CN216847263U

CN216847263U - Float collar and float shoe pressure testing device

Info

Publication number: CN216847263U
Application number: CN202122407609.9U
Authority: CN
Inventors: 白园园; 赵聪; 刘建; 董国峰; 徐山廷
Original assignee: Shelfoil Petroleum Equipment & Services Co ltd; China Petroleum and Chemical Corp; Sinopec Research Institute of Petroleum Engineering
Current assignee: Shelfoil Petroleum Equipment & Services Co ltd; China Petroleum and Chemical Corp; Sinopec Research Institute of Petroleum Engineering
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-06-28
Anticipated expiration: 2031-09-30

Abstract

The utility model relates to a float collar float shoe pressure testing device, include: the floating shoe cover comprises a body with an opening, wherein an inner cavity for accommodating a floating hoop and a floating shoe and a sealing cover are arranged in the body, and a pressing hole penetrating through the sealing cover is arranged on the sealing cover. The sealing cover can extend into the floating hoop and floating shoe, so that a closed pressure test chamber is formed in the floating hoop and floating shoe. The utility model discloses a float collar float shoe pressure testing device's simple structure can reduce pressure testing in-process float collar float shoe and pressure testing device's bearing area effectively, prevents float collar float shoe and pressure testing device's damage.

Description

Float collar and float shoe pressure testing device

Technical Field

The utility model relates to a float collar float shoe pressure testing device.

Background

The float collar and float shoe are one of the common accessory tools in oil well production. In recent years, with the increase of large-size wells, accessory tools such as floating hoops and floating shoes applied to the large-size wells are increased gradually. According to the industry standard of the float collar and the float shoe, the reverse pressure bearing capacity test is required. In the pressure testing process of the existing pressure testing device, the generated pressure testing pressure can act on the valve seat of the float collar and the end socket at the other end. For floating collar floating shoes with different specifications, the pressure testing tool and the floating collar floating shoes are required to bear the pressure generated by the maximum sectional area. And along with the bulky of float collar float shoe, its bearing area also increases thereupon to lead to the damage of float collar float shoe or pressure testing frock easily. Therefore, the existing pressure testing device is difficult to be applied to the pressure testing operation of the large-size float collar and float shoe.

SUMMERY OF THE UTILITY MODEL

To the technical problem as above, the utility model aims at providing a float collar float shoe pressure testing device. The utility model discloses a float collar float shoe pressure testing device's simple structure can reduce pressure testing in-process float collar float shoe and pressure testing device's bearing area effectively, prevents float collar float shoe and pressure testing device's damage.

According to the utility model discloses, a with float collar float shoe pressure testing device is provided, including having the open-ended body, this internal inner chamber that holds the float collar float shoe that has to and the closing cap, be provided with on the closing cap and run through the hole of suppressing of closing cap.

The sealing cover can extend into the floating hoop and floating shoe, so that a closed pressure test chamber is formed in the floating hoop and floating shoe.

In a preferred embodiment, a movable rod capable of pushing the cover to move is further connected to one side of the cover, which is far away from the float collar and the float shoe.

In a preferred embodiment, a through hole is provided in the movable rod, and an air inlet line for connecting the pressurizing hole and the air source is provided in the through hole.

In a preferred embodiment, the device further comprises a gland capable of closing the opening, and the first end of the movable rod, which is far away from the gland, penetrates through the opening and extends out of the inner cavity.

In a preferred embodiment, a first tooling hole is further formed in an outer wall of the movable rod, which is close to the first end.

In a preferred embodiment, a viewing hole communicated with the inner cavity is further arranged on the outer wall of the side, away from the gland, of the body.

In a preferred embodiment, a fixing piece capable of fixing the float collar and the float shoe is further arranged in the inner cavity.

In a preferred embodiment, the fixing member is provided as a plurality of detachable fixing rings which are sleeved together.

In a preferred embodiment, at least one sealing element is arranged between the cover and the float collar and the float shoe.

In a preferred embodiment, a second tooling hole is provided in the outer wall of the body.

Drawings

The present invention will be described with reference to the accompanying drawings.

Fig. 1 shows a half-sectional view of a float collar and float shoe pressure test device according to the present invention.

In the present application, all the figures are schematic and are only intended to illustrate the principles of the present invention and are not drawn to scale.

