CN116641704A - A wellhead sampling device for oil field and using method thereof - Google Patents

Abstract

The invention provides a wellhead sampling device for an oil field and a use method thereof, and belongs to the technical field of petroleum exploitation; the concave connecting frame is arranged on the lower side of the sampling tube; the connecting cover is provided with two, and two connecting covers are fixed connection respectively in the both sides inner wall of spill link, make second spiral transmission leaf and first spiral transmission leaf rotate in step, and the bottom fixedly connected with connecting pipe of sampling box, when the motorised valve is opened, the impurity in the sampling box can be transmitted for external connection pipeline, and the valve block can seal the impurity in the sampling box when the motorised valve is closed to this personnel is more convenient when concentrating the oil and greasy dirt sample subsequently.

Description

A wellhead sampling device for oil field and using method thereof

technical field

The invention belongs to the technical field of petroleum exploitation, and in particular relates to a wellhead sampling device for an oil field and an application method thereof.

Background technique

Petroleum is a fluid mineral buried deep in the ground. At first, people called oily liquid minerals produced in nature petroleum, combustible gas natural gas, and solid combustible fuel minerals as pitch. Petroleum is an important energy source. Compared with coal, it has energy density. Large size, convenient transportation and storage, and less pollution to the atmosphere after combustion. Fuel oil extracted from petroleum is the main fuel for various kilns in transportation tools, power station boilers, metallurgical industries, and building materials industries. In the process, a sampling device is often needed to sample and test the oil.

After searching, it is found that a Chinese patent with the authorized announcement number CN216342100U discloses a wellhead sampling device for oil production wells, which belongs to the technical field of oil production and includes a sampling box, a second flange and an oil storage tank. The top of the inner cavity of the sampling box A working box is fixedly connected, the right side of the inner chamber of the working box is fixedly connected with an electric push rod, the telescopic end of the electric push rod is fixedly connected with a rubber piston, and the left side of the inner cavity of the working box is connected with a sampling tube. When in use, through the settings of sampling box, oil storage tank, working box, electric push rod, rubber piston, sampling pipe, first flange, oil outlet pipe, oil inlet pipe and second flange, a wellhead sampling device for oil production wells is jointly constructed , wherein the main oil pipe and the oil inlet pipe can be connected through the setting of the first flange and the second flange, and then the electric push rod drives the rubber piston to pull to the right to draw the oil into the working box. At this time, the rubber piston It can slide linearly during sampling, avoiding the problem of reduced sealing performance caused by rotation and sliding in the prior art.

The above technical solution drives the rubber piston to the right through the electric push rod to draw the oil into the working box. At this time, the rubber piston can slide in a straight line when sampling, so as to avoid the problem of reduced sealing caused by rotation and sliding in the prior art, but the above-mentioned The patent still has certain disadvantages. The problem of inconvenient sampling of crude oil in the wellhead in the prior art is that the size of the existing wellhead oil pipelines is different, so the sampling pipe cannot be quickly fixed with the wellhead oil pipeline during sampling. At the same time, the existing The device cannot filter and sieve the crude oil extracted from the wellhead, resulting in inaccurate detection data of water content and oil content in the sampled crude oil.

Contents of the invention

The purpose of the present invention is to provide a wellhead sampling device for oilfields and its use method, aiming to solve the problem of inconvenient sampling of crude oil in the wellhead in the prior art, because the existing wellhead oil pipelines are of different sizes, so sampling The sampling pipe cannot be quickly fixed to the wellhead oil pipeline, and the existing device cannot filter and sieve the crude oil extracted from the wellhead, resulting in inaccurate detection data of water content and oil content in the sampled crude oil. The product of the present invention aims to solve the problem of above question.

To achieve the above object, the present invention provides the following technical solutions:

A wellhead sampling device for an oil field, comprising:

Sampling pipe, the circumferential surface of the sampling pipe is fixedly connected with two flanges, and the adjacent ends of the two flanges are fixedly connected with connecting blocks;

A concave connection frame, the concave connection is mounted on the lower side of the sampling tube;

There are two connection covers, and the two connection covers are respectively fixedly connected to the inner walls on both sides of the concave connection frame;

A connecting port, the connecting port is opened on the lower inner wall of the concave connecting frame;

The screening mechanism includes a filter screen, a sampling box, an electric valve, a first connection frame cover, a first spiral transmission leaf, a connection hole, a second connection frame cover, a second spiral transmission leaf and a sampling box , the filter screen is slidably connected to the circumferential inner wall of the sampling tube, one side end of the filter screen is fixedly connected with two second blocks, the sampling box is fixedly connected to the circumferential outer surface of the sampling tube, the electric valve Installed on the circumferential inner wall of the sampling box, the first connecting frame sleeve is fixedly connected to the circumferential inner wall of the sampling box, the first helical transmission leaf is rotatably connected to the circumferential inner wall of the sampling box, and the first helical transmission leaf rotates connected to the inner circumferential wall of the first connecting frame cover, the connecting hole is opened on the inner circumferential wall of the sampling tube, the second connecting frame cover is fixedly connected to the inner circumferential wall of the connecting hole, and the second helical transmission leaf is rotatably connected to the The circumferential inner wall of the sampling tube, the second helical transmission leaf is rotatably connected to the circumferential inner wall of the second connecting frame sleeve, one end of the second helical transmission leaf moves through the circumferential inner wall of the sampling tube and is rotatably connected to the sampling tube peripheral surface;

