CN108318620A - The steam quality of steam injection pipe determines method and apparatus - Google Patents
The steam quality of steam injection pipe determines method and apparatus Download PDFInfo
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- CN108318620A CN108318620A CN201711402519.2A CN201711402519A CN108318620A CN 108318620 A CN108318620 A CN 108318620A CN 201711402519 A CN201711402519 A CN 201711402519A CN 108318620 A CN108318620 A CN 108318620A
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Abstract
The embodiment of the present application provides a kind of steam quality of steam injection pipe and determines method and apparatus, wherein this method includes：Obtain the dimensional parameters of steam injection pipe, the steam injection rate of steam injection pipe, in steam injection pipe target point position temperature data；According to the temperature data of target point position in the steam injection pipe, the pressure data of target point position in the steam injection pipe is determined；According to the pressure data of target point position, the dimensional parameters of the steam injection pipe and the steam injection rate in the steam injection pipe, determine the steam quality of target point position in the steam injection pipe, since the program passes through the temperature data of target point position in acquisition steam injection pipe, the steam quality of steam injection pipe is determined using temperature data, it thus solves the technical issues of steam quality poor accuracy for determining steam injection pipe present in existing method, has reached the technique effect for the steam quality that can accurately determine steam injection pipe.
Description
Technical field
This application involves heavy oil development technical field, more particularly to a kind of steam quality of steam injection pipe determines method and dress
It sets.
Background technology
During viscous crude steam injection development, it can usually use steam to drive concentric layers steam injection technology and specifically be noted
Steam is developed.When it is implemented, major diameter instlated tubular and minor diameter would generally be utilized to constitute inner tube in pit shaft without box cupling inner tube
(steam injection pipe) and two independent flow passages of annular space.In this way, steam can pass through two independences of inner tube and annular space after ground is the allocated
Runner arrives separately at steam injection well the upper and lower, so as to realize layer steam injection.
When specifically carrying out above-mentioned steam injection development, it usually needs the steam quality in inner tube is known, so as to calculate
The steam heat loss amount of steam injection pipe, and then can be adjusted correspondingly according to the steam heat loss amount of steam injection pipe, with preferably
Carry out steam injection development oil recovery.But since the size of above-mentioned inner tube is relatively small, often can not directly tripping in pertinent instruments into
The measurement of row steam quality.
Currently, in order to determine that the steam quality in steam injection pipe, existing method are all based on experience mostly, in conjunction with correlation theory
The steam quality of simple estimation steam injection pipe.Without fully analyzing the contact in steam injection pipe between parameters, without specific aim
The method that ground provides the steam quality of determining steam injection pipe.Therefore, existing method determines steam injection pipe when it is implemented, often existing
The technical issues of steam quality poor accuracy.
In view of the above-mentioned problems, currently no effective solution has been proposed.
Invention content
The embodiment of the present application provides a kind of steam quality of steam injection pipe and determines method and apparatus, to solve existing side
The technical issues of steam quality poor accuracy of steam injection pipe is determined present in method, reaches the steam that can accurately determine steam injection pipe
The technique effect of mass dryness fraction.
The embodiment of the present application provides a kind of steam quality of steam injection pipe and determines method, including：
Obtain the dimensional parameters of steam injection pipe, the steam injection rate of steam injection pipe, in steam injection pipe target point position temperature data；
According to the temperature data of target point position in the steam injection pipe, target point position in the steam injection pipe is determined
Pressure data；
According to the pressure data of target point position, the dimensional parameters of the steam injection pipe and the steam injection in the steam injection pipe
Rate determines the steam quality of target point position in the steam injection pipe.
In one embodiment, the temperature data of target point position in steam injection pipe is obtained, including：
According to scheduled rate, the tripping in thermocouple in the steam injection pipe；
The temperature data of target point position in the steam injection pipe is acquired by the thermocouple.
In one embodiment, according to the temperature data of target point position in the steam injection pipe, the steam injection is determined
The pressure data of target point position in pipe, including：
Determine the pressure data of the point position in the steam injection pipe respectively according to following formula：
pi=(0.0280282 × Ti)4.25532
In above formula, piFor the pressure data for the point position that number is i, TiFor the temperature number for the point position that number is i
According to i is the number of measuring point, and value is the integer more than 0.
In one embodiment, according to the pressure data of target point position in the steam injection pipe, the steam injection pipe
Dimensional parameters and the steam injection rate determine the steam quality of target point position in the steam injection pipe, including：
According to the pressure data of target point position, the dimensional parameters of the steam injection pipe and the steam injection in the steam injection pipe
Rate determines the wet steam flow volume density of target point position in the steam injection pipe；
According to the wet steam flow volume density of target point position in the steam injection pipe, target measuring point in the steam injection pipe is determined
The steam quality of position.
In one embodiment, according to the pressure data of target point position in the steam injection pipe, the steam injection pipe
Dimensional parameters and the steam injection rate determine the wet steam flow volume density of target point position in the steam injection pipe, including：
The wet steam flow volume density of target point position in the steam injection pipe is determined according to following formula：
In above formula, ρiFor the wet steam flow volume density for the point position that number is i, Δ piThe point position for being i+1 for number
The difference of the pressure data for the point position for being i with number, Δ ziTo number the measuring point that the point position for being i+1 and number are i
Distance value between position, fiFor number be i point position moist steam fluid coefficient of frictional resistance, viThe survey for being i for number
The average speed of the moist steam fluid of point position, d are the diameter of inner pipe of steam injection pipe, and g is acceleration of gravity, wherein the number
Average speed for the moist steam fluid of the point position of i determines according to steam injection rate, the diameter of inner pipe of the steam injection pipe according to
The dimensional parameters of steam injection pipe determine.
