CN212154723U - Multifunctional drift size gauge tool - Google Patents
Multifunctional drift size gauge tool Download PDFInfo
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- CN212154723U CN212154723U CN202020470007.0U CN202020470007U CN212154723U CN 212154723 U CN212154723 U CN 212154723U CN 202020470007 U CN202020470007 U CN 202020470007U CN 212154723 U CN212154723 U CN 212154723U
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Abstract
The utility model discloses a multifunctional drift size gauge tool, which comprises a sleeve gauge cylinder, a first joint, a flow controller, a flow discharger and a second joint which are connected in sequence from bottom to top, wherein the second joint is connected with a construction oil pipe; the inner cavity of the flow controller is sequentially provided with a ball blocking convex seat, a sealing ball and a ball sealing plate, the sealing ball is limited between the ball blocking convex seat and the ball sealing plate, the sealing ball can be seated on the ball blocking convex seat and can seal the inner cavity of the flow controller, and a plurality of overflowing holes are formed in the ball sealing plate; the outer wall of the flow discharger is provided with a connecting pin hole, a hollow plug pin is connected in the connecting pin hole, the central plug hole is a blind hole, the closed end of the central plug hole extends into the inner cavity of the flow discharger, the open end of the central plug hole faces the outside of the flow discharger, and the hollow plug pin can be damaged by a pin breaking rod and enables the inner cavity of the flow discharger to be communicated with the outside. The utility model discloses can guarantee when the drift size gauge outfit is transferred that the fluid no longer from the blowout of oil pipe top, still can realize the tubular column earial drainage, avoid the fluid to emerge from the oil pipe upper shed and cause and fall to the ground the pollution.
Description
Technical Field
The utility model belongs to the technical field of the oil engineering borehole operation and specifically relates to a multi-functional drift size gauge tool.
Background
In the prior art, when an oil pipe is pulled out and lowered on an underground operation site, at least 4 operators are needed to form an operation class, and oil pipe pulling out and lowering operation of a wellhead of an oil well and a water well is completed in a matching mode. The well control in the oil pipe is very important, the oil sleeve annulus and the oil pipe overflow need to be immediately well controlled according to requirements, generally a blowout prevention assembly needs to be robbed down, the oil control needs 4 workers to complete within 3 minutes, the workload is large, and the requirement is high. The drifting is a common procedure in the operation of pulling and running an oil pipe, namely, a circular drifting gauge which is smaller than the inner diameter of a casing pipe and larger than the outer diameter of the oil pipe is connected to the lower end of a pipe column and used for detecting the inner diameter of the casing pipe, verifying the depth of an artificial well bottom and the like. The drift size gauge cavity diameter is greater than oil pipe inner chamber diameter, has a large amount of working liquids including mud etc. from the oil pipe blowout during transferring, and the speed is obvious more fast more, and the salient problem in the field usage: the air spraying causes pollution to the ground, which is not compatible with the new environmental protection law; the flying current is not blocked directly, so that the body health of the well head operation staff is damaged; according with the overflow characteristic of the oil pipe, the operators at the well mouth often have paralytic psychology, misjudgment and missing real blowout, which leads to the serious consequence of out-of-control blowout.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve above-mentioned technical problem and provide a multi-functional drifting gauge to liquid causes pollution and potential safety hazard from oil pipe blowout when avoiding drifting.
