CN211648138U

CN211648138U - A remove stifled device for sample gate

Info

Publication number: CN211648138U
Application number: CN201921987282.3U
Authority: CN
Inventors: 董青松; 徐立鑫; 刘建林; 刘广星; 谭云港; 王志龙; 宋博军; 黄胜军
Original assignee: Petrochina Co Ltd
Current assignee: Petrochina Co Ltd
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2020-10-09
Anticipated expiration: 2029-11-15

Abstract

The utility model discloses a remove stifled device for sample gate belongs to oil recovery well head sample field. The blockage removing device comprises a main body and a push rod. The main part includes casing, valve joint and shutoff piece, but the cartridge of ejector pin axial sliding ground in the casing, and the valve joint suit is at the first end of ejector pin, and the sealed suit of shutoff piece is at the second end of ejector pin, and the first end of ejector pin is provided with the tool bit. This openly connects the sample gate through the valve joint for the plug can be bored through to the tool bit, thereby has improved the efficiency of unfreezing when sample gate freezes stifled greatly.

Description

A remove stifled device for sample gate

Technical Field

The utility model belongs to oil recovery well head sample field, in particular to remove stifled device for sample gate.

Background

Sampling from the christmas tree is an important fundamental task in the production of oil fields, by which data relating to the liquid in the well can be tested.

In winter, because the decline of air temperature, the stifled phenomenon often can appear freezing by the sample gate on the production tree for the operator can't directly take a sample. In the related art, a hot water blockage relieving method is usually adopted for unfreezing, specifically, a sampling gate is poured by hot water, so that a blockage at the sampling gate is melted, the freezing blockage is relieved, and then sampling is performed.

However, the method of thawing the blockage by using hot water requires operators to carry a large amount of hot water, and the pouring time is long, so that the thawing efficiency is low.

SUMMERY OF THE UTILITY MODEL

The embodiment of the disclosure provides a remove stifled device for sample gate, can improve the efficiency of unfreezing when sample gate freezes stifled. The technical scheme is as follows:

the embodiment of the disclosure provides a blockage removing device for a sampling gate, which comprises a main body and an ejector rod;

the main part includes casing, valve joint and shutoff piece, but the ejector pin cartridge is in with axial sliding in the casing, the valve joint suit is in on the ejector pin, the valve joint with the first end of ejector pin all is located one side of casing, just the valve joint fixed mounting be in on the casing, the sealed suit of shutoff piece is in on the ejector pin, the shutoff piece with the second end of ejector pin all is located the opposite side of casing, just shutoff piece fixed mounting be in on the casing, the first end of ejector pin is provided with the tool bit.

Optionally, the blocking piece comprises a blocking cylinder and a blocking plug, the blocking cylinder is sleeved at the second end of the ejector rod, the blocking cylinder is fixedly installed on the shell, and the blocking plug is hermetically clamped between the ejector rod and the blocking cylinder.

Optionally, the plugging plug includes a packing and a gland, the packing is plugged between the plugging cylinder and the ejector rod, the gland is sleeved at the second end of the ejector rod, and the gland is detachably inserted into the end face of the plugging cylinder, which faces away from the housing.

Optionally, the blocking piece further comprises a pressing cap, the pressing cap covers the end face, deviating from the shell, of the blocking barrel, and the pressing cover is located between the pressing cap and the blocking barrel.

Optionally, the pressing cap is in threaded connection with the plugging barrel.

Optionally, the first end of ejector pin is provided with annular boss coaxially, the external diameter of annular boss is greater than the external diameter of ejector pin, the tool bit is fixed annular boss deviates from on the side of ejector pin.

Optionally, the second end of the push rod is detachably provided with a rotating handle.

Optionally, the coaxial connecting rod that is provided with of second end of ejector pin, the external diameter of connecting rod is less than the ejector pin external diameter, the twist grip cover is established on the connecting rod, the cover is equipped with locking bolt on the connecting rod, twist grip presss from both sides to be established the ejector pin with between the locking bolt.

Optionally, a cavity is formed in the shell, a pressure gauge is arranged on the shell, and the pressure gauge is communicated with the cavity of the shell.

Optionally, the housing is further provided with a vent valve, and the vent valve is communicated with the cavity of the housing.

