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1. WO2013013234 - GUN UPSET AND NO-GO SYSTEM FOR DEPLOYMENT OF PERFORATING GUN ASSEMBLIES

Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

[ EN ]

REPLACEMENT SHEET

CLAIMS

What is claimed is:

1. A method of deploying a perforating gun assembly into a wellhead production assembly comprising the steps of:

securing a first safety clamp to a first perforating gun;

hanging the first perforating gun within the wellhead production assembly by resting the first safety clamp on a support surface;

securing a second perforating gun to the first perforating gun to form a perforating gun assembly;

securing a second safety clamp to a second perforating gun;

removing the first safety clamp; and

lowering the perforating gun assembly into the wellhead production assembly to rest the second safety clamp on the support surface.

2. The method of claim 1 wherein the first safety clamp comprises two generally semi-circular clamp halves which are moveably interconnected about a hinge.

3. The method of claim 1 wherein the support surface comprises a surface disposed on or above a rig floor on a wellhead production assembly.

4. The method of claim 1 further comprising the step of providing a no-go landing shoulder within the wellhead production assembly that is shaped and sized to engage a safety clamp in the event that the perforating gun assembly is dropped into the wellhead production assembly.

5. The method of claim 1 further comprising the steps of:

securing a third perforating gun to the second perforating gun;

securing a third safety clamp to the third perforating gun;

removing the second safety clamp from the second perforating gun; and lowering the perforating gun assembly into the wellhead production assembly to rest the third safety clamp on the support surface.

6. The method of claim 1 further comprising the step of securing a running string to the perforating gun assembly.

7. The method of claim 6 further comprising the step of removing all safety clamps from the perforating gun assembly and running the perforating gun assembly into the wellhead production assembly using the running string.

8. The method of claim 1 wherein the first safety clamp includes a ridge to engage a complimentary profile on a perforating gun.

9. The method of claim 4 wherein the no-go landing shoulder is located below a shut-in valve of the wellhead production assembly so that the wellhead production assembly can be shut off in the event that the perforating gun assembly is dropped Into the wellhead production assembly.

10. A method of deploying a perforating gun assembly into a wellhead production assembly comprising the steps of:

disposing a no-go landing shoulder within the wellhead production assembly that is shaped and sized to engage a safety clamp in the event that the perforating gun assembly is dropped Into the wellhead production assembly;

securing a first safety clamp to a first perforating gun;

hanging the first perforating gun within the wellhead production assembly by resting the first safety clamp on a support surface;

securing a second perforating gun to the first perforating gun to form a perforating gun assembly;

securing a second safety clamp to a second perforating gun;

removing the first safety clamp; and

lowering the perforating gun assembly into the wellhead production assembly to rest the second safety damp on the support surface.

11. The method of claim 10 wherein the first safety clamp comprises two generally semi-circular clamp halves which are moveably interconnected about a hinge,

12. The method of claim 10 wherein the support surface comprises a surface disposed on or above a rig floor on a wellhead production assembly.

REPLACEMENT SHEET

13. The method of claim 10 further comprising the steps of:

securing a third perforating gun to the second perforating gun;

securing a third safety clamp to the third perforating gun;

removing the second safety clamp from the second perforating gun; and lowering the perforating gun assembly into the wellhead production assembly to rest the third safety clamp on the support surface,

14. The method of claim 10 further comprising the step of securing a coiled tubing running string to the perforating gun assembly.

15. The method of claim 14 further comprising the step of removing all safety clamps from the perforating gun assembly and running the perforating gun assembly into the wellhead production assembly using the coiled tubing running string.

16. The method of claim 10 wherein the first safety clamp indudes a ridge to engage a complimentary profile on a perforating gun.

17. The method of claim 10 wherein the no-go landing shoulder is located below a shut-in valve of the wellhead production assembly so that the wellhead production assembly can be shut off in the event that the perforating gun assembly is dropped Into the wellhead production assembly.