CN215332799U - Single well mouth separation metering device - Google Patents
Single well mouth separation metering device Download PDFInfo
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- CN215332799U CN215332799U CN202121924113.2U CN202121924113U CN215332799U CN 215332799 U CN215332799 U CN 215332799U CN 202121924113 U CN202121924113 U CN 202121924113U CN 215332799 U CN215332799 U CN 215332799U
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Abstract
The utility model discloses a single-well wellhead separation metering device which comprises two symmetrically arranged separation cylinders, wherein the bottoms and the upper parts of the two separation cylinders are respectively communicated through pipelines, the pipelines at the bottoms and the upper parts of the separation cylinders are respectively provided with a three-way ball valve, the three-way ball valve at the upper part is communicated with a liquid inlet, and the three-way ball valve at the bottom is communicated with a liquid outlet; a water storage bag is arranged at the bottom in the separating cylinder, an intelligent liquid level meter is arranged at the outer side of the separating cylinder, the bottom of the intelligent liquid level meter is communicated with the water storage bag, and the top of the intelligent liquid level meter is communicated with the upper part of the separating cylinder; the intelligent liquid level meter is communicated with a controller, and the controller is electrically connected with the three-way ball valve; the tops of the two separation cylinders are communicated through a gas phase pipeline, and a gas flowmeter is arranged on the gas phase pipeline positioned at the tops of the separation cylinders. The single-well wellhead separation metering device provided by the utility model is simple in structure, convenient to maintain, convenient and fast in metering mode and accurate in metering result.
Description
Technical Field
The utility model relates to the technical field of oilfield related engineering, in particular to a single-well wellhead separation metering device.
Background
The fluid production of an oil well is one of the important parameters for oil field development. With the improvement of the scientific and fine management level of the oil field, higher requirements are provided for the accuracy and reliability and economic rationality of oil well measurement data. At present, the conventional oil well metering method of the domestic oil field mainly comprises glass pipe oil metering, single-well overhead tank oil metering, tipping bucket oil metering, indicator diagram method oil metering and the like. The glass tube oil metering equipment is simple, but the ground matched construction investment is large, the operation is relatively complex, and the metering error is up to 10-20%; the single-well overhead tank oil measurement cannot realize continuous oil well metering, and is greatly influenced by manual operation and has large metering error; the tipping bucket weighing type oil measurement solves the problem of high viscosity and wall hanging of oil products by detecting the weight of the tipping bucket and the oil, realizes manual and automatic continuous measurement of a single well, but has the investment cost up to twenty-ten thousand yuan and is not suitable for measurement of the single well of an oil field; the oil measurement by the indicator diagram method needs a large amount of oil well production data and is influenced by a plurality of factors under the underground working condition, and at present, no known mature and accurate damping coefficient calculation method exists, so that the measurement error is large.
Therefore, it is necessary to develop a metering device with simple maintenance and low cost to realize accurate metering of data.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a single-well wellhead separation metering device, which solves the problems in the prior art, and has the advantages of simple structure, convenience in maintenance, convenience in metering mode and accurate metering result.
In order to achieve the purpose, the utility model provides the following scheme:
the utility model provides a single-well wellhead separation metering device which comprises two symmetrically-arranged separation cylinders, wherein the bottoms and the upper parts of the two separation cylinders are respectively communicated through pipelines, the pipelines at the bottoms and the upper parts of the separation cylinders are respectively provided with a three-way ball valve, the three-way ball valve at the upper part is communicated with a liquid inlet, and the three-way ball valve at the bottom part is communicated with a liquid outlet; a water storage bag is arranged at the bottom in the separating cylinder, an intelligent liquid level meter is arranged on the outer side of the separating cylinder, the bottom of the intelligent liquid level meter is communicated with the water storage bag, and the top of the intelligent liquid level meter is communicated with the upper part of the separating cylinder; the intelligent liquid level meter is communicated with a controller, and the controller is electrically connected with the three-way ball valve; the top parts of the two separating cylinders are communicated through a gas phase pipeline, and a gas flowmeter is arranged on the gas phase pipeline positioned at the top part of the separating cylinder.
