| 摘要 |
<p>A method and apparatus for drilling a wellbore in the earth from a location in a body of water wherein the drilling operation generates a substantial amount of a mixture of solid drilling cuttings, water, and at least one hydrocarbonaceous oil, and wherein the water and oil are removed from the solid drilling cuttings by means of a two-stage heat treatment recovering firstly the water and secondly the oil, each by vaporisation, so that the cuttings are put into a condition in which they can be disposed of in the body of water or elsewhere without adverse effects.</p> |
