PACT – Cost Effective, Digital, Fail-Safe Production Tree and Wellhead Actuator System

2020 ◽  
Author(s):  
Espen Sten Johansen ◽  
Dag Ketil Fredheim ◽  
Tom Huuse ◽  
Richard Volkers ◽  
Dag Almar Hansen ◽  
...  
2021 ◽  
Author(s):  
Espen Sten Johansen ◽  
Dag Ketil Fredheim ◽  
Richard Volkers ◽  
Dag Almar Hansen ◽  
Christian Petersen

Abstract E&P companies are challenged with the cost-effective development of smaller and marginal fields, while ensuring safety for its crew and facing increasing regulatory requirements for further reducing emissions and environmental impact. Key enablers to achieve profitable development of smaller fields and maintaining safe production in remote locations is digitizing and automating the production chain and limit the need for on-site personnel. There are a number of safety critical valves on wellheads and production trees that have historically been manually or hydraulically operated and thus not suited for fully remote operations. In 2017, Equinor, Baker Hughes and TECHNI formed a Joint Industry Project (JIP) to develop a new electric actuator control system. The actuator system is designed for fail-safe, critical operations offshore and is subject to stringent safety design requirements. The key driver is reducing CAPEX and OPEX and environmental impact for offshore installations, while increasing availability of wells while providing improved monitoring and condition based, predictive maintenance. The electric actuator system developed in the JIP has a patent pending fail-safe mechanism with extremely fast closing time to ensure well containment during critical situations. It is designed to be a drop-in replacement for existing hydraulic actuator solutions and is suitable for most standard wellhead and tree designs, sizes, and pressure ratings. The all-electric solution contains a multitude of sensors, that, in combination with an integrated digital interface, enables data-driven insights from the systems in operation. The actuator development is currently at Technology Readiness Level (TRL) 4 on the API 17N, 0 to 7 scale. In 2020, the JIP consortium was awarded NOK 8.2 million (USD 950 000) by the Norwegian Research Council DEMO 2000 program to support the test and qualification program. TRL 5 testing is planned in first half of 2021 yielding it ready for field installation.


Author(s):  
Dale Millward

Effective pipeline design and regular maintenance can assist in prolonging the lifespan of subsea pipelines, however the presence of marine vessels can significantly increase the risk of pipeline damage from anchor hazards. As noted in the Health and Safety Executive – Guideline for Pipeline Operators on Pipeline Anchor Hazards 2009. “Anchor hazards can pose a significant threat to pipeline integrity. The consequences of damage to a pipeline could include loss of life, injury, fire, explosion, loss of buoyancy around a vessel and major pollution”. This paper will describe state of the art pipeline isolation tooling that enables safe modification of pressurised subsea pipelines. Double Block and Bleed (DBB) isolation tools have been utilised to greatly reduce downtime, increase safety and maximise unplanned maintenance, providing cost-effective solutions to the end user. High integrity isolation methods, in compliance with international subsea system intervention and isolation guidelines (IMCA D 044 / IMCA D 006), that enable piggable and unpiggable pipeline systems to be isolated before any breaking of containment, will also be explained. This paper will discuss subsea pipeline damage scenarios and repair options available to ensure a safe isolation of the pipeline and contents in the event of an incident DNV GL type approved isolation technology enables the installation of a fail-safe, DBB isolation in the event of a midline defect. The paper will conclude with case studies highlighting challenging subsea pipeline repair scenarios successfully executed, without depressurising the entire pipeline system, and in some cases without shutting down or interrupting production.


2002 ◽  
Author(s):  
Joram Shenhar ◽  
John L. Hill ◽  
Mark A. Lombardo

State-of-the-art freight car handbrakes are manpower intensive. Setting and releasing handbrakes expose operators to safety hazards and the potential for human error exposes train operations for possible time delays, mild to severe maintenance issues and ultimately the potential for major rail accidents. In response to the need to reduce the hazard associated with freight car handbrakes, UTD has developed the Advanced Handbrake Actuator System (AHAS), a fail-safe powered handbrake device, accessible from ground level on either side of the car. The AHAS concept was developed, manufactured and demonstrated under sponsorship of the Federal Railroad Administration (FRA) Small Business Innovation Research (SBIR) program. The system is designed to replace existing handbrake wheels and provide significant improvements by offering new ways of applying or releasing the brake. Remote electronic signal, car mounted hand levered pneumatic valve, and a manual hand crank mechanism, requiring significantly less effort than that required by the state-of-the-art handbrake wheel, constitute three methods of actuation. The AHAS is comprised of a compression coil spring arranged to apply tension to the handbrake chain as its default condition. Two release systems are available. The first uses an air cylinder actuator connected in series with the spring and chain. Applying air pressure by remote or local command will compress the spring and release the handbrake. The spring may also be compressed to release the handbrake by a hand crank mechanism, accessible from ground level on either side of the car. The AHAS is equipped with a dedicated air reservoir charged with compressed air prior to departure via the train’s brake pipe. The AHAS was successfully field tested on a freight car in regular service over a period of three months and was found to be user friendly and safe, logging over 120 successful operations.


