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1. WO2020117069 - PACKER SETTING DEVICE

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[ EN ]

Claims

1. Packer setting device, comprising:

- a tubular (10) with a plug housing (14), said plug housing having an internal, through running boring (12) with an internal wall (12a),

- a breakable plug (16) seated on a load ring (22) axially movable within the boring (12) between a first position in where the plug (16) is with a distance to a breaking pin (18) and a second position in where the plug (16) is forced against the breaking pin (18), characterized in that

- said load ring (22) is resting on a shear ring (20) with an annular shear lip (20a) to prevent axial movement in the first position until the shear lip (20a) is subjected to a force higher than a predetermined force, wherein the annular shear lip (20a) of the shear ring (20) extend radially inward in the boring (12), and

- the breaking pin (18) is resting on the shear ring (20), and said breaking pin (18) is accommodated in a pocket (28) on an outside of the load ring (22).

2. Packer setting device according to claim 1 , wherein the breaking pin (18) is resting on an axially extending part (20b) of the shear ring (20).

3. Packer setting device according to claim 1 , wherein said pocket (28) accommodating the breaking pin (18) is a longitudinal and axial slit on the outside of the load ring (22).

4. Packer setting device according to claim 1 , wherein the breakable plug (16) comprises a doughnut shaped seat (16a) made of breakable material, and a dissolvable insert (16b) made of dissolvable material.

5. Packer setting device according to claim 4, wherein the dissolvable insert (16b) is inserted or integrated in a central opening of the doughnut shaped seat (16a).

6. Packer setting device according to claim 1 , wherein the breakable plug (16) comprises a doughnut shaped seat (16a) made of breakable material, and a non return valve (40) disposed in a central opening of the doughnut shaped seat (16a).

7. Packer setting device according to claim 6, wherein the non-return valve (40) in a first position is open to allow fluid flow through the valve, and in a second position, when the tubing (10) is pressurized from top, the non-return valve (40) is closed to seal the plug (16).

8. Packer setting device according to claim 6, wherein the non-return valve (40) comprises a first annular peg (42) with a number of radial openings (46), and a second annular peg (44) with an axial peg boring (52), said second annular peg (44) being inserted in the first annular peg (42).

9. Packer setting device according to claim 7, wherein the non-return valve (40) comprises a locking ring (50) locking the valve (40) in the second sealed position.

10. Packer setting device according to claim 9, wherein the non-return valve (40) is dissolvable.