The technical scheme provided by the embodiment of the disclosure has the following beneficial effects:

when the sampling gate is processed and frozen and blocked, the blocking removing device for the sampling gate is firstly installed on the sampling gate of the Christmas tree through the valve joint. Then, the sampling gate is opened and the second end of the ejector rod is pushed, so that the cutter head moves towards the sampling gate, and the blockage is drilled through. After the plug is drilled through, liquid in the sampling valve can gush out along the gap between the ejector rod and the valve joint, but the plugging piece is arranged between the ejector rod and the shell, so the gushed liquid can be plugged by the plugging piece, and the liquid is plugged in the gap between the ejector rod and the valve joint. Then, the cutter head is withdrawn from the sampling gate through the ejector rod, and the sampling gate is closed. And finally, taking down the valve joint from the sampling gate, and then finishing the dredging of the frozen plug of the sampling gate. That is to say, this stifled device that removes that this disclosure provided connects the sample gate through valve joint for the plug can be bored through to the tool bit, thereby accomplishes the unfreezing of sample gate fast. The method does not need to pour hot water, and greatly improves the unfreezing efficiency of the sampling gate when the sampling gate is frozen and blocked.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

FIG. 1 is a partial cross-sectional view of a deblock device for a sampling gate provided by an embodiment of the present disclosure;

fig. 2 is a cross-sectional view of a closure provided by an embodiment of the present disclosure.

The symbols in the drawings represent the following meanings:

1. a main body; 11. a housing; 111. a pressure gauge; 112. an atmospheric valve; 12. a valve joint; 13. a blocking member; 131. plugging the cylinder; 132. blocking; 1321. a filler; 1322. a gland; 1323. pressing the cap; 2. a top rod; 21. a cutter head; 22. an annular boss; 23. rotating the handle; 24. a connecting rod; 25. and locking the bolt.

Detailed Description

To make the objects, technical solutions and advantages of the present disclosure more apparent, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

The embodiment of the disclosure provides a blockage removing device for a sampling gate, which comprises a main body 1 and a top rod 2, as shown in fig. 1.

Main part 1 includes casing 11, valve joint 12 and shutoff piece 13, but 2 cartridge of ejector pin axial sliding ground are in casing 11, valve joint 12 suit is on ejector pin 2, the first end of valve joint 12 and ejector pin 2 all is located one side of casing 11, and valve joint 12 fixed mounting is on casing 11, the sealed suit of shutoff piece 13 is on ejector pin 2, the second end of shutoff piece 13 and ejector pin 2 all is located the opposite side of casing 11, and shutoff piece 13 fixed mounting is on casing 11, the first end of ejector pin 2 is provided with tool bit 21.

When the blockage removing device for the sampling gate provided by the embodiment of the disclosure is used for treating frozen blockage of the sampling gate, firstly, the blockage removing device is installed on the sampling gate of a Christmas tree through the valve joint 12. The sampling gate is then opened and the second end of the ram 2 is pushed so that the bit 21 moves towards the sampling gate, thereby drilling through the blockage. When the plug is drilled through, the liquid in the sampling valve can gush out along the gap between the ejector rod 2 and the valve joint 12, but because the plugging piece 13 is arranged between the ejector rod 2 and the shell 11, the gushing liquid can be plugged by the plugging piece 13, so that the liquid is plugged in the gap between the ejector rod 2 and the valve joint 12. Then, the cutter head 21 is withdrawn from the sampling gate by the ejector 2, and the sampling gate is closed. And finally, taking down the valve joint 12 from the sampling gate, and then completing the dredging of the frozen blockage of the sampling gate. That is, the blockage removing device provided by the present disclosure is connected to the sampling gate through the valve connector 12, so that the cutter head 21 can drill through the blockage, thereby rapidly completing the thawing of the sampling gate. The method does not need to pour hot water, and greatly improves the unfreezing efficiency of the sampling gate when the sampling gate is frozen and blocked.

And, because the liquid that the sample gate flows out is sealed in removing stifled device through shutoff piece 13 for when the sample gate was mediation, the liquid in the sample gate can not flow out along the clearance of ejector pin 2 with valve joint 12, also can not lead to revealing of liquid in the sample gate yet.

Fig. 2 is a cross-sectional view of a plugging member provided in an embodiment of the present disclosure, and as shown in fig. 2, in this embodiment, the plugging member 13 includes a plugging cylinder 131 and a plugging plug 132, the plugging cylinder 131 is sleeved on the second end of the ram 2, the plugging cylinder 131 is fixedly mounted on the housing 11, and the plugging plug 132 is sealingly clamped between the ram 2 and the plugging cylinder 131.

In the above embodiment, the arrangement of the blocking cylinder 131 can convert the sealing between the jack 2 and the housing 11 into the sealing between the jack 2 and the blocking cylinder 131, so that the gap between the jack 2 and the blocking cylinder 131 is blocked by the blocking plug 132. Since the sealing length between the blocking cylinder 131 and the push rod 2 is longer than the axial length of the gap between the push rod 2 and the housing 11, the axial distance of the gap can be increased by the blocking cylinder 131, so that the gap can be conveniently sealed by the blocking plug 132, and thus, the leakage of the liquid in the sampling gate can be conveniently prevented.

Optionally, the plugging plug 132 comprises a packing 1321 and a gland 1322, the packing 1321 is packed between the plugging cylinder 131 and the ejector rod 2, the gland 1322 is sleeved on the second end of the ejector rod 2, and the gland 1322 is detachably inserted on the end face of the plugging cylinder 131 facing away from the housing 11.

In the above embodiment, the gap space can be filled by the packing 1321, and the packing 1321 can be compressed by the gland 1322, thereby improving the sealing effect of the packing 1321.

Illustratively, the filler 1321 may be a plastic film.

With continued reference to fig. 2, the blocking member 13 further includes a pressing cap 1323, the pressing cap 1323 covers the end surface of the blocking barrel 131 facing away from the housing 11, and the pressing cover 1322 is located between the pressing cap 1323 and the blocking barrel 131.

In the above embodiment, the pressure cap 1323 functions to fix the pressure cover 1322, and prevents the pressure of the liquid flowing into the housing 11 from being excessively increased and the pressure cover 1322 from being removed.

Illustratively, the press cap 1323 is threadably connected to the plug barrel 131.

In the above embodiment, the pressing cap 1323 is screwed with the blocking barrel 131, so that on one hand, the connection strength between the pressing cap 1323 and the blocking barrel 131 can be increased, thereby facilitating fixing of the pressing cover 1322, and on the other hand, replacement of the packing 1321 is facilitated.

It is easily understood that the ram 2 rubs against the packing 1321 during a long reciprocating movement to affect the sealing performance of the packing 1321, and thus the gland 1323 and the gland 1322 need to be periodically disassembled to replace the packing 1321.

Referring again to fig. 1, in the present embodiment, the first end of the push rod 2 is coaxially provided with an annular boss 22, the outer diameter of the annular boss 22 is larger than that of the push rod 2, and the cutter head 21 is fixed on the side surface of the annular boss 22 away from the push rod 2.

In the above embodiment, the annular boss 22 can increase the contact area of the cutter head 21 with the jack 2, thereby facilitating the installation of the cutter head 21.

In addition, the annular boss 22 can abut against the blocking cylinder 131, so that when the sampling gate has too high pressure of liquid flowing into the housing 11 and the push rod 2 moves leftwards, the push rod 2 is pushed out of the blocking cylinder 131, thereby preventing liquid leakage.

Illustratively, the cutting head 21 is welded to the annular boss 22.

In the above embodiment, the welding connection between the cutting head 21 and the annular boss 22 can enhance the connection strength between the cutting head 21 and the annular boss 22.

Optionally, a turning handle 23 is detachably mounted to the second end of the jack 2.

In the above embodiment, the turning handle 23 facilitates the manual pushing and rotating of the jack 2.

Illustratively, the rotating handle 23 is a wheel-like structure.

Optionally, a connecting rod 24 is coaxially arranged at the second end of the ejector rod 2, the outer diameter of the connecting rod 24 is smaller than that of the ejector rod 2, the rotating handle 23 is sleeved on the connecting rod 24, a locking bolt 25 is sleeved on the connecting rod 24, and the rotating handle 23 is clamped between the ejector rod 2 and the locking bolt 25.

In the above embodiment, the locking bolt 25 and the connecting rod 24 can be used to assemble and disassemble the turning handle 23, which facilitates the replacement of the mandril 2 and thus the cutter head 21.

Illustratively, when it is desired to change the jack 2, the locking bolt 25 is removed, the turning handle 23 is removed from the connecting rod 24, and the jack 2 is removed from the right end of the housing 11.

Illustratively, the connecting rod 24 may be a square structural member.

In the above embodiment, the connecting rod 24 may be a square structure, so that the turning handle 23 rotates the connecting rod 24, thereby preventing the relative rotation between the turning handle 23 and the connecting rod 24.

Optionally, the housing 11 has a cavity therein, and a pressure gauge 111 is disposed on the housing 11, and the pressure gauge 111 is communicated with the cavity of the housing 11.

In the above embodiment, the pressure gauge 111 functions to detect the pressure of the liquid in the sampling gate, and determines whether the bit 21 has drilled through a blockage based on the pressure.

For example, when the sampling gate is dredged, the liquid in the sampling gate flows into the cavity of the shell 11 through the gap between the valve joint 12 and the ejector rod 2, and the liquid cannot flow out of the cavity due to the blocking effect of the blocking piece 13.

