FMI Formation Microimager - High Resolution Solution Tool to Reveal Structural Complexity, Western Desert, Egypt
The Formation Micro Imager tool provides high resolution electrical images, which is capable of<br>detecting any features within the studied formation. In majority of cases, FMI can replace an expensive<br>coring cost depending on the finer scale details identified beside image contrast...
محفوظ في:
| المؤلف الرئيسي: | |
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| مؤلفون آخرون: | |
| التنسيق: | conferenceObject |
| منشور في: |
2010
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| الوصول للمادة أونلاين: | http://hdl.handle.net/10725/16761 https://doi.org/10.3997/2214-4609-pdb.248.158 http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php https://www.earthdoc.org/content/papers/10.3997/2214-4609-pdb.248.158 |
| الوسوم: |
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| الملخص: | The Formation Micro Imager tool provides high resolution electrical images, which is capable of<br>detecting any features within the studied formation. In majority of cases, FMI can replace an expensive<br>coring cost depending on the finer scale details identified beside image contrast and extended borehole coverage.<br>A very well known oil company in Egypt is drilling in Western Desert province with high profile drilling<br>program, almost 10 wells per month, and as all the structural complexity is being solved by their high<br>resolution seismic sections, hardly any problem or well misplacing they faced before. This is before<br>they drill one of their development wells, in which they encountered a very unusual section; where all<br>the supplementary data and the conventional open hole logs beside ditch cutting and microscopic<br>examination didn’t reveal any fair solution to them.<br>FMI images were kept as their last chance trying to understand how this dilemma could be solved. FMI<br>overall image quality was very good, which contributed efficiently to the structural interpretation<br>results. The processed FMI* image showed strong and distinctive evidence for the severe cataclastic<br>deformation, rocks breakage, fractures and brecciation owing to the crushing and pulverization<br>processes along the sub- seismic faults planes cutting through the studied formation.<br>The studied well is vertical over the entire logged interval, hence penetrated the investigated zone<br>parallel to two (sub-vertical) main cross-cutting faults; therefore the well was penetrating through the<br>breccia zone along the fault plane for a considerable distance. This resulted in a great thickness, about<br>30 m, which was imaged over that fault breccia zone.<br>FMI was the only tool capable of solving this structural complexity and mixed lithology that were never<br>been solved unless cored, and hence increasing the well capital expenditures as compared to a single FMI run. |
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