Detailed Description

Fig. 1 shows a float collar and float shoe pressure testing device 100 according to an embodiment of the present invention. As shown in fig. 1, the float collar and float shoe pressure testing device 100 includes a body 10, and the body 10 is a hollow casing, which may be square or cylindrical, for example. An inner cavity 15 is defined in the body 10 for placement of a float collar float shoe 20. The body 10 has an opening 12, so that an operator can replace different float collar float shoes 20 through the opening 12 to perform pressure testing on different float collar float shoes 20.

As shown in fig. 1, the float collar and float shoe pressure testing device 100 further includes a movable rod 30 disposed in the inner cavity 15, and a first end 32 of the movable rod 30 extends out of the inner cavity 15. Meanwhile, a cap 40 is coupled at the second end 34 of the movable bar 30.

The utility model discloses in, the closing cap 40 structure is the shape with the cavity 25 looks adaptation in the float collar float shoe, thereby makes closing cap 40 can stretch into under the drive of movable rod 30 the inside of cavity 25, and with cavity 25 forms interference fit. This enables the cover 40 to seal the cavity 25, forming a sealed pressure test chamber 251 in the cavity 25.

Meanwhile, the cover 40 is further provided with a pressing hole 42, and the pressing hole 42 penetrates through the cover 40. Thus, when the cover 40 seals the cavity 25, the pressure hole 42 can communicate with the pressure test chamber 251. An air inlet line (not shown) for connection to an air supply (not shown) is provided in the pressure port 42. Therefore, when the float collar float shoe needs to be subjected to pressure testing, an operator can inject high-pressure gas into the pressure testing chamber 251 through the pressurizing hole 42 to test the pressure of the float collar float shoe.

Specifically, the movable rod 30 is configured as a tube, a through hole 31 is provided in the movable rod 30, and the air inlet pipeline is arranged in the through hole 31 and extends to an air source (not shown) outside the pressure test device 100. This arrangement helps simplify the structure of the pressure testing device 100.

Compare in current pressure testing device, the utility model discloses a float collar float shoe pressure testing device 100 can inject pressure testing device 100 and float collar float shoe's bearing area when carrying out the pressure testing and be less than the within range of cavity 25 sectional areas to the bearing area of pressure testing device 100 and float collar float shoe has been reduced effectively. Through the arrangement, on one hand, the volume of the pressure test device 100 can be reduced, and the cost is reduced; on the other hand also can reduce the destruction of pressure testing pressure to pressure testing device 100 and float collar float shoe (especially to the large size float collar float shoe), makes the utility model discloses a float collar float shoe pressure testing device 100 is particularly useful for the pressure testing operation to the large size float collar float shoe.

In a preferred embodiment, at least one seal 45 is further provided between the cover 40 and the float collar float shoe 20. The seal 45 may be a sealing ring, for example. The sealing member 45 can further improve the sealing performance of the pressure test chamber 251, and prevent high-pressure gas from leaking from a small gap between the sealing cover 40 and the floating hoop and floating shoe 20, which affects the accuracy of pressure test.

As shown in fig. 1, the float collar and float shoe pressure testing device 100 of the present invention further includes a gland 16 disposed at the opening 12. The gland 16 is capable of closing the opening 12 and thus the inner cavity 15. Therefore, when the pressure bearing capacity of the float collar float shoe 20 is low, which causes pressure test failure, the gland 16 plays a role of protection, and prevents the high-pressure float collar float shoe 20 fragments from sputtering out of the opening 12, thereby improving the safety of the float collar float shoe device 100.

In the present invention, the movable rod 30 is screwed on the gland 16 and penetrates through the gland 16. Thus, the worker can control the movable rod 30 to move axially along the movable rod 30 by rotating the movable rod 30, and then control the sealing cover 40 to extend into or withdraw from the cavity 25, so that the sealing cover 40 is controlled to seal the cavity 25.

Meanwhile, a first tooling hole 35 is further formed in the outer wall of the movable rod 30 close to the first end 32. The first tooling hole 35 is used for connecting a mechanical device (not shown) so as to control the rotation of the movable rod 30 through the mechanical device, thereby accurately controlling the speed and the moving distance of the movable rod 30 moving along the self axial direction and reducing the labor intensity of operators.

Similarly, a second tooling hole 18 is formed in the outer wall of the body 10. The second tooling holes 18 are also used for attachment of mechanical devices, thereby controlling the movement of the body 10 as required on site, for example during maintenance.

