Valve for hydraulic fracturing through cement outside casing
DCFirst Claim
Patent Images
1. A valve comprising:
- a housing having one or more openings,a mandrel having one or more openings positioned within the housing,a sliding sleeve disposed between the housing and the mandrel and blocking fluid communication between the openings in the housing and the openings in the mandrel when the valve is in the closed position and permitting fluid flow between the openings in the mandrel and the openings in the housing when the valve is in the open position; and
one or more rupture disks disposed in a wall of the mandrel.
11 Assignments
Litigations
0 Petitions
Accused Products
Abstract
A valve for use in fracing through cement casing in a well allows for flow of cement down the well during the cementing process and in the open position allows for fracing fluid to be directed through the cement casing for fracturing the formation adjacent the valve. The valve is constructed so as to reduce the likelihood of the valve to jam as a result of cement or other foreign material.
83 Citations
32 Claims
-
1. A valve comprising:
-
a housing having one or more openings, a mandrel having one or more openings positioned within the housing, a sliding sleeve disposed between the housing and the mandrel and blocking fluid communication between the openings in the housing and the openings in the mandrel when the valve is in the closed position and permitting fluid flow between the openings in the mandrel and the openings in the housing when the valve is in the open position; and one or more rupture disks disposed in a wall of the mandrel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A method for actuating a valve, the method comprising:
-
flowing a fluid through the valve, the valve comprising; a housing having one or more openings; a mandrel having one or more openings, a passageway, and a rupture disk disposed in the passageway; and a sliding sleeve disposed between the housing and the mandrel; rupturing the rupture disk at a selected fluid pressure; flowing fluid through the passageway to the sliding sleeve; moving the sliding sleeve axially downward within the valve;
exiting fluid through the one or more openings of the housing and mandrel; andcracking a cement casing with the fluid. - View Dependent Claims (13, 14, 15, 16, 18)
-
-
17. A valve comprising:
-
a housing having an opening; a mandrel disposed in the housing, the mandrel having an opening; a rupture disk disposed in a passageway of the mandrel, wherein the passageway is axially above the housing and mandrel openings; and a sliding sleeve disposed in a chamber formed between the housing and the mandrel.
-
-
19. A valve comprising:
-
a housing having one or more openings; a mandrel having one or more openings disposed within the housing; a rupture disk disposed in a passageway of the mandrel, wherein the passageway is axially above the one or more housing and mandrel openings; a chamber between the housing and the mandrel; and a sliding sleeve disposed within the chamber, wherein in a closed position the sliding sleeve is isolated from fluid flow through the valve and wherein in an open position fluid flow contacts the sliding sleeve and flows through the one or more openings in the housing and the mandrel. - View Dependent Claims (20)
-
-
21. A valve comprising:
-
a housing having one or more openings, a mandrel having one or more openings positioned within the housing, a sliding sleeve disposed between the housing and the mandrel and blocking fluid communication between the openings in the housing and the openings in the mandrel when the valve is in the closed position and permitting fluid flow between the openings in the mandrel and the openings in the housing when the valve is in the open position; a locking ring holder attached to the sliding sleeve; a locking ring positioned within the locking ring holder; and a set of ratcheting teeth on the outer surface of the mandrel adapted to engage with ratcheting teeth on the locking ring. - View Dependent Claims (22, 23, 24, 25, 26)
-
-
27. A method for actuating a valve, the method comprising:
-
flowing a fluid through the valve, the valve comprising; a housing having one or more openings; a mandrel having one or more openings, a passageway, and a rupture disk disposed in the passageway; and a sliding sleeve disposed between the housing and the mandrel; rupturing the rupture disk at a selected fluid pressure; flowing fluid through the passageway to the sliding sleeve; moving the sliding sleeve axially downward within the valve; and exiting fluid through the one or more openings of the housing and mandrel; and pumping cement through the valve into a wellbore. - View Dependent Claims (28, 29, 30)
-
-
31. A method for actuating a valve, the method comprising:
-
flowing a fluid through the valve, the valve comprising; a housing having one or more openings; a mandrel having one or more openings, a passageway, and a rupture disk disposed in the passageway; and a sliding sleeve disposed between the housing and the mandrel; rupturing the rupture disk at a selected fluid pressure; flowing fluid through the passageway to the sliding sleeve; moving the sliding sleeve axially downward within the valve; exiting fluid through the one or more openings of the housing and mandrel; and engaging permanently the sliding sleeve with the mandrel. - View Dependent Claims (32)
-
Specification