CN106150478A - The airtight accumulative gauging method and device of oil well two-phase - Google Patents
The airtight accumulative gauging method and device of oil well two-phase Download PDFInfo
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- CN106150478A CN106150478A CN201610525872.9A CN201610525872A CN106150478A CN 106150478 A CN106150478 A CN 106150478A CN 201610525872 A CN201610525872 A CN 201610525872A CN 106150478 A CN106150478 A CN 106150478A
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- 239000003129 oil well Substances 0.000 title claims abstract description 114
- 238000000034 method Methods 0.000 title claims abstract description 40
- 239000007791 liquid phase Substances 0.000 claims abstract description 193
- 239000012071 phase Substances 0.000 claims abstract description 190
- 239000007788 liquid Substances 0.000 claims abstract description 61
- 230000001413 cellular effect Effects 0.000 claims abstract description 46
- 238000005191 phase separation Methods 0.000 claims abstract description 9
- 238000007667 floating Methods 0.000 claims description 46
- 230000005484 gravity Effects 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 7
- 239000012535 impurity Substances 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 5
- 238000005259 measurement Methods 0.000 abstract description 21
- 230000001186 cumulative effect Effects 0.000 abstract description 19
- 238000000926 separation method Methods 0.000 abstract description 10
- 230000006978 adaptation Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 120
- 239000003921 oil Substances 0.000 description 26
- 238000004519 manufacturing process Methods 0.000 description 23
- 239000012530 fluid Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 10
- 238000009434 installation Methods 0.000 description 5
- 239000010779 crude oil Substances 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 4
- 230000002354 daily effect Effects 0.000 description 3
- 230000001788 irregular Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/34—Arrangements for separating materials produced by the well
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- Life Sciences & Earth Sciences (AREA)
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- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Measuring Volume Flow (AREA)
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Abstract
The present invention relates to a kind of airtight accumulative gauging method and device of oil well two-phase, described device includes: well head stoste input pipe, for the stoste input extremely airtight accumulative oil-measuring apparatus of described oil well two-phase extracting well head out；Cellular honeycombed separator, connects with well head stoste input pipe, for carrying out gas phase separation to stoste；Gas phase sluice valve, is arranged above cellular honeycombed separator, for feeding in gathering line through the isolated gas phase of cellular honeycombed separator is defeated；Liquid phase sluice valve, is arranged at below cellular honeycombed separator, for exporting to flowmeter through the isolated liquid phase of cellular honeycombed separator；Flowmeter, connects with liquid phase sluice valve, for liquid phase sluice valve output liquid phase measure, and will metering after liquid phase output to described enter gathering line.The present invention can be according to stoste situation self adaptation separation liquid and gas, and can effective cumulative measurement well oil output.
Description
Technical field
The present invention relates to field of petroleum machinery, particularly relate to a kind of airtight accumulative gauging method and device of oil well two-phase.
Background technology
During oil exploitation, accurately metering well yield is played to closing heavy to formulating scientific and reasonable oil well production scheme
The effect wanted.Owing to manufacturing parameters various in oil well production process are slowly dynamic changes, so only promptly and accurately adding up
The Liquid output situation of individual well, could promptly and accurately formulate effective oil well production scheme.One effective oil well is raw
Product scheme is to ensure that oilfield stable production, energy-saving and cost-reducing key.The output object of oil well is mixed by gas phase and liquid phase and forms, big absolutely portion
The production fluid dividing stripper well is interval (air-liquid irregular interval output).Current gauging method is time-consumingly shorter, by oil well
Output gases affect is bigger, it is impossible to accurately measure the oil production of oil well.
The metering of current produced liquid in oil well has 2 kinds of methods.
First volume pipe strapping.During metering, operator opens the air bleeding valve at the liquid feed valve bottom volume pipe and top,
Then Dose times is started.The change in elevation in view volume intraluminal fluid face after 3 hours, thus calculate the day production fluid of this well
Amount.Due to present stripper well irregular interval production fluid, the random gauging result in 3 hours can not represent this mouthful of well
Per day Liquid output.
It two is oil well two-phase strapping.Two-phase strapping itself can well measure the profit of liquid phase and good fluidity
Mixture.The liquid and gas mixture of oil well output is separated by the method, gas phase and liquid phase statistic flow respectively.In the short time
Carry out mixing output again after interior statistic flow.With problem identical above, stripper well production fluid is irregular, Chang Duotian not production fluid or one
Whole production fluids in it.It is thus impossible to the true production that reflection oil well is long-term.