In one embodiment, the distance between two neighboring point position is less than or equal to 50 in the target measuring point
Rice.
In one embodiment, the pressure data of target point position, the steam injection pipe according to the steam injection pipe
Dimensional parameters and the steam injection rate, determine that the method is also in the steam injection pipe after the steam quality of target point position
Including：
According to the steam quality of target point position in the steam injection pipe, the steam heat loss amount of the steam injection pipe is determined.
In one embodiment, according to the steam quality of target point position in the steam injection pipe, the steam injection is determined
The steam heat loss amount of pipe, including：
The steam heat loss amount of the steam injection pipe is determined according to following formula：
Qi=4.1868q (hi-hi+1)
In above formula, QiThe steam heat loss amount between point position for being i for the number point position for being i+1 and number, q
For steam injection rate, hiFor the enthalpy for the point position dry saturated steam that number is i, hi+1The point position dry saturated steam for being i+1 for number
Enthalpy.
In one embodiment, the enthalpy of target point position dry saturated steam is determined according to following formula：
hi=Xihg+(1-Xi)hl
In above formula, hiFor the enthalpy for the point position dry saturated steam that number is i, XiSteam to number the point position for being i is done
Degree, hgFor the enthalpy of saturated vapor, hlFor the enthalpy of saturated water.
Present invention also provides a kind of steam quality determining devices of steam injection pipe, including：
Acquisition module, for obtaining the dimensional parameters of steam injection pipe, the steam injection rate of steam injection pipe, target measuring point position in steam injection pipe
The temperature data set；
First determining module determines the steam injection for the temperature data according to target point position in the steam injection pipe
The pressure data of target point position in pipe；
Second determining module, for according to the pressure data of target point position in the steam injection pipe, the steam injection pipe
Dimensional parameters and the steam injection rate, determine the steam quality of target point position in the steam injection pipe.
In one embodiment, second determining module includes：
First determination unit, for according to the pressure data of target point position in the steam injection pipe, the steam injection pipe
Dimensional parameters and the steam injection rate, determine the wet steam flow volume density of target point position in the steam injection pipe；
Second determination unit determines institute for the wet steam flow volume density according to target point position in the steam injection pipe
State the steam quality of target point position in steam injection pipe.
In one embodiment, described device further includes third determining module, for according to target in the steam injection pipe
The steam quality of point position determines the steam heat loss amount of the steam injection pipe.
In the embodiment of the present application, by first acquiring the temperature data of target point position in steam injection pipe, temperature is recycled
Data determine the steam quality of steam injection pipe indirectly, thus solve the steam quality that steam injection pipe is determined present in existing method
The technical issues of poor accuracy, has reached the technique effect of the steam quality of accurate determining steam injection pipe.
Description of the drawings
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, 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 only this
Some embodiments described in application, for those of ordinary skill in the art, in the premise of not making the creative labor property
Under, other drawings may also be obtained based on these drawings.
Fig. 1 is that the steam quality of the steam injection pipe provided according to the application embodiment determines the process chart of method；
Fig. 2 is the composite structural diagram of the steam quality determining device of the steam injection pipe provided according to the application embodiment；
Fig. 3 is that the steam quality of the steam injection pipe provided using the application embodiment in a Sample Scenario determines method
The schematic diagram of the steam quality of steam injection pipe in work progress is determined with device.
Specific implementation mode
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with the application reality
The attached drawing in example is applied, technical solutions in the embodiments of the present application is clearly and completely described, it is clear that described implementation
Example is merely a part but not all of the embodiments of the present application.Based on the embodiment in the application, this field is common
The every other embodiment that technical staff is obtained without making creative work should all belong to the application protection
Range.
In view of the steam quality of existing steam injection pipe determines method, without in earnest analyze steam injection pipe in parameters it
Between specific contact, mostly be based on experience, the steam quality of steam injection pipe is simply estimated in conjunction with correlation theory, cause show
There is the steam quality often when method specific implementation with determining steam injection pipe.It is above-mentioned for generating
The basic reason of technical problem, the application consideration can analyze the temperature data in steam injection pipe and the contact between steam quality,
By first determining the temperature data in steam injection pipe, the temperature data in steam injection pipe is recycled to determine that the steam of steam injection pipe is dry indirectly
Degree.To solve the technical issues of steam quality poor accuracy for determining steam injection pipe present in existing method, reach accurate
Determine the technique effect of the steam quality of steam injection pipe.
Based on above-mentioned thinking thinking, the embodiment of the present application provides a kind of steam quality of steam injection pipe and determines method.Specifically
The steam quality of the steam injection pipe provided according to the application embodiment shown in please referring to Fig.1 determines the process chart of method.
The steam quality of steam injection pipe provided by the embodiments of the present application determines method, when it is implemented, may comprise steps of.
S11：Obtain the dimensional parameters of steam injection pipe, the steam injection rate of steam injection pipe, in steam injection pipe target point position temperature
Data.
In the present embodiment, above-mentioned steam injection pipe can refer to specifically during viscous crude steam injection development, by big straight
Diameter instlated tubular and minor diameter constitute inner tube without box cupling inner tube in pit shaft.It, can be using the steam injection pipe as one when Specific construction
Runner carries out steam injection.It should be noted that the diameter of above-mentioned steam injection pipe is usually smaller, the instrument of conventional measurement steam quality
The measurement of the steam quality of steam injection pipe can not be directly carried out in the tripping in steam injection pipe.
