Design Optimization for Hydraulically Driven Agitation Tool in Extended Coiled Tubing Reach Application

2021 ◽  
Author(s):  
Hussain Saiood ◽  
Laurie Duthie ◽  
Ahmed Albaqshi ◽  
Muhammad Ahsan
Keyword(s):  
Best Practice ◽  
New Technologies ◽  
Critical Factor ◽  
Static Friction ◽  
Lessons Learned ◽  
Resistance Force ◽  
Coiled Tubing ◽  
Contact Points ◽  
The Right ◽  
Helical Buckling

Abstract As the boundaries are pushed with increased length of horizontal wells, coiled tubing (CT) well intervention capabilities are challenged requiring new technologies to expand existing capabilities. When utilizing coiled tubing, standard best practice is to first utilize CT modeling software to optimize CT size and weight for maximum reach. After choosing the right CT size, the next and most critical factor to address in extending the reach is, drag and frictional forces between the CT and the wellbore. Reducing friction and delaying helical buckling will significantly increase the reach. Several versions have been created utilizing various pressure pulse tools in the CT bottom hole assemble (BHA) to accomplish this task. These tools work by creating vibration or pressure pulses that allow for a delay in the onset of the helical buckling of CT and are widely utilized and accepted as solutions. However, existing agitation tool limitations have been reached. A newly designed and developed, hydraulically driven agitation tool (HDAT) to extend CT reach delivers continuous frequency pressure waves along the entire length of the CT. The HDAT provides a reduction in static friction and converts that to a dynamic friction form along the CT string. The continuous hydraulic agitation reduces the onset of helical buckling and thus reduces CT helical contact points, resulting in lower resistance force. The development, design, and lab testing for the HDAT has been through extensive development stages resulting in three generations of the tool, with each version providing an incrementally improved performance. The latest generation HDAT has been designed to function at optimum operational frequencies and produce excitation that works on a longer section of the CT. The performance advancement of the newly designed HDAT generation was achieved after extensive lab testing with a field run reaching a total depth of 24,500 ft over a 4,600 ft open hole lateral section. The new HDAT was redesigned to improve performance and reliability to achieve an effective matrix acid stimulation treatment. The lessons learned from previous generations were imbedded to extend the reach of the CT in the most challenging extended reach wells.

Jointed Tubing Injector Snubbing on Extended Reach Wells

2021 ◽  
Author(s):  
H. J. Miller ◽  
A. D. Richard
Keyword(s):  
Control System ◽  
Static Friction ◽  
Block System ◽  
Coiled Tubing ◽  
Continuous Movement ◽  
Safety Risks ◽  
Helical Buckling ◽  
And Control

Abstract OBJECTIVE / SCOPE An injector has been developed that is able to continuously move conventional jointed tubing in and out of wells that may be underbalanced. It is an advantage to use the jointed tubing injector rather than coiled tubing or conventional hydraulic snubbing due to cost, speed of operation, transportation, effectiveness, and safety. The paper will describe the function and application of the jointed pipe injector. METHODS, PROCEDURES, PROCESS An injector has been designed with retractable gripping segments integral to the gripper blocks that are able to function on conventional jointed tubing, over interconnecting couplings and with the advantages of continuously operating injector movement. The description is to include how the geometry of the retractable gripper block system works and how the technical and safety risks of a conventional snubbing system or coiled tubing are overcome. Configurations whereby the jointed tubing injector can be used to provide methods of completing wells that are safer and more efficient than coiled tubing or a conventional hydraulic snubbing jack will be presented. RESULTS, OBSERVATIONS, CONCLUSIONS The biggest limitation of coiled tubing is due to its size and residual bend, it is not capable of reaching the end of the well before the wellbore friction causes helical buckling. The OD of the coiled tubing is limited by the available reel sizes and the difficulty transporting the large reels due to road dimensional and weight limitations. Coiled tubing is not able to be rotated at any time in the well. The use of jointed tubing eliminates those limitations. When a well is being completed with a conventional hydraulic snubbing jack, the length of the stroke that the jack can take is limited by the allowable unsupported length of the tubing to ensure that it will not buckle. It is also forced to stop workstring movement each time the jack is reset therefore the static friction of the workstring must be overcome during each movement of the jacks. The design of the jointed tubing injector minimizes the unsupported length of the tubing and allows the continuous movement of the tubing. The operation is less labor intensive, and the controls can be moved to a position that is less exposed to danger. NOVEL / ADDITIVE INFORMATION The Jointed Tubing Injector can continuously move jointed tubulars in and out of a well. There is no other piece of equipment that will address as many of the problems that have been experienced in the completion of extended reach wells. The paper will describe the injector and control system and how it can be applied to solve the challenges.

