Environmentally acceptable surfactants applied for water-based paraffin control—novel technologies sustaining production of challenging Australian crudes

2014 ◽  
Vol 54 (1) ◽  
pp. 305
Author(s):  
Farrell Backus ◽  
Hans Oschmann ◽  
Mike Gunn ◽  
Evan Harvey
Keyword(s):  
Flow Line ◽  
Field Studies ◽  
Transport Systems ◽  
Multiphase Transport ◽  
Novel Technologies ◽  
Water Based ◽  
Removal Technology ◽  
Continuous Application ◽  
And Performance ◽  
New Generation

The use of environmentally acceptable surfactants in water-based products—as opposed to hydrocarbon-based products—offers significant benefits both from an environmental and performance perspective. Water, being a polar solvent, has a very limited capacity to dissolve non-polar hydrocarbons; however, a new generation of environmentally acceptable, novel surfactants has allowed the development of water-based wax removal technology that effectively penetrates layers of waxy deposits, and dissolves and disperses the removed paraffin. A conspicuous property of this new water-based paraffin remover is its ability (similar to some corrosion inhibitors) to migrate over surfaces resulting in the treatment of deposits not originally wetted by the product. The continuous application of environmentally acceptable surfactants in multiphase transport systems has not only prevented paraffin deposit formation but also has allowed for the removal of persistent paraffin deposits. These new chemistries have had excellent success in many areas, including Australian production fields. Cooper Basin field studies have shown that the application of these surfactants have significantly increased production through reduced downtime during winter months where high wax content producing wells traditionally would shut down due to flow line restrictions. This paper will review the selection and the application of these new surfactants in two Australian field locations.

scholarly journals Use of simulation model for measurement of MilkRun system performance

2019 ◽  
Vol 9 (1) ◽  
pp. 600-605 ◽  
Author(s):  
Gabriel Fedorko ◽  
Martin Vasil ◽  
Michaela Bartosova
Keyword(s):  
Simulation Model ◽  
Production Systems ◽  
Operational Performance ◽  
Transport Systems ◽  
Indirect Methods ◽  
Operational Characteristics ◽  
Wide Range ◽  
Effective Operation ◽  
And Performance ◽  
Plant Simulation

AbstractIntra-plant transport systems within their operation directly impact on the performance of production systems. For their effective operation, it is, therefore, necessary to realize evaluation of operational performance and effectivity. For the realization of this type of evaluation, in addition to a wide range of sensors that can be difficult for installation and operation, we can also use indirect methods that are equally able to provide reliable operational characteristics. Indirect analytical methods are presented above all by the approach which is based on the use of simulation methods. The method of computer simulation provides a wide range of options for the evaluation of efficiency and performance. The paper describes the use of a simulation model created in the program Tecnomatix Plant Simulation for analyzing the supply of production workplaces within the MilkRun system.

Lessons Learnt from Integrated Production Modelling and Performance Analysis of Gas Lift Wells of One of the Biggest Offshore Complexes in India

2021 ◽  
Author(s):  
Sagun Devshali ◽  
Ravi Raman ◽  
Sanjay Kumar Malhotra ◽  
Mahendra Prasad Yadav ◽  
Rishabh Uniyal
Keyword(s):  
Performance Analysis ◽  
Flow Line ◽  
Gas Injection ◽  
Injection Rate ◽  
Oil Wells ◽  
Nodal Analysis ◽  
Integrated Production ◽  
And Performance ◽  
Gas Lift ◽  
Production Modelling

Abstract The paper aims to discuss various issues pertaining to gas lift system and instabilities in low producer wells along with the necessary measures for addressing those issues. The effect of various parameters such as tubing size, gas injection rate, multi-porting and gas lift valve port diameter on the performance analysis of integrated gas lift system along with the flow stability have been discussed in the paper. Field X is one of the matured offshore fields in India which has been producing for over 40 years. It is a multi-pay, heterogeneous and complex reservoir. The field is producing through six Process Complexes and more than 90% of the wells are operating on gas lift. As most of the producing wells in the field are operating on gas lift, continuous performance analysis of gas lift to optimize production is imperative to enhance or sustain production. 121 Oil wells and 7 Gas wells are producing through 18 Wellhead platforms to complex X1 of the field X. Out of these 121 oil wells, 5 are producing on self and remaining 116 with gas lift. In this paper, performance analysis of these 116 flowing gas lift wells, carried out to identify various problems which leads to sub-optimal production such as inadequate gas injection, multi-porting, CV choking, faulty GLVs etc. has been discussed. On the basis of simulation studies and analysis of findings, requisite optimization/ intervention measures proposed to improve performance of the wells have been brought out in the paper. The recommended measures predicted the liquid gain of about 1570 barrels per day (518 barrels of oil per day) and an injection gas savings in the region of about 28 million SCFD. Further, the nodal analysis carried out indicates that the aforementioned gas injection saving of 28 million SCFD would facilitate in minimizing the back pressure in the flow line network and is likely to result in an additional production gain of 350 barrels of liquid per day (65 barrels of oil per day) which adds up to a total gain of 1920 barrels of liquid per day (583 barrels of oil per day). Additionally, system/ nodal analysis has also been carried out for optimal gas allocation in the field through Integrated Production Modelling. The analysis brings out a reduction in gas injection by 46 million SCFD with likely incremental oil gain of ~100 barrels of oil per day.

