摘要 |
<p>The invention regards 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 comprises 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 pres-sure upstream or downstream of the sealing element (409, 903, 1006). The invention also regards a well barrier (401, 1002) for execution of the method.</p> |
申请人 |
WELL TECHNOLOGY AS;TINNEN, BAARD, MARTIN;SOERTVEIT, HAAVAR |
发明人 |
TINNEN, BAARD, MARTIN;SOERTVEIT, HAAVAR |