| 摘要 |
An apparatus and method for separating gas and solids from well fluids in a borehole including a gas-solids separator (34) having an outer tubular membe r (44) and an inner flow tube (46). A gas spiral housing (62) has a gas spiral (66) at its lower end positioned beneath a plurality of perforations (60) in tubular member (44). A solid spiral (70) is positioned below upper gas spiral (66) and a swirl chamber (71) is provided between gas spiral (66) and solids spiral (70). Gas separated by gas spiral (66) flows upwardly in inner gas annulus (72) to gas reservoir (74) for discharge by ba ll check valve (76). The solids are separated by solids spiral (70) and the clean liquid after the gas and solids have been separated flows upwardly in flow tube (46) and pipe string (14) from lower swirl chamber (80). An embodiment shown in Figure 5 provides a shroud (27A) about a downhole motor (20A) to effect cooling of motor (20A).
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