CN2695923Y - Oil gas automatic metering installation - Google Patents
Oil gas automatic metering installation Download PDFInfo
- Publication number
- CN2695923Y CN2695923Y CN 200420041937 CN200420041937U CN2695923Y CN 2695923 Y CN2695923 Y CN 2695923Y CN 200420041937 CN200420041937 CN 200420041937 CN 200420041937 U CN200420041937 U CN 200420041937U CN 2695923 Y CN2695923 Y CN 2695923Y
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- gas
- oil gas
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Abstract
The utility model relates to an automatic oil gas metering device which comprises an oil gas separation pot, an oil gas stabilization pot and a float regulating valve, wherein the upper part of the oil gas separation pot is connected with an oil gas inlet pipe. A centrifugal gas liquid separator is arranged at the connection part of the oil gas separation pot and the oil gas inlet pipe; the lower part of the separator is provided with a gas liquid separation screen. The upper part and the lower part of the oil gas separation pot are connected with the upper part and the lower part of the oil gas stabilization pot; the upper and the lower parts of the oil gas stabilization pot are respectively provided with an air exhaust pipe and a liquid drain pipe; the air exhaust pipe and the liquid drain pipe are confluent and are connected with an oil gas outlet tube. A gas metering instrument is arranged on the air exhaust pipe; a liquid flow meter and an oil gas water analyzer are arranged on the liquid drain pipe. The float regulating valve is arranged in the oil gas stabilization pot to control the gas and liquid flow-rate of the oil gas stabilization pot, and is communicated with the air exhaust pipe. The utility model has the advantages of simple structure, small volume, high phase separation measurement accuracy, no need of an electric control auxiliary system when running, and little pressure loss, and is suitable for metering automatic phase separation of a plurality of flow type oil gas of individual wells, oil gas mixed transmission, etc. on line.
Description
Technical field
The utility model relates to a kind of petroleum metering device, the especially self-measuring device of profit gas three-phase flow.
Background technology
Existing oil gas metering technology can be divided into two classes, and the one, the gas-oil separation metering is promptly carried out the phase-splitting metering with separation vessel to the oil gas mixed liquor again after gas-liquid separation; The 2nd, the polyphasic flow metering, promptly oil gas does not separate direct metering.For existing separate measurement technology, generally all form by the supporting auxiliary control survey system of bulky vertical or horizontal separator, take up room big, the metering link is many, efficient is low, cost is high, safety in operation difference etc., especially is not suitable for the oil gas metering in small oil field, Desert Oilfields and offshore oilfield are exploited; For Multiphase Fluid Measurement Technology, commercial polyphasic flow product now still seldom, and for the complex characteristics of hydrocarbon fluids state, prior art has certain limitation, its measurement range and precision also have sizable gap apart from practical application.
Summary of the invention
The purpose of this utility model is to provide a kind of oil gas self-measuring device in order to overcome shortcoming of the prior art and limitation; This measuring apparatus is simple in structure, volume is little, individual phase measurement degree of accuracy height; Need not automatically controlled backup system during operation, the pressure loss is little; Be applicable to the automatic phase-splitting on-line metering of oil gas of multiple flow patterns such as individual well, oil and gas multiphase flow.
The purpose of this utility model can realize by following measure:
A kind of oil gas self-measuring device comprises:
Catch pot, its top links to each other with the oil and gas import pipe, is being provided with the gas-liquid centrifugal separator with this oil and gas import pipe connecting place, is provided with the gas-liquid separation sieve in the bottom of this separation vessel;
Oil gas stable can, its upper and lower link to each other with the upper and lower of catch pot with liquid discharge tube by gas outlet pipe respectively; Top at this oil gas stable can is provided with gas outlet, and the bottom is provided with discharging tube, and wherein gas outlet confluxes with discharging tube and links to each other with the oil gas vent pipe; On this gas outlet, be provided with gas meter; On this discharging tube, be provided with liquid flowmeter and oil gas and water analysis instrument;
The float variable valve is located at this oil gas stable can inside, the gas flow on this oil gas stable can top of may command and the fluid flow of bottom, and be connected with this gas outlet.
According to above-mentioned conception, this float variable valve comprises:
Valve body, the one end is a valve seat, the other end is provided with retaining ring;
Spool is located in this valve body;
Connecting rod passes this retaining ring, and the one end links to each other with this spool, and the other end links to each other with a float;
Gas outlet tube links to each other with this valve seat, and is communicated with this gas outlet.
According to above-mentioned conception, this valve seat and this spool are smooth sphere shape, isosceles trapezoid or the triangle that cooperatively interacts.
According to above-mentioned conception, this float variable valve also comprises a variable valve pillar, is located at outside this valve seat and the gas outlet tube.