Therefore, not yet there is one preferably oil well measurement method at present, oil well flow accurately can be measured, especially
It is that the long flow for oil well accurately measures.
Content of the invention
It is an object of the invention to provide a kind of simple in construction, self adaptation separation gas phase and liquid phase, can be to produced liquid in oil well phase
The oil well two-phase carrying out cumulative measurement adds up gauging method and device.
For solving above-mentioned technical problem, as one aspect of the present invention, provide oil well two-phase airtight accumulative gauging dress
Put, comprising:
Well head stoste input pipe, fills to the airtight accumulative gauging of described oil well two-phase for the stoste input extracting well head out
Put；
Cellular honeycombed separator, connects with described well head stoste input pipe, for carrying out gas phase separation to described stoste, wherein,
Described stoste includes at least one phase in oil, gas and water three-phase mixture；
Gas phase sluice valve, is arranged above described cellular honeycombed separator, and being used for will be through the isolated gas of described cellular honeycombed separator
Mutually defeated feed in gathering line；
Liquid phase sluice valve, is arranged at below described cellular honeycombed separator, for through the isolated liquid phase of described cellular honeycombed separator
Output is to flowmeter；
Flowmeter, connects with described liquid phase sluice valve, measures for the liquid phase exporting described liquid phase sluice valve, and
Will metering after liquid phase output to described enter gathering line.
Further, the airtight accumulative oil-measuring apparatus of oil well two-phase also includes filter, and one end is with described liquid phase sluice valve even
Logical, the other end connects with described flowmeter, for filtering the liquid phase of described liquid phase sluice valve input, filters off impurity, and
Liquid phase output after filtering is to described flowmeter.
Further, the liquid phase sluice valve of the airtight accumulative oil-measuring apparatus of oil well two-phase is additionally operable to:
When the floating drum of described liquid phase sluice valve is crossed in the non-submergence of the liquid level of described liquid phase, described liquid phase sluice valve is through weight
Power effect is closed mode；
When the floating drum of described liquid phase sluice valve is crossed in the liquid level submergence of described liquid phase, described liquid phase sluice valve is through described
The buoyancy of liquid phase in opened condition, exports described liquid phase to described flowmeter.
Further, the gas phase sluice valve of the airtight accumulative oil-measuring apparatus of oil well two-phase is additionally operable to:
When the floating drum of described gas phase sluice valve is crossed in the non-submergence of the liquid level of described liquid phase, described gas phase sluice valve is through weight
Power effect in opened condition, by described gas phase output to described enter gathering line；
When the floating drum of described gas phase sluice valve is crossed in the liquid level submergence of described liquid phase, described gas phase sluice valve is through described
The buoyancy of liquid phase is closed mode.
Further, the airtight accumulative oil-measuring apparatus of oil well two-phase also includes check valve, connects with described gas phase sluice valve, uses
In described gas phase sluice valve is exported gas phase output to described enter gathering line.
As another aspect of the present invention, provide a kind of airtight accumulative gauging method of oil well two-phase, comprising:
By the well head stoste input pipe in the airtight accumulative oil-measuring apparatus of described oil well two-phase, the stoste extracting well head out is defeated
Enter to the cellular honeycombed separator of the airtight accumulative oil-measuring apparatus of described oil well two-phase；
Utilize described cellular honeycombed separator to carry out gas phase separation to described stoste, and isolated gas phase, liquid phase are distinguished defeated
Going out to corresponding sluice valve, wherein, described stoste includes at least one phase in oil, gas and water three-phase mixture；
The gas phase sluice valve that utilization is arranged above described cellular honeycombed separator will be through the isolated gas of described cellular honeycombed separator
Mutually defeated feed in gathering line；
The liquid phase sluice valve that utilization is arranged at below described cellular honeycombed separator will be through the isolated liquid of described cellular honeycombed separator
Export mutually to flowmeter；
The liquid phase using flowmeter to export described liquid phase sluice valve is measured, and exports the liquid phase after metering to institute
State into gathering line.
Further, the airtight accumulative gauging method of oil well two-phase uses in the airtight accumulative oil-measuring apparatus of described oil well two-phase
The liquid phase that described liquid phase sluice valve is inputted by filter filters, and filters off impurity, and the liquid phase output after filtering is to described
Flowmeter.
