Downhole hanger systems are described. The downhole hanger systems include a first structure having an outer surface, a second structure having an inner surface, wherein the first structure is disposed within the second structure, and at least one rib set is arranged on the outer surface of the first structure and configured to be engageable with the inner surface of the second structure. The at least one rib set includes a first rib having a first rib height and a second rib having a second rib height that is less than the first rib height.

A system for drilling a well includes a gripping unit provided at a rig above a surface of the well for holding a top end of a drill string in the well, a liner releasably connected to the drill string, and a downhole motor installed on the drill string in an axial position between the surface of the well and the liner, where the downhole motor has a stator connected to the drill string and a rotor operatively connected to an axial end of the liner closest to the surface of the well.

A self cleaning leak containment apparatus for an oil drilling rig includes nozzles to direct jets of cleaning fluid into the apparatus. The self cleaning leak containment apparatus can include a tray with nozzles fed by pumps that also serve to drain the tray. A sheet-form around the tray and draining into the tray can also have nozzles directed into it.

A method for performing a subterranean operation that can include operations of engaging a tubular with a pipe handler, calculating, via a processor, an internal volume of the tubular, determining, via the processor, a number of pump strokes required to fill at least a percentage of the internal volume with fluid, pumping the fluid to the tubular by running a pump the number of pump strokes, and filling the internal volume of the tubular to at least the percentage of the internal volume with the fluid.

Various embodiments disclosed relate to a configurable drill fluid containment device. The present disclosure includes a device including a central shell configured to at least partially enclose an end of a drill pipe. The central shell can have two halves, each of the halves having flanges that are configured to attaching one or more extension features to the device. The flanges can be configured to attach extension features at an upper end of the device, a lower end of the device, or both.

A system for drilling a well includes a gripping unit provided at a rig above a surface of the well for holding a top end of a drill string in the well, a liner releasably connected to the drill string, and a downhole motor installed on the drill string in an axial position between the surface of the well and the liner, where the downhole motor has a stator connected to the drill string and a rotor operatively connected to an axial end of the liner closest to the surface of the well.

A method for performing a subterranean operation that can include operations of engaging a tubular with a pipe handler, calculating, via a processor, an internal volume of the tubular, determining, via the processor, a number of pump strokes required to fill at least a percentage of the internal volume with fluid, pumping the fluid to the tubular by running a pump the number of pump strokes, and filling the internal volume of the tubular to at least the percentage of the internal volume with the fluid.

A method for continuously controlling fluid flow rates through a well (4) provides to shut off the drilling mud at the well inlet and outlet and detect measurements of flow rate and density of the drilling mud by a Venturi measuring device (10,2).

Downhole hanger systems are described. The downhole hanger systems include a first structure having an outer surface, a second structure having an inner surface, wherein the first structure is disposed within the second structure, and at least one rib set is arranged on the outer surface of the first structure and configured to be engageable with the inner surface of the second structure. The at least one rib set includes a first rib having a first rib height and a second rib having a second rib height that is less than the first rib height.

A pipe for cableless bidirectional data transmission and continuous circulation of a stabilizing fluid in a well for the extraction of formation fluids includes a hollow tubular body which couples with respective drill or completion pipes; a radial valve associated with the tubular body, the radial valve connectable to a pumping system outside the tubular body; an axial valve associated with the tubular body; a communication module associated with the tubular body that includes at least one metal plate selected from a transmitting metal plate, a receiving metal plate, and a transceiver metal plate; an electronic processing and control unit that processes signals to be transmitted by means of the at least one metal plate or signals received by means of the at least one metal plate; and one or more supply batteries for feeding the metal plates and the electronic processing and control unit.