Method of abandoning a petroleum well

Abstract

The present invention relates to a method of abandoning a petroleum well ( 1 ) which is provided with at least one measuring device ( 21 ) which by means of a communication means ( 9, 23 ) is arranged to be able to communicate measured results to a receiver device ( 29 ) located at a surface ( 5 ) of the well ( 1 ), where the method comprises to terminate the communication means ( 9, 23 ) in a first communication coupling ( 91′ ) located in a portion of the well ( 1 ) above an upper well barrier ( 11 ) so that the receiver device ( 29 ) being supplied with a fourth communication coupling ( 94′ ) which complementary fits with said first communication coupling ( 91′ ), may selectively be connected to or disconnected from the measuring device ( 21 ) for communication of data out from the well ( 1 ).

1 . A method of abandoning a petroleum well and maintaining communication of the well after cutting a casing, where a well pipe that is located within the casing is provided with a communication means that extends between at least one measuring device and a receiver device being located at a surface of the well characterized in that the method comprises the steps of:
 disconnecting an upper section of the well pipe from a lower section of the well pipe and removing the upper section from the cut location while the cutting of the casing is in progress such that the well pipe is not damaged;   reintroducing said upper section into the well and connecting the upper section to said lower section;   terminating the communication means in a first communication coupling located in the upper section of the well pipe, the communication coupling being selectively connectable to or disconnectable from the measuring device for communication of data out from the well.   
     
     
         2 . The method according to  claim 1 , characterized in that the communication means is constituted by a signal transmission cable extending on an outside of the well pipe. 
     
     
         3 . (canceled) 
     
     
         4 . The method according to  claim 1 , characterized in that the communication means is constituted by the well pipe itself. 
     
     
         5 . (canceled) 
     
     
         6 . The method according to  claim 1 , characterized in that the communication means is connected between the upper section of the well pipe and the lower section of the well pipe by means of a second communication coupling, respectively a third communication coupling. 
     
     
         7 . The method according to  claim 1 , characterized in that the method further comprises supplying an upper end portion of the upper section of the well pipe with a first coupling device making possible selective connection or disconnection of the receiver device or other equipment or pipe being provided with a fourth coupling device complementary fitting with said first coupling device, said first coupling device being located in a portion of the well located above a settable upper barrier. 
     
     
         8 . The method according to  claim 7 , characterized in that the method further comprises supplying the upper section of the well pipe with a second coupling device being located in a lower end portion of said upper section, so that the upper section of the well pipe is defined by the first coupling device and the second coupling device, and that the method further comprises supplying an upper end portion of the lower section of the well pipe with a third coupling device. 
     
     
         9 . The method according to  claim 1 , characterized in that the method further comprises integrating relevant communication couplings in the coupling devices. 
     
     
         10 - 15 . (canceled)