Drilling installation comprising a cantilever with a drilling floor for performing drilling operations; further comprising an independent operations handling system arranged for handling equipment underneath the drilling floor independent of the drilling operations on the drilling floor, wherein the independent operations handling system comprises a handling element for cooperation with the equipment to be handled, wherein the handling element is extendible underneath the cantilever.

A system and method for transferring tubular elements may include a first structure having a first horizontal platform attached to the first structure on a bottom side and a monorail attached to the first structure on a top side, a second structure having a second horizontal platform attached to the second structure. The first structure and the second structure may be located proximate to each other, while the monorail can extend from the first structure to the second structure. The monorail can have a motion controlled assembly to move a tubular element or assembly of tubular elements.

A system and method for transferring tubular elements may include a first structure having a first horizontal platform attached to the first structure on a bottom side and a monorail attached to the first structure on a top side, a second structure having a second horizontal platform attached to the second structure. The first structure and the second structure may be located proximate to each other, while the monorail can extend from the first structure to the second structure. The monorail can have a motion controlled assembly to move a tubular element or assembly of tubular elements.

A subsea coiled tubing drilling system and a subsea drilling device thereof are provided. The subsea drilling device includes an underwater derrick, a well head device and a dual-roller coiled tubing device, the dual-roller coiled tubing device includes an injection head, a roller for drilling and a roller for running casing, the injection head is arranged right above the well head device, the roller for drilling and the roller for running casing are distributed on two sides of the injection head; both the drilling coiled tubing and the casing running coiled tubing are capable of respectively penetrating through the injection head and the well head device in sequence. Drilling and casing running operations can be realized on the basis of not moving the underwater derrick or changing the self structure state of the underwater derrick, and operation steps can be simplified, and the work efficiency can be improved.

A system includes hoisting cables for raising or lowering an oil rig mast, a support, and hoisting sheaves rotatably mounted on the support. The hoisting cables are wound at least in part about the hoisting sheaves during a process of raising or lowering the mast. Also included are measurement devices which measure angular displacement of the hoisting sheaves during a process of raising or lowering the mast with the hoisting cables. Further included is a signaling device which produces a signal if the measured angular displacement of the hoisting sheaves does not correspond to one or more reference values. A related method includes measuring angular displacement of the hoisting sheaves; comparing measured angular displacement of the hoisting sheaves with one or more reference values; and producing a signal if the measured angular displacement of the hoisting sheaves does not correspond to the one or more reference values.

A system includes hoisting cables for raising or lowering an oil rig mast, a support, and hoisting sheaves rotatably mounted on the support. The hoisting cables are wound at least in part about the hoisting sheaves during a process of raising or lowering the mast. Also included are measurement devices which measure angular displacement of the hoisting sheaves during a process of raising or lowering the mast with the hoisting cables. Further included is a signaling device which produces a signal if the measured angular displacement of the hoisting sheaves does not correspond to one or more reference values. A related method includes measuring angular displacement of the hoisting sheaves; comparing measured angular displacement of the hoisting sheaves with one or more reference values; and producing a signal if the measured angular displacement of the hoisting sheaves does not correspond to the one or more reference values.

A self-propelling drilling machine includes: an undercarriage. a rotary tower, a mast, a kelly bar supported by the mast, a drilling tool fixed at one end of the kelly bar, and a winch associated with the kelly bar to move the kelly bar upwards or downwards. An electric rotary machine is configured to operate as an electric motor suitable for rotating the winch and as an electric generator during the lowering of the kelly bar that causes a rotation of the winch. The machine includes a power supply unit operatively connected to the electric rotary machine.

Embodiments of the present disclosure generally relate to a pumping unit base and methods for operating with the pumping unit base. The pumping unit base may include a plurality of driven piles installed in the ground, and a metal platform fixedly attached to the plurality of driven piles, wherein the metal platform is positioned above the ground. The metal platform may be removed from the driven piles and reinstalled to the driven piles.

Embodiments of the present disclosure generally relate to a pumping unit base and methods for operating with the pumping unit base. The pumping unit base may include a plurality of driven piles installed in the ground, and a metal platform fixedly attached to the plurality of driven piles, wherein the metal platform is positioned above the ground. The metal platform may be removed from the driven piles and reinstalled to the driven piles.

An attachable lighting system for a drilling rig. A method of providing lighting to a drilling rig site comprising, attaching at least one light fixture directly to the crown of a drilling rig on each of at least two sides, wherein the light fixture contains a fixed or removable light fixture attachment connecting the light fixture to the crown, resulting in one or more of enhanced evenness of site lighting, reduced shadows, reduced light pollution, reduced power consumption and/or reduced diesel usage.