公开(公告)号：US20230023261A1

公开(公告)日：2023-01-26

申请号：US17785912

申请日：2020-12-17

Applicant: MHWIRTH AS

Inventor： PER INGE ROENSBERG ,  ROY BIRKELAND ,  ELLEN KOLNES ,  NICOLAI NILSEN ,  JARLE ROPSTAD ,  BJARNE LARSEN ,  SOEREN OEYDNA ,  LARS OTTO SANNES

IPC: E21B19/15 ,  E21B19/20 ,  B63B35/44 ,  E21B19/00

Abstract: A drilling rig includes a drill floor with a well center opening, a derrick having a drilling machine which is suspended above the well center opening, a pipe supply area which is arranged adjacent to the well center opening on the drill floor, and a pipe handling machine. The pipe supply area has at least one pipe rack which horizontally stores pipe sections. The pipe handling machine moves at least one of the pipe sections between a horizontal storage position in the at least one pipe rack and a vertical position or a substantially vertical position above the well center opening.

公开(公告)号：US20240369160A1

公开(公告)日：2024-11-07

申请号：US18572193

申请日：2022-05-13

Applicant: MHWIRTH AS

Inventor： HELDER LIMA ,  TOR MARTIN HEGGLAND ,  ARE AANESLAND ,  ESPEN SHEPPARD ,  ARNE ALBREKTSEN ,  NICOLAI NILSEN

IPC: F16L1/24 ,  H02G1/10

Abstract: An apparatus for mounting a buoyancy aid on an elongate line. The buoyancy aid includes a separable first and second portion which enable the buoyancy aid to be mounted on the elongate line. The apparatus includes a movable frame, a support cradle and an opening arrangement mounted on the frame, and a drive system. The first and second portions are placeable on the support cradle. The opening arrangement includes a gripper which grips whichever of the first or second portion placed on the support cradle is uppermost. The drive system moves the frame between a loading position where the buoyancy aid is placeable on the support cradle and an installation position, and to move the opening arrangement and/or the support cradle relative to the frame so that, when the gripper grips the uppermost first portion or second portion on the support cradle, the first portion separates from the second portion.

公开(公告)号：US20230003103A1

公开(公告)日：2023-01-05

申请号：US17801523

申请日：2021-03-12

Applicant: MHWIRTH AS

Inventor： PETTER MYDLAND ,  GEIR LIEN ,  NICOLAI NILSEN ,  ERLAND NYJORDET

IPC: E21B41/00 ,  E21B44/10

Abstract: 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.

公开(公告)号：US20180202243A1

公开(公告)日：2018-07-19

申请号：US15743674

申请日：2016-06-28

Applicant: MHWIRTH AS

Inventor： NICOLAI NILSEN

IPC: E21B19/00

CPC classification number: E21B19/006

Abstract: A riser tensioning system for providing a tensioning to a riser connected to a floating installation via a tension ring. The riser tensioning system includes at least one riser tensioner assembly. Each of the at least one riser tensioner assembly includes a riser tensioning cylinder comprising a cylinder rod, at least one sheave, and a wireline with a first end and a second end. The first end is fixed to the tension ring, and the second end is fixed to the cylinder rod. The wireline extends between the tension ring and the cylinder piston via the at least one sheave.