公开(公告)号：US12091946B2

公开(公告)日：2024-09-17

申请号：US16965159

申请日：2019-01-28

Applicant: LUFKIN LIFT SOLUTIONS, LLC.

Inventor： Chinmoy Nath ,  Christopher Valenzuela

IPC: E21B43/12 ,  B01D35/02 ,  E21B43/08

CPC classification number: E21B43/086 ,  B01D35/02 ,  E21B43/121 ,  E21B43/127 ,  B01D2201/02 ,  B01D2201/4084

Abstract: A technique facilitates filtration of solids from a well fluid to during a pumping operation. The system may comprise a downhole pump, e.g. a downhole rod lift pump, having a pump housing through which a well fluid is moved during pumping of the well fluid. The pump housing is configured to receive a filter assembly which filters solids from the well fluid during pumping. The filter assembly may comprise a strainer having a filter section and a strainer bushing affixed to the filter section. The filter section may have a plurality of filter holes sized to aid in the filtration of solids. The filter assembly also may comprise a mechanical hold down having an interior sized to receive the filter section. An external bushing is secured to the mechanical hold down in a manner which holds the filter section within the mechanical hold down.

公开(公告)号：US11220881B2

公开(公告)日：2022-01-11

申请号：US16846002

申请日：2020-04-10

Applicant: Lufkin Lift Solutions LLC

Inventor： Brandon Zachry ,  Christopher Valenzuela ,  Michael Thompson

IPC: E21B33/129 ,  E21B33/124 ,  E21B43/12

Abstract: A production tool that can aid in the operation of a producing oil/gas well is provided. In use, the tool is connected to production tubing and disposed in a wellbore, for example, below a pump. The tool includes an anchoring body that anchors the production tubing to a casing lining the wellbore. The tool also includes one or more sealing elements that create a seal with the casing.