The Impact of Risk in Horizontal Directional Drilling

2012 ◽  
Author(s):  
Manley Osbak ◽  
Alireza Bayat ◽  
Carrie Murray
Keyword(s):  
Risk Mitigation ◽  
Risk Index ◽  
Business Case ◽  
Quantitative Information ◽  
Mitigation Measures ◽  
Directional Drilling ◽  
Information Industry ◽  
Project Schedule ◽  
Horizontal Directional Drilling ◽  
The Impact

The risks, associated with horizontal directional drilling (HDD) can have a significant impact on project schedule and cost. Contractors, engineers and owners are generally aware of the potential impact of this risk, but the awareness is largely qualitative in nature, and is thereby limiting for pointed decision making and the development of measured risk mitigation. Without quantitative information, industry stakeholders are without the means to evaluate risk strategies and identify appropriate risk mitigation measures in a manner that adequately develops and supports the business case for risk mitigation. As a result, the industry often has little choice other than to resort to accepting the risk and hoping for the best or transferring the risk using contractual methods. In order to move to a position of active assessment and mitigation, the industry needs quantitative information about the overall impact of risk as well as a comprehensive enumeration of risk events, the probability of occurrence and the impact of individual events. This paper looks at the general impact of risk as has occurred on 100 medium and large HDD projects. The general impact, in terms of schedule (and by extension, cost), serves to illuminate the need for structured risk mitigation. The paper also lists the risk events that have occurred on these 100 projects, as well as the frequency of occurrence, the average schedule impact and the Risk Index of each event type.

Evaluation of Hydraulic Fracturing Models and Their Limitations to Predict No-Drill Zones for Horizontal Directional Drilling

2018 ◽  
Author(s):  
Saeed Delara ◽  
Kendra MacKay
Keyword(s):  
Hydraulic Fracturing ◽  
Safety Factor ◽  
Standard Procedure ◽  
Accurate Determination ◽  
Strength Properties ◽  
Analytical Models ◽  
Alternative Methods ◽  
Directional Drilling ◽  
Horizontal Directional Drilling ◽  
The Impact

Horizontal directional drilling (HDD) has become the preferred method for trenchless pipeline installations. Drilling pressures must be limited and a “no-drill zone” determined to avoid exceeding the strength of surrounding soil and rock. The currently accepted industry method of calculating hydraulic fracturing limiting pressure with application of an arbitrary safety factor contains several assumptions that are often not applicable to specific ground conditions. There is also no standard procedure for safety factor determination, resulting in detrimental impacts on drilling operations. This paper provides an analysis of the standard methods and proposes two alternative analytical models to more accurately determine the hydraulic fracture point and acceptable drilling pressure. These alternative methods provide greater understanding of the interaction between the drilling pressures and the surrounding ground strength properties. This allows for more accurate determination of horizontal directional drilling limitations. A comparison is presented to determine the differences in characteristics and assumptions for each model. The impact of specific soil properties and factors is investigated by means of a sensitivity analysis to determine the most critical soil information for each model.

scholarly journals Installation of submarine cables and pipes in shallow waters and connecting them to the shore by the method of horizontal directional drilling

2021 ◽  
Vol 286 ◽  
pp. 04007
Author(s):  
Valeriu-Florian Vasilescu ◽  
Dumitru Dinu
Keyword(s):  
Marine Environment ◽  
Offshore Wind ◽  
Shallow Waters ◽  
Directional Drilling ◽  
Horizontal Directional Drilling ◽  
Negative Effects ◽  
Subsea Tunnel ◽  
Submarine Cables ◽  
Wind Energy Systems ◽  
The Impact

This article presents the horizontal directional drilling (HDD) as one of the most suitable technique used to reduce the impact on the environment during the submarine pipe and cable installation process, especially in the coastal area and shallow waters. HDD is a technique used to drill a subsea tunnel or under other designated area with the goal to pull a pipe or other facility through the drilled underground tunnel. With the development of the offshore natural gas and wind industry, the demand for the construction of transfer pipeline and cables has also increased. The installation of submarine pipelines and cables can have negative effects on the marine environment. This is one of the main reasons that construction and operation of offshore wind energy systems has been and continues to be regarded with scepticism by environmental activists, despite the undeniable benefits of this renewable energy source. The main objectives of this article are to emphasize the importance of using this technique but also to highlight the benefits, in particular by significantly reducing the impact on the marine environment.