Further, liquid phase in the airtight accumulative oil-measuring apparatus of oil well two-phase for the airtight accumulative gauging method of oil well two-phase
When the floating drum of described liquid phase sluice valve is crossed in the non-submergence of liquid level, utilizing Action of Gravity Field to make liquid phase sluice valve is closed mode,
When the floating drum of described liquid phase sluice valve is crossed in the liquid level submergence of the liquid phase in the airtight accumulative oil-measuring apparatus of oil well two-phase, utilize floating
Power effect makes liquid phase sluice valve in opened condition, and by described liquid phase output valve flowmeter.
Further, liquid phase in the airtight accumulative oil-measuring apparatus of oil well two-phase for the airtight accumulative gauging method of oil well two-phase
When the floating drum of described gas phase sluice valve is crossed in the non-submergence of liquid level, gravity is utilized to make gas phase sluice valve in opened condition, by described
Gas phase output to described enter gathering line, described gas phase is crossed in the liquid level submergence in the airtight accumulative oil-measuring apparatus of oil well two-phase
During the floating drum of sluice valve, utilizing buoyancy to make gas phase sluice valve is closed mode.
Further, the airtight accumulative gauging method of oil well two-phase uses in the airtight accumulative oil-measuring apparatus of described oil well two-phase
Check valve connects gas phase sluice valve, and feeds in gathering line by defeated for gas phase.
The airtight accumulative gauging method and device of oil well two-phase using the embodiment of the present invention to provide, can reach beneficial as follows
Effect:
In embodiments of the present invention, the crude oil using cellular honeycombed separator to input well head stoste input pipe separates, broken
The surface tension of bad free minute bubbles in the liquid phase, makes gas phase separate, and relies on gravitational difference to realize gas phase in knockout drum
With liquid phase secondary separation.After the floating drum of liquid phase sluice valve is crossed in liquid level submergence, the buoyancy by floating drum opens liquid sluice valve.
Meanwhile, gas phase sluice valve is in open mode by the gravity of floating drum.So far, present invention achieves gas phase and the liquid phase of stoste
Separate, solve oil well oil-producing statistics by the bigger problem of oil well output gases affect.Complete the gas phase to stoste and liquid phase
After separation, liquid phase enters the liquid phase of flow table entry cumulative measurement oil well output, the gas phase by open mode for the gas by filter
Sluice valve returns to export with sending it to oil-measuring apparatus and enters into ground transportation network.When whole aerogenesis in oil well a period of time, liquid level
Declining, liquid phase sluice valve is automatically switched off by the gravity of floating drum, and flowmeter stops metering, and gas continues the gas phase sluice valve from top
Flow out；When the whole production fluid of oil well in a period of time, liquid level constantly rises, and rises to certain altitude liquid phase sluice valve and opens, stream
Scale starts cummulative metering.When liquid level continues the floating drum rising submergence gas phase sluice valve, gas phase sluice valve under the effect of buoyancy
Closing, liquid phase cannot be introduced into the exit of metering device, can only enter gauge table by liquid phase sluice valve and participate in metering.Pass through
Said method, present invention achieves the cumulative measurement of liquid phase in stoste, solve at present have metering method cannot cumulative measurement
The problem of stoste amount of liquid phase.
So, whether output content from oil well is oil, gas and water three-phase, or single liquid phase or gas phase, can ensure oil well
Whole liquid phases of output can participate in metering, it is ensured that the reliability of produced liquid in oil well metering and accuracy.
Brief description
Fig. 1 shows the structural representation of the airtight accumulative oil-measuring apparatus of oil well two-phase according to an embodiment of the invention；
Fig. 2 shows the in-site installation schematic diagram of the airtight accumulative oil-measuring apparatus of oil well two-phase；And
Fig. 3 shows the process chart of the airtight accumulative gauging method of oil well two-phase.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail, but the present invention can be defined by the claims
Implement with the multitude of different ways covering.
The metering of extraction medium in oil well production process is the significant data of production management.Oil well produced medium be gas phase and
Liquid phase blending agent, and flow regime is complicated unstable.General measuring instrument cannot realize the direct metering of extraction medium,
There is the metering device cannot accurate statistics oil output per well for a long time.Therefore, a kind of small-sized integrated gas phase and liquid phase separation are designed, and
The device with cumulative statistics oil production function is the optimal solution solving oil well produced medium measurement problem.
For solving above-mentioned technical problem, embodiments provide a kind of airtight accumulative oil-measuring apparatus of oil well two-phase.Fig. 1
Show the structural representation of the airtight accumulative oil-measuring apparatus of oil well two-phase according to an embodiment of the invention.See Fig. 1, this oil
The airtight accumulative oil-measuring apparatus of well two-phase at least includes: well head stoste input pipe the 110th, cellular honeycombed separator the 120th, gas phase sluice valve is the 130th,
Liquid phase sluice valve 140 and flowmeter 150.
