COMPLETION PLUG FOR WELL COMPLETION

Abstract

This invention relates to a completion plug for well completion, comprising:

A first attaching means (204) located between the upper part of a running tool (100) and a safety mean (200);

A second attaching means (304) located between the middle part of the running tool (100) and a shearing mean (300);

A third attaching means (422) located between the lower part of the running tool (100) and an equalizing mean (400) having an equalizing port (430) inside it;

Wherein, in one embodiment, the completion plug is configured to equalize the well pressure by releasing the first attaching means (204) so that the equalizing shear sub (202) will reduce impact force between the equalizing means (400) and the inner of the running tool (100); and wherein the second attaching means (304) releases the running tool (100) to press an equalizing prong housing (450) connected to the lower end of the running tool (100) down in order to open the equalizing port (430) for equalizing pressure between the upper and the lower of the well.

In another embodiment, the completion plug is configured to close the well by releasing the first attaching means (204) so that the equalizing shear sub (202) will reduce impact force between the equalizing means (400) and the inner of the running tool (100); and wherein the third attaching means (422) releases the equalizing means (400) from the running tool (100) in order to make the bottom sub (500) close the well when the well is not in use for production.

Claims

1. A completion plug for well completion, comprising: a first attaching means (204) located between the upper part of a running tool (100) and a safety means (200), the safety means (200) comprising a equalizing shear sub (202), and the running tool (100) has internal space that allows internal members to move up and down; a second attaching means (304) located between the middle part of the running tool (100) and a shearing means (300), the shearing means (300) comprising a shear retainer (302) for retaining shearing force that may occur between a fishing neck (410) and the inner of the running tool (100); a third attaching means (422) located between the lower part of the running tool (100) and an equalizing means (400), an equalizing means (400) comprising a equalizing body (420) having an equalizing port (430) inside it and the fishing neck (410) for fishing the shearing means (300) to the equalizing means (400); wherein the completion plug is configured to equalize the well pressure by releasing the first attaching means (204) so that the equalizing shear sub (202) will reduce impact force between the equalizing means (400) and the inner of the running tool (100); and wherein the second attaching means (304) releases the running tool (100) to press an equalizing prong housing (450) connected to the lower end of the running tool (100) down in order to open the equalizing port (430) for equalizing pressure between the upper and the lower of the well.

2. The completion plug according to claim 1, wherein the first attaching means (204) is a protruding part for attaching the safety means (200) in the upper part of the running tool (100) to prevent the safety means (200) from moving up and down in the running tool (100).

3. The completion plug according to claim 1, wherein the safety means (200) is a supporting part for preventing the equalizing means (400) from moving up and comprising the equalizing shear sub (202) having a position (210) to support the first attaching means (204).

4. The completion plug according to claim 3, wherein the safety means (200) further comprises a first moving means (206) located between an upper groove (108) of the running tool (100) and the safety means (200) in order to limit the movement of the safety means (200) when releasing the first attaching means (204).

5. The completion plug according to claim 1, wherein the second attaching means (304) is a protruding part for attaching the shearing means (300) at the center position of the running tool (100) in order to prevent the shearing means (300) from moving up and down in the running tool (100).

6. The completion plug according to claim 1, wherein the shearing means (300) is a housing for suspending the fishing neck (410) to attach the fishing neck (410) in the running tool (100) and comprises the shear retainer (302) in a position (308) for supporting the second attaching means (304).

7. The completion plug according to claim 6, wherein the shearing means (300) further comprises a second moving means (306) located between a lower groove (110) of the running tool (100) and the shearing means (300) in order to limit the movement of the shearing means (300) when releasing the second attaching means (304).

8. The completion plug according to claim 1, wherein the third attaching means (422) is an attaching part for attaching the equalizing means (400) at the lower part of the running tool (100) in order to prevent the equalizing means (400) to be detached from the running tool (100).

9. The completion plug according to claim 1, wherein the equalizing means (400) comprises the fishing neck (410), having a neck (412) fished to the shearing means (300), in order to suspend the equalizing means (400) and the equalizing body (420), which is attached to the lower part of the fishing neck (410) by the third attaching means (422).

