CN210141113U - Ball seat assembly and tubular column using same - Google Patents
Ball seat assembly and tubular column using same Download PDFInfo
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- CN210141113U CN210141113U CN201821465619.XU CN201821465619U CN210141113U CN 210141113 U CN210141113 U CN 210141113U CN 201821465619 U CN201821465619 U CN 201821465619U CN 210141113 U CN210141113 U CN 210141113U
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Abstract
The utility model relates to a ball seat subassembly and use tubular column of this ball seat subassembly. The utility model provides a tubular column includes the ball seat subassembly, the ball seat subassembly is including being used for the mount pad of being connected with the tubular column, be equipped with the passageway that overflows that is used for supplying the fluid to pass through on the radial direction of mount pad, removable and sealing connection have with the ball seat that overflows the passageway intercommunication in overflowing the passageway, be equipped with on the ball seat and be used for overflowing the sealing opening of passageway with the sealed cooperation shutoff of ball sealer. When the production operation, the tubular column uses the utility model discloses a ball seat subassembly, the ball seat leads to unable and sealed with the sealing ball when the ball seat is sealed because of corroding after long-time operation in the pit, only needs to change the ball seat that appears corroding, and need not to change other parts, has reduced unnecessary extravagant.
Description
Technical Field
The utility model relates to a ball seat subassembly and use tubular column of this ball seat subassembly.
Background
In the process of oil and gas field development, a water injection well is used for injecting water to an oil layer so as to supplement and maintain the pressure of the oil layer and improve the yield of the oil and gas field. The oilfield water injection comprises stratified water injection and general water injection, wherein the stratified water injection refers to that a packer is put into an oil-gas well to separate oil layers with different properties, and then a water distributor is used for the stratified water injection, so that the water injection amount of the oil layer with higher permeability is controlled, the water injection amount of the oil layer with lower permeability is enhanced, and the yield of the oilfield is improved. After the packer is put into an oil and gas well, the packer needs to be pressed and set so as to realize the setting of the packer. Usually, a setting steel ball is matched with a ball seat to seal the water injection pipe column, and then the packer is pressed and set. However, in field application, after the ball seat is put into the well for a period of time, the ball seat and the setting steel ball are easily corroded due to the influence of factors such as water quality, underground backflow mineral substances and the like, the corroded setting steel ball and the ball seat are not sealed, so that a pipe column is lost, the lost pipe column cannot be normally injected and only can be sealed in a sealing mode. However, the ball seat and the steel ball are corroded only at the contact position, other positions still meet the use requirements, and the whole replacement and installation of the ball seat undoubtedly causes great waste of resources.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a ball seat component, aiming at solving the problem of waste caused by replacing the whole ball seat; an object of the utility model is also to provide an install the tubular column of above-mentioned ball seat subassembly.
In order to achieve the above object, the technical solution of the utility model is that:
the utility model provides a ball seat subassembly is including being used for the mount pad of being connected with the tubular column, be equipped with the passageway that overflows that is used for supplying fluid to pass through in the mount pad axial direction, the removable and sealing connection have with the ball seat that overflows the passageway intercommunication in overflowing the passageway, be equipped with on the ball seat and be used for overflowing the seal of passageway with the sealed cooperation shutoff of ball sealer.
Has the advantages that: when the production operation, the tubular column uses the utility model discloses a ball seat subassembly, the ball seat leads to unable and sealed with the sealing ball when the ball seat is sealed because of corroding after long-time operation in the pit, only needs to change the ball seat that appears corroding, and need not to change other parts, has reduced unnecessary extravagant.
In order to facilitate the connection of the mounting seat and the ball seat, a groove is arranged in the mounting seat, the ball seat is inserted in the groove, and a baffle ring used for limiting the ball seat in the axial direction of the mounting seat is fixedly connected in the mounting seat on one side of the ball seat with the sealing opening.
And a sealing ring is arranged between the ball seat and the mounting seat. The provision of the sealing ring helps to enhance the sealing between the mount and the ball seat.
In order to enable the sealing ring to be fixedly and firmly arranged between the mounting seat and the sealing ring, a sealing ring mounting groove is formed in the mounting seat, and the sealing ring is mounted in the sealing ring mounting groove.
For further improvement of the installation part, the installation seat is provided with an external thread used for being connected with the pipe column. The convenience of connecting the mounting seat and the pipe column is enhanced.
In a further development of the above-mentioned sealing opening, the cross-section of the sealing opening is tapered. The conical shape of the sealing opening is beneficial to enhancing the sealing performance of the sealing opening and the sealing ball.
