To date, GARP® has been successfully installed on numerous horizontal wells in the Giddings Austin Chalk Field. After the installation, a sustained ~10-20 fold increase in total reservoir liquids was realized, with reserve increases of up to 33% of the cumulative production in place. The patented design will function in wells with casing strings 7” or larger; however, for wells with casing strings smaller than 7” but larger than 4-1/2”, a patent pending design has been developed which contains all the benefits of the larger casing design.
Morgan Kovar #1 – Fayette Co. Texas
This well is a horizontal Austin Chalk well in the Giddings Field with 7-5/8” casing. It was drilled in 1992 and was severely depleted making only an average of 1 BOPD + 1 BWPD + 10 MCFD. It had a cumulative production of 232 MBO + 677 MMCF before the GARP installation and projected remaining reserves were estimated to be 3 MBO + 13 MMCF. After the GARP installation in December 2011, the production increased to 15 BOPD + 40 BWPD + 60 MCF/D. As of July 2014, after 2-1/2 years of sustained production, the well is averaging 5 BOPD + 12 BWPD + 15 MCFD. If the well follows the predicted decline curve it will produce an additional 49 MBO +144 MMCF. This represents an increase of 21% on a BOE basis over the cumulative oil and gas production before the GARP installation.
Selected Lands #2 – Grimes Co Texas
This well is a horizontal Buda and Georgetown well in the Giddings Field with 7-5/8” casing. It was drilled in 1996 and was severely depleted with a cumulative production of 155 MBO + 566 MMCF before the GARP installation. The previous operator took it off artificial lift 5 years previously because of marginal economics. The well had very marginal economics and produced an average of only 0.25 BOPD + 0 MCFD. After the GARP installation in January 2012, the well unloaded water at a rate of 100 bbls per day for several weeks and then began making oil. As of July 2014, the well is currently producing an average of 8 BOPD + 35 BWPD. If the well follows the predicted decline curve it will produce an additional 72 MBO which represents an increase of 29% on a BOE basis over the cumulative oil and gas production prior to the GARP installation.
Philip DL #1- Grimes Co Texas
This is a horizontal Austin Chalk well in the Giddings Field with 7-5/8″ casing and was drilled in September 1994 and produced 194 MBO + 5.3 BCF until August 2009 when it was shut-in (uneconomic). GARP was installed in May of 2013 and the well produced ~100 BWPD for over a month before starting to make hydrocarbons. As of July 2014 the well is averaging 240 MCF/D + 4 BOPD + 45 BWPD. The added reserves from the GARP installation is expected to be 42 MBO + 2200 MMCF which represents a 37% increase from the Pre- GARP cumulative production on a BOE basis.