LIOS: DTS WITSML Data Interface

LIOS Technology is the global leader in the development and supply of state of the art frequency domain based distributed temperature monitoring systems (DTS). The LIOS Technology OTS product line comprises a range of real-time, fibre-optic based linear temperature measuring devices.

With its innovative solutions for optical in-well permanent monitoring, LIOS helps its customers to operate oil fields more efficiently. LIOS offers its DTS systems with integrated WITSML protocol converter, technologies to securely transmit data from well site and enable its integration into customized database structures for real-time field managment.

LIOS Technology is committed to the WITSML standards and continues to develop real-time data processing and optimization programs for use with WITSML protocols.

WITSML Contact Persons: Dino Simonits, Daan van Laar, Albrecht Dress, Malcolm Wildenauer

Dino Simonits
LIOS Technology GmbH - Linear Optical Sensors
Schanzenstrasse 6 - 20, 51063 Cologne, Germany
Telephone: +49 221 676 3200
Fax: +49 221 676 2069 
www.downhole-monitoring.com
info@downhole-monitoring.com

Notes:

Functional coverage is organized according to five kinds of product functionality with respect to the WITSML Standards: two kinds of client functions and three kinds of server functions. 

• A product may exhibit multiple kinds of functionality. 
• The terms client and server are used here exclusively with respect to the WITSML Server API interfaces. Clients issue requests to servers. Servers receive and respond to requests from clients. 
• Behaviors for products that do not use the WITSML Server API are classified in an analogous manner.

The five product classifications of WITSML functional coverage are:

• Client Products --
  1. WITSML Producer Client -- a product that generates or otherwise obtains data that is formulated as WITSML object instances and sent to a WITSML Server to be incorporated in that server's data population. Examples of such products include products that pick up real-time data from sensor devices, format it, and send it to a server; and products that extract data from data stores, format it, and send it to a server.
  2. WITSML Consumer Client -- a product that issues requests for data as queries of subscriptions to a WITSML Server and then receives data as query responses or subscription publications. Examples of such products include products that acquire data from a server, possibly reformat it, and delivery it to an application program or viewer utility.
  1&2. Products the exhibit combined Producer and Consume Client functions may be application programs that operate directly on a WITSML Server, such as a mudlogging application or a pore pressure analysis application.
  
• Server Products --
  3. WITSML Receiving Server -- a product that performs WITSML Server functions in general and, in particular, acquires data from external sources. Data acquisition may be through WITSML API interfaces or other mechanisms.
  4. WITSML Delivering Server -- a product that performs WITSML Server functions in general and, in particular, delivers data to external destinations. Data delivery may be through WITSML API interfaces or other mechanisms.
  5. WITSML Managing Server -- a product that performs WITSML Server functions in general and, in particular, supports requests from authorized client applications to augment (extend), modify, or delete (part or all) WITSML object instances. 
  3&4. The general understanding and expectation is that a product characterized as a WITSML Server supports both Receiving and Delivering Server functionality. 
  3&4&5. The addition of Managing Server functionality allows a WITSML Server product to do more than store and forward data, such as supporting data quality management client applications that help ensure the integrity and quality of data content in a Server data population.
  
• General Functions -- 
  6. Virtually all products associated with the WITSML Standards will issue and/or process WITSML Server General Functions to determine the capabilities and version of a server product.   

The product creates and storew WITSML XML files on a built-in flash disk. Data files are transmitted on demand to a remote consumer application. The product uses a custom TCP/IP protocol to optimize the data transfer and to save network bandwidth. Optional scure authentication and encryption of the transfer is available.

The product is fully tested in permanent operation at on and off-shore wells.