Wherein the annexation of each parts and concrete function see below description.
Well head stoste input pipe 110, inputs to the airtight accumulative oil-measuring apparatus of oil well two-phase for the stoste extracting well head out；
Cellular honeycombed separator 120, connects with well head stoste input pipe 110, for carrying out gas phase separation to stoste, wherein, former
Liquid includes at least one phase in oil, gas and water three-phase mixture；
Gas phase sluice valve 130, is arranged above cellular honeycombed separator 120, and being used for will be through the isolated gas of cellular honeycombed separator 120
Mutually defeated feed in gathering line；
Liquid phase sluice valve 140, is arranged at below cellular honeycombed separator 120, for through the isolated liquid phase of cellular honeycombed separator 120
Output is to flowmeter 150；
Flowmeter 150, connects with liquid phase sluice valve 140, for the liquid phase of liquid phase sluice valve 140 output is measured,
And feed in gathering line by defeated for the liquid phase after metering.
In embodiments of the present invention, the crude oil using cellular honeycombed separator to input well head stoste input pipe separates, broken
The surface tension of bad free minute bubbles in the liquid phase, makes gas phase separate, and relies on gravitational difference to realize gas phase in knockout drum
With liquid phase secondary separation.After the floating drum of liquid phase sluice valve is crossed in liquid level submergence, the buoyancy by floating drum opens liquid sluice valve.
Meanwhile, gas phase sluice valve is in open mode by the gravity of floating drum.So far, present invention achieves gas phase and the liquid phase of stoste
Separate, solve oil well oil-producing statistics by the bigger problem of oil well output gases affect.Complete the gas phase to stoste and liquid phase
After separation, liquid phase enters the liquid phase of flow table entry cumulative measurement oil well output, the gas phase by open mode for the gas by filter
Sluice valve returns to export with sending it to oil-measuring apparatus and enters into ground transportation network.When whole aerogenesis in oil well a period of time, liquid level
Declining, liquid phase sluice valve is automatically switched off by the gravity of floating drum, and flowmeter stops metering, and gas continues the gas phase sluice valve from top
Flow out；When the whole production fluid of oil well in a period of time, liquid level constantly rises, and rises to certain altitude liquid phase sluice valve and opens, stream
Scale starts cummulative metering.When liquid level continues the floating drum rising submergence gas phase sluice valve, gas phase sluice valve under the effect of buoyancy
Closing, liquid phase cannot be introduced into the exit of metering device, can only enter gauge table by liquid phase sluice valve and participate in metering.Pass through
Said method, present invention achieves the cumulative measurement of liquid phase in stoste, solve at present have metering method cannot cumulative measurement
The problem of stoste amount of liquid phase.
So, whether output content from oil well is oil, gas and water three-phase mixture, or single liquid phase or gas phase, Dou Nengbao
Whole liquid phases of card oil well output can participate in metering, it is ensured that the reliability of produced liquid in oil well metering and accuracy.
In order to the liquid phase cumulative measurement degree of accuracy is higher, the embodiment of the present invention uses filter 160 to connect liquid phase sluice valve 140
With flowmeter 150.Described filter 160 can filter the impurity in liquid phase, and the liquid phase after filtering exports to flowmeter, carries
The high flow capacity table metering liquid phase ground degree of accuracy, it is to avoid the impact on flow measurement for the impurity.
For the feature that adaptively oil-producing well average daily oil production average is low and variance is big, the liquid phase choosing in the embodiment of the present invention
Logical valve 140 possesses liquid level intelligent adaptive function.Described liquid phase sluice valve 140 can be excessively described in the non-submergence of liquid phase level height
During the floating drum of liquid phase sluice valve 140, rely on Action of Gravity Field to be closed mode, and described liquid can be crossed in liquid phase level height submergence
During the floating drum of phase sluice valve 140, liquid phase buoyancy is relied on to become open mode, and by the output of described liquid phase to described flowmeter 150.
For the feature that adaptively oil-producing well average daily oil production average is low and variance is big, the gas phase choosing in the embodiment of the present invention
Logical valve 130 is likewise supplied with liquid level intelligent adaptive function.When described gas phase sluice valve is crossed in the non-submergence of the liquid level of described liquid phase
130 floating drum when, the output of described gas phase through Action of Gravity Field in opened condition, is entered to collect defeated to described by described gas phase sluice valve 130
Pipeline；When the floating drum of described gas phase sluice valve 130 is crossed in the liquid level submergence of described liquid phase, described gas phase sluice valve 130 warp
The buoyancy of described liquid phase is closed mode.
