CN210003246U - Throttling pressure-stabilizing circulating well cementing device - Google Patents

Abstract

The utility model discloses a throttle steady voltage circulation well cementation device, including ground and sleeve pipe, the sleeve pipe is inserted and is established subaerial, the fixed plate that two symmetries of sheathed tube lateral wall fixedly connected with set up, the subaerial movable groove that sets up of two symmetries that is equipped with, the inside wall fixedly connected with branch in movable groove, the slider has been cup jointed in the slip on branch, the lateral wall of slider and the inside wall sliding connection in movable groove, the lateral wall cover of branch is equipped with the spring. In the utility model, the effect that the springs on the two sides push the sliding block to move relatively is achieved through the matching action of the springs, the sliding block, the L-shaped inserting rod and the fixed plate, the function that the L-shaped inserting rod fixes the sleeve is realized, the structure is simple, the installation and the disassembly are convenient, and the practicability is strong; through the cooperation of U type pipe and booster pump, reached the booster pump and carried out the effect that the pressure boost to the throttle pipe, realized keeping the stable function of intraductal pressure of cover.

Description

Throttling pressure-stabilizing circulating well cementing device

Technical Field

The utility model relates to a well cementation device technical field, more specifically says, in particular to throttle steady voltage circulation well cementation device.

Background

With the continuous promotion of oil and gas development, the encryption and deepening of old oil areas become the trend of current oil development. With the gradual deepening of the production horizon and the encryption of the well hole arrangement and the increase of water injection and steam injection wells, the pressure distribution of the drilling and production horizon becomes increasingly complex, which brings more challenges to well completion and oil production.

According to the Chinese patent authorization publication No. CN208564496U, the throttling pressure stabilizing circulating well cementation device comprises a liquid collecting pipe, a throttling pressure gauge, a circulating pressure gauge, a throttling pipe, a sleeve, a vertical plate, a pin, a hinged rod, a sliding groove, a driving wheel, a threaded rod, a second threaded rod, a driven wheel, a stop block, a fixing block, a throttling valve, a sliding block and a spring, wherein the vertical plate is fixed on the outer side wall of the sleeve, then the sleeve is pushed downwards, the sleeve drives the hinged rod to push the sliding block to move in the sliding groove, the sliding block moves to drive the threaded rod to rotate the threaded rod to rotate to drive the driving wheel, the driving wheel rotates to drive the driven wheel to rotate, the driven wheel rotates to drive the second threaded rod to rotate to push the fixing block to be clamped between the two stop blocks fixed on the outer side wall of the sleeve, the throttling valve can be adjusted according to construction requirements, fixed additional pressure can be effectively added into the sleeve, high-pressure, air and water immersion pressure values in the bottom of a well can be controlled, the circulating pressure in an annulus can be visually displayed on the circulating pressure gauge and the well to ensure the quality of oil and water in an annulus through air-pressure waiting for well.

However, when the device is used for fixing the sleeve, the sleeve is fixed through a complex structure, and in the actual use process, the operation is complex and the practical effect is poor.

To this end, we propose a choke and surge circulation cementing device to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving and having present throttle steady voltage circulation cementing device among the prior art when fixing the sleeve pipe, realized through complicated structure carrying out the effect of fixing to the sleeve pipe, at the in-process of in-service use, the operation is more complicated and the not good problem of practical effect, and the throttle steady voltage circulation cementing device who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

throttle steady voltage circulation well cementation device, including ground and sleeve pipe, the sleeve pipe is inserted and is established subaerial, the fixed plate that two symmetries of sheathed tube lateral wall fixedly connected with set up, the subaerial movable groove that is equipped with two symmetries and sets up, the inside wall fixedly connected with branch of movable groove, the slider has been cup jointed in the slip on the branch, the lateral wall of slider and the inside wall sliding connection of movable groove, the lateral wall cover of branch is equipped with the spring, the both ends of spring are kept away from sheathed tube end inside wall fixed connection with the lateral wall of slider and movable groove respectively, the bottom fixedly connected with L type inserted bar of slider, the end of L type inserted bar runs through ground and is connected with the fixed plate, be equipped with a plurality of slots that correspond with L type inserted bar on the fixed plate, subaerial being equipped with the movable chamber that corresponds with L type inserted bar, movable chamber communicates with each other with movable groove, the sleeve pipe is connected with the collection liquid tank through throttle pipe and.

