Alignable guidance device for casing entry milling and cementing operations
AssigneeScientific Drilling International, Inc.
InventorsCarsten FREYER, Gerald HEISIG, MARIO SIMANOWSKI
Life of this patent
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Abstract
An alignable guidance device includes a tube section and a casing milling shoe within the tube section, a pre-contoured tube within the casing milling shoe that terminates in an exit point in the tube section, the pre-contoured tube exiting the tube section at an exit angle of between 0° and 45°. The alignable guidance device also includes guidance sensors within the tube section and a guidance device EM communications system within the tube section, the guidance device EM communications system in electrical communication with the guidance sensors.
Claims18
An alignable guidance device, comprising:
- a tube section,the tube section including a lower tube portion and an upper tube portion, the lower tube portion having an end plate;
- a casing milling shoe within the tube section, a pre-contoured tube within the casing milling shoe that terminates in an exit point in the tube section;
- guidance sensors within the end plate of the tube section proximate the exit point;
- and
- a wireline transceiver positioned within the lower portion of the tube section in electrical connection with the guidance sensors and the surface of the earth.
A system for intercepting an existing well, comprising:
- a run-in string;
- a hydraulic release tool, the hydraulic release tool connected to the run-in string;
- an alignable guidance device, the alignable guidance device connected to the hydraulic release tool, the alignable guidance device including:
- a tube section;
- a casing milling shoe within the tube section;
- a pre-contoured tube within the casing milling shoe that terminates in an exit point in the tube section;
- and
- guidance sensors within the tube section;
- a wireline transceiver positioned within the tube section in electrical connection with the guidance sensors and a surface of the earth.
Dependencies are inferred from the claim text.