CN106153312B - Gas lift valve valve rod travel measuring device and measuring method - Google Patents
Gas lift valve valve rod travel measuring device and measuring method Download PDFInfo
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- CN106153312B CN106153312B CN201510201639.0A CN201510201639A CN106153312B CN 106153312 B CN106153312 B CN 106153312B CN 201510201639 A CN201510201639 A CN 201510201639A CN 106153312 B CN106153312 B CN 106153312B
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Abstract
The present invention provides a kind of gas lift valve valve rod travel measuring device and measuring method.The gas lift valve valve rod travel measuring device includes the first connector of probe assembly, transformer device and linking probe component and transformer device；Wherein, probe assembly includes probe sleeve, probe, plug, the second connector and elastomeric element；Transformer device includes transformer, transformer sleeve.In application measurement method provided by the invention, in gas lift valve valve rod moving process, since pressure is continuous, slowly variation, probe can push valve ball to move always under the action of elastomeric element, keep the contact with valve ball, to which the run-length data for measuring valve rod to be changed into the run-length data for measuring probe, since probe assembly is connect with transformer device, thus transformer can directly export the run-length data of probe.It is supported to provide data for automatic progress gaslift valve needle ranging experiment.
Description
Technical field
The present invention relates to a kind of sensor technology more particularly to a kind of gas lift valve valve rod travel measuring device and measurement sides
Method.
Background technology
Gas lift valve is most important downhole tool in gas-lift production technique, and the quality of working performance directly determines that gaslift is adopted
The success or failure of oily technique.Gaslift valve needle ranging experiment is one of the main experimental for detecting gas lift valve bellows performance, usually
The load-carry duty for determining gas lift valve ripple pipe assembly, the i.e. rigidity of gas lift valve can be tested by gaslift valve needle ranging, test gas
Lift the Opening pressure of valve and maximum effective valve rod travel.
During gaslift valve needle ranging is tested, using test pressure as ordinate, gas lift valve valve rod travel is as horizontal
Coordinate obtains two sweep scatterplot curves about " test pressure-gas lift valve valve rod travel ", as shown in Figure 1, wherein label
For 1 curve it is corresponding be the increased process of pressure, it is corresponding marked as 2 curve be pressure reduce process, to this two
Sweep scatterplot curve is fitted, you can obtains optimum fit curve, i.e. curve in Fig. 1 marked as 3, slope is gas
Lift the load-carry duty of valve ripple pipe assembly, that is, the rigidity of gas lift valve；In the optimum fit curve, when original text stroke is reduced to zero
When corresponding test pressure be gas lift valve Opening pressure, label is in figure2；During the test, when valve rod travel is more than
When maximum effective valve rod travel, the smooth scatterplot curve of " test pressure-gas lift valve valve rod travel " will appear inflection point, Fig. 1 acceptances of the bid
Number point for being A, the corresponding valve rod travels of inflection point A are the effective valve rod travel of maximum of gas lift valve, and numerical value marks in Fig. 1
For d, the corresponding test pressures of inflection point A are critical pressure, and label is in figure1。
There are mainly two types of typical structure types for existing gaslift valve action test set, and one is telescopic experimental rigs, separately
One is closed experimental rigs.The gaslift valve action test set of both typical structure types can not carry out gas lift valve spy automatically
Needle ranging is tested.
Invention content
The present invention provides a kind of gas lift valve valve rod travel measuring device and measuring method, to realize to gas lift valve valve rod travel
The automatic collection of data and output.
In a first aspect, the present invention provides a kind of gas lift valve valve rod travel measuring device, including：Probe assembly, the first connection
Part and transformer device；
The probe assembly includes probe sleeve, probe, plug, the second connector and elastomeric element；Wherein, the probe
There is the first end of sleeve the first opening, the second end of the probe sleeve to have the second opening, have in the probe sleeve
First accommodating space；The plug is arranged in the first opening of the probe sleeve, and the plug has first through hole, described
Probe is arranged in the first through hole, and is connect with the first end of second connector, the other end of the probe and gaslift
The valve ball of valve contacts；The diameter of the first end of second connector is more than the diameter of the second end of second connector；Institute
The second end that elastomeric element is set in second connector is stated, one end of the elastomeric element is resisted against second connector
First end；
The transformer device includes transformer, transformer sleeve；Wherein, the transformer include transformer case and
Transformer core, the transformer core is mobilizable to be arranged in the transformer case；The transformer sleeve is set in
Outside the transformer, there is the transformer sleeve partition board, the partition board transformer sleeve inner is divided into the second appearance
Between emptying and third accommodating space；The other end of the elastomeric element is resisted against on the partition board, and the partition board has second to lead to
Hole；The first end of the transformer sleeve is socketed on the second opening outer wall of the probe sleeve, and the of the transformer sleeve
Two end caps are connected to the outer wall of the transformer case；
The first end of first connector is connect across second through-hole with the second end of second connector, institute
The second end for stating the first connector is connect with one end of the transformer core；
Confined space is formed in first accommodating space, second accommodating space and the third accommodating space.
