CN210134924U - Oil gas well sampler - Google Patents

Abstract

The utility model provides an oil gas well sampler. The oil-gas well sampler comprises a sampling joint and a sample container connected with the sampling joint; the sampling joint comprises a central pipe, and a liquid inlet pipeline, an exhaust pipeline and a liquid discharge pipeline which are respectively communicated with the central pipe, wherein the liquid discharge pipeline is connected with a sample container, a first buffer plate is arranged in the central pipe, and the first buffer plate is opposite to a liquid outlet of the liquid inlet pipeline. The utility model discloses oil gas well sampler is connected with the sample connection through the inlet channel of sampling joint, and high-pressure gas-liquid mixture is through first buffer board buffering back, and gas is via the exhaust duct discharge, and in liquid discharged the sample container via the drainage tube, gas-liquid mixture can not assault the sample container and lead to the gas-liquid to splash, can not the polluted environment to the sample is accurate, can acquire accurate oil gas state data.

Description

Oil gas well sampler

Technical Field

The utility model relates to an oil gas exploitation technical field especially relates to an oil gas well sampler.

Background

In the oil and gas exploitation process, sampling analysis on oil and gas yield, flow pressure gradient, bottom crude oil density and the like of an oil and gas well is often needed, the state of the oil and gas is analyzed, and data support is provided for next-step exploitation.

At present, the Christmas tree sampling valves are generally divided into two types, one type is that the sampling valve faces downwards, and the other type is that the sampling valve is horizontal. Either way, the sampling port is a short tube that is vertically downward. Oil and gas well samplers are typically open iron sampling barrels. During sampling, a tester needs to open the sampling valve with one hand and hold the sampling barrel with the other hand to receive an oil gas sample.

However, when the sampling valve is too small to open during sampling, the liquid in the oil and gas well cannot be brought out, so that the sampling is difficult; if the sampling valve is too large, gas and liquid directly impact the sampling barrel to cause gas and liquid splashing, thereby not only polluting the environment, but also causing the problem of inaccurate sampling.

SUMMERY OF THE UTILITY MODEL

The utility model provides an oil gas well sampler, which aims to solve the problem that the prior sampling barrel directly supports a sampling port, if the sampling valve is too small, the liquid in the oil gas well can not be brought out, thus leading to difficult sampling; if the sampling valve is too large, gas and liquid directly impact the sampling barrel to cause gas and liquid splashing, thereby not only polluting the environment, but also solving the technical problem of inaccurate sampling.

The utility model provides an oil gas well sampler, which comprises a sampling joint and a sample container connected with the sampling joint; the sampling joint comprises a central pipe and a liquid inlet pipeline, an exhaust pipeline and a liquid discharge pipeline which are communicated with the central pipe respectively, the liquid discharge pipeline is connected with the sample container, a first buffer plate is arranged in the central pipe, and the first buffer plate is opposite to a liquid outlet of the liquid inlet pipeline.

The oil and gas well sampler comprises an oil and gas separation plate, wherein the oil and gas separation plate is positioned at the gas inlet of the exhaust pipeline.

The oil-gas well sampler comprises a plate body and a plurality of exhaust holes formed in the plate body.

As above oil gas well sampler, still including being located the collection liquid cover in the exhaust duct, collect liquid cover including the spliced pole and with spliced pole fixed connection's housing, the housing with exhaust duct's inner wall has carminative passageway.

As above oil gas well sampler, wherein, the housing is close to the side of oil gas separation board is the circular conical surface, and certainly the spliced pole to oil gas separation board direction, the diameter of circular conical surface crescent.

As above oil gas well sampler still establishes including the lid exhaust duct's connection lid, just the connection lid be equipped with the gas vent of exhaust duct intercommunication, the gas vent be equipped with spliced pole fixed connection's connecting piece.

The oil-gas well sampler comprises a connecting piece, a gas outlet and a gas sampling device, wherein the connecting piece comprises a circular ring and a connecting arm, the circular ring is accommodated in the gas outlet, a gap is formed between the circular ring and the gas outlet, and the connecting arm is fixedly connected with the outer side surface of the circular ring and the gas outlet respectively; and the inner side surface of the circular ring is provided with an internal thread connected with the connecting column.

