Submersible Pump with Line Shaft Pump in Shallow Water, Optimum Selection for Offshore Application in the Oil & Gas Industry

2021 ◽  
Author(s):  
Shafir Mohammed ◽  
Ibrahim Kobbia
Keyword(s):  
Life Cycle Cost ◽  
Capital Investment ◽  
Oil And Gas ◽  
Cost Effective ◽  
Oil And Gas Industry ◽  
Vertical Line ◽  
Submersible Pump ◽  
Gas Industry ◽  
Electrical Submersible Pump ◽  
Operational Expenditure

Abstract Seawater is an essential fluid used in various process circuits, such as cooling, reinjection into the wells and utilities, etc., in the offshore oil and gas industry. Vertical pumps facilitates with lifting seawater to the platform. This study investigates and compares two pump alternatives that has been widely used in oil and gas industry for seawater lift application: Vertical line-shaft pump and Electrical submersible pump. Existing seawater lift pump operating parameters are used as the basis of this study. The pump that is considered for the study has a flow rate of 3415 US GPM (776 m3/hr.) with a total head of 250 ft. The motor rating is 350 HP. The overall length of the pump is 21 meters. The main methodology used is a Life Cycle Cost Analysis (LCC) where the total cost of ownership of the vertical line-shaft pump and electrical submersible pump were analyzed for a period of 30 years. Furthermore, this research also addresses the operational drawbacks associated with both the pumps. Submersible pumps have higher initial capital investment cost when compared to line-shaft pump of similar capacity and size. The energy consumption cost of submersible pumps are higher mainly owing to lower efficiencies of the motors. The power factor for submersible pumps are lower in relation to line- shaft pumps. One of the main benefits of submersible pumps are their less installation and pump pullout time. Submersible pumps occupies lower space above ground when compared to line-shaft pumps. Additionally, submersible pumps are less noisy and have lower vibration in comparison to line-shaft pumps. This paper aims to provide key information and knowledge for engineers to make prudent decision regarding selection of the most cost effective pump for the seawater lift application with a tangible added cost value to both Capital Expenditures (CAPEX) and Operational Expenditure (OPEX).

Electrical Submersible Pump Prognostics and Health Monitoring Using Machine Learning and Natural Language Processing

2021 ◽  
Author(s):  
Rajeev Ranjan Sinha ◽  
Supriya Gupta ◽  
Praprut Songchitruksa ◽  
Saniya Karnik ◽  
Amey Ambade
Keyword(s):  
Machine Learning ◽  
Language Processing ◽  
Oil And Gas ◽  
Oil And Gas Industry ◽  
Operating Conditions ◽  
Learning Approaches ◽  
Submersible Pump ◽  
Gas Industry ◽  
Electrical Submersible Pump ◽  
Low Efficiency

Abstract Electrical Submersible Pump (ESP) systems efficiently pump high volumes of production fluids from the wellbore to the surface. They are extensively used in the oil and gas industry due to their adaptability, low maintenance, safety and relatively low environmental impact. They require specific operating conditions with respect to the power, fluid level and fluid content. Oilfield operation workflows often require extensive surveillance and monitoring by subject-matter experts (SMEs). Detecting issues like formation of unwanted gas and emulsions in ESPs requires constant analysis of downhole data by SMEs. The lack of adequate and accurate monitoring of the downhole pumps can lead to low efficiency, high lifting costs, and frequent repair and replacements. There are 3 workflows described in the paper which demonstrate that the maintenance costs of the ESPs can be significantly reduced, and production optimized with the augmentation of machine learning approaches typically unused in ESP surveillance and failure analysis.

