CO@~l199S, Sodety of Petroleum Engin6Ws, inc. Tf-Js paper was prspa-fifi-p-mmti~al me W9S ?iPE/OOE Improved Oil RecoverySYmpdum held in Tulsa, Oklahoma, 19-22A@ i998.This papar wss aelaclad for presentation by an EWE Program Committee followir!g review of hformation confalnad In an abstract submitted by the author(s). Ccntents of the wwr, aS prasanred, hava not i%6n"rW?ewedBy Ihe SZEf3W of Petroleum Enoin=s and are sub@t tO correction by the author~s]. The material, as presented, dcas not necessarily reflect any fxasflion of the Society of Petroleum Engineers, Its officers, or members. Papers presented a! SPE meatings sre sub&f 10 puiSicafimn rmiawlsy Editorial CommiWas of the Sodefy of Petroleum Engineers. Efactronic raprcductiom distribution, or storage of any part of this paper for commercial purpoaas wfthout the wiftsm ccmsant of the Sdety of Petroleum Enginaars is prohibited. Permission to reproduce in print h reatrfcfad to an abstracl of not more than 300 wrdq ilhsirattmns may not be copkd. The abstract must contain conspicuous acfmowiedgment of where and by whom the paper was preaen!ed. Write Liirarian, SPE. P.O. S0s S33S36, Ffichardaon, lX 75063-3&S6, U. S.A., fax 01-972-952-9435. AbstractWater shut-off treatments (WSOT) are routinely performed on wells in the carbonate formation, in one of Saudi Aramco's oil fields that are dead, have high water cut, or low-flowing wellhead pressure. WSOT using through-tubing bridge plugs ('ITBP) in both open-hole and cased-hole completions have been employed. Such a treatment was successfully applied in zones that are LOCYZO swept by the water flooding and are no longer contributing oil and in high permeability zones (super-K) located in the lower interval. These wells were then activated and have been placed on production. The field results horn 40 bottom water shut-off jobs, using 'ITBP technique, are presented. The 1990 -1 996 water shut-off jobs added a total of 88.0 MBD of producible potential. In addition, the application of TTBP method increased recoverable reserves and avoided expensive workover costs.This paper presents data to show that 'ITBP technique is very effective compared to other methods of water shut-off jobs. Significant cost reductions are realized. The success ratio of this treatment in the open-hole completion (OH) can be as high as the cased-hole (CI-1) completion, provided that a 'gauge' hole exists.