and from Qtrly rpt 29 Oct 138 Jul 2014 23:41
Results of Well ZJS7
Well ZJS7 is located approximately three kilometres to the northeast of well ZJS5, in the central part of the 380 square kilometre central depression area. The well was drilled without safety incident to a total depth of 2,266 metres targeting the same potential pay zones as those intersected in well ZJS5.
The analysis of logs and side core samples is largely complete and the results are consistent with those previously announced from the wireline logging. Multiple potential pay zones have been encountered with cumulative intervals of around 48 metres, as well as 24 metres of coal seams.
The main target intervals have reported good porosity and in some cases very high permeability but with low resistivity, indicating the potential to flow water. In addition the gas saturation levels are lower, and the water saturation higher, than for the same zones elsewhere in the field. A detailed review is underway to understand which zones will be flow tested.
The potential pay zones intersected included deeper zones which are the main production horizons elsewhere in the Ordos Basin. These zones are yet to be evaluated in this area of the field.
Overall the initial results have so far calibrated well with the recently acquired seismic data. The interpretation of the central depression area has been confirmed as relatively flat, bounded between the outline of a large magmatic intrusion in the west and regional scale faulting in the east, and rising slightly to the north.