10. The completion plug according to claim 1, wherein the equalizing means (400) equalizes pressure between the upper and the lower of the well through the equalizing body (420) having the equalizing port (430) inside, the equalizing port (430) connected to the hollow channel (432) laid inside the equalizing body (420).

11. The completion plug according to claim 1, wherein the equalizing means (400) further comprises a seal ring (440) at the upper and the lower position of the equalizing port (430) in order to protect pressure leak when covering with the equalizing prong housing (450).

12. The completion plug according to claim 9, wherein the equalizing means (400) further comprises a third moving means (424) located between an equalizing groove (452) of the equalizing prong housing (450) and the position (428) of the equalizing body (420), a third moving means (424) located at a blocking position (453) when there is no releasing of the first attaching means (204) and the second attaching means (304).

13. The completion plug according to claim 9, wherein the equalizing means (400) further comprises a third moving mean (424) located between an equalizing groove (452) of the equalizing prong housing (450) and the position (428) of the equalizing body (420), the third moving means (424) located at a releasing position (454) when releasing of the first attaching means (204) and the second attaching means (304).

14. The completion plug with according to claim 1, wherein the equalizing means (400) further comprises an adjusting nut (460) covering on the equalizing body (420) under the equalizing prong housing for limiting the movement of the equalizing prong housing (450).

15. The completion plug according to claim 1, wherein the equalizing means (400) further comprises a bottom sub (500) at the lowest part of the equalizing means (400) for connecting with the underneath devices.

16. The completion plug according to claim 1, wherein said device is configured to equalize the pressure of the well, comprising: the first attaching means (204) located between the upper part of the running tool (100) and the safety means (200) that is released to make the safety means (200) be moveable for reducing an impact force between the equalizing means (400) and the inner of the running tool (100); the second attaching means (304) located between the middle part of the running tool (100) and the shearing means (300) that is released to make the running tool (100) be movable; the third attaching means (422) located between the lower part of the fishing neck (410) and the upper part of the equalizing body (420), the fishing neck (410) located adjacent to the safety mean (200) and having neck (412) fished to the shearing means (300); wherein the running tool (100) is moved down in order to press the equalizing prong housing (450) connected to the lower end of the running tool (100) for opening the equalizing port (430) in order to equalize the different pressure of the well between the upper and the lower parts of said device.

17. The completion plug according to claim 16, wherein the completion plug is configured to equalize the well pressure by the jarring down the running tool (100) in order to release the first attaching means (204) and the second attaching means (304).

18. The completion plug according to claim 16, wherein the safety means (200) further comprises a first moving means (206) located between an upper groove (108) of the running tool (100) and the safety means (200) for limiting the movement of the safety means (200) in the running tool (100).

19. The completion plug according to claim 16, wherein the shearing means (300) further comprises a second moving means (306) located between a lower groove (110) of the running tool (100) and the shearing means (300) for limiting the movement of the shearing mean (300) in the running tool (100).

20. The completion plug according to claim 16, wherein the equalizing means (400) having the equalizing port (430) inside, the equalizing port (430) connected to the hollow channel (432) laid inside the equalizing body (420).

21. The completion plug according to claim 16, wherein the equalizing means (400) further comprises a third moving mean (424) located between an equalizing groove (452) of the equalizing prong housing (450) and the position (428) of the equalizing body (420) for releasing the equalizing prong housing (454).

22. The completion plug according to claim 16, wherein the equalizing means (400) further comprises an adjusting nut (460) covering the equalizing body (420) under the equalizing prong housing for limiting the movement of the equalizing prong housing (450).

23. The completion plug according to claim 16, wherein the equalizing means (400) further comprises a bottom sub (500) at the lowest part of the equalizing mean (400) for connecting with the underneath devices

24. The completion plug according to claim 1, wherein the first attaching means (204), the second attaching means (304), and the third attaching means (422) are selected from bolt, screw, or hook.