Preferably, the throttle valves are arranged on the throttle pipe and the recovery pipe.

Preferably, a circulation pressure gauge is installed on the throttling pipe, and a throttling pressure gauge is installed on the recovery pipe.

Preferably, booster mechanism includes the U type pipe of fixed connection at the throttle pipe lateral wall, U type pipe communicates with each other with the throttle pipe, install the booster pump on the U type pipe, booster pump and choke valve parallel arrangement.

Preferably, the top of the sliding block is fixedly connected with a fixing rod.

The embodiment of the utility model provides a technical scheme can include following beneficial effect:

1. through the matching action of the spring, the sliding block, the L-shaped inserted rod and the fixed plate, the effect that the springs on the two sides push the sliding block to move relatively is achieved, the function that the L-shaped inserted rod fixes the sleeve is realized, the structure is simple, the installation and the disassembly are convenient, and the practicability is strong;

2. through the cooperation of U type pipe and booster pump, reached the booster pump and carried out the effect that the pressure boost to the throttle pipe, realized keeping the stable function of intraductal pressure of cover.

Drawings

FIG. 1 is a schematic structural view of the throttling pressure-stabilizing circulation cementing device provided by the utility model;

FIG. 2 is a schematic view of the structure at A in FIG. 1;

fig. 3 is the utility model provides a connection structure sketch map of sleeve pipe, fixed plate and L type jack among throttle steady voltage circulation well cementation device.

In the figure: 1. a sleeve; 2. a throttle pipe; 3. a circulating pressure gauge; 4. a throttle valve; 5. a liquid collecting tank; 6. a fixing plate; 7. a strut; 8. a slider; 9. an L-shaped inserted link; 10. a spring; 11. a movable cavity; 12. a movable groove; 13. fixing the rod; 14. a throttling pressure gauge; 15. a booster pump; 16. a U-shaped pipe; 17. and (7) recovering the pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments, not all embodiments, of the present invention .

Referring to fig. 1-3, a throttling and pressure-stabilizing circulation well cementation device, including a ground and a casing 1, the casing 1 is inserted into the ground, two symmetrically-arranged fixing plates 6 are fixedly connected to the outer side wall of the casing 1, two symmetrically-arranged movable grooves 12 are arranged on the ground, a supporting rod 7 is fixedly connected to the inner side wall of each movable groove 12, a slider 8 is slidably sleeved on the supporting rod 7, the outer side wall of the slider 8 is slidably connected to the inner side wall of each movable groove 12, a spring 10 is sleeved on the outer side wall of the supporting rod 7, two ends of the spring 10 are respectively fixedly connected to the outer side wall of the slider 8 and the inner side wall of the movable groove 12 far away from the casing 1 at end, an L-shaped inserting rod 9 is fixedly connected to the bottom of the slider 8, the end of the L-shaped inserting rod 9 penetrates through the ground to be connected to the fixing plate 6, a plurality of slots corresponding to the L-shaped inserting rod 9 are arranged on the fixing plate 6, a movable cavity 11 corresponding to the L-shaped inserting rod 9 is arranged on the ground, the movable cavity 11 is communicated with the movable groove 12, a fixing rod 13 is fixedly connected to the top of the slider 8, it is described that the elastic coefficients of the spring 10 and the slider 10 are both in the conventional technology, the sliding plate is easy to use of the slider in a simple manner of pushing mechanism that the slider is.

The casing 1 is respectively connected with a liquid collecting tank 5 through a throttle pipe 2 and a recovery pipe 17, a supercharging mechanism is fixedly connected onto the throttle pipe 2, throttle valves 4 are respectively arranged on the throttle pipe 2 and the recovery pipe 17, a circulation pressure gauge 3 is arranged on the throttle pipe 2, a throttle pressure gauge 14 is arranged on the recovery pipe 17, the throttle valves 4 are used for controlling the flow rate of liquid in the throttle pipe 2 and the flow rate of liquid in the recovery pipe 17, constant additional pressure can be effectively added into the casing 1 to control the invasion of high-pressure oil, gas and water in a shaft bottom, the additional pressure value can be visually displayed on the circulation pressure gauge 3 and the throttle pressure gauge 14 and can be adjusted at any time, after slurry replacement is finished, the annulus of a borehole can be pressurized through the throttle pipe 2, the invasion of oil, gas and water in a waiting period can be inhibited through annulus pressure building, and the quality of well cementation is ensured.