It is easy to understand that when the sampling gate is unfrozen by the blockage removing device, if the pressure gauge 111 indicates that the sampling gate has no pressure, the blockage is not dredged, and the dredging by the cutter head 21 should be continued until the pressure of the pressure gauge 111 has pressure and tends to be stable, and at this moment, the frozen blockage dredging of the sampling gate is completed.

Optionally, a vent valve 112 is further disposed on the housing 11, and the vent valve 112 is communicated with the cavity of the housing 11.

In the above embodiment, the air release valve 112 releases the pressure of the high-pressure liquid in the housing 11, thereby facilitating the removal of the block removing device from the sampling gate.

The operation of the blockage removal device is briefly described as follows:

first, the tool bit 21 is inserted into the valve connector 12. The valve connector 12 is then connected to the sampling gate of the christmas tree. Then, the sampling gate is opened, the turning handle 23 is pushed and rotated in the direction close to the valve joint 12, so that the cutter head 21 pushes the blockage, and the reading of the pressure gauge 111 is observed until the blockage is drilled through. Then, the turning handle 23 is pulled back, so that the bit 21 is retreated from the sampling gate and the sampling gate is closed. Then, the air release valve 112 is opened until the pressure gauge 111 reads zero. And finally, taking down the valve joint 12 from the sampling gate, thereby completing the dredging of the frozen blockage of the sampling gate.

The above description is intended to be exemplary only and not to limit the present disclosure, and any modification, equivalent replacement, or improvement made without departing from the spirit and scope of the present disclosure is to be considered as the same as the present disclosure.

Claims

1. A blockage removing device for a sampling gate is characterized by comprising a main body (1) and a top rod (2);

the main part (1) comprises a shell (11), a valve joint (12) and a plugging piece (13), wherein the ejector rod (2) can be axially slidably inserted into the shell (11), the valve joint (12) is sleeved on the ejector rod (2), the first end of the valve joint (12) and the first end of the ejector rod (2) are both located on one side of the shell (11), the valve joint (12) is fixedly installed on the shell (11), the plugging piece (13) is hermetically sleeved on the ejector rod (2), the second end of the plugging piece (13) and the second end of the ejector rod (2) are both located on the other side of the shell (11), the plugging piece (13) is fixedly installed on the shell (11), and a tool bit (21) is arranged at the first end of the ejector rod (2).

2. The block removing device according to claim 1, wherein the block piece (13) comprises a block cylinder (131) and a block plug (132), the block cylinder (131) is sleeved on the second end of the ejector rod (2), the block cylinder (131) is fixedly installed on the shell (11), and the block plug (132) is clamped between the ejector rod (2) and the block cylinder (131) in a sealing manner.

3. The de-plugging device according to claim 2, wherein the plugging member (132) comprises a packing (1321) and a gland (1322), the packing (1321) is plugged between the plugging cylinder (131) and the ejector rod (2), the gland (1322) is sleeved on the second end of the ejector rod (2), and the gland (1322) is detachably inserted on the end surface of the plugging cylinder (131) facing away from the housing (11).

4. A de-plugging device according to claim 3, wherein said plugging member (13) further comprises a pressing cap (1323), said pressing cap (1323) is covered on the end surface of said plugging cylinder (131) facing away from said housing (11), and said pressing cover (1322) is located between said pressing cap (1323) and said plugging cylinder (131).

5. The block removing device according to claim 4, characterized in that the pressing cap (1323) is screwed with the block cylinder (131).

6. The blockage removing device according to claim 1, wherein the first end of the ejector rod (2) is coaxially provided with an annular boss (22), the outer diameter of the annular boss (22) is larger than that of the ejector rod (2), and the cutter head (21) is fixed on the side surface of the annular boss (22) departing from the ejector rod (2).

7. A de-clogging device according to claim 1, characterised in that the second end of the ejector pin (2) is detachably fitted with a turning handle (23).

8. The blockage removing device according to claim 7, wherein a connecting rod (24) is coaxially arranged at the second end of the ejector rod (2), the outer diameter of the connecting rod (24) is smaller than that of the ejector rod (2), the rotating handle (23) is sleeved on the connecting rod (24), a locking bolt (25) is sleeved on the connecting rod (24), and the rotating handle (23) is clamped between the ejector rod (2) and the locking bolt (25).

9. The blockage removing device according to claim 1, wherein a cavity is formed in the housing (11), a pressure gauge (111) is arranged on the housing (11), and the pressure gauge (111) is communicated with the cavity of the housing (11).

10. The de-clogging device according to claim 9, characterized in that a blow-off valve (112) is further provided on the housing (11), and the blow-off valve (112) is communicated with the cavity of the housing (11).