Invention Grant
- Patent Title: Lead-free pinscreen imprint device, system, and method for retrieving at least one imprint of a topmost surface of a fish located in a wellbore
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Application No.: US17462489Application Date: 2021-08-31
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Publication No.: US11939861B2Publication Date: 2024-03-26
- Inventor: Saud Askar Al-Hajri
- Applicant: SAUDI ARABIAN OIL COMPANY
- Applicant Address: SA Dhahran
- Assignee: SAUDI ARABIAN OIL COMPANY
- Current Assignee: SAUDI ARABIAN OIL COMPANY
- Current Assignee Address: SA Dhahran
- Agency: Osha Bergman Watanabe & Burton LLP
- Main IPC: E21B47/098
- IPC: E21B47/098 ; G01B11/24

Abstract:
A lead-free pinscreen imprint device for retrieving at least one imprint of a topmost surface of a fish located in a wellbore may include a housing with a central aperture that extends along a section of a central axis thereof. The lead-free pinscreen imprint device may include a pinscreen portion disposed in the housing. The pinscreen portion may include various pins that are disposed along a vertical axis that is parallel to the central axis. The pinscreen portion may include an imprint surface that faces in a downward direction and a scanning surface that faces in an upward direction. The lead-free pinscreen imprint device may include a three-dimensional (3D) laser image scanner disposed in the housing at a location that is immediately above the pinscreen portion. The 3D laser image scanner may be configured to scan the scanning surface and identify any depth changes in the scanning surface.
Public/Granted literature
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