CN210343326U - Weighing type single-well three-phase flow metering device - Google Patents
Weighing type single-well three-phase flow metering device Download PDFInfo
- Publication number
- CN210343326U CN210343326U CN201920775584.8U CN201920775584U CN210343326U CN 210343326 U CN210343326 U CN 210343326U CN 201920775584 U CN201920775584 U CN 201920775584U CN 210343326 U CN210343326 U CN 210343326U
- Authority
- CN
- China
- Prior art keywords
- oil
- hydraulic cylinder
- reversing
- reversing valve
- metering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The utility model discloses a weighing type single-well three-phase flow metering device, which comprises a reversing hydraulic cylinder, wherein a first oil inlet and a second oil inlet are arranged above the cylinder body of the reversing hydraulic cylinder, a first oil outlet and a second oil outlet are arranged below the cylinder body, and a first oil passing port and a second oil passing port which are respectively communicated with the outlet and the inlet of a metering hydraulic cylinder through hoses are arranged on the side wall of the cylinder body; a reversing valve shaft is arranged in the reversing hydraulic cylinder, one end of the reversing valve shaft is connected with a linear motor outside the reversing hydraulic cylinder through one end of the reversing hydraulic cylinder, and a first reversing valve piston, a second reversing valve piston and a third reversing valve piston are respectively arranged on the reversing valve shaft; an oil cylinder piston is arranged in the cylinder body of the metering hydraulic cylinder, and proximity switches are respectively arranged at two ends in the cylinder body of the metering hydraulic cylinder; and a balanced electronic scale is arranged below the metering hydraulic cylinder. The utility model discloses with low costs, simple structure, easy maintenance, can be in real time on-line measuring the gas-liquid ratio or the profit ratio in the fluid.
Description
Technical Field
The utility model relates to a fluid measurement technical field that weighs, concretely relates to weighing type single-well three-phase flow metering device.
Background
In the field of oil well metering, the metering mode of a metering station at the present stage mainly comprises a metering mode of simultaneously connecting a plurality of groups of standard units and a single metering station of a single well form of singly connecting an independent oil well, and in the actual work, the metering station of the single well form and the metering station of the multi-well form are mainly different in flow rate and flow rate, specifically, the metering mode can be different in counting weight, the single well form is low in relative weight load, the rated strength requirement of each part is low, the metering mode mainly adopts the mode of controlling the opening and closing of a metering container by using effective time, and then the flow rate and the flow rate in the unit are calculated, so that the integral flow rate and the flow rate of equipment are reversely pushed.
The current main metering means of the metering station are generally as follows: building a station, installing a large metering tank, connecting dozens of wells with the large tank through pipelines and valves, adjusting the valves to be communicated with certain wells, observing the full flow time of the large tank, and converting to determine the yield of the well. Flow metering vehicle metering method: the metering vehicle is moved to a certain well at intervals, gas and liquid generated by the metering vehicle are filled into a tank of the metering vehicle within a specified time, the gas and the liquid are separated by a gas and liquid separation method, the gas and the liquid are respectively metered, and then the single well yield is calculated. The measuring method of the amount and depth of the ruler stored in the tank comprises the following steps: the produced fluid flows directly into the production well of the storage tank, and the produced fluid depth is measured by a ruler to determine the yield. The three methods are indirect measurement except high cost, labor and time, and real-time online detection cannot be realized. Especially, the separate metering of gas and liquid is complicated in equipment and complicated in operation process.
Positive displacement flow measurement uses a fixed small volume to repeatedly meter the volume of fluid through a flow meter. Therefore, there must be a space within the volumetric flow meter that constitutes a standard volume, commonly referred to as the "metering space" or "metering chamber" of the volumetric flow meter. This space is formed by the inner wall of the meter housing and the rotating parts of the meter. The working principle of the positive displacement flowmeter is as follows: when fluid passes through the flowmeter, a certain pressure difference is generated between the inlet and the outlet of the flowmeter. The rotating part of the flowmeter (called rotor for short) rotates under the action of the pressure difference and discharges the fluid from the inlet to the outlet. In this process, the fluid fills the "metering volume" of the meter one time at a time and is then continuously sent to the outlet. The volume of the metering space is determined for a given flow meter, provided that the number of revolutions of the rotor is measured. A cumulative value of the volume of fluid passing through the meter is obtained.
