First Ever Offshore Deployment of an Inflatable Packer Anchoring System for Rigless Installation of an Insertable Progressive Cavity Pump: A Case Study

2021 ◽  
Author(s):  
Alejandro Osorio ◽  
Francis Ford
Keyword(s):  
Low Cost ◽  
Cost Effective ◽  
Alternative Methods ◽  
Axial Loads ◽  
Slip Mechanism ◽  
Case Study Analysis ◽  
Anchoring System ◽  
One Year ◽  
Production Tubing

Abstract An offshore well located in Indonesia required rigless installation of an insertable progressive cavity pump (I-PCP) as a cost-effective solution to restore production while eliminating the need to retrieve the upper completion for extensive maintenance. The well had been previously completed with a conventional progressive cavity pump (PCP) as an integral part of the completion and was placed offline for approximately one year due to mechanical failure of downhole components. Typical I-PCP anchoring methods were not feasible alternatives for this application. A pump-seating nipple (PSN) insertable seal stack could not be used due to the lack of a PSN at the required I-PCP setting depth, and a mechanical J-slot anchoring device could not be deployed because rod conveyance from an offshore barge is subject to constant heave, which results in fluctuating axial loads and rod position, which would pose the risk of prematurely activating a mechanical J-slot anchor during deployment. An inflatable packer anchoring system was selected as a solution to the operational challenges encountered in this application. The system comprises inflatable packer technology, a hydraulically-actuated anchoring slip mechanism, seal cups, and a shearable intake sub. Conveyed on sucker rods, the system provides the required pressure competence to confirm tubing integrity and enable a complete hydraulic setting sequence. The first ever offshore installation of this system proved its optimal functionality by successfully anchoring an I-PCP inside 3-1/2" production tubing riglessly from an offshore barge. The system was set by applying pressure via the tubing-rod annulus, and the well was immediately placed into production. After being shut-in for more than one year, this unique solution provided the well operator with a safe and low-cost alternative to reestablish production while eliminating the need for a workover rig. The objective of this paper is to provide a case study analysis of the first offshore deployment of this technology, discuss its potential for optimizing PCP/I-PCP completion designs, and explain the economic and operational benefits of associated rigless well intervention operations in comparison to current alternative methods.

Use of an optical surface scanner in assessment of outcome following rhinoplasty surgery

2008 ◽  
Vol 122 (9) ◽  
pp. 972-977 ◽  
Author(s):  
H Chau ◽  
R Dasgupta ◽  
V Sauret ◽  
G Kenyon
Keyword(s):  
Surgical Intervention ◽  
University Hospital ◽  
Facial Features ◽  
Optical Surface ◽  
Case Study Analysis ◽  
The Future ◽  
University College London ◽  
One Year ◽  
The Right

AbstractObjective:To demonstrate the use of an optical surface scanner, with associated software, in the assessment of rhinoplasty patients, and to discuss the possible clinical applications of this technology in the future.Design:Case study analysis of pre- and post-operative scans of a patient undergoing septorhinoplasty at Whipps Cross University Hospital, London, UK.Subject:A 21-year-old man undergoing septorhinoplasty underwent pre-operative optical surface scanning of his face. The scans were repeated at one week and one year post-operatively. Software developed at University College London was then used to analyse the scans.Results:The scans clearly showed that the man's dorsal hump had been well reduced and the nose straightened, with a resulting 1600 mm3 gain on the right side and a 1000 mm3 loss on the left side of the nose. Tip projection had also been achieved.Conclusion:This technique allowed objective quantification of facial features and analysis of change. It may well prove useful in the future in predicting change following surgical intervention.

PQ Metrics Implementation on Low Cost Smart Metering Platforms. A Case Study Analysis

2018 ◽  
Author(s):  
Giovanni Artale ◽  
Antonio Cataliotti ◽  
Valentina Cosentino ◽  
Salvatore Guaiana ◽  
Dario Di Cara ◽  
...  
Keyword(s):  
Low Cost ◽  
Smart Metering ◽  
Study Analysis ◽  
Case Study Analysis

scholarly journals Learning from Past Policy: Assessing United States Foreign Policy over Indonesia in Resolving the 1999 East Timor Crisis

2021 ◽  
Vol 23 (1) ◽  
pp. 1
Author(s):  
Sigit S. Nugroho
Keyword(s):  
United States ◽  
Foreign Policy ◽  
Low Cost ◽  
The United States ◽  
East Timor ◽  
United States Foreign Policy ◽  
Case Study Analysis ◽  
High Degree ◽  
The U.S

Assessing the output of past foreign policy is instrumental for any country to learn policy-relevant insights, to appreciate its experience, and to improve its future conduct. To glean such insights, this article borrows Baldwin’s framework in assessing the success and failure in foreign policy. Using a case study analysis, it assesses the United States’ (U.S.) influence attempt towards Indonesia to resolve the 1999 East Timor humanitarian crisis. President Clinton’s decision to undergo an influence attempt primarily aimed to change Indonesia’s policy while gaining support from U.S. allies in the process. The article finds that Clinton’s decision was a highly successful attempt. This finding is based on several factors: (1) the attempt effectively attained the intended primary and secondary goals at a considerably high degree; (2) it was conducted at a considerably low cost for the U.S.; (3) it inflicted a high cost towards Indonesia; (4) the increase in Clinton’s stake strengthened the U.S. resolve to pursue the influence attempt; and (5) Clinton had successfully overcome the difficult undertaking as Indonesia possessed higher stake over East Timor. These findings provide some lessons for both U.S. and Indonesian foreign policymakers to chart future relations for the two nations.

