IGas has reported the results of its studies of the Lower Carboniferous shale, including the Bowland Shale, under its licences in the North West of England, an area of 300 square miles.
The company has constructed a geological model utilising 330kms of reprocessed seismic lines, subsurface data (including cores, logs) from around 20 offset wells and geological data from IGas’s well at Ince Marshes.
This data has been analysed to give estimates of the reservoir characteristics of the shale formations and the thickness of the shale.
Based on this model, IGas estimated the volume of 'gas initially in place' (GIIP) associated with the shales in the North West, including the Bowland Shale, as ranging between a low of 15.1 Tcf and high of 172.3 Tcf, with 102.0 Tcf given as the 'most likely' volume.
These estimates cover an area of 300 square miles giving an average mid case in place volume of around 340Bcf/ square mile with a range of 93Bcf/square mile to 677Bcf/square mile across the IGas North West acreage.
The proposed drilling programme, which will commence in Q4 2013, in the North West, is at an advanced stage.
Long lead items such as wellheads and casings, have now been ordered and negotiations with drilling and related service companies are well advanced.
“The announcement of the gas in place volumes of up to about 170Tcf in our North West acreage follows the completion of a very thorough study by the IGas technical team, said Andrew Austin, IGas CEO
The finding, he said, support the view that these licences have a very significant shale gas resource with the potential to transform the company and materially benefit the communities in which we operate.
The planned drilling programme, commencing later this year, will further refine these estimates and advance our understanding of this shale basin. We will in due course carry out further analysis and reinterpretation of existing seismic and subsurface data to evaluate the potentially prospective Shale resources in the East Midlands and Weald Basin licence areas.”