Oil, gas production rates climb for Texas field amid new discoveries
Universal Bioenergy said Friday that joint venture partner Progas Energy Services continues to drill in the Premont Northwest oil and gas field in Jim Wells County, Texas, where it recently discovered more oil and gas and increased well production rates in several new zones.
The recent work to open up additional gas sands in the Guerra #2 well were successful in bringing into production a previously untested zone in field, thereby proving up additional reserves for the well and the field, the companies said.
Per previous reports, the lower Laughlin zone - a Frio sand at a depth of 3338 to 3345 feet - was tested and obtained good deliverability for a well for its depth.
This sand was isolated from the upper or second sand so that the upper sand could be opened up and tested on a standalone basis and isolated from the lower gas sands production.
This previously untested upper or second zone at a depth of 3320 to 3330 feet was opened up and perforated on May 5, and testing was initiated on May 12.
The well came in natural, without the requirement for fracturing the well or otherwise stimulating the formation to aid production from the gas sand.
Production rates are not yet available, but preliminary reports indicate that the upper Laughlin gas sand should equal the lower Laughlin sands gas production rates, the companies said.
This well represents a new discovery and a pleasant surprise to the partners because the other sections of the Laughlin sand in the field had been productive of oil only, they said.
This section of the sand has opened up in two lobes of the Laughlin gas sand in the Guerra #2, which zones could increase the natural gas reserves of the field significantly.
In addition to these two zones that have proven to have commercial production potential, there exist another seven gas zones and three oil sands that cored and or tested oil and gas during drilling and logging operations in the Guerra #2, the companies said.
These sands appear to be present in a large portion of the field. Estimates of the reserves of these zones are not yet available but should increase overall gas reserves of the field significantly.
Progas Energy intends to move a completion rig onto the Garcia #2 well within the next two weeks for the completion of a second zone, officials said.
That well is currently producing commercial quantities of oil from the lower Barnsdall sand at a depth of 3420 feet.
The Premont Northwest Field is highly unusual due to the number of stacked oil and gas sands in the Frio and Miocene formations in the field, with as many as 12 to 14 sands having been tested or cored for oil or gas in each of the first three wells drilled.
The next four wells are anticipated to be drilled within the next 30 to 60 days, with two wells being drilled on inside locations or locations between existing wells with two wells extending the perimeter of the field.
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