CN107515156A - A kind of strength test system and method for water plugging profile control agent - Google Patents
A kind of strength test system and method for water plugging profile control agent Download PDFInfo
- Publication number
- CN107515156A CN107515156A CN201710734649.XA CN201710734649A CN107515156A CN 107515156 A CN107515156 A CN 107515156A CN 201710734649 A CN201710734649 A CN 201710734649A CN 107515156 A CN107515156 A CN 107515156A
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- sample
- test probe
- test
- sensor
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
Abstract
The invention provides a kind of strength test system and method for water plugging profile control agent.Evaluation system includes lifter；The sensor being arranged on the lifter；The test probe and computer being connected with the sensor；Sample unit below the test probe, the sample unit is used to place or fixed sample.Method of testing, which is included in, fills up water plugging profile control agent sample to be measured in sample unit；Test probe is depressed on testing sample with predetermined measuring distance after initial position is displaced downwardly to trigger point, then returns to initial position；The stress data at sensor record test probe tip, and load force data and the time data of load force application on sample；Repeat 13 times, obtain the maximum load power on sample, complete the strength test of water plugging profile control agent.Technical scheme provided by the invention can the direct quantitative characteristic of sample is described.
Description
Technical field
The present invention relates to a kind of strength test system and method for water plugging profile control agent, belongs to Water in Water Shutoff in Oil Field profile control technique neck
Domain.
Background technology
In the water flooding middle and later periods, individual well moisture content rises, and water injection well water breakthrough phenomenon aggravates, and causes corresponding oil well to contain
Water steeply rises, and some oil wells water logging produces stifled, it is necessary to by using appropriate water plugging and profiling technology to high permeability zone or crack
Plug, the flow direction of beam body after change, increase the displacement of reservoir oil area and oil displacement efficiency of displacing agent, reach steady oil control water, improve extraction journey
The purpose of degree.By years development, research and the application of water plugging profile control agent obtain significant progress, develop suitable for different oil
The plugging agent of Tibetan condition, such as gel-like, volume expansion grain class and flexible particle class, the especially material property of plugging agent, intensity
Characteristic is most important for its action effect.
Evaluation method currently used for plugging agent intensity mainly includes：Estimate code method, rotary viscosity measuring method, tension
Strength detection method etc., wherein range estimation code method can be used for the intensity evaluation of cross-linked polymer gel class, but for solid and
The application of soft solid particulate species material is restricted；The intensity of Weak Gels can be evaluated in rotary viscosity measuring method, but cannot be used for
Evaluate solid, soft solid and strong gel rubber material；Tensile strength assay method can be used for evaluation solid and soft solid granular materials
Intensity, but cannot be used for the evaluation of gel like material intensity.
Therefore, these conventional use of plugging agent intensity evaluation methods are often only capable of testing the intensive properties of single kind material
Energy index, does not possess versatility and universality, and is limited by plugging agent outward appearance, shape, mechanical property, most experiments evaluation
Method has larger limitation, it is impossible to effectively evaluates the property of most of unlike material plugging agent.The limitation of experimental method
Property limit the foundation of plugging agent evaluation criterion, need the experimental method for exploring new profile control and water plugging chemical agent combination property badly.
The content of the invention
In order to solve the above technical problems, it is an object of the invention to provide a kind of strength test system of water plugging profile control agent,
The system can direct quantitative the characteristic of sample described, sample intensity property is characterized with the size of power, is easy to compare
Compared with and it is more directly perceived practical, improve recovery ratio tool for oil and be of great significance.
To reach above-mentioned purpose, the invention provides a kind of strength test system of water plugging profile control agent, the system includes：
Lifter；
The sensor being arranged on the lifter；
The test probe and computer being connected respectively with the sensor；The sensor is used to record the test in real time
Probe is in stress data at different moments；The computer is used to receive the sensor signal that the sensor is sent, and to institute
The instruction of sensor sending action is stated, programme-control is realized in the lifting to the test probe；
Sample unit below the test probe, the sample unit is used to place or fixed sample.
In said system, it is preferable that the system also includes test desk, and the sample unit is positioned over the test desk
Top.
In the strength test system of water plugging profile control agent provided by the invention, the sensor can accurately record the survey
Probe header tip is in stress data at different moments, the feelings it is hereby achieved that load force in test sample changes with time
Condition；The computer is used for the data for receiving the sensor transmission, and sends action command to the sensor, so as to surveying
The lifting of probe header carries out programme-control.
In said system, it is preferable that sample unit described in the test probe face.
In said system, it is preferable that the sample unit is sample cell or sample clamping device, and the sample unit can
With the sample of test different types, such as gel piece, microballoon, particle etc., and do not limited by sample size is how many.
