초록 ▼

The invention provides an apparatus and method for perforating and treating multiple intervals of one or more subterranean formations intersected by a wellbore by deploying a bottom-hole assembly ("BHA") having a perforating device and at least one sealing mechanism within said wellbore. The BHA may

The invention provides an apparatus and method for perforating and treating multiple intervals of one or more subterranean formations intersected by a wellbore by deploying a bottom-hole assembly ("BHA") having a perforating device and at least one sealing mechanism within said wellbore. The BHA may be deployed in the wellbore using a tubing string or cable; or alternatively, the BHA may be deployed using a tractor system attached directly to the BHA. The perforating device is used to perforate the first interval to be treated. Then the BHA is positioned within the wellbore such that the sealing mechanism, when actuated, establishes a hydraulic seal in the wellbore to positively force fluid to enter the perforations corresponding to the first interval to be treated. A treating fluid is then pumped down the wellbore and into the perforations created in the perforated interval. The sealing mechanism is released, and the steps are then repeated for as many intervals as desired, without removing the BHA from said wellbore.

대표청구항 ▼

1. A method for perforating and treating multiple intervals of one or more subterranean formations intersected by a wellbore, said method comprising: (a) deploying a bottom-hole assembly ("BHA") using a deployment means within said wellbore, said BHA having a perforating device and a sealing mechani

1. A method for perforating and treating multiple intervals of one or more subterranean formations intersected by a wellbore, said method comprising: (a) deploying a bottom-hole assembly ("BHA") using a deployment means within said wellbore, said BHA having a perforating device and a sealing mechanism; (b) positioning said BHA within said wellbore using a depth-control device; (c) using said perforating device to perforate said interval; (d) actuating said sealing mechanism so as to establish a hydraulic seal in said wellbore; (e) pumping a treating fluid in said wellbore and into the perforations created by said perforating device, without removing said perforating device from said wellbore; (f) releasing said sealing mechanism; and (g) repeating steps (b) through (f) for at least one additional interval of said one or more subterranean formations.