CN104265282A - Evaluation method for viscosity reducing effect of viscosity reducing agent of oil well and device thereof - Google Patents
Evaluation method for viscosity reducing effect of viscosity reducing agent of oil well and device thereof Download PDFInfo
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- CN104265282A CN104265282A CN201410364923.5A CN201410364923A CN104265282A CN 104265282 A CN104265282 A CN 104265282A CN 201410364923 A CN201410364923 A CN 201410364923A CN 104265282 A CN104265282 A CN 104265282A
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- 239000003129 oil well Substances 0.000 title claims abstract description 87
- 238000011156 evaluation Methods 0.000 title claims abstract description 18
- 239000003638 chemical reducing agent Substances 0.000 title abstract description 7
- 230000001603 reducing effect Effects 0.000 title abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 19
- 239000003795 chemical substances by application Substances 0.000 claims description 101
- 239000003208 petroleum Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 229
- 239000010779 crude oil Substances 0.000 description 13
- 238000005070 sampling Methods 0.000 description 7
- 238000003756 stirring Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 238000000605 extraction Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000004945 emulsification Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/30—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; Viscous liquids; Paints; Inks
- G01N33/28—Oils, i.e. hydrocarbon liquids
- G01N33/2823—Raw oil, drilling fluid or polyphasic mixtures
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Abstract
The invention discloses an evaluation method for a viscosity reducing effect of a viscosity reducing agent of an oil well and a device thereof, and belongs to the field of petroleum industry oil production engineering. The method comprises the following steps: after the viscosity reducing agent is added in the oil well, oil samples with a preset volume are measured from the oil well; the oil samples are poured on papers coated with lead oil; the flatness of the oil samples on the papers coated with the lead oil is obtained; if the obtained flatness is greater than a preset threshold, it is determined that the viscosity reducing effect of the viscosity reducing agent achieves a preset standard; and if the obtained flatness is smaller than or equal to the preset threshold, it is determined that the viscosity reducing effect of the viscosity reducing agent dose not achieve the preset standard. The device comprises a measuring device, a pouring device, an obtaining device and a determining device. The method and the device can evaluate the viscosity reducing effect of the viscosity reducing agent on the spot so as to shorten the evaluation time.
Description
Technical field
The present invention relates to petroleum industry petroleum production engineering field, particularly a kind of evaluation method of oil well visbreaking agent thinning effect and device.
Background technology
At present, the stickiness of the crude oil in pumpingh well may be higher, and in recovery process, because the stickiness of crude oil is high, the load of oil pumping pump is excessive, even can cause the rod broken in oil pumping pump.The impact caused in order to avoid crude oil stickiness is high, generally adds visbreaking agent to reduce the stickiness of crude oil in oil well, needs to evaluate the thinning effect of visbreaking agent after adding visbreaking agent, if poor effect, needs to take to fall glutinous process further.
Current, there is a kind of method evaluating oil well visbreaking agent thinning effect in prior art, comprising: add visbreaking agent a period of time in oil well after, opens sample cock at oil well mouth, gets appropriate oil sample from oil well.Oil sample is taken back laboratory, oil sample is heated, and make the temperature of oil sample remain on 50 degree one hour, then fully stir oil sample, the crude oil comprised to make oil sample fully mixes with visbreaking agent.Then measure the viscosity of oil sample, if viscosity is low, then illustrate that the thinning effect of visbreaking agent is obvious.If viscosity is high, then illustrate that the thinning effect of visbreaking agent is not obvious.
Realizing in process of the present invention, inventor finds that prior art at least exists following problem:
Oil sample is taken back in laboratory by heating, stirring and measure the thinning effect evaluating visbreaking agent, evaluation procedure generally needs one to two day consuming time, overlong time, during this period of time cannot carry out the oil mining work of guide field according to the thinning effect of visbreaking agent.
Summary of the invention
In order to shorten the time of the thinning effect evaluating visbreaking agent, the invention provides a kind of evaluation method and device of oil well visbreaking agent thinning effect.Described technical scheme is as follows:
An evaluation method for oil well visbreaking agent thinning effect, described method comprises:
Add visbreaking agent in oil well after, from oil well, measure the oil sample of preset capacity;
Being poured on by described oil sample scribbles on the paper of lead oil;
Obtain described oil sample in the described planeness scribbled on the paper of lead oil;
If the planeness of described acquisition is greater than predetermined threshold value, then determine that the thinning effect of described visbreaking agent reaches preset standard;
If the planeness of described acquisition is less than or equal to described predetermined threshold value, then determine that the thinning effect of described visbreaking agent does not reach described preset standard.
