CN114060000B - Shrinkage data processing method, device, equipment and system of injection and production string - Google Patents
Shrinkage data processing method, device, equipment and system of injection and production string Download PDFInfo
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- CN114060000B CN114060000B CN202111316440.4A CN202111316440A CN114060000B CN 114060000 B CN114060000 B CN 114060000B CN 202111316440 A CN202111316440 A CN 202111316440A CN 114060000 B CN114060000 B CN 114060000B
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- 238000006073 displacement reaction Methods 0.000 claims description 44
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- 239000007789 gas Substances 0.000 description 160
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The application provides a shrinkage data processing method, device, equipment and system of an injection and production string, which are used for determining shrinkage data of an 'open hole section' through simulation processing. The method comprises the following steps: the method comprises the steps of obtaining stratum ground stress data of a salt layer where a target pipe column is located, wherein the target pipe column is a pipe column part formed by a salt layer stratum structure in an injection and production pipe column of a salt cavern gas storage, and the injection and production pipe column of the salt cavern gas storage also comprises a metal pipe column connected with the target pipe column; acquiring gas load data of the transmission gas in the target tubular column; after a rock core acquired by a salt layer of a target tubular column is arranged in a shrinkage simulation device, triggering the shrinkage simulation device to apply a force matched with stratum ground stress data to the rock core and apply a force matched with gas load data to the rock core according to a middle hole of the target tubular column; monitoring deformation data of the middle hole in the working process of the shrinkage simulation device; and determining shrinkage data of the target tubular column according to the deformation data.
Description
Technical Field
The application relates to the field of geology, in particular to a shrinkage data processing method, device, equipment and system of an injection and production string.
Background
Natural gas is a clean and environment-friendly excellent energy source, and has the advantages of less carbon dioxide generated during combustion, almost no sulfur dioxide and dust generated, no toxicity, easy volatilization and the like, thus being widely applied worldwide. The underground gas storage is one of five links of production, transportation, storage, marketing and use of the natural gas industry, is a natural gas storage formed by injecting natural gas into an underground cavity, and is an energy infrastructure integrating functions of season peak regulation, accident emergency gas supply, national strategic reserve and the like. Compared with exhausted gas reservoirs and aquifer reservoirs, the salt cavern gas reservoirs have the advantages of high safety, high injection and production efficiency, less cushion gas consumption, large working gas amount and the like.
In the operation process of the salt cavern gas storage, the connection between a ground pipeline and an underground salt cavern is realized through an injection and production pipe column, in order to prevent the pipe column from being pulled and damaged due to the tensile strain at the top of a salt cavity, the injection and production pipe column needs to be reserved with an open hole section with a certain length at the top of the salt cavity, namely, the injection and production pipe column is formed by a section of a metal pipe column, a section of the pipe column connected with the metal pipe column is directly hollowed by a salt stratum, and the pipe column part formed by the salt stratum can be called as the open hole section.
In the research process of the prior related technology, the inventor discovers that the diameter of the 'naked eye section' gradually reduces along with the continuous increase of the accumulated working time, and the gas injection and production efficiency of the salt cavern gas storage is obviously affected, and the normal operation of the salt cavern gas storage is seriously possibly affected.
Disclosure of Invention
The application provides a shrinkage data processing method, device, equipment and system of an injection and production string, which are used for determining shrinkage data of an open hole section through simulation processing, so that accurate and effective data support can be provided for the work evaluation processing of the injection and production string, and the normal operation of a salt cavern gas storage can be guaranteed.
In a first aspect, the present application provides a method for processing shrinkage data of an injection and production string, the method comprising:
the method comprises the steps of obtaining stratum ground stress data of a salt layer where a target pipe column is located, wherein the target pipe column is a pipe column part formed by a salt layer stratum structure in an injection and production pipe column of a salt cavern gas storage, and the injection and production pipe column of the salt cavern gas storage also comprises a metal pipe column connected with the target pipe column;
acquiring gas load data of the transmission gas in the target tubular column;
after a rock core acquired by a salt layer of a target tubular column is arranged in a shrinkage simulation device, triggering the shrinkage simulation device to apply a force matched with stratum ground stress data to the rock core and apply a force matched with gas load data to the rock core according to a middle hole of the target tubular column;
Monitoring deformation data of the middle hole in the working process of the shrinkage simulation device;
and determining shrinkage data of the target tubular column according to the deformation data.