The booster mechanism comprises a U-shaped pipe 16 fixedly connected to the outer side wall of the throttle pipe 2, the U-shaped pipe 16 is communicated with the throttle pipe 2, a booster pump 15 is mounted on the U-shaped pipe 16, the booster pump 15 is arranged in parallel with the throttle valve 4, it should be noted that the power supply technology of the booster pump 15 and the control technology of the booster pump 15 are the prior art, and description is not repeated herein, when the pressure in the casing 1 cannot be adjusted by adjusting the throttle valve 4, the throttle valve 4 on the throttle pipe 2 is closed, then the booster pump 15 is started to accelerate the liquid flowing speed in the throttle pipe 2, and meanwhile, the pressure in the casing 1 is effectively increased, so that the pressure in the casing 1 is kept stable, and the pressure in the casing 1 is prevented from being unstable, and the performance of well cementation is.

In the utility model, when the well cementation work is needed, the sleeve 1 is inserted into the pre-drilled well cementation hole, then the springs 10 at the two sides are loosened, the springs 10 at the two sides of the sleeve 1 respectively push the two sliders 8 to move relatively, the sliders 8 move to drive the L-shaped inserted rod 9 to be inserted into the corresponding slot on the fixing plate 6, the function of fixing the sleeve 1 is realized, the fixing mode is simple, the cost is low, the practicability is strong, the use is convenient during the construction, then the well cementation construction cycle and the cement injection operation are carried out, in the construction process, the numerical value on the circulating pressure gauge 3 and the numerical value on the throttling pressure gauge 14 are observed, the pressure inside the sleeve 1 is prevented from greatly fluctuating, when the pressure inside the sleeve 1 rises or falls, the pressure inside the sleeve 1 can be stabilized through the regulator throttle valve 4, when the pressure inside the sleeve 1 can not be regulated through the regulator throttle valve 4, the throttle valve 4 on the throttle pipe 2 is closed, then the booster pump 15 is started to accelerate the circulation speed of the liquid in the throttle pipe 2, and meanwhile, the pressure in the sleeve 1 is effectively increased, so that the pressure in the sleeve 1 is kept stable, and the phenomenon that the pressure in the sleeve 1 is unstable to influence the implementation of well cementation is avoided.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model, including circuit connection adopts conventional connection mode among the prior art, does not detailed here again.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (5)

1. Throttle steady voltage circulation well cementation device, including ground and sleeve pipe (1), its characterized in that, sleeve pipe (1) is inserted and is established subaerial, fixed plate (6) that two symmetries of lateral wall fixedly connected with of sleeve pipe (1) set up, subaerial movable groove (12) that two symmetries set up that are equipped with, the inside wall fixedly connected with branch (7) of movable groove (12), slide on branch (7) and cup jointed slider (8), the lateral wall of slider (8) and the inside wall sliding connection of movable groove (12), the lateral wall cover of branch (7) is equipped with spring (10), the end inside wall fixed connection of sleeve pipe (1) is kept away from respectively with the lateral wall of slider (8) and movable groove (12) in the both ends of spring (10), the bottom fixedly connected with L type inserted bar (9) of slider (8), end of L type inserted bar (9) runs through ground and is connected with fixed plate (6), be equipped with a plurality of slots that correspond with L type inserted bar (9) on fixed plate (6), be equipped with movable chamber (11) that correspond with L type inserted bar (9) movable chamber (11) and throttle pipe (11) and communicating with recovery tube (17) respectively on the fixed plate (17) and throttle pipe (17).

2. The apparatus for cementing according to the claim 1, characterized in that the throttle (4) is installed on the throttle pipe (2) and on the recovery pipe (17).

3. The throttle pressure-stabilizing circulation well cementation device according to claim 1, characterized in that a circulation pressure gauge (3) is installed on the throttle pipe (2), and a throttle pressure gauge (14) is installed on the recovery pipe (17).

4. The throttling and pressure stabilizing circulation well cementation device according to claim 1, characterized in that the boosting mechanism comprises a U-shaped pipe (16) fixedly connected to the outer side wall of the throttling pipe (2), the U-shaped pipe (16) is communicated with the throttling pipe (2), a boosting pump (15) is installed on the U-shaped pipe (16), and the boosting pump (15) is arranged in parallel with the throttling valve (4).

5. The well cementation device according to claim 1, characterized in that a fixing rod (13) is fixedly connected to the top of the sliding block (8).

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