Author Topic: KOLA BOREHOLE  (Read 696 times)


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« on: March 16, 2017, 07:02:22 pm »
The Lone Star Producing Co. 127
- Bertha Rogers hole or well was an oil-exploratory hole drilled in Washita County, Oklahoma in 1974, and was formerly the world's deepest hole until in 1979 surpassed by the Kola Superdeep Borehole, dug by the USSR.
- It took Lone Star a little over a year and a half to reach 31,441 feet (9,583 m), a depth of almost six miles. During drilling, the well encountered enormous pressure almost 25,000 psi (172,369 kPa). No commercial hydrocarbons were found before drilling hit a molten sulfur deposit (which melted the drill bit). The well was plugged back and completed in the Granite Wash from 11,000 to 13.200 feet as a natural gas producer.

Anadarko Basin cross section

« Last Edit: November 27, 2017, 08:46:43 pm by Admin »