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System and Method for Cleaning a Production Tubing

  • US 20190316443A1
  • Filed: 12/13/2017
  • Published: 10/17/2019
  • Est. Priority Date: 12/22/2016
  • Status: Active Grant
First Claim
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1. Method of cleaning a production tubing (10) in a producing petroleum well, the method comprises steps of:

  • providing a collection tool (100) configured for both selectively collecting debris (90) while residing downhole to obtain collected debris (92) as well as selectively releasing the collected debris (92) while residing downhole;

    lowering said collection tool (100) to a specific location (99) at a certain depth into the production tubing (10) of the producing petroleum well where there is at least a partial choking of a local production flow due to accumulated debris (90) deposited on the production tubing (10);

    collecting said accumulated debris (90) with the collection tool (100) to obtain collected debris (92);

    pulling said collection tool (100) to a production zone (25) of the production tubing (10) or downstream of said production zone (25) having enough production flow during production to ensure a lifting capacity for the collected debris (92), andreleasing said collected debris (92) into the production tubing (10) to obtain released debris (94) being lifted by the production flow (35) when production is running.

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