25. A completion plug for well completion, comprising: a first attaching means (204) located between the upper part of a running tool (100) and a safety means (200), the safety means (200) comprising a equalizing shear sub (202), and the running tool (100) has internal space that allows internal members to move up and down; a second attaching means (304) located between the middle part of the running tool (100) and a shearing means (300), the shearing means (300) comprising a shear retainer (302) for retaining shearing force that may occur between a fishing neck (410) and the inner of the running tool (100); a third attaching means (422) located between the lower part of the running tool (100) and an equalizing means (400), an equalizing means (400) comprising a equalizing body (420) having an equalizing port (430) inside it and the fishing neck (410) for fishing the shearing means (300) to the equalizing means (400); wherein the completion plug is configured to close the well pressure by releasing the first attaching means (204) so that the equalizing shear sub (202) will reduce impact force between the equalizing means (400) and the inner of the running tool (100); and wherein the third attaching means (422) releases the equalizing means (400) from the running tool (100) in order to make a bottom sub (500) close the well when the well is not in use for production.

26. The completion plug according to claim 25, wherein the first attaching means (204) is a protruding part for attaching the safety means (200) in the upper part of the running tool (100) to prevent the safety means (200) from moving up and down in the running tool (100).

27. The completion plug according to claim 25, wherein the safety means (200) is a supporting part for preventing the equalizing means (400) from moving up and comprising the equalizing shear sub (202) having a position (210) to support the first attaching means (204).

28. The completion plug according to claim 27, wherein the safety means (200) further comprises a first moving means (206) located between an upper groove (108) of the running tool (100) and the safety means (200) in order to limit the movement of the safety means (200) when releasing the first attaching means (204).

29. The completion plug according to claim 25, wherein the second attaching means (304) is a protruding part for attaching the shearing means (300) at the center position of the running tool (100) in order to prevent the shearing means (300) from moving up and down in the running tool (100).

30. The completion plug according to claim 25, wherein the shearing means (300) is a housing for suspending the fishing neck (410) to attach the fishing neck (410) in the running tool (100) and comprises the shear retainer (302) in a position (308) for supporting the second attaching means (304).

31. The completion plug according to claim 30, wherein the shearing means (300) further comprises a second moving means (306) located between a lower groove (110) of the running tool (100) and the shearing means (300) in order to limit the movement of the shearing means (300) when releasing the second attaching means (304).

32. The completion plug according to claim 25, wherein the third attaching means (422) is an attaching part for attaching the equalizing means (400) at the lower part of the running tool (100) in order to prevent the equalizing means (400) to be detached from the running tool (100).

33. The completion plug according to claim 25, wherein the equalizing means (400) comprises the fishing neck (410), having a neck (412) fished to the shearing means (300), in order to suspend the equalizing means (400) and the equalizing body (420), which is attached to the lower part of the fishing neck (410) by the third attaching means (422).

34. The completion plug according to claim 25, wherein the equalizing means (400) equalizes pressure between the upper and the lower of the well through the equalizing body (420) having the equalizing port (430) inside, the equalizing port (430) connected to the hollow channel (432) laid inside the equalizing body (420).

35. The completion plug according to claim 25, wherein the equalizing means (400) further comprises a seal ring (440) at the upper and the lower position of the equalizing port (430) in order to protect pressure leak when covering with an equalizing prong housing (450).

36. The completion plug according to claim 33, wherein the equalizing means (400) further comprises a third moving means (424) located between an equalizing groove (452) of an equalizing prong housing (450) and the position (428) of the equalizing body (420), the third moving means (424) located at a blocking position (453) when there is no releasing of the first attaching means (204) and the second attaching means (304).

37. The completion plug according to claim 33, wherein the equalizing means (400) further comprises a third moving mean (424) located between an equalizing groove (452) of an equalizing prong housing (450) and the position (428) of the equalizing body (420), the third moving means (424) located at a releasing position (454) when releasing of the first attaching means (204) and the second attaching means (304).

