20240035359. WELLBORE CASING SCRAPER simplified abstract (Halliburton Energy Services, Inc.)

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WELLBORE CASING SCRAPER

Organization Name

Halliburton Energy Services, Inc.

Inventor(s)

Stephen Michael Greci of Carrollton TX (US)

Michael Linley Fripp of Singapore (SG)

Finn Gamble Mccarthy of Carrollton TX (US)

WELLBORE CASING SCRAPER - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240035359 titled 'WELLBORE CASING SCRAPER

Simplified Explanation

The abstract describes a controllable downhole scraper that includes a fluid reservoir with a movable pressure wall, a scraper blade, a sleeve, a restrictor, and a gas reservoir.

  • The fluid reservoir contains a first fluid and the pressure wall maintains a first pressure in the first fluid.
  • The scraper blade can move between a retracted and an extended position.
  • The sleeve is positioned on a tubular and can slide between a first position to engage the scraper blade and move it into the retracted position, and a second position to engage the scraper blade and move it into the extended position.
  • The sleeve can move between the two positions by reducing the first pressure in the first fluid.
  • The restrictor is fluidly coupled between the fluid reservoir and a pressure reservoir.
  • The gas reservoir, fluidly coupled to the first fluid, can selectively reduce the first pressure in the first fluid.

Potential applications of this technology:

  • Downhole scraping operations in oil and gas wells.
  • Cleaning and removing debris from wellbores and tubulars.
  • Maintenance and repair of downhole equipment.

Problems solved by this technology:

  • Efficient and controlled scraping of downhole surfaces.
  • Minimizing damage to wellbore and tubulars.
  • Preventing blockages and improving flow in oil and gas wells.

Benefits of this technology:

  • Improved wellbore and tubular cleanliness.
  • Enhanced operational efficiency and productivity.
  • Reduced downtime and maintenance costs.


Original Abstract Submitted

a controllable downhole scraper includes a fluid reservoir having a pressure wall positioned and movable within the fluid reservoir defining a first portion of the fluid reservoir including a first fluid. the pressure wall exerts a force on the first fluid to maintain a first pressure. a scraper blade is movable between a retracted and an extended position. a sleeve is positioned on a tubular and slidable between a first position engaging the scraper blade to move into the retracted position, and a second position engaging the scraper blade to move into the extended position. the sleeve is configured to move between the two positions through a reduction in the first pressure in the first fluid. a restrictor is fluidly coupled between the fluid reservoir and a pressure reservoir. a gas reservoir, fluidly coupled to the first fluid, is selectively operable to reduce the first pressure in the first fluid.