Method and apparatus for recovery of oil, gas and mineral deposits by panel opening

Claim 2

Method for oil, gas and mineral recovery by panel opening drilling comprising: (a) providing spaced apart injection and recovery drill holes extending along respective longitudinal axes into an underground area having a deposit bearing region, (b) drilling a first panel shaped opening outwardly of the injection hole by cutting the underground area adjacent the injection hole, said first panel shaped opening substantially facing the deposit bearing region, and (c) injecting said injection hole with a fluid under sufficient pressure to uniformly sweep the deposits in the underground area to said recovery hole for recovery of the deposits therefrom.

Claim 3

Method for oil, gas and mineral recovery by panel opening drilling comprising: (a) providing at least first, second, and third spaced apart drill holes extending along respective longitudinal axes into an underground area having a deposit bearing region, (b) drilling a panel shaped opening outwardly of each respective drill hole by cutting the underground area adjacent each drill hole, said panel shaped openings being spaced from one another and substantially parallel to one another with two of said openings being aligned substantially in a common plane and the third opening being spaced from and substantially parallel to said common plane, said third opening having portions thereof overlapping respective portions of the other two openings, at least one of said holes being an injection hole and at least another of said holes being a recovery hole, and (c) injecting a fluid into said at least one injection hole under sufficient pressure to uniformly sweep the deposits in the underground area to said at least one recovery hole for recovery of the deposits therefrom.

Claim 4

Method for oil, gas and mineral recovery by panel opening drilling comprising: (a) providing at least first, second, and third spaced apart drill holes extending along respective longitudinal axes into an underground area having a deposit bearing region, (b) drilling a panel shaped opening outwardly of each respective drill hole by cutting the underground area adjacent each drill hole, said panel shaped openings being spaced from one another and substantially parallel to one another with two of said openings being aligned substantially in a common plane and the third opening being spaced from and substantially parallel to said common plane, said third opening having portions thereof overlapping respective portions of the other two openings, at least one of said holes being an injection hole and at least another of said holes being a recovery hole, and (c) injecting a fluid into said at least one injection hole under sufficient pressure to uniformly sweep the deposits in the underground area to said at least one recovery hole for recovery of the deposits therefrom.

Claim 5

Method in accordance with either of claims 1 or 2 wherein at least one of said drill holes is substantially vertical.

Claim 6

Method in accordance with either of claims 1 or 2 wherein at least one of said drill holes is substantially horizontal.

Claim 7

Method in accordance with either of claims 1 or 2 wherein at least one of said drill holes is oblique.

Claim 8

The method of claim 1 wherein step (b) includes the further limitation that said first opening is of a predetermined shape.

Claim 9

The method of claim 1 wherein step (b) includes the further limitation that said first opening is of a predetermined shape and size.

Claim 10

The method of claim 1 wherein step (b) includes the further limitation that said first opening is of a predetermined shape, size. and orientation relative to the longitudinal axis of the injection hole.

Claim 11

The method of claim 1 wherein step (b) includes the further limitations of providing a cutting tool and oscillating said cutting tool along said longitudinal axis of said injection hole to drill said first opening in said underground region outwardly of and adjacent to said injection hole.

Claim 12

The method of claim 9 further including the limitation of rotating said cutting tool about said longitudinal axis to drill said first opening.

Claim 13

The method of claim 9 wherein said cutting tool is a jetting tool.

Claim 14

The method of claim 1 further including the step of drilling a second panel shaped opening outwardly of the recovery hole by cutting the underground area adjacent the recovery hole, said second panel shaped opening substantially facing the deposit bearing region and said first panel shaped opening.

Claim 15

The method of claim 2 wherein the openings of said first and second drill holes are the two openings aligned in said common plane, said third drill hole is the injection hole and said first and second drill holes are both recovery holes whereby said one injection hole feeds both of said recovery holes.

Claim 16

The method of claim 2 wherein the openings of said first and second drill holes are the two openings aligned in said common plane, said third hole is the recovery hole and said first and second holes are both injection holes whereby said one recovery hole is fed by two injection holes.

Claim 17

The method of claim 2 further including the steps of providing fourth and fifth drill holes extending along respective longitudinal axes into said underground area, drilling a panel shaped opening outwardly of the respective fourth and fifth drill holes by cutting the underground area adjacent the fourth and fifth drill holes, said panel shaped openings of said fourth and fifth drill holes being spaced from one another and substantially parallel to each other and substantially aligned in a second common plane spaced from and parallel to said first common plane, said fourth and fifth openings have respective portions thereof overlapping respective portions said third opening wherein the openings of said first and second drill holes are the two openings aligned in the first mentioned common plane, said third drill hole is the injection hole and said first, second, fourth, and fifth drill holes are all recovery holes whereby said one injection hole feeds all four of said recovery holes.

Claim 18

The method of claim 2 further including the steps of providing fourth and fifth drill holes extending along respective longitudinal axes into said underground area, drilling a panel shaped opening outwardly of the respective fourth and fifth drill holes by cutting the underground area adjacent the fourth and fifth drill holes, said panel shaped openings of said fourth and fifth drill holes being spaced from one another and substantially parallel to each other and substantially aligned in a second common plane spaced from and parallel to said first common plane, said fourth and fifth openings have respective portions thereof overlapping respective portions said third opening wherein the openings of said first and second drill holes are the two openings aligned in the first mentioned common plane, said third drill hole is the recovery hole and said first, second, fourth, and fifth drill holes are all injection holes whereby said one recovery hole is fed by all four of said injection holes.