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GE system improves drilling performance

Oilfield Technology,

The latest system from GE improves drilling performance through real-time shock and vibration measurement.

To help customers reduce operational costs and to increase overall productivity, GE has launched the Directive™ system, an enhanced version of a key tool in its Measurement While Drilling (MWD) range of downhole drilling equipment.

Optimised drilling

The Directive system adds real-time shock and vibration measurement capabilities to GE Oil & Gas’ Tensor Directional Module. It is designed to help customers optimise drilling penetration rates by enabling adjustments and corrections to be made quickly based on real-time data. Additionally, real-time management of downhole vibrations typically reduces equipment damage, consequently helping to avoid potential well-drilling delays and reduce overall costs.

Shock and vibration measurements

“GE has been providing precision directional drilling instruments for many years, including high-quality, reliable downhole systems for directional surveying and navigation. The design and development of the Directive™ sensor package was driven by ever-increasing customer requirements for improved reliability and real-time shock and vibration measurements at high temperature,” commented James Junker, global business leader - GE Downhole Technology for GE Oil & Gas.

“Such measurements aren’t new to the industry, but the Directive system design features inherent calibration stability for a far longer duration than other commercially available products, leading to a lower cost of ownership for this tool versus competitive products,” Junker added.

Drill bit location

Optimal placement of directional and horizontal wells within a reservoir requires knowing the precise location of the drill bit and the orientation of its tool face at every moment during the drilling process. The drill bit’s location is measured by downhole gravity and magnetic sensors, which are used to perform directional surveys that take into account inclination, azimuth and drill bit tool face orientation. The survey information is then transmitted uphole either through mud pulse telemetry or via electromagnetic waves. GE’s Directive sensor package provides critical real-time measurements designed to enable the drill bit to be oriented in a preferred direction quickly.

Directive system

The Directive system has a simple and compact design with fewer components and an improved layout for a long service life at an operating temperature of up to 175°C. Calibration stability of the sensor package under harsh drilling conditions is now engineered for longer intervals. The Directive system has greater processing power than the Tensor Directional Module and features a simplified board design, which packs the processor, four channels of detectors, an A/D converter, two MEMS accelerometers and 32 MB of memory onto a reduced number of boards.

Adapted from press release by Katie Woodward

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