According to above-mentioned conception, this float variable valve also comprises a mounting flange, and this mounting flange links to each other with this variable valve pillar and links to each other with this gas outlet tube outer wall.
According to above-mentioned conception, described gas-liquid separation sieve is horn-like, establishes mesh on its loudspeaker face, establishes center pit on the loudspeaker vertex of a cone, and the diameter of its center pit is greater than the diameter of the mesh diameter less than this oil and gas import pipe.
According to above-mentioned conception, this device also comprises the gas channeling ring, is located in this oil gas stable can should the gas outlet pipe place, and this gas channeling ring is hollow tube-shape, and is concentric with the oil gas stable can.
According to above-mentioned conception, this device also comprises the guiding fluid ring, is located in this oil gas stable can should the liquid discharge tube place, and this guiding fluid ring is hollow tube-shape, and is concentric with the oil gas stable can.
According to above-mentioned conception, this device also comprises pressure unit and temperature transmitter, all is located on escape pipe and the oil gas stable can.
According to above-mentioned conception, this device also comprises a retaining valve, is located on the oil gas vent pipe, to prevent the mixed oil liquid reversed flow of oil gas vent pipe.
The utility model has following advantage compared to existing technology:
1, measuring accuracy height of the present utility model, design profit gas phase-splitting measuring accuracy can reach ± more than 2%, reality can reach ± 3% in, and repeatability, good reliability.
2, the measuring channel flow velocity upper limit of the present utility model can reach more than 3.5 meter per seconds good linearity.
3, the utility model is simple in structure: inner no-rotary part and auxiliary electric-control system, and the total system pressure loss is little;
4, little, in light weight, the dismounting of volume of the present utility model convenient save time, keep in repair easy.
5, measuring accuracy of the present utility model is not influenced by oil gas flow pattern and fluid state, need not straight length; Applicable media range of viscosities wide (thin oil, heavy oil etc.).
6, the utility model is highly suitable for installing and using in the unmanned environment in desert, ocean, high and cold oil field.
Description of drawings
Fig. 1 is a front elevation of the present utility model
Fig. 2 a, Fig. 2 b are the structural representations of gas-liquid separation sieve of the present utility model
Fig. 3 is a float variable valve structural representation of the present utility model
Fig. 4 a, Fig. 4 b are gas channeling ring structure synoptic diagram of the present utility model
Fig. 5 a, Fig. 5 b are floater guiding device structural representations of the present utility model
Drawing is described as follows:
1-oil and gas import pipe 2-gas-liquid separation sieve 211-mesh 212-center pit
3-gas-liquid centrifugal separator 4-catch pot 5-gas outlet pipe 6-gas channeling ring
7-oil gas stable can 8-float variable valve
81-mounting flange 82-variable valve pillar 83-gas outlet tube 84-valve body
85-retaining ring 86-float link rod 87-float 88-spool 89-valve seat
9-liquid discharge tube 10-top end cover 11-gas vent valve 12-floater guiding device
13-guiding fluid ring 14-liquid outlet valve 15-liquid flowmeter 16-profit gas analyser
17-retaining valve 18-gas meter 19-separation vessel base 20-stable can base
21-measuring apparatus base 22-oil gas vent pipe 23-pressure unit 24-temperature transmitter
25-blowoff valve 26-gas outlet 27-discharging tube
Embodiment
With reference to Fig. 1, the oil gas mixed liquor enters catch pot 4 by oil and gas import pipe 1 (tangentially), realize the gas-liquid initial gross separation by centrifugal separator 3, the air containing fluid that separates through separation vessel 3 sieves on 2 to gas-liquid separation unrestrained under the effect of gravity (and centrifugal force), through the sub-sieve of gas-liquid separation sieve, the free gas in the oil gas mixed liquor that pipeline comes can reach fully and separate.
With reference to Fig. 2 a, Fig. 2 b, gas-liquid separation sieve 2 is (loudspeaker) equilateral triangle structure, and level places the middle and upper part in the catch pot 4, convex surface upwards, convex surface and separating tank 4 sections (surface level) angle θ are covered with mesh 211 less than 90 ° on the convex surface, so that increase liquid gas release surface; The external diameter of bolter 2 its objective is in order to wander the liquid that gets off from bolter 2 to flow down along the separating tank inwall less than the internal diameter of separating tank 4, the interior a small amount of remaining gas of liquid is further separated out; Center pit 212 is big (less than the diameter of induction pipe 1), to guarantee the having separated gas upper reaches of separating out below bolter 2.
