Well stimulation can enlarge channels and flow paths, increase pore space and make it possible for solution to move more readily from injection to recover well.
Excelsior believes creating more and better-connected flow paths can help gas bubbles exit via the recovery wells whilst also improving sweep efficiency and copper productivity.
Well stimulation can enlarge channels and flow paths, increase pore space and make it possible for solution to move more readily from injection to recover well.
Excelsior believes creating more and better-connected flow paths can help gas bubbles exit via the recovery wells whilst also improving sweep efficiency and copper productivity.
Excelsior has been working with EPA to amend its UIC permit to include well stimulation and the Company expects the amendment to be finalized early in 2023.
Excelsior’s proposed well stimulation is shallow, low-energy, and is not like “fracking” that is commonly undertaken in the energy sector.
All the injection fluids just become part of the normal processing stream, captured by the recovery wells, so there are no waste products.
Excelsior has been working with EPA to amend its UIC permit to include well stimulation and the Company expects the amendment to be finalized early in 2023.
Excelsior’s proposed well stimulation is shallow, low-energy, and is not like “fracking” that is commonly undertaken in the energy sector.
All the injection fluids just become part of the normal processing stream, captured by the recovery wells, so there are no waste products.
A leading engineering and environmental consulting firm, who are experts in hard-rock hydraulic fracture modelling, have been modelling well stimulation at the Gunnison Project.
The model uses rock strength data, fracture intensity data, down-hole geophysical logs and other datasets to produce a 3-dimensional representation of well stimulation.
A leading engineering and environmental consulting firm, who are experts in hard-rock hydraulic fracture modelling, have been modelling well stimulation at the Gunnison Project.
The model uses rock strength data, fracture intensity data, down-hole geophysical logs and other datasets to produce a 3-dimensional representation of well stimulation.
The plan view shows a typical 5-spot pattern centered on stimulated well IR_1_5474. The stimulated (dilated) pre-existing fractures are colored according to their rock type (see legend).
The 3-D view shows the pre-existing fractures that dilated (opened-up) during the stimulation events. The red colored features represent newly created fractures.
Modelling indicates pre-existing fractures are stimulated in preference to creating new fractures.
The plan view shows a typical 5-spot pattern centered on stimulated well IR_1_5474. The stimulated (dilated) pre-existing fractures are colored according to their rock type (see legend).
The 3-D view shows the pre-existing fractures that dilated (opened-up) during the stimulation events. The red colored features represent newly created fractures.
Modelling indicates pre-existing fractures are stimulated in preference to creating new fractures.
Modelling results for well IR_1_5270 were very similar to IR_1_5474 and the other wells modelled.
The other wells of this 5-spot pattern could also be stimulated to create a vast and overlapping network of dilated pre-existing structures.
Modelling results for well IR_1_5270 were very similar to IR_1_5474 and the other wells modelled.
The other wells of this 5-spot pattern could also be stimulated to create a vast and overlapping network of dilated pre-existing structures.
Excelsior intends to undertake field trials of well stimulation in the first half of 2023 (subject to EPA approval).
Successful field trials could lead to rapid commercialization of the technique whereby it becomes part of Excelsior’s copper production process.
The scientific and technical information contained in this news release has been reviewed and approved by Roland Goodgame, Member of the Australian Institute of Geoscientists MAIG, SVP Business Development of Excelsior, and a Qualified Person as defined by National Instrument 43-101. Mr. Goodgame has reviewed and approved the scientific and technical information contained in this news release and underlying data.
Excelsior intends to undertake field trials of well stimulation in the first half of 2023 (subject to EPA approval).
Successful field trials could lead to rapid commercialization of the technique whereby it becomes part of Excelsior’s copper production process.
The scientific and technical information contained in this news release has been reviewed and approved by Roland Goodgame, Member of the Australian Institute of Geoscientists MAIG, SVP Business Development of Excelsior, and a Qualified Person as defined by National Instrument 43-101. Mr. Goodgame has reviewed and approved the scientific and technical information contained in this news release and underlying data.