In order to solve the technical problem, the utility model discloses a following technical scheme:
a multifunctional drift size gauge tool comprises a sleeve gauge cylinder, a first joint, a flow control device, a flow relief device and a second joint, wherein the inner cavities of the sleeve gauge cylinder are communicated and are sequentially and hermetically connected from bottom to top, and the second joint is connected with a construction oil pipe;
the inner cavity of the flow controller is sequentially provided with a ball blocking convex seat, a sealing ball and a ball sealing plate from bottom to top, wherein the diameter of the sealing ball is smaller than that of the inner cavity of the flow controller, the sealing ball can be limited between the ball blocking convex seat and the ball sealing plate in an up-and-down movable manner, a through hole which penetrates up and down is formed in the middle of the ball blocking convex seat, the sealing ball can be seated in the through hole of the ball blocking convex seat to seal the inner cavity of the flow controller, a plurality of overflowing holes are formed in the ball sealing plate, and the ascending sealing ball cannot simultaneously shield all the overflowing holes;
the outer wall of the flow discharger transversely penetrates through a connecting pin hole, a hollow plugging pin is connected with the inner thread of the connecting pin hole in a sealing mode, a central plugging hole is formed in the middle of the hollow plugging pin, the central plugging hole is a blind hole, the closed end of the central plugging hole extends into the inner cavity of the flow discharger, the open end faces the outside of the flow discharger, and the part, extending into the inner cavity of the flow discharger, of the hollow plugging pin is damaged by a dropped pin breaking rod and enables the inner cavity of the flow discharger to be communicated with the outside to achieve the flow discharging function.
Furthermore, a plurality of flow dividing water holes which are obliquely arranged from the top to the middle of the inner cavity of the sleeve gauge cylinder are formed in the sleeve gauge cylinder in the circumferential direction and used for discharging fluid which enters the inner cavity of the sleeve gauge cylinder but cannot enter the inner cavity of the flow control device.
Furthermore, a filtrate plate is arranged in the inner cavity of the flow controller and below the ball blocking boss, and a plurality of small-diameter through holes are formed in the filtrate plate and used for blocking large-diameter solids from going upwards continuously so as to avoid influencing the sealing property between the ball blocking boss and the sealing ball.
Further, the maximum flow area of the filtrate plate is smaller than that of an inner cavity of an oil pipe used for construction, so that the flow control function of the flow controller is supported.
Furthermore, the diameter of the circular section at the lower end of the broken pin rod is larger than the radius of the inner cavity of the flow discharger, so that the broken pin rod can impact the hollow plug pin after being thrown down.
Furthermore, the outer wall of the hollow plug pin is provided with a pin body male thread so as to ensure that the pressure-resistant grade of the tubular female thread connected with the pin hole can exceed the pressure of the tubular column during pressure test.
Furthermore, a rotation assisting boss is formed at one end of the hollow plug pin, so that the hollow plug pin is convenient to use a clamp to boost rotation when being connected with the connecting pin hole.
Furthermore, an annular pre-crack groove is formed on the outer surface of the hollow plug pin, so that a breaking pin rod can break the hollow plug pin and break the seal of the flow discharger to realize the flow discharge function.
The utility model has the advantages that: the utility model discloses well seal ball of design has reduced the inner chamber space of accuse flow ware, gets into the fluid volume and is less than oil pipe inner chamber volume, can not have the fluid when consequently the drift size gauge outfit is transferred again and spout from the oil pipe top, has eliminated the pollution hidden danger of falling to the ground. The fluid goes upward to impact the sealing ball to leave the ball blocking convex seat, so that the fluid passing is not influenced, the reverse well washing operation which must be carried out after the well is communicated can be smoothly finished, the sealing ball is automatically seated into the ball blocking convex seat to be pressed after the well is washed, the pressure test of a tubular column can be realized, and the waste of the necessary tubular column pressure testing procedures such as pumping, separate injection and transmission hole patching is avoided. The hollow plug pin is arranged in the flow relief device, and the hollow plug pin can be sheared by throwing a breaking pin rod after the pressure test of the tubular column is finished, so that the flow relief of the tubular column is realized, and the pollution caused by falling to the ground due to the overflow of fluid from the upper opening of the oil pipe is avoided. Additionally, the utility model discloses the preparation is easy, and easy operation does benefit to the popularization.
Drawings
FIG. 1 is a schematic view of a main-view semi-sectional structure of the multifunctional drift size gauge of the present invention;
fig. 2 is an enlarged schematic view of the hollow plug portion of fig. 1.
In the figure, 1 is a sleeve gauge cylinder, 2 is a first joint, 3 is a flow controller, 4 is a flow discharger, 5 is a second joint, 6 is a pin breaking rod, 1-1 is a flow dividing water hole, 3-1 is a ball blocking convex seat, 3-2 is a sealing ball, 3-3 is a ball sealing plate, 3-4 is a filtrate plate, 4-1 is a pin connecting hole, 4-2 is a hollow plug pin, 4-2-1 is a pin body male thread, 4-2-2 is a central plug hole, 4-2-3 is a rotation assisting boss, and 4-2-4 is a standby cracking groove.