An evaluating apparatus for oil well visbreaking agent thinning effect, described device comprises:
Dispensing device, for add visbreaking agent in oil well after, measures the oil sample of preset capacity from oil well;
Tilting device, for being poured on the paper scribbling lead oil by described oil sample;
Acquisition device, for obtaining described oil sample in the described planeness scribbled on the paper of lead oil;
Determining device, if be greater than predetermined threshold value for the planeness of described acquisition, then determines that the thinning effect of described visbreaking agent reaches preset standard;
Described determining device, if be also less than or equal to described predetermined threshold value for the planeness of described acquisition, then determines that the thinning effect of described visbreaking agent does not reach described preset standard.
In embodiments of the present invention, add visbreaking agent in oil well after, from oil well, measure the oil sample of preset capacity; Being poured on by oil sample scribbles on the paper of lead oil; Obtain the planeness of oil sample on the paper scribbling lead oil; If the planeness obtained is greater than predetermined threshold value, then determine that the thinning effect of visbreaking agent reaches preset standard; If the planeness obtained is less than or equal to predetermined threshold value, then determine that the thinning effect of visbreaking agent does not reach preset standard.Scribble on the paper of lead oil due to oil sample is poured on, obtain the planeness of oil sample on the paper scribbling lead oil, the thinning effect of visbreaking agent is evaluated according to the planeness of oil sample, so can evaluate in oil wells in field, and avoid and traditional to heat, stir and the Complicated Flow such as measurement, the evaluation procedure that originally just can complete for one to two day in the lab, just can complete at the scene for five to ten minutes, substantially reduces the time of the thinning effect evaluating visbreaking agent.
Accompanying drawing explanation
Fig. 1 is the evaluation method flow chart of a kind of oil well visbreaking agent thinning effect that the embodiment of the present invention 1 provides;
Fig. 2 is the evaluation method flow chart of a kind of oil well visbreaking agent thinning effect that the embodiment of the present invention 2 provides;
Fig. 3 is the evaluating apparatus structural representation of a kind of oil well visbreaking agent thinning effect that the embodiment of the present invention 3 provides.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiment 1
See Fig. 1, embodiments provide a kind of evaluation method of oil well visbreaking agent thinning effect, comprising:
Step 101: add visbreaking agent in oil well after, measures the oil sample of preset capacity from oil well;
Step 102: oil sample is poured on and scribbles on the paper of lead oil;
Step 103: obtain the planeness of oil sample on the paper scribbling lead oil;
Step 104: if the planeness obtained is greater than predetermined threshold value, then determine that the thinning effect of visbreaking agent reaches preset standard;
Step 105: if the planeness obtained is less than or equal to predetermined threshold value, then determine that the thinning effect of visbreaking agent does not reach preset standard.
Preferably, the paper scribbling lead oil is newspaper or the paper evenly scribbling lead oil.
Preferably, obtain the planeness of oil sample on the paper scribbling lead oil, comprising:
The oil sample scribbled on the paper of lead oil is taken, obtains oil sample image;
Obtain the depth value of each pixel that oil sample image comprises;
According to the depth value of each pixel, calculate the planeness of oil sample on the paper scribbling lead oil.
Preferably, obtain the planeness of oil sample on the paper scribbling lead oil, comprising:
Obtain the stereo-picture of the oil sample scribbled on the paper of lead oil;
Obtain the image of the oil heap of this stereo-picture projection, the number of the image of the oil heap that statistics is protruding;
According to the number of statistics, calculate the planeness of oil sample on the paper scribbling lead oil.
Preferably, add visbreaking agent in oil well after, from oil well, measure the oil sample of preset capacity, comprising:
Add visbreaking agent in oil well after, the submergence according to the time and oil well that add visbreaking agent in oil well determines sample time;
The sample time determined, from oil well, measure the oil sample of preset capacity.
