The effect of mercury contaminants in major gas developments

2010 ◽  
Vol 50 (2) ◽  
pp. 740
Author(s):  
Malcolm Henderson ◽  
Kevin Hansen
Keyword(s):  
Environmental Safety ◽  
Gas Production ◽  
Concept Development ◽  
Lessons Learned ◽  
Operational Experience ◽  
Well Testing ◽  
Gas Streams ◽  
Development Phases ◽  
The Impact ◽  
Mercury Production

Over the past ten years the region has witnessed the unforeseen presence of mercury during gas production which has affected projects not only in southeast Asia but more recently in Australian waters. This has caused major operational challenges and has often involved costly production impairment, loss of condensate sales value and major brownfield modifications. Today–s awareness of mercury has seen a new vigilance in well testing programmes intended to address the identification of mercury in gas streams during the early appraisal and concept development phases of an asset lifecycle. This paper looks at the ways in which operating companies have resolved the issue of unforeseen mercury production to date, and the operational experience and lessons learned. The paper describes some of the fundamental testing programmes as well as the available technologies for treatment and removal of mercury from production and effluent streams. It also identifies the impact of mercury on the design and operation of specific parts of the process as well as the overall impact on facility topsides. The impact of mercury on a development is shown to be manageable and least costly where identified and addressed during the conceptual stage of a project development. Technical, environmental, safety and regulatory issues associated with mercury can be tackled, minimising risk of production deferment, and the costs incurred can be quantified and incorporated into economic models.

Implementation of a new inlet protection system into HEMS fleet

2020 ◽  
Vol 92 (1) ◽  
pp. 67-79
Author(s):  
Bartosz Stanisław Przybyła ◽  
Radoslaw Przysowa ◽  
Zbigniew Zapałowicz
Keyword(s):  
Health Management ◽  
Particle Separation ◽  
Lessons Learned ◽  
Remaining Useful Life ◽  
Operational Experience ◽  
Content Type ◽  
Useful Life ◽  
The Impact ◽  
Dust Ingestion ◽  
Selection Of

Purpose EC-135P2+ helicopters operated by Polish Medical Air Rescue are highly exposed to environmental particles entering engines when performing helicopter emergency medical services. This paper aims to assess the effectiveness of inlet barrier filters installed to protect the engines, including their impact on maintenance. Design/methodology/approach The organisation adopted a comprehensive set of measures to predict and limit the impact of dust ingestion including visual inspections, health management and engine trend monitoring based on ground power checks’ (GPC) results. Three alternative particle separation solutions were considered. Finally, helicopter inlets were modified to allow the selected filter system to be installed, which reduced the number of particles ingested by the engine and prevented from premature overhauls. Findings The analyses carried out enabled not only the selection of the optimal filtration solution and its seamless implementation into the fleet but also confirmed its efficiency. After installing the filters, engines’ lifetime is extended from 500 to 4,500 flight hours while operating costs and the number of maintenance tasks was reduced significantly. Originality/value Lessons learned from operational experience show that a well-matched particle separation system can mitigate accelerated engine deterioration even if the platform is continuously exposed to environmental particles. The remaining useful life of engines can be predicted using performance models and data from GPC.

Brazil Subsea Processing & Boosting Technologies Yard: More Than 20 Years of Lessons Learned

2021 ◽  
Author(s):  
Marcello Augustus Ramos Roberto ◽  
Herbert Prince Koelln ◽  
Rodrigo Iunes De Rezende
Keyword(s):  
Oil And Gas ◽  
Water Injection ◽  
Gas Production ◽  
Lessons Learned ◽  
Operational Experience ◽  
Oil And Gas Production ◽  
Disruptive Technologies ◽  
Electrical Submersible Pumps ◽  
Offshore Oil And Gas ◽  
Offshore Oil

Abstract Over the last 20 years Brazil has been the stage where subsea processing and boosting (P&B) technology has supported and pushed the offshore oil and gas production to overcome its challenges and maximize field production and recovery factor. Subsea Oil-Water and Gas-Liquid Separation Systems, Multiphase Pumps, Electrical Submersible Pumps, Raw Water Injection Systems, and other innovative, enabler, optimizer or even disruptive technologies have been developing and applying in Brazil's fields to increase the NPV of projects and make feasible long tiebacks scenarios. This paper will present a retrospective of the most significant P&B systems developed and deployed in Brazil's fields, their operational experience, lessons learned, the next generation under development to surpass Pre-Salt and brown fields challenges and some initiatives to maximize these technologies applications.