The transmission assembly is arranged on the front side of the sampling tube, and the transmission assembly is used to drive the first helical transmission blade. The transmission assembly includes a first connecting sleeve, a first rotating rod, a pulley, a belt and a transmission Gears, toothed belts, two first connecting sleeves, pulleys and transmission gears are provided, and the two first connecting sleeves are fixedly connected to the circumferential surface of the sampling tube, and the first rotating rod is connected in rotation On the circumferential inner walls of the two first connecting sleeves, one of the pulleys is fixedly connected to the circumferential surface of the first rotating rod, the belt is sleeved on the pulley, and the two transmission gears are respectively fixedly connected to the first rotating rod. The circumferential surface of the rod and the first helical transmission blade, the toothed belt drive is connected to the circumferential surfaces of the two transmission gears;

a transmission part, the transmission part is arranged on the front side of the sampling tube, and the transmission part is used to drive the transmission assembly; and

A fixing mechanism, the fixing mechanism includes a fixing groove, a plastic sealing ring, a semicircular snap ring, a third threaded hole, a screw rod, a tapered tough plastic ferrule and a clamping assembly, the fixing groove is opened on the inner wall of the sampling tube, and the The plastic sealing ring is fixedly connected to the circumferential inner wall of the sampling tube. There are two semicircular snap rings, both of which are slidably connected to the upper and lower inner walls of the fixing groove. The two semicircular snap rings match each other. The third threaded hole is provided with two, and the two third threaded holes are opened on the circumferential surface of the sampling tube, and the screw rod is provided with two, and the two screw rods are threadedly connected to the two third threaded holes respectively. The circumferential inner wall of the hole, the tapered tough plastic ferrule is fixedly connected to the circumferential inner wall of the sampling tube;

There are two clamping components, the clamping components are provided in two groups, and the clamping components of the two groups are all arranged in the sampling tube, and the clamping components of the two groups are used to limit the filter net.

As a preferred solution of the present invention, the transmission components include:

There are two second connecting sleeves, two second connecting sleeves are fixedly connected to the circumferential surface of the sampling tube;

a first motor, the first motor is fixedly connected to one side end of one of the second connecting sleeves;

The second rotating rod, the second rotating rod is rotatably connected to the circumferential inner walls of the two second connecting sleeves, the other pulley is fixedly connected to the circumferential surface of the second rotating rod, and the belt drive is connected to the two pulleys the circumferential surface of

a first bevel gear, the first bevel gear is fixedly connected to the circumferential surface of the second rotating rod;

The second bevel gear, one end of the second bevel gear is fixedly connected to the circumferential surface of the second helical transmission blade, and the second bevel gear meshes with the first bevel gear.

As a preferred solution of the present invention, the sampling components include:

The first threaded hole, the first threaded hole is provided with two, and the two first threaded holes are both opened on the inner wall of the sampling tube;

a second card slot, the second card slot is opened on the inner wall of the sampling tube;

an arc-shaped limiting frame, which is slidably connected to the inner circumferential wall of the sampling tube;

There are two fixed pieces, and the two fixed pieces are respectively fixedly connected to the two ends of the arc-shaped limiting frame;

There are two bolts, and the two bolts are respectively threaded in the two fixing pieces, and the two bolts are respectively threaded in the two first threaded holes.

As a preferred solution of the present invention, one set of snap-in components includes:

a first card slot, the first card slot is opened on the circumferential surface of the filter screen;

A clamping hole, the clamping hole is opened on the circumferential surface of the sampling tube;

A sealing sleeve, the sealing sleeve is fixedly connected to the circumferential inner wall of the clamping hole;

a first clamping block, the first clamping block is slidably connected to the circumferential inner wall of the clamping hole, and the first clamping block is movably clamped in the first clamping slot;

a spring, the spring is fixedly connected to the sealing sleeve and the adjacent ends of the first block;

The sampling part is arranged in the sampling pipe, and the sampling part is connected with the sampling pipe for sampling oil.

As a preferred solution of the present invention, the top ends of the two connecting covers are fixedly connected with cylinders, and the inner walls of both sides of the two connecting covers are provided with first connecting grooves. Two fixed blocks are slidably connected to the inner walls on both sides, and the telescopic ends of the two cylinders are respectively fixedly connected to the tops of the two fixed blocks, and one side end of one of the fixed blocks is fixedly connected to a second motor, one of which The connecting block is provided with a screw rod, and the screw rod is rotatably connected to the adjacent ends of the two fixed blocks, and the adjacent ends of the two fixed blocks are fixedly connected with a limit rod, and the circumferential surface of the screw rod is threaded. A nut is connected, and the nut is fixedly connected to one side end of one of the connecting blocks, and the limit rod is slidably connected to the circumferential inner wall of the other connecting block.

As a preferred solution of the present invention, the two ends of the concave connecting frame are respectively provided with two first connecting grooves, and the inner walls of the two first connecting grooves are respectively provided with a plurality of second threaded holes. Adjusting plates are slidably connected in the two first connecting grooves, two screws are threaded at the far ends of the two adjusting plates, and the four screws are respectively threaded in four second threaded holes. Inside, the bottom ends of the two adjustment plates are fixedly connected with moving wheels, the circumferential surface of the sampling tube is fixedly connected with two warning rings, and one side end of the sampling tube is fixedly connected with an intelligent controller, one of which A second connecting groove is opened on one inner wall of the first connecting groove, and the second motor is slidably connected to two inner walls of the second connecting groove.