The Overlooked Intricacies of Wellbore Cleanout in Sub-Hydrostatic Conditions with Coiled Tubing: Lessons Learned Toward an Effective Approach

2021 ◽  
Author(s):  
Saad Hamid ◽  
Nahr M. Abulhamayel ◽  
Danish Ahmed ◽  
Zahaezuani Rafiq Hamidon
Keyword(s):  
Pressure Sensors ◽  
Lessons Learned ◽  
Internal Diameter ◽  
Well Production ◽  
Coiled Tubing ◽  
Prevention Measure ◽  
Open Hole ◽  
The Difference ◽  
The Right ◽  
Nitrogen Rates

Abstract This study focuses on horizontal wells completed with pre-perforated liners installed in open holes, and which produce under sub-hydrostatic conditions. During workover operations, loss circulation materials (LCM) are routinely pumped, thus requiring coiled tubing (CT) cleanout interventions to enable well production afterwards. The sub-hydrostatic nature of the reservoir makes it challenging to maintain optimum bottomhole pressure (BHP) and have the ideal downhole conditions, without significant losses and with sufficient annular velocities, for an effective cleanout. During CT cleanout operations, the LCM plugging the formation may falsely create a perception that the well is able to sustain a column of fluid. However, as the LCM is cleaned out and the wellbore starts communicating with the reservoir, sudden fluid losses may occur, causing solids in the annulus to fall and leading to a stuck pipe scenario. Constant control of the balanced downhole conditions is therefore critical in such operations—yet frequently overlooked during job design. The use of real-time downhole pressure sensors thus not only ensure effective cleanout but also act as a stuck pipe prevention measure. Based on job executions in similar wells, several lessons learned were compiled. The ability to maintain optimum downhole conditions by adjusting liquid and nitrogen rates during cleanout has proven to be key to a successful cleanout. Additionally, in one of the wells where CT did get stuck, the team was able to prevent debris from falling, thus addressing the root cause, and facilitating the implementation of an effective contingency plan to get the pipe free. The need for live downhole monitoring is even more important when operating in the pre-perforated liner sections that are exposed to the open hole. Common designs calculate annular velocities based on the internal diameter of the liner, but in reality, the much bigger openhole diameter shall be taken into consideration, which result in much lower values of annular velocities in reality. Additionally, selection of the right bottomhole assembly (BHA) is critical for the overall system performance. In the presented case, the motor and mill configuration was observed to be more effective compared to a high-pressure rotary jetting tool. However, as the motor and mill combination creates significant vibrations while operating, it becomes critical to use a ruggedized version of the live downhole CT acquisition system to ensure maximum reliability. The observations compiled throughout operations enabled the development of best practices. Risks involved in a cleanout operation are often underestimated, especially in a well with a depleted reservoir. As more reservoirs face depletion in mature fields globally, the ability to clearly understand the downhole dynamics during such operations makes the difference between a successful job and a catastrophic failure.

Managing Landscape Irrigation to Avoid Soil and Nutrient Losses

EDIS ◽  
2013 ◽  
Vol 2013 (11) ◽  
Author(s):  
George Hochmuth ◽  
Laurie Trenholm ◽  
Don Rainey ◽  
Esen Momol ◽  
Claire Lewis ◽  
...  
Keyword(s):  
Natural Environment ◽  
Management Practices ◽  
Root Zone ◽  
Irrigation Management ◽  
Critical Factor ◽  
Nutrient Losses ◽  
County Agents ◽  
The Right ◽  
Soil And Water

Proper irrigation management is critical to conserve and protect water resources and to properly manage nutrients in the home landscape. How lawns and landscapes are irrigated directly impacts the natural environment, so landscape maintenance professionals and homeowners must adopt environmentally-friendly approaches to irrigation management. After selecting the right plant for the right place, water is the next critical factor to establish and maintain a healthy lawn and landscape. Fertilization is another important component of lawn and landscape maintenance, and irrigation must be applied correctly, especially following fertilization, to minimize potential nutrient losses. This publication supplements other UF/IFAS Extension publications that also include information on the role of soil and the root zone in irrigation management. This publication is designed to help UF/IFAS Extension county agents prepare materials to directly address nutrient losses from lawns and landscapes caused by inadequate irrigation management practices. This 6-page fact sheet was written by George Hochmuth, Laurie Trenholm, Don Rainey, Esen Momol, Claire Lewis, and Brian Niemann, and published by the UF Department of Soil and Water Science, October 2013. http://edis.ifas.ufl.edu/ss586

WITHWomen: User Centered Approach to the Design and Development of a suite of Intimate Partner Violence Screening and Safety Planning Web-Applications (Preprint)