With reference to the first aspect of the present application, in a first possible implementation manner of the first aspect of the present application, the triggering shrinkage simulation apparatus applies a force matched with formation geostress data to the core, and the triggering shrinkage simulation apparatus applies a force matched with gas load data to the core according to a middle hole configured by a target tubular column, specifically including:
triggering the shrinkage simulation device to inject hydraulic oil into the internal closed cavity so that the rock core is subjected to the hydraulic oil load matched with the stratum ground stress data, and triggering the shrinkage simulation device to inject gas into the middle hole of the rock core according to the target tubular column configuration so that the middle hole is subjected to the gas load matched with the gas load data.
With reference to the first possible implementation manner of the first aspect of the present application, in a second possible implementation manner of the first aspect of the present application, triggering the shrinkage simulation device to inject hydraulic oil into the internal closed cavity, so that the core is subjected to a hydraulic oil load matched with the formation ground stress data, and triggering the shrinkage simulation device to inject gas into the middle hole of the core configured according to the target string, so that the middle hole is subjected to a gas load matched with the gas load data, including:
According to the volume of a closed cavity in the shrinkage simulation device, calculating the hydraulic oil injection quantity required by the hydraulic oil load matched with the stratum ground stress data of the core;
according to the injection quantity of the hydraulic oil, a first control instruction is generated, and the first control instruction is sent to a servo hydraulic switch configured on the oil tank, so that the servo hydraulic switch adjusts the working state, the hydraulic oil stored in the oil tank is injected into a closed cavity, and the rock core is subjected to the hydraulic oil load matched with stratum ground stress data.
With reference to the first possible implementation manner of the first aspect of the present application, in a third possible implementation manner of the first aspect of the present application, triggering the shrinkage simulation device to inject gas into the middle hole of the core configured according to the target string, so that the middle hole is subjected to a gas load matched with the gas load data, includes:
calculating the gas injection quantity required by the gas load matched with the gas load data of the middle hole according to the volume of the middle hole configured by the core according to the target tubular column;
and generating a second control instruction according to the gas injection quantity, and sending the second control instruction to a valve configured by the cylinder, so that the valve adjusts the working state, and injecting the gas stored in the cylinder into the middle hole, so that the middle hole is subjected to the gas load matched with the gas load data.
With reference to the first aspect of the present application, in a fourth possible implementation manner of the first aspect of the present application, obtaining formation crustal stress data of a salt layer where a target tubular column is located includes:
acquiring initial stratum ground stress data of a salt layer where a target tubular column is located;
based on the initial stratum ground stress data, generating target stratum ground stress data by combining the predicted stratum ground stress change;
acquiring gas load data for a transport gas within a target string, comprising:
acquiring initial gas load data of the transmission gas in the target tubular column;
based on the initial gas load data, target gas load data is generated in combination with the predicted gas load change.
With reference to the first aspect of the present application, in a fifth possible implementation manner of the first aspect of the present application, during operation of the shrinkage simulation device, monitoring deformation data of the middle hole includes:
in the working process of the shrinkage simulation device, deformation data of the middle hole are monitored through the linear displacement sensor, two ends of the linear displacement sensor are in contact with the wall of the middle hole, in the deformation process of the middle hole, the wall of the middle hole promotes corresponding change of the length of the linear displacement sensor, the linear position sensor records the change of the length of the linear position sensor, and a diameter monitoring result is obtained and is used as deformation data.
With reference to the first aspect of the present application, in a sixth possible implementation manner of the first aspect of the present application, during operation of the shrinkage simulation device, monitoring deformation data of the middle hole includes:
in the working process of the shrinkage simulation device, deformation data of the middle hole are monitored through the annular displacement sensor, the annular body of the annular displacement sensor is contacted with the wall of the middle hole, in the deformation process of the middle hole, the wall of the middle hole promotes corresponding change of the length of the annular displacement sensor, the annular displacement sensor records the change of the length of the annular displacement sensor, and a perimeter monitoring result is obtained and is used as deformation data.