scholarly journals Risk assessment at work and prevention strategies on COVID-19 in Italy

PLoS ONE ◽  
2021 ◽  
Vol 16 (3) ◽  
pp. e0248874
Author(s):  
Sergio Iavicoli ◽  
Fabio Boccuni ◽  
Giuliana Buresti ◽  
Diana Gagliardi ◽  
Benedetta Persechino ◽  
...  
Keyword(s):  
Public Health ◽  
Occupational Safety ◽  
Health Workers ◽  
Risk Mitigation ◽  
Risk Index ◽  
Health And Safety ◽  
Epidemiological Surveillance ◽  
Risk Of Infection ◽  
Set Up ◽  
The Impact

The COVID-19 pandemic has spread worldwide, with considerable public health and socio-economic impacts that are seriously affecting health and safety of workers, as well as their employment stability. Italy was the first of many other western countries to implement extended containment measures. Health workers and others employed in essential sectors have continued their activity, reporting high infection rate with many fatalities. The epidemiological trend highlighted the importance of work as a substantial factor to consider both when implementing strategies aimed at containing the pandemic and shaping the lockdown mitigation strategy required for sustained economic recovery. To support the decision-making process, we have developed a strategy to predict the risk of infection by SARS-CoV-2 in the workplace based on the analysis of the working process and proximity between employees; risk of infection connected to the type of activity; involvement of third parties in the working processes and risk of social aggregation. We applied this approach to outline a risk index for each economic activity sector, with different levels of detail, also considering the impact on mobility of the working population. This method was implemented into the national epidemiological surveillance model in order to estimate the impact of re-activation of specific activities on the reproduction number. It has also been adopted by the national scientific committee set up by the Italian Government for action-oriented policy advice on the COVID-19 emergency in the post lockdown phase. This approach may play a key role for public health if associated with measures for risk mitigation in enterprises through strategies of business process re-engineering. Furthermore, it will make a contribution to reconsidering the organization of work, including also innovation and fostering the integration with the national occupational safety and health (OSH) system.

Technical Risks and Mitigation Measures in Combustion Turbine Project Development

2002 ◽  
Vol 125 (1) ◽  
pp. 228-235 ◽  
Author(s):  
D. Grace ◽  
J. Scheibel
Keyword(s):  
Power Plants ◽  
Development Process ◽  
Risk Mitigation ◽  
Mitigation Measures ◽  
Life Cycle Costs ◽  
Project Development ◽  
Technical Risk ◽  
Technical Risks ◽  
Interruption Costs ◽  
The Impact

Project developers, insurers, financiers, and maintenance organizations have an interest in quantifying technical risks and evaluating risk mitigation alternatives for combustion turbine (CT) power plants. By identifying exposure to risk early in the project development process, optimal procurement decisions, and mitigation measures can be adopted for improved financial returns. This paper describes a methodology used to quantify all nonfuel O&M costs, including scheduled and unplanned maintenance, and business interruption costs due to unplanned outages. The paper offers examples that demonstrate the impact of technical risk on project profitability. An overview of activities required for addressing technical risk as part of the equipment selection and procurement process is provided, and areas of technical improvements for reducing life cycle costs are described.

scholarly journals Protecting clinical trials in cystic fibrosis during the SARS-CoV-2 pandemic: risks and mitigation measures

Trials ◽  
2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Silke van Koningsbruggen-Rietschel ◽  
Fiona Dunlevy ◽  
Veerle Bulteel ◽  
Kate Hayes ◽  
Anne Verbrugge ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Cystic Fibrosis ◽  
Clinical Trials ◽  
Risk Mitigation ◽  
Home Delivery ◽  
Mitigation Measures ◽  
Site Location ◽  
Phone Calls ◽  
Source Data Verification ◽  
The Impact

AbstractThe SARS-CoV-2 pandemic has disrupted clinical trials worldwide. The European Cystic Fibrosis Society-Clinical Trials Network (ECFS-CTN) has tracked clinical trial disruption by surveying its 58 trial sites across 17 European countries and collated information on measures to mitigate the impact of the pandemic and ensure trial continuity. Here, we present recommendations on how to reduce the risk of SARS-CoV-2 exposure to patients and trial staff by implementing remote trial visits where possible, using home assessments, video and phone calls, electronic consent, and home delivery of study drugs. We discuss the practicalities of remote source data verification, protocol amendments, changing trial site location, and staff absences and home working. We outline recommendations on how to protect trial outcomes, including home assessments, safety reporting, protocol deviations, and recruitment challenges. Finally, we discuss the importance of continued access to study drugs via extension trials for some patients. This guidance was co-created from the shared knowledge and experience of sites in our network and was re-distributed directly to all ECFS-CTN sites to help mitigate the impact of further waves of the SARS-CoV-2 pandemic. We will also use this guidance to assist companies, academia, and consortia with future protocol design and risk mitigation plans. This guidance can be applied to clinical trials in other diseases and could help sites that are not supported by clinical trial networks.

