Abstract: The present disclosure relates to a downhole electrical energy generating device (105) and a method for transforming energy from a fluid flow (107) passing the device (105), including: at least one vibrating assembly (250) influenced by the fluid flow (107) to oscillate, the vibrating assembly (250) including an elongated body (206) having a longitudinal axis being arranged non-parallel with the fluid flow (107), a stiff body (205) connecting the elongated body (206) to a portion of the device located downstream of said elongated body (206); at least one energy harvester (203) influenced by the vibrating assembly (250), wherein the energy generating device (105) is provided with means (204) for influencing the oscillation frequency of the vibrating assembly (250).

Abstract: The disclosure relates to a method for controlling a well barrier (401, 1002) arranged so as to be able to be inserted into a well for allowing a first well zone to be separated from a second well zone by means of a sealing element (409, 903, 1006,), wherein the method includes setting a pressurized fluid in communication with an activating element (905, 906; 1004, 1005) by selectively controlling an opening device (913, 914, 915), and wherein the activating element (905, 906; 1004, 1005) influences opening of the sealing element (409, 903, 1006) to provide communication between said first and second well zones, wherein the method further comprises the step of influencing the pressurized fluid supplied to the activating element (905, 906; 1004, 1005) by the well pressure upstream or downstream of the sealing element (409, 903, 1006). The disclosure also relates to a well barrier (401, 1002) for execution of the method.

Abstract: The present disclosure relates to a device and a method for isolating a section of a wellbore, the device including a straddle packer (1) and associated systems (100, 10) for selectively setting of at least one upper packer element (2), at least one lower packer element (3) and at least one anchoring device (4) of the straddle packer (1), wherein at least one setting element (10) of the straddle packer (1) is operated independent from other setting elements (100).

Abstract: A system for communicating with downhole tools and devices is disclosed. The system includes multiple communication devices which, in combination, permit operators at the surface to operate downhole tools and to receive feedback regarding the state of the tools.

Abstract: Device for a tool string (2) for insertion in a well, the tool string (2) being provided with a brake nose (1).

Abstract: The present invention regards an apparatus and a method for subsea deployment and/or intervention through a wellhead (102) of a petroleum well (112). The apparatus comprises a first module (101) integrated in a portion of a subsea well intervention system assembly (102, 103) and/or a subsea production system assembly, the first module (101) comprising an intervention tool bore (201); a second module (301) comprising a tubular element (302) initially housing an intervention tool (314), wherein the second module (301) being arranged for sliding into releasable engagement with the intervention tool bore (201) of the first module (101), whereupon the intervention tool (314) is arranged for disengagement from the tubular element (302) for deployment of the intervention tool (314) into the wellbore (112).