Fit-for-Purpose, High-Density, Resilient Cement System for Ultra-HPHT Wells: Case Study in Brunei

2020 ◽  
Author(s):  
Salim Taoutaou ◽  
Maimoon Fayyaz Jaffery ◽  
Bipin Jain ◽  
Essam Abdelhamid ◽  
Cyril Szakolczai ◽  
...  
Keyword(s):  
High Density ◽  
Cement System ◽  
Fit For Purpose

scholarly journals Love in the time of Covid-19: a case-study of the complex laws governing weddings

Legal Studies ◽  
2021 ◽  
pp. 1-17
Author(s):  
Rebecca Probert ◽  
Stephanie Pywell
Keyword(s):  
First Century ◽  
Marriage Law ◽  
England And Wales ◽  
General Law ◽  
The Social ◽  
The Future ◽  
Fit For Purpose ◽  
The Law ◽  
The Impact

Abstract During 2020, weddings were profoundly affected by the Covid-19 pandemic. During periods of lockdown few weddings could take place, and even afterwards restrictions on how they could be celebrated remained. To investigate the impact of such restrictions, we carried out a survey of those whose plans to marry in England and Wales had been affected by Covid-19. The 1,449 responses we received illustrated that the ease and speed with which couples had been able to marry, and sometimes whether they had been able to marry at all, had depended not merely on the national restrictions in place but on their chosen route into marriage. This highlights the complexity and antiquity of marriage law and reinforces the need for reform. The restrictions on weddings taking place also revealed the extent to which couples valued getting married as opposed to having a wedding. Understanding both the social and the legal dimension of weddings is important in informing recommendations as to how the law should be changed in the future, not merely to deal with similar crises but also to ensure that the general law is fit for purpose in the twenty-first century.

High-density 3D point receiver seismic acquisition and processing – a case study from the Sichuan Basin, China

First Break ◽  
2014 ◽  
Vol 32 (1) ◽  
Author(s):  
F. Xiao ◽  
J. Yang ◽  
B. Liang ◽  
M. Zhang ◽  
R. Li ◽  
...  
Keyword(s):  
Sichuan Basin ◽  
High Density ◽  
Seismic Acquisition ◽  
The Sichuan Basin

High density European Rail Traffic Management System (HD-ERTMS) for urban railway nodes: The case study of Rome

2021 ◽  
Vol 17 ◽  
pp. 100232
Author(s):  
Federico Cuppi ◽  
Valeria Vignali ◽  
Claudio Lantieri ◽  
Luca Rapagnà ◽  
Nicola Dimola ◽  
...  
Keyword(s):  
Traffic Management ◽  
Management System ◽  
High Density ◽  
Traffic Management System ◽  
Rail Traffic

Use of Micronized Weighting Agents for High Density Completion Fluids: A Case Study

2021 ◽  
Author(s):  
Sufyan Deshmukh ◽  
Marcelo Dourado Motta ◽  
Sameer Prabhudesai ◽  
Mehul Patil ◽  
Yogesh Kumar ◽  
...  
Keyword(s):  
Environmental Impact ◽  
High Density ◽  
Fluid Loss ◽  
Damage Potential ◽  
Coiled Tubing ◽  
Viscosity Profile ◽  
Invert Emulsion ◽  
Emulsion Fluid ◽  
Minimal Fluid

Abstract A unique invert emulsion fluid (IEF) weighted up with treated micronized weighting agent (MWA) slurries has been developed and successfully implemented in the field as a completion and testing fluid. The utilization of this unique IEF by design allowed the fluid properties to be lower on viscosity and superior suspension characteristics, which allowed for thermally stable fluid and provided excellent downhole hydraulics performance. Much of the earlier development and deployment of this type of IEF was focused on drilling for sections in narrow mud weight and fracture gradient windows, coiled tubing operations, managed pressure drilling, and extended reach wells. Many of these drilling challenges are also encountered in high pressure and high temperature (HTHP) and ultra-deepwater field developments and mature, depleted fields. Early fluid developments focused on designing the fluids chemistry and physics interactions and the optimization of mineralogy of the weighing agent used. There was also some concern on variability of the results seen on the return permeability as well as standard fluid loss experiments. The paper describes the laboratory and field and rigsite data generated while using the MWA in IEFs during completion operations with a client in India. The paper will briefly describe the laboratory work before the application and the associated results observed on the rig site. It will also outline all the challenges which were faced during the execution and mixing of the MWA IEFs. Each separate operation required a high-density reservoir fluid solution above 15.5 ppg [1.85 sg]. Because corrosion, sag potential, and scale were the operator's main concerns, a solids-free brine or other type of weighting agent (for e.g. Calcium Carbonate and/or Tri-Manganese Tetra Oxide) solution was not favored. A high-density IEF designed with MWA allowed us to provide a solution that mitigated against the risks identified in each operation. The thin viscosity profile enabled completion activities to proceed with minimal fluid consumption at surface, reducing the overall environmental impact. The high-density (15.6 ppg [1.86 SG] and 16.2 ppg [1.94 SG]) invert emulsion fluid was designed to minimize sag potential with minimal reservoir damage potential. With a thinner viscosity profile compared to conventional IEFs at equivalent densities, the fluid enabled completion activities with minimal fluid volumes lost over shakers and reduced the environmental impact. The MWA that was used to build the IEF used for drilling and completion fluid enabled maintenance of extremely low-shear rate viscosities when compared to conventional barite-laden fluids. This fluid was used for suspending and abandoning the well in Case Study A, where the reentry and intervention of the well was planned to be after 2 years. After exposure of the fluid in Case Study A, the fluid showed minimum sag after re-entry of the well and the intervention activities were done without any problems. Case Study B showed that the fluid was mixed to the density of 16.2 ppg and was used to perforate and test two different zones. The bottom hole static temperature (BHST) reported were 356 degF (180 degC) for Case Study A and 376 degF (191 degC) for Case Study B respectively. The paper attempts to show the effects of using this alternative weighing agent as a completion fluid instead of a high-density solids-free brine or other solids-laden high-density brines and the associated success, which could be managed if the fluid design is carefully planned.

scholarly journals Psychosocial and Demographic Factors That Compound Alcohol Abuse Amongst Youth: A Case Study of Musina High School

2019 ◽  
Vol 11 (7) ◽  
pp. 69 ◽  
Author(s):  
Frans Koketso Matlakala ◽  
Jabulani Calvin Makhubele ◽  
Prudence Mafa
Keyword(s):  
High School ◽  
Young People ◽  
Alcohol Abuse ◽  
Rural Areas ◽  
Demographic Factors ◽  
High Density ◽  
Design Data ◽  
Alcohol Outlets ◽  
The Social

The risk factors that compound alcohol abuse by young people have significant effects of individuals. The sole purpose of social work is to enhance the social functioning of clients and in most cases, clients have impairments as the result of high density of alcohol outlets, affordability of alcohol, which later give birth to psychosocial challenges. The aim of this study is to describe psychosocial and demographic factors compounding alcohol abuse amongst youth. The study employed quantitative approach and descriptive case study design. Data was collected at Musina High School and 96 learners were sampled using stratified sampling to complete the questionnaire. Data was analysed descriptively with the aid of Statistical Package for the Social Science. The study revealed that psychosocial and environmental factors compound to alcohol abuse amongst youth in Musina High School. The study concludes that the context determines the excessive use of alcohol abuse by youth. Young people especially those who reside in rural areas are exposed to high density of alcohol outlets and they are left without guardianship. Due to lack of guardian or parental involvement they end up indulging in excessive use of alcohol.

High-resolution seismic processing technique with broadband,wide-azimuth, and high-density seismic data - A case study of thin-sand reservoir in eastern China

2021 ◽  
pp. 1-45
Author(s):  
Qin Su ◽  
Huahui Zeng ◽  
Yancan Tian ◽  
HaiLiang Li ◽  
Lei Lyu ◽  
...  
Keyword(s):  
Seismic Data ◽  
Oil And Gas ◽  
Single Point ◽  
Eastern China ◽  
High Density ◽  
Songliao Basin ◽  
Seismic Processing ◽  
Oil And Gas Exploration ◽  
Sand Body

Seismic processing and interpretation techniques provide important tools for the oil and gas exploration of the Songliao Basin in eastern China, which is dominated by terrestrial facies. In the Songliao Basin, a large number of thin-sand reservoirs are widely distributed, which are the primary targets of potential oil and gas exploration and exploitation. An important job of the exploration in the Songliao Basin is to accurately describe the distribution of these thin-sand belts and the sand-body shapes. However, the thickness of these thin-sand reservoirs are generally below the resolution of the conventional seismic processing. Most of the reservoirs are thin-interbeds of sand and mudstones with strong vertical and lateral variations. This makes it difficult to accurately predict the vertical and horizontal distribution of the thin-sand bodies using the conventional seismic processing and interpretation methods. Additionally, these lithologic traps are difficult to identify due to the complex controlling factor and distribution characteristics, and strong concealment. These challenges motivate us to improve the seismic data quality to help delineate the thin-sand reservoirs. In this paper, we use the broadband, wide-azimuth, and high-density integrated seismic exploration technique to help delineate the thin-reservoirs. We first use field single-point excitation and single-point receiver acquisition to obtain seismic data with wide frequency-bands, wide-azimuth angles, and high folds, which contain rich geological information. Next, we perform the near-surface Q-compensation, viscoelastic prestack time migration, seismic attributes, and seismic waveform indication inversion on the new acquired seismic data. The 3D case study indicates the benefits of improving the imaging of thin-sand body and the accuracy of inversion and reservoir characterization using the method in this paper.

Fit for Purpose

2021 ◽  
pp. 21-42
Author(s):  
Erika Prager ◽  
Barbara M. Hall ◽  
Laurie Wellner ◽  
B. Andrew Riggle
Keyword(s):  
Design Process ◽  
Continuous Improvement ◽  
Educational Needs ◽  
Illustrative Case ◽  
Doctor Of Education ◽  
Professional Goals ◽  
Fit For Purpose ◽  
Education Degree ◽  
Illustrative Case Study

Using an illustrative case study, this chapter explores the two-year design process of a practice-based Doctor of Education degree program in an online university. Emerging from the continuous improvement lens, the redesign process centered around the examination of the purpose of the degree in the context of meeting the educational needs of practitioners in the field. Principally, this program redesign led to greater differentiation between the practitioner-based EdD degree and the PhD to provide students with distinct options for meeting their personal and professional goals.

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