Energy Growth Fuels Large HDD Rig Boom

By Jeff Griffin, Senior Editor | September 2012, Vol. 67 No. 9

Downhole tools: 9 7/8-inch TCI bit for pilot hole; 24-inch TCI hole openers for backreaming.

Guidance: The pilot hole was guided by a Tensor wireline tool and TruTracker surface grid system.

Comments: Said Lamb: “This crossing was exceptionally challenging due to a weak and open formation that drilling mud followed for over 500-feet horizontally and surfaced at the edge of a creek bed. We tripped out of the hole several times to insure the hole was clean and ended up using loss circulation material (LCMs) to reduce the volume of fluid lost horizontally.”

Project 2: Road and creek crossing to install 1,760 feet of 16-inch steel pipe.

Elevation changes: Entry to exit, 100 vertical feet; bottom to exit, 250 vertical feet.

Drill rig: Vermeer D330x500 developing 330,000 pounds of pullback.

Downhole tools: 9 7/8-inch TCI bit for pilot hole; 24-inch TCI hole openers for backreaming.

Guidance: The pilot hole was guided by a Tensor wireline tool with TruTracker surface grid system.

Comments: “The job was in a mountainous region subject to drastic fluctuations in weather due to proximity of the Atlantic coast,” Lamb said. “The set-up phase occurred during flooding caused by a hurricane and it affected fluid management and IR monitoring. The HDD installation was in the reaming stage during the flood, and there was an active IR in the dry part of the creek bed. The flooding required us to cease work operations for a week until the stream returned to its normal level.”

Project 3: Railroad and creek crossing to install 1,800 linear feet of 24-inch steel pipe. Five-hundred feet of the bore path contained cobble and boulders.

Elevation changes: Entry to exit, 45 vertical feet; bottom to exit, 130 vertical feet.

Drill rigs: Vermeer D330x500 developing 330,000 pounds of pullback.

Downhole tools: 9 7/8-inch TCI bit for pilot hole; 24- and 36-inch hole openers.

Guidance: The pilot hole was guided by a Tensor wireline tool with TruTracker surface grid system.