Unlocking the True Value of Permanent Acoustic Sensors via Integration in a Digital Field as a Proactive Method of Sand Monitoring in Gas Wells

2021 ◽  
Author(s):  
Qi Zheng Lee ◽  
Wei Jian Yeap ◽  
Sulaiman Sidek ◽  
Hazrina Abdul Rahman ◽  
Sarran Raj Kunasekaran ◽  
...  
Keyword(s):  
Real Time ◽  
Cost Benefit Analysis ◽  
Cost Benefit ◽  
Holistic Approach ◽  
Field Monitoring ◽  
Acoustic Sensors ◽  
Sand Production ◽  
Gas Wells ◽  
Cascading Effects ◽  
True Value

Abstract Sand production is one of the operators’ intimidating challenges as the cascading effects can cause significant damages to the surface equipment and often lead to costly clean-up effort. Its effects are further amplified in gas wells with higher gas velocities lead to more detrimental effects on the facilities. Consequently, the facilities will deteriorate, leading to uncontrolled hydrocarbon release which compromise the operation safety considerably. Hence, sand detection devices such as acoustic sensors are extremely crucial to detect sand production as early as possible prior to any undesirable damage. This paper highlights the selection reasoning and advantages of permanent acoustic sensors as well as the method in maximizing the data value through integration with digital field monitoring. Various sand monitoring equipment are available in the industry and its selection is mainly driven by operators’ purpose with cost-benefit analysis. The multi-disciplinary team collaboratively decided on a holistic approach of utilizing the permanent acoustic sensors to its maximum potential. Integration of permanent acoustic sensors with digital field monitoring further improves the investment return as the sensors can provide real-time sand production data. Effective real time sand monitoring can be performed by both offshore and onshore crews where immediate countermeasure can be deployed if abnormal readings detected. When handling sand prone wells, proactive measures have been proven to be more effective if compared to reactive measures. Each well production potential can be maximized by installing sand sensors to ensure safe operating envelope without sand production as well as to trigger alarm if sand detected. The key to unlocking the potential is to ensure data is effectively transmitted to the command center and to the office via our digital field system. The operators are also trained on the next course of action such as beaning down the wells to safe operational envelope in case of sand breakthrough. The value of the acoustic sensors outweighs the total cost involved as real-time sand monitoring system helps to safeguard surface facility integrity considerably.

Yamuna Action Plan-III: Impact on Water Quality of River Yamuna, India

2021 ◽  
pp. 1-10
Author(s):  
Ankit Srivastava ◽  
Prathna T.C.
Keyword(s):  
Cost Benefit Analysis ◽  
Action Plan ◽  
Treatment Plant ◽  
Cost Benefit ◽  
Holistic Approach ◽  
Pollutant Load ◽  
River Ganges ◽  
The World ◽  
River Yamuna ◽  
The Impact

Water is indispensable to sustain life and livelihood, and rivers serve as major reservoirs of water in manyparts of the world. River Yamuna is the major tributary of the River Ganges in India and is considered to be among the most polluted rivers of the world. The Yamuna Action Plan (YAP) is one of the largest river restoration projects in India and is initiated to clean the river. YAP is a bilateral arrangement between the governments of India and Japan, and consists of three Actions Plans-I, II and III. YAP-III is currently under execution with some of the major projects being the construction of the new Wastewater Treatment Plant (WWTP) at Okhla, rehabilitation and upgrading of WWTPs at Kondli and Rithala in the Delhi region. The impact of YAP-III with regard to these major projects on the reduction of the pollutant load reaching the river and cost-benefit has been evaluated in the current study. Findings from the study indicated that major projects such as construction of a new WWTP at Okhla (124 MGD) can effectively reduce the pollutant load by 283 kg/MGD of wastewater at a cost of Rs. 1161 crores while the rehabilitation project at Rithala (Phase I) can reduce the pollutant load by 92.5 kg/MGD wastewater at a cost of Rs. 300 crores. The present study indicates the need to evaluate projects in terms of cost-benefit analysis in addition to the economic and environmental evaluation for effective action. A holistic approach towards treatment of pollutant load in the river and prevention of further pollutants from reaching the river is required in addition to community awareness and participation for sustainable river water management.

scholarly journals Real Time Electrical Energy Monitoring and Cost Benefit Analysis using Smart Meter

2020 ◽  
Vol 8 (6S) ◽  
pp. 156-160
Keyword(s):  
Real Time ◽  
Cost Benefit Analysis ◽  
Cost Benefit ◽  
Electrical Energy ◽  
Energy Resources ◽  
Energy Utilization ◽  
Daily Lives ◽  
New Energy ◽  
The Cost ◽  
User Friendly

