|
Paraffin was plugging down-hole pumps and tubing until Reef Services arrived with its PAS-310, paraffin asphaltene solvent and eliminated the need for hot oil treatments.
Customer:
Major independent with subject wells located in Midland County, the West Texas Permian Basin.
Pertinent well data:
Zones: Spraberry, Wolfcamp, Dean Perforations: Approximately 6,000-8,100 Casing:5-1/2” Tubing: 2-3/8”
Lift Type: Rod Pump
Problem:
The wells exhibited severe problems with paraffin plugging the down-hole pumps and tubing. The wells required frequent hot oil treatment. This led the customer to believe the potential of the wells was not being fully realized. The customer sought an alternative to the expensive and undesirable practice of hot oil treatment.
Production prior to workover:
Gas MCF: 36 MCFD Oil: 49 BOPD Water: 80 BWPD
Recommendation:
After the decision was made to treat chemically for paraffin/asphaltene removal, Reef Services, LLC recommended PAS-310, paraffin asphaltene solvent. The objective was to remove paraffin/asphaltene deposition in the formation and production string, making it possible to eliminate hot oil treatment. The procedure used follows:
- RU pump truck to annulus.
- Pump 165 gallons PAS-310 at 2 bpm.
- Flush with 15 barrels of clean lease oil at 2 bpm.
- SI 24 hours and returned to production.
Production after workover:
Gas production increased immediately to 153 MCFD. Oil production increased to 64 BOPD. Water production increased to 112 BWPD. After 90 days the stabilzed results were: Gas MCF: 195 MCFD Oil: 68 BOPD Water: 112 BWPD
Summary:
The total job cost paid out in less than 7.5 days. Since payout, the average monthly revenue generated by the PAS-310 job is $22,647.36. The wells have not been hot oiled since November 2001.
|