Lessons Learned: How to Produce More Hydrocarbons from Blowout Wells

2016 ◽  
Author(s):  
Xueqing Tang ◽  
Lirong Dou ◽  
Ruifeng Wang
Keyword(s):  
Gas Production ◽  
Lessons Learned ◽  
Oil Well ◽  
Fractured Reservoir ◽  
Naturally Fractured Reservoir ◽  
Gas Well ◽  
Hydrocarbon Recovery ◽  
Water Breakthrough ◽  
Naturally Fractured ◽  
The Impact

ABSTRACT Deep formation damage caused by killing fluid frequently occurs in blowout wells and clean-up operations may result in early water breakthrough and less hydrocarbon recovery. This paper presents three innovative practices applied in oil and gas wells that suffered blowout accidents for more hydrocarbon recovery. i.e.: For a blowout oil well, N2 huff and puff process can be applied for clean-up around the wellbore. During the first several cycles, the well got clean-up and output and wellhead pressure increased.For a blowout gas well in a massive gas pool, controllable drawdown pressure is recommended due to its updip location. The drawdown pressure should be met for both clean-up and minimum water coning. When water breakthrough appears, then neighboring wells at lower locations produce at larger drawdown pressure than that of blown-out well to minimize the impact of water influx on production of blowout well.For a blowout gas well in a faulted, naturally fractured reservoir, drawdown pressure should be maintained at the level of no liquid-loading in the wellbore. Gas and water co-production should be kept stable. Any shut-in of the well must be avoided. These methods have been successfully utilized in more than 40 wells for over 50 years. The three typical field examples are illustrated. One of them is an oil well in sandstone reservoir, with double oil rate as the nearby wells. The rest are a gas well in massive carbonate pool with bottom water, with the most prolific gas production in the field, and a gas well in a naturally fractured reservoir, with Gp of over 180 BCF.

Characteristics of Physician Relocation Following Hurricane Katrina

2009 ◽  
Vol 95 (1) ◽  
pp. 6-12
Author(s):  
Kusuma Madamala ◽  
Claudia R. Campbell ◽  
Edbert B. Hsu ◽  
Yu-Hsiang Hsieh ◽  
James James
Keyword(s):  
Hurricane Katrina ◽  
Gulf Coast ◽  
General Medicine ◽  
The United States ◽  
Lessons Learned ◽  
Bivariate Analysis ◽  
Fisher Exact Test ◽  
Exact Test ◽  
Factors Associated ◽  
The Impact

ABSTRACT Introduction: On Aug. 29, 2005, Hurricane Katrina made landfall along the Gulf Coast of the United States, resulting in the evacuation of more than 1.5 million people, including nearly 6000 physicians. This article examines the relocation patterns of physicians following the storm, determines the impact that the disaster had on their lives and practices, and identifies lessons learned. Methods: An Internet-based survey was conducted among licensed physicians reporting addresses within Federal Emergency Management Agency-designated disaster zones in Louisiana and Mississippi. Descriptive data analysis was used to describe respondent characteristics. Multivariate logistic regression was performed to identify the factors associated with physician nonreturn to original practice. For those remaining relocated out of state, bivariate analysis with x2 or Fisher exact test was used to determine factors associated with plans to return to original practice. Results: A total of 312 eligible responses were collected. Among disaster zone respondents, 85.6 percent lived in Louisiana and 14.4 percent resided in Mississippi before the hurricane struck. By spring 2006, 75.6 percent (n = 236) of the respondents had returned to their original homes, whereas 24.4 percent (n = 76) remained displaced. Factors associated with nonreturn to original employment included family or general medicine practice (OR 0.42, 95 percent CI 0.17–1.04; P = .059) and severe or complete damage to the workplace (OR 0.24, 95 percent CI 0.13–0.42; P < .001). Conclusions: A sizeable proportion of physicians remain displaced after Hurricane Katrina, along with a lasting decrease in the number of physicians serving in the areas affected by the disaster. Programs designed to address identified physician needs in the aftermath of the storm may give confidence to displaced physicians to return.

