
Prince Atsu ◽  
Robert Sogbadji
Keyword(s):  
High Pressure ◽  
Power Plant ◽  
Nuclear Power Plant ◽  
Nuclear Power ◽  
Nuclear Reactor ◽  
Atomic Energy Commission ◽  
Clean Energy ◽  
Safety Analysis ◽  
Operating Conditions ◽  
The Government

In pursuance of sufficient, stable and clean energy to solve the ever-looming power crisis in Ghana, the Nuclear Power Institute of the Ghana Atomic Energy Commission has on the agenda to advise the government on the nuclear power to include in the country's energy mix. After consideration of several proposed nuclear reactor technologies, the Nuclear Power Institute considered a high pressure reactor or vodo-vodyanoi energetichesky reactor as the nuclear power technologies for Ghana's first nuclear power plant. As part of technology assessments, neutronic safety parameters of both reactors are investigated. The MCNP neutronic code was employed as a computational tool to analyze the reactivity temperature coefficients, moderator void coefficient, criticality and neutron behavior at various operating conditions. The high pressure reactor which is still under construction and theoretical safety analysis, showed good inherent safety features which are comparable to the already existing European pressurized reactor technology.

scholarly journals Assessment of CHF and Post-CHF Heat Transfer Models for High-Pressure Condition

2021 ◽  
Vol 9 ◽  
Author(s):  
Meiqi Song ◽  
Xiaojing Liu
Keyword(s):  
Heat Transfer ◽  
High Pressure ◽  
Literature Review ◽  
Prediction Models ◽  
Safety Analysis ◽  
Pressure Condition ◽  
Predictive Capability ◽  
The World ◽  
Transfer Models

Supercritical heat transfer systems may undergo trans-critical procedures and work at subcritical conditions during startup, shutdown, or some accidents. However, well-validated heat transfer models for the high-pressure condition (P/Pc>0.7) are still missing. In the present work, with exhaustive literature review, extensive experimental databanks of CHF and post-dryout heat transfer under high-pressure condition are established, respectively. Existing prediction models for the high-pressure condition are also summarized from all over the world. Thereby, with the aid of the high-pressure experimental databank, prediction models get evaluated. It has been demonstrated that CHF correlation developed by Song et al. shows good predictive capability. Post-dryout heat transfer could get well predicted by the Song correlation. These recommended prediction models could be implemented to upgrade safety analysis codes for simulation of trans-critical transients.

Single Point High Pressure Gas Lift Replaces ESP in Permian Basin Pilot Test

2019 ◽  
Author(s):  
Branden Pronk ◽  
William Elmer ◽  
Larry Harms ◽  
Will Nelle ◽  
James Hacksma
Keyword(s):  
High Pressure ◽  
Single Point ◽  
Pilot Test ◽  
Permian Basin ◽  
Gas Lift

Novel Well Flow-Control Valve for Flexible Well Completion and Application in Commingled Production of Oil and Gas in West Africa

2016 ◽  
Author(s):  
Joseph Bagal ◽  
Maximilien Hallaire ◽  
Paul Hazel
Keyword(s):  
High Pressure ◽  
Flow Control ◽  
Field Trial ◽  
Oil And Gas ◽  
Control Valve ◽  
Gas Production ◽  
Flow Control Valve ◽  
Well Completion ◽  
Gas Lift ◽  
Flow Valve

ABSTRACT This paper presents the development, qualification and field trial of a novel well flow valve that delivers unlimited zonal selectivity in single skin lower completion without the use of control lines. Control lines have limitations and risks due to complexity during deployment, restrictions on the number of zones, complications with liner hanger feed thru and associated wet connects. It is desirable to remove the control lines whilst maintaining the functionality of multi zone, variable choke flow control. The well flow valve is a full-bore, reliable and robust mechanically operated sleeve, qualified in accordance with ISO14998 including multiple open/close cycles, at a sustained unloading pressure of 1,500 psi, with highly customizable flow ports. The need for such a solution was identified by an operator in West Africa. The well objective was elevated from a gas producer to a well that required the flexibility to produce gas or oil with gas lift capability. The well flow valve was selected and required on site variable choke capability for both oil and gas production, with choke position verification, ability to handle dirty gas production without risk of plugging, compliant with a high rate and high pressure proppant frac along with ease of operation and long term reliability. The field trial included a high pressure proppant frac in the oil zone. In the shallower gas zone, three well flow valves were used to deliver variable choking capability from maximum gas flow rate with minimal delta P adjusting down to a choke size suitable for gas lift. The well flow valves were operated using a high expansion shifting key conveyed on eline through the 3 ½" production tubing. The shifting key expanded in the 4 ½" lower completion to open/close individually all the well flow valves in a single trip. Incorporating this new product overcame the challenges presented and met the objective of commingled production of oil and gas. The well flow control valve demonstrated flexibility through design, supply chain, manufacturing, and operations. This paper will also outline the future road map covering further developments of the well flow valve and its incorporation into an enhanced flexible lower liner solution aimed at lowering well completion costs and risks.

Transient safety analysis for simplified accelerator driven system with gas-lift pump

2018 ◽  
Vol 106 ◽  
pp. 181-194 ◽  
Author(s):  
Juanli Zuo ◽  
Wenxi Tian ◽  
Suizheng Qiu ◽  
Guanghui Su
Keyword(s):  
Safety Analysis ◽  
Driven System ◽  
Accelerator Driven System ◽  
Gas Lift

scholarly journals Development and experiment of casting and fishing high pressure gas-lift valve in deep well

2018 ◽  
Vol 189 ◽  
pp. 022066
Author(s):  
Zhan min ◽  
Cheng xinping ◽  
Shen qiong ◽  
Wang hong ◽  
Li ang
Keyword(s):  
High Pressure ◽  
Deep Well ◽  
Gas Lift

High-Pressure Gas Lift for Deep, Sour Production

1988 ◽  
Vol 3 (01) ◽  
pp. 109-112 ◽  
Author(s):  
R.J. Dickens
Keyword(s):  
High Pressure ◽  
Gas Lift

scholarly journals Safety analysis of high pressure 3He-filled micro-channels for thermal neutron detection.

2008 ◽  
Author(s):  
Scott M. Ferko ◽  
Paul C. Galambos ◽  
Mark Steven Derzon ◽  
Ronald F. Renzi
Keyword(s):  
High Pressure ◽  
Thermal Neutron ◽  
Neutron Detection ◽  
Safety Analysis ◽  
Micro Channels

Simulation studies and safety analysis of high pressure milling vials for the direct synthesis of high capacity metal hydrides

2015 ◽  
Vol 40 (14) ◽  
pp. 5006-5012 ◽  
Author(s):  
D. Pukazhselvan ◽  
J. Perez ◽  
Ricardo Beja ◽  
Carla Maria Vieira Lopes ◽  
Francisco Queiros de Melo ◽  
...  
Keyword(s):  
High Pressure ◽  
Direct Synthesis ◽  
High Capacity ◽  
Metal Hydrides ◽  
Safety Analysis ◽  
Simulation Studies
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