Combatting the “Silo Effect” in the Online Classroom

2021 ◽  
pp. 149-174
Author(s):  
James J. Barney
Keyword(s):  
Homeland Security ◽  
Low Cost ◽  
Teaching Experience ◽  
Role Playing ◽  
Discussion Board ◽  
Discussion Boards ◽  
High Stakes ◽  
Writing Assignments ◽  
Case Study Analysis

This case study explores the revision process and experience learned by teaching 12 sections of an asynchronous online graduate Homeland Security Law course over a two-year period from 2018 to 2020. The chapter charts the transition of the course from a traditional format with high-stakes episodic assessments (midterm, final, and a lengthy research paper) to a discussion board-centric class using curated reading materials, case study analysis, role-playing, structured debates, and the scaffolding of shorter, low-stakes writing assignments predominately completed in the online discussion boards increased both student engagement and satisfaction as reflected by student evaluations and feedback. The chapter further argues that a collection of low-tech, low-cost design and delivery tips derived from the insights provided from scholarship and online teaching experience can create a rich and transparent online learning environment.

scholarly journals One year later: Highlighting the challenges and opportunities in disseminating a breathing-retraining digital behaviour change intervention

2020 ◽  
Vol 6 ◽  
pp. 205520762093644
Author(s):  
Ben Ainsworth ◽  
Anne Bruton ◽  
Mike Thomas ◽  
Lucy Yardley
Keyword(s):  
Behaviour Change ◽  
Large Scale ◽  
Digital Health ◽  
Low Cost ◽  
Controlled Trial ◽  
Cost Effective ◽  
Challenges And Opportunities ◽  
Breathing Retraining ◽  
One Year ◽  
Randomised Controlled

Digital behaviour change interventions can provide effective and cost-effective treatments for a range of health conditions. However, after rigorous evaluation, there still remain challenges to disseminating and implementing evidence-based interventions that can hinder their effectiveness ‘in the real world’. We conducted a large-scale randomised controlled trial of self-guided breathing retraining, which we then disseminated freely as a digital intervention. Here we share our experience of this process after one year, highlighting the opportunities that digital health interventions can offer alongside the challenges that must be addressed in order to harness their effectiveness. Whilst such treatments can support many individuals at extremely low cost, careful dissemination strategies should be proactively planned in order to ensure such opportunities are maximised and interventions remain up to date in a fast-moving digital landscape.

scholarly journals VIRECHEN, LEKHANA BASTI AND ORAL THERAPY AN AYURVEDIC PROTO-COL FOR MANAGEMENT OF UTERINE FIBROID IN AN INFERTILE WOMAN – A CASE REPORT

2020 ◽  
Vol 08 (11) ◽  
pp. 5178-5181
Author(s):  
Balat Gauravkumar R ◽  
Dei L. P.
Keyword(s):  
Uterine Fibroid ◽  
Cost Effective ◽  
Infertile Woman ◽  
Healthy Baby ◽  
Infertile Women ◽  
Clinical Case Study ◽  
Ayurvedic Treatment ◽  
One Year

Background: Infertility is inability to become pregnant for a sexually active couples after one year without using any contraceptives. It causes great distress to many couples. The benign tumor that origi-nate in the uterus it is called a uterine fibroid. The growths are typically benign, or noncancerous. The cause of fibroids is unknown and there are many ways will affect the fertility of woman. Aim & Ob-jective: To understand the disease according to Ayurvedic principles & to evaluate the role of a safer and cost-effective Ayurvedic treatment modality in uterine fibroid in infertile women. Materials and Methods: A clinical case study of uterine fibroid. Patient age 25 years with 2 years active marital life attending the O.P.D. of P.T.S.R. of IPGT & RA, Jamnagar. Patient was treated with Virechana Karma (Purgation) with Trivrut Avaleha with Thripala Kwatha (Decoction), Lekhana Basti (Enema) with Lek-haneya Maha Kashaya for 15 days, Varunadi Kwath (Decoction) 50ml for 8 weeks morning and even-ing after meal Results: There is great reduction to the size of the fibroid and the woman became preg-nant and delivered a healthy baby. Conclusion: Hence it has been concluded that this Ayurvedic proto-col useful the management of uterine fibroid in infertile woman.

scholarly journals A feasibility study of electrical energy generation from municipal solid waste in Iraq: Najaf case study

