Method and system for recirculating fluid in a well system
First Claim
1. A method for recirculating fluid in a well system, comprisingdrilling a first well bore from a surface to a subterranean zone;
- drilling an articulated well bore from the surface to the subterranean zone, the articulated well bore intersecting the first well bore at a junction proximate the subterranean zone;
drilling a drainage bore from the junction into the subterranean zone;
receiving gas, water, and particles produced from the subterranean zone at the junction via the drainage bore;
receiving gas, water, and particles from the junction at the surface;
separating the water received at the surface from the gas and the particles received at the surface;
determining a bottom hole pressure;
determining an amount of separated water to recirculate based at least in part on the bottom hole pressure; and
recirculating a portion of the separated water into the junction from the surface according to the determination.
5 Assignments
0 Petitions
Accused Products
Abstract
A method for recirculating fluid in a well system includes drilling a first well bore from a surface to a subterranean zone, and drilling an articulated well bore that is horizontally offset from the first well bore at the surface and that intersects the first well bore at a junction proximate the subterranean zone. The method also includes drilling a drainage bore from the junction into the subterranean zone, and receiving gas, water and particles produced from the subterranean zone at the junction via the drainage bore. The gas, water, and particles are received from the junction at the surface, and the water is separated from the gas and the particles. The method also includes determining an amount of water to circulate, and recirculating a portion of the separated water according to this determination.
353 Citations
37 Claims
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1. A method for recirculating fluid in a well system, comprising
drilling a first well bore from a surface to a subterranean zone; -
drilling an articulated well bore from the surface to the subterranean zone, the articulated well bore intersecting the first well bore at a junction proximate the subterranean zone; drilling a drainage bore from the junction into the subterranean zone; receiving gas, water, and particles produced from the subterranean zone at the junction via the drainage bore; receiving gas, water, and particles from the junction at the surface; separating the water received at the surface from the gas and the particles received at the surface; determining a bottom hole pressure; determining an amount of separated water to recirculate based at least in part on the bottom hole pressure; and recirculating a portion of the separated water into the junction from the surface according to the determination. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A multi-well system, comprising:
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a first well bore extending from a surface to a subterranean zone; an articulated well bore extending from the surface to the subterranean zone, the articulated well bore intersecting the first well bore at a junction proximate the subterranean zone; a drainage bore extending from the junction into the subterranean zone; and a separation/recirculation system operable to; receive, at the surface, gas, water, and particles produced from the subterranean zone via the drainage bore; separate the water from the gas and the particles; determine an amount of the separated water to recirculate based at least in part on a bottom hole pressure; and recirculate a portion of the separated water into the junction from the surface according to the determination. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method for recirculating fluid in a well system, comprising:
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drilling a well bore from a surface to a subterranean zone; receiving gas, water, and particles produced from the subterranean zone in the well bore; receiving gas, water, and particles from the well bore at the surface; separating the water received at the surface from the gas and the particles received at the surface; determining a bottom hole pressure in the well bore; determining an amount of separated water to recirculate based at least in part on the desired bottom hole pressure; and recirculating a portion of the separated water into the well bore from the surface according to the determination. - View Dependent Claims (24, 25, 26, 27)
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28. A well system, comprising:
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a well bore extending from a surface to a subterranean zone; and a separation/recirculation system operable to; receive, at the surface, gas, water, and particles produced from the subterranean zone via the well bore; separate the water from the gas and the particles; determine an amount of the separated water to recirculate based at least in part on a bottom hole pressure and; and recirculate a portion of the separated water into the well bore from the surface according to the determination. - View Dependent Claims (29, 30, 31, 32, 33)
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34. A method for recirculating fluid in a well system, comprising:
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drilling a well bore from a surface to a subterranean zone; receiving gas, water, and particles produced from the subterranean zone at the surface; receiving gas, water, and particles from the junction at the surface; separating the water received at the surface from the gas and the particles received at the surface; determining an amount of separated water to recirculate based at least in part on an amount of particles received at the surface; and recirculating a portion of the separated water into the well bore from the surface according to the determination. - View Dependent Claims (35)
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36. A well system, comprising:
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a well bore extending from a surface to a subterranean zone; and a separation/recirculation system operable to; receive, at the surface, gas, water, and particles produced from the subterranean zone; separate the water from the gas and the particles; determine an amount of the separated water to recirculate based at least in part on an amount of particles received at the surface; and recirculate a portion of the separated water into the well bore from the surface according to the determination. - View Dependent Claims (37)
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Specification