Heated fluid injection using multilateral wells
First Claim
1. A well system comprising:
- a main wellbore extending from a terranean surface toward a subterranean zone;
a first lateral wellbore extending from the main wellbore into the subterranean zone;
a second lateral wellbore extending from the main wellbore into the subterranean zone, the second lateral wellbore substantially parallel to the first lateral wellbore;
a liner junction device in the main wellbore having a first leg extending into the first lateral wellbore and a second leg extending downhole in the main wellbore;
a heated treatment fluid injection string that extends from in the main wellbore through the liner junction device and into the first lateral wellbore and terminates in the first lateral wellbore; and
a seal in the first lateral wellbore that seals against flow toward the main wellbore in an annulus adjacent an outer surface of the heated treatment fluid injection string.
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0 Petitions
Accused Products
Abstract
A well system includes a main wellbore extending from a terranean surface toward a subterranean zone. A first lateral wellbore extends from the main wellbore into the subterranean zone. A second lateral wellbore extends from the main wellbore into the subterranean zone. A liner junction device resides in the main wellbore and has a first leg extending into the first lateral wellbore and a second leg extending downhole in the main wellbore. A treatment fluid injection string extends from in the main wellbore through the liner junction and into the first lateral wellbore and terminates in the first lateral wellbore. A seal in the first lateral wellbore seals against flow toward the main wellbore in an annulus adjacent an outer surface of the treatment fluid injection string.
66 Citations
31 Claims
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1. A well system comprising:
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a main wellbore extending from a terranean surface toward a subterranean zone; a first lateral wellbore extending from the main wellbore into the subterranean zone; a second lateral wellbore extending from the main wellbore into the subterranean zone, the second lateral wellbore substantially parallel to the first lateral wellbore; a liner junction device in the main wellbore having a first leg extending into the first lateral wellbore and a second leg extending downhole in the main wellbore; a heated treatment fluid injection string that extends from in the main wellbore through the liner junction device and into the first lateral wellbore and terminates in the first lateral wellbore; and a seal in the first lateral wellbore that seals against flow toward the main wellbore in an annulus adjacent an outer surface of the heated treatment fluid injection string. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A well system comprising:
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a multilateral wellbore system having a main wellbore and a plurality of substantially parallel lateral wellbores that extend from the main wellbore; a liner junction device residing in the main wellbore; a liner residing in one of the lateral wellbores and coupled to the liner junction device; a heated fluid injection string extending from in the main wellbore, through the liner junction device, and terminating in the liner; and seals sealing against flow to the main wellbore from between the liner and the lateral wellbore and from between the heated fluid injection string and the liner. - View Dependent Claims (20, 21, 22, 23, 24)
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25. A method comprising:
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injecting a heated treatment fluid into a lateral injection wellbore extending from a main wellbore with a heated treatment fluid injection string that extends from the main wellbore, through a liner junction device residing in the main wellbore, into the lateral injection wellbore, and terminates in a liner residing in the lateral injection wellbore, the liner coupled to a leg of the liner junction device that extends from the main wellbore into the lateral injection wellbore; sealing an annulus adjacent an outer surface of the heated treatment fluid injection string against flow toward the main wellbore; and producing fluid from a production lateral wellbore extending from the main wellbore and spaced apart from the lateral injection wellbore. - View Dependent Claims (26, 27, 28, 29, 30, 31)
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Specification