In the present embodiment, you need to add is that, the steam quality for the steam injection pipe that the embodiment of the present application is provided determines
Method, it is particularly applicable to the determinations of the steam quality of the steam injection pipe of minor diameter.Wherein, the steam injection pipe of above-mentioned minor diameter specifically can be
Refer to diameter and be less than or equal to 2.5 cun, is i.e. diameter is less than or equal to 8.333 centimetres of steam injection pipe, for above-mentioned air injection pipe, common steam
Dryness detector can not often stretch into the steam injection pipe of above-mentioned size the measurement for carrying out steam quality.
In the present embodiment, the dimensional parameters of above-mentioned steam injection pipe can specifically include the diameter of steam injection pipe.Certainly, in addition to
Outside the diameter of steam injection pipe, the dimensional parameters of above-mentioned steam injection pipe can also include length, the pipe thickness etc. of steam injection pipe of steam injection pipe
Other parameters.When it is implemented, can select suitably sized parameter as above-mentioned steam injection with construction requirement as the case may be
The dimensional parameters of pipe, subsequently to use.
In the present embodiment, target point position can be existed along the longitudinal direction of steam injection pipe in above-mentioned steam injection pipe
The position for the multiple test points being spaced apart in steam injection pipe.Wherein, above-mentioned target point position can be spacedly distributed
, can also be what unequal interval was distributed.You need to add is that point position number the application of above-mentioned target point position
It is not construed as limiting, but requires above-mentioned target point position that can more fully cover entire well section.In this way, entire well section can be obtained
Temperature variations.
In one embodiment, above-mentioned target point position can be spacedly distributed.Specifically, in above-mentioned target measuring point
The distance between two point positions of arbitrary neighborhood are less than or equal to 50 meters.In this way, can guarantee to obtain covering steam injection pipe
Range is relatively large, more complete temperature data.
In the present embodiment, above-mentioned steam injection rate can refer to specifically passing through during viscous crude steam injection development
Steam injection pipe injects the rate of steam into oil well.
In one embodiment, in order to obtain the temperature data of target point position in satisfactory steam injection pipe, have
When body is implemented, it can execute according to the following steps.
S11-1：According to scheduled rate, the tripping in thermocouple in the steam injection pipe；
S11-2：The temperature data of target point position in the steam injection pipe is acquired by the thermocouple.
In the present embodiment, above-mentioned scheduled rate can be specifically 300m/h, so, it is ensured that the measuring point acquired
The temperature data of position is comparatively accurate, disclosure satisfy that the specific requirement of follow-up data processing.
In the present embodiment, above-mentioned thermocouple is a kind of temperature measuring equipment that shape is relatively thin.In this way, can incite somebody to action
Thermocouple stretches into more narrow steam injection pipe the acquisition for carrying out specific temperature data.Certainly, it should be noted that acquiring
In steam injection pipe when the temperature data of point position, the acquisition of corresponding temperature data can be carried out using thermocouple, can also be led to
Cross the acquisition that other temperature measuring equipments that can be stretched into steam injection pipe of tripping in steam injection pipe carry out corresponding temperature data.It is right
This, the application is not construed as limiting.
In the present embodiment, in the temperature data for acquiring target point position in the steam injection pipe by the thermocouple
During, preset time can be more than in the residence time of point position by controlling above-mentioned thermocouple, to acquire accuracy
Higher, the preferable measuring point of reliability temperature data.Specifically, for example, preset time can be set as 5 minutes.Correspondingly,
When acquiring the temperature data of a point position, thermocouple can be controlled and be more than or equal to 5 minutes in the point position residence time,
So as to collect more accurate temperature data.
S12：According to the temperature data of target point position in the steam injection pipe, target measuring point position in the steam injection pipe is determined
The pressure data set.
In the present embodiment, in order to determine mesh in steam injection pipe using the temperature data of target point position in steam injection pipe
The steam quality of mapping point position can determine the steam injection pipe first with the temperature data of target point position in steam injection pipe
The pressure data of interior target point position recycles the pressure data of target point position in steam injection pipe to determine steam injection pipe indirectly
The steam quality of interior target point position.
In one embodiment, in order to accurately determine out the pressure data of target point position in steam injection pipe,
When it is implemented, the pressure data of the point position in the steam injection pipe can respectively be determined according to following formula：
pi=(0.0280282 × Ti)4.25532
In above formula, piIt is specifically as follows the pressure data for the point position that number is i, TiIt is specifically as follows the survey that number is i
The temperature data of point position, i are specifically as follows the number of measuring point, and value is the integer more than 0, for example,：1,2,3,4,5 etc.
Deng.
S13：According to the pressure data of target point position in the steam injection pipe, dimensional parameters of the steam injection pipe and described
Steam injection rate determines the steam quality of target point position in the steam injection pipe.
In one embodiment, in order to calculating in steam injection pipe each measuring point position in target point position indirectly
The steam quality set, when it is implemented, can be executed according to the following contents：
S13-1：According to the pressure data of target point position, the dimensional parameters of the steam injection pipe and institute in the steam injection pipe
Steam injection rate is stated, determines the wet steam flow volume density of target point position in the steam injection pipe.
