Self-Healing Cement System-A Step Forward in Reducing Long-Term Environmental Impact

2010 ◽  
Author(s):  
Sylvaine Le Roy-Delage ◽  
Alain Comet ◽  
Andre Garnier ◽  
Jean-Loup Presle ◽  
Helene Bulte-Loyer ◽  
...  
Keyword(s):  
Environmental Impact ◽  
Self Healing ◽  
System A ◽  
Cement System

Successful Remediation of Sustained Casing Pressures in Gas Cap Injector Wells with the Use of Flexible and Self Healing System

2021 ◽  
Author(s):  
Bipin Jain ◽  
Abhijeet Tambe ◽  
Dylan Waugh ◽  
Moises MunozRivera ◽  
Rianne Campbell
Keyword(s):  
Self Healing ◽  
Injection Wells ◽  
Coiled Tubing ◽  
Cement System ◽  
Sustained Casing Pressure ◽  
Casing Pressure ◽  
New Generation ◽  
Prudhoe Bay ◽  
Production Tubing

Abstract Several injection wells in Prudhoe Bay, Alaska exhibit sustained casing pressure (SCP) between the production tubing and the inner casing. The diagnostics on these wells have shown communication due to issues with casing leaks. Conventional cement systems have historically been used in coiled-tubing-delivered squeeze jobs to repair the leaks. However, even when these squeeze jobs are executed successfully, there is no guarantee in the short or long term that the annular communication is repaired. Many of these injector wells develop SCP in the range of 300-400 psi post-repair. It has been observed that the SCP development can reoccur immediately after annulus communication repair, or months to years after an injector well is put back on injection. Once SCP is developed the well cannot be operated further. A new generation of cement system was used to overcome the remedial challenge presented in these injector wells. This document provides the successful application of a specialized adaptive cement system conveyed to the problematic zone with the advantage of using coiled tubing equipment for optimum delivery of the remedial treatment.

Use of Novel Self-Healing Materials to Control Sustained Casing Pressure and Prevent Long Term Environmental Impact

2015 ◽  
Author(s):  
Mohammad Arif Khattak ◽  
Bipin Jain ◽  
Sultan Al Kalbani ◽  
Junaid Ahmed ◽  
Agung Arya Afrianto ◽  
...  
Keyword(s):  
Environmental Impact ◽  
Self Healing ◽  
Sustained Casing Pressure ◽  
Casing Pressure

293 Enhancing Your Recovery: A Mobile Application for Patients Undergoing Vascular Surgery

2021 ◽  
Vol 108 (Supplement_2) ◽  
Author(s):  
S Hodge ◽  
K Pattabathula ◽  
J Jenkins ◽  
M Ogg
Keyword(s):  
Vascular Surgery ◽  
Mobile Application ◽  
Outpatient Appointment ◽  
Healthcare Settings ◽  
System A ◽  
University Of Technology ◽  
Operative Complications ◽  
Remote Consultations ◽  
Healthcare Assessment

Abstract Aim: With increasing demands on the healthcare system, a central (and currently essential) push for remote consultations, and an increasing number of co morbidities in the surgical population, the aim was to create an application that placed the focus on pre-hospital optimisation, education and autonomy – addressing these sector trends to enhance outcomes for patients and ease the burden on healthcare settings. Method After obtaining baseline data, I worked alongside students from the Queensland University of Technology to produce an application suitable for both iOS and android platforms. Results The application has four facets which mirror a patient’s journey from their initial outpatient appointment through to recovery. The application is easy to use, free to download and readily accessible. On opening the application, the user can select their planned operation and navigate along a personalised decision tree. Conclusions The application has been designed to educate and empower a patient to become an active participant in their care, leading to long-term changes in healthcare. Assessment is ongoing but early indications suggest that this will be a valuable tool in optimising outcomes for patients undergoing vascular surgery – leading to fewer post-operative complications and earlier restoration of functional status.

The importance of year-round flea and roundworm prevention in lockdown and beyond

2021 ◽  
Vol 12 (2) ◽  
pp. 54-57
Author(s):  
Ian Wright
Keyword(s):  
Drug Resistance ◽  
Environmental Impact ◽  
Pivotal Role ◽  
Parasite Control ◽  
Treatment Need ◽  
Zoonotic Risk ◽  
Control Protocols

Whether routine preventative deworming regimens for Toxocara spp. in cats and dogs should be used to reduce zoonotic risk, continues to be a subject of much debate. Nurses are on the frontline of giving preventative parasite control advice and it is vital that this is based on the latest evidence to minimise zoonotic risk while ensuring over treatment does not take place. The need for routine year-round flea treatment is also fundamental to parasite control protocols in cats and dogs. The benefits of routine flea treatment need to be considered against the possible environmental impact and drug resistance issues that may be associated with long-term use. Veterinary nurses play a pivotal role in giving accurate parasite control to clients and balancing these factors based on the latest evidence.

Cohesion versus friction in controlling the long-term strength of a self-healing experimental fault

2016 ◽  
Vol 121 (12) ◽  
pp. 8523-8547 ◽  
Author(s):  
J. Weiss ◽  
V. Pellissier ◽  
D. Marsan ◽  
L. Arnaud ◽  
F. Renard
Keyword(s):  
Self Healing ◽  
Term Strength

Is the water permit system a panacea or a bed of inefficiency? The case of South Africa

Water Policy ◽  
2013 ◽  
Vol 15 (4) ◽  
pp. 570-584 ◽  
Author(s):  
Devi Datt Tewari ◽  
Saidou Baba Oumar
Keyword(s):  
South Africa ◽  
Water Distribution ◽  
Water Markets ◽  
Water Management System ◽  
Administrative Costs ◽  
System A ◽  
Access To Water ◽  
License System ◽  
Institutional Efficiency

Although South Africa has adopted a very modern permit/license system to control access to water as a resource, the attainment of the lofty objectives (efficiency, equity and sustainability) of the National Water Act of 1998 depends on two critical factors: (1) the institutional efficiency of the water management system; and (2) the development of water markets and their efficient functioning. This study lists a number of concerns that the Act is not geared to resolve efficiently or in a timely manner. These concerns include the high administrative costs of implementation, poor incentives for long-term investments, bureaucratic inefficiency, practical problems in water pricing and adaptability to climate change threat. There is a need to re-think the ways and means with which to make water distribution more efficient in the country. One possible solution would be to develop water markets in the country.

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