Significant Time Reduction and Cost Savings Realized Through the Use of Wireline Deployed Milling Services, to Enlarge a Tubing Hanger

2020 ◽  
Author(s):  
Alessandro Mangione ◽  
Elpidio Gravante ◽  
Giuliano Sinibaldi ◽  
Adriano Cianci ◽  
Gianluigi Sala ◽  
...  
Keyword(s):  
Cost Savings ◽  
Significant Time ◽  
Time Reduction ◽  
Tubing Hanger

The Evolution of Subsea Wells Plug and Abandon by the Use of Intervention Vessel

2021 ◽  
Author(s):  
Donatella Stocchi ◽  
Giacomo Zinzani ◽  
Andrea Lazzari ◽  
Giuseppe Leo ◽  
Paolo Giovanni Pasquali ◽  
...  
Keyword(s):  
Deep Water ◽  
Cost Reduction ◽  
Cost Savings ◽  
Minimum Cost ◽  
International Standards ◽  
Significant Time ◽  
Operation Sequence ◽  
Time Reduction

Abstract During the last years, the total number of subsea wells considerably increased thanks to growing investments in the development of deep and ultra-deep water fields. At the end of their producing life, all these wells will need to be decommissioned and permanently plugged and abandoned, so the demand for technologies that will allow to fulfil this task in the respect of the regulations and at the minimum cost gained a lot of momentum. This paper describes a permanent P&A strategy of subsea wells to be carried out with Well Intervention vessel. The study first goes through the operation sequence and available technologies, defining an abandonment approach which is in line with international standards. Identified strategy results into a significant time and cost reduction comparing with traditional subsea wells decommissioning works performed by a floater rig, even maintaining the same level of safety and effectiveness. The study shows that the overall time reduction estimated by using an intervention vessel ranges from 40 to 55%, compared to a conventional rig-based approach, leading the wells abandonment expenditure savings up to 70%. For all those wells where the implementation of an intervention vessel is not guaranteed, there is still room to get time and cost savings of about 5-15% by combining the same riserless technologies with a conventional floater rig.

Particle Swarm Optimization Method for Optimal Prioritization of Pavement Sections for Maintenance and Rehabilitation Activities

2013 ◽  
Vol 343 ◽  
pp. 43-49 ◽  
Author(s):  
Jia Ruey Chang
Keyword(s):  
Particle Swarm Optimization ◽  
Standard Deviation ◽  
Particle Swarm ◽  
Cost Savings ◽  
Optimization Method ◽  
Alternative Solution ◽  
Swarm Optimization ◽  
Pavement Condition ◽  
Significant Time ◽  
Maintenance And Rehabilitation

Optimal prioritization of maintenance and rehabilitation (M&R) activities for pavement sections can enable significant time and cost-savings. In this study, we used the particle swarm optimization (PSO) method to achieve optimal prioritization of 135 pavement sections based on eight pavement condition parameters. The parameters included standard deviation (SD) for smoothness, rutting, deflections, cracking, pothole, bleeding, patching, and shoving. SD for smoothness, rutting, and deflections were inspected using instruments, while cracking, pothole, bleeding, patching, and shoving were surveyed visually. The PSO method was used to quickly calculate the synthetic pavement condition for each pavement section and then obtain the optimal prioritization of pavement sections. With this approach, pavement engineers are able to efficiently perform appropriate and timely M&R activities for pavement sections, according to their priority. This study provides an alternative solution to current approaches for prioritization of pavement sections.

A SIMPLE SUBSEA COMPLETION ON A NEW HYBRID MUDLINE SUSPENSION SYSTEM

1991 ◽  
Vol 31 (1) ◽  
pp. 391
Author(s):  
C. A. Bottomley
Keyword(s):  
Cost Savings ◽  
Suspension System ◽  
Tubing Hanger

A new subsea completion system has been designed to combine conventional mudline installation of the 30 inch and 20 inch casings, with a new 13⅝ inch mudline housing, new 13⅝ ft inch nominal tubing hanger and seal flange. The 13⅜ inch mudline housing features external running threads and replaces the conventional 13⅜ inch casing hanger, the 13 inch tie back adapter and tubing spool. The new tubing hanger features production annulus access through a vertical bore in the hanger body. The main advantages include increased safety due to decreased diver-assisted operations and cost savings due to easier installation of the system compared to a conventional subsea system.

Application of an image management system in microscopy

1992 ◽  
Vol 50 (2) ◽  
pp. 1052-1053
Author(s):  
Richard S. Chemock
Keyword(s):  
Data Storage ◽  
Cost Savings ◽  
Image Data ◽  
Analytical Techniques ◽  
Operational Mode ◽  
Fine Grained ◽  
Image Recording ◽  
Primary Output ◽  
Capacity Data ◽  
Image Management System

One of the most common tasks in a typical analysis lab is the recording of images. Many analytical techniques (TEM, SEM, and metallography for example) produce images as their primary output. Until recently, the most common method of recording images was by using film. Current PS/2R systems offer very large capacity data storage devices and high resolution displays, making it practical to work with analytical images on PS/2s, thereby sidestepping the traditional film and darkroom steps. This change in operational mode offers many benefits: cost savings, throughput, archiving and searching capabilities as well as direct incorporation of the image data into reports.The conventional way to record images involves film, either sheet film (with its associated wet chemistry) for TEM or PolaroidR film for SEM and light microscopy. Although film is inconvenient, it does have the highest quality of all available image recording techniques. The fine grained film used for TEM has a resolution that would exceed a 4096x4096x16 bit digital image.

Exploration-Stage Implementation Variation

2014 ◽  
Vol 222 (1) ◽  
pp. 37-48 ◽  
Author(s):  
Stephanie Romney ◽  
Nathaniel Israel ◽  
Danijela Zlatevski
Keyword(s):  
Parent Training ◽  
Average Cost ◽  
Cost Savings ◽  
Training Group ◽  
Group Differences ◽  
Triple P ◽  
Community Based ◽  
Parent Training Program ◽  
A Site ◽  
The Cost

The present study examines the effect of agency-level implementation variation on the cost-effectiveness of an evidence-based parent training program (Positive Parenting Program: “Triple P”). Staff from six community-based agencies participated in a five-day training to prepare them to deliver a 12-week Triple P parent training group to caregivers. Prior to the training, administrators and staff from four of the agencies completed a site readiness process intended to prepare them for the implementation demands of successfully delivering the group, while the other two agencies did not complete the process. Following the delivery of each agency’s first Triple P group, the graduation rate and average cost per class graduate were calculated. The average cost-per-graduate was over seven times higher for the two agencies that had not completed the readiness process than for the four completing agencies ($7,811 vs. $1,052). The contrast in costs was due to high participant attrition in the Triple P groups delivered by the two agencies that did not complete the readiness process. The odds of Triple P participants graduating were 12.2 times greater for those in groups run by sites that had completed the readiness process. This differential attrition was not accounted for by between-group differences in participant characteristics at pretest. While the natural design of this study limits the ability to empirically test all alternative explanations, these findings indicate a striking cost savings for sites completing the readiness process and support the thoughtful application of readiness procedures in the early stages of an implementation initiative.

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