Rehabilitation Of Destroyed F-10 Platform - Belayim Marine Field
Authors: Eid M.M. 
Published: December 2007

In 137' of water depth, F-10 platform with 12 piles and 8 slots was built in 1966 by COPE to exploit the North-Western part of the Field, (16 km., of Sinai shore and 150 km South of Suez).

By June 1967, one well was drilled to 8974 ft. and completed as oil producer. After June 1967, three more oil productive wells were drilled.

During 1973 October war, the platform was hit by missile and went immediately on fire which resulted in complete destruction of half the platform and four well heads.

In December 1975, upon return of Sinai Oil Fields to Egypt, it was found that the conductor pipe and all casing strings were cut 10' ft below water level and capped the 7" production string by clamped casing head and valve at @ 2' below sea level at low tide. One well was equipped with BOP., under water and connected by temporary arrangement to production and flowed for two months and died. production and flowed for two months and died. The other three wells were capped without any safety device, one of those wells had Reda pump and most probably dropped down 2470' to pump and most probably dropped down 2470' to reach bottom.

Studied the matter carefully and the choice was either to rehabilitate the damaged platform and workover the four wells or to drill another wells at cost of 20 million dollars.

Decision was taken to workover the wells and to put on production by artificial lifting using Reda submersible pumps at a rate of 14000 BOPD. The outlines of the plan was to control well by squeezing pill of plan was to control well by squeezing pill of HCL acid soluble material (mainly Ca CO3 and polymer) to bridge perforations temporary polymer) to bridge perforations temporary and also to avoid formation damage during operations, to pull production string, to set bridge plug to secure well, to tie-back conductor pupe; and casings from under water to cellar deck and install new well head equipment, to run the pump and turn to production. production. Prepared equipment and material, contracted Jack-up barge which failed to start due to rig collapse. COPE had to find another solution, purchased a racked IDECO MH-35 rig which was repaired, overhauled, installed on platform and ready for work in 3 months time.

In May 1977 started to execute the programs and went on very successfully and programs and went on very successfully and managed to put on production one well after the other every 2 months. All difficulties were overcome including long fishing job and had to recover Reda pump with damaged tubing at pieces.

At present the current production rate from the four wells is 13188 BOPD against cost of 6.5 million $.

In this paper, we spot some lights on the way how COPE planned, excuted and achieved the target, avoiding drilling 4 replacement wells and saving about 13.5 million $.

PLATFORM F-10: PLATFORM F-10:The platform F-10 is located on the intersection of Belayim Marine Field grid lines F and 10 about 16 km. Off-shore the Gulf of Suez in a water depth of +/- 137'. The platform was built in 1966 as a self contained 8 wells drilling and production platform to develop the North-Western part platform to develop the North-Western part of the field.

The platform was built as two independent units connected with a gang way, the first unit with 12 piles consists of two main decks plus one auxiliary deck for the drilling and production facilities, the surface dimentions of top deck is 85.3' X 107'.