What is WITSML?

Wellsite information transfer standard markup language (WITSML) is an open standard for defining and transmitting technical drilling data between disparate systems and companies in the E&P petroleum industry.

WITSML is a technology which allows previously incompatible or proprietary systems to interoperate and share data.

The WITSML standard is being developed and maintained by Energistics, a non-profit consortium designed to develop and deploy open data exchange standards in the oil and gas industry.

What is ETP?

Energistics Transfer Protocol (ETP) is a data exchange specification that enables the efficient transfer of data between applications and systems. It defines a data streaming mechanism so that data receivers do not have to poll for data and can receive new data as soon as it is available from a data provider.

ETP is defined as about 50 distinct messages that can run asynchronously between a client and a server, all implemented on top of the WebSocket protocol. Messages are serialized over the connection using the Apache Avro standard. Model data is delivered as a combination of XML and compressed bulk data according to the DEFLATE (GZip) standard.

ETP is the transportation protocol of the EnergyML standards from Energistics. ETP can deliver both WITSML 1.* and WITSML 2.0.

What is JWitsml?

JWitsml is a Java library for accessing data on WITSML servers. The goal of the JWitsml project is to support WITSML client software with WITSML data through a clean, complete, well documented, efficient and extremely simple to use Java programming interface.

JWitsml supports both the WebSocket/ETP protocol and the older HTTP/Soap protocol.

There exists many tools for browsing WITSML data, but in order to get hold of the actual data for performing advanced computations or create custom applications, a library like JWitsml is required.

JWitsml can be used for:

  • Creating full-scale, multi-threaded, real-time E&P applications
  • Creating real-time geosteering applications
  • Creating advanced WITSML viewers for browsing remote WITSML servers
  • Creating WITSML real-time apps for mobile units
  • Accessing real-time log data for visualization and QL-computations
  • Moving data between WITSML databases
  • Moving data between WITSML and corporate ER databases
  • Populating WITSML 2.0 databases from WITSML 1.*
  • Populating WITSML servers with log data converted from LAS, LIS, DLIS, BIT, CSV, Excel etc.
  • Extracting real-time log data for LAS, LIS, DLIS, BIT, CSV or Excel export
  • Report drilling information to the authorities
  • Creating real-time drilling or logging simulators
  • Creating WITSML server validation, benchmarking and performance test applications
  • Performing unit conversion between more than 2.300 petroleum related units

JWitsml supports WITSML version 1.3, 1.4 and 2.0