Rigonomics: Modern HDD Contractor Tools For Drilling Rock

By Jeff Griffin, Senior Editor | June 2011 Vol. 66 No. 6

“The rock in Branson was extremely hard,” he added. “We did test breaks at various locations through the project and more than half the rock was more than 20,000 psi. In some areas rock was 31,000 psi on the hardness scale. With our equipment, we drill quickly through rock of 5,000 to 6,000 psi. As it gets harder, production is reduced.

“Our goal going in was to achieve a shot a day with the two JT3020s and one every two days with the JT4020, and on most days we were able to meet those goals. Production would have been double that in good conditions.”

Three hundred bores were made, ranging in length from 80 to approximately 1,320 feet. The average bore was approximately 330 feet.

“The mechanical system uses much less drilling fluid than mud motors would require,” said Libby. “Frac outs were reduced, and we believe there is less downtime with this equipment.”

Universal HDD, (847)955 0050, http://unihdd.com/
Ditch Witch, (800) 654-6481, www.ditchwitch.com
Vermeer Corp., (888) 837-6337, www.vermeer.com
H & H Enterprises Inc., (440) 293-8911, www.handhent.com
Laney Directional Drilling, (281) 540-6615, www.laneydrilling.com
Southern Diversified Technologies, (770) 554-4011, www.sdt-1.com
Woods Construction Company, (719) 213-2098, www.woodsconstructionco.com
American Directional Technology (Adtech), 405-449-3362, http://patriotpdm.com
Sharewell, (800) 637-6461 or (713) 983-9818, www.sharewell.com