Method for making a well for removing fluid from a desired subterranean formation
First Claim
1. A method for making a well for removing fluid from a desired subterranean formation comprising:
- (a) providing an interface zone;
(b) providing a main directional well bore that extends from a top surface at ground level into the desired subterranean formation and is coupled to the interface zone;
(c) providing a lateral well bore coupled to the interface zone;
(d) providing a directional sump bore that is coupled to the interface zone, the directional sump bore extends from the interface zone to a point below the interface zone; and
(e) providing means for moving fluid from the directional sump bore from the point below the interface zone through the main directional well bore to the top surface.
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Accused Products
Abstract
An improved method for making a well for removing fluid from a desired subterranean formation. This invention provides for a method for making a well for removing fluid from a desired subterranean formation having an interface zone. The interface zone is coupled to a main directional well bore that extends from a top surface at ground level into the desired subterranean formation. A lateral well bore is also coupled to the interface zone. A directional sump bore is also coupled to the interface zone and the directional sump bore extends from the interface zone to a point below the interface zone. There is also a means for moving fluid from the directional sump bore through the main directional well bore to the top surface.
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Citations
16 Claims
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1. A method for making a well for removing fluid from a desired subterranean formation comprising:
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(a) providing an interface zone;
(b) providing a main directional well bore that extends from a top surface at ground level into the desired subterranean formation and is coupled to the interface zone;
(c) providing a lateral well bore coupled to the interface zone;
(d) providing a directional sump bore that is coupled to the interface zone, the directional sump bore extends from the interface zone to a point below the interface zone; and
(e) providing means for moving fluid from the directional sump bore from the point below the interface zone through the main directional well bore to the top surface. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for making a well for removing fluid from a desired subterranean formation comprising:
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(a) providing a main directional well bore that extends from a top surface at ground level into the desired subterranean formation;
(b) inserting an intermediate casing having an attached external parasite tube that extends from the top surface to a point of intersection with the intermediate casing;
(c) inserting air pressure down the parasite tube;
(d) inserting drilling fluid down a drill string within the intermediate casing to create a hydrostatic pressure less than a desired subterranean zone breakdown pressure which provides an underbalanced drilling environment and facilitates the removal of cuttings and drilling fluid to be circulated to the top surface at ground level through the intermediate casing;
(e) drilling an interface zone that is coupled to the main directional well using the underbalanced drilling environment;
(f) drilling a lateral well bore that is coupled to the interface zone using the underbalanced drilling environment;
(g) drilling a directional sump bore that is coupled to the interface zone using the underbalanced drilling environment, the directional sump bore extends from the interface zone to a point below the interface zone; and
(h) providing means for moving fluid from the directional sump bore from the point below the interface zone through the main directional well bore to the top surface. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification