scholarly journals Experimental study of circular inlets effect on the performances of Gas-Liquid Cylindrical Cyclone separators (GLCC)

2020 ◽  
Vol 3 (SI1) ◽  
pp. First
Author(s):  
Ho Minh Kha ◽  
Nguyen Thanh Nam ◽  
Vo Tuyen ◽  
Nguyen Tan Ken
Keyword(s):  
Oil And Gas ◽  
New Technology ◽  
Oil And Gas Industry ◽  
Critical Element ◽  
Gas Industry ◽  
Cylindrical Cyclone ◽  
Inlet Geometry ◽  
Petroleum Companies ◽  
Two Phases ◽  
The One

The gas-liquid cylindrical cyclone (GLCC) separators is a fairly new technology for the oil and gas industry. The current GLCC separator, a potential alternative for the conventional one, was studied, developed, and patented by Chevron company and Tulsa University (USA). It is used for replacing the traditional separators that have been used over the last 100 years. In addition, it is significantly attracted to petroleum companies in recent years because of the effect of the oil world price. However, the behavior of phases in the instrument is very rapid, complex, and unsteady, which may cause the difficulty of enhancing the performance of the separation phases. The multiple recent research shows that the inlet geometry is probably the most critical element that influences directly to the performance of separation of phases. Though, so far, most of the studies of GLCC separator were limited with the one inlet model. The main target of the current study is to deeply understand the effect of different geometrical configurations of the circular inlet on performances of GLCC by the experimental method for two phases flow (gas-liquid). Two different inlet configurations are constructed, namely: One circular inlet and two symmetric circular inlets. As a result, we propose the use of two symmetric circular inlets to enhance separator efficiency because of their effects.

Effect of the Inlet Geometry on the Flow in a Cylindrical Cyclone Separator

2006 ◽  
Vol 128 (1) ◽  
pp. 62-69 ◽  
Author(s):  
Ferhat M. Erdal ◽  
Siamack A. Shirazi
Keyword(s):  
Oil And Gas ◽  
Flow Behavior ◽  
New Technology ◽  
Tangential Velocity ◽  
Oil And Gas Industry ◽  
Laser Doppler Velocimeter ◽  
Velocity Fluctuations ◽  
Contour Maps ◽  
Cylindrical Cyclone ◽  
Inlet Geometry

The use of Gas-Liquid Cylindrical Cyclone (GLLC©) separators for gas-liquid separation is a new technology for oil and gas industry. Consequently, it is important to understand the flow behavior in the GLLC© and the effect of different geometrical geometries to enhance separation. The main objective of this study is to address the effect of different inlet geometries on the flow behavior in the GLLC© by measuring velocity components and the sum of the axial and tangential velocity fluctuations inside the GLLC© using a Laser Doppler Velocimeter (LDV). Three different inlet geometries were considered, namely, one inclined inlet, two inclined inlets, and a gradually reduced inlet nozzle. Axial and tangential velocities and turbulent intensities across the GLLC© diameter were measured at 24 different axial locations (318-900mm below the inlet) for each inlet geometry. Flow rates of 0.00454 and 0.00063m3∕s were selected to investigate the effect of flowrate (Reynolds number) on the flow behavior. Color contour maps color contour plots of axial and tangential velocity and the sum of the axial and tangential velocity fluctuations revealed some remarkable details of the flow behavior.

The Effect of the Different Inlet's Structures of the Gas-Liquid Cylindrical Cyclone (GLCC) Separator

2019 ◽  
Vol 894 ◽  
pp. 112-125
Author(s):  
Minh Kha Ho ◽  
Thanh Nam Nguyen ◽  
Ngoc Phuong Nguyen ◽  
Vo Tuyen
Keyword(s):  
Oil And Gas ◽  
Separation Efficiency ◽  
Oil And Gas Industry ◽  
Gas Industry ◽  
Cylindrical Cyclone ◽  
Symmetric Square ◽  
Two Phases ◽  
And Performance ◽  
Carry Over ◽  
Two Phases Flow

The inlet’s geometry is always the core factor that directly affects hydrodynamics and separation efficiency of the cyclone separation types. The Gas-Liquid Cylindrical Cyclone (GLCC) separators have been developed in recent years to separate into single phases of multiphase mixtures in the oil and gas industry. It is used to substitute for the traditional separator that is used over 100 years. However, the action of phases in the instrument is very fast, complicated and unsteady which may cause the difficulty to enhance the performance of the separation phases. Besides, the effect of inlet’s structures over its hydrodynamics and performance is not fully understood. The target of this study is to use experimental modeling for two phases flow (gas-water) to evaluate the effect of inlet geometrical modifications in the reduction of liquid carry-over (LCO). Four different inlet configurations are constructed, namely: One circular inlet, two symmetric circular inlets, one square inlet and two symmetric square inlets with the gradually reduced nozzle. From the results presented in this work, we propose the use of two symmetric inlets to enhance the separator efficiency because of their effects.

Implementations

2019 ◽  
pp. 180-190
Keyword(s):  
Large Scale ◽  
Process Management ◽  
Oil And Gas ◽  
Oil And Gas Industry ◽  
Organizational Structures ◽  
Gas Industry ◽  
Analysis Process ◽  
Petroleum Companies ◽  
Market Factors ◽  
Potential Methods

The distinctive feature of petroleum businesses is its wide scope. After crude oil or gas extraction, resulting semi-products undergo dozens of transformation stages in supply chains to reach the final customer. Combination of quantity and quality multiplied by external market factors produce price fluctuations that are challenging for world economics. In this regard process management might be carried out to improve supply chain performance and assure the maximum business predictability. However, for such large-scale organizations it requires big effort in operational analysis, process enhancement and process control via information systems which successfully support traditional management in function-oriented organizational structures. This chapter explores the developed engineering matrix that embraces potential methods and tools applicable for oil and gas industry. Additionally, it reveals industrial peculiarities and delivers case studies about Iranian and Hungarian petroleum companies.

Wet Compression: Performance Test of a 3D Impeller and Validation of Predictive Model

2016 ◽  
Author(s):  
Veronica Ferrara ◽  
Lars E. Bakken ◽  
Stefano Falomi ◽  
Giuseppe Sassanelli ◽  
Matteo Bertoneri ◽  
...  
Keyword(s):  
Performance Test ◽  
Oil And Gas ◽  
Dynamic Pressure ◽  
New Technology ◽  
Mechanical Damage ◽  
Oil And Gas Industry ◽  
Gas Industry ◽  
Compression Performance ◽  
Laboratory Setup ◽  
Wet Compression

In the last few years wet compression has received special attention from the oil and gas industry. Here, the development and implementation of new subsea solutions are important focus areas to increase production and recovery from existing fields. This new technology will contribute to exploitation of small and remote fields and access in very deep water. In this regard liquid tolerance represents a viable option to reduce the cost of a subsea compression station bringing considerable simplification to the subsea process itself. However, the industry may experience some drawbacks: the various levels of liquid presence may create operational risk for traditional compressors; the liquid may cause mechanical damage because of erosion and corrosion of the internal units and the compressor performance might be affected too. The experimental investigation conducted in the study considers dry and wet conditions in a laboratory setup to understand how the presence of liquid influences the stage performance. The test campaign has been carried out at the Norwegian University of Science and Technology, NTNU, in Trondheim, to assess the performance and operating range of a tridimensional impeller when processing a mixture of gas and liquid phases. Experimental results allowed validating the OEM internal prediction code for compressors’ performance in wet conditions. Finally, the effect of liquid on machine operability has been assessed through a left-limit investigation by means of dynamic pressure probes readings in order to evaluate the stall/surge behaviour for different values of liquid mass fraction.

Successfully managing Aboriginal cultural heritage—LNG and other stories

2010 ◽  
Vol 50 (2) ◽  
pp. 698
Author(s):  
Paul Travers
Keyword(s):  
Cultural Heritage ◽  
Oil And Gas ◽  
Oil And Gas Industry ◽  
Essential Elements ◽  
Heritage Management ◽  
Duty Of Care ◽  
Gas Industry ◽  
Management Guidelines ◽  
Cultural Heritage Management ◽  
The One

The various LNG projects in Queensland presented industry and traditional owners with a unique set of circumstances. On the one hand, LNG proponents were required to engage individually with traditional owner groups regarding cultural heritage. On the other hand, traditional owner groups were dealing with a variety of LNG proponents each seeking agreement about the same thing but in different ways. The paper examines this issue, considers a number of the pitfalls, and asks whether there is a case for standardising the management of cultural heritage. The current review of the Commonwealth Aboriginal and Torres Strait Islander Heritage Protection Act 1984 appears to support this approach. This paper will also look at the various ways cultural heritage has been managed in Queensland, as well as in other states and territories, and assesses whether there really is a better way for proponents in the oil and gas industry to manage this issue. Paul Travers was responsible for developing Queensland’s Aboriginal Cultural Heritage Act 2003. He also drafted the Aboriginal cultural heritage duty of care and cultural heritage management guidelines under the legislation. He has worked with LNG proponents and traditional owners in relation to LNG projects in Queensland. He brings an interesting and unique take on the essential elements of successful cultural heritage management.

