PTTC Casing Integrity Workshops Receive Attention of National Publication

Co-sponsoring with the Wichita Section of the Society of Petroleum Engineers, the North Midcontinent PTTC presented a half-day workshop in Wichita on April 11, 2006. The subject of the event was “Maintaining and Repairing Casing Integrity”. The workshop was a repeat of the highly successful one held in Great Bend last September. Speakers from the Kansas Corporation Commission, Baker Petrolite, Earth Vision Video, Baker Atlas, Schlumberger, Weatherford, Corrosion DC, and the PTTC, made presentations on downhole videos, corrosion inhibition, casing liners and patches, wireline casing inspection, squeeze cementing, and cathodic protection. Sixty-one people from six states attended.

The Casing Integrity workshops were the subject of an article in the June 2006 issue of the American Oil and Gas Reporter. That article emphasized the fact that America’s wells are getting old and subject to increased frequencies of casing leaks, and … “aging and reactivated wells point toward an important operational issue”. Each of the methods of wellbore inspection and testing, and remedial processes presented at the Kansas workshops were discussed in the article.

CO2 Pilot Update

A pilot carbon dioxide miscible flood was initiated in the Lansing Kansas City C formation in the Hall Gurney Field, Russell County, Kansas. The reservoir zone is an oomoldic carbonate located at a depth of about 2900 feet. The pilot consists of one carbon dioxide injection well and two production wells on about 10 acre spacing. Continuous carbon injection began on December 2, 2003. By the end of June 2005, 16.19 MM lb of carbon dioxide were injected into the pilot area. Injection was converted to water on June 21, 2005 to reduce operating costs to a breakeven level with the expectation that sufficient carbon dioxide has been injected to displace the oil bank to the production wells by water injection. Wells in the pilot area produced 100% water at the beginning of the flood. Oil production began in February 2004, increasing to an average of about 3.78 B/D for the six month period between January 1 and June 30, 2005 before declining. By June 6, 2006, 37028 bbls of water were injected into CO2I-1 and 2,666 bbl of oil were produced from the pilot. Injection rates into CO2I-1 declined with time, dropping to an unacceptable level for the project. The injection pressure was increased to reach a stable water injection rate of 100 B/D. However, the injection rate continued to decline with time, suggesting that water was being injected into a region with limited leakoff and production. Oil production rates remained in the range of 3-3.5 B/D following conversion to water injection. Oil rates increased from about 3.3 B/D for the period from January through March to about 4.7 B/D for the period from April through June. If the oil rate is sustained, this may be the first indication of the arrival of the oil bank mobilized by carbon dioxide injection. A sustained fluid withdrawal rate of about 200 B/D from CO2#12 and CO2#13 appears to be necessary to obtain higher oil rates. There is no evidence that the oil bank generated by injection of carbon dioxide has reached either production well. Continued injection of water is planned to displace oil mobilized by carbon dioxide to the production wells and to maintain the pressure in the PPV region at a level that supports continued miscible displacement as the carbon dioxide is displaced by the injected water.

Upcoming Events

8/20-22, 2006 69th Annual KIOGA Meeting
Wichita Airport Hilton, Wichita, Kansas

8/21/2006 New Approaches and Economics of Gel Treatments to Increase Oil Produc- tion in Arbuckle Wells (KIOGA)
Wichita Airport Hilton, Wichita, Kansas

9/12/2006 Midcontinent Oil & Gas Expo and Prospect Fair
Highland Hotel & Convention Center, Great Bend, Kansas

9/13/2006 Western Kansas Chapter of the API Golf Tournament
The Club at Stoneridgee Golf Course, Great Bend, Kansas

9/14/2006 Analyzing Mature Reservoirs in East ern Kansas for Additional Reserves
Holiday Park Inn, Chanute, Kansas

9/15-16, 2006 Annual EKOGA Meeting
Chanute, Kansas

9/15/2006 Updating Coalbed Methane Production in Eastern Kansas (EKOGA)
Chanute, Kansas

11/16/2006 Crash Course in Log Analysis
Kansas Geological Survey, Lawrence, Kansas

11/17/2006 Log Analysis Using PfEFFER Software
Nichols Hall, Lawrence, Kansas


Expo and Awards | Workshop In Chanute | Crude Oil Facts, TORP info | Midcontinent O&G Expo - More Info| PTTC Casing Integrity Workshops,CO2 Pilot Update,Upcoming Events


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Last Modified August 2006