In embodiments of the present invention, add visbreaking agent in oil well after, from oil well, measure the oil sample of preset capacity; Being poured on by oil sample scribbles on the paper of lead oil; Obtain the planeness of oil sample on the paper scribbling lead oil; If the planeness obtained is greater than predetermined threshold value, then determine that the thinning effect of visbreaking agent reaches preset standard; If the planeness obtained is less than or equal to predetermined threshold value, then determine that the thinning effect of visbreaking agent does not reach preset standard.Scribble on the paper of lead oil due to oil sample is poured on, obtain the planeness of oil sample on the paper scribbling lead oil, the thinning effect of visbreaking agent is evaluated according to the planeness of oil sample, so can evaluate in oil wells in field, and avoid and traditional to heat, stir and the Complicated Flow such as measurement, the evaluation procedure that originally just can complete for one to two day in the lab, just can complete at the scene for five to ten minutes, substantially reduces the time of the thinning effect evaluating visbreaking agent.
Embodiment 2
Embodiments provide a kind of evaluation method of oil well visbreaking agent thinning effect.
In oil extraction process, the high load of oil pumping pump that causes of the stickiness due to crude oil is excessive, therefore before exploitation, in oil well, usually adds visbreaking agent to reduce the stickiness of crude oil.Add visbreaking agent in oil well after, the method that can be provided by the embodiment of the present invention evaluates the thinning effect of visbreaking agent.
See Fig. 2, the method specifically comprises:
Step 201: add visbreaking agent in oil well;
Wherein, conventional at present visbreaking agent kind has reducing viscosity by emulsification agent, high temperature visbreaking agent and oil soluble viscosity reducer etc.
Such as, in oil well X-56 well, visbreaking agent is added.
Further, when adding visbreaking agent in oil well, also record adds the time of visbreaking agent.
Step 202: the submergence according to the time He this oil well that add visbreaking agent in oil well determines sample time;
Wherein, submergence is the difference of oil pump deeply and between producing fluid level.Producing fluid level is the liquid level of oil well oil pipe and casing annulus when normally producing.
This step is specially, and measures the submergence of this oil well.According to the submergence of this oil well, obtain corresponding time range from submergence with the corresponding relation of time range.From the time range obtained, select a time as the stand-by period.Is added the stand-by period of acquisition the time adding visbreaking agent in oil well, obtain sample time.
Wherein, the corresponding relation of submergence and time range is as shown in table 1.
Table 1
| Submergence (unit: m) | Time range (unit: h) |
| Be less than or equal to 100 | 24-36 |
| Be greater than 100 and be less than 300 | 36-48 |
| Be more than or equal to 300 | 48-72 |
Such as, suppose that the time adding visbreaking agent to X-56 well is 1:00 on July 9.Measure the submergence of this X-56 well, suppose that the submergence of the X-56 well recorded is 270m.According to the submergence 270m of X-56 well, obtain corresponding time range, be greater than 100m and be less than 300m due to submergence 270m from submergence as shown in table 1 with the corresponding relation of time range, then the time range of the correspondence obtained is 36h-48h.From the time range 36h-48h obtained, select a time as the stand-by period, suppose that the time selected is 36h.The 1:00 on July 9 time adding visbreaking agent in X-56 well is added the stand-by period 36h of acquisition, the sample time obtained is 13:00 on July 10.
For another example, suppose that the time adding visbreaking agent to X-79 well is 1:00 on July 9.Measure the submergence of X-79 well, suppose that the submergence of the X-79 well recorded is 80m.According to the submergence 80m of X-79 well, obtain corresponding time range from submergence as shown in table 1 with the corresponding relation of time range, because submergence 80m is less than 100m, then the time range of the correspondence obtained is 24h-36h.From the time range 24h-36h obtained, select a time as the stand-by period, suppose that the time selected is 26h.The 1:00 on July 9 time adding visbreaking agent in X-79 well is added the stand-by period 26h of acquisition, the sample time obtained is 3:00 on July 10.
And for example, the time adding visbreaking agent to Y-321 well is 1:00 on July 9.Measure the submergence of this Y-321 well, suppose that the submergence of the Y-321 well recorded is 410m.According to the submergence 410m of Y-321 well, obtain corresponding time range from submergence as shown in table 1 with the corresponding relation of time range, because submergence 410m is greater than 300m, then the time range of the correspondence obtained is 48h-72h.From the time range 48h-72h obtained, select a time as the stand-by period, suppose that the time selected is 50h.The 1:00 on July 9 time adding visbreaking agent in Y-321 well is added the stand-by period 50h of acquisition, the sample time obtained is 3:00 on July 11.