In one embodiment, in order to determine the wet steam flow volume density of target point position in above-mentioned steam injection pipe, have
When body is implemented, the wet steam flow volume density of target point position in the steam injection pipe can be determined according to following formula：
In above formula, ρiIt is specifically as follows the wet steam flow volume density for the point position that number is i, Δ piIt is specifically as follows volume
The difference of the pressure data for the point position that number point position for being i+1 is i with number, Δ ziIt is i+1 to be specifically as follows number
Point position and number be the distance between point position of i value, fiIt is specifically as follows the wet steaming for the point position that number is i
The coefficient of frictional resistance of steam flow body, viIt is specifically as follows the average speed of the moist steam fluid for the point position that number is i, d tools
Body can be the diameter of inner pipe of steam injection pipe, and g is specifically as follows acceleration of gravity, wherein described to number the wet of the point position for being i
The average speed of vapor stream determines that the diameter of inner pipe of the steam injection pipe is true according to the dimensional parameters of steam injection pipe according to steam injection rate
It is fixed.
In one embodiment,
S13-2：According to the wet steam flow volume density of target point position in the steam injection pipe, mesh in the steam injection pipe is determined
The steam quality of mapping point position.
In the present embodiment, it should be noted that under the conditions of certain temperature, pressure, wet steam flow volume density and steaming
Usually there is certain corresponding relationship in vapour mass dryness fraction, therefore, when it is implemented, can pass through the side of calculating wet steam flow volume density
Formula obtains the steam quality of target point position in steam injection pipe indirectly.
In the embodiment of the present application, compared to the prior art, due to consideration that temperature data and steam quality in steam injection pipe
Specific contact recycle temperature data to determine indirectly by first acquiring the temperature data of target point position in steam injection pipe
The steam quality of steam injection pipe, to solve the technology for the steam quality poor accuracy for determining steam injection pipe present in existing method
Problem has reached the technique effect of the steam quality of accurate determining steam injection pipe.
In one embodiment, the pressure data of target point position, the steam injection pipe according to the steam injection pipe
Dimensional parameters and the steam injection rate, determine in the steam injection pipe after the steam quality of target point position, in order to have
The guidance of effect ground carries out steam injection development, when it is implemented, can also be dry according to the steam of target point position in above-mentioned steam injection pipe
Degree determines the vapour losses situation of steam injection pipe, so can according to specific vapour losses situation into the adjustment of row effects, with
Steam injection development can more efficiently be carried out.
In one embodiment, when it is implemented, determining in steam injection pipe after the steam quality of target point position, on
The method of stating can also include：According to the steam quality of target point position in the steam injection pipe, the steam of the steam injection pipe is determined
Heat loss amount.Wherein, the steam heat loss amount of above-mentioned steam injection pipe can refer to specifically the heat waste in steam injection pipe between adjacent measuring point
Vector.When it is implemented, the heat waste that the heat loss amount between each measuring point symbolizes steam injection pipe and entire pit shaft can be integrated
Situation is lost, so as to provide reference frame for the specific adjustment of steam injection development.
In one embodiment, the above-mentioned steam quality according to target point position in the steam injection pipe, determine described in
The steam heat loss amount of steam injection pipe, when it is implemented, may include：The steam heat waste of the steam injection pipe is determined according to following formula
Vector：
Qi=4.1868q (hi-hi+1)
In above formula, QiBe specifically as follows number the point position for being i+1 and number be i point position between steam heat
Loss amount, q are specifically as follows steam injection rate, hiIt is specifically as follows the enthalpy for the point position dry saturated steam that number is i, hi+1Specifically may be used
Think the enthalpy for the point position dry saturated steam that number is i+1.
In one embodiment, in order to accurately determine out the enthalpy for the point position dry saturated steam that number is i, specifically
When implementation, the enthalpy of target point position dry saturated steam can be determined according to following formula：
hi=Xihg+(1-Xi)hl
In above formula, hiIt is specifically as follows the enthalpy for the point position dry saturated steam that number is i, XiIt is specifically as follows the survey that number is i
The steam quality of point position, hgIt is specifically as follows the enthalpy of saturated vapor, hlIt is specifically as follows the enthalpy of saturated water.
In one embodiment, in order to be accurately calculated corresponding point position saturated vapor enthalpy, tool
When body is implemented, it can be executed according to following formula：
hg=-22026.9+365.317T-2.25837T2+0.00737420T3-1.33437×10-5T4
+1.26913×10-8T5-4.96880×10-12T6
In above formula, hgIt is specifically as follows the enthalpy of the saturated vapor of corresponding point position, T is specifically as follows corresponding measuring point
The temperature data of position.
In one embodiment, in order to be accurately calculated corresponding point position saturated water enthalpy, specifically
When implementation, it can be executed according to following formula：
hl=23665.2-366.232T+2.26952T2-0.00730365T3+1.30241×10-5T4
-1.22103×10-8T5+4.70878×10-12T6
In above formula, hlIt is specifically as follows the enthalpy of the saturated vapor of corresponding point position, T is specifically as follows corresponding measuring point
The temperature data of position.
In one embodiment, to guarantee to obtain the temperature data of entire pit shaft, the mesh as completely as possible
The distance between two neighboring point position specifically can be set as being less than or equal to 50 meters in mapping point.Certainly, it needs to illustrate
It is that above-mentioned cited the distance between two neighboring point position is intended merely to that the application embodiment is better described.Tool
Body implement when, can be selected as the case may be with construction requirement other suitable distances as above-mentioned two neighboring point position it
Between spacing.
In one embodiment, in order to measure the temperature data of more accurate point position, when specific implementation
Can be according to thermocouple below scheduled rate, and when acquiring the temperature data of a point position, above-mentioned thermocouple is kept to exist
The point position residence time is more than or equal to preset time.In this way, more accurately target point position can be collected
Temperature data.Wherein, above-mentioned scheduled rate can be specifically 300m/h, and above-mentioned preset time can be specifically 5 minutes.Certainly,
It should be noted that above-mentioned cited scheduled rate, preset time are intended merely to that the application embodiment is better described, have
Body can also select other suitable rates as above-mentioned scheduled rate with construction requirement as the case may be when implementing, and select it
He is as above-mentioned preset time the suitable time.In this regard, the application is not construed as limiting.
