CN217735447U - Intubation type sampling gate - Google Patents

Abstract

The utility model discloses an insertion tube type sampling gate used for an oil production well in the petroleum industry, which comprises a sampling gate body, wherein the end part of the outlet end of a sampling insertion tube is provided with a sealing boss; the sampling insertion pipe is arranged in the internal and external thread adapter and then is respectively in threaded connection with the sampling gate connector and the sampling gate body in the wellhead sampling pipeline, and the inlet end of the connected sampling insertion pipe is positioned in the center of the sampling pipeline. Use the utility model discloses reform transform the sample gate of existing usefulness, need not to fire at the well head, need not to use the operating personnel of special instrument, equipment and special work kind, do not have the safety risk, reduced the equipment cost for the transformation by a wide margin, avoided the safety risk, shortened the time of reforming transform construction by a wide margin, effectively improved the operation time rate of oil well.

Description

Intubation type sampling gate

Technical Field

The utility model relates to a sampling device of oil industry oil recovery well especially relates to an intubation type sampling gate.

Background

The method is used for sampling oil samples for oil extraction wells in the petroleum industry, is the most basic management work in daily management of the oil wells, obtains physical property parameters of oil well output liquid through test analysis of the sampled oil samples, and provides a basis for dynamic analysis of oil well production and improvement of oil well management measures.

The sampling port in the oil well production process is required to be arranged on a vertical pipe according to the regulations, the sampling port is required to be vertical to the mixed liquid pipeline, the taken oil sample is required to be liquid from the central position of the mixed liquid pipeline, and the liquid can actually reflect the liquid production state of the oil well.

However, in most oil wells in production sites, a sampling gate connector is welded outside a mixed liquid pipeline, a sampling gate is connected outside the sampling gate connector, and the sampling gate connected outside the sampling gate connector is used for directly discharging and sampling oil, so that the oil sample is obtained in an irregular manner, and the accuracy of analyzing the physical parameters of the produced liquid of the oil well is seriously influenced. For most oil wells in the oil field at present, if an oil sample at the central position of a mixing pipeline needs to be obtained, the existing sampling gate needs to be modified.

The current sampling gate is various and is not single in function, such as the following patent technologies:

1. application No.: 201720521087.6 discloses an oil well oil gas sampling device

Above-mentioned utility model in the normal production process of oil well, can separate the gas and the liquid of oil well production liquid from the device, improve the precision of the gas sample and the oil sample of getting, improve oil well analysis and production management level. The device comprises a body, a gas sampling tube, a gas sampling gate, an oil sample sampling tube and an oil sample sampling gate, wherein the gas sampling tube and the gas sampling gate are arranged on the upper part of the body, and the oil sample sampling tube and the oil sample sampling gate are arranged on the lower part of the body. The upper part in the cavity of the body is provided with a clapboard with holes, the lower part is provided with an injector head, a front baffle and a rear baffle, and the front baffle and the rear baffle are both provided with overflowing holes; the two ends of the body are respectively provided with a front joint and a rear joint and are respectively connected with a production gate and a conveying pipeline of a well head through the front joint and the rear joint, and the gas sampling tube is connected with a well head trunk line heating furnace or a conveying pipeline through a pipeline.

After the device is installed at the wellhead of the oil production well, gas samples and oil samples can be conveniently taken.

2. Application No.: 201420718990.8 discloses a sampling gate

The utility model comprises a body, the body comprises a first end, a second end, a first through hole and a second through hole, the first end is connected with the oil outlet; the first through hole penetrates through the first end and the second end; a second through hole is formed in the hole wall of the first through hole; the gate cover is connected with the second end and covers the first through hole; a third through hole is formed in the gate cover, and the center line of the third through hole is the same as that of the first through hole; a first thread structure is arranged on the inner wall of the third through hole; the sampling valve comprises a gate plate and a lead screw; the gate plate is positioned in the first through hole; the screw rod penetrates through the third through hole; one end of the screw rod is connected with the flashboard, and the other end of the screw rod is provided with a columnar structure; and the surface of the screw rod is provided with a second thread structure, and the second thread structure is meshed with the first thread structure.

Above-mentioned utility model provides a sampling gate or weighing sampling device is used for solving near the gate lid among the prior art's the technical problem that the oil is easily frozen, has realized the technological effect that prevents frostbite stifled.

However, no matter which type of sampling gate which meets the sampling requirement and standard is installed, electrogas welding is needed when the sampling gate used in most of the existing oil wells is reconstructed. Electrogas welding's the work load of starting a fire is big, and the staff and the equipment that use are many, and the shut-in time is long, not only causes inevitable economic loss, uses electrogas welding still to have very big safety risk at the well head.