Step 203: the sample time determined, measures the oil sample of preset capacity from oil well;
Particularly, the sample time determined, open sample cock at oil well mouth, first emptying preset times, with the crude oil saved bit by bit in emptying sampling arm.And then open sample cock, measure the oil sample of preset capacity.
Wherein, sampling arm is be responsible for from oil pumping the arm for sampling separated.Sampling arm is provided with sample cock.
Wherein, preset times is generally three times.Preset capacity can be the arbitrary capacity in 50ml to 100ml.
Such as, suppose that preset times is 3 times, preset capacity is 80ml.For X-56 well, the 13:00 on July 10 sample time determined, open sample cock at the well head of X-56 well, first emptying 3 times, with the crude oil saved bit by bit in emptying sampling arm.And then open sample cock, measure the oil sample of 80ml.
For another example, suppose that preset times is 3 times, preset capacity is 90ml.For X-79 well, the 3:00 on July 10 sample time determined, open sample cock at the well head of X-79 well, first emptying 3 times, with the crude oil saved bit by bit in emptying sampling arm.And then open sample cock, measure the oil sample of 90ml.
And for example, suppose that preset times is 3 times, preset capacity is 70ml.For Y-321 well, the 3:00 on July 11 sample time determined, open sample cock at the well head of Y-321 well, first emptying 3 times, with the crude oil saved bit by bit in emptying sampling arm.And then open sample cock, measure the oil sample of 70ml.
Wherein, the sample time that can determining, control by control appliance the oil sample that oil pumper measures preset capacity from oil well.
Step 204: the oil sample measured is poured on and scribbles on the paper of lead oil;
Wherein, the paper scribbling lead oil can be newspaper or the paper evenly scribbling lead oil.General in order to the rectangle paper scribbling lead oil being cut to default size easy to use, default size is generally 150mm*120mm.Because old newsprint becomes more readily available, so the paper scribbling lead oil generally adopts old newsprint.Because lead oil is organic solvent, oil sample be poured on scribble lead oil paper on after can reach maximum degree of scatter in a short period of time.
This step is specially, and is layered on by the paper scribbling lead oil on smooth horizontal plane, is poured on by the oil sample measured and scribbles on the paper of lead oil.
Such as, be the old newsprint of 150mm*120mm sized by the paper supposing to scribble lead oil.For X-56 well, old newsprint is layered on smooth horizontal plane, the 80ml oil sample measured is poured on old newsprint.
For another example, be the old newsprint of 150mm*120mm sized by the paper supposing to scribble lead oil.For X-79 well, old newsprint is layered on smooth horizontal plane, the 90ml oil sample measured is poured on old newsprint.
And for example, be the old newsprint of 150mm*120mm sized by the paper supposing to scribble lead oil.For Y-321 well, old newsprint is layered on smooth horizontal plane, the 70ml oil sample measured is poured on old newsprint.
Wherein, by control appliance controller mechanical arm oil sample can be poured over and scribble on the paper of lead oil.
Step 205: obtain the planeness of oil sample on the paper scribbling lead oil;
Wherein, this step can (A-1)-(A-3) and step (B-1)-(B-3) two kinds mode realize as follows, is specially:
(A-1): the oil sample scribbled on the paper of lead oil is taken, oil sample image is obtained;
Particularly, call depth camera and the oil sample scribbled on the paper of lead oil is taken, obtain oil sample image.
Such as, for X-56 well, call depth camera and the oil sample on old newsprint is taken, obtain the oil sample image of X-56 well.
For another example, for X-79 well, call depth camera and the oil sample on old newsprint is taken, obtain the oil sample image of X-79 well.
And for example, for Y-321 well, call depth camera and the oil sample on old newsprint is taken, obtain the oil sample image of Y-321 well.
Wherein, with each pixel in the image of depth camera shooting, there is depth value.
(A-2): the depth value obtaining each pixel that oil sample image comprises;
Such as, the depth value of each pixel that the oil sample image obtaining X-56 well comprises.
For another example, the depth value of each pixel that the oil sample image obtaining X-79 well comprises.
And for example, the depth value of each pixel that the oil sample image obtaining Y-321 well comprises.
(A-3): according to the depth value of each pixel, the planeness of oil sample on the paper scribbling lead oil is calculated.
Wherein, this step can be realized by following first, second, and third 3 kinds of modes, is specially:
The first, compared with default value respectively by the depth value of each pixel, statistics depth value is greater than the number of the pixel of default value, using the inverse of the number of statistics as the planeness of oil sample on the paper scribbling lead oil.