A method for using a wellhead sampling device for an oil field, comprising the steps of:

S1. When sampling the oil in the wellhead, the personnel only need to move the concave connecting frame to the upper side of the wellhead oil pipeline, and then the staff selects the position of the wellhead, and uses the intelligent controller to start the second motor. When the second motor starts , the output shaft of the second motor drives the screw to rotate, so that the screw drives the nut on the surface to move, when the nut moves, it will drive one of the connecting blocks to move, and then one of the connecting blocks will drive the other connecting block to slide on the surface of the limit rod , so that the two flanges connected with the sampling pipe can stably support the sampling pipe until the sampling pipe moves to the upper side of the wellhead oil pipeline, and then the intelligent controller starts the two cylinders, so that the telescopic ends of the two cylinders drive the two The fixed block is lowered until the sampling pipe sleeve is set on the surface of the oil pipeline, and then when the external oil pipeline is clamped, the two screw rods are rotated respectively, so that the two screw rods are rotated in the two third threaded holes respectively, until the two screw rods Clamp the adjacent oil pipelines, and then start the first motor through the intelligent controller. When the first motor is started, it will drive the second rotating rod to rotate, and when the second rotating rod rotates, it will drive the transmission assembly and the transmission parts. The components are running, and then the transmission components and components of the transmission components will drive the second helical transmission blade and the first helical transmission blade to rotate synchronously to transmit the oil to the sampling box, and the impurities in the sampling box will be transmitted to the external connecting pipeline. Allow personnel to quickly remove oil and impurities through external connecting pipes for rapid sampling;

S2. When the second spiral transmission blade rotates, it will scrape off the oily impurities on the inner wall of the filter and transmit them to the connection hole. The oily impurities will continue to be transmitted to the sampling box through the connection hole, and then the first The spiral transmission leaf will transfer the oil and impurities to the sampling box, the electric valve in the sampling box will open, cooperate with the first spiral transmission leaf to transmit the oil to the external connecting pipeline, and the personnel will quickly remove the oil through the external connecting pipeline Impurities for rapid sampling.

Compared with prior art, the beneficial effect of the present invention is:

1. When sampling the oil in the wellhead, the personnel only need to move the concave connecting frame to the upper side of the wellhead oil pipeline, and then select the position of the wellhead, and use the intelligent controller to start the second motor. When the second motor starts , the output shaft of the second motor drives the screw to rotate, so that the screw drives the nut on the surface to move, when the nut moves, it will drive one of the connecting blocks to move, and then when one of the connecting blocks moves, it will drive the two flanges to move synchronously, and then The two flanges drive the sampling pipe and another connecting block to move, and the other connecting block slides on the surface of the limit rod until the sampling pipe moves to the upper side of the wellhead oil pipeline, and then the intelligent controller starts two cylinders to make the two The telescopic end of the cylinder drives the two fixed blocks down until the sampling pipe sleeve is set on the surface of the oil pipeline, and then when the external oil pipeline is clamped, the two screws are rotated separately so that the two screws are respectively in the two third threaded holes. Rotate inward until the two screw rods clamp the adjacent oil pipeline, and then start the first motor through the intelligent controller. When the first motor is started, it will drive the second rotating rod to rotate, and when the second rotating rod rotates, it will drive the transmission assembly It runs with the parts of the transmission part, and then the transmission assembly and the parts of the transmission part will drive the second helical transmission leaf and the first helical transmission leaf to rotate synchronously to transmit the oil to the sampling box, and then the impurities in the sampling box will be It is transmitted to the external connection pipeline, so that the personnel can quickly remove the oil and impurities through the external connection pipeline for rapid sampling.

2. When the second spiral transmission leaf rotates, it will scrape off the oily impurities on the inner wall of the filter and transmit them to the connecting hole. The oily impurities will continue to be transmitted to the sampling box through the connecting hole, and then the first The spiral transmission leaf will transfer the oil and impurities to the sampling box, the electric valve in the sampling box will open, cooperate with the first spiral transmission leaf to transmit the oil to the external connecting pipeline, and the personnel will quickly remove the oil through the external connecting pipeline Impurities for rapid sampling.

3. The second card slot is ring-shaped and set on the inner wall of the sampling tube. The second card slot is used to accommodate the collection connection network, so that the collection connection network is more stable when sampling petroleum impurities. The two fixed pieces are respectively fixed on the arc-shaped limit At both ends of the position frame, the two arc-shaped limit frames have their own connection ports, through which the circulating petroleum impurities will adhere to the surface of the collection connection network in the second card slot, making sampling petroleum impurities more convenient.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the description, and are used together with the embodiments of the present invention to explain the present invention, and do not constitute a limitation to the present invention. In the attached picture:

Fig. 1 is a perspective view of the present invention;

Fig. 2 is a partial enlarged view of the transmission assembly in the present invention;

Fig. 3 is the partial enlarged view of sampling part among the present invention;

Fig. 4 is a disassembled perspective view of partial components of the present invention;

Fig. 5 is a partial enlarged view of transmission parts in the present invention;

Fig. 6 is a vertical sectional perspective view 1 of the present invention;

Figure 7 is a partial enlarged view of the fixing mechanism in the present invention;

Fig. 8 is a partial enlarged view of the screening mechanism in the present invention;

Fig. 9 is a perspective view of the horizontal section of the present invention;

Fig. 10 is a partially enlarged view of the clamping assembly in the present invention;

Fig. 11 is a second vertical sectional perspective view of the present invention.

In the figure: 1, sampling tube; 2, transmission assembly; 201, first connecting sleeve; 202, toothed belt; 203, first rotating rod; 204, pulley; 205, belt; 206, transmission gear; 3, transmission component ; 301, the first motor; 302, the second connecting sleeve; 303, the first bevel gear; 304, the second bevel gear; 305, the second rotating rod; 4, the fixing mechanism; 401, the screw rod; 402, the first Three threaded holes; 403, plastic sealing ring; 404, semicircular snap ring; 405, tapered tough plastic ferrule; 406, fixing groove; 5, sieving mechanism; 501, sampling box; 502, electric valve; 503, first Spiral transmission leaf; 504, first connection frame cover; 505, second connection frame cover; 506, second spiral transmission leaf; 507, filter screen; 6, second motor; 7, clip assembly; 701, seal Sleeve; 702, first slot; 703, first block; 704, hole; 705, spring; 706, second block; 8, sampling part; 801, fixed plate; 802, bolt; 803, the first Two card slots; 804, arc-shaped limit frame; 9, connecting block; 10, flange plate; 11, connecting cover; 12, cylinder; 13, adjusting plate; 14, intelligent controller; 15, moving wheel; 16, 17, warning ring; 18, concave connection frame; 19, connection port; 20, nut; 21, second connection groove; 22, fixed block.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Example 1