2019 ◽  
Vol 8 (4) ◽  
pp. 8077-8082

This paper is about an automatic irrigation control system which is cost effective and can be used for irrigation by a farmer. Today’s industrial automation and controlling of machine is high in cost and not suitable for a farming field. So, here we design a smart drip irrigation technology with effective control system in low cost. The voltage monitoring unit informs the farmer about the power supply conditions on the field. The aim of this study, is to control the motor automatically, and decide the direction of the water flow through valves, based on the inputs from the farmer and also with the collective inputs from the sensors, which finally notify instantly about the happenings and conditions of the field. It operates under low hardware cost by distributing irrigation to crops by elevation change and gravity. The soil moisture and amount of flow of water in each sector are major consideration to design a fail-safe system for a variety of crops planted at a time.


2013 ◽  
Vol 442 (1-3) ◽  
pp. 538-541 ◽  
Author(s):  
L. Commin ◽  
M. Rieth ◽  
B. Dafferner ◽  
H. Zimmermann ◽  
D. Bolich ◽  
...  
Keyword(s):  

1990 ◽  
Vol 122 (5) ◽  
pp. 769-777 ◽  
Author(s):  
J.H. Borden ◽  
L.J. Chong ◽  
B.S. Lindgren

AbstractBaited tree experiments confirmed the hypothesis that frontalin is a multifunctional pheromone that can induce the mountain pine beetle, Dendroctonus ponderosae Hopkins, to aggregate on and mass-attack lodgepole pine, Pinus conforta var. latifolia Engelmann. A re-examination was undertaken of the role of four known semiochemicals, myrcene, trans-verbenol, exo-brevicomin, and frontalin, tested as tree baits alone (with the exception of myrcene) and in all possible combinations. There was considerable redundancy evident in the semiochemical signal. For example, myrcene + frontalin and trans-verbenol + exo-brevicomin induced attack on baited trees at similar levels of intensity. The results suggest that beetles of either sex could initiate a mass attack. During the most attractive phase of host colonization, redundancy in the semiochemical signal could act as a fail-safe mechanism to ensure perception of and response to odors from an attacked tree. In addition the standard, commercial, tree bait containing myrcene, trans-verbenol, and exo-brevicomin might be modified by deleting myrcene, making a more acceptable and cost-effective operational bait.


2019 ◽  
Vol 945 ◽  
pp. 988-994
Author(s):  
E. Tskhovrebov ◽  
E. Velichko ◽  
U. Niyazgulov

The analysis of the current situation with the handling with extremely and highly hazardous wastes in Russia in terms of various industries, building and transport complex. According to the results of the studies, promising measures are proposed to create an industrial infrastructure for the processing, utilization, neutralization of the mentioned types of waste in the form of modern tasks for scientific and technical development, the creation of new cost-effective resource-saving, environmentally safe production complexes and systems, the introduction of accessible top-level technologies, ensuring the requirements of legislation in the field of handling with hazardous waste and protecting the environment.


Author(s):  
Tyler Ustrzycki ◽  
Christy Fernando ◽  
Michael Ligori ◽  
Nisha Papneja

Every winter, ice debris from the trailer’s of transport trucks cause significant problems on northern highways. This issue can cause a wide variety of damages ranging from broken windows to passenger injuries. This paper proposes a safe and durable design for an inflatable truck roof deicing system. The system is comprised of a rubber bladder secured to the roof of the trailer and fail-safe electrical system. The approach taken seeks to eliminate the accumulation of ice and snow on the roofs of trailers that could cause serious harm to surrounding vehicles. The rubber bladder is designed to be inflated with an on-board compression system while the vehicle is at rest, dislodging all ice on the surface of the trailer and then deflating the bladder before the truck is set in motion. This design seeks to take into account all aspects of the above mentioned problem to create a solution that is not only technically feasible but also safe, reliable and cost effective. Accompanying this design is a full needs assessment complete with scale model testing and safety report. Implementation of a safe, reliable truck roof deicing system on transport trucks a huge step to making our roads a safer place.


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