It can be seen from the above description that the steam quality of steam injection pipe provided by the embodiments of the present application determines method, by
The specific contact of temperature data and steam quality in view of steam injection pipe, by first acquiring target point position in steam injection pipe
Temperature data recycles temperature data to determine the steam quality of steam injection pipe indirectly, to solve present in existing method
The technical issues of determining the steam quality poor accuracy of steam injection pipe has reached the technology effect of the steam quality of accurate determining steam injection pipe
Fruit；Further through according to scheduled rate, tripping in thermocouple is to acquire the temperature number of target point position in steam injection pipe in steam injection pipe
According to so that collecting temperature data reliability is higher, improves the accuracy of the temperature data of acquired target point position.
Based on same inventive concept, a kind of steam quality determining device of steam injection pipe is additionally provided in the embodiment of the present invention,
As described in the following examples.The principle and the steam of steam injection pipe solved the problems, such as due to the steam quality determining device of steam injection pipe is dry
Degree determines that method is similar, therefore the implementation of the steam quality determining device of steam injection pipe may refer to the implementation of method, repeats place
It repeats no more.Used below, the software of predetermined function and/or the group of hardware may be implemented in term " unit " or " module "
It closes.Although device described in following embodiment is preferably realized with software, the combination of hardware or software and hardware
Realization be also that may and be contemplated.Referring to Fig. 2, being the steam quality determination dress of steam injection pipe provided by the embodiments of the present application
A kind of composite structural diagram set, the device can specifically include：Acquisition module 21, the first determining module 22, the second determining module
23, the structure is specifically described below.
Acquisition module 21, specifically can be used for obtaining the dimensional parameters of steam injection pipe, in steam injection pipe target point position temperature
Degrees of data and steam injection rate.
First determining module 22 specifically can be used for the temperature data according to target point position in the steam injection pipe, really
The pressure data of target point position in the fixed steam injection pipe.
Second determining module 23 specifically can be used for according to the pressure data of target point position, institute in the steam injection pipe
The dimensional parameters of steam injection pipe and the steam injection rate are stated, determines the steam quality of target point position in the steam injection pipe.
In one embodiment, in order to according to the pressure data of target point position in the steam injection pipe, described
The dimensional parameters of steam injection pipe and the steam injection rate, determine the steam quality of target point position in the steam injection pipe, described
Two determining modules 23 can specifically include following structural unit：
First determination unit specifically can be used for according to the pressure data of target point position in the steam injection pipe, described
The dimensional parameters of steam injection pipe and the steam injection rate, determine the wet steam flow volume density of target point position in the steam injection pipe；
Second determination unit specifically can be used for close according to the moist steam fluid of target point position in the steam injection pipe
Degree, determines the steam quality of target point position in the steam injection pipe.
In one embodiment, in order to further measure the heat loss situation of pit shaft during steam injection recovery,
Described device can also include specifically third determining module, specifically can be used for according to target point position in the steam injection pipe
Steam quality determines the steam heat loss amount of the steam injection pipe.
In one embodiment, in order to according to the temperature data of target point position in the steam injection pipe, determination
The pressure data of target point position in the steam injection pipe, above-mentioned first determining module 22 is when it is implemented, can be according to following
Formula determines the pressure data of the point position in the steam injection pipe respectively：
pi=(0.0280282 × Ti)4.25532
In above formula, piFor the pressure data for the point position that number is i, TiFor the temperature number for the point position that number is i
According to i is the number of measuring point, and value is the integer more than 0.
In one embodiment, in order to according to the pressure data of target point position in the steam injection pipe, described
The dimensional parameters of steam injection pipe and the steam injection rate, determine the wet steam flow volume density of target point position in the steam injection pipe,
Above-mentioned first determination unit is when it is implemented, the wet steaming of target point position in the steam injection pipe can be determined according to following formula
Steam flow volume density：
In above formula, ρiFor the wet steam flow volume density for the point position that number is i, Δ piThe point position for being i+1 for number
The difference of the pressure data for the point position for being i with number, Δ ziTo number the measuring point that the point position for being i+1 and number are i
The distance value of position, fiFor number be i point position moist steam fluid coefficient of frictional resistance, viThe measuring point for being i for number
The average speed of the moist steam fluid of position, d are the diameter of inner pipe of steam injection pipe, and g is acceleration of gravity, wherein the number is i
Point position moist steam fluid average speed according to steam injection rate determine, the diameter of inner pipe of the steam injection pipe is according to steam injection
The dimensional parameters of pipe determine.
In one embodiment, you need to add is that, in order to obtain characterization effect relatively preferably, coverage area relatively
The temperature data of wide target point position, the distance between two neighboring point position can specifically be wanted in the target measuring point
It asks and is less than or equal to 50 meters.Certainly, it should be noted that above-mentioned cited distance value is intended merely to that the application reality is better described
Apply mode.When it is implemented, other suitable spacing can also be selected with specific requirement as the case may be.In this regard, the application
It is not construed as limiting.
In one embodiment, in order to according to the steam quality of target point position in the steam injection pipe, determination
The steam heat loss amount of the steam injection pipe, above-mentioned third determining module when it is implemented, can be determined according to following formula described in
The steam heat loss amount of steam injection pipe：
Qi=4.1868q (hi-hi+1)
In above formula, QiThe steam heat loss amount between point position for being i for the number point position for being i+1 and number, q
For steam injection rate, hiFor the enthalpy for the point position dry saturated steam that number is i, hi+1The point position dry saturated steam for being i+1 for number
Enthalpy.
