APPARATUS AND METHOD FOR JET PERFORATING AND CUTTING TOOL

• US 20150075793A1
• Filed: 09/13/2013
• Published: 03/19/2015
• Est. Priority Date: 09/13/2013
• Status: Active Grant

• Current Assignee: TD Tools, Inc.
• Original Assignee: TD Tools, Inc.
• Inventors: Dotson, Thomas L., Rhoads, Lonnie S., Farr, James. F.
• Granted Patent: US 9,822,615 B2
• Time in Patent Office: Days
• US Class Current: 166/298
• CPC Class Codes: E21B 23/02 for locking the tools or the like in landing nipples or in recesses between adjacent sections of tubing E21B23/03 - E21B23/06 take precedence
• 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 43/114 Perforators using direct fluid action on the wall to be perforated, e.g. abrasive jets
• CPC Class Codes: E21B 47/06 Measuring temperature or pressure
• CPC Class Codes: E21B 47/117 Detecting leaks, e.g. from tubing, by pressure testing

Abstract

A system and method for jet perforating within a well are disclosed. A jet perforating tool configured to be lowered inside a production tubing string comprises a tool body with a passage, an inlet in the upper section, perforating jets in the lower section, and a stepped outer diameter configured to seat on a production tubing string restriction such as a seat nipple. The tool may be lowered into the production tubing string without the need to trip the production tubing string in and out of the wellbore.

Claims

1. A jet perforating tool comprising:

a tubular tool body having an upper section and a lower section;

an inlet in the upper section, the inlet configured to accept jet cutting fluid;

a stepped outer diameter portion configured to rest on a restriction within a tubing string;

at least one seat seal, wherein the at least one seat seal separates the upper section from the lower section;

at least one hole in the lower section;

a passage through at least part of the tool body connecting the inlet to the at least one hole; and

a jet affixed to at least one hole.

2. The jet perforating tool of claim 1, further comprising a nose piece.

3. The jet perforating tool of claim 2, wherein the nose piece is selected from the group consisting of a pressure tester, a circulation sub, and a wash tool.

4. The jet perforating tool of claim 3, further comprising a threaded connection fitting connecting the tool body to the nose piece.

5. The jet perforating tool of claim 1, further comprising at least one of a retrieval rod or a fishing neck configured to facilitate tool retrieval.

6. The jet perforating tool of claim 1, wherein the stepped outer diameter comprises multiple steps.

7. The jet perforating tool of claim 1, wherein the seat seal is selected from the group consisting of plastic, rubber, compressed fiber, metal, polytetrafluoroethylene, graphite, vermiculite, cork, felt, neoprene, and fiberglass.

8. The jet perforating tool of claim 1, wherein the seat seal is an o-ring.

9. A well tool, comprising:

a tubular tool body having an upper section and a lower section;

an inlet in the upper section, the inlet configured to accept an oil well fluid;

a stepped outer diameter portion configured to rest on a restriction within a tubing string;

at least one seat seal, wherein the at least one seat seal separates the upper section from the lower section;

at least one hole in the lower section;

a passage through at least part of the tool body connecting the inlet to the at least one hole.

10. The well tool of claim 9, further comprising a plug affixed to the at least one hole.

11. The well tool of claim 9, further comprising a nose piece.

12. The well tool of claim 11, wherein the nose piece is selected from the group consisting of a pressure tester, a circulation sub, and a wash tool.

13. The well tool of claim 12, further comprising a threaded connection fitting connecting the tool body to the nose piece, wherein the at least one hole is located within the threaded connection fitting.

14. The well tool of claim 9, further comprising a retrieval rod.

15. The well tool of claim 9, wherein the stepped outer diameter comprises multiple steps.

16. The well tool of claim 9, wherein the seat seal is selected from the group consisting of plastic, rubber, compressed fiber, metal, polytetrafluoroethylene, graphite, vermiculite, cork, felt, neoprene, and fiberglass.

17. The well tool of claim 9, wherein the seat seal is an o-ring.

19. The method of claim 17, further comprising the step of first removing pump tools from the well.

20. The method of claim 17, further comprising the last step of running pump tools into the well.

21. The method of claim 17, wherein the step of perforating a portion of the well with the perforating jet tool comprises pumping jet cutting fluid through an inlet in the jet perforating tool to one or more jets.

22. The method of claim 17, wherein the portion of the well perforated is selected from the group consisting of tubing, casing, cement, formation, and reservoir.

23. The method of claim 17, wherein the step of running the jet perforating tool comprises one step from the group consisting of lowering the tool by a wireline, dropping the tool into the tubing string, and pumping the tool down the production tubing string.

18. A method for jet perforating, comprising:

positioning a tubing string at a desired perforating depth in a well;

running a jet perforating tool into the tubing string until a stepped outer diameter portion of the jet perforating tool is resting on a restriction within the tubing string;

perforating a portion of the well with the perforating jet tool;

running the jet perforating tool out of the well; and

positioning the tubing string at a desired production depth.