For preventing gas phase from refluxing because of air pressure change, the embodiment of the present invention uses check valve 170 to connect gas phase sluice valve 130 He
Enter gathering line.Described check valve 170 for gas phase output that described gas phase sluice valve 130 is exported to described enter collector and delivery pipe
Line.
The embodiment of the present invention is the principle of the airtight accumulative oil-measuring apparatus of a kind of oil well two-phase of effective explanation, now provides a tool
The embodiment of body.
Embodiment one
In this embodiment, the structural representation of the airtight accumulative oil-measuring apparatus of oil well two-phase still refers to Fig. 1.This device includes:
Well head stoste input pipe the 110th, cellular honeycombed separator the 120th, gas phase sluice valve the 130th, liquid phase sluice valve the 140th, flowmeter the 150th, filter
160 and check valve 170.
As it is shown in figure 1, after the oil of oil well output, gas and water three-phase mixture enter the airtight accumulative oil-measuring apparatus of oil well two-phase,
First pass through cellular honeycombed separator 120.Cellular honeycombed separator 120 destroys the surface tension of free minute bubbles in the liquid phase, makes gas phase divide
Separate out.Again carry out gas-liquid two-phase separation by gravitational difference in knockout drum.When liquid phase sluice valve 140 is crossed in liquid level submergence
During floating drum, the buoyancy by floating drum opens liquid phase sluice valve 140.Meanwhile, gas phase sluice valve 130 is in by the gravity of floating drum and beats
Open state.At this moment, liquid phase enters the liquid phase of flow table entry 150 cumulative measurement output content from oil well through filter 160, and gas is by beating
The exit that the gas phase sluice valve 130 of open state is pooled to oil-measuring apparatus enters into ground transportation network.When oil well a period of time
During interior whole aerogenesis, liquid level declines, and liquid phase sluice valve 140 is automatically switched off by the gravity of floating drum, and flowmeter 150 stops measuring, gas
The gas phase sluice valve 130 that body continues from top flows out；When the whole production fluid of oil well in a period of time, liquid level constantly rises, and rises
Opening to certain altitude liquid phase sluice valve 140, flowmeter 150 starts cummulative metering.Liquid level continues to rise submergence gas phase sluice valve
130 floating drum when, under the effect of buoyancy, gas phase sluice valve 130 is closed, and liquid phase cannot be introduced into the exit of metering device, only
Flow table entry 150 can be entered by liquid phase sluice valve 140 and participate in metering.
So, whether output content from oil well is oil, gas and water three-phase, or single liquid phase or gas phase, can ensure oil well
Whole liquid phases of output can participate in metering, it is ensured that the reliability of produced liquid in oil well metering and accuracy.
Embodiment two
The embodiment of the present invention is the installation principle of the airtight accumulative oil-measuring apparatus of a kind of oil well two-phase of effective explanation, now provides one
The in-site installation schematic diagram of the airtight accumulative oil-measuring apparatus of individual oil well two-phase.The scheme of installation of this device refers to Fig. 2.
As in figure 2 it is shown, first airtight for oil well two-phase accumulative oil-measuring apparatus is fixed on the correct position (needs near well head
Making cement basis), then flow divider is fixedly mounted on before well head ginseng water pipeline (needing welded and installed).As shown in Figure 2 finally
Connect oil-feed and the oil return pipeline (DN40) of the airtight accumulative oil-measuring apparatus of oil well two-phase.After installation, pipeline is incubated
Process.Open flow divider, connect the power supply (AC220v) in batch meter, start oil pumper and i.e. enter long-term accumulated gauging state.
Timing every day reading is only needed i.e. to may know that the precise output of this well the previous day.
In the case that the embodiment of the present invention uses tank body to realize oil well two-phase airtight accumulative oil-measuring apparatus, associated components can make
Use following parameter.
Geometric parameter: diameter 700mm, high 1800mm；
Tank body pressure-bearing: 2.0MPa；
Temperature in tank: 40 DEG C of constant temperature；
Batch meter temperature: 30 DEG C of constant temperature；
Range ability: 2.4m3/d 48m3/d；
Gauging precision: 1.0%；
System power supply: AC220v/1250w
Backup power supply: have
Corollary equipment: (long x width x is high: 172x108x72) for flow divider
Certain above-mentioned parameter is only used as illustration, does not cause any restriction to protection scope of the present invention.When being embodied as,
Can select different parameters as the case may be, the purpose to be capable of the accurate cumulative measurement of individual well oil-producing liquid phase is as the criterion.