The oil and gas well sampler comprises a liquid inlet pipeline, a central pipe, a first buffer plate and a liquid outlet pipeline, wherein the liquid inlet pipeline and the central pipe are both round pipes, the central axis of the liquid inlet pipeline is perpendicular to the central axis of the central pipe, and the central pipe is integrated with the partial side wall opposite to the liquid outlet of the liquid inlet pipeline and the first buffer plate.

The oil and gas well sampler comprises a sampling port, a liquid inlet pipeline and a sampling pipe, wherein the sampling port is connected with the sampling pipe through a screw thread.

The oil and gas well sampler as described above, wherein the drain line is provided with a second buffer plate.

The utility model discloses oil gas well sampler is connected with the sample connection through the inlet channel of sampling joint, and high-pressure gas-liquid mixture is through first buffer board buffering back, and gas is via the exhaust duct discharge, and in liquid discharged the sample container via the drainage tube, gas-liquid mixture can not assault the sample container and lead to the gas-liquid to splash, can not the polluted environment to the sample is accurate, can acquire accurate oil gas state data.

Drawings

The above and other objects, features and advantages of the embodiments of the present invention will become more readily understood from the following detailed description with reference to the accompanying drawings. Embodiments of the invention will be described, by way of example and not by way of limitation, in the accompanying drawings, in which:

fig. 1 is a schematic structural diagram of an oil-gas well sampler according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of an oil and gas well sampler of an embodiment of the present invention;

FIG. 3 is a schematic structural view of an oil-gas separation plate of the oil-gas well sampler according to the embodiment of the present invention;

FIG. 4 is a schematic structural view of a liquid collecting cover of the oil-gas well sampler of the embodiment of the present invention;

fig. 5 is a cross-sectional view of a connection cap of an oil and gas well sampler of an embodiment of the present invention;

fig. 6 is the utility model discloses a top view of oil gas well sampler's connection lid.

Description of reference numerals:

1: a sample container;

2: a central tube;

3: a liquid inlet pipeline;

4: an exhaust duct;

5: a liquid discharge conduit;

6: an oil-gas separation plate;

61: a plate body;

62: an exhaust hole;

7: a liquid collecting cover;

71: connecting columns;

72: a housing;

8: a connecting cover;

81: a first tub portion;

82: a covering part;

83: a second tub portion;

84: an exhaust port;

9: a connecting member;

91: a circular ring;

92: a connecting arm;

10: a second buffer plate;

11: and (4) end covers.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

Fig. 1 is a schematic structural diagram of an oil-gas well sampler according to an embodiment of the present invention; fig. 2 is the utility model discloses a section view of oil gas well sampler.

Referring to fig. 1 to 2, an embodiment of the present invention provides an oil and gas well sampler, including a sampling joint and a sample container 1 connected to the sampling joint; sampling joint includes center tube 2 and inlet channel 3, exhaust duct 4 and drain line 5 with center tube 2 intercommunication respectively, and drain line 5 is connected with sample container 1, is provided with first buffer board in the center tube 2, and first buffer board is relative with inlet channel 3's liquid outlet.

Specifically, the sampling joint is used for connecting a sampling port and a sample container 1, and comprises a central pipe 2, a liquid inlet pipeline 3, an exhaust pipeline 4 and a liquid discharge pipeline 5. Wherein, center tube 2, inlet channel 3, exhaust duct 4 and drainage tube 5 all can be pipe, square pipe etc. preferably, center tube 2, inlet channel 3, exhaust duct 4 and drainage tube 5 are the pipe. The liquid inlet of the liquid inlet pipeline 3 is fixedly connected with the sampling port, and the liquid outlet of the liquid inlet pipeline 3 is connected with the central pipe 2. The inlet of the inlet pipe 3 can be provided with a flange and is fixedly connected with the sampling port through a bolt and a nut, or the inlet of the inlet pipe 3 is provided with a thread and is connected with the sampling port. The exhaust pipeline 4 is used for exhausting gas, one end of the exhaust pipeline is communicated with the central pipe 2, and the other end of the exhaust pipeline is provided with an exhaust port. The liquid discharge pipe 5 is used for discharging liquid, one end of the liquid discharge pipe is communicated with the central pipe 2, and the other end of the liquid discharge pipe is connected with the sample container 1.

