In its December 2019 newsletter the Open Subsurface Data Universe explains the evolving architecture of the Shell-backed initiative that is set to transform upstream data management, access and software development. OSDU Release 2 adds seismic data to the well data capability of R1. R2 is also a ‘brand new code base’, based on the Schlumberger OpenDES open data ecosystem that provides cloud-independence across the Microsoft, Amazon and Google clouds. The seismic capability comes from the incorporation of Bluware’s OpenVDS* code along with support for Schlumberger Petrel’s ZGY compressed seismic format. The common code base will be the ‘foundation of all new development and will maintain functionality across all cloud platforms’. Release 3, scheduled for early 2020, will be a deployment-ready system with added services, schemas and optimized storage of logs and seismic data, accessible on-demand via an API. R3 will allow non-developers to ‘deploy an instance’.
On the subject of APIs, OSDU now distinguished between ‘generic’ and ‘domain’ APIs. The latter optimize data access for applications with ‘semantics’ that are not available in the generic API. The ‘generic’ APIs are to stay, providing data-neutral support for accessing metadata and content that are independent of the underlying structure for ‘data oriented’ users. The next OSDU ‘face to face’ meetings are scheduled for March 23-24 (Amsterdam) and April 20-23 (Houston). Track OSDU development on the TOG OSDU Wiki.
* Bluware OpenVDS is an open source edition of Bluware’s commercial VDS software. The open source version exposes the Bluware APIs and lossless seismic data compression format. The full commercial version adds GPU functionality, write with compression and support.
Comment: One of OSDU’s overarching principles is for the decomposition of data into microservices to facilitate a shift from the monolithic applications of the past to lightweight apps. It is a little ironic then that one of the first deliverables (ZGY support) targets Petrel, a behemoth amongst monoliths.
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