The technical proposal of the utility model is that:
the utility model provides a tubular column includes the ball seat subassembly, the ball seat subassembly is including being used for the mount pad of being connected with the tubular column, be equipped with the passageway that overflows that is used for supplying the fluid to pass through in the mount pad axial direction, flow through removable and sealing connection have with the ball seat that overflows the passageway intercommunication in the passageway, be equipped with on the ball seat and be used for overflowing the sealing opening of passageway with the sealed cooperation shutoff of ball sealer.
Has the advantages that: when the production operation, the tubular column uses the utility model discloses a ball seat subassembly, the ball seat leads to unable and sealed with the sealing ball when the ball seat is sealed because of corroding after long-time operation in the pit, only needs to change the ball seat that appears corroding, and need not to change other parts, has reduced unnecessary extravagant.
In order to facilitate the connection of the mounting seat and the ball seat, a groove is arranged in the mounting seat, the ball seat is inserted in the groove, and a baffle ring used for limiting the ball seat in the axial direction of the mounting seat is fixedly connected in the mounting seat on one side of the ball seat with the sealing opening.
And a sealing ring is arranged between the ball seat and the mounting seat. The provision of the sealing ring helps to enhance the sealing between the mount and the ball seat.
In order to enable the sealing ring to be fixedly and firmly arranged between the mounting seat and the sealing ring, a sealing ring mounting groove is formed in the mounting seat, and the sealing ring is mounted in the sealing ring mounting groove.
For further improvement of the installation part, the installation seat is provided with an external thread used for being connected with the pipe column. The convenience of connecting the mounting seat and the pipe column is enhanced.
In a further development of the above-mentioned sealing opening, the cross-section of the sealing opening is tapered. The conical shape of the sealing opening is beneficial to enhancing the sealing performance of the sealing opening and the sealing ball.
Drawings
Fig. 1 is a schematic diagram of a ball seat assembly of embodiment 1 of a tubular string according to the present invention;
in the drawings: 1. a mounting seat; 2. a baffle ring; 3. a seal ring; 4. a ball seat; 5. and (5) sealing the steel ball.
Detailed Description
The following describes embodiments of the present invention with reference to the accompanying drawings.
The utility model discloses a concrete embodiment 1 of tubular column, as shown in figure 1, the tubular column in this embodiment is the water injection tubular column, and the water injection tubular column also can be the injection production tubular column of other usage in other embodiments. The water injection tubular column comprises a packer, a water distributor and a ball seat assembly, wherein the ball seat assembly comprises a mounting seat 1, a baffle ring 2, a sealing ring 3, a ball seat 4 and a sealing steel ball 5.
Mount pad 1 is tubular structure, the upper and lower both ends outside of tubular mount pad 1 all processes the external screw thread of being connected with oil pipe, the processing of 1 inside upper end of tubular mount pad has the step recess, lower floor's recess wall is smooth cambered surface, upper strata recess wall processing has the screw thread, wherein cartridge ball seat 4 in the recess of lower floor, ball seat 4 and the sealed cooperation of recess, in order to strengthen the leakproofness between ball seat 4 and the mount pad 1, install sealing washer 3 between ball seat 4 and the mount pad 1, sealing washer 3 in this embodiment is two, and 3 interval suits of two sealing washers are on the outer peripheral face of ball seat 4. The upper end of the ball seat 4 in the embodiment is provided with a sealing opening matched with the sealing steel ball 5, the cross section of the sealing opening is conical, the diameter of the lower part of the conical sealing opening is the same as that of the cylinder opening of the mounting seat 1, the diameter of the upper part of the conical sealing opening is larger than that of the lower part of the conical sealing opening, and the purpose of the design is to enable the sealing surface of the sealing steel ball 5 to easily fall in the sealing opening of the ball seat 4.
In order to prevent that ball seat 4 in this embodiment from deviating from mount pad 1 when receiving from up power down when operations such as backwash well, install in the mount pad 1 of ball seat 4 upside and keep off ring 2, keep off ring 2 and install in the upper recess of mount pad 1 to keep off ring 2 and 1 threaded connection of mount pad. A space for accommodating the sealing steel ball 5 is formed between the baffle ring 2 and the ball seat 4, and the sealing steel ball 5 can move freely in the space.
When the ball seat subassembly in this embodiment uses, sheathe sealing washer 3 and insert the dress in mount pad 1 with ball seat 4, then put into 4 upsides of ball seat and will keep off 2 threaded connection on mount pad 1 of ring with sealed steel ball 5, then connect the ball seat subassembly to the design position from top to bottom in the tubular column cluster according to the design requirement, when the well completion is changeed and is annotated, beat in the pit shaft and press, sealed steel ball 5 and ball seat 4's toper sealing port in close contact with, the tubular column is sealed, oil pipe presses and makes the packer sit and seal. When the ball seat assembly corrodes in the pit and can not be sealed with the sealing steel ball 5, and the pipe column leaks out, the ball seat 4 is detached by using a special tool, and a new sealing steel ball 5 and a new ball seat 4 are replaced.