In said system, it is preferable that the test probe is conical structure, the bottom of the cone and the biography
Sensor is connected, and the tip of the cone is used to contact sample；It can be subtracted using the test probe of conical structure in the present invention
Small area of contact, widen sample scope so that test process is not influenceed by sample topography.
In said system, the bottom surface radius and height of the cone are not particularly limited；Preferably, the cone
Bottom surface radius is 1-3cm, a height of 2-4cm.
In said system, it is preferable that the test probe is connected by metallic rod with the sensor；It is highly preferred that
The underrun metallic rod of the cone is connected with the sensor.
Present invention also offers a kind of strength test method of water plugging profile control agent, it comprises the following steps：
Water plugging profile control agent sample to be measured is filled up in sample unit；
Test probe is displaced downwardly to trigger point by initial position, predetermined measuring distance is then moved down from trigger point, is reached
After the predetermined measuring distance, the test probe is back to initial position；Moved down from the test probe by initial position
Risen at the moment to trigger point, be back to initial position to the test probe stops at the moment, test described in sensor implementation record
Probe is in stress data at different moments；
The test probe repeats aforesaid operations 1-3 times after being back to initial position, to obtain the test probe most
Big stress data, the maximum weighted data of the test probe are the maximum load force data on sample, complete to adjust water blockoff
Cut open the strength test of agent.
In above-mentioned method of testing, the trigger point refers to that the test probe just touches sample, but also not right
Sample produces the location point of the effect of power；The measuring distance refer to the test probe from the trigger point move down away from
From.The test probe is after initial position is displaced downwardly to trigger point, when being depressed into predetermined measuring distance on testing sample, institute
State the speed pushed to be not particularly limited, can be adjusted according to actual conditions.
In above-mentioned method of testing, since test probe is displaced downwardly to trigger point at the moment, returned to just to test probe
Beginning, position was terminated at the moment, and sensor can accurately record test probe in stress data at different moments.
In above-mentioned method of testing, it is preferable that the predetermined measuring distance is 0.1-10mm.
In above-mentioned method of testing, it is preferable that the test probe is displaced downwardly to behind trigger point by initial position and controls institute
The transient motion speed for stating test probe is 0.
In above-mentioned method of testing, it is preferable that the sample is solid kind and/or soft solid class water plugging profile control agent；It is more excellent
Selection of land, the sample are one or more of combinations in gel-like, volume expansion grain class and flexible particle class water plugging profile control agent.
In above-mentioned method of testing, it is preferable that the maximum load power is 50-20000mN；More preferably 200-
10000mN。
Beneficial effects of the present invention：
Technical scheme provided by the invention realizes the characteristic that direct quantitative describes sample, tested to characterize with the size of power
Sample strength property, is easy to compare and more directly perceived practical, and improving recovery ratio tool for oil is of great significance.
Brief description of the drawings
Fig. 1 is the structural representation of the strength test system for the water plugging profile control agent that embodiment 1 provides；
Fig. 2 is the schematic flow sheet of the intensity evaluation method for the water plugging profile control agent that embodiment 2 provides；
Fig. 3 a are in embodiment 1, when to move down distance objective value be 2mm, when volume expansion grain compression verification load force is with compressing
Between change curve；
Fig. 3 b are in embodiment 1, when to move down distance objective value be 5mm, when volume expansion grain compression verification load force is with compressing
Between change curve；
Fig. 3 c are in embodiment 1, when to move down distance objective value be 10mm, when volume expansion grain compression verification load force is with compressing
Between change curve；
Change curves of the Fig. 4 for gel sample compression verification load force in embodiment 2 with compression time；
Change curves of the Fig. 5 for flexible particle compression verification load force in embodiment 3 with compression time；
Main Reference label declaration：
1：Sensor；2：Test probe；3：Sample cell；4：Test desk；5：Computer.
Embodiment
In order to which technical characteristic, purpose and the beneficial effect of the present invention is more clearly understood, now to the skill of the present invention
Art scheme carry out it is described further below, but it is not intended that to the present invention can practical range restriction.
Embodiment 1
A kind of strength test system of water plugging profile control agent is present embodiments provided, its structure is as shown in figure 1, the system bag
Include：
Lifter；
The sensor 1 being arranged on lifter；
The test probe 2 and computer 5 being connected with sensor 1；Sensor 1 can record test probe 2 in real time in difference
The stress data at moment；Computer 5 is used to receive the sensor signal that sensor 1 is sent, and refers to the sending action of sensor 1
Order, programme-control is realized with the lifting to test probe 2；
Sample cell 3 positioned at the lower section of test probe 2, sample cell 3 are used to place testing sample.
Test probe 2 is conical structure, and the bottom surface radius of cone is 1-3cm, a height of 2-4cm, the bottom surface of cone
It is connected by metallic rod with sensor 1.
The test system that the present embodiment provides can also include test desk 4, and sample cell 3 is positioned on test desk 4.