In one embodiment, when it is implemented, above-mentioned third determining module can specifically be determined according to following formula
The enthalpy of target point position dry saturated steam：
hi=Xihg+(1-Xi)hl
In above formula, hiFor the enthalpy for the point position dry saturated steam that number is i, XiSteam to number the point position for being i is done
Degree, hgFor the enthalpy of saturated vapor, hlFor the enthalpy of saturated water.
Each embodiment in this specification is described in a progressive manner, identical similar portion between each embodiment
Point just to refer each other, and each embodiment focuses on the differences from other embodiments.Especially for system reality
For applying example, since it is substantially similar to the method embodiment, so description is fairly simple, related place is referring to embodiment of the method
Part explanation.
It should be noted that system, device, module or unit that the above embodiment illustrates, it specifically can be by computer
Chip or entity are realized, or are realized by the product with certain function.For convenience of description, in the present specification, it retouches
It is divided into various units when stating apparatus above with function to describe respectively.It certainly, when implementing the application can be the function of each unit
It realizes in the same or multiple software and or hardware.
In addition, in the present specification, such as adjective as first and second can be only used for an element or move
Make to distinguish with another element or action, without requiring or implying any actual this relationship or sequence.Permit in environment
Perhaps in the case of, one in only element, component or step is should not be interpreted as limited to reference to element or component or step (s)
It is a, and can be one or more of element, component or step etc..
It can be seen from the above description that the steam quality determining device of steam injection pipe provided by the embodiments of the present application, by
The specific contact of temperature data and steam quality in view of steam injection pipe is first acquired target in steam injection pipe by acquisition module and surveyed
The temperature data of point position, then steam injection pipe is determined using temperature data by the first determining module and the second determining module indirectly
Steam quality, to solve the technical issues of steam quality poor accuracy for determining steam injection pipe present in existing method,
The technique effect of the steam quality of accurate determining steam injection pipe is reached；Further through according to scheduled rate, tripping in is hot in steam injection pipe
Galvanic couple is to acquire the temperature data of target point position in steam injection pipe so that collecting temperature data reliability is higher, improves institute
The accuracy of the temperature data of the target point position of acquisition.
It is embodied in Sample Scenario at one, the steam quality that steam injection pipe is provided using the application determines method and apparatus
The steam quality of steam injection pipe during certain viscous crude field steam injection recovery is determined, and then is analyzed during steam injection recovery
The heat loss amount of pit shaft.Specifically the application embodiment can be applied to provide in a Sample Scenario in conjunction with shown in Fig. 3
The steam quality of steam injection pipe determines that method and apparatus determine the schematic diagram of the steam quality of steam injection pipe in work progress, refering to following
Content executes.
S1：Obtain the dimensional parameters of steam injection pipe.
In the present embodiment, before carrying out temperature data acquisition, can lubricator first be installed in the well head of steam injection well,
To carry out safeguard measure.
S2：The tripping in thermocouple in the steam injection pipe of steam injection well, to obtain the temperature data of target point position in steam injection pipe.
In the present embodiment, in tripping in thermocouple, thermocouple can be connected to weighted lever, then pulley is installed, started
Weighted lever and thermocouple are passed through (i.e. steam injection pipe) in lubricator tripping in inner tube pit shaft by running and pulling device.When specific decentralization, it can incite somebody to action
Lowering velocity control carries out full well section point in 300m/h or so and surveys, each measuring point position in target point position in acquisition steam injection pipe
The temperature data set.Wherein, the spacing between two adjacent point positions is not more than 50m, acquires the temperature of single point position
The testing time of degrees of data is no less than 5min.In this way, the temperature data of comparatively accurate target point position can be obtained.
In the present embodiment, it is also necessary to it is to be noted that during transferring thermocouple, it is desirable that avoid job-hopping as possible, beat
Knob.In the process of decentralization thermocouple, the instrument that can be specifically connected from thermocouple from ground reads different mine shaft depths i.e.
The temperature value of the steam of different measuring points position, the as temperature data of the point position.
In the present embodiment, when it is implemented, after decentralization thermocouple to the bottom end of inner tube (i.e. steam injection pipe), digital independent
It finishes, above carries thermocouple to well head, take out thermocouple and weighted lever, install well head, test terminates (to get the steam injection
The temperature data of target point position in pipe).
S3：According to the temperature data of target point position in the steam injection pipe, target measuring point position in the steam injection pipe is determined
The pressure data set；Further according to the pressure data of target point position in the steam injection pipe, the dimensional parameters of the steam injection pipe and
The steam injection rate determines the steam quality of target point position in the steam injection pipe.
In the present embodiment, when it is implemented, specific steam quality can be gone out according to following formula step by step calculation：
Determine the pressure data of the point position in the steam injection pipe respectively according to following formula：
pi=(0.0280282 × Ti)4.25532
In above formula, piIt is specifically as follows the pressure data for the point position that number is i, TiIt is specifically as follows the survey that number is i
The temperature data of point position, i are specifically as follows the number of measuring point, and value is the integer more than 0.
