Hydraulic port collar

• US 10,641,061 B2
• Filed: 09/22/2017
• Issued: 05/05/2020
• Est. Priority Date: 09/23/2016
• Status: Active Grant

• Current Assignee: TAM International Incorporated
• Original Assignee: TAM International Incorporated
• Inventors: Bowersock, Justin, Garcia, Luis
• Primary Examiner(s): Wright, Giovanna C
• Application Number:
  US16/332,972
• Publication Number:
  US 20190277109A1
• Time in Patent Office: 956 Days
• CPC Class Codes: E21B 2200/06 Sleeve valves
• CPC Class Codes: E21B 29/02 by explosives or by thermal or chemical means freeing stuck objects by explosives E21B31/002
• CPC Class Codes: E21B 33/14 for cementing casings into boreholes
• CPC Class Codes: E21B 33/146 Stage cementing, i.e. discharging cement from casing at different levels
• CPC Class Codes: E21B 34/063 Valve or closure with destructible element, e.g. frangible disc E21B34/103 takes precedence
• CPC Class Codes: E21B 34/10 operated by control fluid supplied from outside the borehole
• CPC Class Codes: E21B 34/102 with means for locking the closing element in open or closed position E21B34/105 and E21B34/108 take precedence
• CPC Class Codes: E21B 34/103 with a shear pin
• CPC Class Codes: E21B 34/142 unsupported or free-falling elements, e.g. balls, plugs, darts or pistons

Abstract

A hydraulic port collar includes a housing having one or more housing ports. The hydraulic port collar includes a port collar bore disposed within the housing forming an inner surface of the housing. The hydraulic port collar includes a sliding sleeve disposed within the port collar bore. The sliding sleeve has a sliding sleeve inner surface and a sliding sleeve outer surface. The hydraulic port collar includes a dissolvable or fragmentable landing seat radially aligned with and abutting the sliding sleeve inner surface.

Claims

1. A hydraulic port collar comprising:

a housing, the housing including one or more housing ports;

a port collar bore disposed within the housing, the port collar bore forming an inner surface of the housing;

a sliding sleeve disposed within the port collar bore, the sliding sleeve having a sliding sleeve inner surface and a sliding sleeve outer surface;

a fragmentable landing seat, the fragmentable landing seat radially aligned with and abutting the sliding sleeve inner surface, the fragmentable landing seat including a fragmentable flange and a seat body, the fragmentable flange mechanically coupled to the sliding sleeve, the fragmentable flange and seat body being selectively decoupleable, the fragmentable landing seat formed as a single member, the fragmentable landing seat comprising an annular shear slot formed in the fragmentable flange such that the fragmentable flange and seat body decouple when a preselected threshold is reached, the fragmentable landing seat including a plurality of longitudinal shear slots formed in the fragmentable flange, the longitudinal shear slots formed to intersect the annular shear slot such that once the annular shear slot shears, the fragmentable flange is separated into a plurality of flange fragments.

2. The hydraulic port collar of claim 1, wherein at least one longitudinal shear slot is formed at an angle to a radius of the fragmentable flange.

3. The hydraulic port collar of claim 2, wherein at least one longitudinal shear slot is formed at an angle to a radius of the fragmentable flange that is different than the angle of a second longitudinal shear slot.

4. The hydraulic port collar of claim 1, wherein the seat body is formed such that a ball, dart, or plug engages the seat body.

5. A hydraulic port collar comprising:

a housing, the housing including one or more housing ports;

a port collar bore disposed within the housing, the port collar bore forming an inner surface of the housing;

a sliding sleeve disposed within the port collar bore, the sliding sleeve having a sliding sleeve inner surface and a sliding sleeve outer surface;

a fragmentable landing seat, the fragmentable landing seat radially aligned with and abutting the sliding sleeve inner surface, the fragmentable landing seat including a fragmentable flange and a seat body, the fragmentable flange mechanically coupled to the sliding sleeve, the fragmentable flange and seat body being selectively decoupleable, the fragmentable flange formed separately from the seat body, wherein the fragmentable flange is mechanically coupled to the seat body by one or more temporary couplers, wherein the temporary couplers comprise one or more of shear bolts, shear pins, shear screws, wires, frangible pin, frangible ring, collet in detent groove, magnetic retainer, adhesive breakable under load, welding or brazing breakable under load, tensile stud breakable under load, or ball detents with spring.

6. A method comprising:

providing a hydraulic port collar, the hydraulic port collar including;

a housing, the housing including one or more housing ports;

a port collar bore disposed within the housing, the port collar bore forming an inner surface of the housing;

a sliding sleeve disposed within the port collar bore, the sliding sleeve having a sliding sleeve inner surface and a sliding sleeve outer surface;

a fragmentable landing seat, the fragmentable landing seat radially aligned with and abutting the sliding sleeve inner surface, the fragmentable landing seat including a fragmentable flange and a seat body, the fragmentable flange mechanically coupled to the sliding sleeve, the fragmentable flange and seat body being selectively decoupleable;

forming an annular shear slot in the fragmentable flange;

forming a plurality of longitudinal shear slots in the fragmentable flange such that the longitudinal shear slots intersect the annular shear slot;

positioning the hydraulic port collar within a wellbore;

increasing the pressure in the port collar bore;

shifting the sliding sleeve upwardly;

engaging a ball, dart, or plug with the fragmentable landing seat increasing the pressure in the port collar bore above a preselected threshold;

decoupling the fragmentable flange from the seat body by separating the fragmentable flange from the seat body at the annular shear slot;

separating the fragmentable flange into a plurality of flange fragments; and

allowing the flange fragments to fall into the port collar bore.

7. A method comprising:

providing a hydraulic port collar, the hydraulic port collar including;

a housing, the housing including one or more housing ports;

a port collar bore disposed within the housing, the port collar bore forming an inner surface of the housing;

a sliding sleeve disposed within the port collar bore, the sliding sleeve having a sliding sleeve inner surface and a sliding sleeve outer surface;

a fragmentable landing seat, the fragmentable landing seat radially aligned with and abutting the sliding sleeve inner surface, the fragmentable landing seat including a fragmentable flange and a seat body, the fragmentable flange mechanically coupled to the sliding sleeve, the fragmentable flange and seat body being selectively decoupleable, wherein the seat body and fragmentable flange are formed separately;

providing the seat body and fragmentable flange;

mechanically coupling the fragmentable flange to the seat body by one or more temporary couplers, wherein the temporary couplers comprise one or more of shear bolts, shear pins, shear screws, wires, frangible pin, frangible ring, collet in detent groove, magnetic retainer, adhesive breakable under load, welding or brazing breakable under load, tensile stud breakable under load, or ball detents with spring;

positioning the hydraulic port collar within a wellbore;

increasing the pressure in the port collar bore;

shifting the sliding sleeve upwardly;

engaging a ball, dart, or plug with the fragmentable landing seat;

increasing the pressure in the port collar bore above a preselected threshold; and

decoupling the fragmentable flange from the seat body.