Monitoring of Pull-Load and Borehole Pressure During HDD Installations

2004 ◽  
Author(s):  
Erez N. Alloche ◽  
Mike E. Baumert
Keyword(s):  
Quality Control ◽  
Electronic Record ◽  
Mitigation Measures ◽  
Construction Technology ◽  
Directional Drilling ◽  
Horizontal Directional Drilling ◽  
Timely Manner ◽  
Design Models ◽  
Real Time Information ◽  
Time Information

Quality control and quality assurance during horizontal directional drilling installations (HDD) is a topic that is gaining increasing interest and concern in the engineering community as HDD is becoming a mainstream construction technology. The paper describes a method for increasing the transparency of pulled-in-place trenchless installations using an array of sensors mounted within a protective casing, located ahead of the pipe product pull head. The data collected by the sensors, including pull-load and borehole pressure, is stored on a memory chip placed onboard the platform, thus creating a permanent electronic record of the installation. This data can be used by contractors, consultants and owners for quality control purposes and the improvement of design models and construction practices. In addition, real-time information can be provided to the operator, giving him/her the opportunity to detect potential problems in a timely manner so that appropriate mitigation measures can be taken.

scholarly journals Hands-On Experience of Crowdsourcing for Flood Risks. An Android Mobile Application Tested in Frederikssund, Denmark

2018 ◽  
Vol 15 (9) ◽  
pp. 1926 ◽  
Author(s):  
Simone Frigerio ◽  
Luca Schenato ◽  
Giulia Bossi ◽  
Matteo Mantovani ◽  
Gianluca Marcato ◽  
...  
Keyword(s):  
Emergency Response ◽  
Risk Mitigation ◽  
Weather Forecast ◽  
Relevant Information ◽  
Mitigation Measures ◽  
Exposed Population ◽  
Hands On ◽  
The Impact ◽  
Near Future ◽  
Design And Testing

There is evidence that the toll of death and destruction caused by natural hazards is rising. This is often ascribed to the impact of climate change that resulted in an increased frequency of extreme meteorological events. As a consequence, it is realistic to expect that the casualties and damages caused by floods will increase in the near future. Advanced weather forecast is a fundamental tool to predict the occurrence of floods and structural mitigation measures are crucial for flood protection. However, these strategies should be associate with tools to promote and increase natural-disaster awareness and nonstructural mitigation measures in the exposed population. To bridge this gap, we coupled innovative, ICT-based technologies with crowdsourcing. The idea is to exploit geospatial data gathered by citizens and volunteers with their own devices such as mobile phones to provide authorities with relevant information in case of flood emergencies. This paper describes the design and testing of an Android application named MAppERS (Mobile Applications for Emergency Response and Support), thought to enhance active participation and response of the population in territorial and flood-risk mitigation in Frederikssund, Denmark. The results of the piloting fully validate MAppERS as an effective tool to support the decision-making process during a crisis and to improve the awareness of the community and their disaster resilience.

A proposed analytic framework for determining the impact of an antimicrobial resistance intervention

2017 ◽  
Vol 18 (1) ◽  
pp. 1-25 ◽  
Author(s):  
Yrjo T. Grohn ◽  
Carolee Carson ◽  
Cristina Lanzas ◽  
Laura Pullum ◽  
Michael Stanhope ◽  
...  
Keyword(s):  
Antimicrobial Resistance ◽  
Food Supply ◽  
Risk Mitigation ◽  
Enteric Bacteria ◽  
Mitigation Measures ◽  
Biological Synthesis ◽  
Systems Science ◽  
Suitable Framework ◽  
The Impact ◽  
The Relationship