Gas lift valve valve rod travel measuring device as described above, wherein the decrement of the elastomeric element is more than the gas
Lift the maximum valve rod travel of valve valve rod.
Gas lift valve valve rod travel measuring device as described above, wherein the elastomeric element is spring.
Gas lift valve valve rod travel measuring device as described above, wherein first connector is metallic rod.
Gas lift valve valve rod travel measuring device as described above, wherein the metallic rod, the probe and described second
The material of connector is no magnetic copper.
Gas lift valve valve rod travel measuring device as described above, wherein the first end of second connector is fan-shaped ties
Structure.
Gas lift valve valve rod travel measuring device as described above, wherein the inclination maximum of the probe is less than 1 °.
Gas lift valve valve rod travel measuring device as described above, wherein the plug is opened with the first of the probe sleeve
It is provided with the first sealing ring between mouthful；And/or
It is provided with the second sealing between the second opening outer wall and the first end of the transformer sleeve of the probe sleeve
Circle；And/or
It is provided with third sealing ring between the transformer sleeve and the outer wall of the transformer case.
Gas lift valve valve rod travel measuring device as described above, wherein the transformer is linear variable difference transformer.
Second aspect, the present invention provide a kind of gas lift valve valve rod travel survey being applied to as described in above-mentioned first aspect is any
The gas lift valve valve rod travel measurement method of device is measured, including：
The valve ball for opening the gas lift valve, under the action of high pressure draught, probe is detached from the valve ball, the probe, the
Into transformer, bore ends move together for two connectors, the first connector and transformer core；
High pressure draught enters what the first accommodating space, the second accommodating space and third accommodating space were formed from first through hole
Confined space forms internal pressure；
After internal pressure is formed, the probe supports residence and states valve ball and push the valve under the action of elastomeric element
Ball moves outside the first through hole；
In the gas lift valve valve rod moving process, valve ball described in the probe pusher moves, and the transformer obtains institute
State the run-length data of probe and output；Wherein, the run-length data of the probe is the run-length data of the gas lift valve valve rod.
Gas lift valve valve rod travel measuring device and measuring method provided by the invention.Wherein, the gas lift valve valve rod travel
Measuring device includes the first connector of probe assembly, transformer device and linking probe component and transformer device；Wherein,
Probe assembly includes probe sleeve, probe, plug, the second connector and elastomeric element；Transformer device includes transformer, transformation
Device sleeve.In application measurement method provided by the invention, in gas lift valve valve rod moving process, since pressure is continuous, slow
Variation, probe can push valve ball to move always under the action of elastomeric element, keep the contact with valve ball, so that valve will be measured
The run-length data of bar is changed into the run-length data for measuring probe, since probe assembly is connect with transformer device, thus transformer
The run-length data of probe can directly be exported.It is supported to provide data for automatic progress gaslift valve needle ranging experiment.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Some bright embodiments for those of ordinary skill in the art without having to pay creative labor, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is that the curve graph obtained in the process is tested in gaslift valve needle ranging in the prior art；
Fig. 2 is the structural schematic diagram of gas lift valve valve rod travel measuring device embodiment of the present invention；
Fig. 3 is that application gas lift valve valve rod travel measuring device provided by the invention carries out gaslift valve needle ranging experiment process
The scatter plot of middle acquisition.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Fig. 2 is the structural schematic diagram of gas lift valve valve rod travel measuring device embodiment of the present invention.As shown in Fig. 2, this implementation
Example provide gas lift valve valve rod travel measuring device, may include：Probe assembly, the first connector 301 and transformer device；
The probe assembly includes probe sleeve 101, probe 102, plug 103, the second connector 104 and elastomeric element
105；Wherein, there is the first end of the probe sleeve 101 first opening, the second end of the probe sleeve 101 to have second
Opening, the probe sleeve 101 is interior to have the first accommodating space 106；The plug 103 is arranged in the probe sleeve 101
In first opening, there is the plug 103 first through hole 107, the probe 102 to be arranged in the first through hole 107, and with institute
The first end connection of the second connector 104 is stated, the other end of the probe 102 is contacted with the valve ball 108 of gas lift valve；Described second
