ABSTRACT:

The Karous field is an offshore Pliocene gas field located in Temsah Concession approximately 8 km from the North Port Said Concession at a water depth of about 30 Mt. Karous field has limited recoverable dry gas reserves (i.e. no condensates produced) equal to 3.14 GSCM. The modest reserves of Karous field had been an obstacle to develop the field in a conventional articulated scheme with a platform, export sealines and onshore plant. To render the development economically attractive, it was necessary to take advantage of some existing nearby infrastructure, such as the existing 36" subsea trunk-line belonging to North Port Said concession to send the production to El-Gamil existing onshore plant. Furthermore, it was taken into consideration during the development phase, the integration of future developments in Temsah concession together with Karous field. Therefore a 30" subsea trunk line was laid and tied-into the existing 36" subsea trunk line. The 30" sealine represents a back bone connecting the concessions of Temsah and North Port Said to send the production of Karous to El-Gamil Plant through the 36" line. This project has incorporated subsea techniques such as under water hot tapping, installations of Pipeline End Manifolds (PLEMs) and subsea tie-ins of Pipelines to PLEMs. This paper represents a case history that focuses on the subsea techniques applied during the execution phase of the project. It reviews also the tight schedule of this fast track project and the approaches employed by Petrobel's project management team.

This content is only available via PDF.
You can access this article if you purchase or spend a download.