Such as, suppose that default value is 20.For X-56 well, the depth value of each pixel is compared with default value 20 respectively, statistics depth value is greater than the number of the pixel of default value 20, and the number of as if statistics is 1, using the oil sample planeness on old newsprint of the inverse 1 of the number 1 of statistics as X-56 well.
For another example, suppose that default value is 20.For X-79 well, the depth value of each pixel is compared with default value 20 respectively, statistics depth value is greater than the number of the pixel of default value 20, and the number of as if statistics is 2, using the oil sample planeness on old newsprint of the inverse 0.5 of the number 2 of statistics as X-79 well.
And for example, suppose that default value is 20.For Y-321 well, the depth value of each pixel is compared with default value 20 respectively, statistics depth value is greater than the number of the pixel of default value 20, and the number of as if statistics is 1, using the oil sample planeness on old newsprint of the inverse 1 of the number 1 of statistics as Y-321 well.
Second, calculate the average of the depth value of each pixel, compared with the average calculated respectively by the depth value of each pixel, statistics depth value is greater than the number of the pixel of average, using the inverse of the number of statistics as the planeness of oil sample on the paper scribbling lead oil.
Such as, for X-56 well, calculate the average of the depth value of each pixel, suppose that the average calculated is 20.The depth value of each pixel is compared with the average 20 calculated respectively, statistics depth value is greater than the number of the pixel of average 20, the number of as if statistics is 1, using the oil sample planeness on old newsprint of the inverse 1 of the number 1 of statistics as X-56 well.
For another example, for X-79 well, calculate the average of the depth value of each pixel, suppose that the average calculated is 20.The depth value of each pixel is compared with the average 20 calculated respectively, statistics depth value is greater than the number of the pixel of average 20, the number of as if statistics is 2, using the oil sample planeness on old newsprint of the inverse 0.5 of the number 2 of statistics as X-79 well.
And for example, for Y-321 well, calculate the average of the depth value of each pixel, suppose that the average calculated is 20.The depth value of each pixel is compared with the average 20 calculated respectively, statistics depth value is greater than the number of the pixel of average 20, the number of as if statistics is 1, using the oil sample planeness on old newsprint of the inverse 1 of the number 1 of statistics as Y-321 well.
3rd, calculate the average of the depth value of each pixel, obtain depth value and be less than the area shared by pixel of average, calculate the ratio of the gross area of area and the oil sample image obtained, using the ratio of calculating as the planeness of oil sample on the paper scribbling lead oil.
Such as, for X-56 well, calculate the average of the depth value of each pixel, suppose that the average calculated is 20, obtain the area shared by pixel that depth value is less than average 20, suppose that the area obtained is 9999mm
2, the gross area of the oil sample image of X-56 well is 10000mm
2, calculate the area 9999mm obtained
2with the gross area 10000mm of oil sample image
2ratio be 0.9999, using the ratio 0.9999 that calculates as the planeness of oil sample on old newsprint of X-56 well.
For another example, for X-79 well, calculate the average of the depth value of each pixel, suppose that the average calculated is 20, obtain the area shared by pixel that depth value is less than average 20, suppose that the area obtained is 9988mm
2, the gross area of the oil sample image of X-79 well is 10000mm
2, calculate the area 9988mm obtained
2with the gross area 10000mm of oil sample image
2ratio be 0.9988, using the ratio 0.9988 that calculates as the planeness of oil sample on old newsprint of X-79 well.
And for example, for Y-321 well, calculate the average of the depth value of each pixel, suppose that the average calculated is 20, obtain the area shared by pixel that depth value is less than average 20, suppose that the area obtained is 9999mm
2, the gross area of the oil sample image of Y-321 well is 10000mm
2, calculate the area 9999mm obtained
2with the gross area 10000mm of oil sample image
2ratio be 0.9999, using the ratio 0.9999 that calculates as the planeness of oil sample on old newsprint of Y-321 well.
Wherein, oil sample be poured on scribble lead oil paper on can scatter rapidly, the stickiness of oil sample is lower, and it is more even that oil sample disperses on the paper scribbling lead oil, and the block oil heap piled up is fewer.The planeness of oil sample can represent the dispersiveness of oil sample on the paper scribbling lead oil, and planeness is larger, and dispersiveness is better.