The diameter of the first end of connector 104 is more than the diameter of the second end of second connector 104；105 sets of the elastomeric element
It is located at the second end of second connector 104, one end of the elastomeric element 105 is resisted against second connector 104
First end；
The transformer device includes transformer 201, transformer sleeve 202；Wherein, the transformer 201 includes transformation
Device shell 203 and transformer core 204, the transformer core 204 is mobilizable to be arranged in the transformer case 203
It is interior；The transformer sleeve 202 is set in outside the transformer 201, the transformer sleeve 202 have partition board 205, it is described every
Plate 205 will be divided into the second accommodating space 206 and third accommodating space 207 inside the transformer sleeve 202；The elastic portion
The other end of part 105 is resisted against on the partition board 205, and the partition board 205 has the second through-hole 208；The transformer sleeve 202
First end be socketed on the second opening outer wall of the probe sleeve 101, the second end of the transformer sleeve 202 is socketed on institute
State the outer wall of transformer case 203；
The first end of first connector 301 passes through the second of second through-hole 208 and second connector 104
End connection, the second end of first connector 301 are connect with one end of the transformer core 204；
It is formed in first accommodating space 106, second accommodating space 206 and the third accommodating space 207
Confined space.
It should be noted that the decrement of the elastomeric element 105 is more than the maximum valve rod travel of the gas lift valve valve rod,
When the elastomeric element 105 is in compression limit, the interior bore ends of the transformer core 204 and the transformer 201 it
Between still there are gap, to prevent the interior bore ends of the transformer 201 from being collided with the transformer core 204.
Specifically, in the present embodiment, the elastomeric element 105 can be that spring in other implementations can also
The elastomeric element 105 is replaced using other elastic components, the present embodiment is not limited this.
In the present embodiment, first connector 301 can be metallic rod；In addition it should be noted that, the metallic rod,
The material of the probe 102 and second connector 104 is no magnetic copper；To avoid the metallic rod, the probe
102 and second connector 104 Induced magnetic field of transformer provided in this embodiment is had an impact；In other words, if
The metallic rod, the probe 102 and second connector 104 have magnetism, then when the metallic rod, the probe
102 and when second connector 104 identical as the magnetism of the transformer core 204, the active force to repel each other is will produce, when
When the metallic rod, the probe 102 and second connector 104 are different with the magnetism of the transformer core 204, meeting
Attracting active force is generated, is easy to have an impact run-length data, keeps the run-length data of acquisition inaccurate.
In the present embodiment, it is provided with the first sealing between the plug 103 and the first opening of the probe sleeve 101
Circle 401；And/or it is arranged between the second opening outer wall and the first end of the transformer sleeve 202 of the probe sleeve 101
There is the second sealing ring 402；And/or is provided between the transformer sleeve 202 and the outer wall of the transformer case 203
Three sealing rings 403.By the way that sealing ring is arranged, ensure that first accommodating space 106, the second accommodating space 206 and third are held
Between emptying 207 it is closed.
In a kind of feasible embodiment, the first end of second connector 104 could be provided as sector structure, from
And the bearing area during gaslift valve needle ranging is tested to high pressure draught can be reduced, and then reduce the valve ball of gas lift valve
Impact force when 108 unlatching.
Further, in this embodiment when the probe 102, second connector 104, first connector 301
And it when 204 entirety of transformer core and the endoporus inclination contact of the transformer 201, needs to ensure the probe 102
Inclination maximum be less than 1 °, mistake when to ensure that transformer 201 provided in this embodiment measures the valve rod travel of gas lift valve
Difference is less than error as defined in the main trade promotion tissue of American industry (American Petroleum Institute, API)
Value 0.127mm.
For example, it is assumed that a diameter of 4.8mm of transformer core 204 and metallic rod, the diameter of bore of the transformer 201 are
6.5mm, the probe 102, second connector 104, first connector 301 and the transformer core 204 are whole
Initial length of the body in the endoporus of transformer 201 is 112mm, when the probe 102, second connector 104, described the
When a connection piece 301 and 204 entirety of the transformer core and the endoporus inclination contact of the transformer 201, the probe
In the case that 102 inclination maximum is 1 °, when the valve rod travel of gas lift valve is 10mm, error is 1.5 μm, is much smaller than
0.127mm。
Specifically, the transformer 201 in the present embodiment can be linear variable difference transformer.