scholarly journals Multiphase gas-flow model of an electrical submersible pump

2018 ◽  
Vol 73 ◽  
pp. 29
Author(s):  
Diana Marcela Martinez Ricardo ◽  
German Efrain Castañeda Jiménez ◽  
Janito Vaqueiro Ferreira ◽  
Pablo Siqueira Meirelles
Keyword(s):  
Gas Flow ◽  
Oil And Gas ◽  
Learning Algorithm ◽  
Estimation Error ◽  
Oil And Gas Industry ◽  
Support Vector ◽  
System Response ◽  
Submersible Pump ◽  
Two Phase ◽  
Electrical Submersible Pump

Various artificial lifting systems are used in the oil and gas industry. An example is the Electrical Submersible Pump (ESP). When the gas flow is high, ESPs usually fail prematurely because of a lack of information about the two-phase flow during pumping operations. Here, we develop models to estimate the gas flow in a two-phase mixture being pumped through an ESP. Using these models and experimental system response data, the pump operating point can be controlled. The models are based on nonparametric identification using a support vector machine learning algorithm. The learning machine’s hidden parameters are determined with a genetic algorithm. The results obtained with each model are validated and compared in terms of estimation error. The models are able to successfully identify the gas flow in the liquid-gas mixture transported by an ESP.

scholarly journals Characterization and Treatment Technologies Applied for Produced Water in Qatar

Water ◽  
2021 ◽  
Vol 13 (24) ◽  
pp. 3573
Author(s):  
Hana D. Dawoud ◽  
Haleema Saleem ◽  
Nasser Abdullah Alnuaimi ◽  
Syed Javaid Zaidi
Keyword(s):  
Natural Gas ◽  
Oil And Gas ◽  
Produced Water ◽  
Cost Effective ◽  
Oil And Gas Industry ◽  
Gas Industry ◽  
Treatment Techniques ◽  
Treatment Technologies ◽  
Oil Gas

Qatar is one of the major natural gas (NG) producing countries, which has the world’s third-largest NG reserves besides the largest supplier of liquefied natural gas (LNG). Since the produced water (PW) generated in the oil and gas industry is considered as the largest waste stream, cost-effective PW management becomes fundamentally essential. The oil/gas industries in Qatar produce large amounts of PW daily, hence the key challenges facing these industries reducing the volume of PW injected in disposal wells by a level of 50% for ensuring the long-term sustainability of the reservoir. Moreover, it is important to study the characteristics of PW to determine the appropriate method to treat it and then use it for various applications such as irrigation, or dispose of it without harming the environment. This review paper targets to highlight the generation of PW in Qatar, as well as discuss the characteristics of chemical, physical, and biological treatment techniques in detail. These processes and methods discussed are not only applied by Qatari companies, but also by other companies associated or in collaboration with those in Qatar. Finally, case studies from different companies in Qatar and the challenges of treating the PW are discussed. From the different studies analyzed, various techniques as well as sequencing of different techniques were noted to be employed for the effective treatment of PW.

Australia's shale industry – how we can become globally competitive

2019 ◽  
Vol 59 (2) ◽  
pp. 546
Author(s):  
Peter Cox
Keyword(s):  
Engineering Design ◽  
Life Cycle Cost ◽  
Oil And Gas ◽  
Oil And Gas Industry ◽  
Project Delivery ◽  
New Paradigm ◽  
Gas Industry ◽  
The Us ◽  
Pipeline Networks ◽  
Industry Practice

Project delivery technology is changing and developing at a rapid rate, and Australia’s oil and gas industry could do a better job of embracing change and getting to the forefront of advanced digital technology applied to developing onshore gas resources – particularly to our vast undeveloped shale reserves. Our shale deposits are in remote parts of our country, so present significant challenges, especially in relation to geographical distance away from local and international markets. This paper will focus on the use of automation and standardisation in the engineering design process combined with project execution strategies to significantly reduce both schedule and cost in delivering surface infrastructure required to get our gas shale reserves to both domestic demand centres and export facilities. The traditional project delivery models that have served us well in the past need to be challenged and a new paradigm adopted. Standardisation of the compression and dehydration facilities in the US market has been developed over many years, resulting in efficient project delivery, and enabling reserves to be brought to market on a fast track basis. This paper will work through practices in the US and how they can be applied to Australia. Australian standards and industry practice defines how we design our gathering and pipeline networks. This paper will present a combination of construction strategies and automation of engineering design to optimise life cycle cost in remote regions where construction mobilisation and logistics is a significant factor combined with changing priorities as further reservoir data is obtained from exploration wells.

