| 摘要 |
<p>A pump seating nipple is provided for engagement with a downhole pump in order to seal and anchor the downhole pump relative to the pump seating nipple, the downhole pump being a reciprocating or rotary pump. The pump seating nipple includes a nipple sealing component for cooperating with a complementary pump sealing component of the downhole pump to provide a seal device, a nipple axial force anchoring component for cooperating with a complementary pump axial force anchoring component of the downhole pump to provide an axial force anchor device, and a nipple rotational force anchoring component for cooperating with a complementary pump rotational force anchoring component of the downhole pump to provide a rotational force anchor device, Further, a system is provided for connecting a rotary downhole pump with the pump seating nipple, the system comprising the rotational force anchor device.</p> |
