- Patent Title: Multiple cycle deployable and retractable downhole scraper or brush
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Application No.: US17835765Application Date: 2022-06-08
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Publication No.: US11933141B2Publication Date: 2024-03-19
- Inventor: David Allen Dockweiler
- Applicant: Halliburton Energy Services, Inc.
- Applicant Address: US TX Houston
- Assignee: Halliburton Energy Services, Inc.
- Current Assignee: Halliburton Energy Services, Inc.
- Current Assignee Address: US TX Houston
- Agency: C. Tumey Law Group PLLC
- Agent Scott Richardson
- Main IPC: E21B37/04
- IPC: E21B37/04 ; E21B23/00 ; E21B23/04

Abstract:
Systems and methods of the present disclosure relate to wellbore scraping operations. A method comprises running a scraper tool into a wellbore with blades retracted; dropping a ball into an expandable seat of the scraper tool to build pressure; pumping fluid into the scraper tool to deploy a mandrel to compress a spring to rotate a j-slot to a second position from a first position to extend the blades; building pressure until the ball is released from the expandable seat; and moving the mandrel to a third position on the j-slot to lock the extended blades in place.
Public/Granted literature
- US20230399921A1 Multiple Cycle Deployable and Retractable Downhole Scraper or Brush Public/Granted day:2023-12-14
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