It is high when application gas lift valve valve rod travel measuring device provided in this embodiment carries out gaslift valve needle ranging experiment
Pressure gas stream can enter the first accommodating space 106, the second accommodating space 206 and third accommodating space 207 and form internal pressure, by institute
Stating probe 102, the second connector 104, the first connector 301 and transformer core 204 can be in high pressure draught formation
Under the action of pressure, supports residence and state the valve ball 108 of gas lift valve, and the valve ball 108 is pushed to be moved outside the first through hole 107
It is dynamic, to which the run-length data for measuring gas lift valve valve rod to be converted to the run-length data for measuring the probe 102, and due to described
Probe assembly is connect with the transformer device, thus transformer 201 can directly export the run-length data of probe.To for certainly
The dynamic gaslift valve needle ranging experiment offer data that carry out are supported.
Gas lift valve valve rod travel measuring device provided in this embodiment, including probe assembly, transformer device and connection
First connector 301 of probe assembly and transformer device；Wherein, probe assembly includes probe sleeve 101, probe, plug
103, the second connector 104 and elastomeric element 105；Transformer device includes transformer, transformer sleeve 202；To measure
The run-length data of gas lift valve valve rod is converted to the run-length data for measuring the probe, and the probe is directly exported by transformer
Run-length data is supported to realize that automatic progress gaslift valve needle ranging experiment provides data.
The present embodiment provides a kind of gas lift valve valve rod travel measurement methods, can be applied to the gas lift valve in above-described embodiment
Valve rod travel measuring device.Method provided in this embodiment can specifically include：
The valve ball 108 for opening the gas lift valve, under the action of high pressure draught, probe is detached from the valve ball 108, the spy
Into transformer, bore ends move together for needle, the second connector 104, the first connector 301 and transformer core 204；High pressure
Air-flow enters what the first accommodating space 106, the second accommodating space 206 and third accommodating space 207 were formed from first through hole 107
Confined space forms internal pressure；After internal pressure is formed, the probe 102 supports residence and states valve under the action of the elastomeric element 105
Ball 108 simultaneously pushes the valve ball 108 to be moved outside the first through hole 107；It is described in the gas lift valve valve rod moving process
Probe 102 pushes the valve ball 108 to move, and the transformer 201 obtains the run-length data of the probe 102 and output；Wherein,
The run-length data of the probe 102 is the run-length data of the gas lift valve valve rod.
That is, in the moment that valve ball 108 is opened, high pressure draught can make the probe, the second connector 104, first
Into transformer 201, bore ends move together for connector 301 and transformer core 204, and are detached from the valve ball 108, described
First through hole 107 becomes high pressure draught entrance, and high pressure draught enters the first accommodating space 106, the second accommodating space 206 and the
The confined space formed in three accommodating spaces 207, after the internal pressure of the confined space is formed, the probe 102 is in the bullet
Property component 105 pressure effect under, contacted again with the valve ball 108, the probe 102 supports residence and states valve ball 108 and push away
The valve ball 108 is moved to move outside the first through hole 107；In the gas lift valve valve rod moving process, due to the pressure of internal pressure
Power is continuous, slowly changes, thus the probe 102 can always push away under the action of the pressure of the elastomeric element 105
The dynamic valve ball 108 moves, and holding and the contact of the valve ball 108, are the valve ball to the stroke of the probe 102
108 stroke, therefore, the run-length data of the probe 102 exported by the transformer 201 obtain the gas lift valve valve
The run-length data of bar.
With reference to Fig. 3, gaslift valve needle ranging experiment is carried out by gas lift valve valve rod travel measuring device provided in this embodiment
The scatter plot of the relationship of probe location and output voltage in the process can be seen that the linear relationship of probe location and output voltage
Preferably, it can be deduced that its linearity is up to 0.999999355, and maximum displacement error is only 0.11mm, and mean error is
0.00553, it can be seen that, using gas lift valve valve rod travel measuring device and measuring method provided in this embodiment, can acquire
And gas lift valve valve rod travel data are exported, it is supported to provide data for automatic progress gaslift valve needle ranging experiment.