Optionally, the separation cylinder is of a cylindrical structure, a cylindrical base is arranged at the bottom of the separation cylinder, and the base is hollow and communicated with the inside of the separation cylinder; the separation cylinders are respectively a first separation cylinder and a second separation cylinder which have the same structure, and the three-way ball valves are respectively a first three-way ball valve and a second three-way ball valve which have the same structure; the first separation barrel is communicated with a base at the bottom of the second separation barrel through a pipeline, a first three-way ball valve is arranged on the pipeline communicated with the base at the bottom of the second separation barrel, the upper parts of the first separation barrel and the second separation barrel are communicated through a pipeline, a second three-way ball valve is arranged on the pipeline communicated with the upper parts of the first separation barrel and the second separation barrel, the second three-way ball valve is communicated with a liquid inlet, and the first three-way ball valve is communicated with a liquid outlet; the water storage bag is arranged in the base.
Optionally, a drain pipe is communicated with the side wall of the base, and a valve is arranged on the drain pipe.
Optionally, the base outside is provided with the ascending funnel that adds water of opening, add water funnel bottom with the water storage package intercommunication, just it is provided with the control valve on the funnel to add water.
Optionally, two ends of a pipeline communicated with the upper part of the separation cylinder are respectively communicated with the first separation cylinder and the second separation cylinder along the cylinder wall of the first separation cylinder and the second separation cylinder in a tangential direction, the pipeline communicated with the liquid inlet is tangentially connected into the separation cylinder, crude oil enters the separation cylinder along the cylinder wall in a tangential direction, and a high-speed rotating flow field is formed after the crude oil enters the separation cylinder due to certain pressure of liquid, so that the effect is called as a rotational flow effect; crude oil enters the separation cylinder through the liquid inlet to generate a cyclone effect, a liquid phase forms an inverted cone-shaped vortex surface under the actions of centrifugal force, gravity and buoyancy, a liquid phase with high density flows to the bottom along the cylinder wall of the separation cylinder, and a gas phase with low density rises to the top of the separation cylinder along the center of the vortex to realize the separation of the liquid phase and the gas phase.
Optionally, the first three-way ball valve and the second three-way ball valve are both pneumatic ball valves.
Compared with the prior art, the utility model has the following technical effects:
when the liquid level of the first separating cylinder reaches the low liquid level of the liquid level meter, the PLC receives a signal to control the pneumatic ball valve to enable the liquid inlet to be connected with the first separating cylinder and the liquid outlet to be connected with the second separating cylinder, and at the moment, the first separating cylinder is a metering cylinder and the second separating cylinder is a liquid outlet; when the liquid level in the first separating cylinder reaches a high liquid level, the PLC receives a signal to control the pneumatic ball valve to enable the liquid inlet to be connected with the second separating cylinder and enable the liquid outlet to be connected with the first separating cylinder, at the moment, the second separating cylinder is a metering cylinder, the first separating cylinder is a liquid discharging cylinder, the circular metering is carried out, the metering result is accurate, and the metering process is simple and convenient; the oil is metered without a flowmeter, and a positive displacement metering mode is adopted, so that the adaptability to an oil well is high; the whole structure of the utility model adopts a skid-mounted design, and the occupied area is small. The utility model has simple and convenient later maintenance of the structure, and when the maintenance is needed, the valve of the oil inlet is closed, the metering is stopped, and then corresponding maintenance measures can be adopted for maintenance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a single well wellhead separation metering device of the present invention;
FIG. 2 is a side view of the single well wellhead separation metering device of the present invention;
FIG. 3 is a top view of the single well wellhead separation metering device of the present invention;
wherein, 100 is single well head separation metering device, 1 is first separator, 2 is the second separator, 3 is the base, 4 is first tee bend ball valve, 5 is the second tee bend ball valve, 6 is the inlet, 7 is the liquid outlet, 8 is intelligent level gauge, 9 is the gas phase pipeline, 10 is the gas flowmeter, 11 is the blow off pipe, 12 is the funnel that adds water.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The utility model aims to provide a single-well wellhead separation metering device, which solves the problems in the prior art, and has the advantages of simple structure, convenience in maintenance, convenience in metering mode and accurate metering result.