In the prior art, the metering station has the problems that the metering station is single in function and can only meter single flow and flow rate, oil is doped with water and gas in a certain proportion, technicians find that relevant equipment capable of observing the oil-water proportion in real time does not exist in equipment at the current stage in the long-term working process, and the quality condition of finished products is not monitored by people. Although the metering method of the flow metering vehicle can be used for separately metering gas and liquid by loading the gas and the liquid into a metering vehicle tank and separating the gas and the liquid, the method has high cost and cannot realize real-time online detection.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a weighing type single-well three-phase flow metering device that has low cost, simple structure, easy maintenance and can detect the gas-liquid ratio or the oil-water ratio in the oil on line in real time, aiming at the defects of the prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a weighing type single-well three-phase flow metering device comprises a reversing hydraulic cylinder which is arranged in the middle of an oil path pipe and communicated with the oil path pipe, wherein a first oil inlet and a second oil inlet which are communicated with the oil path pipe at one end through a metering pipeline are arranged above a cylinder body of the reversing hydraulic cylinder, a first oil outlet and a second oil outlet which are communicated with the oil path pipe at the other end through the metering pipeline are arranged below the cylinder body of the reversing hydraulic cylinder, and a first oil passing port and a second oil passing port which are respectively communicated with an outlet and an inlet of the metering hydraulic cylinder through a hose are arranged on the side wall of the reversing hydraulic cylinder; a reversing valve shaft is arranged in the reversing hydraulic cylinder, one end of the reversing valve shaft is connected with a linear motor outside the reversing hydraulic cylinder through one end of the reversing hydraulic cylinder, and a first reversing valve piston, a second reversing valve piston and a third reversing valve piston for converting the direction of an oil path are respectively arranged on the reversing valve shaft; an oil cylinder piston is arranged in the cylinder body of the metering hydraulic cylinder, and proximity switches for sensing the position of the oil cylinder piston are respectively arranged at two ends in the cylinder body of the metering hydraulic cylinder; and a balanced electronic scale is arranged below the metering hydraulic cylinder.
Aiming at the technical characteristics, a reversing hydraulic cylinder is arranged in the middle of an oil pipeline, crude oil pumped by a pumping unit enters the reversing hydraulic cylinder through a metering pipeline positioned at the front end of the reversing hydraulic cylinder, a first reversing valve piston, a second reversing valve piston and a third reversing valve piston are controlled by a linear motor to form two oil loops for the reversing hydraulic cylinder, the crude oil enters the metering hydraulic cylinder through a hose from a first oil passing port or a second oil passing port through a first return path, the crude oil is positioned at one side of the oil cylinder piston, the oil cylinder piston moves forwards under the pushing of the crude oil, when the oil cylinder piston moves to the end part of a cylinder body of the metering hydraulic cylinder, a proximity switch senses the position of the metering hydraulic cylinder, a balanced electronic scale records the total weight of the metering hydraulic cylinder after peeling at the moment, and the crude oil positioned at the other side of the oil cylinder piston in the metering hydraulic cylinder enters the other oil loop in the reversing hydraulic cylinder through the hose and the, the oil pipe enters the oil pipe at the rear end of the metering pipe and finally enters the collecting tank for storage.
Preferably, the distance between the first reversing valve piston and the second reversing valve piston is equal to the distance between the first oil outlet and the second oil inlet; the distance between the second reversing valve piston and the third reversing valve piston is equal to the distance between the first oil inlet and the second oil outlet, and the distance between the first reversing valve piston and the third reversing valve piston is larger than the distance between the first oil outlet and the second oil outlet.
Preferably, the first oil passing port is located between the first oil inlet and the first oil outlet, and the second oil passing port is located between the second oil inlet and the second oil outlet.
The design enables the reversing hydraulic cylinder to form two oil loops, and the control and the conversion are convenient; when the second reversing valve piston blocks the first oil inlet, the third reversing valve piston blocks the second oil outlet, crude oil enters the metering hydraulic cylinder from the second oil inlet and the second oil passing port to push the oil cylinder piston to move forwards, and the crude oil on the other side of the oil cylinder piston is pushed into the hose on the other side, enters the reversing hydraulic cylinder through the first oil passing port and is discharged from the first oil outlet; when the second oil inlet is blocked by the second reversing valve piston, the first oil outlet is simultaneously blocked by the first reversing valve piston, at the moment, crude oil enters the communicated hoses through the first oil inlet and the first oil passing port and finally enters the metering hydraulic cylinder to push the oil cylinder piston to move forwards, and the crude oil on the other side of the oil cylinder piston is pushed into the hose on the other side and enters the reversing hydraulic cylinder through the second oil passing port to be discharged by the second oil outlet.
