Abstract: An example method for control of a drilling assembly includes receiving measurement data from at least one sensor coupled to an element of the drilling assembly positioned in a formation. An operating constraint for at least a portion of the drilling assembly may be determined based, at least in part, on a model of the formation and a set of offset data. A control signal may be generated to alter one or more drilling parameters of the drilling assembly based, at least in part, on the measurement data and the operating constraint. The control signal may be transmitted to a controllable element of the drilling assembly.

Abstract: An example method for control of a drilling assembly includes receiving measurement data from at least one sensor coupled to an element of the drilling assembly positioned in a formation. An operating constraint for at least a portion of the drilling assembly may be determined based, at least in part, on a model of the formation and a set of offset data. A control signal may be generated to alter one or more drilling parameters of the drilling assembly based, at least in part, on the measurement data and the operating constraint. The control signal may be transmitted to a controllable element of the drilling assembly.

Abstract: A hydraulically powered, hose winding apparatus comprises a support and a hose reel rotatably mounted on the support. A hose is operatively coupled to the hose reel whereby the hose winds about the hose reel when the hose reel is rotated in a first direction. Rotation of the hose reel is driven by a cooperating valve mechanism and gear mechanism. The valve mechanism includes a turbine which is rotated by pressurized fluid flowing through the valve mechanism. The turbine is coupled the gear mechanism which transmits rotary motion from the turbine to the hose reel.

Abstract: A drilling system has multiple cutting structures, including a bit and one or more secondary cutting structures. A method balances the rate of penetration of the drilling system and the wear on the cutting structures by controlling weight on bit and RPM. The method includes calculating a predicted rate of penetration for the bit, using in the calculation the current predicted wear on the bit and the properties of the rock to be penetrated by the bit. The method includes calculating a predicted rate of penetration for at least one of the one or more secondary cutting structures, using in the calculation the current predicted wear on the secondary cutting structure and the properties of the rock to be penetrated by the secondary cutting structure. The method includes determining the slowest rate of penetration among those calculated for the bit and at least one the one or more secondary cutting structures.

Abstract: A hydraulically powered, hose winding apparatus comprises a support and a hose reel rotatably mounted on the support. A hose is operatively coupled to the hose reel whereby the hose winds about the hose reel when the hose reel is rotated in a first direction. Rotation of the hose reel is driven by a cooperating valve mechanism and gear mechanism. The valve mechanism includes a turbine which is rotated by pressurized fluid flowing through the valve mechanism. The turbine is coupled the gear mechanism which transmits rotary motion from the turbine to the hose reel.

Abstract: A drilling system has multiple cutting structures, including a bit and one or more secondary cutting structures. A method balances the rate of penetration of the drilling system and the wear on the cutting structures by controlling weight on bit and RPM. The method includes calculating a predicted rate of penetration for the bit, using in the calculation the current predicted wear on the bit and the properties of the rock to be penetrated by the bit. The method includes calculating a predicted rate of penetration for at least one of the one or more secondary cutting structures, using in the calculation the current predicted wear on the secondary cutting structure and the properties of the rock to be penetrated by the secondary cutting structure. The method includes determining the slowest rate of penetration among those calculated for the bit and at least one the one or more secondary cutting structures.