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Referring to fig. 1-3, the utility model provides a single-well wellhead separation metering device 100, which comprises a first separation cylinder 1 and a second separation cylinder 2 which are symmetrically arranged and have the same structure, wherein the first separation cylinder 1 and the second separation cylinder 2 are cylindrical structures, cylindrical bases 3 are arranged at the bottoms of the first separation cylinder 1 and the second separation cylinder 2, and the bases 3 are hollow and communicated with the interiors of the separation cylinders; the first separation cylinder 1 is communicated with a base 3 at the bottom of the second separation cylinder 2 through a pipeline, a first three-way ball valve 4 is arranged on the pipeline through which the first separation cylinder 1 is communicated with the base 3 at the bottom of the second separation cylinder 2, the upper parts of the first separation cylinder 1 and the second separation cylinder 2 are communicated through a pipeline, a second three-way ball valve 5 is arranged on the pipeline through which the upper parts of the first separation cylinder 1 and the second separation cylinder 2 are communicated, the second three-way ball valve 5 is communicated with a liquid inlet 6, and the first three-way ball valve 4 is communicated with a liquid outlet 7; the bases 3 at the bottoms in the first separating cylinder 1 and the second separating cylinder 2 are respectively provided with a water storage bag, the outer sides of the first separating cylinder 1 and the second separating cylinder 2 are respectively provided with an intelligent liquid level meter 8, the bottom of each intelligent liquid level meter 8 is communicated with the corresponding water storage bag, and the top of each intelligent liquid level meter 8 is communicated with the upper part of the corresponding separating cylinder; the intelligent liquid level meter 8 is communicated with a controller, the controller is electrically connected with the first three-way ball valve 4 and the second three-way ball valve 5, and the controller is a PLC (programmable logic controller); the tops of the two separation cylinders are communicated through a gas phase pipeline 9, and a gas flowmeter 10 is arranged on the gas phase pipeline 9 positioned at the top of the separation cylinders.
Further preferably, the side wall of the base 3 is communicated with a sewage discharge pipe 11, and the sewage discharge pipe 11 is provided with a valve. The outer side of the base 3 is provided with a water adding funnel 12 with an upward opening, the bottom of the water adding funnel 12 is communicated with the water storage bag, and the water adding funnel 12 is provided with a control valve. The two ends of a pipeline which is communicated with the upper part of the separation barrel are communicated with the first separation barrel 1 and the second separation barrel 2 along the tangential direction of the barrel wall of the first separation barrel 1 and the second separation barrel 2 respectively, so that crude oil enters the separation barrel through the liquid inlet 6 along the tangential direction of the barrel wall, a high-speed rotating flow field can be formed due to the fact that liquid has certain pressure, a cyclone effect is generated, a liquid phase forms an inverted conical vortex surface under the centrifugal force, gravity and buoyancy effects, the liquid phase with high density flows to the bottom along the barrel wall of the separation barrel, and the gas phase with low density rises to the top of the separation barrel along the center of the vortex, so that the separation of the liquid phase and the gas phase is realized. The first three-way ball valve 4 and the second three-way ball valve 5 are both pneumatic ball valves.
When the separator works for the first time, one end of the second three-way ball valve 5 close to the first separating cylinder 1 is controlled to be opened, so that the liquid inlet 6 is communicated with the first separating cylinder 1 through a pipeline, and the liquid inlet 6 is not communicated with the second separating cylinder 2; and opening one end of the first three-way ball valve 4 close to the second separating cylinder 2 to enable the liquid outlet 7 to be communicated with the second separating cylinder 2 through a pipeline, and simultaneously, the liquid outlet 7 is not communicated with the first separating cylinder 1. At the moment, the first separating cylinder 1 is a metering cylinder, the second separating cylinder 2 is a liquid discharging cylinder, crude oil enters the first separating cylinder 1 through the liquid inlet 6, a liquid phase with high density flows downwards to the bottom of the first separating cylinder 1 under the action of cyclone, and gas with low density rises to the top of the first separating cylinder 1 along the center, so that gas-liquid two-phase separation is realized. The gas flow meter 10 at top measures through the gas flow meter that rises, and the liquid phase extrusion water storage package of lower part, intelligent level gauge 8 link to each other with the water storage package that closes on mutually separately, and the water in the water storage package is through the extrusion water storage to the liquid phase, and then makes the water level of the intelligent level gauge 8 of water storage package intercommunication in with first separator 1 rise, highly adopts the volume of volume method measurement fluid through intelligent level gauge 8. The water rises in the intelligent liquid level meter to achieve the purpose of metering. Meanwhile, the upper gas enters the second separation cylinder 2 used as a liquid discharge cylinder at the moment after being metered, oil liquid in the second separation cylinder 2 flows downwards through a pipeline to the first three-way ball valve 4 under the action of gas pressure and finally flows out through the liquid outlet 7, when the liquid level in the intelligent liquid level meter 8 on one side of the first separation cylinder 1 rises to a set height, metering is completed, the controller receives a signal and controls the second three-way ball valve 5 to open one end close to the second separation cylinder 2 and close one end close to the first separation cylinder 1; opening one end of a first three-way ball 4 valve close to the first separating cylinder 1, closing one end close to the second separating cylinder 2, taking the second separating cylinder 2 as a metering cylinder, taking the first separating cylinder 1 as a liquid discharging cylinder, continuously carrying out oil liquid metering in the second separating cylinder 2, repeating the metering process, and carrying out circular metering in this way. The sewage disposal is carried out by manually opening a valve through a sewage disposal pipe 11 at the bottom of the device according to actual conditions to carry out irregular sewage disposal; water is added into the water storage bag through a water adding funnel 12 according to the requirement.