Preferably, a reversing valve sealing cover is arranged at the connecting end of the reversing hydraulic cylinder and the reversing valve shaft. The air tightness of the reversing hydraulic cylinder is increased, and the overflow of crude oil is avoided.
Preferably, the balanced electronic scale is located in the middle of the metering hydraulic cylinder. Increasing the accuracy of the measurement.
Preferably, a gas density analyzer is further arranged on the metering hydraulic cylinder. The method is used for measuring the density of the gas in the crude oil, and further obtaining the mass of the gas.
Preferably, the first direction valve piston, the second direction valve piston and the third direction valve piston are mounted concentrically with the direction valve shaft.
Preferably, the metering hydraulic cylinder is located below the reversing hydraulic cylinder. The flow of crude oil is facilitated by using the siphon principle.
The utility model has the advantages that:
the utility model discloses simple structure, the installation is convenient with the maintenance, and the detection mode is convenient, can realize online real-time supervision crude oil quality, and is low to workman horizontally requirement, and the oil control is with low costs, can obtain the profit ratio or the gas-liquid ratio in the crude oil then through weighing to crude oil, and it is convenient to measure, and the degree of accuracy is high.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: the hydraulic system comprises a reversing hydraulic cylinder 1, a metering hydraulic cylinder 2, a first oil inlet 3, a second oil inlet 4, a first oil outlet 5, a second oil outlet 6, a first oil passing port 7, a second oil passing port 8, a linear motor 9, a first reversing valve piston 10, a second reversing valve piston 11, a third reversing valve piston 12, a reversing valve shaft 13, a metering pipeline 14, a reversing valve sealing cover 15, a hose 16, an oil cylinder piston 17, a proximity switch 18 and a balanced electronic scale 19.
Detailed Description
The invention is further described with reference to the following figures and examples.
As shown in fig. 1, a weighing type single-well three-phase flow metering device comprises a reversing hydraulic cylinder 1 which is arranged in the middle of an oil path pipe and communicated with the oil path pipe, wherein a first oil inlet 3 and a second oil inlet 4 which are communicated with the oil path pipe at one end through a metering pipeline 14 are arranged above the cylinder body of the reversing hydraulic cylinder 1, a first oil outlet 5 and a second oil outlet 6 which are communicated with the oil path pipe at the other end through the metering pipeline 14 are arranged below the cylinder body, and a first oil passing port 7 and a second oil passing port 8 which are respectively communicated with an outlet and an inlet of the metering hydraulic cylinder 2 through a hose 16 are arranged on the side wall of the cylinder body; a reversing valve shaft 13 is arranged in the reversing hydraulic cylinder 1, one end of the reversing valve shaft 13 is connected with a linear motor 9 outside the reversing hydraulic cylinder through one end of the reversing hydraulic cylinder 1, a first reversing valve piston 10, a second reversing valve piston 11 and a third reversing valve piston 12 for converting the direction of an oil path are respectively arranged on the reversing valve shaft 13, and a reversing valve sealing cover 15 is arranged at the connecting end of the reversing hydraulic cylinder 1 and the reversing valve shaft 13; the distance between the first reversing valve piston 10 and the second reversing valve piston 11 is equal to the distance between the first oil outlet 5 and the second oil inlet 4; the distance between the second reversing valve piston 11 and the third reversing valve piston 12 is equal to the distance between the first oil inlet 3 and the second oil outlet 6, and the distance between the first reversing valve piston 10 and the third reversing valve piston 12 is greater than the distance between the first oil outlet 5 and the second oil outlet 6; the first oil passing opening 7 is located between the first oil inlet 3 and the first oil outlet 5, and the second oil passing opening 8 is located between the second oil inlet 4 and the second oil outlet 6.
The metering hydraulic cylinder 2 is positioned below the reversing hydraulic cylinder 1. A gas density analyzer (not shown, the gas density analyzer is an existing device) is further arranged on the metering hydraulic cylinder 2, a cylinder piston 17 is arranged in the cylinder body of the metering hydraulic cylinder 2, and proximity switches 18 for sensing the position of the cylinder piston 17 are respectively arranged at two ends in the cylinder body of the metering hydraulic cylinder 2; a balanced electronic scale 19 is arranged below the metering hydraulic cylinder 2, and the balanced electronic scale 19 is positioned in the middle of the metering hydraulic cylinder 2.
The first direction valve piston 10, the second direction valve piston 11 and the third direction valve piston 12 are mounted concentrically with the direction valve shaft 13.
The reversing hydraulic cylinder 1, the metering hydraulic cylinder 2 and the balance electronic scale 19 can be externally provided with a box body which is designed into a whole body and is convenient to move.