Please refer to Fig. 1-Fig. 11, the present invention provides following technical scheme:

A wellhead sampling device for an oil field, comprising:

Sampling tube 1, the circumferential surface of sampling tube 1 is fixedly connected with two flanges 10, and the adjacent ends of the two flanges 10 are fixedly connected with connecting blocks 9;

A concave connection frame 18, the concave connection frame 18 is located on the lower side of the sampling tube 1;

Connecting cover 11, two connecting covers 11 are provided, and the two connecting covers 11 are respectively fixedly connected to the inner walls of both sides of the concave connecting frame 18;

Connection port 19, the connection port 19 is set on the lower inner wall of the concave connection frame 18;

The screening mechanism 5 includes a filter screen 507, a sampling box 501, an electric valve 502, a first connection frame cover 504, a first spiral transmission leaf 503, a connection hole, a second connection frame cover 505, a second spiral Type transmission leaf 506 and sampling box 501, the filter screen 507 is slidably connected to the circumferential inner wall of the sampling tube 1, and one side end of the filter screen 507 is fixedly connected with two second clamping blocks 706, and the sampling box 501 is fixedly connected to the side of the sampling tube 1 On the outer surface of the circumference, the electric valve 502 is installed on the inner circumference wall of the sampling box 501, the first connection frame cover 504 is fixedly connected to the inner circumference wall of the sampling box 501, the first spiral transmission blade 503 is rotatably connected to the inner circumference wall of the sampling box 501, and the second A spiral transmission blade 503 is rotatably connected to the circumferential inner wall of the first connection frame cover 504, the connection hole is opened on the circumferential inner wall of the sampling tube 1, the second connection frame cover 505 is fixedly connected to the circumferential inner wall of the connection hole, and the second spiral transmission The blade 506 is rotatably connected to the inner circumferential wall of the sampling tube 1, and the second helical transport leaf 506 is rotatably connected to the inner circumferential wall of the second connecting frame sleeve 505, and one end of the second helical transport vane 506 moves through the inner circumferential wall of the sampling tube 1 and Rotationally connected to the circumferential surface of the sampling tube 1;

The transmission assembly 2, the transmission assembly 2 is arranged on the front side of the sampling tube 1, the transmission assembly 2 is used to drive the first helical transmission blade 503, the transmission assembly 2 includes the first connecting sleeve 201, the first rotating rod 203, the pulley 204, Belt 205, transmission gear 206, toothed belt 202, the first connecting sleeve 201, belt pulley 204 and transmission gear 206 are all provided with two, and the two first connecting sleeves 201 are all fixedly connected to the circumferential surface of sampling tube 1, the second A rotating rod 203 is rotatably connected to the circumferential inner walls of the two first connecting sleeves 201, one of the pulleys 204 is fixedly connected to the circumferential surface of the first rotating rod 203, the belt 205 is sleeved on the pulley 204, and the two transmission gears 206 are respectively Fixedly connected to the peripheral surface of the first rotating rod 203 and the first helical transmission blade 503, the toothed belt 202 is connected to the peripheral surface of the two transmission gears 206;

The transmission part 3, the transmission part 3 is arranged on the front side of the sampling tube 1, the transmission part 3 is used to drive the transmission assembly 2; Three threaded holes 402, screw rod 401, conical tough plastic ferrule 405 and clamping assembly 7, fixing groove 406 is opened on the inner circumferential wall of sampling tube 1, plastic sealing ring 403 is fixedly connected to the inner circumferential wall of sampling tube 1, semicircular snap ring 404 is provided with two, and the two semicircular snap rings 404 are all slidably connected to the upper and lower inner walls of the fixing groove 406, and the two semicircular snap rings 404 are matched with each other, and the third threaded holes 402 are provided with two, and the two third threaded holes 402 are both Set on the circumferential surface of the sampling tube 1, there are two screw rods 401, the two screw rods 401 are threadedly connected to the circumferential inner walls of the two third threaded holes 402, and the tapered tough plastic ferrule 405 is fixedly connected to the circumference of the sampling tube 1 inner wall;

Clamping assembly 7, two sets of clamping assemblies 7 are provided, both sets of clamping assemblies 7 are set in the sampling tube 1, and two sets of clamping assemblies 7 are used to limit the filter 507.

In a specific embodiment of the present invention, the sampling tube 1 itself is an L-shaped arc tube, the second block 706 is fixed on one side of the filter screen 507 by spot welding, and the telescopic ends of the two cylinders 12 themselves and the two The tops of the two connecting covers 11 are connected, and the expansion end of the cylinder 12 itself will simultaneously drive the two first connecting grooves 16 to slide on the inner walls of both sides of the two connecting covers 11, and the two connecting covers 11 have four adjacent ends. One connecting port, the four communicating ports are respectively used to accommodate the limit rod and the screw rod, one side end of one connecting cover 11 is provided with a second connecting groove 21, one side end of one of the first connecting groove 16 is fixedly connected with The second motor 6, the output shaft of the second motor 6 is fixed on the surface of the screw mandrel, so that when the second motor 6 starts, the output shaft of the second motor 6 itself will drive the screw mandrel to rotate, the first motor 301 and the second motor 6 Electrically connected with an external power supply, the intelligent controller 14 is used to start and close the first motor 301 and the second motor 6, the bottom end of the sampling box 501 is fixedly connected with a connecting pipe, and the connecting port 19 matches the sampling pipe 1, It will make the sampling tube 1 more stable when moving. Two sets of clamping components 7 are distributed on both sides of the filter screen 507 respectively. The oil and the impurities in the oil will be screened out, the second spiral transmission blade 506 matches the inner wall of the filter screen 507, and the second spiral transmission blade 506 will clean up the impurities filtered out by the inner wall of the filter screen 507 , the concave connecting frame 18 is in a concave shape, the sampling box 501 itself has a connecting hole, the second connecting frame cover 505 matches the first connecting frame cover 504, and the connecting hole communicates with the sampling box 501.