In a preferred embodiment, as shown in fig. 1, a viewing hole 19 communicating with the inner cavity is further provided on the outer wall of the body 10 on the side away from the gland 16. In the process of carrying out pressure testing work, the staff can be right through observing hole 19 inner chamber 15 is observed to real-time supervision float collar float shoe 20's pressure testing result.

In addition, as shown in fig. 1, a fixing member 50 capable of fixing the float collar and float shoe 20 is further provided in the inner cavity 15. The fixing member 50 can limit the floating collar and floating shoe 20 at the geometric center of the bottom of the inner cavity 15, so that the cover 40 can accurately extend into the cavity 25 to seal the cavity 25. On the other hand, the fixing member 50 can fix the floating collar float shoe 20, so as to prevent the floating collar float shoe 20 from shaking under high pressure during pressure testing to affect the sealing effect of the sealing cover 40.

In the present invention, the fixing member 50 is configured as a plurality of separable fixing rings 55 that are sleeved together. Thus, the worker can control the size of the fixing member 50 by adjusting the number of the fixing rings 55, so that the fixing member 50 can be used for float collar float shoes 20 of different sizes. And simultaneously, the sealing plate 40 with different sizes is replaced by the float collar float shoe 20 with different sizes. Through the arrangement, the utility model discloses a float collar float shoe pressure testing device 100 can be used for the pressure testing operation of not unidimensional float collar float shoe 20. This increases the range of applicability of the pressure testing device 100.

The operation of the float collar and float shoe pressure testing device 100 according to the present invention will be briefly described below.

This novel float collar float shoe pressure testing device 100 is used for carrying out the pressure testing operation to the float collar float shoe 20 of unidimensional not. When pressure testing operation is carried out, firstly, the sizes of the fixing piece 50 and the sealing plate 40 are adjusted according to the size of the floating hoop floating shoe 20 to be tested, and the floating hoop floating shoe 20 is fixed on the fixing piece 50.

After the pressure testing device 100 is assembled, the sealing plate 40 is controlled to move by rotating the movable rod 30 until the sealing plate 40 extends into the cavity 25 of the float collar and float shoe 20, so as to seal the cavity 25.

And finally, introducing high-pressure gas into the cavity 25 through the pressurizing hole 42 until the pressure of the cavity 25 reaches a preset threshold value, and monitoring whether pressure leakage exists in the cavity 25.

Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and does not constitute any limitation to the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing examples, or that equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a float collar float shoe pressure testing device which characterized in that includes:

a body (10) with an opening (12), an inner cavity (15) for accommodating the float collar float shoe (20) and a sealing cover (40), wherein a pressing hole (42) penetrating through the sealing cover is arranged on the sealing cover,

wherein, the closing cap can stretch into the inside of float collar float shoe to form airtight pressure testing chamber (251) in the inside of float collar float shoe.

2. The float collar and float shoe pressure test device according to claim 1, wherein a movable rod (30) capable of pushing the sealing cover to move is further connected to one side of the sealing cover away from the float collar and float shoe.

3. The float collar and float shoe pressure test device according to claim 2, characterized in that a through hole (31) is provided in the movable rod, and an air inlet pipeline for connecting the pressurizing hole with an air source is provided in the through hole.

4. The float collar and float shoe pressure testing device of claim 3, further comprising a gland (16) capable of closing the opening, wherein the first end (32) of the movable rod distal from the gland passes through the opening and extends outside the internal cavity.

5. The float collar and float shoe pressure testing device according to claim 4, characterized in that a first tooling hole (35) is further provided on the outer wall of the movable rod near the first end (32).

6. The float collar and float shoe pressure testing device according to claim 5, characterized in that an observation hole (19) communicating with the inner cavity is further provided on the outer wall of the body on the side away from the gland.

7. The float collar and float shoe pressure test device according to any one of claims 1 to 6, characterized in that a fixing member (50) capable of fixing the float collar and float shoe is further provided in the inner cavity.

8. The float collar and float shoe pressure test device of claim 7, wherein the fixing member is provided as a plurality of detachable fixing rings (55) nested together.

9. The float collar float shoe pressure test device of any one of claims 1-6, characterized in that at least one seal (45) is further provided between the cover and the float collar float shoe.

10. The float collar and float shoe pressure testing device according to any one of claims 1 to 6, characterized in that a second tooling hole (18) is provided on the outer wall of the body.