38. The completion plug according to claim 25, wherein the equalizing means (400) further comprises an adjusting nut (460) covering on the equalizing body (420) under an equalizing prong housing for limiting the movement of the equalizing prong housing (450).

39. The completion plug according to claim 25, wherein the equalizing means (400) further comprises a bottom sub (500) at the lowest part of the equalizing means (400) for connecting with the underneath devices.

40. The completion plug according to claim 25, wherein said device is configured to equalize the pressure of the well, comprising: the first attaching means (204) located between the upper part of the running tool (100) and the safety means (200) that is released to make the safety means (200) be moveable for reducing an impact force between the equalizing means (400) and the inner of the running tool (100); the second attaching means (304) located between the middle part of the running tool (100) and the shearing means (300) that is released to make the running tool (100) be movable; and the third attaching means (422) located between the lower part of the running tool (100) and the equalizing means (400) wherein the separating the equalizing means (400) is separated from the running tool (100) by releasing the third attaching means (422) such that the bottom sub (500) close the well when said well is not in use for production.

41. The completion plug according to claim 40, wherein the completion plug is configured to close the well by the jarring down of the running tool (100) to release the first attaching means (204) and the third attaching means (422).

42. The completion plug according to claim 40, wherein the safety means (200) further comprises a first moving means (206) located between an upper groove (108) of the running tool (100) and the safety means (200) for limiting the movement of the safety means (200) in the running tool (100).

43. The completion plug according to claim 40, wherein the shearing means (300) further comprises a second moving means (306) located between a lower groove (110) of the running tool (100) and the shearing means (300) for limiting the movement of the shearing means (300) in the running tool (100).

44. The completion plug according to claim 40, wherein the equalizing means (400) has the equalizing port (430) inside, the equalizing port (430) connected to the hollow channel (432) laid inside the equalizing body (420).

45. The completion plug according to claim 40, wherein the equalizing means (400) further comprises a third moving means (424) located between an equalizing groove (452) of an equalizing prong housing (450) and the position (428) of the equalizing body (420) for blocking the equalizing prong housing (453).

46. The completion plug according to claim 45, wherein the equalizing means (400) further comprises an adjusting nut (460) covering the equalizing body (420) under the equalizing prong housing for limiting the movement of the equalizing prong housing (450).

47. The completion plug according to claim 40, wherein the equalizing means (400) further comprises the bottom sub (500) at the lowest part of the equalizing means (400) for connecting with the underneath devices.

48. The completion plug according to claim 1, wherein the first attaching means (204), the second attaching means (304), and the third attaching means (422) are selected from bolt, screw, or hook.

49. A method for equalizing the pressure of the well according to claim 1, comprising steps of: installing the completion plug by connecting a bottom sub (500) to the devices inside the production tubing; adjusting the position of a third moving means (424) to release the equalizing prong housing (450); releasing the first attaching means (204) and the second attaching means (304); and releasing the running tool (100) in order to press the equalizing prong housing (450) down to open the equalizing port (430).

50. The method according to claim 49, wherein the releasing of the first attaching means (204) and the second attaching means (304) are released by jarring down the running tool (100).

51. A method for closing the well according to claim 25, comprising steps of: installing the completion plug by connecting the bottom sub (500) to the devices inside the production tubing; and releasing the first attaching means (204) and the third attaching means (422).

52. The method according to claim 51, the releasing of the first attaching means (204) and the second attaching means (304) are released by jarring down the running tool (100).

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0025] FIG. 1 shows an alignment of internal members of the completion plug according to the exemplary embodiment of this invention.

[0026] FIG. 2 shows cross-section of the internal members of the completion plug according to the exemplary embodiment of this invention.

[0027] FIG. 3 shows perspective view of the completion plug with according to the exemplary embodiment of this invention that shows the internal mechanicals.

DESCRIPTION OF THE INVENTION

[0028] The present invention relates to a completion plug for well completion.