Embodiment 2
A kind of intensity evaluation method of water plugging profile control agent is present embodiments provided, this process employs embodiment 1 to provide survey
Test system, its flow are as shown in Figure 2.
Test sample in the present embodiment is volume expansion grain class water plugging profile control agent, and test process is as described below：
Water plugging profile control agent sample to be tested is filled up in sample cell 3.
1) test probe (the bottom surface radius of the cone of test probe is 2cm, a height of 4cm) is selected, sets experiment parameter：
Distance objective value 2mm, input cycle-index 2 times are moved down including input.After test starts, test probe 2 slowly moves down, and works as test
(trigger point refers to that test probe just contacts with test sample, but test probe is not also right when probe 2 is displaced downwardly to trigger point
Test sample produces such a location point of effect of power), test is visited 2 and is depressed into the measuring distance 2mm of setting on sample,
Then test probe 2 returns to initial position, then carries out a retest；Sensor 1 is opened from trigger point in this course
The accurate tip of record test probe 2 begin in stressing conditions at different moments, according to active force and the relation of anticaustic power, test probe
What 2 stressing conditions reacted is exactly the load force situation in test sample in fact, thus can draw to obtain the load on sample
Power and the relation curve of time (Fig. 3 a).
As shown in Figure 3 a, when test probe 2 moves down into trigger point, after reaching trigger point load, as compression process loads
Become larger, when it is desired value 2mm to move down distance, it is 565mN that now load force, which reaches maximum, straight from sample stressing conditions
The strength characteristic of the evaluation sample of sight.
2) then probe returns to its initial position again, changes test probe and moves down distance objective value, carries out next time
Circulate compression verification；Set experiment parameter：Distance objective value 5mm, input cycle-index 2 times are moved down including input.Test starts
Afterwards, test probe 2 is slowly moved down, and after reaching trigger point, test probe 2 is depressed on sample with the measuring distance 5mm of setting, so
Probe returns to initial position afterwards, then carries out a retest；Sensor 1 is accurately remembered since trigger point in this course
When recording the stressing conditions at the tip of test probe 2, and continuing to monitor by test desk 4 load force on sample and apply with load force
Between variation relation (Fig. 3 b).
As shown in Figure 3 b, when probe moves down into trigger point, after reaching trigger point load, gradually become as compression process loads
Greatly, when it is desired value 5mm to move down distance, it is 5400mN that now load force, which reaches maximum, from sample stressing conditions intuitively
Evaluate the strength characteristic of sample.
3) then probe returns to its initial position again, continues change and moves down distance objective value, is circulated next time
Compression verification；Set experiment parameter：Distance objective value 10mm, input cycle-index 2 times are moved down including input.After test starts,
Test probe 2 is slowly moved down, and after reaching trigger point, test probe 2 is depressed on sample with the measuring distance 10mm of setting, then
Test probe 2 returns to initial position, then carries out a retest；Sensor is accurate since trigger point in this course
Probe tip stressing conditions are recorded, and continue to monitor the load force on sample and the variation relation (figure of load force application time
3c)。
As shown in Figure 3 c, when probe moves down into trigger point, after reaching trigger point load, gradually become as compression process loads
Greatly, when it is desired value 10mm to move down distance, it is 8081mN that now load force, which reaches maximum, from sample stressing conditions intuitively
Evaluate the strength characteristic of sample.
Embodiment 3
Present embodiments provide a kind of intensity evaluation method of water plugging profile control agent.
Test sample in the present embodiment is flexible particle class water plugging profile control agent, and test process is as described below：
Water plugging profile control agent sample to be tested is filled up in sample unit 3.
Test probe (the bottom surface radius of the cone of test probe is 1cm, a height of 2cm) is selected, sets experiment parameter：Bag
Include input and move down distance objective value 5mm, input cycle-index 2 times.After test starts, test probe 2 slowly moves down, and reaches triggering
After point, test probe 2 is depressed on sample with the measuring distance 5mm of setting, and then test probe returns to initial position, then is entered
Retest of row；In this course sensor 1 since trigger point accurately the tip of record test probe 2 when different
The stressing conditions at quarter, so as to obtain the load force and the relation curve of time (Fig. 4) in test sample.
As shown in figure 4, when probe moves down into trigger point, after reaching trigger point load, gradually become as compression process loads
Greatly, when it is desired value 5mm to move down distance, it is 330mN that now load force, which reaches maximum, is intuitively commented from sample stressing conditions
The strength characteristic of valency sample.
Embodiment 4
Present embodiments provide a kind of intensity evaluation method of water plugging profile control agent.
Test sample in the present embodiment is gel-like water plugging profile control agent, and test process is as described below：
Gel-like water plugging profile control agent sample to be tested is filled up in sample unit 3.
