Roxi Tackles Stuck Pipe Issue with Side Track
Kazakhstan-focused Roxi Petroleum said that issues with pipes supplied to it for the drilling of its Deep Well A5 on its flagship BNG asset provide it with an opportunity to deal with a stuck pipe at the bottom of the well.
Deep Well A5 was spud in July 2013 and drilled to a total depth of 14,575 feet. Core sampling revealed the existence of a gross oil-bearing interval of at least 345 feet from 14,210 feet. At the end of June, Roxi had equipment on site in order to conduct a 30-day test but pipes required for the work did not pass the on-site inspection and replacement pipes have now been ordered.
Roxi said that it now plans to get around the stuck pipe at the bottom of the well by drilling a side-track around the well from a depth of 13,125 feet. The work is expected to take one month to complete.
Meanwhile, Roxi's Deep Well 801 – located approximately five miles from Deep Well A5 – has been drilled by Sinopec to a total depth of 16,570 feet in the Lower Carboniferous layer. The well has so far revealed a potentially oil-bearing interval extending 328 feet, although pressure and temperature data encountered here indicate that this is unlikely to be connected to the Deep Well A5 reservoir.
Roxi Chairman Clive Carver commented in a company statement:
"While we would have much preferred to know the results from a 30-day well test before sidetracking Deep Well A5 the failure of the pipes supplied provided an opportunity to deal once and for all with the stuck pipe at the bottom of the well. Once the sidetracking has been completed we plan to start a 90-day test."
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