[0029] In one embodiment, the completion plug for equalizing pressure in well comprising: A first attaching means (204) located between the upper part of a running tool (100) and a safety means (200), the safety means (200) comprising a equalizing shear sub (202), and the running tool (100) has internal space that allows internal members to move up and down;

[0030] A second attaching means (304) located between the middle part of the running tool (100) and a shearing means (300), the shearing means (300) comprising a shear retainer (302) for retaining shearing force that may occur between a fishing neck (410) and the inner of the running tool (100);

[0031] A third attaching means (422) located between the lower part of the running tool (100) and an equalizing means (400), an equalizing means (400) comprising a equalizing body (420) having an equalizing port (430) inside it and the fishing neck (410) for fishing the shearing means (300) to the equalizing means (400);

[0032] Wherein the completion plug is configured to equalize the well pressure by releasing the first attaching means (204) so that the equalizing shear sub (202) will reduce impact force between the equalizing means (400) and the inner of the running tool (100); and

[0033] Wherein the second attaching means (304) releases the running tool (100) to press an equalizing prong housing (450) connected to the lower end of the running tool (100) down in order to open the equalizing port (430) for equalizing pressure between the upper and the lower of the well.

[0034] In another embodiment, the present invention relates to a completion plug for well completion, comprising:

[0035] A first attaching means (204) located between the upper part of a running tool (100) and a safety means (200), the safety means (200) comprising a equalizing shear sub (202), and the running tool (100) has internal space that allows internal members to move up and down;

[0036] A second attaching means (304) located between the middle part of the running tool (100) and a shearing means (300), the shearing means (300) comprising a shear retainer (302) for retaining shearing force that may occur between a fishing neck (410) and the inner of the running tool (100);

[0037] A third attaching means (422) located between the lower part of the running tool (100) and an equalizing means (400), an equalizing means (400) comprising a equalizing body (420) having an equalizing port (430) inside it and the fishing neck (410) for fishing the shearing means (300) to the equalizing means (400);

[0038] Wherein the completion plug is configured to equalize the well pressure by releasing the first attaching means (204) so that the equalizing shear sub (202) will reduce impact force between the equalizing means (400) and the inner of the running tool (100); and

[0039] Wherein the third attaching means (422) releases the equalizing means (400) from the running tool (100) in order to make the bottom sub (500) close the well when the well is not in use for production.

[0040] Any aspects described herein are aimed to include the application to the other aspects of this invention, unless stated otherwise.

[0041] Technical terms or scientific terms used herein have definitions as understood by persons skilled in the art unless stated otherwise.

[0042] The use of singular noun or pronoun, or plural nouns or pronouns with “comprising” in the claims or in the specification refers to “one” and including “one or more”, “at least one”, and “one or more than one”.

[0043] Throughout this application, unless being stated otherwise:

[0044] Hereafter, detailed description of the invention will be described without any purpose to limit any scope of the invention.

[0045] FIG. 1 shows an alignment of internal members of a completion plug for well completion according to the present invention, wherein the running tool (100) is a housing with internal space that allows a safety means (200), a shearing means (300), and an equalizing means (400) to be inside the running tool (100). The safety means (200), the shearing means (300), and the equalizing means (400) can be movable inside the running tool (100). The safety means (200) comprises an equalizing shear sub (202) inside the top of the running tool (100). A shearing means (300), located under the safety means (200), comprises a shear retainer (302) which is a housing covering an equalizing means (400). Said equalizing means (400) comprises a fishing neck (410) and an equalizing body (420). The fishing neck (410) is located under the safety means (200), and is a cylinder shape having larger diameter of the upper end than the lower part for fishing the shearing means (300). The equalizing body (420) is a cylinder shape having equalizing port (430) inside it (not shown in FIG. 1). The upper end of the equalizing body (420) is attached to the lower end of the fishing neck (410), whereas the lower end of the equalizing body (420) is attached to the bottom sub (500).