2020 ◽  
Author(s):  
Patricia O'Campo ◽  
Alisa Velonis ◽  
Pearl Buhariwala ◽  
Janisha Kamalanathan ◽  
Maha Awaiz Hassan
Keyword(s):  
Partner Violence ◽  
Web Applications ◽  
Lessons Learned ◽  
Evidence Based ◽  
Safety Planning ◽  
Future Design ◽  
Mhealth Technology ◽  
The Right ◽  
Safe Access ◽  
Health Applications

BACKGROUND The popularity of mHealth technology has resulted in the development of numerous applications for almost every type of self-improvement or disease management. M- and e-health solutions for increasing awareness about and safety around partner violence is no exception. OBJECTIVE These applications allow women to control access to these resources and provide unlimited, and with the right design features, safe access when these resources are needed. Few applications, however, have been designed in close collaboration with intended users to ensure relevance and effectiveness. METHODS We report here on the design of a pair of evidence-based m- and e-health applications to facilitate early identification of unsafe relationship behaviors and tailored safety planning to reduce harm from violence including the methods by which we collaborated with and sought input from population of intended users. RESULTS The demographic characteristics of those who participated in the various surveys and interviews to inform the development of our screening and safety-decision support app are presented in (Table 2). CONCLUSIONS Finally, we share challenges we faced and lessons learned that might inform future design efforts of m- and e-health evidence-based applications.

AI and Migration Management

2020 ◽  
pp. 768-787
Author(s):  
Petra Molnar
Keyword(s):  
Human Rights ◽  
New Technologies ◽  
Forced Migration ◽  
Fundamental Rights ◽  
International Human Rights Law ◽  
Privacy Rights ◽  
International Regulation ◽  
Development Technology ◽  
And Migration ◽  
The Right

This chapter focuses on how technologies used in the management of migration—such as automated decision-making in immigration and refugee applications and artificial intelligence (AI) lie detectors—impinge on human rights with little international regulation, arguing that this lack of regulation is deliberate, as states single out the migrant population as a viable testing ground for new technologies. Making migrants more trackable and intelligible justifies the use of more technology and data collection under the guide of national security, or even under tropes of humanitarianism and development. Technology is not inherently democratic, and human rights impacts are particularly important to consider in humanitarian and forced migration contexts. An international human rights law framework is particularly useful for codifying and recognizing potential harms, because technology and its development are inherently global and transnational. Ultimately, more oversight and issue specific accountability mechanisms are needed to safeguard fundamental rights of migrants, such as freedom from discrimination, privacy rights, and procedural justice safeguards, such as the right to a fair decision maker and the rights of appeal.

Conference report: innovation, interaction … and a lot of data: first time reflections on Internet Librarian International, UK 2018

2019 ◽  
Vol 36 (2) ◽  
pp. 21-22
Author(s):  
Ray Harper
Keyword(s):  
Best Practice ◽  
New Technologies ◽  
Conference Report ◽  
Library Services ◽  
New Techniques ◽  
Content Type ◽  
Making A Difference ◽  
Analyse Data ◽  
Physical Spaces ◽  
First Time

Purpose The purpose of this paper is to summarise a number of presentations at Day 1 of the Internet Librarian International conference, London, UK (16 October 2018). This was the 20th conference in the series, and the three key themes included were the next-gen library and librarian; understanding users, usage and user experience; and inclusion and inspiration: libraries making a difference. Design/methodology/approach This paper reports from the viewpoint of a first-time attendee of the conference. This summarises the main issues raised by each presentation and draws out the key learning points for practical situations. Findings The conference covered a variety of practical ways in which libraries can use technology to support users and make decisions about services. These include developing interactive physical spaces which include augmented reality; introducing “chat-bots” to support users; using new techniques to analyse data; and piloting new ways to engage users (such as coding clubs). A key theme was how we use and harness data in a way that is ethical, effective and relevant to library services. Originality/value This conference focussed on practical examples of how library and information services across sectors and countries are innovating in a period of huge change. The conference gave delegates numerous useful ideas and examples of best practice and demonstrated the strength of the profession in adapting to new technologies and developments.

scholarly journals Slipping–rolling transitions of a body with two contact points

2021 ◽  
Author(s):  
Mate Antali ◽  
Gabor Stepan
Keyword(s):  
Rigid Body ◽  
Contact Point ◽  
Static Friction ◽  
Rigid Body Dynamics ◽  
Contact Forces ◽  
Friction Forces ◽  
Contact Points ◽  
Body Dynamics ◽  
Coulomb Model ◽  
Rigid Surfaces

AbstractIn this paper, the general kinematics and dynamics of a rigid body is analysed, which is in contact with two rigid surfaces in the presence of dry friction. Due to the rolling or slipping state at each contact point, four kinematic scenarios occur. In the two-point rolling case, the contact forces are undetermined; consequently, the condition of the static friction forces cannot be checked from the Coulomb model to decide whether two-point rolling is possible. However, this issue can be resolved within the scope of rigid body dynamics by analysing the nonsmooth vector field of the system at the possible transitions between slipping and rolling. Based on the concept of limit directions of codimension-2 discontinuities, a method is presented to determine the conditions when the two-point rolling is realizable without slipping.

scholarly journals Management of Distress in Patients with Cancer—Are We Doing the Right Thing?