Detailed Description
The invention will be described in further detail with reference to the following drawings and detailed description:
referring to fig. 1 and 2, the utility model discloses a multi-functional drift size gauge tool mainly includes sleeve gauge section of thick bamboo 1, first joint 2, current controller 3, bleeder 4, second joint 5 and disconnected round pin stick 6. Wherein the sleeve gauge cylinder 1, the first joint 2, the flow controller 3, the flow discharger 4 and the second joint 5 are sequentially in threaded sealing connection and communicated with each other.
The whole sleeve gauge cylinder 1 is of a cylindrical structure, a conical step is formed at the top of the sleeve gauge cylinder, and the sleeve gauge cylinder 1 is used for scraping the inner wall of a sleeve. The upper portion of the sleeve gauge cylinder 1 is connected with the first connector 2 through threads, the sleeve gauge cylinder 1 is provided with a plurality of shunting water holes 1-1 from top to bottom, the plurality of shunting water holes 1-1 are circumferentially and uniformly distributed, each shunting water hole 1-1 is obliquely arranged from the top to the middle of an inner cavity of the shunting water hole 1-1, and the shunting water holes 1-1 are used for discharging fluid which enters the inner cavity of the sleeve gauge cylinder 1 but cannot enter the inner cavity of the flow control device 3.
The first joint 2 is integrally of a cylindrical structure, the upper part of the first joint is in threaded connection with the flow controller 3, and the first joint 2 is connected between the sleeve gauge cylinder 1 and the flow controller 3 as a connecting piece.
The whole flow controller 3 is in a cylindrical structure, and the upper part of the flow controller is connected with the flow discharger 4 through screw threads. The inner cavity of the flow controller 3 is sequentially provided with a filtrate plate 3-4, a ball blocking boss 3-1, a sealing ball 3-2 and a ball sealing plate 3-3 from bottom to top.
The diameter of the sealing ball 3-2 is smaller than the diameter of an inner cavity of the flow controller 3, the sealing ball 3-2 is limited between the ball blocking convex seat 3-1 and the ball sealing plate 3-3 and can move up and down, the sealing ball 3-2 can also be seated on the ball blocking convex seat 3-1 to plug the inner cavity of the flow controller 3, the sealing ball 3-2 reduces the gap of the inner cavity of the flow controller 3 to reduce the throughput of fluid from bottom to top, and the problem that fluid is sprayed from the top in the lowering process of the drift tube column is solved.
The ball blocking convex seat 3-1 is an annular body and is formed by protruding towards the middle part of the inner cavity of the flow controller 3, a through hole which penetrates through the ball blocking convex seat 3-1 up and down is formed in the middle part of the ball blocking convex seat 3-1 to ensure that the inner cavity of the flow controller 3 is smooth up and down, and a spherical groove or an annular conical groove which is convenient for the sealing ball 3-2 to sit is formed in the upper part of the through hole; the processing parameters of the convex block ball seat 3-1 meet the pressure-bearing sealing requirements of the sealing ball 3-2; when the sealing ball 3-2 is seated in the ball blocking convex seat 3-1, the sealing ball is used for blocking the fluid from passing through from top to bottom, and the sealing inspection of the tubular column is completed.
The ball sealing plate 3-3 is a disc-shaped structure and is arranged at the top of the inner cavity of the flow controller 3, and the ball sealing plate 3-3 is mainly used for controlling the sealing ball 3-2 not to be separated from the flow controller 3; in order to ensure the smoothness of the inner cavity of the flow controller 3, a plurality of overflowing holes are formed in the ball sealing plate 3-3, and after the sealing ball 3-2 goes upwards, it is required to ensure that the sealing ball 3-2 cannot simultaneously shield all the overflowing holes.