Health, comfort and performance of children in classrooms – New directions for research

2016 ◽  
Vol 26 (8) ◽  
pp. 1040-1050 ◽  
Author(s):  
Philomena M. Bluyssen
Keyword(s):  
School Environment ◽  
Learning Ability ◽  
Toxic Exposure ◽  
Literature Study ◽  
New Directions ◽  
And Performance ◽  
New Generation ◽  
Acoustic Conditions

Children spend more time in schools than in any other place except at home. Children are more susceptible than adults to effects of toxic exposure, but also to poor acoustic conditions. It is known for some time that unsatisfactory environmental conditions, can have both short-term and long-term health effects, and can affect productivity or learning ability of the children. The underlying literature study focusses on the role of the indoor school environment on the health, comfort and performance of children in classrooms. In the last decades, many studies all over the world have been performed to document the indoor environment in classrooms and to examine relations with diseases and disorders. An inventory is made of these studies, major identified issues are discussed and ‘new’ directions of research are proposed. It is concluded that new generation research studies should be focussed on engagement of the children in an active way, preferable in semi-lab environments, and taking account of all aspects and interactions between them.

scholarly journals The Social Contexts of Resilient Architecture

2021 ◽  
pp. 625-645
Author(s):  
Terri Peters
Keyword(s):  
Natural Resources ◽  
Environmental Performance ◽  
Climate Adaptation ◽  
Well Being ◽  
Social Contexts ◽  
The Social ◽  
Resilient Design ◽  
Design Projects ◽  
And Performance ◽  
New Generation

In architecture, the term resilience tends to be used narrowly describe a building’s structural and environmental performance in quantitative terms—but can a building be called resilient if it fails to make inspiring spaces for people, promote well-being, or improve people’s experience? The chapter begins by exploring how the term is currently evaluated in and around buildings, through discussion of related concepts such as sustainability, passive survivability, and performance gaps. The chapter traces the emergence of a new generation of building evaluation metrics and certification systems that are focused not solely on environmental performance but also consider synergies between people’s experience and our natural resources, such as Active House. The work of GXN and 3XN in Denmark are discussed, in relation to how their research explores resilience and sustainability by focusing on the social aspects of how buildings make people feel. Examples from the multifunctional, process-based strategies used in a series of new climate adaptation renovations in Copenhagen, Denmark, are discussed as exemplary resilient design projects that address neighborhood flooding by simultaneously improving the qualities of public spaces and better connecting people to nature. The chapter concludes with a discussion of how locally specific and socially focused designs can support more resilient environments for people.

scholarly journals Breathing Artifacts of Urban BioClimatic Layers for Post-Anthropocene Urban Environment

2021 ◽  
Vol 13 (20) ◽  
pp. 11307
Author(s):  
Marie Davidová
Keyword(s):  
Urban Design ◽  
Data Model ◽  
Architectural Design ◽  
Cultural Landscape ◽  
Visual Complexity ◽  
Field Studies ◽  
Qualitative Synthesis ◽  
Hard Data ◽  
And Performance ◽  
Climate Comfort

This article seeks the qualitative synthesis of schools of thought from extreme climate regions that could support urban biodiversity and climate change adaptation through architectural design. It proposes that climate comfort and biodiversity are closely related. This article suggests a possible systemic urban metabolism within a built environment that can support a transition to post-Anthropocene, where humans and other species live together in synergy. This article exemplifies and seeks systemic relations and reflections of gathered field studies documentation of case studies of breathing walls, envelopes, and screens generating bioclimatic layers in the cultural landscape, selected for their penetrability and performance. The samples from diverse study journeys that were codesigned through vernacular cultures and the author’s research by design speculations on the responsive screen ‘Ray’ are investigated and speculated upon through gigamapping (visual complexity mapping). This gigamapping is not to present any hard data model but to relate, inform and speculate on the investigated field that is grounded in research by design on cross-species coliving. This is approached through possible architectures and architectural and urban design parasites, transitioning towards synergetic landscapes of our envisioned colived and cocreated futures.

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