| 摘要 |
<p>An apparatus for separating solids from solids laden drilling fluid, the apparatus comprising a shale shaker and a screen assembly (300), the shale shaker comprising a base and a basket (30) isolated from said base, a flow tray (301) arranged in said basket (30) for directing screened drilling fluid,the screen assembly (300) comprising at least one layer of screening material (299), a screen support (340) having a perimeter with at least one support point within said perimeter, characterised in that the flow tray (301) comprises at least one raised portion (313a-313e) to support said screen assembly (300).Also disclosed is an apparatus for separating solids from solids laden drilling fluid, the apparatus comprising a shale shaker and a screen assembly (300), the shale shaker comprising a basket (30) having side supports (109,110) and at least one intermediate support (313a-313e) arranged between said side supports (109,110), the screen assembly (300) comprising a screen support (340) supporting at least one layer of screening material (299), the screen support (340) having at least two sides (352,353) supported by said side supports (109,110) and at least one support member (358) between said sides for engaging with said at least one intermediate support (313a-313e), characterised in that the screen support (340) further comprises a tapered surface (357) and said at least one intermediate support (313a-313e) has a tapered support surface (321,322), such that, in use, the tapered surface (357) and the tapered support surface (321,322) abut.</p> |