Please refer to Fig. 1-Fig. 6 for details, transmission part 3 includes:

The second connecting sleeve 302, the second connecting sleeve 302 is provided with two, and the two second connecting sleeves 302 are fixedly connected to the circumferential surface of the sampling tube 1;

The first motor 301, the first motor 301 is fixedly connected to one side end of one of the second connecting sleeves 302;

The second rotating rod 305, the second rotating rod 305 is rotatably connected to the circumferential inner walls of the two second connecting sleeves 302, the other pulley 204 is fixedly connected to the circumferential surface of the second rotating rod 305, and the belt 205 is drivingly connected to the two pulleys Circumferential surface of 204;

The first bevel gear 303, the first bevel gear 303 is fixedly connected to the circumferential surface of the second rotating rod 305;

The second bevel gear 304 , one end of the second bevel gear 304 is fixedly connected to the circumferential surface of the second helical transmission blade 506 , and the second bevel gear 304 meshes with the first bevel gear 303 .

In this embodiment: the output shaft of the first motor 301 is fixed on the circumferential surface of the second rotating rod 305, the first bevel gear 303 and the second bevel gear 304 are meshed, and the electric valve 502 is electrically connected with the intelligent controller 14 , the electric valve 502 is used to seal the impurities transported by the first helical conveying leaf 503 and the second helical conveying leaf 506 in the sampling box 501, the bottom end of the sampling box 501 is fixed with a connecting pipe, when the electric valve 502 is opened , the valve plate of the electric valve 502 will rotate and open in the sampling box 501, and then the impurities in the sampling box 501 will be transmitted to the external connection pipeline, which is more convenient for sampling impurities through the external connection pipeline.

Specifically please refer to Fig. 1-Fig. 7, sampling part 8 comprises:

The first threaded hole, the first threaded hole is provided with two, and the two first threaded holes are all opened on the circumferential inner wall of the sampling tube 1;

The second card slot 803, the second card slot 803 is set on the inner wall of the sampling tube 1;

An arc-shaped limiting frame 804, which is slidably connected to the circumferential inner wall of the sampling tube 1;

There are two fixed pieces 801, and the two fixed pieces 801 are respectively fixedly connected to the two ends of the arc-shaped limiting frame 804;

There are two bolts 802, and the two bolts 802 are respectively threaded into the two fixing pieces 801, and the two bolts 802 are respectively threaded into the two first threaded holes.

In this embodiment: the second spiral transmission blade 506 will scrape off the oily impurities on the inner wall of the filter screen 507 when rotating, and transmit them to the connection hole, where the oily impurities will continue to be transmitted to the sampling box 501 through the connection hole, and then The first helical transmission blade 503 inside the sampling box 501 will transmit the oily impurities to the sampling box 501, the valve plate of the electric valve 502 in the sampling box 501 will open, and cooperate with the first helical transmission blade 503 to transmit the oily dirt to the external connection In the pipeline, the personnel will quickly take out the oil and impurities through the external connection pipeline, so as to perform rapid sampling. The two semicircular snap rings 404 in the fixing mechanism 4 are engaged with each other, and the two screw rods 401 are respectively rotated on the opposite sides of the two semicircular snap rings 404. Away from the end, when clamping and limiting the external oil pipeline, the personnel only need to rotate the two screw rods 401 respectively, so that the two screw rods 401 thread respectively extend into the third threaded hole 402 and drive the two semicircular snap rings 404 to move, The two semicircular snap rings 404 are close to each other to clamp the oil pipeline, the first rotating rod 203 rotates on the inner wall of the circumference of the two first connecting sleeves 201, and the two first connecting sleeves 201 are used to stably support the first rotating rod. Rod 203 makes the first rotating rod 203 more stable when rotating. When the first rotating rod 203 rotates, it will drive the transmission gear 206 on the surface to rotate, and then one of the transmission gears 206 will engage the toothed belt 202 on the transmission surface to rotate, and the toothed belt 202 will rotate. It will synchronously mesh and rotate to drive another transmission gear 206 to rotate, so that the other transmission gear 206 will synchronously drive the first helical transmission blade 503 to rotate, so that the first helical transmission blade 503 will rotate to transmit the oily impurities inside the sampling box 501 , the two fixed pieces 801 are respectively fixed on the two ends of the arc-shaped limiting frame 804, and the two arc-shaped limiting frames 804 themselves have connection ports, which are convenient for the oil circulation to be attached to the surface of the collecting connection net, and the two first connecting When the height of the groove 16 itself is adjusted, the personnel only need to start the two cylinders 12 through the intelligent controller 14, and the telescopic ends of the two cylinders 12 themselves will drive the two first connecting grooves 16 to descend, and the two first connecting grooves When 16 descends, it will synchronously drive the screw mandrel and the limit rod connected near the end to descend, so that the nut 20 on the surface of the screw mandrel drives the sampling tube 1 to continue to descend through the connection block 9 .

For details, please refer to Fig. 1-Fig. 3, wherein a set of clamping components 7 includes:

The first card slot 702, the first card slot 702 is opened on the circumferential surface of the filter screen 507;

The clamping hole 704, the clamping hole 704 is opened on the circumferential surface of the sampling tube 1;

A sealing sleeve 701, the sealing sleeve 701 is fixedly connected to the circumferential inner wall of the locking hole 704;

The first locking block 703, the first locking block 703 is slidably connected to the circumferential inner wall of the locking hole 704, and the first locking block 703 is movably engaged in the first locking slot 702;

A spring 705, the spring 705 is fixedly connected to the sealing sleeve 701 and the adjacent end of the first block 703;

The sampling part 8 is arranged in the sampling pipe 1, and the sampling part 8 and the sampling pipe 1 are connected for sampling oil.

