OTC.10: New while-drilling reservoir sampling tool can eliminate post-well wireline sampling, says Halliburton

Halliburton has successfully pilot-tested its GeoTap IDS fluid identification and sampling sensor during exploration drilling by BG Norge in the Norwegian sector of the North Sea.

Offshore staff

HOUSTON -- Halliburton has successfully pilot-tested its GeoTap IDS fluid identification and sampling sensor during exploration drilling by BG Norge in the Norwegian sector of the North Sea.

The tests were conducted aboard the Bredford Dolphin mobile rig while drilling the 34/5-1 S Blabaer well.

During a press conference at OTC 2010 on Monday, Halliburton LWD specialist Jim Wilson said the GeoTap sensor gives operators the option of sampling reservoir formation fluids during short stops in the drilling process with the tool placed in the LWD assembly. This can replace or back up conventional wire-based sampling programs that add to rig time costs and to well risk by requiring a separate trip in the hole.

“This revolutionary tool can significantly reduce the industry’s requirement for time consuming post-well wireline sampling,” Wilson said.

The GeoTap sensor is ideal for high-cost drilling environments such as deepwater samples within just hours of drilling the formation instead of days, reducing the likelihood of borehole damage and producing a less contaminated sample. This helps operators to characterize fluid variability quickly, which is often an indicator of reservoir compartmentalization.

The tool can potentially improve efficiency and deliver cost savings to operators, Wilson noted, to optimize wellbore placement and achieve maximum production over the life of the reservoir.

5/3/2010

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