Additionally, the present invention uses flowmeter persistently to carry out cumulative measurement to oil well stoste liquid phase.Relative to existing volume
3 hours measurement times in pipe strapping, the present invention can be prevented effectively from and measure the statistics misalignment problem bringing in short-term.This
Invention is especially suitable for the oil well that yield average is little and variance is big, can effectively add up the average daily yield of this type of oil well, monthly yield
And average annual yield.
Based on same inventive concept, the embodiment of the present invention additionally provides a kind of airtight accumulative gauging method of oil well two-phase.Should
Method realizes based on the airtight accumulative oil-measuring apparatus of the oil well two-phase shown in Fig. 1.
Fig. 3 shows the process chart of the airtight accumulative gauging method of oil well two-phase.Seeing Fig. 3, oil well two-phase is airtight tired
Metering oil method at least includes:
Step 301: by the well head stoste input pipe in the airtight accumulative oil-measuring apparatus of described oil well two-phase, well head is extracted out
Stoste input to the cellular honeycombed separator of the airtight accumulative oil-measuring apparatus of described oil well two-phase；
Step 302: utilize described cellular honeycombed separator to carry out gas phase separation to described stoste, and by isolated gas phase, liquid
Output is to corresponding sluice valve respectively mutually, and wherein, described stoste includes at least one phase in oil, gas and water three-phase mixture；
Step 303: utilize the gas phase sluice valve being arranged above described cellular honeycombed separator will divide through described cellular honeycombed separator
The gas phase that separates out is defeated feeds in gathering line；
Step 304 utilizes the liquid phase sluice valve being arranged at below described cellular honeycombed separator will separate through described cellular honeycombed separator
The liquid phase going out exports to flowmeter；
Step 305: the liquid phase using flowmeter to export described liquid phase sluice valve is measured, and by the liquid phase after metering
Output to described enter gathering line.
In embodiments of the present invention, the crude oil using cellular honeycombed separator to input well head stoste input pipe separates, broken
The surface tension of bad free minute bubbles in the liquid phase, makes gas phase separate, and relies on gravitational difference to realize gas phase in knockout drum
With liquid phase secondary separation.After the floating drum of liquid phase sluice valve is crossed in liquid level submergence, the buoyancy by floating drum opens liquid sluice valve.
Meanwhile, gas phase sluice valve is in open mode by the gravity of floating drum.So far, present invention achieves gas phase and the liquid phase of stoste
Separate, solve oil well oil-producing statistics by the bigger problem of oil well output gases affect.Complete the gas phase to stoste and liquid phase
After separation, liquid phase enters the liquid phase of flow table entry cumulative measurement oil well output, the gas phase by open mode for the gas by filter
Sluice valve returns to export with sending it to oil-measuring apparatus and enters into ground transportation network.When whole aerogenesis in oil well a period of time, liquid level
Declining, liquid phase sluice valve is automatically switched off by the gravity of floating drum, and flowmeter stops metering, and gas continues the gas phase sluice valve from top
Flow out；When the whole production fluid of oil well in a period of time, liquid level constantly rises, and rises to certain altitude liquid phase sluice valve and opens, stream
Scale starts cummulative metering.When liquid level continues the floating drum rising submergence gas phase sluice valve, gas phase sluice valve under the effect of buoyancy
Closing, liquid phase cannot be introduced into the exit of metering device, can only enter gauge table by liquid phase sluice valve and participate in metering.Pass through
Said method, present invention achieves the cumulative measurement of liquid phase in stoste, solve at present have metering method cannot cumulative measurement
The problem of stoste amount of liquid phase.
In a preferred embodiment, the present invention can also use the liquid phase that described liquid phase sluice valve is inputted by filter
Filter, filter off impurity, and the liquid phase output after filtering is to described flowmeter.
In a preferred embodiment, the present invention can also use check valve connect gas phase sluice valve and enter collector and delivery pipe
Line, it is to avoid gas phase flows backwards.
Summary, use the embodiment of the present invention provide the airtight accumulative gauging method and device of oil well two-phase, can reach as
Lower beneficial effect:
In embodiments of the present invention, the crude oil using cellular honeycombed separator to input well head stoste input pipe separates, broken
The surface tension of bad free minute bubbles in the liquid phase, makes gas phase separate, and relies on gravitational difference to realize gas phase in knockout drum
With liquid phase secondary separation.After the floating drum of liquid phase sluice valve is crossed in liquid level submergence, the buoyancy by floating drum opens liquid sluice valve.