In a second aspect, the present application provides a shrinkage data processing apparatus for an injection and production string, the apparatus comprising:
the system comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring stratum ground stress data of a salt layer where a target pipe column is located, the target pipe column is a pipe column part formed by a salt layer stratum structure in an injection and production pipe column of a salt cavern gas storage, and the injection and production pipe column of the salt cavern gas storage also comprises a metal pipe column connected with the target pipe column;
the acquisition unit is also used for acquiring gas load data of the transmission gas in the target tubular column;
the triggering unit is used for triggering the shrinkage simulation device to apply the action force matched with the stratum ground stress to the rock core and applying the action force matched with the gas load data to the rock core according to the middle hole of the target tubular column configuration after the rock core acquired by the salt layer of the target tubular column is arranged in the shrinkage simulation device;
The monitoring unit is used for monitoring deformation data of the middle hole in the working process of the shrinkage simulation device;
and the determining unit is used for determining shrinkage data of the target tubular column according to the deformation data.
With reference to the second aspect of the present application, in a first possible implementation manner of the second aspect of the present application, the trigger unit is specifically configured to:
triggering the shrinkage simulation device to inject hydraulic oil into the internal closed cavity so that the rock core is subjected to the hydraulic oil load matched with the stratum ground stress data, and triggering the shrinkage simulation device to inject gas into the middle hole of the rock core according to the target tubular column configuration so that the middle hole is subjected to the gas load matched with the gas load data.
With reference to the first possible implementation manner of the second aspect of the present application, in a second possible implementation manner of the second aspect of the present application, the trigger unit is specifically configured to:
according to the volume of a closed cavity in the shrinkage simulation device, calculating the hydraulic oil injection quantity required by the hydraulic oil load matched with the stratum ground stress data of the core;
according to the injection quantity of the hydraulic oil, a first control instruction is generated, and the first control instruction is sent to a servo hydraulic switch configured on the oil tank, so that the servo hydraulic switch adjusts the working state, the hydraulic oil stored in the oil tank is injected into a closed cavity, and the rock core is subjected to the hydraulic oil load matched with stratum ground stress data.
With reference to the first possible implementation manner of the second aspect of the present application, in a third possible implementation manner of the second aspect of the present application, the trigger unit is specifically configured to:
calculating the gas injection quantity required by the gas load matched with the gas load data of the middle hole according to the volume of the middle hole configured by the core according to the target tubular column;
and generating a second control instruction according to the gas injection quantity, and sending the second control instruction to a valve configured by the cylinder, so that the valve adjusts the working state, and injecting the gas stored in the cylinder into the middle hole, so that the middle hole is subjected to the gas load matched with the gas load data.
With reference to the second aspect of the present application, in a fourth possible implementation manner of the second aspect of the present application, the acquiring unit is specifically configured to:
acquiring initial stratum ground stress data of a salt layer where a target tubular column is located;
based on the initial stratum ground stress data, generating target stratum ground stress data by combining the predicted stratum ground stress change;
acquiring initial gas load data of the transmission gas in the target tubular column;
based on the initial gas load data, target gas load data is generated in combination with the predicted gas load change.
With reference to the second aspect of the present application, in a fifth possible implementation manner of the second aspect of the present application, the monitoring unit is specifically configured to:
in the working process of the shrinkage simulation device, deformation data of the middle hole are monitored through the linear displacement sensor, two ends of the linear displacement sensor are in contact with the wall of the middle hole, in the deformation process of the middle hole, the wall of the middle hole promotes corresponding change of the length of the linear displacement sensor, the linear position sensor records the change of the length of the linear position sensor, and a diameter monitoring result is obtained and is used as deformation data.
With reference to the second aspect of the present application, in a sixth possible implementation manner of the second aspect of the present application, the monitoring unit is specifically configured to:
in the working process of the shrinkage simulation device, deformation data of the middle hole are monitored through the annular displacement sensor, the annular body of the annular displacement sensor is contacted with the wall of the middle hole, in the deformation process of the middle hole, the wall of the middle hole promotes corresponding change of the length of the annular displacement sensor, the annular displacement sensor records the change of the length of the annular displacement sensor, and a perimeter monitoring result is obtained and is used as deformation data.
In a third aspect, the present application provides a shrinkage data processing apparatus for an injection and production string, comprising a processor and a memory, the memory having a computer program stored therein, the processor executing the method provided by the first aspect of the present application or any one of the possible implementations of the first aspect of the present application when calling the computer program in the memory.
