A method for controlling drilling operations includes defining operation zones in a drilling operation area, each operation zone having equipment operating therein, and repeatedly performing the steps of: determining a position of at least one person in the drilling operation area, determining whether the respective determined position is within any of the operation zones and associating each person to the operation zone in which the person is located, determining whether the respective determined position is within a safety zone in proximity to the equipment, determining at least one action to be performed with regard to each operation zone in which the person has been determined to be present, and transmitting at least one control signal for controlling the drilling operations based on the at least one action determined. The at least one action is determined dependent on whether or not the position of the person is in the safety zone.

A bell nipple assembly includes a tubular main body and a catcher assembly positioned above the tubular main body that includes an upper opening with a diameter greater than an inner diameter of the tubular main body and one or more inwardly sloping inner surfaces configured to catch fluids falling from the rig floor or from an exterior surface of the drill string and to direct the fluids to the tubular main body. The bell nipple assembly also includes one or more magnets configured to direct a magnetic field toward an interior of the catcher assembly and to attract a metallic object falling within the interior of the catcher assembly towards the inwardly sloping inner surfaces.

A self-retaining shear pin tool and methods for connecting downhole tubulars in a wellbore are disclosed. The self-retaining shear pin tool includes a cap having an inner side and an outer side opposite the inner side, the cap defining a first recess formed in the inner side of the cap, the first recess of the cap having a cylindrical portion and a frustoconical portion extending from the cylindrical portion towards the outer side of the cap, and a shear pin disposed partially in the first recess of the cap and extending out of the first recess of the cap. The shear pin includes a body, a first recess extending inward from a first end of the body, a second recess extending inward from a second end of the body, a first swage, and a second swage die.

An improved external trap apparatus 570 and a method for safely controlling drilling tool string components during oil field drilling operations includes a collar clamp 72 affixed to a drilling tool string lubricator 80 and configured with laterally spaced first and second vertical rails 120, 122 depending therefrom. Lubricator 80 also carries a lubricator clamp assembly 572 which is affixed to Lubricator 80 with inward clamping surfaces defining a non-circular or slightly elliptical central bore 574. Laterally spaced first and second vertical rails 120, 122 are configured to support a reinforced catcher plate assembly 164 carrying a tool-end receiving funnel receptacle 202 and first and second energy absorbing crush cylinders 160, 162. When the drill string 82 is raised or withdrawn from the well 28, the funnel receptacle 202 can be rotated into coaxial alignment to catch the drill string's end or downhole tool, in the event of an inadvertent loss of control of the drill string 82. Further disclosed is a sleeve/guide assembly to work in conjunction with the lubricator collar clamp, catcher plates, and crush cylinders.

A leak detection system includes a light source configured to output emitted light into a region of water, and a light detector configured to receive returned light from the region of the water and to output a detector signal indicative of the returned light. The leak detection system also includes at least one controller configured to detect hydrocarbons within the region of the water in response to detecting a hydrocarbon wavelength within the returned light, to determine at least one position of the hydrocarbons within the region of the water based on a time difference between a first time at which the emitted light is output from the light source and a second time at which the returned light at the hydrocarbon wavelength is received at the light detector, and to generate a three-dimensional model of a subsea structure based on the detector signal.

A self-retaining shear pin tool and methods for connecting downhole tubulars in a wellbore are disclosed. The self-retaining shear pin tool includes a cap having an inner side and an outer side opposite the inner side, the cap defining a first recess formed in the inner side of the cap, the first recess of the cap having a cylindrical portion and a frustoconical portion extending from the cylindrical portion towards the outer side of the cap, and a shear pin disposed partially in the first recess of the cap and extending out of the first recess of the cap. The shear pin includes a body, a first recess extending inward from a first end of the body, a second recess extending inward from a second end of the body, a first swage, and a second swage die.

A safety management method for well site worker, a safety management system for well site worker and a storage medium are disclosed. The safety management method for well site worker includes acquiring position information of the well site worker; acquiring layout information of a well site, the layout information including position information of a safe region, a dangerous region, and a buffer region between the safe region and the dangerous region in the well site; and in response to the well site worker being located in the buffer region or the dangerous region, sending an alarm signal to warn the well site worker to stay away from the dangerous region.

A wellbore tool includes a rod with a plurality of rod sections. The rod is configured to be placed within a wellbore casing of a low-pressure hydrocarbon well. A plurality of sealing elements are positioned at a downhole end of the rod. Each sealing element is configured to provide a gas-tight seal between the sealing element and an inner wall of the wellbore casing. A handle positioned at an uphole end of the rod provides a hand grip for a user of the wellbore tool.

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.

Systems, methods, and computer-readable media for mitigating collision occurrences on a drilling rig, of which an example of the method includes associating ultra wide band (UWB) tags with pieces of rig equipment and rig personnel. The tags are configured to communicate with one or more anchors. The method also includes determining interlock rules associated with each of the pieces of rig equipment, monitoring positions of the pieces of rig equipment and the rig personnel using the tags, in real-time, determining that one or more of the interlock rules are violated by a position of one or more of the pieces of rig equipment, rig personnel, or both, and, in response to determining that the one or more of the interlock rules are violated, at least partially disabling operation of one or more of the pieces of rig equipment.