The linear motor 9, the two proximity switches 18 and the balanced electronic scale 19 are all electrically connected with an external controller through electric wires, the controller is in the prior art, and the connection mode and the working mode are all designed conventionally.
The utility model discloses a theory of operation: firstly, a first oil inlet 3 is blocked by a second reversing valve piston 11, a second oil outlet 6 is blocked by a third reversing valve piston 12, at the same time, a second oil inlet 4 and a second oil passing port 8 are opened, crude oil enters a metering hydraulic cylinder 2 from the second oil inlet 4 and the second oil passing port 8, the oil cylinder piston 17 is pushed to move rightwards under the action of the original oil pressure, the crude oil positioned on the right side of the oil cylinder piston 17 is pushed into a hose 16 communicated with the oil cylinder piston 17 and enters the reversing hydraulic cylinder 1 through the first oil passing port 7 and is discharged from the first oil outlet 5, when the oil cylinder piston 17 moves to the leftmost end, a corresponding proximity switch 18 positioned at the left end of the cylinder body transmits a sensed signal to a controller, and the controller starts a balanced electronic scale 19 to record the mixing mass Akg in the metering hydraulic cylinder 2 at the moment; then the controller starts the linear motor 9, so that the linear motor 9 drives the first, second and third reversing valve pistons to move rightwards, the second reversing valve piston 11 blocks the second oil inlet 4, the first reversing valve piston 10 simultaneously blocks the first oil outlet 5, at this time, crude oil enters the communicated hose 16 through the first oil inlet 3 and the first oil passing port 7, enters the metering hydraulic cylinder 2, pushes the oil cylinder piston 17 to move rightwards, the crude oil positioned on the right side of the oil cylinder piston 17 is pushed into the connected hose 16, enters the reversing hydraulic cylinder 1 through the second oil passing port 8, is discharged from the second oil outlet 6, when the oil cylinder piston 17 moves to the rightmost end, the corresponding proximity switch 18 positioned on the right end of the cylinder body transmits the sensed signal to the controller, and the controller starts the balanced electronic scale 19, so that the controller records the mixing mass Akg in the metering hydraulic cylinder 2 at this moment.
To explain further: the volume of the hydraulic cylinder with design quantity is 1L, the mass of gas is Mkg, the mass of liquid is Lkg, the mass of mixture is Akg, the gas proportion is X, and the liquid proportion is (1-X); wherein the gas mass is derived from a gas density analyzer;
according to the equation: MX + L (1-X) = A
Such as: the mass of the gas is 0.03kg, the mass of the liquid is 0.9kg, 0.03X +0.9 (1-X) = A is obtained, and then the gas-liquid ratio in the crude oil can be calculated through data recorded by a balanced electronic scale.
When no gas exists in the crude oil, the volume of the hydraulic cylinder with the design amount is 1L, the mass of water is 1kg, the mass of oil is 0.9kg, the mixed mass is Akg, the gas ratio is X, and the liquid ratio is (1-X);
according to the equation: x +0.9 (1-X) = a,
and the oil-water ratio in the crude oil can be calculated through the data recorded by the balanced electronic scale.
The apparatus elements referred to in the above embodiments are conventional apparatus elements unless otherwise specified, and the structural arrangements, operations, or controls referred to in the above embodiments are conventional in the art unless otherwise specified.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and other modifications or equivalent replacements made by the technical solutions of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.
Claims (8)
1. A weighing type single-well three-phase flow metering device is characterized by comprising a reversing hydraulic cylinder which is arranged in the middle of an oil path pipe and communicated with the oil path pipe, wherein a first oil inlet and a second oil inlet which are communicated with the oil path pipe at one end through a metering pipeline are arranged above the cylinder body of the reversing hydraulic cylinder, a first oil outlet and a second oil outlet which are communicated with the oil path pipe at the other end through the metering pipeline are arranged below the cylinder body of the reversing hydraulic cylinder, and a first oil passing port and a second oil passing port which are respectively communicated with an outlet and an inlet of the metering hydraulic cylinder through a hose are arranged on the side wall of the reversing hydraulic cylinder; a reversing valve shaft is arranged in the reversing hydraulic cylinder, one end of the reversing valve shaft is connected with a linear motor outside the reversing hydraulic cylinder through one end of the reversing hydraulic cylinder, and a first reversing valve piston, a second reversing valve piston and a third reversing valve piston for converting the direction of an oil path are respectively arranged on the reversing valve shaft; an oil cylinder piston is arranged in the cylinder body of the metering hydraulic cylinder, and proximity switches for sensing the position of the oil cylinder piston are respectively arranged at two ends in the cylinder body of the metering hydraulic cylinder; and a balanced electronic scale is arranged below the metering hydraulic cylinder.