(B-1): the stereo-picture obtaining the oil sample scribbled on the paper of lead oil;
Particularly, call three-dimensional camera and the oil sample scribbled on the paper of lead oil is taken, obtain the stereo-picture of oil sample.
Such as, for X-56 well, call three-dimensional camera and the oil sample on old newsprint is taken, obtain the stereo-picture of the oil sample of X-56 well.
For another example, for X-79 well, call three-dimensional camera and the oil sample on old newsprint is taken, obtain the stereo-picture of the oil sample of X-79 well.
And for example, for Y-321 well, call three-dimensional camera and the oil sample on old newsprint is taken, obtain the stereo-picture of the oil sample of Y-321 well.
(B-2): the image obtaining the oil heap of stereo-picture projection, the image number of the oil heap that statistics is protruding;
Wherein, stereo-picture comprises the first dimension, the second dimension and third dimension, and the first dimension and the plane that the second dimension forms are plane that is parallel and horizontal plane, and third dimension is the dimension in vertical and horizontal face.The pixel that third dimension is non-vanishing in stereo-picture is the pixel that protruding image comprises.
This step is specially, and obtains the pixel that third dimension is non-vanishing, according to the image of the oil heap of the pixel determination stereo-picture projection obtained, and the number of the image of the oil heap that statistics is protruding.
Such as, for X-56 well, obtain the pixel that third dimension is non-vanishing, determine the image of the oil heap of the stereo-picture projection of the oil sample of X-56 well according to the pixel obtained, the number of the image of the oil heap that statistics is protruding, the number of as if statistics is 1.
For another example, for X-79 well, obtain the pixel that third dimension is non-vanishing, determine the image of the oil heap of the stereo-picture projection of the oil sample of X-79 well according to the pixel obtained, the number of the image of the oil heap that statistics is protruding, the number of as if statistics is 2.
And for example, for Y-321 well, obtain the pixel that third dimension is non-vanishing, determine the image of the oil heap of the stereo-picture projection of the oil sample of Y-321 well according to the pixel obtained, the number of the image of the oil heap that statistics is protruding, the number of as if statistics is 1.
(B-3): according to the number of statistics, the planeness of oil sample on the paper scribbling lead oil is calculated.
Particularly, the inverse of the number of counting statistics, using the inverse of calculating as the planeness of oil sample on the paper scribbling lead oil.
Such as, for X-56 well, the inverse of the number 1 of counting statistics is 1, using the oil sample planeness on old newsprint of the inverse 1 of calculating as X-56 well.
For another example, for X-79 well, the inverse of the number 2 of counting statistics is 0.5, using the oil sample planeness on old newsprint of the inverse 0.5 of calculating as X-79 well.
And for example, for Y-321 well, the inverse of the number 1 of counting statistics is 1, using the oil sample planeness on old newsprint of the inverse 1 of calculating as Y-321 well.
Step 206: according to the planeness obtained, the thinning effect of the visbreaking agent added in oil well is evaluated.
Particularly, the planeness of acquisition and predetermined threshold value are compared, if the planeness obtained is greater than predetermined threshold value, then determine that the thinning effect of the visbreaking agent added in oil well reaches preset standard.If the planeness obtained is less than or equal to predetermined threshold value, then determine that the thinning effect of the visbreaking agent added in oil well does not reach preset standard.
Such as, suppose that predetermined threshold value is 0.45.For X-56 well, planeness 1 and the predetermined threshold value 0.45 of acquisition are compared, and the planeness 1 comparing acquisition is greater than predetermined threshold value 0.45, then determine that the thinning effect of the visbreaking agent added in X-56 well reaches preset standard.
For another example, suppose that predetermined threshold value is 0.45.For X-79 well, planeness 0.5 and the predetermined threshold value 0.45 of acquisition are compared, and the planeness 0.5 comparing acquisition is greater than predetermined threshold value 0.45, then determine that the thinning effect of the visbreaking agent added in X-79 well reaches preset standard.
And for example, suppose that predetermined threshold value is 0.45.For Y-321 well, planeness 1 and the predetermined threshold value 0.45 of acquisition are compared, and the planeness 1 comparing acquisition is greater than predetermined threshold value 0.45, then determine that the thinning effect of the visbreaking agent added in Y-321 well reaches preset standard.
Wherein, the size of planeness can the stickiness of secondary indication oil sample, and the larger stickiness of planeness is lower.Predetermined threshold value is the minimal flatness preset.Preset standard is that the stickiness of oil sample is less than or equal to default stickiness.Default stickiness is maximum stickiness receptible in oil extraction.