Energy is an essential component in supporting people’s daily lives and is a significant economical element in development of the country. The eventual depletion of conventional energy resources and their harmful impacts on environment as well as the rising energy costs and the limitations of new energy resources and technologies have pushed efficient energy management to the top of the agenda. But how the energy utilization can be managed? A simple answer to this is viable and real time metering, which enables calculation of run time energy consumption and obtaining the real-time as well as cumulative cost. In this research an Innovative hardware and IoT based solution to this problem is availed that could provide live information related to consumption of electricity by various appliances. The methodology used in this research is mainly based on a hardware tool named Elite 440 which is a meter and provides the data about various electrical parameters. This data so obtained is made visible on the dashboard in a user friendly. The data so visible includes various parameters like voltage, current, power factor etc. Also the data so obtained on the dashboard gets updated in each five minutes and simultaneously the cost gets updated which makes it real time monitoring System.

The challenge of prostate biopsy guidance in the era of mpMRI detected lesion: ultrasound-guided versus in-bore biopsy

2021 ◽  
pp. 20210363
Author(s):  
Auke Jager ◽  
Joan C Vilanova ◽  
Massimo Michi ◽  
Hessel Wijkstra ◽  
Jorg R Oddens
Keyword(s):  
Real Time ◽  
Selection Criteria ◽  
Cost Benefit Analysis ◽  
Imaging Techniques ◽  
Specific Antigen ◽  
Cost Benefit ◽  
Ultrasound Images ◽  
Current Recommendation ◽  
Detection Rates ◽  
Advantages And Disadvantages

The current recommendation in patients with a clinical suspicion for prostate cancer is to perform systematic biopsies extended with targeted biopsies, depending on mpMRI results. Following a positive mpMRI [i.e. Prostate Imaging Reporting and Data System (PI-RADS) ≥3], three targeted biopsy approaches can be performed: visual registration of the MRI images with real-time ultrasound imaging; software-assisted fusion of the MRI images and real-time ultrasound images, and in-bore biopsy within the MR scanner. This collaborative review discusses the advantages and disadvantages of each targeting approach and elaborates on future developments. Cancer detection rates seem to mostly depend on practitioner experience and selection criteria (biopsy naïve, previous negative biopsy, prostate-specific antigen (PSA) selection criteria, presence of a lesion on MRI), and to a lesser extent dependent on biopsy technique. There is no clear consensus on the optimal targeting approach. The choice of technique depends on local experience and availability of equipment, individual patient characteristics, and onsite cost-benefit analysis. Innovations in imaging techniques and software-based algorithms may lead to further improvements in this field.

An assessment of wetland management scenarios: the case of Zazari–Cheimaditida (Greece)

2005 ◽  
Vol 5 (6) ◽  
pp. 115-123 ◽  
Author(s):  
A. Psychoudakis ◽  
A. Ragkos ◽  
M. Seferlis
Keyword(s):  
Social Impact ◽  
Management Practices ◽  
Cost Benefit Analysis ◽  
Wetland Management ◽  
Stakeholder Analysis ◽  
Cost Benefit ◽  
Holistic Approach ◽  
Management Scenarios ◽  
Wetland Functions ◽  
Wetland Drainage

This study suggests an integrated framework for the assessment of wetland management scenarios, based on a holistic approach of wetland ecosystems. All costs and benefits of management scenarios are estimated in terms of the value of wetland functions, which are indirectly valuated with a Contingent Valuation of goods and services they provide. The social impact of introducing the scenarios is also investigated with a stakeholder analysis, based on a survey. Scenario plausibility and acceptability are examined based on the results of the stakeholder analysis; on the other hand, the assessment of the scenarios, using cost-benefit analysis and multi-criteria analysis, provides quantitative performance indicators adequate to incorporate uncertainties and mutable policy objectives. This framework is applied to assess three management scenarios for a Greek wetland. The results indicate that the continuation of existing management practices is the most efficient alternative unless interventions for the restoration of wetland functions are conservatively budgeted, while a wetland drainage scenario performs poorly both in terms of economic efficiency and social impact.