In the description of the present invention, it should be noted that the terms "center", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The principle and the implementation mode of the utility model are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the utility model; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the utility model.
Claims (6)
1. The utility model provides a single well wellhead separation metering device which characterized in that: the device comprises two separating cylinders which are symmetrically arranged, wherein the bottoms and the upper parts of the two separating cylinders are respectively communicated through pipelines, the pipelines at the bottoms and the upper parts of the separating cylinders are respectively provided with a three-way ball valve, the three-way ball valve at the upper part is communicated with a liquid inlet, and the three-way ball valve at the bottom is communicated with a liquid outlet; a water storage bag is arranged at the bottom in the separating cylinder, an intelligent liquid level meter is arranged on the outer side of the separating cylinder, the bottom of the intelligent liquid level meter is communicated with the water storage bag, and the top of the intelligent liquid level meter is communicated with the upper part of the separating cylinder; the intelligent liquid level meter is communicated with a controller, and the controller is electrically connected with the three-way ball valve; the top parts of the two separating cylinders are communicated through a gas phase pipeline, and a gas flowmeter is arranged on the gas phase pipeline positioned at the top part of the separating cylinder.
2. The single well wellhead separation metering device of claim 1, wherein: the separation cylinder is of a cylindrical structure, a cylindrical base is arranged at the bottom of the separation cylinder, the base is hollow and is communicated with the inside of the separation cylinder; the separation cylinders are respectively a first separation cylinder and a second separation cylinder which have the same structure, and the three-way ball valves are respectively a first three-way ball valve and a second three-way ball valve which have the same structure; the first separation barrel is communicated with a base at the bottom of the second separation barrel through a pipeline, a first three-way ball valve is arranged on the pipeline communicated with the base at the bottom of the second separation barrel, the upper parts of the first separation barrel and the second separation barrel are communicated through a pipeline, a second three-way ball valve is arranged on the pipeline communicated with the upper parts of the first separation barrel and the second separation barrel, the second three-way ball valve is communicated with a liquid inlet, and the first three-way ball valve is communicated with a liquid outlet; the water storage bag is arranged in the base.
3. The single well wellhead separation metering device of claim 2, wherein: the side wall of the base is communicated with a drain pipe, and a valve is arranged on the drain pipe.
4. The single well wellhead separation metering device of claim 2, wherein: the base outside is provided with the ascending funnel that adds water of opening, add water funnel bottom with the water storage package intercommunication, just it is provided with the control valve on the funnel to add water.
5. The single well wellhead separation metering device of claim 2, wherein: two ends of a pipeline communicated with the upper part of the separation barrel are respectively communicated with the first separation barrel and the second separation barrel along the tangential direction of the barrel walls of the first separation barrel and the second separation barrel.
6. The single well wellhead separation metering device of claim 2, wherein: and the first three-way ball valve and the second three-way ball valve are pneumatic ball valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121924113.2U CN215332799U (en) | 2021-08-17 | 2021-08-17 | Single well mouth separation metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121924113.2U CN215332799U (en) | 2021-08-17 | 2021-08-17 | Single well mouth separation metering device |
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| Publication Number | Publication Date |
|---|---|
| CN215332799U true CN215332799U (en) | 2021-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121924113.2U Active CN215332799U (en) | 2021-08-17 | 2021-08-17 | Single well mouth separation metering device |
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| CN (1) | CN215332799U (en) |
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2021
- 2021-08-17 CN CN202121924113.2U patent/CN215332799U/en active Active
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