Wherein, after evaluating the thinning effect of visbreaking agent, if the thinning effect of visbreaking agent reaches preset standard, then formulate production program according to the thinning effect of visbreaking agent, instruct the exploitation work of oil wells in field.If the thinning effect of visbreaking agent does not reach preset standard, after namely adding visbreaking agent, the stickiness of crude oil is still too high, then formulate follow-up glutinous plan of falling and fall glutinous further to the crude oil in oil well.
Wherein, the method for the embodiment of the present invention can complete the evaluation of the thinning effect to thinner in 5 to 10 minutes in oil wells in field.
In embodiments of the present invention, add visbreaking agent in oil well after, from oil well, measure the oil sample of preset capacity; Being poured on by oil sample scribbles on the paper of lead oil; Obtain the planeness of oil sample on the paper scribbling lead oil; If the planeness obtained is greater than predetermined threshold value, then determine that the thinning effect of visbreaking agent reaches preset standard; If the planeness obtained is less than or equal to predetermined threshold value, then determine that the thinning effect of visbreaking agent does not reach preset standard.Scribble on the paper of lead oil due to oil sample is poured on, obtain the planeness of oil sample on the paper scribbling lead oil, the thinning effect of visbreaking agent is evaluated according to the planeness of oil sample, so can evaluate in oil wells in field, and avoid and traditional to heat, stir and the Complicated Flow such as measurement, the evaluation procedure that originally just can complete for one to two day in the lab, just can complete at the scene for five to ten minutes, substantially reduces the time of the thinning effect evaluating visbreaking agent.
Embodiment 3
See Fig. 3, embodiments provide a kind of evaluating apparatus of oil well visbreaking agent thinning effect, comprising:
Measure module 301, for add visbreaking agent in oil well after, from oil well, measure the oil sample of preset capacity;
Topple over module 302, for oil sample being poured on the paper scribbling lead oil;
Acquisition module 303, for obtaining the planeness of oil sample on the paper scribbling lead oil;
Determination module 304, if be greater than predetermined threshold value for the planeness obtained, then determines that the thinning effect of visbreaking agent reaches preset standard;
This determination module 304, if the planeness also for obtaining is less than or equal to predetermined threshold value, then determines that the thinning effect of visbreaking agent does not reach preset standard.
Wherein, the paper scribbling lead oil is newspaper or the paper evenly scribbling lead oil.
Wherein, acquisition module 303 comprises:
Shooting unit, for taking the oil sample scribbled on the paper of lead oil, obtains oil sample image;
First acquiring unit, for obtaining the depth value of each pixel that oil sample image comprises;
First computing unit, for the depth value according to each pixel, calculates the planeness of oil sample on the paper scribbling lead oil.
Wherein, acquisition module 303 comprises:
Second acquisition unit, for obtaining the stereo-picture of the oil sample scribbled on the paper of lead oil;
Statistic unit, for obtaining the image of the oil heap of stereo-picture projection, the number of the image of the oil heap that statistics is protruding;
Second computing unit, for the number according to statistics, calculates the planeness of oil sample on the paper scribbling lead oil.
Wherein, measure module 301 to comprise:
Determining unit, for add visbreaking agent in oil well after, the submergence according to the time and oil well that add visbreaking agent in oil well determines sample time;
Measure unit, for the sample time determined, from oil well, measure the oil sample of preset capacity.
Wherein, measuring unit and comprise control subelement and oil pumper, for the sample time determined in determining unit, controlling by controlling subelement the oil sample that oil pumper measures preset capacity from oil well.
Wherein, topple over module 302 and comprise control unit and mechanical arm, for oil sample being poured over by control unit controller mechanical arm the paper scribbling lead oil.
In embodiments of the present invention, add visbreaking agent in oil well after, from oil well, measure the oil sample of preset capacity; Being poured on by oil sample scribbles on the paper of lead oil; Obtain the planeness of oil sample on the paper scribbling lead oil; If the planeness obtained is greater than predetermined threshold value, then determine that the thinning effect of visbreaking agent reaches preset standard; If the planeness obtained is less than or equal to predetermined threshold value, then determine that the thinning effect of visbreaking agent does not reach preset standard.Scribble on the paper of lead oil due to oil sample is poured on, obtain the planeness of oil sample on the paper scribbling lead oil, the thinning effect of visbreaking agent is evaluated according to the planeness of oil sample, so can evaluate in oil wells in field, and avoid and traditional to heat, stir and the Complicated Flow such as measurement, the evaluation procedure that originally just can complete for one to two day in the lab, just can complete at the scene for five to ten minutes, substantially reduces the time of the thinning effect evaluating visbreaking agent.
