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Paper Information

Title: 

EVALUATION OF QUM AREA IN THE DETERMINATION OF OIL TRAPS USING INTERPRETATION AND MODELING OF GRAVITY AND MAGNETIC DATA

Type: PAPER
Author(s): DOULATI F.*,MORADZADEH A.,GHAZI MORADI M.R.
 
 *FACULTY OF MINING AND GEOPHYSICS, SHAHROOD UNIVERSITY OF TECHNOLOGY, SHAHROOD, IRAN
 
Name of Seminar: CONFRANCE ZHEOFIZIKE IRAN
Type of Seminar:  CONFERENCE
Sponsor:  ANJOMANE MELI ZHEOFIZIK IRAN
Date:  2006Volume 12
 
 
Abstract: 

THE GRAVITY AND MAGNETIC SURVEYS HAVE BEEN CARRIED OUT TO INVESTIGATE THE SUBSURFACE OIL TRAPS IN QUM AREA, TO EXPLORE ANY HIDDEN GEOLOGICAL FEATURE OF QUM FORMATION AND TO DETECT ANY INTRUSIVE MASS AND FAULTS. THE FIELD MEASUREMENTS WERE PERFORMED AT 2059 STATIONS. THE BOUGUER ANOMALY AND TOTAL INTENSITY CONTOUR MAPS WERE PREPARED AND INTERPRETED WHEN THE NECESSARY CORRECTIONS WERE DONE ON OBSERVED DATA. THE NECESSARY FILTERING METHODS WERE THEN USED TO ELIMINATE THE EFFECTS OF REGIONAL STRUCTURES AND TO ENHANCE THE LOCAL ANOMALIES, WHICH ARE INTERESTED IN HYDROCARBON EXPLORATION. FOR MODELING PURPOSE, GRAV2DC, A 2.5 DIMENSIONAL MODEL WAS USED TO PERFORM A FORWARD MODELING ON THE GRAVITY DATA. THE MAGNETIC DATA WAS ALSO MODELED USING A 2.5 DIMENSIONAL FORWARD MODELING AND INVERSION SOFTWARE CALLED MAG2DC. THE RESULTS SHOW THAT ALTHOUGH THE PRESENCE OF AN ANTICLINE NAMED "A" IS IMPORTANT FOR OIL EXPLORATION PURPOSE AND IT IS LOCATED IN PROPER DEPTH, HOWEVER, THE MAGNETIC INTENSITY IS VERY HIGH ON A PART OF THIS ANOMALY. FURTHERMORE, IT IS ALSO AFFECTED BY SURROUNDING FAULTS. THEREFORE, THESE FEATURES DISQUALIFY ITS SIGNIFICANT FOR FURTHER EXPLORATION.

 
Keyword(s): GRAVITY AND MAGNETIC SURVEYS, OIL TRAPS, GRAV2DC, MAG2DC, FORWARD MODELING
 
 
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