After determining the pressure data of point position, target in the steam injection pipe may further be determined according to following formula
The wet steam flow volume density of point position：
In above formula, ρiIt is specifically as follows the wet steam flow volume density for the point position that number is i, Δ piIt is specifically as follows volume
The difference of the pressure data for the point position that number point position for being i+1 is i with number, Δ ziIt is i+1 to be specifically as follows number
Point position and number be i point position distance value, fiIt is specifically as follows the wet steam flow of the point position of i for number
The coefficient of frictional resistance of body, viIt is specifically as follows the average speed of the moist steam fluid for the point position that number is i, d specifically may be used
Think that the diameter of inner pipe of steam injection pipe, g are specifically as follows acceleration of gravity, wherein the moist steam for the point position that the number is i
The average speed of fluid determines that the diameter of inner pipe of the steam injection pipe is determined according to the dimensional parameters of steam injection pipe according to steam injection rate.
Finally, steam injection can be utilized according to the correspondence between wet steam flow volume density and the steam quality of steam injection pipe
The wet steam flow volume density of target point position calculates the steam quality of the target point position in steam injection pipe in pipe.
It is determining in steam injection pipe after the steam quality of target point position, can also further utilize target point position
Steam quality determine the heat loss amount of steam injection pipe.When it is implemented, adjacent measuring point position can be determined according to following formula
Between heat loss amount：
Qi=4.1868q (hi-hi+1)
In above formula, QiBe specifically as follows number the point position for being i+1 and number be i point position between steam heat
Loss amount, q are specifically as follows steam injection rate, hiIt is specifically as follows the enthalpy for the point position dry saturated steam that number is i, hi+1Specifically may be used
Think the enthalpy for the point position dry saturated steam that number is i+1.
By above-mentioned Sample Scenario, the steam quality for demonstrating steam injection pipe provided by the embodiments of the present application determines method and dress
Set, due to consideration that in steam injection pipe temperature data and steam quality specific contact, by first acquiring target measuring point in steam injection pipe
The temperature data of position recycles temperature data to determine the steam quality of steam injection pipe indirectly, solves in existing method really
The technical issues of steam quality poor accuracy of existing determining steam injection pipe, has reached the steam quality of accurate determining steam injection pipe
Technique effect.
Although mentioning different specific embodiments in teachings herein, the application is not limited to be industry
Situation etc. described in standard or embodiment, certain professional standards or the implementation base described using self-defined mode or embodiment
On plinth embodiment modified slightly can also realize above-described embodiment it is identical, it is equivalent or it is close or deformation after it is anticipated that
Implementation result.It, still can be with using these modifications or the embodiment of deformed data acquisition, processing, output, judgment mode etc.
Belong within the scope of the optional embodiment of the application.
Although this application provides the method operating procedure as described in embodiment or flow chart, based on conventional or noninvasive
The means for the property made may include more or less operating procedure.The step of being enumerated in embodiment sequence is only numerous steps
A kind of mode in execution sequence does not represent and unique executes sequence.It, can when device or client production in practice executes
With according to embodiment, either method shown in the drawings sequence is executed or parallel executed (such as at parallel processor or multithreading
The environment of reason, even distributed data processing environment).The terms "include", "comprise" or its any other variant are intended to contain
Lid non-exclusive inclusion, so that process, method, product or equipment including a series of elements are not only wanted including those
Element, but also include other elements that are not explicitly listed, or further include for this process, method, product or equipment
Intrinsic element.In the absence of more restrictions, be not precluded including the element process, method, product or
There is also other identical or equivalent elements in person's equipment.
Device that above-described embodiment illustrates or module etc. can specifically realize by computer chip or entity, or by having
There is the product of certain function to realize.For convenience of description, it is divided into various modules when description apparatus above with function to retouch respectively
It states.Certainly, the function of each module is realized can in the same or multiple software and or hardware when implementing the application,
The module for realizing same function can be realized by the combination of multiple submodule etc..Device embodiment described above is only
Schematically, for example, the division of the module, only a kind of division of logic function, can there is other draw in actual implementation
The mode of dividing, such as multiple module or components can be combined or can be integrated into another system, or some features can be ignored,
Or it does not execute.
It is also known in the art that other than realizing controller in a manner of pure computer readable program code, it is complete
Entirely can by by method and step carry out programming in logic come so that controller with logic gate, switch, application-specific integrated circuit, programmable
The form of logic controller and embedded microcontroller etc. realizes identical function.Therefore this controller is considered one kind
Hardware component, and the structure that the device for realizing various functions that its inside includes can also be considered as in hardware component.Or
Person even, can will be considered as either the software module of implementation method can be hardware again for realizing the device of various functions
Structure in component.
The application can describe in the general context of computer-executable instructions executed by a computer, such as program
Module.Usually, program module includes routines performing specific tasks or implementing specific abstract data types, program, object, group
Part, data structure, class etc..The application can also be put into practice in a distributed computing environment, in these distributed computing environments,
By executing task by the connected remote processing devices of communication network.In a distributed computing environment, program module can
With in the local and remote computer storage media including storage device.
As seen through the above description of the embodiments, those skilled in the art can be understood that the application can
It is realized by the mode of software plus required general hardware platform.Based on this understanding, the technical solution essence of the application
On in other words the part that contributes to existing technology can be expressed in the form of software products, the computer software product
It can be stored in a storage medium, such as ROM/RAM, magnetic disc, CD, including some instructions are used so that a computer equipment
(can be personal computer, mobile terminal, server either network equipment etc.) executes each embodiment of the application or implementation
Method described in certain parts of example.
Each embodiment in this specification is described by the way of progressive, same or analogous portion between each embodiment
Point just to refer each other, and each embodiment focuses on the differences from other embodiments.The application can be used for crowd
In mostly general or special purpose computing system environments or configuration.Such as：Personal computer, server computer, handheld device or
Portable device, laptop device, multicomputer system, microprocessor-based system, set top box, programmable electronics set
Standby, network PC, minicomputer, mainframe computer include the distributed computing environment etc. of any of the above system or equipment.