Separated gas enters the gas channeling ring 6 of oil gas stable can 7 internal upper parts through gas outlet pipe 5 (tangentially), and gas channeling ring 6 is concentric with stable can 7 main bodys, and opening upwards is hollow tube-shape; Its objective is separation and adjusting pulsation air inlet in order to contain liquid in the gas; The separated liquid of hatching gas of containing enters the guiding fluid ring 13 of bottom in the oil gas stable can 7 through liquid discharge tube 9 (tangentially), guiding fluid ring 13 is concentric with stable can 7, opening upwards, to the disturbance of float, also can centrifuging partly hatch gas simultaneously when its objective is for fear of pulsation feed liquor and feed liquor.
Stable can 7 is made up of can body, top end cover 10, float variable valve 8, gas vent valve 11, liquid outlet valve 14 and blowoff valve 25 etc.: top end cover 10 is fixed by bolts to the can body top, and float variable valve 8 is fixed on the top end cover 10 by mounting flange 81; The outlet of float variable valve 8 links to each other with gas outlet 26 with gas vent valve 11, after gas meter 18, single-phase valve 17 link to each other with oil gas vent pipe 22; One sewage draining exit and liquid outlet are arranged at stable can 7 bottoms, and liquid outlet is located at the stable can bottom, behind outlet valve 14 and discharging tube 27 and the liquid flowmeter 15 that links to each other, profit gas component instrument 16 and the tracheae congruence flow to single-phase valve 17 and oil gas vent pipe 22.
With reference to Fig. 3, float variable valve 8 is formed by being connected and fixed flange 81, variable valve pillar 82, gas outlet tube 83, valve body 84, retaining ring 85, connecting rod 86, float 87, spool 88, valve seat 89, valve body 84 is connected with gas outlet tube 83 smooth transition with valve seat 89, valve seat 89, valve seat 89 and spool 88 can be smooth sphere shape, isosceles trapezoid or triangle (valve-seat diameter is greater than spool, and valve core diameter is greater than gas outlet tube); Valve body 84 inner chambers are isosceles trapezoid (tubaeform), and endpiece is little, entrance point is big, and endpiece is connected with valve seat 89 smooth transition, and entrance point is equipped with connecting rod retaining ring 85 in case connecting rod 86 and float 87 swing; Connecting rod 86 passes retaining ring 85, and connecting rod 86 two connect float 87, spool 88 respectively; Float 87 places in the floater guiding device 12 in the stable can 7, and under buoyancy function with the tank level fluctuation and in floater guiding device 12, fluctuate; Spool 88 places in the valve body 84, but and easy on and off action, the level fluctuation of stable can 7 acts on spools 88 knee-action in valve body 84 by float 87 by connecting rod 86, with the free area of adjustments of gas outlet, reach in the automatic adjusting stable can and the pressure reduction between the outlet and the size of liquid outlet flow.Wherein mounting flange 81 links to each other with variable valve pillar 82 and is fixing with gas outlet tube 83.Described gas outlet tube 83 links to each other with gas outlet 26.
Floater guiding device 12 is for placing in the stable can 7 and concentric pipe section, the pipe section is straight-through up and down, caliber is greater than float 87 diameters, side tube wall perforate becomes net form, to guarantee the liquid level unanimity inside and outside the pipe, the pipe segment length to be being good greater than float maximum float amplitude on liquid level, and the purpose that is provided with of floater guiding device 12 is that restriction float 87 swings when liquid level rises or descend and influences the stable control of liquid level.
The utility model adopts effective combination of separating tank and stable can to satisfy separating fully of free gas in the pipe oil gas mixed liquor, adopt the float variable valve to utilize the liquid level height directly to control the flow of gas discharge and the flow that indirect controlling liquid is discharged, realized automatic control liquid level and pressure reduction; Its principle of work is: profit gas mixed liquor is realized the gas-liquid initial gross separation via catch pot 4, enter the oil gas stable can through separation vessel 4 gas separated through gas outlet tube and gas guide ring, the liquid that contains a small amount of hatching gas that separates enters the oil gas stable can through liquid outlet tube and guiding fluid ring, before the normal liquid level of stable can is not set up, separate the gas that enters stable can 7 through separation vessel 4, from without hindrance discharge between float valve body 84 inner chambers opened and the spool 88.When rising to the range of adjustment lower limit gradually and continue, the liquid level of stable can 7 rises, float 87 drivening rods 86 and spool 88 begin to rise, the slit begins to reduce between valve body 84 inner chambers and the spool 88, the gas discharge rate reduces, the jar internal pressure reaches and the differential pressure of oil gas vent pipe 22 rises gradually, after reaching the required pressure reduction of discharge opeing, gas and liquid are discharged stable can 7 respectively, and liquid level will be controlled in the altitude range of design code.After this, if the gas liquid ratio of the oil gas mixed liquor that pipeline comes and efflux line pressure variations, cause the rising or the decline of liquid level in the stable can, float variable valve 8 is under the effect of float 87 drivening rods 86 and spool 88, the capital is controlled at pressure reduction on the required numerical value of discharge opeing automatically, and liquid level is controlled in the scope of design.Gas meter, liquid flowmeter, profit gas component instrument and temperature, pressure transmitter are installed respectively behind the stable can gas liquid outlet, and with the supporting use of computer system, form the on-line metering device of the complete oil and gas multiphase flow fluid of a cover.
