Case history of geophysical surveys over the Golden Cross gold silver deposit

1989 ◽  
Vol 20 (2) ◽  
pp. 75 ◽  
Author(s):  
S. Collins
Keyword(s):  
Case History ◽  
Silver Deposit ◽  
Clear Signature ◽  
Geophysical Surveys ◽  
Gold Silver ◽  
History Of

The discovery of the Golden Cross gold-silver deposit was originally aided by an airborne magnetometer survey. It has subsequently proved, however, to be a difficult geophysical target. A variety of geophysical tools have been tried over the deposit, but none has been successful in identifying a clear signature for the main ore zone.

GEOPHYSICAL CASE HISTORY OF THE ALTURITAS CONCESSION, STATE OF ZULIA, WESTERN VENEZUELA

Geophysics ◽  
1961 ◽  
Vol 26 (6) ◽  
pp. 691-705
Author(s):  
Harry R. Stenson
Keyword(s):  
United States ◽  
Case History ◽  
Geophysical Methods ◽  
The United States ◽  
Torsion Balance ◽  
Oil Wells ◽  
Chronological Order ◽  
Geophysical Surveys ◽  
History Of ◽  
Error Correlation

The geophysical case history of Alturitas area, western Venezuela is presented. It is unusual in that all the commonly used geophysical methods were employed. The Alturitas anomaly was discovered by the torsion balance in 1929. Subsequent surveys included the gravity meter, magnetometer, refraction and reflection seismograph. The surveys are discussed in chronological order giving the reasons for the particular surveys and results obtained. Although the geophysical results were generally good, an error correlation led to a misinterpretation of stratigraphic relations. This in turn resulted in drilling depths much deeper than anticipated. Five wells were drilled on the concession resulting in three oil wells and two dry holes. Alturitas‐1 and Alturitas‐2 are two of the deepest oil wells outside the United States. Maps are presented for the key geophysical surveys.

Unlocking Reserves, Fracturing Tight Gas-Condensate Bearing Sandstone: The Case History of a North African Field (Algeria)

2013 ◽  
Author(s):  
Lucio Bertoldi ◽  
Raffaele Perfetto ◽  
Francesca Rinaldi ◽  
Gabriele Carpineta ◽  
Luis Granado ◽  
...  
Keyword(s):  
Case History ◽  
Gas Condensate ◽  
Tight Gas ◽  
North African ◽  
History Of

Deep Workover Challenges of an HP/HT Sour Gas Well - Case History of Mutriba 12

2011 ◽  
Author(s):  
Mohammed Jasem Al-Saeedi ◽  
Fayez Abdulrahman Al Fayez ◽  
Dakhil Rasheed Al Enezi ◽  
mahesh sounderrajan ◽  
Mishary Najeeb Al-Mudhaf ◽  
...  
Keyword(s):  
Case History ◽  
Gas Well ◽  
History Of ◽  
Sour Gas
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