The filtrate plate 3-4 is of a disc-shaped structure and is arranged at the bottom of the inner cavity of the flow controller 3, and a plurality of small-diameter through holes which are arranged in a vertically through mode are formed in the filtrate plate 3-4, so that large-diameter solids are prevented from entering between the ball blocking boss 3-1 and the sealing ball 3-2 to damage the sealing capacity of the ball blocking boss; and the maximum flow area of the filtrate plates 3-4 is smaller than the flow area of the inner cavity of the oil pipe used for construction so as to support the flow control function of the flow controller 3.
The whole flow discharger 4 is of a cylindrical structure, and the upper part of the flow discharger is connected with the second joint 5 through threads. A connecting pin hole 4-1 is transversely formed in the outer wall of the flow discharger 4 in a penetrating mode, a screw thread in the connecting pin hole 4-1 is vertically connected with a hollow blocking pin 4-2, the hollow blocking pin 4-2 is used for controlling fluid to be discharged from the inner cavity of the flow discharger 4 outwards, the inner cavity of the pipe column above the ball blocking boss 3-1 can be supported to be sealed when the hollow blocking pin 4-2 is intact, and liquid in the inner cavity of the pipe column above the ball blocking boss 3-1 can be discharged after the hollow blocking pin is damaged.
As shown in figure 2, the outer wall of the hollow plug pin 4-2 is provided with a pin body male thread 4-2-1 so as to ensure that the pressure-resistant grade can exceed the pressure of a pipe column during pressure test after the pipe type female thread connected with the pin hole 4-1 is connected; the middle part of the hollow plugging pin 4-2 is provided with a central plugging hole 4-2-2, the central plugging hole 4-2-2 is from outside to inside but not through, namely the central plugging hole 4-2-2 is a blind hole and is used for supporting the sealing of the inner cavity of the tubular column above the flow controller 3; one end of the hollow plug pin 4-2 is provided with a rotation-assisting boss 4-2-3 which is used for assisting the hollow plug pin 4-2 to rotate by using a pliers when being connected with the pin connecting hole 4-1; the hollow blocking pin 4-2 is provided with a cracking groove 4-2-4 on the outer surface of the central blocking hole 4-2-2, so that the blocking function of the flow discharger 4 is damaged after a pin breaking rod 6 is put in as required, and the flow discharge function is realized.
The second joint 5 is used for being connected with a construction oil pipe so as to connect the whole multifunctional drift size gauge tool on the construction oil pipe. In addition, the inner cavity design of the second joint 5 should allow the passage of the break pin 6.
The pin breaking rod 6 breaks the hollow blocking pin 4-2 by gravity, namely after the sealing inspection of the tubular column is finished by using fluid, the fluid above the ball blocking convex seat 3-1 is discharged through the pin connecting hole 4-1, and the fluid with the liquid level higher than the well mouth in the inner cavity is avoided when the tubular column is pulled out of the well. In addition, the diameter of the circular section at the lower end of the pin breaking rod 6 is larger than the radius of the inner cavity of the flow discharger 4, so that the hollow plug pin 4-2 can be impacted after being thrown down.
The utility model discloses well ball sealer 3-2 has reduced the inner chamber space of accuse stream ware 3, and it is less than oil pipe inner chamber volume to get into the fluid volume, therefore can not have the fluid again when the drift size gauge tool is transferred and spout from the oil pipe top, has eliminated the pollution hidden danger of falling to the ground. The fluid up-stroke impact sealing ball 3-2 leaves the ball-blocking convex seat 3-1 without influencing the fluid to pass through, the reverse well-flushing operation which must be carried out after the well is communicated can be smoothly finished, the sealing ball 3-2 automatically sits in the ball-blocking convex seat 3-1 to be positively pressurized after the well is flushed, the pressure test of the tubular column can be realized, and the waste of the necessary tubular column pressure testing procedures of pump descending, separate injection, hole transmission and the like is avoided. The hollow plug pin 4-2 is arranged in the flow relief device 4, and the hollow plug pin 4-2 can be cut off by throwing the breaking pin rod 6 after the pressure test of the tubular column is finished, so that the flow relief of the tubular column is realized, and the pollution caused by falling to the ground due to the overflow of fluid from the upper opening of the oil pipe is avoided.