Real-Time Performance of the PLUM Earthquake Early Warning Method during the 2019 M 6.4 and 7.1 Ridgecrest, California, Earthquakes

2020 ◽  
Vol 110 (4) ◽  
pp. 1887-1903 ◽  
Author(s):  
Sarah E. Minson ◽  
Jessie K. Saunders ◽  
Julian J. Bunn ◽  
Elizabeth S. Cochran ◽  
Annemarie S. Baltay ◽  
...  
Keyword(s):  
Real Time ◽  
Early Warning ◽  
Cost Benefit Analysis ◽  
Protective Action ◽  
Cost Benefit ◽  
Earthquake Early Warning ◽  
Data Availability ◽  
High Data ◽  
Trade Offs ◽  
Warning Time

ABSTRACT We evaluate the timeliness and accuracy of ground-motion-based earthquake early warning (EEW) during the July 2019 M 6.4 and 7.1 Ridgecrest earthquakes. In 2018, we began retrospective and internal real-time testing of the propagation of local undamped motion (PLUM) method for earthquake warning in California, Oregon, and Washington, with the potential that PLUM might one day be included in the ShakeAlert EEW system. A real-time version of PLUM was running on one of the ShakeAlert EEW system’s development servers at the time of the 2019 Ridgecrest sequence, allowing us to evaluate the timeliness and accuracy of PLUM’s warnings for the M 6.4 and 7.1 mainshocks in real time with the actual data availability and latencies of the operational ShakeAlert EEW system. The latter is especially important because high-data latencies during the M 7.1 earthquake degraded ShakeAlert’s performance. PLUM proved to be largely immune to these latencies. In this article, we present a retrospective analysis of PLUM performance and explore three potential regional alerting strategies ranging from spatially large regions (counties), to moderate-size regions (National Weather Service public forecast zones), to high-spatial specificity (50 km regular geographic grid). PLUM generated initial shaking forecasts for the two mainshocks 5 and 6 s after their respective origin times, and faster than the ShakeAlert system’s first alerts. PLUM was also able to accurately forecast shaking across southern California for all three alerting strategies studied. As would be expected, a cost-benefit analysis of each approach illustrates trade-offs between increasing warning time and minimizing the area receiving unneeded alerts. Choosing an optimal alerting strategy requires knowledge of users’ false alarm tolerance and minimum required warning time for taking protective action, as well as the time required to distribute alerts to users.

scholarly journals Public libraries, arts and cultural policy in the UK

2019 ◽  
Vol 40 (8/9) ◽  
pp. 570-582
Author(s):  
Richard Fletcher
Keyword(s):  
Cultural Policy ◽  
Public Libraries ◽  
Cost Benefit Analysis ◽  
Local Level ◽  
Public Funding ◽  
Cost Benefit ◽  
Holistic Approach ◽  
Content Type ◽  
The Arts ◽  
The Uk

Purpose Public libraries in the UK are increasingly expected to provide arts activities and events as part of their usual operations. The purpose of this paper is to summarise recent policy trends in this direction from both the perspective of libraries’ and the arts sector. A touring theatre project aimed at children and families is discussed in further detail to examine some of the outcomes of these policies. Design/methodology/approach The paper will present a brief history of policy developments and debate in this area. Mixed method findings from the research element of “Among Ideal Friends” will be discussed, having used surveys and interviews with audiences and librarians, geodemographic profiling, box office records and library card data. Findings Public funding across both libraries and the arts has decreased at a national and local level, though both sectors are encouraged to work together to share expertise and community knowledge. Research limitations/implications The primary funding for the project was an arts funding body. While a holistic approach to evaluation was taken, this limited any specific focus that might have been given to educational outcomes or cost-benefit analysis compared to other interventions. Practical implications Public libraries can see the results and challenges of a successful regional touring theatre project for consideration in their own activity planning, especially those related to families and younger users. Social implications Libraries and Arts organisations have different priorities in regards to these areas. Though co-operative, the situation is not without tension. The topic is illustrative of some wider debates around cultural value, everyday participation and cultural democracy. Originality/value This paper offers a timely discussion of cultural policy in relation to libraries, e.g. The Society of Chief Librarians “Universal Cultural Offer” (October 2017).

Integrated real-time control for a sequencing batch reactor plant and a combined sewer system

2005 ◽  
Vol 52 (5) ◽  
pp. 179-186 ◽  
Author(s):  
J. Wiese ◽  
J. Simon ◽  
T.G. Schmitt
Keyword(s):  
Real Time ◽  
Sequencing Batch Reactor ◽  
Cost Benefit Analysis ◽  
Batch Reactor ◽  
Cost Benefit ◽  
Full Scale ◽  
Real Time Control ◽  
Time Control ◽  
First Results ◽  
Almost All

Integrated real-time control (RTC) concepts, which are trying to operate drainage systems and WWTPs depending on the current capacities of both systems, are becoming more and more important. While almost all publications in this field have been concentrating on continuous flow systems, this paper will present a project which has been initiated to realise an integrated RTC strategy for a Sequencing Batch Reactor (SBR) plant in simulation as well as in full-scale. The results of the simulation are that SBR plants can handle high hydraulic loads. The cost–benefit analysis shows that an integrated operation is reasonable concerning environmental and economic aspects. In order to verify the simulation results, full-scale operation has been started in January 2004. The first results seem to confirm the results of the simulation study.

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