In this embodiment: the components in the two sets of clamping assemblies 7 are distributed on the left and right sides respectively, so that it is more convenient for the components in the clamping assemblies 7 to fix the filter screen 507. The clamping holes 704 and the sealing sleeve 701 Matching, the elasticity of the spring 705 itself will continue to push the first block 703 tightly, so that the first block 703 is firmly limited in the first slot 702, so that the filter 507 stays stably in the sampling tube 1 and is not easy to loosen , The filter screen 507 is used to filter the impurities and oil stains in the oil.

Please refer to Fig. 5-Fig. 11 for details, the tops of the two connecting covers 11 are fixedly connected with the cylinder 12, the inner walls of both sides of the two connecting covers 11 are provided with first connecting grooves 16, and the two first connecting grooves 16 Two fixed blocks 22 are slidably connected to the inner walls on both sides, and the telescopic ends of the two cylinders 12 are respectively fixedly connected to the tops of the two fixed blocks 22, and one side end of one of the fixed blocks 22 is fixedly connected to the second motor 6, wherein A connecting block 9 is provided with a screw rod, which is rotatably connected to the adjacent ends of the two fixed blocks 22, and the adjacent ends of the two fixed blocks 22 are fixedly connected to the limit rod, and the circumferential surface of the screw rod is threadedly connected with a nut 20 , the nut 20 is fixedly connected to one side end of one of the connecting blocks 9 , and the limit rod is slidably connected to the circumferential inner wall of the other connecting block 9 .

In this embodiment, the second helical transmission blade 506 is then used for transmission, and the cooperation of the limit rod and the screw rod will stably support the two connecting blocks 9, so that the two sides of the sampling tube 1 can stay stably on the screw rod and the limit rod. Between, the two first connecting grooves 16 are used to accommodate two adjusting plates 13 respectively, so that the two adjusting plates 13 can freely slide in the two first connecting grooves 16, and the two adjusting plates 13 themselves are used to adjust the four Four moving wheels 15 are supported, and the four moving wheels 15 themselves are used to increase the mobility of the two adjusting plates 13 themselves.

Please refer to Fig. 5-Fig. 11 for details, two first connecting grooves 16 are respectively opened at both ends of the concave connecting frame 18, and a plurality of second threaded holes are provided on the inner walls of the two first connecting grooves 16 away from each other. Adjusting plates 13 are slidably connected in the two first connecting grooves 16, and two screws are threaded at the far ends of the two adjusting plates 13, and four screws are respectively threaded in four of the second threaded holes. The bottom ends of each adjustment plate 13 are fixedly connected with moving wheels 15, the circumferential surface of the sampling tube 1 is fixedly connected with two warning rings 17, and one side end of the sampling tube 1 is fixedly connected with an intelligent controller 14, one of which is connected to the first A second connecting groove 21 is opened on one side of the inner wall of the groove 16 , and the second motor 6 is slidably connected to two inner walls of the second connecting groove 21 .

In this embodiment, a plurality of second threaded holes are used to select the heights of the two adjustment plates 13 according to the needs of personnel, so that different heights of the adjustment plates 13 can be used, and the two warning rings 17 are made of reflective plastic materials , the two warning circles 17 are used to warn outsiders, and the intelligent controller 14 is used to start and stop the cylinder 12, the first motor 301, the electric valve 502 and the second motor 6.

The working principle and application process of the present invention: when sampling the oil in the wellhead, the personnel only need to move the concave connecting frame 18 to the upper side of the wellhead oil pipeline, and then the staff selects the position of the wellhead, and uses the intelligent controller 14 to start The second motor 6, when the second motor 6 starts, the output shaft of the second motor 6 drives the screw mandrel to rotate, so that the screw mandrel drives the nut 20 on the surface to move, and when the nut 20 moves, it will drive one of the connecting blocks 9 to move, and then one of them When the connecting block 9 moves, it will drive the two flanges 10 to move synchronously, and then the two flanges 10 will drive the sampling tube 1 and the other connecting block 9 to move, and the other connecting block 9 will slide on the surface of the limit rod until the sampling The pipe 1 moves to the upper side of the wellhead oil pipeline, and then the intelligent controller 14 starts the two cylinders 12, so that the telescopic ends of the two cylinders 12 drive the two fixed blocks 22 down until the sampling pipe 1 is set on the surface of the oil pipeline, and then To clamp the external oil pipeline, rotate the two screw rods 401 respectively, so that the two screw rods 401 rotate in the two third threaded holes 402 respectively until the two screw rods 401 clamp the adjacent oil pipeline, and then through intelligent control The device 14 starts the first motor 301. When the first motor 301 starts, it will drive the second rotating rod 305 to rotate. When the second rotating rod 305 rotates, it will drive one of the belt pulleys 204 and the first bevel gear 303 on the surface to rotate. A bevel gear 303 will drive the second bevel gear 304 to rotate synchronously, and one of the pulleys 204 will drive the belt 205 to rotate synchronously. When the belt 205 rotates, it will drive the other pulley 204 to rotate, and then the other pulley 204 will drive the first surface A rotating rod 203, and then the second bevel gear 304 will drive the transmission gear 206 on the surface to rotate, and then one of the transmission gears 206 will engage the toothed belt 202 on the transmission surface to rotate, and the toothed belt 202 will synchronously mesh and rotate to drive the other One transmission gear 206 rotates to make the other transmission gear 206 synchronously drive the first helical transmission blade 503 to rotate. Due to the rotation of the first helical transmission blade 503, the oily impurities inside the sampling box 501 are transmitted to the connecting pipe, and the transmission assembly 2 The components of the transmission part 3 will drive the second helical transmission vane 506 and the first helical transmission vane 503 to rotate synchronously. When the electric valve 502 is opened, the valve plate of the electric valve 502 in the sampling box 501 is opened to cooperate with the first The spiral transmission blade 503 will transmit the oil to the external connecting pipeline, so that personnel can quickly remove the oil and impurities through the external connecting pipeline for rapid sampling.