Test probe (the bottom surface radius of the cone of test probe is 1cm, a height of 2cm) is selected, sets experiment parameter：Bag
Include input and move down distance objective value 5mm, input cycle-index 2 times.After test starts, test probe 2 slowly moves down, and reaches triggering
After point, test probe 2 is depressed on sample with the measuring distance 5mm of setting, and then test probe 2 returns to initial position, then
Carry out a retest；In this course sensor 1 since trigger point accurately record test probe 2 tip when different
The stressing conditions at quarter, so as to obtain the load force and the relation curve of time (Fig. 5) in test sample.
As shown in figure 5, when probe moves down into trigger point, after reaching trigger point load, gradually become as compression process loads
Greatly, when it is desired value 5mm to move down distance, it is 290mN that now load force, which reaches maximum, is intuitively commented from sample stressing conditions
The strength characteristic of valency sample.Then probe is when turning away from trigger point position, due to the adhesive attraction of gel, sensor
Pulling force is shown as, negative value occurs, until probe is separated and returned to its initial position with sample, carries out circulation compression next time
Test.
The sample strength evaluation result of table 1 contrasts
Above-described embodiment 2-4 test result is as shown in table 1.
Claims (10)
1. a kind of strength test system of water plugging profile control agent, the system include：
Lifter；
The sensor being arranged on the lifter；
The test probe and computer being connected respectively with the sensor；The sensor is used to record the test probe in real time
In stress data at different moments；The computer is used to receive the sensor signal that the sensor is sent, and to the biography
Sensor sending action is instructed, and programme-control is realized in the lifting to the test probe；
Sample unit below the test probe, the sample unit is used to place or fixed sample.
2. system according to claim 1, wherein, the system also includes test desk, and the sample unit is positioned over described
The top of test desk.
3. system according to claim 1 or 2, wherein, the sample unit is sample cell or sample clamping device.
4. system according to claim 1, wherein, the test probe is conical structure, the bottom of the cone
It is connected with the sensor, the tip of the cone is used to contact sample；
Preferably, the bottom surface radius of the cone is 1-3cm, a height of 2-4cm.
5. system according to claim 1, wherein, the test probe is connected by metallic rod with the sensor.
6. a kind of strength test method of water plugging profile control agent, it is to utilize the water plugging profile control agent described in claim any one of 1-5
Strength test system tested, the described method comprises the following steps：
Water plugging profile control agent sample to be measured is filled up in sample unit；
Test probe is displaced downwardly to trigger point by initial position, then moves down predetermined measuring distance from trigger point, described in arrival
After predetermined measuring distance, the test probe is back to initial position；It is displaced downwardly to from the test probe by initial position tactile
Hair point rises at the moment, and be back to initial position to the test probe stops at the moment, and sensor records the test probe in real time
In stress data at different moments；
The test probe repeats aforesaid operations 1-3 times after being back to initial position, to obtain the maximum weighted of the test probe
Data, the maximum weighted data of the test probe are the maximum load force data on sample, are completed to water plugging profile control agent
Strength test.
7. according to the method for claim 6, wherein, the trigger point refers to that the test probe just touches sample
Product, but do not produce the location point of the effect of power to sample also；
The measuring distance refers to the distance that the test probe moves down from the trigger point.
8. according to the method for claim 6, wherein, the predetermined measuring distance is 0.1-10mm.
9. according to the method for claim 6, wherein, the sample is solid kind and/or soft solid class water plugging profile control agent；
Preferably, the sample is one or more of in gel-like, volume expansion grain class and flexible particle class water plugging profile control agent
Combination.
10. according to the method for claim 6, wherein, the maximum load power is 50-20000mN, preferably 200-
10000mN。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710734649.XA CN107515156B (en) | 2017-08-24 | 2017-08-24 | System and method for testing strength of water shutoff profile control agent |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710734649.XA CN107515156B (en) | 2017-08-24 | 2017-08-24 | System and method for testing strength of water shutoff profile control agent |
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| CN107515156A true CN107515156A (en) | 2017-12-26 |
| CN107515156B CN107515156B (en) | 2021-01-01 |
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| CN201710734649.XA Active CN107515156B (en) | 2017-08-24 | 2017-08-24 | System and method for testing strength of water shutoff profile control agent |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112098244A (en) * | 2020-09-22 | 2020-12-18 | 姚远 | Multi-directional tension fatigue resistance testing equipment suitable for silicone sealant |
| CN115680620A (en) * | 2022-09-08 | 2023-02-03 | 中国石油大学(华东) | Device for testing plugging capability of jelly plugging agent and method for evaluating plugging capability |
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| CN115680620A (en) * | 2022-09-08 | 2023-02-03 | 中国石油大学(华东) | Device for testing plugging capability of jelly plugging agent and method for evaluating plugging capability |
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| CN107515156B (en) | 2021-01-01 |
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