Paper Information

Journal:   SCIENTIA IRANICA   2012 , Volume 19 , Number 6 (TRANSACTIONS C: CHEMISTRY AND CHEMICAL ENGINEERING); Page(s) 1601 To 1607.
 
Paper: 

POSITIVE EFFECT OF EARTHQUAKE WAVES ON WELL PRODUCTIVITY: CASE STUDY: IRANIAN CARBONATE GAS CONDENSATE RESERVOIR

 
 
Author(s):  MIRZAEI PAIAMAN A.*, NOURANI M.
 
* DEPARTMENT OF PETROLEUM ENGINEERING, NATIONAL IRANIAN SOUTH OIL COMPANY, FADAEYANE ISLAM ST., CHAHAR TABAGHEH BUILDING, 3RD FLOOR, ROOM 325, AHVAZ, IRAN
 
Abstract: 

Artificially made seismic waves have been used for both tertiary recovery and well stimulation purposes. The idea behind using this method for enhancing recovery came from a number of real examples, in which a kick in oil production has been seen following an earthquake. Most published information has addressed the United States and earlier Soviet Union regions. This paper documents the results of observations regarding the effect of earthquake waves on well production from Khami carbonate gas condensate reservoir in the Marun field, in the northern Persian Gulf. The response of three wells in this reservoir (referred to as wells A, B, and C) to a magnitude M=5.7 earthquake at an approximate distance of 217 km away is discussed. After this earthquake, there was a sharp significant increase in production from well A. The flowing wellhead pressure of this well suddenly increased from 4263 to 5042 psig and went back to its normal condition after five months. The two other wells behaved differently and showed no change in production. Analyses showed the removal of near wellbore formation damage caused by a condensate dropout in well A using natural seismic waves.

 
Keyword(s): SEISMIC WAVES, EARTHQUAKE, WELL PRODUCTION, GAS CONDENSATE, POROUS MEDIA, SKIN, FORMATION DAMAGE, CONDENSATE DROPOUT
 
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