Gas lift valve valve rod travel measurement method provided in this embodiment, the gas lift valve valve rod row being applied in above-described embodiment
The run-length data for measuring gas lift valve valve rod can be converted to the run-length data for measuring the probe, pass through change by journey measuring device
Depressor directly exports the run-length data of the probe, is supported to realize that automatic progress gaslift valve needle ranging experiment provides data.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of gas lift valve valve rod travel measuring device, which is characterized in that including：Probe assembly, the first connector and transformation
Device assembly；
The probe assembly includes probe sleeve, probe, plug, the second connector and elastomeric element；Wherein, the probe sleeve
First end there is the first opening, the second end of the probe sleeve to have the second opening, have first in the probe sleeve
Accommodating space；The plug is arranged in the first opening of the probe sleeve, and the plug has first through hole, the probe
It is arranged in the first through hole, and is connect with the first end of second connector, the other end of the probe and gas lift valve
Valve ball contacts；The diameter of the first end of second connector is more than the diameter of the second end of second connector；The bullet
Property component is set in the second end of second connector, and one end of the elastomeric element is resisted against the of second connector
One end；
The transformer device includes transformer, transformer sleeve；Wherein, the transformer includes transformer case and transformation
Device iron core, the transformer core is mobilizable to be arranged in the transformer case；The transformer sleeve is set in described
Outside transformer, there is the transformer sleeve partition board, the partition board transformer sleeve inner is divided into the second accommodating sky
Between and third accommodating space；The other end of the elastomeric element is resisted against on the partition board, and the partition board has the second through-hole；Institute
The first end for stating transformer sleeve is socketed on the second opening outer wall of the probe sleeve, the second end cap of the transformer sleeve
It is connected to the outer wall of the transformer case；
The first end of first connector is connect across second through-hole with the second end of second connector, and described
The second end of a connection piece is connect with one end of the transformer core；
Confined space is formed in first accommodating space, second accommodating space and the third accommodating space.
2. gas lift valve valve rod travel measuring device according to claim 1, which is characterized in that the compression of the elastomeric element
Maximum valve rod travel of the amount more than the gas lift valve valve rod.
3. gas lift valve valve rod travel measuring device according to claim 2, which is characterized in that the elastomeric element is bullet
Spring.
4. gas lift valve valve rod travel measuring device according to claim 1, which is characterized in that first connector is gold
Belong to bar.
5. gas lift valve valve rod travel measuring device according to claim 4, which is characterized in that the metallic rod, the spy
The material of needle and second connector is no magnetic copper.
6. gas lift valve valve rod travel measuring device according to claim 5, which is characterized in that the of second connector
One end is sector structure.
7. gas lift valve valve rod travel measuring device according to claim 6, which is characterized in that the inclination maximum of the probe
Less than 1 °.
8. gas lift valve valve rod travel measuring device according to claim 1, which is characterized in that the plug and the probe
It is provided with the first sealing ring between first opening of sleeve；And/or
It is provided with the second sealing ring between the second opening outer wall and the first end of the transformer sleeve of the probe sleeve；
And/or
It is provided with third sealing ring between the transformer sleeve and the outer wall of the transformer case.
9. according to any gas lift valve valve rod travel measuring devices of claim 1-8, which is characterized in that the transformer is
Linear variable difference transformer.
10. a kind of gas lift valve valve rod row being applied to the gas lift valve valve rod travel measuring device as described in claim 1-9 is any
Journey measurement method, which is characterized in that including：
The valve ball for opening the gas lift valve, under the action of high pressure draught, probe is detached from the valve ball, and the probe, second connect
Into transformer, bore ends move together for fitting, the first connector and transformer core；
High pressure draught enters the closed of the first accommodating space, the second accommodating space and the formation of third accommodating space from first through hole
Space forms internal pressure；
After internal pressure is formed, the probe supports residence and states valve ball and the valve ball is pushed to exist under the action of the elastomeric element
It is mobile outside the first through hole；
In the gas lift valve valve rod moving process, valve ball described in the probe pusher moves, and the transformer obtains the spy
The run-length data of needle and output；Wherein, the run-length data of the probe is the run-length data of the gas lift valve valve rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510201639.0A CN106153312B (en) | 2015-04-24 | 2015-04-24 | Gas lift valve valve rod travel measuring device and measuring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510201639.0A CN106153312B (en) | 2015-04-24 | 2015-04-24 | Gas lift valve valve rod travel measuring device and measuring method |
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| Publication Number | Publication Date |
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| CN106153312A CN106153312A (en) | 2016-11-23 |
| CN106153312B true CN106153312B (en) | 2018-09-04 |
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| Publication number | Publication date |
|---|---|
| CN106153312A (en) | 2016-11-23 |
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