Invention Grant
- Patent Title: Hot water recycle for paraffin cleanout
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Application No.: US15234677Application Date: 2016-08-11
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Publication No.: US10161224B2Publication Date: 2018-12-25
- Inventor: Dennis Ray Wilson
- Applicant: CONOCOPHILLIPS COMPANY
- Applicant Address: US TX Houston
- Assignee: ConocoPhillips Company
- Current Assignee: ConocoPhillips Company
- Current Assignee Address: US TX Houston
- Agency: Boulware & Valoir
- Main IPC: E21B37/06
- IPC: E21B37/06 ; E21B37/00 ; E21B37/08

Abstract:
Paraffin deposits from downhole tubing, pumps and valves are removed by hot water and recycling the hot water to allow continual intermittent cleaning throughout the lifespan of the well. Heated water travels down the hollow rod annulus, entering the hollow rod string through ports at the bottom, temporarily heating both strings to melt and mobilized paraffin to enable intermittent pumping paraffin and debris to surface.
Public/Granted literature
- US20170044871A1 HOT WATER RECYCLE FOR PARAFFIN CLEANOUT Public/Granted day:2017-02-16
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