In order to solve the problem that the oil sample of the present oil well is not standard and irregular, the well head is not fired during the improvement, the installation is convenient, the sampling gate of the existing sampling device can be fully utilized, and the production cost is further reduced.

Disclosure of Invention

The utility model aims at providing an intubation type sampling gate solves the problem of the inaccurate oil well liquid physical property analysis distortion that brings of the oil sample of using the sampling gate and reforms transform the problem with high costs and the existence safety risk of using the sampling gate. The accuracy of liquid analysis is produced to the oil well to the improvement, reduces the transformation cost of sample gate, avoids the potential safety hazard in the transformation process, improves the transformation efficiency of sample gate.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an intubation-type sampling gate includes a sampling gate body, wherein: the end part of the outlet end of the sampling insertion pipe is provided with a sealing boss, and the sealing gaskets are arranged between the sampling gate body and the sealing boss of the sampling insertion pipe and outside the pipe body of the sampling insertion pipe in front of the sealing boss; the sampling insertion pipe is arranged in the internal and external thread adapter and then is respectively in threaded connection with the sampling gate connector and the sampling gate body in the wellhead sampling pipeline, and the inlet end of the connected sampling insertion pipe is positioned in the center of the sampling pipeline.

Preferably, the inlet end of the sampling cannula is a bevel and the bevel faces the incoming liquid in the sampling line.

Preferably, the angle of the bevel of the inlet end of the sampling cannula is set between 35 degrees and 55 degrees.

Preferably, the angle of the bevel of the inlet end of the sampling cannula is 45 degrees.

Preferably, the bevel opening of the inlet end of the sampling cannula is in the same direction as the hand wheel or the handle in the sampling gate body.

Preferably, the sampling gate body is a ball valve.

Preferably, the sampling gate body is a shut-off valve.

Preferably, the internal thread end in the internal and external thread adapter is connected with a sampling gate connector in a wellhead sampling pipeline; and the external thread end in the internal and external thread adapter is in threaded connection with the sampling gate body.

Preferably, the outer diameter of the sealing boss is smaller than the inner diameter of the inlet end of the sampling gate body and larger than the bore diameter of the liquid flow passage at the inlet end of the sampling gate body.

Preferably, the length of the sampling cannula is equal to the sum of the radius of the sampling pipeline, the length of the sampling gate connector and the depth of the inlet end limiting inner cavity of the sampling gate body.

Compared with the prior art, the utility model discloses make full use of the sample gate of existing usefulness, only need in the sample gate of existing usefulness in pack into the sample intubate can, reduced the transformation cost by a wide margin. Its rational in infrastructure, overall dimension is small and exquisite, the installation is convenient, and its advantage concrete presentation is in:

1. the utility model discloses simple to operate, need not to fire and reform transform, only need lift former sample gate off the sample intubate of packing into and can use, make full use of existing production data, shortened the time of reforming construction by a wide margin, effectively improved the operation time rate of oil well.

2. Use the utility model discloses reform transform the sample gate of usefulness, need not to fire at the well head, need not to use the operating personnel of special instrument, equipment and special work and race, do not have the safety risk, reduced by a wide margin and reformed and used equipment cost, avoided the safety risk.

3. The utility model provides a sample gate body can be stop valve or ball valve, and its application scope is wide.

4. The utility model provides a seal ring has adopted resistant oily butadiene acrylonitrile rubber, and the screw thread in the internal and external screw thread crossover sub is the same with the screw thread of sample gate, can ensure sealed respond well, does not exist and runs, emits, drips, leaks the phenomenon.

5. The utility model discloses the preferred 45 bevel connection of entrance point of well sample intubate, exit end are equipped with sealed boss, and sealed boss has blocked the liquid stream between sample intubate and the interior external screw thread crossover sub, can ensure that the sample intubate oil sample that gets comes from the central point of sample pipeline and puts.

6. The utility model provides a standard and standard that the bevel connection orientation of sample intubate entrance point comes the liquid direction, further guarantees the oil sample of getting. The sampling cannula of multiple length of processing can select to use the sampling cannula of corresponding length according to indexes such as sample gate connector and sampling pipeline internal diameter.

7. The utility model discloses an interior external screw thread crossover sub is in the same place the sampling gate connector of usefulness in with well head sampling pipeline with this body coupling of sampling gate, connects convenient and fast, processing low cost.

8. The utility model discloses simple structure, processing cost are low, can reduce investment cost, improve economic benefits.

9. The utility model discloses the sample connection that is particularly useful for the sample gate of existing usefulness is not at sampling pipeline center, causes the inaccurate oil well of oil appearance data admission.