[0046] FIG. 2 shows a cross-section of the completion plug according to this invention. The upper part of the completion plug according to this invention has a first attaching means (204) which is a protruding part a protruding part configured to be attached between the running tool (100) and the equalizing shear sub (202). The first attaching means (204) attaches the port (210) of the equalizing shear sub (202) inside the running tool (100) in order to prevent the equalizing means (400) from moving up. Moreover, the upper part of the completion plug according to this invention further comprises a first moving means (206), which is a protruding part configured to be attached between upper groove (108) of the running tool (100) and port (212) of the equalizing shear sub (202). Preferably, the port (212) can further comprises a set screw (208) for attaching the first moving means (206) to the port (212). When releasing the first attaching means (204), the first moving means (206) will limit the movement of the safety means (200) to move up and down within space of the upper groove (108).

[0047] Moreover, as shown in FIG. 2, the middle part of the completion plug according to this invention has a second attaching means (304) which is a protruding part configured to be attached between the running tool (100) and a shear retainer (302) via port (308) of the shear retainer (302). The shear retainer (302) covers on the fishing neck (410) at the neck 412. Also, the second attaching means (304) attaches the shearing means (300) next to the equalizing means (400) to be immobilized.

[0048] Moreover, the lower part of the completion plug according to this invention as shown in FIG. 2 has a third attaching means (422) which is an attaching part configured to be attached between the lower part of the running tool (100) and port 414 of the fishing neck (410) and port (426) of the equalizing body (420). The third attaching means (422) attaches the equalizing body (420) in order not to be separated from the running tool (100) and the fishing neck (410). Moreover, the lower part of the completion plug according to this invention also has a third moving means (424) which is a protruding part configured to be attached between an equalizing prong housing (450) and position (428) of the equalizing body (420). The third moving means (424) blocks and releases the equalizing prong housing (450). The equalizing prong housing (450) is an open end pipe located under the running tool (100) and covering the equalizing body (420). The equalizing body (420) has an equalizing port (430) which is the open port connected to the hollow channel (432) laid inside the equalizing body at the middle part. Preferably, the upper and lower part of the equalizing port (430) has a seal ring 440 for preventing the pressure leak, while the equalizing prong housing (450) is configured to close the equalizing port (430). On the other hand, if the equalizing prong housing (450) has been released, there will be the equalizing of different pressure between the upper and the lower part of the device according to this invention via the equalizing port (430) and the hollow channel (432). Moreover, at the bottom part of the equalizing prong housing (450), there is an adjusting nut (460) covering on the equalizing body (420) for limiting the moving distance of the equalizing prong housing (450). Also, there is the bottom sub (500) attached to the lowest end of the equalizing means (400) for connecting to the underneath devices.

[0049] FIG. 3 shows a perspective view, which exhibits the internal mechanism of the completion plug according to this invention. The first attaching means (204) at the upper part of the completion plug according to this invention is a protruding part configured to be attached between the running tool (100) and the equalizing shear sub (202) in order to attach members together via the upper port (102) of the running tool (100) and port (210) (shown in FIG. 2) of the equalizing shear sub (202).

[0050] The second moving means (306), at the center of the completion plug according to this invention, is a protruding part configured to be attached between the lower groove (110) of the running tool (100) and the shear retainer (302) in order to limit the movement of the shearing means (300) attached to the equalizing means (400) to move up and down within the lower groove (110) when releasing the second attaching means (304), configured to be attached between the center port 104 of the running tool (100) and the shear retainer (302).

[0051] The third moving means (424), at the lower part of the completion plug according to this invention, is a protruding part configured to be attached between a equalizing groove (452) of the equalizing prong housing (450) and the position (428) (shown in FIG. 2) of the equalizing body (420). The third moving means (424) blocks the equalizing prong housing (450) when it is in the blocking position (453) while releasing the equalizing prong housing (450) when it is in the releasing position (454) in order to equalize the different pressure between the upper and the lower parts of the completion plug according to this invention via the equalizing port (430).

