The WinDART module provides a direct, central collection point for real-time drilling data at the rig, including MWD, LWD, drilling instrumentation and mudlogging. WITS (Wellsite Information Transfer Specification) Level 0 is used to collect standard or custom data records across a network using TCP/IP or via the traditional point to point RS-232 serial interface.

Data can be processed and stored over depth, lagged depth and time based intervals. The stored data is instantly available for display and distribution to all connected users and Gravitas applications. Thus the process of collecting data at the well-site is simplified and time is saved. For example, if Winlog for Gravitas references a table being written by WinDART it will be informed of the new data and this will be shown on the chart with no user interaction.

Real-time data may be acquired from most typical service providers at the wellsite, including MWD, LWD, mudlogging and rig acquisition systems.

The 25 standard WITS records may be collected and stored in a target location within the Gravitas database. In addition any custom WITS records and items may also be easily defined to interface with the ever changing parameters of modern downhole tools.

Gravitas also supports the WITSML data transfer standard.

The raw WITS data received from the sending system may be averaged over the appropriate depth, time or lagged depth intervals. WinDART allows multiple intervals to be computed simultaneously from the same data source.

The type of calculation may be specified for each channel. Simple averaging, minimum, maximum, etc may be specified. For example from a single ROP source channel the average, minimum and maximum may be calculated over the interval.

Channel and group settings are remembered to simplify set-up.

WinDART has its own lag calculation and monitor which may be used in conjunction with its Rig Activity Status device to lag values received in real-time from the WITS stream (e.g. gas data).