Starr F. Schlobohm Oil Operations has been producing oil in Kansas since 1988. MEOR treatments with Wel-Prep 5 were
begun on six 1-well leases in 1989. Treatments consisted of 1, 2 or 3 cyclic injections of a low volume slug of WP-5 spaced
20-30 weeks apart. The first wells treatments were made late in 1989 and treatments continued until late in 1990. At this time tertiary oil recovery using MEOR was not a proven technology, and the producer was rightfully
cautious in his treatment approach. A more aggressive treatment regimen would very likely have produced significantly greater amounts
of incremental oil.
The treatment method was cyclic injection. Initially, 15-20 gal of kerosene was injected into the well bore as a pre-flush. The kerosene was followed with approximately
15 gal of WP-5 microbial solution and flushed with 2 bbl of lease water. Each well was shut in for 48 to 96 hours and then turned back into production. Oil production was monitored weekly
throughout the life of the treatment program, by Starr Schlobohm pumper, John L. Driscoll.
In addition to these trials, data was collected from an on going waterflood project involving the Keil 'A' and Scheuerman leases in preparation for
conversion to an MEOR field flood. Events outside the control of either RAM or the producer interceded before this MEOR field flood project
could get underway. Recent conversations with the producer, Starr Schlobohm, have confirmed his willingness to initiate an MEOR field flood
using Wel-Prep 5. Production data is being gathered to bring the waterflood project up to date and establish a benchmark for measurement of
incremental oil.
Production history and decline charts provided by the Kansas Geological Survey at the University of Kansas.