2020 ◽  
Vol 10 (4) ◽  
pp. 3403
Author(s):  
Othman M. Anssari ◽  
Esam A. Alkaldy ◽  
Naseem Almudhaffar ◽  
Abbas Nasir AlTaee ◽  
Nabeel Salih Ali
Keyword(s):  
Production Cost ◽  
Low Cost ◽  
Electrical Energy ◽  
Simulation Software ◽  
Waste Products ◽  
Electricity Crisis ◽  
Proposed Model ◽  
Key Factor ◽  
One Year

In several developing countries, the electricity crisis obstructs both socio-economic and technological sustainable evolution. Also, it leads to reducing job availability due to shut down several industries or relocate to neighbouring countries to such an issue. A Najaf City is an important holy and tourist city in the middle of Iraq country. Indeed, waste management in An Najaf City needs to be reconsidered to be used as an energy source. In this article, we investigated and listed the waste quantity which produced recently (one year) respect to waste types and types of content. Data collected from the waste products for one year and are used as a key factor to study the feasibility of generating electrical energy from collected MSWs. The proposed model was simulated and tested respect to cost analysis factor of the suggested power plant by Homer pro simulation software. Results were very encouraging and competitive to the current energy production cost based on the production cost of the Kwh prospective among the conventional methods in Iraq. The proposed scenario provide proper and secure waste proposal technique with low-cost.

scholarly journals Combining Parcel Lockers with Staffed Collection and Delivery Points: An Optimization Case Study Using Real Parcel Delivery Data (London, UK)

2021 ◽  
Vol 7 (3) ◽  
pp. 183
Author(s):  
Maren Schnieder ◽  
Chris Hinde ◽  
Andrew West
Keyword(s):  
Net Present Value ◽  
Low Cost ◽  
Service Level ◽  
Home Delivery ◽  
Optimal Number ◽  
Real World Data ◽  
Financial Benefits ◽  
One Year ◽  
Decision Support Method

Delivering parcels to collection and delivery points (CDPs) is often seen as a better option compared with home delivery. However, if the demand is inhomogeneous, either the parcel locker utilization or the service level (i.e., the number of parcels that can be delivered) is low. Either situation would reduce the financial viability. This paper compares two options to increase the utilization, namely: (i) modular lockers (i.e., numbers of lockers adjusted periodically depending on demand) and (ii) combining parcel lockers with staffed CDPs. The latter has the advantage of a low investment cost of staffed CDPs and a low cost per parcel of parcel lockers. Secondly, the paper calculates the optimal number of lockers at a staffed CDP, assuming that all parcels are placed in the staffed CDP if the parcel locker is full. This method was applied to data collected by a parcel delivery company in London. The advantage of using real world data over one year is that it includes seasonal and daily changes in the parcel demand. The decision support method accounts for parcels not being picked up by customers on the delivery day, returned deliveries, and the net present value (NPV) of the investment. This paper shows that having enough lockers for 100% of all parcels compared with 80% doubles the number of required parcel lockers because of the inhomogeneity of the demand. In addition, combining fixed lockers with staffed CDPs offers greater financial benefits compared with modular lockers in this case study.

scholarly journals Characterization of a novel, low-cost, scalable vaporized hydrogen peroxide system for sterilization of N95 respirators and other COVID-19 related personal protective equipment

2020 ◽  
Author(s):  
Nikhil Dave ◽  
Katie Sue Pascavis ◽  
John Patterson ◽  
David Wallace ◽  
Abhik Chowdhury ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Low Cost ◽  
Cost Effective ◽  
Medical Personnel ◽  
Alternative Methods ◽  
Community Members ◽  
Fluid Resistance ◽  
Wide Range ◽  
The Cost ◽  
N95 Respirators

AbstractDue to the virulence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the pathogen responsible for the respiratory disease termed COVID-19, there has been a significant increase in demand for surgical masks and N95 respirators in medical clinics as well as within communities operating during the COVID-19 epidemic. Thus, community members, business owners, and even medical personnel have resorted to alternative methods for sterilizing face coverings and N95 respirators for reuse. While significant work has shown that vaporized hydrogen peroxide (VHP) can be used to sterilize N95 respirators, the cost and installation time for these sterilization systems limit their accessibility. To this end, we have designed and constructed a novel, cost-effective, and scalable VHP system that can be used to sterilize N95 respirators and other face coverings for clinical and community applications. N95 respirators inoculated with P22 bacteriophage showed a greater than 6-log10 reduction in viral load when sterilized in the VHP system for one 60-minute cycle. Further, N95 respirators treated with 20 cycles in this VHP system showed comparable filtration efficiency to untreated N95 respirators in a 50 to 200 nanometer particulate challenge filtration test. While a 23% average increase in water droplet roll-off time was observed for N95 respirators treated with 5 cycles in the sterilization, no breakdown in fluid resistance was detected. These data suggest that our VHP system is effective in sterilizing N95 respirators and other polypropylene masks for reuse. Relating to the present epidemic, deployment of this system reduces the risk of COVID-19 community transmission while conserving monetary resources otherwise spent on the continuous purchase of disposable N95 respirators and other face coverings. In summary, this novel, scientifically validated sterilization system can be easily built at a low cost and implemented in a wide range of settings.

Sign in / Sign up

Export Citation Format

Share Document