A post-tensioned self-centering yielding brace system: development and performance-based seismic analysis

Abstract An operator was developing a High-Pressure High-Temperature (HPHT) field in the U.S. Gulf of Mexico (GOM). Completion design for the injector wells was cased-and-perforated, with no mechanical sand control. This led to the requirement for a tubing-conveyed perforating (TCP) system, featuring deep-penetrating (DP) charges which would meet specific performance requirements, in order to enable the wells to achieve injectivity targets. A perforating system was therefore developed and qualified to meet these requirements. This was an integrated system development, including both mechanical and explosive components, with simultaneous attention to performance, reliability, and quality assurance in the eventual field environment. The development program yielded a 4-3/4-inch carrier system, perforating charges, firing head, and gun hanger. All key components and systems were qualified in customer-witnessed testing, and demonstrated to meet or exceed operational function and performance requirements. The pressure and temperature rating of the newly-developed system is 30,000 psi at 425 °F. Explosive train function reliability was demonstrated at 380 °F for up to 28 days. The newly-developed perforating shaped charge was confirmed to exceed the stringent penetration depth and casing hole diameter performance requirements at downhole conditions. The firing head offers operational flexibility by being configurable for up to 15 pressure cycles prior to detonation, with an adjustable initiation threshold pressure to reduce risk to the completion string. The gun hanger was customized and demonstrated to exceed load requirements, and reliably set and release, in a test configuration featuring operator-provided field casing.

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Nonfunctional and Domain Requirements

Integrative Document and Content Management ◽

10.4018/978-1-59140-055-4.ch019 ◽

2003 ◽

pp. 415-430

Author(s):

Len Asprey ◽

Michael Middleton

Keyword(s):

Information Technology ◽

System Performance ◽

System Development ◽

Mass Storage ◽

Development Environment ◽

System Administration ◽

Performance Requirements ◽

Operating Environments ◽

Requirements Determination ◽

And Performance

In this chapter, we will examine requirements determination and analysis that may be useful for defining the nonfunctional and domain requirements for an IDCM solution, including system sizing, architecture, and performance requirements. We also include a discussion on domain requirements, such as those for information technology and system administration. Our objectives are to do the following: • Document the requirements for system sizing and mass storage. • Consider the types of requirements analysis that enterprises apply to help suppliers of IDCM solutions offer an architecture solution that may meet enterprise requirements. • Define system performance requirements with known caveats and assumptions. • Define the requirements for the IDCM system to integrate with enterprise desktop, server, and network operating environments. • Define the requirements for the system development environment. • Document the system administration requirements for the system.

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Early Capacity Testing of an Enterprise Service Bus

Innovations, Standards and Practices of Web Services ◽

10.4018/978-1-61350-104-7.ch013 ◽

2013 ◽

pp. 288-305

Author(s):

Ken Ueno ◽

Michiaki Tatsubori

Keyword(s):

Performance Evaluation ◽

Capacity Planning ◽

Service Oriented Architecture ◽

Service Providers ◽

System Development ◽

Resource Assessment ◽

Enterprise Service Bus ◽

Hardware Resource ◽

And Performance ◽

Set Up

An enterprise service-oriented architecture is typically done with a messaging infrastructure called an Enterprise Service Bus (ESB). An ESB is a bus which delivers messages from service requesters to service providers. Since it sits between the service requesters and providers, it is not appropriate to use any of the existing capacity planning methodologies for servers, such as modeling, to estimate the capacity of an ESB. There are programs that run on an ESB called mediation modules. Their functionalities vary and depend on how people use the ESB. This creates difficulties for capacity planning and performance evaluation. This article proposes a capacity planning methodology and performance evaluation techniques for ESBs, to be used in the early stages of the system development life cycle. The authors actually run the ESB on a real machine while providing a pseudo-environment around it. In order to simplify setting up the environment we provide ultra-light service requestors and service providers for the ESB under test. They show that the proposed mock environment can be set up with practical hardware resources available at the time of hardware resource assessment. Our experimental results showed that the testing results with our mock environment correspond well with the results in the real environment.

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The efficiency and performance detection algorithm and system development for photovoltaic system through use of thermal image processing technology

10.1063/1.5044158 ◽

2018 ◽

Cited By ~ 1

Author(s):

Jwujenq Chen ◽

Chialiang Lin ◽

Chenglian Liu

Keyword(s):

Image Processing ◽

System Development ◽

Detection Algorithm ◽

Thermal Image ◽

Processing Technology ◽

Photovoltaic System ◽

Thermal Image Processing ◽

Image Processing Technology ◽

And Performance

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Analyzing Strategic Stance in Public Services Management

Business Applications and Computational Intelligence ◽

10.4018/978-1-59140-702-7.ch017 ◽

2011 ◽

pp. 344-359 ◽

Cited By ~ 1

Author(s):

Malcolm J. Beynon ◽

Martin Kitchener

Keyword(s):

Public Management ◽

Missing Values ◽

Public Services ◽

System Development ◽

Uncertain Reasoning ◽

Term Care ◽

Data Set ◽

Dempster Shafer Theory ◽

And Performance ◽

Shafer Theory

This chapter describes the utilization of an uncertain reasoning-based technique in public services strategic management analysis. Specifically, the nascent NCaRBS technique (developed from Dempster-Shafer theory) is used to categorize the strategic stance of each state’s public long-term care (LTC) system to prospector, defender or reactor. Missing values in the data set are termed ignorant evidence and withheld in the analysis rather than transformed through imputation. Optimization of the classification of states, using trigonometric differential evolution, attempts to minimize ambiguity in their prescribed stance but not the concomitant ignorance that may be inherent. The graphical results further the elucidation of the uncertain reasoning-based analysis. This method may prove a useful means of moving public management research towards a state where LTC system development can be benchmarked and the relations between strategy processes, content, and performance examined.

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Muscle-Powered Blood Pump Driven by Linear Muscle Actuator: System Development and Performance

Heart Replacement ◽

10.1007/978-4-431-67023-0_47 ◽

1993 ◽

pp. 329-333 ◽

Cited By ~ 1

Author(s):

Naoki Sakakibara ◽

Hirofumi Takemura ◽

Takeo Tedoriya ◽

Masao Takahashi ◽

Hiroshi Ohtake ◽

...

Keyword(s):

System Development ◽

Blood Pump ◽

Actuator System ◽

And Performance

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Solar Water Heaters: A Review of Systems Research and Design Innovation

Green ◽

10.1515/green.2011.016 ◽

2011 ◽

Vol 1 (2) ◽

Cited By ~ 5

Author(s):

Brian Norton

Keyword(s):

System Development ◽

Unit Cost ◽

Hot Water ◽

Water Heating ◽

Water Heater ◽

Solar Water Heating ◽

Solar Water ◽

Water Heaters ◽

Systems Research ◽

And Performance

AbstractSolar water heating can be considered to be an established mature technology. The achievement of this status is the outcome of over a century of system development that culminated with a flourish of innovation in the last thirty years. Drivers for research and development have been achieving economic viability by devising systems that, for specific applications in particular climate contexts produced more hot water per unit cost. Reductions in both initial capital and installation costs have been achieved as well as in those associated with subsequent operation and maintenance. Research on solar water heating is discussed with the emphasis on overall systems though some key aspects of component development are also outlined. A comprehensive taxonomy is presented of the generic types of solar water heater that have emerged and their features, characteristics and performance are discussed.

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