SYSTEMS AND METHODS FOR INSTALLING A MAXIMUM RANGE ANCHOR IN A WELLBORE Russian patent published in 2021 - IPC E21B23/01 E21B17/10 

FIELD: oil and gas production.

SUBSTANCE: group of inventions relates to the device, systems and methods of installing an anchor in the wellbore for accurate positioning of downhole tools. The system for ensuring the installation of a multiple use self-centering anchor in a wellbore includes an anchor of the maximum range of action. The anchor contains the first retractable assembly designed to engage the wellbore. The first retractable unit contains a first set of levers connected to the first yoke, a second set of levers connected to the second clamp, and multiple bedplates. Each bedplate out of multiple bedplates is connected on the first side to the first set of levers and connected on the second side to the second set of levers. Each bedplate contains a retainer connected radially to the outer surface and designed for reliable engagement with the wellbore. The tightener rod is rigidly connected to the first clamp and is slidably connected with the second clamp. The forced thrust in the axial direction reduces the distance between the first clamp and the second clamp and forces the first and second sets of levers to move the set of bedplates radially towards the wellbore. A method for performing work in the face zone of the wellbore and a system for reliable engagement with the wellbore are claimed.

EFFECT: technical result is achieved of improving the efficiency and accuracy of downhole tool placement in the wellbore.

20 cl, 8 dwg