Saudi Arabian Oil Company

Yassar Kamal Zia

Syed Muhammad Ali

Dautmammet Rejepov

A system for drilling a wellbore includes a drill string, bottom hole apparatus, and a rotation regulator. The rotation regulator includes a compound planetary gear set with a first and second planetary unit. The first planetary unit is disposed in a proximal region of the rotation regulator from the drill string. The second planetary unit is disposed in a distal region of the rotation regulator from the drill string. The gear set includes a hollow central shaft. The central shaft is common between the first and second planetary units. The central shaft is of a different outer diameter at each planetary unit. A bearing is arranged between the first and second planetary units. The drill string, rotation regulator, and bottom hole apparatus are connected in series, so the rotation regulator mechanically transmits the rotation of the drill string into the bottom hole apparatus.

Bottom hole apparatus RPM regulator

An apparatus is used on top of a column of drilling fluid in an annulus of a wellbore. The apparatus includes at least one floating device, at least one receiver, a communication interface coupled to the at least one receiver, a processor coupled to the at least one receiver and the communication interface, and a memory coupled to the processor. The memory includes instructions configured to perform a method that includes obtaining a start command to generate fluid level data, generating the fluid level data using the at least one floating device and the at least one receiver, and transmitting the fluid level data using the communication interface.

System and method to measure mud level of mud cap in a wellbore annulus

A conductor running and cementing bracket (CRCB) includes a plurality of support beams for supporting a conductor upon engagement with a conductor landing joint disposed on the conductor, wherein the plurality of support beams comprise a first set horizontally fixed to a second set. The CRCB further includes a side door elevator to grip the conductor thereby preventing further downhole movement at a landing level and a plurality of adjustable conductor extension sleeves arranged on the second set and extendable to variable lengths to accommodate conductors of varying diameters. The landing level of the conductor is below a rotary table level configured to hold a drill pipe via a rotary slip. Once the side door elevator is gripping the conductor, the conductor landing joint is removed and a drill pipe with a stinger is run into a wellbore. Upon running the drill pipe, a cementing operation is conducted.

Conductor running and cementing bracket (CRCB)

An example liner hanger system includes a casing for lining a wellbore and a collar configured for connection to a part of the casing within the wellbore. The collar has a first shape and a liner hanger has a second shape that is based on the first shape. The liner hanger is configured to fit within, and to be supported by, the collar. The system also includes a screen connected to the liner hanger.

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Abqaiq, Saudi Arabia

Yassar Kamal Zia