In a fourth aspect, the present application provides a shrinkage data processing system of an injection and production string, the system comprising a shrinkage simulation device and a shrinkage data processing apparatus of the injection and production string as provided in the third aspect of the present application.
In a fifth aspect, the present application provides a computer readable storage medium storing a plurality of instructions adapted to be loaded by a processor to perform the method provided in the first aspect of the present application or any one of the possible implementations of the first aspect of the present application.
From the above, the present application has the following advantages:
aiming at shrinkage prediction of the 'naked eye section', under the condition that a shrinkage simulation device is configured, stratum ground stress data of a salt layer where the target tubular column is positioned, namely the 'naked eye section', and gas load data of transmission gas of the stratum ground stress data are acquired, then acting force corresponding to a rock core acquired by the 'naked eye section' by the shrinkage simulation device is triggered on the basis of the stratum ground stress data and the stratum ground stress data, the stratum ground stress data and the gas load data, acting force received by the 'naked eye section' in the working process is simulated, shrinkage data of the target tubular column are determined according to deformation data of a middle hole of the monitored rock core, shrinkage conditions of the target tubular column are well restored in the shrinkage simulation process, and therefore accurate prediction and analysis can be made on shrinkage conditions of the target tubular column, accurate and effective data support is provided for working evaluation processing of an injection and production tubular column, and normal operation of a salt cavern gas storage is guaranteed.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a contraction simulation device according to the present application;
FIG. 2 is a schematic structural view of a core according to the present disclosure;
FIG. 3 is a schematic flow chart of a method of processing shrinkage data of an injection and production string according to the present application;
FIG. 4 is a schematic diagram of a shrinkage data processing apparatus for an injection string according to the present disclosure;
fig. 5 is a schematic structural view of a shrinkage data processing device of the injection and production string of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
The terms first, second and the like in the description and in the claims of the present application and in the above-described figures, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments described herein may be implemented in other sequences than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or modules is not necessarily limited to those steps or modules that are expressly listed or inherent to such process, method, article, or apparatus. The naming or numbering of the steps in the present application does not mean that the steps in the method flow must be executed according to the time/logic sequence indicated by the naming or numbering, and the execution sequence of the steps in the flow that are named or numbered may be changed according to the technical purpose to be achieved, so long as the same or similar technical effects can be achieved.
The division of the modules in the present application is a logical division, and may be implemented in another manner in practical application, for example, a plurality of modules may be combined or integrated in another system, or some features may be omitted or not implemented, and in addition, coupling or direct coupling or communication connection between the modules that are shown or discussed may be through some interfaces, and indirect coupling or communication connection between the modules may be in an electrical or other similar form, which is not limited in this application. The modules or sub-modules described as separate components may or may not be physically separate, or may be distributed in a plurality of circuit modules, and some or all of the modules may be selected according to actual needs to achieve the purposes of the present application.
The background content to which this application relates is first described.
The shrinkage data processing method, the shrinkage data processing device and the computer-readable storage medium of the injection and production string can be applied to shrinkage data processing equipment of the injection and production string and used for determining shrinkage data of 'naked eye sections' through simulation processing, so that accurate and effective data support can be provided for work evaluation processing of the injection and production string, and normal operation of salt cavern gas storage is guaranteed.
According to the shrinkage data processing method of the injection and production string, an execution main body of the shrinkage data processing method can be an injection and production string shrinkage data processing device, or shrinkage data processing Equipment of different types of injection and production strings such as a server, a physical host or User Equipment (UE) and the like of the injection and production string shrinkage data processing device are integrated. The shrinkage data processing device of the injection and production string can be realized in a hardware or software mode, and the UE can be specifically terminal equipment such as a smart phone, a tablet personal computer, a notebook computer, a desktop computer or a personal digital assistant (Personal Digital Assistant, PDA) and the like, and the shrinkage data processing equipment of the injection and production string can be arranged in an equipment cluster mode.
The shrinkage simulation device can comprise shrinkage data processing equipment of the injection and production pipe column, or can be independent of the shrinkage data processing equipment of the injection and production pipe column, and forms a shrinkage data processing system of the injection and production pipe column with the shrinkage data processing equipment of the injection and production pipe column, and the shrinkage condition of the target pipe column can be accurately predicted and analyzed through simulation processing.