In summary, the present invention is not limited to the above embodiments, and those skilled in the art can provide other embodiments within the technical teaching of the present invention, but these embodiments are included in the scope of the present invention.
Claims (8)
1. A multifunctional drift size gauge comprises a sleeve gauge cylinder, a first joint, a flow control device, a flow relief device and a second joint, wherein the inner cavities of the sleeve gauge cylinder are communicated and are sequentially and hermetically connected from bottom to top, the second joint is connected with a construction oil pipe,
the inner cavity of the flow controller is sequentially provided with a ball blocking convex seat, a sealing ball and a ball sealing plate from bottom to top, wherein the diameter of the sealing ball is smaller than that of the inner cavity of the flow controller, the sealing ball can be limited between the ball blocking convex seat and the ball sealing plate in an up-and-down movable manner, a through hole which penetrates up and down is formed in the middle of the ball blocking convex seat, the sealing ball can be seated in the through hole of the ball blocking convex seat to seal the inner cavity of the flow controller, a plurality of overflowing holes are formed in the ball sealing plate, and the ascending sealing ball cannot simultaneously shield all the overflowing holes;
the outer wall of the flow discharger transversely penetrates through a connecting pin hole, a hollow plugging pin is connected with the inner thread of the connecting pin hole in a sealing mode, a central plugging hole is formed in the middle of the hollow plugging pin, the central plugging hole is a blind hole, the closed end of the central plugging hole extends into the inner cavity of the flow discharger, the open end faces the outside of the flow discharger, and the part, extending into the inner cavity of the flow discharger, of the hollow plugging pin is damaged by a dropped pin breaking rod and enables the inner cavity of the flow discharger to be communicated with the outside to achieve the flow discharging function.
2. The multi-functional drift size gauge of claim 1, wherein the casing gauge cylinder is circumferentially provided with a plurality of inclined water diversion holes from the top to the middle of the inner cavity thereof for discharging fluid which enters the inner cavity of the casing gauge cylinder but cannot enter the inner cavity of the flow control device.
3. The multifunctional drift size gauge tool of claim 1, wherein a filtrate plate is further arranged in the inner cavity of the flow controller and below the ball-blocking boss, and a plurality of small-diameter through holes are formed in the filtrate plate and used for preventing large-diameter solids from going upwards continuously so as not to affect the sealing property between the ball-blocking boss and the sealing ball.
4. The multi-functional drift size gauge tool of claim 3, characterized in that the maximum flow area of the filtrate plate is smaller than the flow area of the inner cavity of the tubing used for construction, so as to support the flow control function of the flow control device.
5. The multi-functional drift size gauge of claim 1, wherein the diameter of the circular cross-section of the lower end of the break pin is larger than the radius of the inner cavity of the flow discharger to ensure that the break pin can strike the hollow plug pin after being thrown.
6. The multi-functional drift size gauge tool of any one of claims 1 to 5, wherein the outer wall of the hollow plug pin is formed with a pin body male thread to ensure that the pressure rating after connecting with the tubular female thread of the pin hole can exceed the pressure at the time of pressure testing of the tubular string.
7. The multi-functional drift size gauge tool of claim 6, wherein a rotation assisting boss is formed at one end of the hollow plug pin, so that the hollow plug pin can be rotated with the assistance of a clamp when being connected with the connecting pin hole.
8. The multi-functional drift size gauge of claim 7, wherein the outer surface of the hollow stop pin is formed with an annular relief groove to facilitate the breaking pin to break the hollow stop pin and break the seal of the flow diverter to perform the flow discharge function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020470007.0U CN212154723U (en) | 2020-04-02 | 2020-04-02 | Multifunctional drift size gauge tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020470007.0U CN212154723U (en) | 2020-04-02 | 2020-04-02 | Multifunctional drift size gauge tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212154723U true CN212154723U (en) | 2020-12-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020470007.0U Active CN212154723U (en) | 2020-04-02 | 2020-04-02 | Multifunctional drift size gauge tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212154723U (en) |
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2020
- 2020-04-02 CN CN202020470007.0U patent/CN212154723U/en active Active
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