To sum up, the utility model discloses to the oil well that the sample connection is not at sampling pipeline center, alone can satisfy in the extremely short time and reform transform, change the operation, the shut-in time shortens by a wide margin, can reform transform the construction by conventional 1 hour fire, shortens to change in 10 minutes and finishes, has improved oil well operation rate greatly, has shortened oil well downtime, and has avoided because of the potential safety hazard problem that exists in the fire work progress. Also reduced manual work and equipment cost simultaneously, when changing, reforming transform the convenience, satisfied the normal production requirement of oil well, the utility model discloses the result of use that has showing can produce fine economic benefits.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the appearance of the sampling cannula in fig. 1.

In the figure: the sampling gate comprises a sampling gate body 1, a sealing washer 2, an internal and external thread adapter 3, a sampling insertion tube 4, a sampling bent tube 5 and a sealing boss 6.

Detailed Description

The drawings are for reference and illustration purposes only and are not intended to limit the scope of the present disclosure. The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 and 2, a spigot-type sampling gate comprises a sampling gate body 1, wherein: a sealing boss 6 is arranged at the end part of the outlet end of the sampling insertion tube 4, and a sealing gasket 2 is arranged between the sampling gate body 1 and the sealing boss 6 of the sampling insertion tube 4 and outside the tube body of the sampling insertion tube 4 in front of the sealing boss 6; the inside and outside screw thread crossover sub 3 is equipped with sample intubate 4 in the back respectively with the sample gate connector and the 1 threaded connection of sample gate body in the well head sample pipeline, the entrance point of the sample intubate 4 after the connection is located the sample pipeline center.

The utility model discloses make full use of the sample gate connector among the sample gate of existing usefulness in the well head production flow and the sample gate line of current well head, only installed sample intubate 4 between sample line and sample gate body 1 through interior external screw adapter 3 in original sample gate body 1, the entrance point that makes sample intubate 4 after connecting is located sample line center.

Because the sealing boss 6 of the sampling insertion pipe 4 is arranged in the sampling gate body 1 and the sealing gaskets 2 are arranged on two sides of the sealing boss 6, the sealing boss 6 of the sampling insertion pipe 4 arranged in the sampling gate body 1 blocks liquid flow between the sampling insertion pipe 4 and the internal and external thread adapter 3, and the purpose of obtaining an oil sample at the central position of a sampling pipeline is realized.

The utility model discloses and belong to mechanical connection between the sample pipeline, at the transformation in-process, do not use the electrogas welding, do not move the fire, do not have the safety risk. The labor is few, special equipment is not needed, the well stopping time is short, and the installation can be finished in ten minutes generally. Under the condition that a standard oil sample can be obtained and the accuracy of oil well liquid production analysis is improved, the modification cost is obviously reduced.

On the basis of the first embodiment, the utility model discloses following embodiment still:

a preferred embodiment: the inlet end of the sampling cannula 4 is beveled and the beveled opening faces the incoming liquid in the sampling line. The bevel connection of the inlet end of the sampling insertion tube 4 faces the liquid inlet direction, and the accuracy of the oil sample can be guaranteed.

A preferred embodiment: the angle of the bevel of the inlet end of the sampling cannula 4 is set between 35 degrees and 55 degrees.

A preferred embodiment: the angle of the bevel of the inlet end of the sampling cannula 4 is 45 degrees.

A preferred embodiment: the bevel opening of the inlet end of the sampling insertion pipe 4 is in the same direction with a hand wheel or a handle in the sampling gate body 1. In the equipment in-process of sample intubate 4 and sample gate body 1, hand wheel or handle syntropy in the bevel connection that just guarantees sample intubate 4 and the sample gate body 1 will the utility model discloses when the sample gate connector of packing into, whether the bevel connection that just can conveniently differentiate sample intubate 4 is relative with the incoming liquid direction in the sample pipeline.

A preferred embodiment: the sampling gate body 1 is a ball valve.

A preferred embodiment: the sampling gate body 1 is a stop valve.

A preferred embodiment: the internal thread end in the internal and external thread adapter 3 is connected with a sampling gate connector in a wellhead sampling pipeline; and the external thread end in the internal and external thread adapter 3 is in threaded connection with the sampling gate body 1.

A preferred embodiment: the outer diameter of the sealing boss 6 is smaller than the inner diameter of the inlet end of the sampling gate body 1 and larger than the aperture of a liquid flow channel at the inlet end of the sampling gate body 1, so that the sampling cannula 4 is convenient to install and can block liquid flow between the sampling cannula 4 and the internal and external thread adapter 3, the oil sample is guaranteed to be liquid from the central position of a sampling pipeline, and the accuracy of the oil sample is guaranteed.

