The first relief well being drilled to allow the gushing BP well in the Gulf of Mexico to be capped is only 300ft from its target depth, having sunk to a total of about 17,710ft through water and rock, the US authorities said on 7 July.
美國有關政府部門7月7日表示，為封堵英國石油(BP)在墨西哥灣噴涌不已的油井而鉆造的第一口減壓井，已經穿過海水和巖層，潛至約17710英尺的深度，距離目標深度只剩300英尺。
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