Although depicting the application by embodiment, it will be appreciated by the skilled addressee that the application there are many deformation and
Variation is without departing from spirit herein, it is desirable to which appended embodiment includes these deformations and changes without departing from the application.
Claims (12)
1. a kind of steam quality of steam injection pipe determines method, which is characterized in that including：
Obtain the dimensional parameters of steam injection pipe, the steam injection rate of steam injection pipe, in steam injection pipe target point position temperature data；
According to the temperature data of target point position in the steam injection pipe, the pressure of target point position in the steam injection pipe is determined
Data；
According to the pressure data of target point position, the dimensional parameters of the steam injection pipe and steam injection speed in the steam injection pipe
Rate determines the steam quality of target point position in the steam injection pipe.
2. according to the method described in claim 1, it is characterized in that, obtain steam injection pipe in target point position temperature data,
Including：
According to scheduled rate, the tripping in thermocouple in the steam injection pipe；
The temperature data of target point position in the steam injection pipe is acquired by the thermocouple.
3. according to the method described in claim 1, it is characterized in that, according to the temperature number of target point position in the steam injection pipe
According to, determine the pressure data of target point position in the steam injection pipe, including：
The pressure data of target point position in the steam injection pipe is determined according to following formula：
pi=(0.0280282 × Ti)4.25532
In above formula, piFor the pressure data for the point position that number is i, TiFor the temperature data for the point position that number is i, i is
The number of measuring point, value are the integer more than 0.
4. according to the method described in claim 1, it is characterized in that, according to the number pressure of target point position in the steam injection pipe
According to, dimensional parameters of the steam injection pipe and the steam injection rate, the steam quality of target point position in the steam injection pipe is determined,
Including：
According to the pressure data of target point position, the dimensional parameters of the steam injection pipe and steam injection speed in the steam injection pipe
Rate determines the wet steam flow volume density of target point position in the steam injection pipe；
According to the wet steam flow volume density of target point position in the steam injection pipe, target point position in the steam injection pipe is determined
Steam quality.
5. according to the method described in claim 4, it is characterized in that, according to the number pressure of target point position in the steam injection pipe
According to, dimensional parameters of the steam injection pipe and the steam injection rate, the wet steam flow of target point position in the steam injection pipe is determined
Volume density, including：
The wet steam flow volume density of target point position in the steam injection pipe is determined according to following formula：
In above formula, ρiFor the wet steam flow volume density for the point position that number is i, Δ piTo number the point position for being i+1 and volume
Number for i point position pressure data difference, Δ ziTo number the point position that the point position for being i+1 and number are i
Between distance value, fiFor number be i point position moist steam fluid coefficient of frictional resistance, viThe measuring point position for being i for number
The average speed for the moist steam fluid set, d are the diameter of inner pipe of steam injection pipe, and g is acceleration of gravity, wherein the number is i's
The average speed of the moist steam fluid of point position determines that the diameter of inner pipe of the steam injection pipe is according to steam injection pipe according to steam injection rate
Dimensional parameters determine.
6. according to the method described in claim 1, it is characterized in that, in the target measuring point between two neighboring point position
Distance is less than or equal to 50 meters.
7. according to the method described in claim 1, it is characterized in that, according to the steam injection pipe target point position pressure
Data, the dimensional parameters of the steam injection pipe and the steam injection rate determine that the steam of target point position in the steam injection pipe is dry
After degree, the method further includes：
According to the steam quality of target point position in the steam injection pipe, the steam heat loss amount of the steam injection pipe is determined.
8. the method according to the description of claim 7 is characterized in that dry according to the steam of target point position in the steam injection pipe
Degree, determines the steam heat loss amount of the steam injection pipe, including：
The steam heat loss amount of the steam injection pipe is determined according to following formula：
Qi=4.1868q (hi-hi+1)
In above formula, QiThe steam heat loss amount between point position for being i for the number point position for being i+1 and number, q are note
Vapour rate, hiFor the enthalpy for the point position dry saturated steam that number is i, hi+1For the enthalpy for the point position dry saturated steam that number is i+1.
9. according to the method described in claim 8, it is characterized in that, determining target point position dry saturated steam according to following formula
Enthalpy：
hi=Xihg+(1-Xi)hl
In above formula, hiFor the enthalpy for the point position dry saturated steam that number is i, XiFor the steam quality for the point position that number is i, hg
For the enthalpy of saturated vapor, hlFor the enthalpy of saturated water.
10. a kind of steam quality determining device of steam injection pipe, which is characterized in that including：
Acquisition module, for obtaining the dimensional parameters of steam injection pipe, the steam injection rate of steam injection pipe, target point position in steam injection pipe
Temperature data；
First determining module is determined for the temperature data according to target point position in the steam injection pipe in the steam injection pipe
The pressure data of target point position；
Second determining module, for the size according to the pressure data of target point position, the steam injection pipe in the steam injection pipe
Parameter and the steam injection rate, determine the steam quality of target point position in the steam injection pipe.
11. device according to claim 10, which is characterized in that second determining module includes：
First determination unit, for the size according to the pressure data of target point position, the steam injection pipe in the steam injection pipe
Parameter and the steam injection rate, determine the wet steam flow volume density of target point position in the steam injection pipe；
Second determination unit determines the note for the wet steam flow volume density according to target point position in the steam injection pipe
The steam quality of target point position in steam pipe.
12. device according to claim 10, which is characterized in that described device further includes third determining module, is used for root
According to the steam quality of target point position in the steam injection pipe, the steam heat loss amount of the steam injection pipe is determined.
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