Harnessing the value of data in asset management for production assurance and to lower operating costs

2013 ◽  
Vol 53 (2) ◽  
pp. 491
Author(s):  
Paul Agar
Keyword(s):  
Asset Management ◽  
Net Present Value ◽  
Oil And Gas ◽  
New Technology ◽  
Critical Role ◽  
Oil And Gas Industry ◽  
Life Cycles ◽  
Critical Element ◽  
Management Decisions ◽  
Asset Data

With rising costs, a tight labour market, and prolonged global economic uncertainty, it is unsurprising that investment decisions are being re-evaluated across Australia's resources and energy industry. Amid this tough market environment, effective asset management has never been more important. Asset management was first adopted by Australia's oil and gas industry in the early 90s and is now well entrenched. There is widespread acknowledgement that it breaks down project complexity and plays a critical role in maximising project net present value. If done well, asset management takes a long-term view of asset life-cycles–from concept and creation, to services that deliver production assurance and lower costs. While these principles are well understood across the market, asset data capture and analysis–a critical element to successful asset management–requires ongoing review. Accurate and comprehensive asset data is the basis on which all good asset-management decisions are made. Developments in geographic information systems, SAP, and cloud-based technology are redefining the way asset data is collected, stored, analysed, and fed back into asset-management decisions. Asset managers of oil and gas assets should, therefore, be asking themselves three important questions: Are we using the latest technology to collect, store, and analyse asset data? Which project stakeholders need to interact with the data? Do our existing or planned asset-management models have the capacity to integrate and evolve with new technology as it develops?

Logic Sequence Prevents Launching Devices Downhole Out of Sequence

2014 ◽  
Author(s):  
Ricardo de Lepeleire ◽  
Nicolas Rogozinski ◽  
Hank Rogers ◽  
Daniel Ferrari
Keyword(s):  
Latin America ◽  
Oil And Gas ◽  
New Technology ◽  
Specific Area ◽  
Oil And Gas Industry ◽  
Gas Industry ◽  
Logic Control ◽  
Drilling Operations ◽  
Common Operation ◽  
Increasing Demand

Within the oil and gas industry, significant costs are often incurred by the operating company during the well-construction phase of drilling operations. Specifically, the operators cost to drill a well can cost tens or hundreds of millions of USD. One specific area where significant changes in drilling operations have occurred is in the offshore environment, specifically operations from mobile offshore drilling units (MODUs). With the ever-increasing demand for oil and gas, operators globally have increased drilling budgets in an effort to meet forecasted demand. However, the increased budgets are often eroded or offset by increasing drilling costs. Therefore, operators are continually in search of new technology, processes, or procedures to help improve drilling operations and overall operational efficiencies. One Latin America operator identified a common operation as a possible area where operational cost could be easily reduced through the implementation of systems that allow the manipulation of valve manifolds remotely. Additionally, operating such valve manifolds remotely enhanced operational safety for personnel, which was an equally important consideration. This paper details the evaluation of existing equipment and procedures and a process used to develop a new remote-control system using a machine logic control (MLC) that has been designed, built, tested, and deployed successfully on MODUs operating in Latin America.

scholarly journals Decision Diagram Algorithms to Extract Minimal Cutsets of Finite Degradation Models

Information ◽  
2019 ◽  
Vol 10 (12) ◽  
pp. 368 ◽  
Author(s):  
Antoine Rauzy ◽  
Yang
Keyword(s):  
Oil And Gas ◽  
Decomposition Theorem ◽  
Oil And Gas Industry ◽  
Gas Industry ◽  
Fault Trees ◽  
Attack Trees ◽  
Degradation Models ◽  
Reliability Block Diagrams ◽  
And Performance ◽  
The One

In this article, we propose decision diagram algorithms to extract minimal cutsets of finite degradation models. Finite degradation models generalize and unify combinatorial models used to support probabilistic risk, reliability and safety analyses (fault trees, attack trees, reliability block diagrams…). They formalize a key idea underlying all risk assessment methods: states of the models represent levels of degradation of the system under study. Although these states cannot be totally ordered, they have a rich algebraic structure that can be exploited to extract minimal cutsets of models, which represent the most relevant scenarios of failure. The notion of minimal cutsets we introduce here generalizes the one defined for fault trees. We show how algorithms used to calculate minimal cutsets can be lifted up to finite degradation models, thanks to a generic decomposition theorem and an extension of the binary decision diagrams technology. We discuss the implementation and performance issues. Finally, we illustrate the interest of the proposed technology by means of the use case stemmed from the oil and gas industry.

