A significant factor in each case is neither project would be economic without utilizing horizontal drilling technology. This seems to represent a continuing trend in the oil and gas industry.
Pioneer Natural Resources updates Texas, ANS drilling
By OGJ editors
HOUSTON, June 10 -- Pioneer Natural Resources Co., Dallas, completed its first horizontal well in the Eagle
The Friedrichs Gas Unit No. 1 well, drilled in Dewitt County, Tex., initially flowed 3.7 MMcfd of gas equivalent, including 2.7 MMcfd of natural gas and 160 b/d of condensate, after partially completing only five stages of a planned eight-stage completion.
Mechanical problems in the original lateral required a sidetrack with a modified well path that reduced the well’s exposure to the main reservoir section in the brittle shale at the base of the Eagle Ford formation. Pioneer estimates only two stages of the fracture stimulation, representing less than 500 ft of the 3,000-ft lateral, penetrated the brittle shale and are contributing to gas production.
Scott Sheffield, Pioneer’s chairman and chief executive, said, “We have drilled more than 150 wells through the Eagle Ford shale as we developed the deeper
At Pioneer’s Oooguruk project on Alaska’s North Slope, operations are under way to drill four horizontal laterals in the Nuiqsut formation during the second and third quarters. Two will be fracture-stimulated producing wells, and two will be water-injection wells.
The first water-injection well was completed and is being produced temporarily to measure the unstimulated productive capability of the Nuiqsut formation. It was tested initially at 2,500 b/d of oil and was put on production at a stabilized 1,000 b/d.
Initial production exceeded expectations, Sheffield said. Pioneer’s net production from Oooguruk was forecast to average 5,000 b/d in 2009, gradually increasing to 10,000-14,000 b/d in 2011 as development drilling continues. “Later this year, we will reevaluate our production profile to incorporate higher than expected performance from our Kuparuk wells, early waterflood results, and the performance of our planned fracture-stimulated Nuiqsut wells,” Sheffield said.
Pioneer operates the Oooguruk project with 70% working interest, and Eni Petroleum US LLC holds a 30% working interest.