Packer variable volume excluder and sampling method therefor
First Claim
1. A method comprising:
- disposing a downhole apparatus into a borehole;
expanding at least a first expandable packer and a second expandable packer within a borehole, and sealing the first expandable packer and the second expandable packer with the borehole, the first expandable packer is longitudinally spaced from the second expandable packer and defining a space between the first expandable packer and the second expandable packer, one or more ports disposed between the first expandable packer and the second expandable packer;
allowing fluid in the space to separate into separated fluids; and
selectively pumping at least one of the separated fluids out of the space through the one or more ports.
1 Assignment
0 Petitions
Accused Products
Abstract
A down hole apparatus includes a first expandable packer and a second expandable packer, where the first expandable packer longitudinally spaced from the second expandable packer. The apparatus further includes an optional expandable bladder disposed at a longitudinal location between the first expandable packer and the second expandable packer. The expandable bladder inflates to displace drilling fluid between the first and second bladder elements. The down hole apparatus can optionally displace drilling fluid between the first and second bladder elements with another fluid. Fluids and/or slurry can be selectively removed using ports between the first and second expandable packers, and optionally placed in sample chambers, or expelled to the bore hole.
-
Citations
23 Claims
-
1. A method comprising:
-
disposing a downhole apparatus into a borehole; expanding at least a first expandable packer and a second expandable packer within a borehole, and sealing the first expandable packer and the second expandable packer with the borehole, the first expandable packer is longitudinally spaced from the second expandable packer and defining a space between the first expandable packer and the second expandable packer, one or more ports disposed between the first expandable packer and the second expandable packer; allowing fluid in the space to separate into separated fluids; and selectively pumping at least one of the separated fluids out of the space through the one or more ports. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A method comprising:
-
disposing a downhole apparatus into a borehole; expanding at least a first expandable packer and a second expandable packer within a borehole, and sealing the first expandable packer and the second expandable packer with the borehole, the first expandable packer is longitudinally spaced from the second expandable packer and defining a space between the first expandable packer and the second expandable packer; and displacing fluid trapped between the first expandable packer and the second expandable packer using an inflatable bladder. - View Dependent Claims (15, 16, 17, 18, 19)
-
-
20. A down hole apparatus comprising:
-
a first expandable packer and a second expandable packer disposed along a down hole tool, the first expandable packer longitudinally spaced from the second expandable packer; a volume excluder bladder disposed at a longitudinal location between the first expandable packer and the second expandable packer; and one or more ports disposed longitudinally between the first expandable packer and the second expandable packer, wherein the ports include a first upper port and a second lower port, and further comprising a first pump operatively coupled with the first upper port, and a second pump operatively coupled with the second lower port. - View Dependent Claims (21, 22, 23)
-
Specification