Finally, it should be noted that: the above is only a preferred embodiment of the present invention, and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still The technical solutions recorded in the foregoing embodiments may be modified, or some technical features thereof may be equivalently replaced. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (7)

1. A wellhead sampling device for an oil field, characterized in that it comprises: A sampling tube (1), the circumferential surface of the sampling tube (1) is fixedly connected with two flanges (10), and the adjacent ends of the two flanges (10) are fixedly connected with a connecting block (9 ); A concave connecting frame (18), the concave connecting frame (18) is arranged on the lower side of the sampling tube (1); A connecting cover (11), the connecting cover (11) is provided with two, and the two connecting covers (11) are respectively fixedly connected to the inner walls on both sides of the concave connecting frame (18); A connection port (19), the connection port (19) is opened on the lower inner wall of the concave connection frame (18); A screening mechanism (5), the screening mechanism (5) includes a filter screen (507), a sampling box (501), an electric valve (502), a first connection frame sleeve (504), a first spiral transmission leaf ( 503), connection hole, second connection frame cover (505), second spiral transmission leaf (506) and sampling box (501), the filter screen (507) is slidably connected to the circumferential inner wall of the sampling tube (1), One side end of the filter screen (507) is fixedly connected with two second blocks (706), the sampling box (501) is fixedly connected to the outer peripheral surface of the sampling tube (1), and the electric valve (502 ) is installed on the circumferential inner wall of the sampling box (501), the first connecting frame sleeve (504) is fixedly connected to the circumferential inner wall of the sampling box (501), and the first spiral transmission leaf (503) is rotatably connected to the sampling box (501), the first helical transmission leaf (503) is rotatably connected to the circumferential inner wall of the first connecting frame sleeve (504), the connecting hole is opened on the circumferential inner wall of the sampling tube (1), and the The second connection frame sleeve (505) is fixedly connected to the inner circumferential wall of the connection hole, the second helical transmission leaf (506) is rotatably connected to the inner circumferential wall of the sampling tube (1), and the second helical transmission leaf (506) ) is rotatably connected to the circumferential inner wall of the second connecting frame sleeve (505), and one end of the second helical transmission leaf (506) moves through the circumferential inner wall of the sampling tube (1) and is rotatably connected to the circumferential inner wall of the sampling tube (1) surface; A transmission assembly (2), the transmission assembly (2) is arranged on the front side of the sampling tube (1), the transmission assembly (2) is used to drive the first helical transmission blade (503), the transmission assembly (2 ) includes a first connecting sleeve (201), a first rotating rod (203), a pulley (204), a belt (205), a transmission gear (206), a toothed belt (202), and the first connecting sleeve (201 ), a pulley (204) and a transmission gear (206) are provided with two, and the two first connecting sleeves (201) are fixedly connected to the circumferential surface of the sampling tube (1), and the first rotating rod ( 203) is rotatably connected to the circumferential inner walls of the two first connecting sleeves (201), one of the pulleys (204) is fixedly connected to the circumferential surface of the first rotating rod (203), and the belt (205) is sheathed on On the pulley (204), the two transmission gears (206) are respectively fixedly connected to the circumferential surface of the first rotary rod (203) and the first helical transmission blade (503), and the toothed belt (202) is connected to the the circumferential surfaces of the two transmission gears (206); a transmission part (3), the transmission part (3) is arranged on the front side of the sampling tube (1), and the transmission part (3) is used to drive the transmission assembly (2); and The fixing mechanism (4), the fixing mechanism (4) includes a fixing groove (406), a plastic sealing ring (403), a semicircular snap ring (404), a third threaded hole (402), a screw rod (401), a tapered toughness The plastic ferrule (405) and the clamping assembly (7), the fixing groove (406) is opened on the inner wall of the sampling tube (1), and the plastic sealing ring (403) is fixedly connected to the circumference of the sampling tube (1) On the inner wall, there are two semicircular snap rings (404), both of which are slidably connected to the upper and lower inner walls of the fixing groove (406), and the two semicircular snap rings (404) match each other , the third threaded hole (402) is provided with two, and the two third threaded holes (402) are provided on the circumferential surface of the sampling tube (1), and the screw (401) is provided with two, two Each of the screws (401) is threadedly connected to the circumferential inner wall of the two third threaded holes (402), and the tapered tough plastic ferrule (405) is fixedly connected to the circumferential inner wall of the sampling tube (1); The clamping component (7), the clamping component (7) is provided with two groups, the clamping components (7) of the two groups are all arranged in the sampling tube (1), and the clamping component (7) of the two groups For limit filter (507). 2. A wellhead sampling device for oilfields according to claim 1, characterized in that: the transmission part (3) includes; The second connecting sleeve (302), the second connecting sleeve (302) is provided with two, and the two second connecting sleeves (302) are fixedly connected to the circumferential surface of the sampling tube (1); A first motor (301), the first motor (301) is fixedly connected to one side end of one of the second connecting sleeves (302); The second rotating rod (305), the second rotating rod (305) is rotatably connected to the circumferential inner walls of the two second connecting sleeves (302), and the other pulley (204) is fixedly connected to the second rotating rod ( 305), the belt (205) is drive-connected to the circumferential surfaces of the two pulleys (204); a first bevel gear (303), the first bevel gear (303) is fixedly connected to the circumferential surface of the second rotating rod (305); The second bevel gear (304), one end of the second bevel gear (304) is fixedly connected to the circumferential surface of the second helical transmission blade (506), the second bevel gear (304) and the first The bevel gear (303) is meshed. 