Meanwhile, gas phase sluice valve is in open mode by the gravity of floating drum.So far, present invention achieves gas phase and the liquid phase of stoste
Separate, solve oil well oil-producing statistics by the bigger problem of oil well output gases affect.Complete the gas phase to stoste and liquid phase
After separation, liquid phase enters the liquid phase of flow table entry cumulative measurement oil well output, the gas phase by open mode for the gas by filter
Sluice valve returns to export with sending it to oil-measuring apparatus and enters into ground transportation network.When whole aerogenesis in oil well a period of time, liquid level
Declining, liquid phase sluice valve is automatically switched off by the gravity of floating drum, and flowmeter stops metering, and gas continues the gas phase sluice valve from top
Flow out；When the whole production fluid of oil well in a period of time, liquid level constantly rises, and rises to certain altitude liquid phase sluice valve and opens, stream
Scale starts cummulative metering.When liquid level continues the floating drum rising submergence gas phase sluice valve, gas phase sluice valve under the effect of buoyancy
Closing, liquid phase cannot be introduced into the exit of metering device, can only enter gauge table by liquid phase sluice valve and participate in metering.Pass through
Said method, present invention achieves the cumulative measurement of liquid phase in stoste, solve at present have metering method cannot cumulative measurement
The problem of stoste amount of liquid phase.
So, whether output content from oil well is oil, gas and water three-phase, or single liquid phase or gas phase, can ensure oil well
Whole liquid phases of output can participate in metering, it is ensured that the reliability of produced liquid in oil well metering and accuracy.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for those skilled in the art
For Yuan, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, any modification of being made,
Equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. the airtight accumulative oil-measuring apparatus of an oil well two-phase, it is characterised in that include:
Well head stoste input pipe, for the stoste input extremely airtight accumulative oil-measuring apparatus of described oil well two-phase extracting well head out；
Cellular honeycombed separator, connects with described well head stoste input pipe, for carrying out gas phase separation to described stoste, wherein, described
Stoste includes at least one phase in oil, gas and water three-phase mixture；
Gas phase sluice valve, is arranged above described cellular honeycombed separator, and being used for will be defeated through the isolated gas phase of described cellular honeycombed separator
Feed in gathering line；
Liquid phase sluice valve, is arranged at below described cellular honeycombed separator, for through the output of described cellular honeycombed separator isolated liquid phase
To flowmeter；
Flowmeter, connects with described liquid phase sluice valve, measures for the liquid phase exporting described liquid phase sluice valve, and will meter
After amount liquid phase output to described enter gathering line.
2. device according to claim 1, it is characterised in that described device also includes:
Filter, one end connects with described liquid phase sluice valve, and the other end connects with described flowmeter, for gating described liquid phase
The liquid phase of valve input filters, and filters off impurity, and the liquid phase output after filtering is to described flowmeter.
3. device according to claim 1, it is characterised in that described liquid phase sluice valve is additionally operable to:
When the floating drum of described liquid phase sluice valve is crossed in the non-submergence of the liquid level of described liquid phase, described liquid phase sluice valve is made through gravity
With in closed mode；
When the floating drum of described liquid phase sluice valve is crossed in the liquid level submergence of described liquid phase, described liquid phase sluice valve is through described liquid phase
Buoyancy in opened condition, by the output of described liquid phase to described flowmeter.
4. the device according to any one of claim 1-3, it is characterised in that described gas phase sluice valve is additionally operable to:
When the floating drum of described gas phase sluice valve is crossed in the non-submergence of the liquid level of described liquid phase, described gas phase sluice valve is made through gravity
With in opened condition, by the output of described gas phase to described enter gathering line；
When the floating drum of described gas phase sluice valve is crossed in the liquid level submergence of described liquid phase, described gas phase sluice valve is through described liquid phase
Buoyancy be closed mode.
5. device according to claim 1, it is characterised in that described device also includes:
Check valve, connects with described gas phase sluice valve, for entering to collect the gas phase output of described gas phase sluice valve output to described
Defeated pipeline.
