US 12,378,826 B2
Wireline head with mechanical cable release
William Rohr, Sugar Land, TX (US)
Appl. No. 18/836,525
Filed by Schlumberger Technology Corporation, Sugar Land, TX (US)
PCT Filed Apr. 18, 2023, PCT No. PCT/US2023/018986
§ 371(c)(1), (2) Date Aug. 7, 2024,
PCT Pub. No. WO2023/205178, PCT Pub. Date Oct. 6, 2023.
Claims priority of provisional application 63/363,129, filed on Apr. 18, 2022.
Prior Publication US 2025/0129675 A1, Apr. 24, 2025
Int. Cl. E21B 17/02 (2006.01); E21B 17/06 (2006.01)
CPC E21B 17/023 (2013.01) [E21B 17/06 (2013.01)] 18 Claims
OG exemplary drawing
 
10. A method for releasing a cable from a wireline head, the method comprising:
providing the wireline head, the wireline head having a centerline axis, the wireline head comprising:
an outer cone;
an inner cone configured to trap a portion of a cable between the inner cone and the outer cone;
a separable member having a length oriented parallel to the centerline axis of the wireline head, the separable member being positioned within the wireline head and configured to separate at a predetermined position along its length when subjected to a predetermined tensile load;
a mechanical link positioned within the wireline head, wherein the mechanical link is configured to trap the inner and outer cones during normal operation and to release the inner and outer cones based on the separable member separating, such that the cable is freed from the wireline head; and
a retaining component positioned to retain the outer cone and inner cone within the wireline head after being released by the mechanical link; and
applying a tensile load to the cable, wherein the tensile load is sufficient to separate the mechanical link; and
retrieving the cable from the wireline head.