[0052] According to the specification, the completion plug in this invention is configured to equalize the pressure of the petroleum well by “jarring down” technique via the wireline or cable control connected to the completion plug at the upper end of the running tool (100) for releasing the first attaching means (204). This makes the equalizing shear sub (202) to be able to move up and down within the upper groove (108) by the first moving means (206) in order to reduce the impact force between the equalizing means (400) and the internal part of the running tool (100). The jarring down also releases the second attaching means (304) that makes the running tool (100) to be able to move down to press the equalizing prong housing (450) when the third moving means (424) is in the releasing position (454) to open the equalizing port (430) in order to equalize the different pressure between the upper and the lower parts of the completion plug according to the present invention.

[0053] In one embodiment of the present invention, the completion plug according to this invention is configured to equalize the pressure of the

[0054] well, comprising:

[0055] the first attaching means (204) located between the upper part of the running tool (100) and the safety means (200) is released in order to make the safety means (200) to move to be able to reduce the impact force between the equalizing means (400) and the internal part of the running tool (100);

[0056] the second attaching means (304) located between the middle part of the running tool (100) and the shearing means (300) is released in order to make the running tool (100) to be movable;

[0057] the third attaching means (422) located between the lower part of the fishing neck (410) and the upper part of the equalizing body (420) of the equalizing mean (400), wherein the fishing neck (410) is located next to the safety means (200) and having neck (412) fished to the shearing means (300), wherein the running tool (100) is moved down in order to press the equalizing prong housing (450) at the third moving means (424) to the releasing position 454 in order to open the equalizing port (430) for equalizing the different pressure of the well between the upper and the lower parts of the completion plug.

[0058] In one embodiment of the present invention, a method for configuring the completion plug according to this invention to equalize the pressure of the well comprises steps of:

[0059] 1. Dropping the completion plug according to this invention, of which is connected to the wireline or cable at the upper end position of the running tool (100), into the well in order to install said device in the area desired to separate the tubing system, wherein the bottom sub (500) of the completion plug is connected to the other devices used for well completion inside the well.

[0060] 2. Adjusting the position of the third moving means (424) in the equalizing (452) to be in the releasing position (454) by controlling via the wireline or cable.

[0061] 3. Releasing the first attaching means (204) and the second attaching means (304) by jarring down technique by controlling via the wireline or cable.

[0062] 4. Jarring down, in order to move the running tool (100) down, to press the equalizing prong housing (450) to open the equalizing port (430) for equalizing the different pressure between the upper and the lower parts of said device.

[0063] According to the specification, the completion plug according to this invention is configured to close the well by jarring down technique via the control of wireline or cable connected to the upper end position of the running tool (100) to release the first attaching means (204). This enable the equalizing shear sub (202) to move up and down within the upper groove (108) by the first moving means (206) in order to reduce the impact force between the equalizing means (400) and the running tool (100). The jarring down also releases the third attaching means (422) making the equalizing means (400) and the bottom sub (500) under the equalizing body (410) to be released and separated from the running tool (100) to close the well when not in use or before the well is opened for production.

[0064] In one embodiment of the present invention, the completion plug according to this invention is configured to close the well, comprising:

[0065] the first attaching means (204) located between the upper part of the running tool (100) and the safety means (200) is released in order to make the safety means (200) movable to reduce the impact force between the equalizing means (400) and internal of the running tool (100);

[0066] the second attaching means (304) located between the middle part of the running tool (100) and the shearing means (300); and

[0067] the third attaching means (422) located between the lower part of the running tool (100) and the equalizing means (400), releasing and separating the bottom sub (500) at the lower part of the equalizing body (410) from the running tool (100), in order to close the well when said well is not in use or before the well is opened for production.

[0068] In one embodiment of the present invention, a method for configuring the completion plug according to this invention to close the well comprises steps of:

[0069] 1. Dropping the completion plug according to this invention, of which is connected to the wireline or cable at the upper end position of the running tool (100), into the well in order to install said device in the area desired to separate the tubing system, wherein the bottom sub (500) of the completion plug is connected to the other devices used for well completion inside the well.

[0070] 2. Releasing the first attaching means (204) and the third attaching means (422) by jarring down technique by controlling via the wireline or cable.

BEST MODE OF THE INVENTION

[0071] Best mode or preferred embodiment of the invention is as provided in the description of the invention.