The impact of oil and gas infrastructure in marine ecosystems: a global vision for informing decommissioning decisions

2020 ◽  
Vol 60 (2) ◽  
pp. 476
Author(s):  
D. L. McLean ◽  
T. Bond ◽  
J. C. Partridge ◽  
S. Rouse ◽  
M. Love
Keyword(s):  
Oil And Gas ◽  
Research Priorities ◽  
Cost Effective ◽  
Oil And Gas Industry ◽  
Environmental Data ◽  
Research Network ◽  
Gas Industry ◽  
Marine Research ◽  
Geographical Regions ◽  
The Impact

The offshore hydrocarbon basins of the world and their neighbouring countries are faced with an immense decommissioning challenge. Uncertainties in regulation and costs, coupled with limited environmental data, stifle consideration and support for alternative options to full removal. In separate regions, scientists and industry are forming partnerships and commencing research that advances understanding of regional and ecosystem-scale processes, including the habitat value of oil and gas infrastructure. With similar decommissioning-related marine research priorities being identified globally, a more coordinated approach to such research is needed: a global decommissioning marine research network and taskforce. This taskforce would not only be highly cost-effective, but it would also enable consistent approaches to science and management of the marine environment and secure protection and conservation of global marine resources. This network and taskforce would bring together leading scientists and experts in the oil and gas industry to develop an international research program that will significantly advance our understanding of the consequences to ecosystems as a result of decommissioning, as well as identify the differences and commonalities in environment–infrastructure interactions across different geographical regions. The outcomes would support sustainable installation and decommissioning practices worldwide and ensure that policies adhere to international agreements on environmental protection.

A Structured Approach to Supplier Performance Measurement

2000 ◽  
Author(s):  
K. E. W. Coulson ◽  
T. C. Slimmon ◽  
M. A. Murray
Keyword(s):  
Performance Measurement ◽  
Oil And Gas ◽  
Cost Effective ◽  
Oil And Gas Industry ◽  
Line Pipe ◽  
Gas Industry ◽  
Pressure Line ◽  
Delivery Times ◽  
Supplier Performance ◽  
Structured Approach

The start of the new millennium will see companies in the oil and gas industry faced with a dual challenge. Not only will they have to undertake exploration in more demanding terrain and environments, but they also face far more competition in what they previously regarded as their traditional marketplace. The goal of meeting both shareholder and customer needs, while simultaneously attempting to increase market share by becoming more competitive, will be paramount if this success is to be achieved. While a number of strategies have been developed over the last decade in an attempt to achieve and balance these financial goals, the control and reduction of costs play a significant part in all such ‘cost effective’ programs. Past approaches have targeted the organisational structure, internal processes and strategic advantage through acquisitions, mergers and downsizing. However, any gains realised by such programs must be continuously improved upon by implementing innovative approaches to future reductions and controlling costs. Some companies have shifted the focus from internal cost scrutiny to influencing and ultimately controlling external factors of cost. The supply chain offers a tremendous opportunity to drive out costs, one such approach being to partner with the best suppliers of key components to shorten delivery times while minimizing life cycle costs. It is therefore paramount that one distinguishes between those who are simply suppliers and that smaller group who are the best suppliers, all the while fostering a win-win relationship by sharing growth and profitability. This paper will introduce the concepts of the Supplier Performance Measurement Process (SPMP), which NOVA / TransCanada introduced in late 1997 to measure and manage its suppliers’ performance in the provision of a few strategically critical commodities. To provide context for this paper two such commodities, high pressure line pipe and high integrity pipe coatings are addressed in some detail. The application of the process to these commodities alone yielded a capital cost reduction of 6%. The paper explains in practical terms, the steps involved in the implementation of SPMP, and provides a simple process for eliciting feedback on the efficacy of the procurement process.