Claims (10)
1, a kind of oil gas self-measuring device is characterized in that comprising:
Catch pot, its top links to each other with the oil and gas import pipe, is being provided with the gas-liquid centrifugal separator with this oil and gas import pipe connecting place, is provided with the gas-liquid separation sieve in the bottom of this separation vessel;
Oil gas stable can, its upper and lower link to each other with the upper and lower of catch pot with liquid discharge tube by gas outlet pipe respectively; Top at this oil gas stable can is provided with gas outlet, and the bottom is provided with discharging tube, and wherein gas outlet confluxes with discharging tube and links to each other with the oil gas vent pipe; On this gas outlet, be provided with gas meter; On this discharging tube, be provided with liquid flowmeter and oil gas and water analysis instrument;
The float variable valve is located at this oil gas stable can inside, the gas flow on this oil gas stable can top of may command and the fluid flow of bottom, and be connected with this gas outlet.
2, oil gas self-measuring device as claimed in claim 1 is characterized in that this float variable valve comprises:
Valve body, the one end is a valve seat, the other end is provided with retaining ring;
Spool is located in this valve body;
Connecting rod passes this retaining ring, and the one end links to each other with this spool, and the other end links to each other with a float;
Gas outlet tube links to each other with this valve seat, and is communicated with this gas outlet.
3, oil gas self-measuring device as claimed in claim 2 is characterized in that this valve seat and this spool are smooth sphere shape, isosceles trapezoid or the triangle that cooperatively interacts.
4, oil gas self-measuring device as claimed in claim 2 is characterized in that this float variable valve also comprises a variable valve pillar, is located at outside this valve seat and the gas outlet tube.
5, oil gas self-measuring device as claimed in claim 4 is characterized in that this float variable valve also comprises a mounting flange, and this mounting flange links to each other with this variable valve pillar and links to each other with this gas outlet tube outer wall.
6, oil gas self-measuring device as claimed in claim 1, it is characterized in that described gas-liquid separation sieve is horn-like, establish mesh on its loudspeaker face, establish center pit on the loudspeaker vertex of a cone, the diameter of its center pit is greater than the diameter of the mesh diameter less than this oil and gas import pipe.
7, oil gas self-measuring device as claimed in claim 1 is characterized in that this device also comprises the gas channeling ring, is located in this oil gas stable can should the gas outlet pipe place, and this gas channeling ring is hollow tube-shape, and is concentric with the oil gas stable can.
8, oil gas self-measuring device as claimed in claim 1 is characterized in that this device also comprises the guiding fluid ring, is located in this oil gas stable can should the liquid discharge tube place, and this guiding fluid ring is hollow tube-shape, and is concentric with the oil gas stable can.
9, oil gas self-measuring device as claimed in claim 1 is characterized in that this device also comprises pressure unit and temperature transmitter, all is located on the escape pipe.
10, oil gas self-measuring device as claimed in claim 1 is characterized in that this device also comprises a retaining valve, is located on the oil gas vent pipe, to prevent the mixed oil liquid reversed flow of oil gas vent pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420041937 CN2695923Y (en) | 2004-05-14 | 2004-05-14 | Oil gas automatic metering installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420041937 CN2695923Y (en) | 2004-05-14 | 2004-05-14 | Oil gas automatic metering installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2695923Y true CN2695923Y (en) | 2005-04-27 |
Family
ID=34774707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420041937 Expired - Lifetime CN2695923Y (en) | 2004-05-14 | 2004-05-14 | Oil gas automatic metering installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2695923Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100483079C (en) * | 2004-05-14 | 2009-04-29 | 寿焕根 | Device for automatic measuring oil and gas |
| CN103835697A (en) * | 2012-11-22 | 2014-06-04 | 上海一诺仪表有限公司 | Single-well and three-phase metering device |
| CN108017033A (en) * | 2016-10-28 | 2018-05-11 | 株式会社龙野 | Refueling device |
-
2004
- 2004-05-14 CN CN 200420041937 patent/CN2695923Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100483079C (en) * | 2004-05-14 | 2009-04-29 | 寿焕根 | Device for automatic measuring oil and gas |
| CN103835697A (en) * | 2012-11-22 | 2014-06-04 | 上海一诺仪表有限公司 | Single-well and three-phase metering device |
| CN108017033A (en) * | 2016-10-28 | 2018-05-11 | 株式会社龙野 | Refueling device |
| CN108017033B (en) * | 2016-10-28 | 2021-06-11 | 株式会社龙野 | Oil filling device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20090429 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |