Replies to post #15570 on Eldorado Exploration Inc (fka EDEP)

[geotmp]

Drill stem test are conducted with a drilling rig when the hole is being drilled. Most times, these test are conducted when porosity sections with oil and gas shows are encountered. The rig drills into such a section, then shuts down to conduct the test. This requires one packer to be set above the zone in a good, solid, tight formation. In this case, everything below the packer is opened to the drill string and allowed to flow up the inside of the drill string to the surface if possible. If the zone has enough pressure, it may flow all the way to the surface, i.e. a flowing drill stem test, a very good result. Straddle test are also sometimes conducted if necessary, i.e. the zone has been totally drilled out and must be isolated from the top as well as the bottom of the hole. Drill stem test really have nothing to do with any completion attempt. All of these test have already been ran before the drilling rig is released.

My preference on what to do with the Mesa Prospect, if successful will depend on what we find in the well, gas or oil, as well as how good the production is. It is difficult to answer this question without knowing this information.

[geotmp]

I think I misunderstood your questions in my first response and gave an incomplete answer. The problems we encountered while drilling the Mesa 26 State No. 1 that prevented us from conducting drill stem test are now behind casing, the 8 5/8" intermediate casing string. Out of sight and out of mind, so to speak. These problems are definitely cased off and are no longer problems. They will not hinder our completion attempts.

No, it is not difficult to produce such a problem well. We will test the upper zones behind the 8 5/8" intermediate string. We then plan to drill out all cement plugs, and run and cement 5 1/2" production casing to near the bottom of the hole. Afterwards, we will drill out the rest of the cement plug, dropping the bit into open hole, and then deepen the hole to firm, solid igneous rock. We still don't know how deep the granite wash zone is. Some operators have reported granite wash thicknesses of more than 100 feet. That would certainly be a nice surprise!