A preferred embodiment: the length of the sampling insertion pipe 4 is equal to the sum of the radius of the sampling pipeline, the length of the sampling gate connector and the depth of the inlet end limiting inner cavity of the sampling gate body 1. In order to ensure that the inlet of the sampling cannula 4 is located at the center of the sampling pipeline, the length of the sampling cannula 4 is determined according to the thickness of the sampling pipeline, the length of the sampling gate connector and the depth of the limiting inner cavity at the inlet end of the sampling gate body 1.

The utility model discloses an installation and application method: 1. the sampling cannula 4 with the proper length is selected to ensure that the bevel connection of the sampling cannula 4 is arranged at the central part of the sampling pipeline after installation, the oil-resistant nitrile butadiene rubber is preferably selected as the sealing washer 2, and the stainless steel pipe is preferably selected as the sampling cannula 4.

2. The sampling insertion tube 4 and the sampling gate body 1 are assembled together, and the bevel opening of the sampling insertion tube 4 is ensured to be in the same direction with the hand wheel or the handle of the sampling gate body 1.

3. And (4) stopping the well in case of power failure, braking the pumping unit, and closing a production gate and a back pressure gate of the well mouth.

4. And opening the original sampling gate, so that the liquid in the sampling pipeline flows out from the sampling elbow pipe 5, and the residual pressure in the sampling pipeline is exhausted.

5. And (5) disassembling the original sampling gate.

6. Original sampling gate connector department winding thread seal area and general in the sampling pipeline the utility model discloses with original sampling gate connector threaded connection, guarantee that the hand wheel or the handle of sampling gate body 1 are parallel with the sampling pipeline and are located the incoming liquid direction, the bevel connection in the sampling cannula 4 and the incoming liquid in the sampling pipeline are in opposite directions this moment.

7. And (4) reversing the original wellhead production flow, loosening the brake of the oil pumping unit, and transmitting power to open the well.

8. When needing to acquire the oil sample, open the hand wheel or the handle of sample gate body 1, the liquid of sample pipeline central point position flows out from sample return bend 5.

The embodiments described above are merely exemplary embodiments, but the present invention is not limited to these embodiments, and those skilled in the art can make modifications without departing from the spirit and teaching of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and modifications can be made, and equivalents can be substituted for elements thereof. Any modification, equivalent replacement, improvement and the like made within the spirit and the concept of the present invention should be included in the protection scope of the present invention. The scope of protection is therefore not limited to the description above.

Claims (10)

1. The utility model provides an intubate formula sample gate, includes the sample gate body, characterized by: the end part of the outlet end of the sampling insertion pipe is provided with a sealing boss, and the sealing gaskets are arranged between the sampling gate body and the sealing boss of the sampling insertion pipe and outside the pipe body of the sampling insertion pipe in front of the sealing boss; the sampling insertion pipe is arranged in the internal and external thread adapter and then is respectively in threaded connection with the sampling gate connector and the sampling gate body in the wellhead sampling pipeline, and the inlet end of the connected sampling insertion pipe is positioned in the center of the sampling pipeline.

2. The lock gate of claim 1, wherein the inlet end of the sampling tube is beveled and the beveled opening faces the incoming fluid in the sampling line.

3. The plunger gate of claim 2 wherein the angle of the bevel of the inlet end of said sampling cannula is set between 35 degrees and 55 degrees.

4. The plunger gate of claim 2, wherein the angle of the bevel of the inlet end of said sampling cannula is 45 degrees.

5. A spigoted sampling gate as claimed in claim 2, 3 or 4 in which the bevel of the inlet end of the sampling spigot is co-directional with the hand wheel or handle in the body of the sampling gate.

6. The cannulated sampling gate of claim 5, wherein the body of the sampling gate is a ball valve.

7. The cannulated sampling gate of claim 5, wherein the sampling gate body is a stop valve.

8. The spile sampling gate of claim 5, wherein the internally threaded end of the internally and externally threaded adapter is connected to a sampling gate connector in a wellhead sampling line; and the external thread end in the internal and external thread adapter is in threaded connection with the sampling gate body.

9. The plunger gate of claim 5 wherein said sealing boss has an outer diameter less than the inner diameter of the inlet end of the body of the sampling gate and greater than the diameter of the bore of the fluid passageway at the inlet end of the body of the sampling gate.

10. The spigot sampling gate of claim 5, wherein the length of the sampling spigot is equal to the sum of the radius of the sampling line, the length of the sampling gate connector, and the depth of the inlet end limiting cavity of the sampling gate body.

Images