The sample container 1 can be a sample barrel, a sample cup, a sample bottle and the like, and the embodiment of the utility model provides a do not limit this.

The first buffer plate is located in the central tube 2 and is used for buffering liquid discharged from the liquid inlet pipeline 3, and the first buffer plate is opposite to the liquid outlet of the liquid inlet pipeline 3. High-pressure gas-liquid mixture discharged from the liquid inlet pipeline 3 is flushed to the first buffer plate, so that the high-pressure gas-liquid mixture is prevented from being flushed to the sample container 1, and gas and liquid are prevented from splashing. And, high-pressure gas-liquid mixture strikes on first buffer plate, and first buffer plate can also play the effect of separation gas-liquid mixture.

Preferably, the central tube 2 is coaxial with the liquid discharge duct 5 and the gas discharge duct 4, respectively, and the central tube 2, the liquid discharge duct 5 and the gas discharge duct 4 are an integrally formed integral piece. The central axis of the liquid inlet pipeline 3 is vertical to the central axis of the central pipe 2. The partial lateral wall that center tube 2 and inlet channel 3 liquid outlet are relative and first buffer board are integrated into one piece of integrated into one piece.

In the specific use process, the liquid inlet pipeline 3 of the sampling joint is connected with the sampling port, and the liquid discharge pipeline 5 is connected with the sample container 1. Then, the sampling valve is opened, the high-pressure gas-liquid mixture is discharged to the central pipe 2 through the liquid inlet pipeline, liquid in the high-pressure gas-liquid mixture flows to the sample container 1 through the liquid discharge pipeline 5 under the action of gravity through the buffering effect of the first buffer plate, and gas is discharged through the gas discharge pipeline 4.

In some embodiments the drain 5 is provided with a second buffer plate 10 to buffer liquid draining to the sampling vessel. The second buffer plates 10 may include two, which are respectively disposed at both sides of the liquid discharge duct 5, and the two second buffer plates 10 have a space in the axial direction of the liquid discharge duct 5 and overlap in the radial direction of the liquid discharge duct 5.

The embodiment of the utility model provides an oil gas well sampler is connected with the sample connection through the feed liquor pipeline of sampling joint, and high-pressure gas-liquid mixture is through first buffer board buffering back, and gas is via the exhaust duct discharge, and in liquid discharged the sample container via the drainage tube, gas-liquid mixture can not assault the sample container and lead to the gas-liquid to splash, can not the polluted environment to the sample is accurate, can acquire accurate oil gas state data.

On the basis of the above embodiment, in order to further separate the oil-gas mixture, the oil-gas well sampler provided by the present embodiment further includes an oil-gas separation plate 6, and the oil-gas separation plate 6 is located at the gas inlet of the exhaust pipeline 5.

Oil-gas separation board 6 can the joint in center tube 2, perhaps, oil- gas separation board 6 and 2 threaded connection of center tube, perhaps, oil-gas separation board 6 is connected with 2 interference of center tube, the embodiment of the utility model provides a do not injectd this.

In some embodiments, the oil-gas separation plate 6 may be a filter screen, and when the oil-gas mixture passes through the filter screen, the gas is discharged to the gas inlet of the exhaust duct 5 through the filter holes of the filter screen, and the liquid adheres to the filter screen and flows out toward the liquid discharge channel under the action of gravity.

Fig. 3 is the utility model discloses oil gas well sampler's oil-gas separation plate's schematic structure diagram.

