Burleson Energy (ASX:BUR) has developed a plan to test water levels at one of the frac sleeves at its development well at the Heintschel field in Texas.
The company plans to set a retrievable packer below the frac sleeve and test flow from frac slots 1 through 5 through production tubing. The test flow is likely to start next week.
Burleson had earlier reported that it suspected the frac sleeve 6, which is closest to the horizontal section, was producing abnormal quantities of water.
If the water flow is significantly reduced relative to gas flow, then water influx into sleeve 6 can be significantly fixed. However, in the event of frac sleeve 6 being still inundated, it can be potentially squeezed off and the well produced from the first 5 sleeves.
Burleson said that the cost of the work is estimated to be around $120,000, with about half of it already budgeted for in the original well plan.
The well was already brought on to gas sales last month, with it flowing at a restricted rate of 1.5 thousand cubic feet of gas and about 70 barrels of condensate per day.
Burleson's earlier attempts at locating the frac with water influx was unsuccessful with spinner surveys not yielding diagnostic information,
However, ancillary temperature information recorded in the first run indicated that frac slot 6 is possibly producing water at abnormally high rates.
The Heintschel field is a substantial gas-condensate discovery hosted by Wilcox Formation tight sand reservoirs in Colorado County, Texas. The development well is located 785 metres from Burleson’s established producing Truchard #1 (vertical) well and is the fourth well on the Heintschel gas condensate field - and is the first horizontal development well.
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