3. A wellhead sampling device for oilfields according to claim 2, characterized in that: one of the clamping assemblies (7) includes: The first card slot (702), the first card slot (702) is opened on the circumferential surface of the filter screen (507); A clamping hole (704), the clamping hole (704) is opened on the circumferential surface of the sampling tube (1); A sealing sleeve (701), the sealing sleeve (701) is fixedly connected to the circumferential inner wall of the clamping hole (704); The first locking block (703), the first locking block (703) is slidably connected to the circumferential inner wall of the locking hole (704), and the first locking block (703) is movably engaged in the first locking slot (702) ; a spring (705), the spring (705) is fixedly connected to the sealing sleeve (701) and the adjacent ends of the first block (703); A sampling part (8), the sampling part (8) is arranged in the sampling pipe (1), and the sampling part (8) and the sampling pipe (1) are connected for sampling oil. 4. A wellhead sampling device for oilfield according to claim 3, characterized in that: the sampling part (8) comprises: The first threaded hole, two first threaded holes are provided, and the two first threaded holes are both opened on the inner wall of the sampling pipe (1); A second clamping slot (803), the second clamping slot (803) is set on the inner circumferential wall of the sampling tube (1); An arc-shaped limiting frame (804), the arc-shaped limiting frame (804) is slidably connected to the circumferential inner wall of the sampling tube (1); A fixed piece (801), two fixed pieces (801) are provided, and the two fixed pieces (801) are respectively fixedly connected to both ends of the arc-shaped limiting frame (804); Bolts (802), two bolts (802) are provided, the two bolts (802) are respectively threaded in the two fixing pieces (801), and the two bolts (802) are respectively threaded in the two in the first threaded hole. 5. A wellhead sampling device for oilfields according to claim 4, characterized in that: the top ends of the two connecting covers (11) are fixedly connected with cylinders (12), and the two connecting covers (11) The inner walls on both sides of the two first connecting grooves (16) are provided with first connecting grooves (16), and the inner walls on both sides of the two first connecting grooves (16) are slidingly connected with two fixing blocks (22), and the two cylinders (12) The telescopic ends of the two fixed blocks (22) are fixedly connected to the tops of the two fixed blocks (22), and one side end of one of the fixed blocks (22) is fixedly connected with the second motor (6), and one of the connected blocks (9) A screw rod is provided, and the screw rod is rotatably connected to the adjacent ends of the two fixed blocks (22), and the adjacent ends of the two fixed blocks (22) are fixedly connected to the limit rod, and the circumferential surface of the screw rod A nut (20) is threadedly connected, and the nut (20) is fixedly connected to one side end of one of the connecting blocks (9), and the limit rod is slidably connected to the circumferential inner wall of the other connecting block (9). 6. A wellhead sampling device for oilfields according to claim 5, characterized in that two first connecting grooves (16) are opened at both ends of the concave connecting frame (18), and the two A plurality of second threaded holes are provided on the inner wall far away from the first connection groove (16), and an adjustment plate (13) is slidably connected in the two first connection grooves (16), and the two adjustment plates ( 13) Two screws are threaded at the remote ends, and the four screws are respectively threaded in four of the second threaded holes, and the bottom ends of the two adjustment plates (13) are fixedly connected with moving wheels (15), the circumferential surface of the sampling tube (1) is fixedly connected with two warning rings (17), and one side end of the sampling tube (1) is fixedly connected with an intelligent controller (14), one of which A second connecting groove (21) is opened on one inner wall of the first connecting groove (16), and the second motor (6) is slidably connected to two inner walls of the second connecting groove (21). 7. the using method of a kind of oilfield wellhead sampling device according to claim 6, is characterized in that, comprises the steps: S1. When sampling the oil in the wellhead, the personnel only need to move the concave connecting frame (18) to the upper side of the wellhead oil pipeline, and then the staff selects the position of the wellhead, and uses the intelligent controller (14) to start the second motor (6), the output shaft of the second motor (6) drives the screw to rotate, so that the screw drives the nut (20) on the surface to move, and when the nut (20) moves, it will drive one of the connecting blocks (9) to move, and then one of the When the connecting block (9) moves, it will drive the two flanges (10) to move synchronously, and then the two flanges (10) will drive the sampling tube (1) and another connecting block (9) to move. At this time, the other connecting The block (9) slides on the surface of the limit rod until the sampling pipe (1) moves to the upper side of the wellhead oil pipeline, and then the intelligent controller (14) starts the two cylinders (12) to make the two cylinders (12) stretch end drives the two fixed blocks (22) down until the sampling tube (1) is sleeved on the surface of the oil pipeline, and then when the external oil pipeline is clamped, the personnel only need to rotate the two screws (401) respectively to make the two The screw (401) rotates in the two third threaded holes (402) until the two screws (401) clamp the adjacent oil pipeline, and then the first motor (301) is started by the intelligent controller (14), When the first motor (301) starts, it will drive the second rotating rod (305) to rotate, and when the second rotating rod (305) rotates, it will drive the parts of the transmission assembly (2) and the transmission part (3) to run, and then the transmission assembly (2) and the parts of the transmission part (3) will drive the second helical transmission vane (506) and the first helical transmission vane (503) to rotate synchronously to transmit the oil to the sampling box (501), and then the sampling box The impurities in (501) will be transferred to the external connecting pipeline, so that the personnel can quickly remove the oily impurities through the external connecting pipeline for rapid sampling; S2. The second spiral transmission blade (506) will scrape off the oily impurities on the inner wall of the filter screen (507) when rotating, and transmit them to the connection hole, and the oily impurities will continue to be transmitted to the sampling box (501) through the connection hole Then the first spiral transmission leaf (503) inside the sampling box (501) will transfer the oily impurities into the sampling box (501), and the valve plate of the electric valve (502) in the sampling box (501) will open to cooperate with the first A spiral transmission vane (503) transmits the oil to the external connecting pipeline, and personnel can quickly remove the oil and impurities through the external connecting pipeline for rapid sampling.