The initial target depth was set at m ( ft). On 6 June 1979, the world depth record held by the Bertha Rogers hole in Washita County, Oklahoma at m ( ft) was broken. In 1983, the drill passed m ( ft), and drilling was stopped for about a year to celebrate the event. This idle period may have contributed to a break-down on 27 September 1984: after drilling to m ( ft), a m ( ft) section of drillpipe twisted off and was left in the hole. Drilling was later restarted from m ( ft). The hole reached m ( ft) in 1989. In that year the hole depth was expected to reach m ( ft) by the end of 1990 and m ( ft) by 1993. However, due to higher than expected temperatures at this depth and location, / instead of expected / , drilling deeper was deemed unfeasible and the drilling was stopped in
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| - The initial target depth was set at m ( ft). On 6 June 1979, the world depth record held by the Bertha Rogers hole in Washita County, Oklahoma at m ( ft) was broken. In 1983, the drill passed m ( ft), and drilling was stopped for about a year to celebrate the event. This idle period may have contributed to a break-down on 27 September 1984: after drilling to m ( ft), a m ( ft) section of drillpipe twisted off and was left in the hole. Drilling was later restarted from m ( ft). The hole reached m ( ft) in 1989. In that year the hole depth was expected to reach m ( ft) by the end of 1990 and m ( ft) by 1993. However, due to higher than expected temperatures at this depth and location, / instead of expected / , drilling deeper was deemed unfeasible and the drilling was stopped in
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| abstract
| - The initial target depth was set at m ( ft). On 6 June 1979, the world depth record held by the Bertha Rogers hole in Washita County, Oklahoma at m ( ft) was broken. In 1983, the drill passed m ( ft), and drilling was stopped for about a year to celebrate the event. This idle period may have contributed to a break-down on 27 September 1984: after drilling to m ( ft), a m ( ft) section of drillpipe twisted off and was left in the hole. Drilling was later restarted from m ( ft). The hole reached m ( ft) in 1989. In that year the hole depth was expected to reach m ( ft) by the end of 1990 and m ( ft) by 1993. However, due to higher than expected temperatures at this depth and location, / instead of expected / , drilling deeper was deemed unfeasible and the drilling was stopped in 1992. With the expected further increase in temperature with increasing depth, drilling to m ( ft) would have meant working at a projected / , at which the drill bit would no longer work.
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![[RDF Data]](/fct/images/sw-rdf-blue.png)