AbstractAntimicrobial use (AMU) is increasingly threatened by antimicrobial resistance (AMR). The FDA is implementing risk mitigation measures promoting prudent AMU in food animals. Their evaluation is crucial: the AMU/AMR relationship is complex; a suitable framework to analyze interventions is unavailable. Systems science analysis, depicting variables and their associations, would help integrate mathematics/epidemiology to evaluate the relationship. This would identify informative data and models to evaluate interventions. This National Institute for Mathematical and Biological Synthesis AMR Working Group's report proposes a system framework to address the methodological gap linking livestock AMU and AMR in foodborne bacteria. It could evaluate how AMU (and interventions) impact AMR. We will evaluate pharmacokinetic/dynamic modeling techniques for projecting AMR selection pressure on enteric bacteria. We study two methods to model phenotypic AMR changes in bacteria in the food supply and evolutionary genotypic analyses determining molecular changes in phenotypic AMR. Systems science analysis integrates the methods, showing how resistance in the food supply is explained by AMU and concurrent factors influencing the whole system. This process is updated with data and techniques to improve prediction and inform improvements for AMU/AMR surveillance. Our proposed framework reflects both the AMR system's complexity, and desire for simple, reliable conclusions.

scholarly journals ANALYSING DELAY IMPACT FROM POTENTIAL RISK FACTORS ON PROJECT DELIVERY OF OIL AND GAS PIPELINE: A CASE STUDY IN IRAQ

2021 ◽  
Vol 2 (2) ◽  
Author(s):  
LAYTH A KRAIDI ◽  
Raj Shah ◽  
Wilfred Matipa ◽  
Fiona Fiona Borthwick
Keyword(s):  
Risk Factors ◽  
Oil And Gas ◽  
Risk Mitigation ◽  
Mitigation Measures ◽  
Project Delivery ◽  
Analysis Framework ◽  
Potential Risk Factors ◽  
South Of Iraq ◽  
The Impact

The aim of this paper is to present the design and specifications of an integrated Delay Analysis Framework (DAF), which could be used to quantify the delay caused by the Risk Factors (RFs) in Oil and Gas Pipelines (OGPs) projects in a simple and systematic way. The main inputs of the DAF are (i) the potential list of RFs in the projects and their impact levels on the projects and the estimated maximum and minimum duration of each task. Monte Carlo Simulation integrated within @Risk simulator was the key process algorithm that used to quantify the impact of delay caused by the associated RFs. The key output of the DAF is the amount of potential delay caused by RFs in the OGP project. The functionalities of the developed DAF were evaluated using a case study of newly developed OGP project, in the south of Iraq. It is found that the case study project might have delayed by 45 days if neglected the consideration of the RFs associated with the project at the construction stage. The paper concludes that identifying the associated RFs and analysing the potential delay in advance will help in reducing the construction delay and improving the effectiveness of the project delivery by taking suitable risk mitigation measures.  

A hybrid approach for quantifying supply chain risk and prioritizing the risk drivers

2018 ◽  
Vol 29 (3) ◽  
pp. 533-569 ◽  
Author(s):  
Pradeep Kumar Tarei ◽  
Jitesh J. Thakkar ◽  
Barnali Nag
Keyword(s):  
Supply Chain ◽  
Risk Mitigation ◽  
Risk Index ◽  
Hybrid Approach ◽  
Significant Risk ◽  
Petroleum Products ◽  
System Quality ◽  
Content Type ◽  
Risk Quantification ◽  
The Impact

Purpose The purpose of this paper is to identify various risk and sub-risk drivers that affect the supply chain (SC) performance and to propose a framework to quantify the overall SC risk index by considering the importance of each risk and sub-risk drivers and their mutual interactions. Design/methodology/approach A hybrid method based on decision-making trial and evaluation laboratory and analytical network process has been proposed to develop the risk quantification framework. A case study of Indian petroleum supply chain (PSC) has been illustrated to explain the proposed method. Findings The results of this study found that transportation/logistics (delivery system), quality of the petroleum products, crude supply, customer’s order and legal/political regulations are the most significant risk drivers of a typical PSC. It is also found that the Indian PSC possesses a risk score of 34 percent. Research limitations/implications The quantification of risk in operational measure provides an unblemished representation of the overall SC risk. Unlike the existing financial measure, it takes complex subjective operational effectiveness like product quality, customer satisfaction, etc., into consideration. Identifying the high-prioritized risks helps the decision and policy makers to merely focus on the most prominent risk drivers, and reduce the impact of overall SC risk. Planning a risk mitigation strategy at a given level of risk is however beyond the scope of this research. Originality/value The paper develops a risk quantification framework in the context of a PSC.

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