Analysis of Enhanced Oil Recovery Using Enzymes in Texas - Case Study
Enzyme Enhanced Oil Recovery (EEOR) utilizes non-living enzymes that are protein based and effectively release hydrocarbon compounds from solid surfaces. Greenzyme® is a unique oil well unclogging agent developed by Apollo Separation Technologies, Inc. To date, most applications of this product have been overseas in China, Indonesia and Venezuela. Greenzyme® 280 enzyme fluid is presently used in a variety of downhole applications to remove blockage, release additional oil and improve mobility of crude. Jumpstart Energy Services is actively involved in developing applications for enzyme fluid technology primarily in the U.S. and Canada.
The Hitzfelder #3 Lease on the Prue Ranch (Anacacho) Oilfield in Frio County, Texas is owned and operated by Property Development Group. Inc. (Austin, TX). This well was originally drilled by Property Development Group in 1997 and has cumulative production (thru 3-31-07) of 108.411 bbls of oil (34° API gravity). The well has historically produced some gas. but wasn't tabulated per this test. The formation is a detrital zone that formed at the interface of the Anacacho limestone and the Serpentine formation and didn't require fracturing. The detrital zone had natural fractures that were opened by acidizing. The well's drive is a combination of dissolved gas and water. The well was completed for the Anacacho formation at the end of 1997 with 8,522 bbls of oil produced during the last two months. In 1998. the first full year of production and the peek production year. Hitzfelder #3 produced 36,751 bbls or ^101 BOPD. Production has declined since then with more rapid decline beginning in 2001. Hitzfelder #3 averaged about 3.7 BOPD in 2005. An acid job was completed on 2-11-06. The well was shut down with no pressure, and then put on pump after 4 hours. This helped restore production. The average for 9 days prior production before treating with Greenzyme® on 5-31-06 was 4.34 BOPD.