2020 ◽  
Vol 54 (12) ◽  
pp. 978-984
Author(s):  
Joost Dekker ◽  
Kristi D Graves ◽  
Terry A Badger ◽  
Michael A Diefenbach
Keyword(s):  
Emotional Support ◽  
Hybrid Approach ◽  
Psychosocial Care ◽  
Evidence Base ◽  
Case Finding ◽  
Lessons Learned ◽  
Distress Screening ◽  
Underlying Assumption ◽  
Patients With Cancer ◽  
The Right

Abstract Background Screening for distress and referral for the provision of psychosocial care is currently the preferred approach to the management of distress in patients with cancer. To date, this approach has shown a limited effect on the reduction of distress. Recent commentaries have argued that the implementation of distress screening should be improved. On the other hand, the underlying assumption that a referral for psychosocial care is required for distressed patients can be questioned. This has led to the development of an alternative approach, called emotional support and case finding. Purpose In the context of finding innovative solutions to tomorrow’s health challenges, we explore ways to optimize distress management in patients with cancer. Methods and Results We discuss three different approaches: (i) optimization of screening and referral, (ii) provision of emotional support and case finding, and (iii) a hybrid approach with multiple assessments, using mobile technology. Conclusions We suggest continued research on the screening and referral approach, to broaden the evidence-base on improving emotional support and case finding, and to evaluate the utility of multiple assessments of distress with new interactive mobile tools. Lessons learned from these efforts can be applied to other disease areas, such as cardiovascular disease or diabetes.

scholarly journals Teleworking: A New Reality Conditioned by the Right to Privacy

Laws ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 64
Author(s):  
Carlos Arroyo-Abad
Keyword(s):  
New Technologies ◽  
Legal Framework ◽  
Right To Privacy ◽  
The Right To Privacy ◽  
Work From Home ◽  
Provision Of Services ◽  
The Right

Faced with protecting the right to privacy and, with it, the inviolability of homes, the development of new technologies and the possibility of developing work from home has opened the door to a series of new conflicts that require us to provide a specific legal framework by which such situations can be addressed. In the Spanish case, we speak of Law 10/2021 from 9 July on remote working. The objective of this study is to assess the scope as well as the problems that this law generates during its application, regarding controlling the provision of services. However, we not only identify the incidental factors, but also provide a necessary reinterpretation of the right to privacy from the perspective of the inviolability of homes, especially when its current articulation may operate to the detriment of employees’ rights, as contradictory as this may seem.

scholarly journals Embracing Industry 4.0: Empirical Insights from Malaysia

Informatics ◽  
2021 ◽  
Vol 8 (2) ◽  
pp. 30
Author(s):  
Mansoor Ahmed Soomro ◽  
Mohd Hizam-Hanafiah ◽  
Nor Liza Abdullah ◽  
Mohd Helmi Ali ◽  
Muhammad Shahar Jusoh
Keyword(s):  
Industry 4.0 ◽  
New Technologies ◽  
Descriptive Study ◽  
Digital Transformation ◽  
Quantitative Approach ◽  
Survey Questionnaire ◽  
Digital Revolution ◽  
Leadership Strategy ◽  
The Right ◽  
The Cost

Industry 4.0 revolution, with its cutting-edge technologies, is an enabler for businesses, particularly in reducing the cost and improving the productivity. However, a large number of organizations are still too in their infancy to leverage the true potential of Industry 4.0 and its technologies. This paper takes a quantitative approach to reveal key insights from the companies that have implemented Industry 4.0 technologies. For this purpose, 238 technology companies in Malaysia were studied through a survey questionnaire. As technology companies are usually the first in line to adopt new technologies, they can be studied better as leaders in adopting the latest technologies. The findings of this descriptive study surfaced an array of insights in terms of Industry 4.0 readiness, Industry 4.0 technologies, leadership, strategy, and innovation. This research paper contributes by providing 10 key empirical insights on Industry 4.0 that can be utilized by managers to pace up their efforts towards digital transformation, and can help the policymakers in drafting the right policy to drive the digital revolution.

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