Egdon Resources plc announced “significant potential” from analysis of the downhole hole pressure data of the Wressle-1 well, East Yorkshire.
POTENTIAL
Independent energy consultancy ERCE conducted the interpretation on behalf of project partners Egdon (operator – 30%), Europa Oil & Gas (Holdings) plc (30%) and Union Jack Oil (40%).
Egdon said in a statement that the potential production rates could be achieved with optimisation of surface facilities and establishment of a gas utilisation scheme.
ESTIMATES
“Based on the current reservoir pressure and a flowing tubing head pressure of 400 pounds per square inch gauge (psig), ERCE estimates that a rate of 1,216 barrels of oil per day (bopd) would be achievable, whilst maintaining a flowing bottom hole pressure above the oil saturation pressure (bubble point*).
“At 300 psig flowing tubing head pressure, ERCE estimates the well could flow at a rate of 1,543 bopd whilst at the oil bubble point.
“ERCE estimates a reservoir permeability of 80 millidarcies, and the analysis also confirmed the effectiveness of the proppant squeeze in reducing the skin factor from 107 to 0.2.”
The skin factor is an estimate of the impairment to flow within the reservoir caused during drilling, completion or the original testing operations.
OPTIMISATION
Egdon managing director Mark Abbott said that conclusions of the analysis demonstrated the possible production rates from the Ashover Grit reservoir interval.
“We continue to work to realise the full commercial potential of the Wressle field.
“This will be achieved through optimising the production facilities, progressing options for gas monetisation and advancing the development plan for production from the Wingfield Flags and Penistone Flags reservoirs.”
*The bubble point is defined as the pressure at which the first bubble of gas appears at a specific temperature.