Directions of Accounting Environmental Factors for Forecasting Formation of Agroecosystems

2020 ◽  
pp. 31-35
Author(s):  
L.Z. Khalishkhova ◽  
◽  
A. Kh. Temrokova ◽  
I.R. Guchapsheva ◽  
K.A. Bogаtyreva ◽  
...  
Keyword(s):  
Sustainable Development ◽  
Comparative Analysis ◽  
Environmental Factors ◽  
Environmental Safety ◽  
Logical Analysis ◽  
Management Decisions ◽  
The Sustainable Development ◽  
The Impact

Ensuring the sustainable development of agroecosystems requires research into the justification of the impact of environmental factors on the formation of territorial agroecosystems and identifies ways to take them into account in order to justify management decisions and ensure environmental safety. The main goal of the research within the article is to identify the most significant environmental factors in predicting the formation of agroecosystems. Provisions are devoted to the study of the laws governing the functioning of agroecosystems in order to increase their stability. The methods of comparative analysis, generalization, abstraction, logical analysis are applied. A number of provisions are formulated regarding ways to account for the influence of factors on the formation of key elements of agroecosystems.

Optimizing electronic capture of patient-reported outcome measures in oncology clinical trials: lessons learned from a qualitative study

2020 ◽  
Vol 9 (17) ◽  
pp. 1195-1204
Author(s):  
Florence D Mowlem ◽  
Brad Sanderson ◽  
Jill V Platko ◽  
Bill Byrom
Keyword(s):  
Patient Reported Outcome Measures ◽  
Patient Reported Outcome ◽  
Lessons Learned ◽  
Structured Interviews ◽  
Patient Reported ◽  
Oncology Clinical Trials ◽  
Anticancer Treatment ◽  
Fit For Purpose ◽  
The Impact ◽  
Electronic Implementation

Aim: To understand the impact of anticancer treatment on oncology patients’ ability to use electronic solutions for completing patient-reported outcomes (ePRO). Materials & methods: Semi-structured interviews were conducted with seven individuals who had experienced a cancer diagnosis and treatment. Results: Participants reported that the following would impact the ability to interact with an ePRO solution: peripheral neuropathy of the hands (4/7), fatigue and/or concentration and memory issues (6/7), where they are in a treatment cycle (5/7). Approaches to improve usability included: larger, well-spaced buttons to deal with finger numbness, the ability to pause a survey and complete at a later point and presenting the recall period with every question to reduce reliance on memory. Conclusion: Symptoms associated with cancers and anticancer treatments can impact the use of technologies. The recommendations for optimizing the electronic implementation of patient-reported outcome instruments in this population provides the potential to improve data quality in oncology trials and places patient needs at the forefront to ensure ‘fit-for-purpose’ solutions.

Paper2Wire – A Case Study of User-Centred Development of Machine Learning Tools for UX Designers

i-com ◽  
2021 ◽  
Vol 20 (1) ◽  
pp. 19-32
Author(s):  
Daniel Buschek ◽  
Charlotte Anlauff ◽  
Florian Lachner
Keyword(s):  
Machine Learning ◽  
Development Process ◽  
User Study ◽  
Concept Development ◽  
Lessons Learned ◽  
Design Tool ◽  
Learning Tools ◽  
Interface Elements ◽  
Industry Partner

Abstract This paper reflects on a case study of a user-centred concept development process for a Machine Learning (ML) based design tool, conducted at an industry partner. The resulting concept uses ML to match graphical user interface elements in sketches on paper to their digital counterparts to create consistent wireframes. A user study (N=20) with a working prototype shows that this concept is preferred by designers, compared to the previous manual procedure. Reflecting on our process and findings we discuss lessons learned for developing ML tools that respect practitioners’ needs and practices.

scholarly journals The Impact of COVID-19 Related Lockdown on the Prevalence of Spousal Violence Against Women in Kurdistan Region of Iraq

2021 ◽  
pp. 088626052199792
Author(s):  
Kazhan I. Mahmood ◽  
Sherzad A. Shabu ◽  
Karwan M. M-Amen ◽  
Salar S. Hussain ◽  
Diana A. Kako ◽  
...  
Keyword(s):  
Violence Against Women ◽  
Emotional Abuse ◽  
Physical Violence ◽  
Lessons Learned ◽  
Spousal Violence ◽  
Kurdistan Region ◽  
Gender Based Violence ◽  
Effective Prevention ◽  
Gender Based ◽  
The Impact