One of ordinary skill in the art will appreciate that all or part of step realizing above-described embodiment can have been come by hardware, the hardware that also can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium mentioned can be read-only storage, disk or CD etc.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an evaluation method for oil well visbreaking agent thinning effect, is characterized in that, described method comprises:
Add visbreaking agent in oil well after, from oil well, measure the oil sample of preset capacity;
Being poured on by described oil sample scribbles on the paper of lead oil;
Obtain described oil sample in the described planeness scribbled on the paper of lead oil;
If the planeness of described acquisition is greater than predetermined threshold value, then determine that the thinning effect of described visbreaking agent reaches preset standard;
If the planeness of described acquisition is less than or equal to described predetermined threshold value, then determine that the thinning effect of described visbreaking agent does not reach described preset standard.
2. the method for claim 1, is characterized in that, described in scribble lead oil paper be newspaper or the paper evenly scribbling lead oil.
3. the method for claim 1, is characterized in that, the described oil sample of described acquisition, in the described planeness scribbled on the paper of lead oil, comprising:
The described described oil sample scribbled on the paper of lead oil is taken, obtains oil sample image;
Obtain the depth value of each pixel that described oil sample image comprises;
According to the depth value of described each pixel, calculate described oil sample in the described planeness scribbled on the paper of lead oil.
4. the method for claim 1, is characterized in that, the described oil sample of described acquisition, in the described planeness scribbled on the paper of lead oil, comprising:
The stereo-picture of the described oil sample on the paper of lead oil is scribbled described in acquisition;
Obtain the image of the oil heap of described stereo-picture projection, add up the number of the image of the oil heap of described projection;
According to the number of described statistics, calculate described oil sample in the described planeness scribbled on the paper of lead oil.
5. the method for claim 1, is characterized in that, described in oil well, add visbreaking agent after, from oil well, measure the oil sample of preset capacity, comprising:
Add visbreaking agent in oil well after, the submergence according to the time and described oil well that add visbreaking agent in described oil well determines sample time;
In the described sample time determined, from described oil well, measure the oil sample of preset capacity.
6. an evaluating apparatus for oil well visbreaking agent thinning effect, is characterized in that, described device comprises:
Measure module, for add visbreaking agent in oil well after, from oil well, measure the oil sample of preset capacity;
Topple over module, for described oil sample being poured on the paper scribbling lead oil;
Acquisition module, for obtaining described oil sample in the described planeness scribbled on the paper of lead oil;
Determination module, if be greater than predetermined threshold value for the planeness of described acquisition, then determines that the thinning effect of described visbreaking agent reaches preset standard;
Described determination module, if be also less than or equal to described predetermined threshold value for the planeness of described acquisition, then determines that the thinning effect of described visbreaking agent does not reach described preset standard.
7. device as claimed in claim 6, is characterized in that, described in scribble lead oil paper be newspaper or the paper evenly scribbling lead oil.
8. device as claimed in claim 6, it is characterized in that, described acquisition module comprises:
Shooting unit, for taking the described described oil sample scribbled on the paper of lead oil, obtains oil sample image;
First acquiring unit, for obtaining the depth value of each pixel that described oil sample image comprises;
First computing unit, for the depth value according to described each pixel, calculates described oil sample in the described planeness scribbled on the paper of lead oil.
9. device as claimed in claim 6, it is characterized in that, described acquisition module comprises:
Second acquisition unit, for scribbling the stereo-picture of the described oil sample on the paper of lead oil described in obtaining;
Statistic unit, for obtaining the image of the oil heap of described stereo-picture projection, adds up the number of the image of the oil heap of described projection;
Second computing unit, for the number according to described statistics, calculates described oil sample in the described planeness scribbled on the paper of lead oil.
10. device as claimed in claim 6, is characterized in that, described in measure module and comprise:
Determining unit, for add visbreaking agent in oil well after, the submergence according to the time and described oil well that add visbreaking agent in described oil well determines sample time;
Measure unit, in the described sample time determined, from described oil well, measure the oil sample of preset capacity.
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