The utility model discloses a concrete embodiment 2 of tubular column, ball seat and mount pad threaded connection in this embodiment, the leakproofness between mode reinforcing ball seat and the mount pad of accessible winding sealing adhesive tape on the screw on the ball seat during installation. The rest is the same as embodiment 1 and is not described again.
The utility model discloses a concrete embodiment 3 of tubular column is applicable to embodiment 2, and ball seat and mount pad threaded connection do not set up at the ball seat upside in this embodiment and keep off the ring, and other are the same with embodiment 1, no longer describe repeatedly.
The utility model discloses a concrete embodiment 4 of tubular column, the sealing of ball seat upper end in this embodiment is the plain end, and the diameter of sealed steel ball is the same with the section of thick bamboo footpath of the mount pad of ball seat upside, and other are the same with embodiment 1, no longer describe repeatedly.
The utility model discloses an embodiment of ball seat subassembly is the same with the structure of the ball seat subassembly in each embodiment of above-mentioned tubular column, no longer gives unnecessary details.
Claims (6)
1. A ball socket assembly characterized in that: the device comprises a mounting seat used for being connected with a pipe column, wherein a flow passage used for allowing fluid to pass through is arranged on the mounting seat in the axial direction, a ball seat communicated with the flow passage is detachably and hermetically connected in the flow passage, and a sealing opening used for sealing and sealing the flow passage in a matched manner with a sealing ball is arranged on the ball seat; a groove is formed in the mounting seat, the ball seat is inserted into the groove, and a baffle ring used for limiting the ball seat in the axial direction of the mounting seat is fixedly connected in the mounting seat at one side of the ball seat with the sealing opening; the mounting seat is of a cylindrical structure, a step-shaped groove is formed in the upper end of the interior of the mounting seat, the groove wall surface of the lower groove is a smooth cambered surface, threads are formed on the groove wall surface of the upper groove, a ball seat is inserted into the lower groove, and the ball seat is in sealing fit with the groove; the baffle ring is arranged in the upper-layer groove of the mounting seat and is in threaded connection with the mounting seat; a sealing ring is arranged between the ball seat and the mounting seat; a sealing ring mounting groove is formed in the mounting seat, and the sealing ring is mounted in the sealing ring mounting groove; the lower end surface of the ball seat is supported on the bottom surface of the lower groove.
2. The tee assembly of claim 1, wherein: and the mounting seat is provided with an external thread used for being connected with the pipe column.
3. The tee assembly of claim 1, wherein: the section of the sealing port is conical.
4. A tubular string comprising a ball seat assembly, characterized in that: the ball seat assembly comprises a mounting seat used for being connected with a pipe column, a flow passage used for allowing fluid to pass through is arranged on the mounting seat in the axial direction, a ball seat communicated with the flow passage is detachably and hermetically connected in the flow passage, and a sealing opening used for sealing and sealing the flow passage in a matched manner with a sealing ball is arranged on the ball seat; a groove is formed in the mounting seat, the ball seat is inserted into the groove, and a baffle ring used for limiting the ball seat in the axial direction of the mounting seat is fixedly connected in the mounting seat at one side of the ball seat with the sealing opening; the mounting seat is of a cylindrical structure, a step-shaped groove is formed in the upper end of the interior of the mounting seat, the groove wall surface of the lower groove is a smooth cambered surface, threads are formed on the groove wall surface of the upper groove, a ball seat is inserted into the lower groove, and the ball seat is in sealing fit with the groove; the baffle ring is arranged in the upper-layer groove of the mounting seat and is in threaded connection with the mounting seat; a sealing ring is arranged between the ball seat and the mounting seat; a sealing ring mounting groove is formed in the mounting seat, and the sealing ring is mounted in the sealing ring mounting groove; the lower end surface of the ball seat is supported on the bottom surface of the lower groove.
5. The pipe string of claim 4, wherein: and the mounting seat is provided with an external thread used for being connected with the pipe column.
6. The pipe string of claim 4, wherein: the section of the sealing port is conical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821465619.XU CN210141113U (en) | 2018-09-07 | 2018-09-07 | Ball seat assembly and tubular column using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821465619.XU CN210141113U (en) | 2018-09-07 | 2018-09-07 | Ball seat assembly and tubular column using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210141113U true CN210141113U (en) | 2020-03-13 |
Family
ID=69728376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821465619.XU Active CN210141113U (en) | 2018-09-07 | 2018-09-07 | Ball seat assembly and tubular column using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210141113U (en) |
-
2018
- 2018-09-07 CN CN201821465619.XU patent/CN210141113U/en active Active
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