Mineral Resources Regulation 2025

If the drilling of a CSG well under a coal or oil shale mining lease is completed, the holder of the lease must lodge a report (a CSG well completion report) about the completion of the CSG well within 12 months after the rig release day for the CSG well.

The CSG well completion report must contain the following—

the number of the lease;

the identifying name of the CSG well;

the name and postal address of the operator of the CSG well;

a summary of the CSG well stating the information for the well required under the practice direction;

spatial information showing the location of the CSG well;

the height reference in metres for the drilling rig used to drill the CSG well;

the total depth in metres of the CSG well;

each of the following days—

the day the drilling of the CSG well started;

the day the total depth of the CSG well was reached;

the rig release day for the CSG well;

details of the drilling rig, the size and type of drill bits, and the drilling fluids and additives, used in the CSG well;

the status of the CSG well on the rig release day;

the surveyed path of the CSG well;

details of the casing and equipment installed in the CSG well, including a diagram showing the location of the casing and equipment in the CSG well;

the type of any perforations in the CSG well, the depth in metres of the top and bottom of each perforated interval and the perforation spacing in metres;

details of the cementing in the CSG well, including the location of the cementing, the type of cement used and the depth in metres of the top and bottom of each cemented interval;

a description of all tests and surveys carried out in the CSG well, the depth in metres where each test was carried out and the distance in metres between the top and bottom of each testing interval;

an interpretation of the data obtained from the CSG well;

an identification of the intervals in the CSG well that have the potential to produce coal seam gas;

the holder’s reasons for choosing the location of the CSG well;

the hazard information for the lease;

any other data or information required under the practice direction.

For a directional well, the CSG well completion report must also state the position of each of the following—

the stratigraphic units intersected by the CSG well;

the bottom of the CSG well;

the intersection, if any, of the CSG well with another CSG well or a petroleum well.

For subsection (3), the position must be expressed in relation to—

total vertical depth in metres; and

the horizontal plane.

The CSG well completion report must be accompanied by each of the following—

a digital image of the cores taken during the drilling of the CSG well;

the raw data, in digital form, of each geophysical (or wireline) log that has been run in the CSG well;

a digital image of the graphic representations of the raw data mentioned in paragraph (b).

In this section—

for a CSG well that is producing—producing;

for a CSG well that has temporarily stopped producing CSG—shut in;

for a CSG well that is capable of producing CSG but the productive interval in the well has not been completed for production—cased and suspended;

for a CSG well that has been plugged and abandoned—plugged and abandoned.