OIL AND GAS INDUSTRY IN WESTERN AUSTRALIA

1999 ◽  
Vol 39 (1) ◽  
pp. 30
Author(s):  
M. Meaton
Keyword(s):  
Western Australia ◽  
Oil And Gas ◽  
Oil And Gas Industry ◽  
Gas Production ◽  
The State ◽  
Full Potential ◽  
Gas Industry ◽  
Oil And Gas Production ◽  
Advantages And Disadvantages ◽  
Petroleum Companies

The oil and gas production sector in Western Australia has grown dramatically in recent years and now represents the largest resource sector in the State economy. The industry has a very promising future but it faces a number of challenges if it is to achieve its full potential. Its production location in remote parts of the State confers both advantages and disadvantages. Chief among the disadvantages is the challenge of convincing the community and government of the benefits from the industry when many of those benefits are not apparent to the majority of the population. The emphasis in this paper is on economic impacts, social benefits and community attitudes.WA has produced about 820 million barrels of oil and 2000 million barrels of natural gas when gas is calculated in energy equivalent terms. Petroleum energy production has increased dramatically over the last 15 years and the State is now a substantial energy exporter. Petroleum sources provide the energy for over 85% of the final energy used in the State. Total industry investment over the last 18 years has been nearly $21,000 million for an average of $3.2 million each day. Direct employment by petroleum companies is around 2,500 people with flow-on employment in the services sector estimated at over 17,000 people. Petroleum companies have been major contributors to government revenue and to the development of remote regions in WA.

New Technology Allows for Hands-Off Intervention During Cementing Operations Increasing Safety and Operational Efficiency

2021 ◽  
Author(s):  
Michael Ramon ◽  
Tony Wooley ◽  
Kyle Martens ◽  
Amy Farrar ◽  
Seth Fadaol
Keyword(s):  
High Risk ◽  
Oil And Gas ◽  
Service Providers ◽  
New Technology ◽  
Oil And Gas Industry ◽  
Field Studies ◽  
Gas Industry ◽  
Cement Line ◽  
Technological Advances ◽  
Hands On

Abstract The culture of safety within the oil and gas industry has undergone an evolution since the advent of significant E&P operations in the late 1800s. The initial focus on safety was to protect property, not people. This mentality has shifted over time to include a greater focus on the safety of personnel, in parallel with technology developments that have pushed the limits of operators’ and service providers’ abilities to drill and complete more complicated wells. The safety efforts introduced to date have yielded results in every major HS&E category; however, falls and dropped objects continue to be areas in need of improvement. During cementing rig up and operations there are still many manual activities that require working at heights in the derrick. New technological advances have allowed the industry to reduce the number of hands-on activities on the rig and operators have moved to eliminate these activities by automating operations. Man lifting operations are recognized as a high-risk activity and, as such, many rigs require special permitting. During cementing operations, not only are personnel lifted into hazardous positions, but they are usually equipped with potential dropped objects. Some of these objects, if dropped, reach an impact force that could seriously injure or, in worst cases, result in a fatality. During these operations, personnel are also hoisted along with a heavy cement line in very close proximity. This introduces other dangers such as tangling, pinch points, and blunt force trauma. These risks are heavily increased when working in adverse conditions, such as high winds or rough seas. By utilizing a wireless cement line make up device, along with wireless features on a cement head to release the darts/plugs/balls and operate the isolation valves, an operator can eliminate the need for hands-on intervention. This paper will discuss current cement head technologies available to the operator that allow them to improve safety and efficiencies in operational rig time. Three field studies will be presented that detail running cement jobs with all functions related to the wireless attributes of the cement head. The field studies will present the operational efficiencies achieved by utilizing the wireless features compared to the standard manual method. Before the recent introduction of a wireless cementing line make-up device, a wireless cement head still required hands-on intervention to rig up the tools, putting people in high-risk situations.

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