Search International and National Patent Collections

1. (WO2017063051) HYDRAULIC ANCHORING ASSEMBLY FOR INSERTABLE PROGRESSING CAVITY PUMP

Pub. No.:    WO/2017/063051    International Application No.:    PCT/AU2016/050972
Publication Date: Fri Apr 21 01:59:59 CEST 2017 International Filing Date: Sat Oct 15 01:59:59 CEST 2016
IPC: E21B 23/01
E21B 4/18
Applicants: INFLATABLE PACKERS INTERNATIONAL PTY LTD
Inventors: FORD, Francis John Guillena
Title: HYDRAULIC ANCHORING ASSEMBLY FOR INSERTABLE PROGRESSING CAVITY PUMP
Abstract:
A hydraulic anchoring assembly (10, 10a), and method of its use, for anchoring and sealing an insertable progressing cavity pump on rods in a well. The assembly (10, 10a) has one or more cup seals (42, 42a), upstream of one or more inflatable packers (14, 14a) upstream of one or more hydraulic slips (16). The cup seals (42, 42a) provide a pressure differential for inflation of the upstream most inflatable packer (14), which in turn provides a pressure differential for the downstream inflatable packer(s) (14a) to inflate to produce a fluid tight seal between the insertable progressing cavity pump and the well. In highly deviated wells the up seals (42, 42a) can be used to pump the hydraulic anchoring assembly (10, 10a) down the well in situations where the rods would otherwise buckle.