2. The weighing-type single-well three-phase flow metering device according to claim 1, wherein the distance between the first reversing valve piston and the second reversing valve piston is equal to the distance between the first oil outlet and the second oil inlet; the distance between the second reversing valve piston and the third reversing valve piston is equal to the distance between the first oil inlet and the second oil outlet, and the distance between the first reversing valve piston and the third reversing valve piston is larger than the distance between the first oil outlet and the second oil outlet.
3. The weighing-type single-well three-phase flow metering device according to claim 1, wherein the first oil passing port is located between a first oil inlet and a first oil outlet, and the second oil passing port is located between a second oil inlet and a second oil outlet.
4. The weighing type single-well three-phase flow metering device as claimed in claim 1, wherein a reversing valve sealing cover is arranged at the connecting end of the reversing hydraulic cylinder and the reversing valve shaft.
5. The weighing-type single-well three-phase flow metering device according to claim 1, wherein the balanced electronic scale is located at a middle position of the metering hydraulic cylinder.
6. The weighing type single-well three-phase flow metering device as claimed in claim 1, wherein a gas density analyzer is further arranged on the metering hydraulic cylinder.
7. The weighing-type single-well three-phase flow metering device according to claim 1, wherein the first, second and third diverter valve pistons are mounted concentric with the diverter valve shaft.
8. The weighing-type single-well three-phase flow metering device according to claim 1, wherein the metering hydraulic cylinder is located below the reversing hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920775584.8U CN210343326U (en) | 2019-05-28 | 2019-05-28 | Weighing type single-well three-phase flow metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920775584.8U CN210343326U (en) | 2019-05-28 | 2019-05-28 | Weighing type single-well three-phase flow metering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210343326U true CN210343326U (en) | 2020-04-17 |
Family
ID=70183326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920775584.8U Expired - Fee Related CN210343326U (en) | 2019-05-28 | 2019-05-28 | Weighing type single-well three-phase flow metering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210343326U (en) |
-
2019
- 2019-05-28 CN CN201920775584.8U patent/CN210343326U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107083950B (en) | Calibration system and calibration method based on weighing type single well metering device | |
| CN102889906A (en) | Single-pipe gas relay detecting bench, centering clamping mechanism and detection method thereof | |
| CN105927210A (en) | Integral automatic well selection metering device and multi-process automatic oil well output metering method | |
| CN109403894A (en) | A kind of drilling well early stage overflow and leakage loss monitoring system | |
| CN103822672A (en) | Constant-volume tube piston type oil, gas and water three-phase flow meter on basis of gas and liquid pre-separation and measuring method | |
| CN204255413U (en) | A kind of gas field gas-liquid measuring apparatus | |
| CN210343326U (en) | Weighing type single-well three-phase flow metering device | |
| CN108730266B (en) | Device and method for measuring internal leakage of hydraulic cylinder | |
| CN201588624U (en) | Movable single well metering device for oil well | |
| CN107246259A (en) | Tubular type oil well gas-liquid two-phase flow meter and its measuring method | |
| CN102808609A (en) | U-shaped tubular single well producing rate metering device | |
| CN202836631U (en) | Single-pipe buchholz relay detecting platform and centring clamping mechanism special for buchholz relay detection | |
| CN211448657U (en) | Moisture content measuring instrument suitable for large-air-volume single well | |
| CN109403918B (en) | Horizontal well cementation displacement simulation test system | |
| CN207423293U (en) | Oil consumption computing device and engineering machinery | |
| CN112012717B (en) | Double-piston type liquid production metering device for oil well and metering method thereof | |
| CN205477586U (en) | Tubular oil well two -phase flow gauge | |
| CN210948637U (en) | Single-well metering device and single well | |
| CN210178342U (en) | Three-pressure-difference three-phase flowmeter for metering station | |
| CN205135600U (en) | High temperature saturation fluid measurement calibration device | |
| CN108843315B (en) | Sensing type comprehensive automatic metering device and oil quality calculation method | |
| CN109839154B (en) | Oil well metering system and method | |
| CN109403951B (en) | Three-phase metering integrated device for oil well | |
| CN207366385U (en) | A kind of full-automatic shale air content test system | |
| CN208921648U (en) | The electronic type oil-water ratio testing agency at volumetric metering station |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200417 Termination date: 20210528 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |