Methods and systems for drilling boreholes
AssigneeFlanders Electric, Ltd.
InventorsEdward Curtis Stacy, II, Antonio Garcia
Life of this patent
Estimating the term…
Abstract
A system for drilling a borehole according includes a drill rig and a control system. The control system receives information from the drill rig that relates to at least one drill parameter. The control system processes information relating to the drill parameter, determines whether the drill parameter is within a predetermined specification for the monitored drill parameter, chooses a hole defect mitigation routine based on the monitored drill parameter when the monitored drill parameter is outside the predetermined specification, and controls the drill rig to implement the chosen hole defect mitigation routine.
Claims13
A method for collaring a borehole, comprising:
- performing a first phase collaring operation from a surface start to a point at which a drill bit reaches a dynamically determined collaring depth or a maximum collaring depth at a hole collar bottom;
- and
- performing a second phase collaring operation to form a hole collar, the second phase collaring operation, comprising:
- retracting the drill bit until the drill bit is above the surface;
- activating a water injection system during the retracting of the drill bit and deactivating the water injection system when the drill bit is above the surface.
A method for collaring a borehole, comprising:
- performing a first phase collaring operation from a surface start to a point at which a drill bit reaches a dynamically determined collaring depth or a maximum collaring depth at a hole collar bottom;
- and
- performing a second phase collaring operation to form a hole collar, the second phase collaring operation, comprising:
- retracting the drill bit until the drill bit is above the surface;
- activating a water injection system during the retracting of the drill bit;
- and
- activating an air injection system when the drill bit is above the surface.
A method for collaring a borehole, comprising:
- before drilling, preparing a surface location to receive a drill bit by removing any obstructions to a hole collar opening at the surface location;
- performing a first phase collaring operation beginning at the surface location, the first phase collaring operation, comprising:
- dynamically determining a collaring depth at a hole collar bottom;
- and
- conducting the first phase collaring operation until the drill bit reaches the collaring depth at the hole collar bottom, the first phase collaring operation producing cuttings around the hole collar opening;
- and,
- performing a second phase collaring operation, the second phase collaring operation, comprising:
- retracting the drill bit from the hole collar bottom;
- activating a water injection system during the retracting of the drill bit;
- continuing the retracting until the drill bit is above the surface location;
- deactivating the water injection system when the drill bit is above the surface;
- and
- moving cuttings away from the hole collar opening when the drill bit is above the surface location.
Dependencies are inferred from the claim text.