By: Felix Petroleum  09-12-2011
Keywords: Drilling, publisher

FelixRig ® Real-Time

   WITSML (Wellsite Information Transfer Standard Mark-up Language) is the standard developed to solve the problem of a shared data representation between companies. WITSML is an XML-based language that allows industrial data to be represented in a predefined form and exchanged between companies. It was originally aimed at a large group of organisations (including oil companies, service companies, drilling contractors, application vendors and regulatory agencies) to allow the flow of technical information between companies. WITSML-enabled applications are becoming popular for a large number of organisations, and are almost a necessity for reportingbased applications.    A WITSML document represents a set of data that can be encapsulated within a single XML document. The document is used to represent a subset of the well-site domain. Static and real-time data can be represented within these documents. Static data is represented in an object-oriented fashion that embeds related data inside the same document. In contrast to this, real-time data is structured to allow quick additions to the document. These documents are usually split up into a header and data section. When new real-time data is collected, it is published by the server by adding a new value to the data section and updating the header to inform clients that new data is available.   WITSML can be used to stream data from continually updating sources. These sources(also known as data aggregators) collect information from multiple sensors and amalgamate it into a single storage system. A WITSML client can be used to continually query these aggregators to receive the latest updates. WITSML clients query the data aggregators for WITSML objects that support real-time streaming. These objects are structured in an expandable manner so that they can be updated easily. This is important as the produced volume of data can be quite high and the server must be able to update the object efficiently. As well as being structured with dynamic updates in mind, these WITSML objects also contain key fields that are used to check if new data has been published. If these fields change it is a sign to the clients that new data is available and they need to query for the next update.    The subscriber/publisher interface defines a system setup that allows multiple applications to connect to a feed of information. This type of connection allows clients to subscribe to topics of data and whenever data is published, the server transmits it to all the subscribed clients. The interface contains two key components: a publisher and subscriber. A publisher is a component that extracts data from an input source and publishes it for others to view. In the oil industry, an input source would typically be a sensor attached to equipment that would measure one or more of its attributes. Once the publisher has obtained the value, it inserts it into a temporary storage medium known as a topic. The server then forwards the new value to clients that are subscribed to that topic.
A subscriber is a component that can subscribe to multiple topics to receive data whenever it is published. A client is only required to subscribe to a topic and does not have to continually query the server for new information. It is the responsibility of server to push new information to clients.WITSML is an industry initiative to provide open, non-proprietary, standard interfaces for technology and software that monitor and manage wells, completions and workovers.The WITSML standard, started in 2000, aims at reducing the costs and minimizing the risks of conflicts and conversions required to provide a consistent repository and real-time view of LWD (logging-while-drilling) / MWD (measurement-while-drilling) output systems, which is normally run in a heterogeneous environment of vendors and solutions.
All data types (such as reports, logs, spreadsheets and more) may be uploaded by anyone with the correct access rights using a web browser from anywhere in the world to a server that is easily accessible even from a remote location (production platform, drilling rig, seismic vessel or overseas office). The power of WITSML comes from unifying the data representation among multiple vendors; however, it does not address the integration issue. With multiple data sources from different service providers, it becomes vital that a comprehensive access point is provided. Features

Felixwitsml Automatically aggregates, distributes and manages real-time data, files, reports, and other communications from the electronic drilling recorder, LWD contractor, mud loggers, fluid engineers, and all other vendors and service companies - and distributes this information to any location within your organization.
Felix W ITSML Se rver is the core system in the systems suite, with the XMLdatabase technology it fully supports WITSML 1.3.1 API standard and data types.
Rig-Aggregate It plays the role of interface between rig sensors, data acquisitive equipments and WITSML Server. It collects many types of wellsite data based on WITSML protocol and other well known industry standards such as LAS, LIS,WITS0, NMEA, ASCII, OPC, ODBC etc, also a convenient console is provided to allow operator to input data if necessary.
Rig-Server Rig-server is designed to store, manage, serve and distribute data collected by multiple rig or other WITSML-based systems.
Rig-View Felixwitsml offers an integrated platform to disply LWD/MWD/ Mudlogging/ Lithology/Well stimulation/Drilling parameters/UBD/ Wire line data in real-time. Logs can be viewed as graphic and text based. Each user can specify the log header settings based on their own experiences. Once it’s set up, the settings will be remembered for that user.
Rig-Analyze The analyzer monitoring the performance and to control the quality of data and also perform calculations in real-time using data from multiple historical and real timedata sources. The analysis includes drilling optimization,fracture gradient calculations, Pore pressure calculations, Torque & Drag Analysis While Drilling, True Vertical Depth, Hydraulic Analysis While Drilling and etc.

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© 2010 Felix Technology Inc.

Keywords: Drilling, publisher

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Many of these utilize the emerging standards for XML which we enable the exchange of data between different hardware platforms and between multiple database systems. Services Felix petroleum is actively involved in the development of several innovative and modern systems.