There is increasing concern about the impact of the COVID-19 pandemic and the lockdown’s social and economic consequences on gender-based violence. This study aimed to assess the impact of the COVID-19 pandemic on gender-based violence by comparing the prevalence of spousal violence against women before and during the COVID-19 related lockdown periods. This study was conducted in the Kurdistan Region of Iraq using a self-administered online questionnaire survey after the COVID-19 lockdown period in June 2020. Data were collected from a sample of 346 married women about the occurrence, frequency, and forms of spousal violence before and during the lockdown period. Significant increases in violence were observed from the pre-lockdown period to the lockdown period for any violence (32.1% to 38.7%, p = .001), emotional abuse (29.5% to 35.0%, p = .005), and physical violence (12.7% to 17.6%, p = .002). Regarding emotional abuse, humiliation (24.6% to 28.3%, p = .041) and scaring or intimidation (14.2% to 21.4%, p < .001) significantly increased during the lockdown. For physical violence, twisting the arm or pulling hair (9.0% to 13.0%, p = .004) and hitting (5.2% to 9.2%, p = .003) significantly increased during the lockdown. Forcing to have sexual intercourse also significantly increased during lockdown (6.6% to 9.5%., p = .021). The concerned authorities and women’s rights organizations should collaborate to enhance the prevention of violence against women. An effective prevention strategy should emphasize recognizing and acknowledging the extent of the problem, raising awareness about the problem and the available resources to address it, and ensuring social and economic stability. Lessons learned about the increased prevalence of spousal violence against women during the COVID-19 pandemic and the need to adopt appropriate strategies to prevent and address it will be valuable for similar future crises.

Evaluating and Motivating Activation in Long Term Care: Lessons From a Pilot Study

2021 ◽  
Vol 10 (1) ◽  
pp. 42-46
Author(s):  
J. Jbilou ◽  
A. El Bouazaoui ◽  
B. Zhang ◽  
J.L. Henry ◽  
L McDonald ◽  
...  
Keyword(s):  
Long Term Care ◽  
Driving Simulator ◽  
Care Home ◽  
Lessons Learned ◽  
Term Care ◽  
Care Facilities ◽  
Technological Intervention ◽  
The Impact ◽  
Research Recommendations

Older adults living in long-term care facilities typically receive insufficient exercise and have long periods of the day when they are not doing anything other than sitting or lying down, watching television, or ruminating (Wilkinson et al., 2017). We developed an intervention called the Experiential Centivizer, which provides residents with opportunities to use a driving simulator, watch world travel videos, and engage in exercise. We assessed the impact of the intervention on residents of a long-term care home in Fredericton, NB, Canada. In this paper, we report on the results observed and highlight the lessons learned from implementing a technological intervention within a long-term care setting. Practical and research recommendations are also discussed to facilitate future intervention implementation in long-term care.

scholarly journals Enhancing Behavioral Health Competencies for Senior Center Staff: Lessons Learned From Workforce Training Efforts

2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 1-1
Author(s):  
Bronwyn Keefe ◽  
Jennifer Tripken
Keyword(s):  
Mental Health ◽  
Older Adults ◽  
Behavioral Health ◽  
Lessons Learned ◽  
Organizational Level ◽  
Senior Center ◽  
Senior Centers ◽  
Knowledge And Skills ◽  
Center Staff ◽  
The Impact

Abstract Increases in the numbers of older adults with mental health and substance use concerns compel us to identify best practices in training to address these issues. Senior Centers are an ideal location for behavioral health education programs as they are the go-to place for many older adults. This session will describe a program funded by The Retirement Research Foundation and offered in collaboration with Center for Aging and Disability Education and Research at Boston University and NCOA to increase senior center staff knowledge and skills. Approximately 250 senior center staff in Illinois, Florida, and Wisconsin completed an online certificate in Behavioral Health and Aging. Results show that 100% of respondents felt that the training was useful for their job; 93% felt that they will be a more effective worker as a result of the training; and 97% felt that the information they learned in the training will make a difference with the people they serve. We held key informant interviews to assess the impact of training and participants stated that their knowledge, skills, and behaviors were influenced by the program. At the organizational level, leaders reported new programming related to behavioral health and revised practices and protocols. This presentation will cover: (1) the extent to which training participants mastered the competencies needed for effective practice; (2) knowledge and skills gained from the training program; (3) Senior Centers’ capacity to identify and refer older adults to mental health services; and (4) organizational changes related to behavioral health programming with older adults.

Sign in / Sign up

Export Citation Format

Share Document