PLUGGING DEVICES AND DEPLOYMENT IN SUBTERRANEAN WELLS
First Claim
1. A method of plugging an opening in a subterranean well, the method comprising:
- deploying a plugging device into the well, the plugging device including a body, and an outer material enveloping the body, the outer material having a greater flexibility than a material of the body; and
conveying the plugging device by fluid flow into engagement with the opening, the body preventing the plugging device from extruding through the opening, and the outer material blocking the fluid flow between the body and the opening.
1 Assignment
0 Petitions
Accused Products
Abstract
A method can include deploying a plugging device into a well, the plugging device including a body, and an outer material enveloping the body and having a greater flexibility than a material of the body, and conveying the plugging device by fluid flow into engagement with the opening, the body preventing the plugging device from extruding through the opening, and the outer material blocking the fluid flow between the body and the opening. In another method, the plugging device can include at least two bodies, and a washer element connected between the bodies, the washer element being generally disk-shaped and comprising a hole, a line extending through the hole and connected to the bodies on respective opposite sides of the washer element, the washer element preventing the plugging device from being conveyed through the opening, and the washer element blocking the fluid flow through the opening.
37 Citations
25 Claims
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1. A method of plugging an opening in a subterranean well, the method comprising:
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deploying a plugging device into the well, the plugging device including a body, and an outer material enveloping the body, the outer material having a greater flexibility than a material of the body; and conveying the plugging device by fluid flow into engagement with the opening, the body preventing the plugging device from extruding through the opening, and the outer material blocking the fluid flow between the body and the opening. - View Dependent Claims (2, 3, 4)
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5. A method of plugging an opening in a subterranean well, the method comprising:
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deploying a plugging device into the well, the plugging device including at least two bodies, and a washer element connected between the bodies, the washer element being generally disk-shaped and comprising a hole, a line extending through the hole and connected to the bodies on respective opposite sides of the washer element; and conveying the plugging device by fluid flow into engagement with the opening, the washer element preventing the plugging device from being conveyed through the opening, and the washer element blocking the fluid flow through the opening. - View Dependent Claims (6, 7, 8, 9, 10, 11)
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12. A method of completing a well, the method comprising:
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conveying a bottom hole assembly into the well on a conveyance, the bottom hole assembly comprising at least one perforator; forming perforations in the well with the perforator; then displacing the bottom hole assembly further into the well, thereby extending the conveyance longitudinally across the first perforations; and then flowing a stimulation fluid into the first perforations. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A method of completing a well, the method comprising:
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perforating a first zone with a perforator of a bottom hole assembly in the well; fracturing the first zone; perforating a second zone; and fracturing the second zone, wherein the first zone perforating, the first zone fracturing, the second zone perforating and the second zone fracturing are performed without withdrawing the bottom hole assembly from the well. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25)
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Specification