Referring to fig. 3, in other embodiments, the oil-gas separation plate 6 includes a plate body 61 and a plurality of exhaust holes 62 each provided on the plate body 61. The plate body 61 is a circular plate, which can be a steel plate, a plastic plate, etc., and the embodiment of the present invention does not limit the same. The plate body 61 is provided with a plurality of exhaust holes 62, and the exhaust holes 62 are preferably circular holes. The plurality of exhaust holes 62 may be distributed on the plate body 61 in a circular matrix, or the plurality of exhaust holes 62 may be distributed on the plate body 61 in a radial shape, and of course, the plurality of exhaust holes 62 may also be distributed on the plate body 61 in an irregular shape.

The oil gas well sampler that this embodiment provided utilizes the oil-gas separation board further to make the gas-liquid mixture separation, makes the sample of acquireing more accurate.

Figure 4 is the utility model discloses the structural schematic of collection liquid cover of oil gas well sampler.

Referring to fig. 4, the oil and gas well sampler provided by the present embodiment further includes a liquid collecting cover 7 located in the exhaust pipe 4, the liquid collecting cover 7 includes a connecting column 71 and a cover casing 72 fixedly connected to the connecting column 71, and the cover casing 72 and the inner wall of the exhaust pipe 4 have an exhaust passage.

Specifically, the liquid collecting cover 7 comprises a connecting column 71 and a cover casing 72, and preferably, the connecting column 71 and the cover casing 72 are integrally formed into a whole piece. The connecting column 71 is used for being fixedly connected with the inner wall of the exhaust pipeline 4, or the connecting column 71 is fixedly connected with the inner wall of the exhaust pipeline 4 through a connecting piece.

The housing 72 can be a shell with a bowl-shaped structure, the connecting column 71 is fixedly connected with the concave surface of the shell with the bowl-shaped structure, and when the gas-liquid mixture passes through the housing 72, the liquid is attached to the housing 72 and slides downwards along the housing 72 to the liquid discharge channel 5.

The housing 72 may have another structure, and with reference to fig. 4, the side surface of the housing 72 close to the oil-gas separation plate 6 is a conical surface, and the diameter of the conical surface gradually increases from the connecting column 71 to the oil-gas separation plate 6. When the gas-liquid mixture passes through the conical surface, the liquid is attached to the conical surface and slides downwards along the conical surface, and then flows to the liquid discharge channel 5 through the oil-gas separation plate 6. At this time, the diameter of the cover 72 is smaller than the inner diameter of the exhaust duct 4, and a passage for exhaust gas is provided between the cover 72 and the exhaust duct 4.

Fig. 5 is a cross-sectional view of a connection cap of an oil and gas well sampler of an embodiment of the present invention; fig. 6 is the utility model discloses a top view of oil gas well sampler's connection lid.

Referring to fig. 5 and 6, the embodiment of the utility model provides an oil gas well sampler still includes to cover and establishes at exhaust duct's connection lid 8, and connects lid 8 and be equipped with the gas vent 84 with exhaust duct 3 intercommunication, gas vent 84 be equipped with spliced pole 71 fixed connection's connecting piece 9.

Specifically, the connecting cover 8 includes a first barrel portion 81, a cover portion 82, and a second barrel portion 83, where the first barrel portion 81 and the second barrel portion 83 are both of a barrel-shaped structure, the first barrel portion 81 and the second barrel portion 83 are coaxial, and a diameter of the first barrel portion 81 is larger than a diameter of the second barrel portion 83. The inner wall of the first tub 81 may be provided with a screw thread to be screw-coupled with the exhaust duct 4. The covering portion 82 is disposed between the first barrel portion 81 and the second barrel portion 83, the covering portion 82 is provided with a through hole having an inner diameter identical to that of the second barrel portion 83, and the through hole of the covering portion 82 and the center hole of the second barrel portion 83 form an exhaust port 84. Preferably, the first barrel portion 81, the lid portion 82 and the second barrel portion 83 are an integrally formed one-piece.

One end of the connecting piece 9 is fixedly connected with the inner wall of the exhaust port 84, and the other end of the connecting piece 9 is fixedly connected with the connecting column 71. The connecting member 9 may be a connecting column, which is welded to the inner wall of the exhaust port 84 and the connecting column 71, respectively. It will be appreciated that although the connector 9 is provided within the exhaust port 84, there is still an exhaust passage between the connector 9 and the inner wall of the exhaust port 84.