6. the airtight accumulative gauging method of oil well two-phase, uses the oil well two-phase described in any one of claim 1 to 5 airtight tired
Meter oil-measuring apparatus, it is characterised in that include:
By the well head stoste input pipe in the airtight accumulative oil-measuring apparatus of described oil well two-phase, the stoste extracting well head out inputs extremely
The cellular honeycombed separator of the airtight accumulative oil-measuring apparatus of described oil well two-phase；
Utilize described cellular honeycombed separator to carry out gas phase separation to described stoste, and isolated gas phase, liquid phase are exported respectively to
Corresponding sluice valve, wherein, described stoste includes at least one phase in oil, gas and water three-phase mixture；
The gas phase sluice valve that utilization is arranged above described cellular honeycombed separator will be defeated through the isolated gas phase of described cellular honeycombed separator
Feed in gathering line；
The liquid phase sluice valve that utilization is arranged at below described cellular honeycombed separator will be defeated through the isolated liquid phase of described cellular honeycombed separator
Go out to flowmeter；
Use the flowmeter liquid phase that export described liquid phase sluice valve to measure, and by extremely described for the liquid phase output after metering enter
Gathering line.
7. method according to claim 6, it is characterised in that described method also includes:
The liquid phase using the filter in the airtight accumulative oil-measuring apparatus of described oil well two-phase to input described liquid phase sluice valve is carried out
Filter, filter off impurity, and the liquid phase output after filtering is to described flowmeter.
8. method according to claim 6, it is characterised in that
Described method also includes:
When described liquid phase sluice valve is crossed in the non-submergence of liquid level of the liquid phase in the airtight accumulative oil-measuring apparatus of described oil well two-phase
During floating drum, described liquid phase sluice valve is closed mode through Action of Gravity Field；
When the floating drum of described liquid phase sluice valve is crossed in the liquid level submergence of described liquid phase, described liquid phase sluice valve is through described liquid phase
Buoyancy in opened condition, by the output of described liquid phase to described flowmeter.
9. the method according to any one of claim 6-8, it is characterised in that
Described method also includes:
When described gas phase sluice valve is crossed in the non-submergence of liquid level of the liquid phase in the airtight accumulative oil-measuring apparatus of described oil well two-phase
During floating drum, described gas phase sluice valve through Action of Gravity Field in opened condition, by described gas phase output to described enter gathering line；
When the floating drum of described gas phase sluice valve is crossed in the liquid level submergence in the airtight accumulative oil-measuring apparatus of described oil well two-phase, institute
Stating gas phase sluice valve through the buoyancy of described liquid phase is closed mode.
10. method according to claim 6, it is characterised in that described method also includes:
Utilize and connect the gas phase that described gas phase sluice valve exports by check valve with described gas phase sluice valve and export extremely described to enter to collect defeated
Pipeline.
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| CN201610525872.9A CN106150478A (en) | 2016-07-05 | 2016-07-05 | The airtight accumulative gauging method and device of oil well two-phase |
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| CN201610525872.9A CN106150478A (en) | 2016-07-05 | 2016-07-05 | The airtight accumulative gauging method and device of oil well two-phase |
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| CN1178861A (en) * | 1996-10-31 | 1998-04-15 | 胜利石油管理局勘察设计研究院 | Measuring device for voltage control instrument used for two phase separation in oil well |
| US5980737A (en) * | 1998-01-22 | 1999-11-09 | Tornado Flare Systems, Inc. | Positive pressure oil well production package |
| CN201972677U (en) * | 2010-12-22 | 2011-09-14 | 中国石油集团长城钻探工程有限公司 | Oil and gas metering device |
| US20150136243A1 (en) * | 2011-01-31 | 2015-05-21 | Mike McKenzie | Water Knock Out Bottle and Process for Making the Same |
| CN204960917U (en) * | 2015-06-29 | 2016-01-13 | 克拉玛依市尚正石油科技有限公司 | There is pump type individual well three -phase metering device |
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2016
- 2016-07-05 CN CN201610525872.9A patent/CN106150478A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1178861A (en) * | 1996-10-31 | 1998-04-15 | 胜利石油管理局勘察设计研究院 | Measuring device for voltage control instrument used for two phase separation in oil well |
| US5980737A (en) * | 1998-01-22 | 1999-11-09 | Tornado Flare Systems, Inc. | Positive pressure oil well production package |
| CN201972677U (en) * | 2010-12-22 | 2011-09-14 | 中国石油集团长城钻探工程有限公司 | Oil and gas metering device |
| US20150136243A1 (en) * | 2011-01-31 | 2015-05-21 | Mike McKenzie | Water Knock Out Bottle and Process for Making the Same |
| CN204960917U (en) * | 2015-06-29 | 2016-01-13 | 克拉玛依市尚正石油科技有限公司 | There is pump type individual well three -phase metering device |
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