Production resumed from the Port Neches CO(sub 2) project on December 6, 1993, after a 75 days shut in period. Since that date production is continuing to improve on various wells that responded to CO(sub 2) injection. Current production is averaging 325 BOPD from 3 wells. This represents 4 folds increase from the production level prior to commencing CO(sub 2) injection. Texaco continue to purchase an average of 4.3 MMCF/D of CO(sub 2) from Cardox. The reservoir pressure increased with CO(sub 2) injection from 2460 psi in September 1993 to 3328 psi in January 1994. However, the reservoir pressure declined slightly since then to 2730 psi in March of this year because of reservoir imbalance due to downtime at the CO(sub 2) source. Currently, CO(sub 2) is being injected in 3 wells in the reservoir including the horizontal well drilled specifically for this purpose. The well, through its 250 ft horizontal section, is capable of taking all the available CO(sub 2) volume. However, injection rate in the well is restricted in order to distribute the CO(sub 2) evenly in the reservoir. Texaco is continuing its efforts to transfer this technology to other operators by presenting two papers at the SPE /DOE symposium that was hold on April 17--20, 1994, in Tulsa, Oklahoma. One paper will discuss reservoir characterization and project design, while the other paper will discuss the development of the screening model. This model is scheduled for release to the public in 1994, it will be a very useful screening and design tool for the industry. A topical report covering the environmental regulations and constrains related to the implementation of similar projects, will be released later this year. (ERA citation 19:020766)
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