In a preferred embodiment, the connecting member 9 includes a ring 91 accommodated in the exhaust port 84 and a connecting arm 92, the ring 91 has a gap with the exhaust port 84, and the connecting arm 92 is fixedly connected to the outer side surface of the ring 91 and the exhaust port 71, respectively; the inner side surface of the ring 91 is provided with an internal thread connected with the connecting column 71.

In particular, the connecting element 9 may also comprise a circular ring 91 and a connecting arm 92. The medial surface of ring 91 is used for with spliced pole 71 fixed connection, spliced pole 71 can weld in ring 91, perhaps, the medial surface of ring 91 is provided with the internal thread of connecting, with the external screw thread connection that sets up on the spliced pole 71. Between the ring 91 and the exhaust port 84, there is a passage for exhaust gas.

One end of the connecting arm 92 is fixedly connected to the outer side surface of the ring 91, and the other end of the connecting arm 92 is fixedly connected to the inner side surface of the exhaust port 84. One connecting arm 92 may be provided, and a plurality of connecting arms 92 may be provided, for example, two, three, four, etc., and the plurality of connecting arms 92 are provided at intervals along the circumferential direction of the circular ring 91. The embodiment of the present invention does not limit the number of the connecting arms 92.

With continued reference to fig. 1 and 2, an end cap 11 is further disposed on the top end of the connecting cover 8, the end cap 11 is disposed on the second barrel portion 83, and an opening communicating with the exhaust port 84 is further disposed in the center of the end cap 11. An iron sand net is arranged in the end cover 11, and plays a role in secondary liquid discharge blocking.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only 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 therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description above, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. An oil and gas well sampler is characterized by comprising a sampling joint and a sample container connected with the sampling joint;

the sampling joint comprises a central pipe and a liquid inlet pipeline, an exhaust pipeline and a liquid discharge pipeline which are communicated with the central pipe respectively, the liquid discharge pipeline is connected with the sample container, a first buffer plate is arranged in the central pipe, and the first buffer plate is opposite to a liquid outlet of the liquid inlet pipeline.

2. The oil and gas well sampler of claim 1, further comprising an oil and gas separation plate located at the gas inlet of the exhaust conduit.

3. The oil and gas well sampler of claim 2, wherein the oil and gas separation plate comprises a plate body and a plurality of vent holes all provided on the plate body.

4. An oil and gas well sampler as claimed in claim 2 further comprising a liquid collection cover located within the exhaust conduit, the liquid collection cover comprising an enclosure with a connection post and with the connection post fixed connection, the enclosure having an exhaust channel with the inner wall of the exhaust conduit.

5. The oil and gas well sampler of claim 4, wherein the side of the casing close to the oil and gas separation plate is a conical surface, and the diameter of the conical surface gradually increases from the connecting column to the oil and gas separation plate.

6. The oil and gas well sampler of claim 4, further comprising a connection cover covering the exhaust pipe, wherein the connection cover is provided with an exhaust port communicated with the exhaust pipe, and the exhaust port is provided with a connecting piece fixedly connected with the connecting column.

7. The oil and gas well sampler of claim 6, wherein the connecting member comprises a ring received in the exhaust port and a connecting arm, the ring having a gap with the exhaust port, the connecting arm being fixedly connected to an outer side of the ring and the exhaust port, respectively; and the inner side surface of the circular ring is provided with an internal thread connected with the connecting column.

8. The oil and gas well sampler according to any one of claims 1 to 7, wherein the liquid inlet pipeline and the central pipe are both circular pipes, the central axis of the liquid inlet pipeline is perpendicular to the central axis of the central pipe, and the part of the side wall of the central pipe opposite to the liquid outlet of the liquid inlet pipeline and the first buffer plate are integrally formed.

9. An oil and gas well sampler as claimed in any one of claims 1 to 7 wherein the liquid inlet conduit is provided with a screw thread for connection to a sampling port.

10. Oil and gas well sampler according to any one of claims 1 to 7, characterized in that the drainage line is provided with a second buffer plate.

Images