Efficient and cost effective power and temperature control is critical to oil and gas operations

2017 ◽  
Vol 57 (2) ◽  
pp. 680
Author(s):  
Christopher John Wheeler
Keyword(s):  
Temperature Control ◽  
Oil And Gas ◽  
Cost Effective ◽  
Oil And Gas Industry ◽  
Liquefied Natural Gas ◽  
Gas Industry ◽  
Effective Power ◽  
Oil And Gas Producers ◽  
Oil And Gas Operations

The availability of reliable, cost effective power and temperature control is critical to all facets of oil and gas operations around the globe. Dropping of global oil prices has had significant effects on long-term liquefied natural gas contracts. Oil and gas producers have experienced a decline in profits, and unprecedented pressure has been put on these companies to remain viable. Many marginal operators have experienced freezing of exploration budgets, delays on future planned expansions and the wind down of non-essential operations. Herein are four case studies from the oil and gas industry, which highlight several business solutions that assisted companies to stabilise their profits by starting production early, reducing operational down time and assisting process efficiencies.

Effect of Straining and Ageing on Longitudinal Tensile Properties of Linepipe Suitable for Deepwater Applications

2018 ◽  
Author(s):  
Melissa Marsay ◽  
Martin Connelly ◽  
Graham Alderton
Keyword(s):  
Tensile Properties ◽  
Oil And Gas ◽  
Cost Effective ◽  
Oil And Gas Industry ◽  
Gas Industry ◽  
Test Pieces ◽  
Offshore Oil And Gas ◽  
Set Up ◽  
High Level ◽  
Offshore Oil

The offshore oil and gas industry has seen a continual trend of conservatism in design for applications where a high level of strain is expected during the installation phase, leading to a tightening of the acceptable mechanical property performance of the linepipe. This is especially true with regards to longitudinal tensile properties in the strained and aged condition. Due to the expected change in data seen throughout previous projects, are the tightening expectations realistic for the manufacturers and cost effective for the client? The current condition that is widely accepted for the release of pipes suitable for high strain events is straining and ageing. However is this appropriate given that pipes are coated (aged), installed (strained) then left over time (aged)? These questions will be investigated through a series of tests and data analysis. For this project a conventional ageing as per the standard and a coating simulation were used, with all test pieces having either 0% or 1% applied strain. The test pieces for this project were tested in one of seven conditions; • As manufactured • Aged (at 200°C/5min or 250°C/1hr) • Strained and aged (1% strain applied then aged at 200°C/5min or 250°C/1hr) • Aged and strained (aged at 200°C/5min or 250°C/1hr then 1% strain applied) To ensure a direct comparison in the data the comparable test pieces were taken from the same circumferential position on the pipe. All testing for this project was carried out on material of a similar composition and future development of this work will comprise of documenting the effect on different microstructures, t/D ratios and levels of strain. It was clear from the project that changing the conditions used had an impact on the results. This could have implications for the industry in the future and has set up a scheme of development following on from this project to gain a greater understanding.

A brine mixing mobile unit in oil and gas industry—An example of a cost-effective, efficient, and environmentally justified technical solution

2016 ◽  
Vol 38 (23) ◽  
pp. 3470-3477 ◽  
Author(s):  
Jasmina Perisic ◽  
Marina Milovanovic ◽  
Ivana Petrovic ◽  
Ljiljana Radovanovic ◽  
Marko Ristic ◽  
...  
Keyword(s):  
Oil And Gas ◽  
Cost Effective ◽  
Oil And Gas Industry ◽  
Technical Solution ◽  
Mobile Unit ◽  
Gas Industry
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