Before describing the shrinkage data processing method of the injection and production string, the shrinkage simulation device on which the shrinkage simulation processing of the present application depends is described.
It can be appreciated that the shrinkage simulation device related to the application is a hardware device, and is used for simulating the acting force of a target tubular column, namely an 'open hole section', in an underground environment in a ground working scene, so that the shrinkage condition of the 'open hole section' can be simulated and restored according to deformation data monitored in the action process and the simulation process, and further shrinkage data can be determined.
Specifically, the processing object of the shrinkage simulation device is a sample of an "naked eye section", namely a core (a sample) collected from a salt layer where the "naked eye section" is located, and the core is processed and provided with a middle hole, so that the "naked eye section" is restored from the stratum structure and the shape structure.
The shrinkage simulation device specifically restores the acting force which is applied to the 'open hole section' in the underground environment and can cause shrinkage by applying the relevant acting force to the rock core, so that the shrinkage condition of the 'open hole section' can be simulated.
Specifically, in the present application, the acting force applied to the core by the shrinkage simulation device is mainly two kinds, namely, the first kind, the acting force which applies the stress matching of the stratum to the core; second, a gas load data-matching force is applied to the core according to the intermediate hole of the target string configuration.
It will be appreciated that for a target string, i.e. "open hole section", the application considers that it is in a practical underground environment mainly subjected to the ground stress exerted by the layer of salt located from the outside of the string and the gas load exerted by the transport gas (e.g. natural gas) from the inside of the string.
Therefore, the shrinkage simulation device can simulate the salt layer where the 'open hole section' is positioned from the outside of the rock core on one hand, apply the stress matching acting force of stratum ground stress to the rock core, and simulate the transmission gas in the 'open hole section' on the other hand, apply the gas load data matching acting force to the rock core according to the middle hole of the target tubular column configuration.
Specifically, the shrinkage simulation device can complete the application of the relevant acting force by adjusting the environment of the core inside and outside.
For example, from the gas environment, the corresponding gas is injected into the middle hole of the core configured according to the target tubular column, so that the transmission gas of the 'naked eye section' in the working process is reduced, and the purpose of applying the acting force matched with the gas load data to the middle hole of the core configured according to the target tubular column is achieved;
for example, from a liquid environment, hydraulic oil is injected to the outside of the rock core, so that the salt layer of the 'naked eye section' in the working process is restored, and the purpose of simulating the salt layer of the 'naked eye section' and applying the action force of stratum-earth stress matching to the rock core is achieved.
The shrinkage simulation device can be particularly combined with a gas environment, a liquid environment and even a fixed environment to adjust the environment of the core in and out, so that the adjustment of related acting force is completed, and the working scene of the 'naked eye section' in the underground environment is restored and simulated.
The specific environment type of the environment in which the core is located, or the environment adjustment mode, obviously can be adjusted according to the actual situation and the actual needs, so the application is not particularly limited.
For ease of understanding, the present application may also provide an example of a contraction simulation device as a supplemental description.
Referring to a schematic structural diagram of the shrinkage simulation device of the present application shown in fig. 1, in an exemplary structure of the shrinkage simulation device shown in fig. 1, 1 is a middle hole on a core, 2 is a core, 3 is a pressure head, 4 is an upper steel plate, 5 is an exhaust gas tank, 6 is a lower steel plate, 7 is a base, 8 is a valve, 9 is a cylinder, 10 is a triaxial chamber, 11 is a servo hydraulic switch, 12 is an oil tank, and 13 is a valve, wherein, as a supplement, reference may also be made to a schematic structural diagram of the core of the present application shown in fig. 2.
It can be found that, for better restoring the environment of the "naked eye section", and for more convenient adjustment of the environment of the "naked eye section", the device can have a stroke closed structure, that is, a closed space exists, specifically, two closed spaces can be formed according to two acting forces to be applied, one is a closed space corresponding to a hydraulic oil environment, the other is a closed space corresponding to a gas environment, and the two spaces can adjust the corresponding acting force according to the volumes of injected hydraulic oil and gas.
In the working process, the prepared rock core can be fixed at the bottom of the triaxial cell in a matched manner, and a small force (about 0.5-1 kN) can be applied to the axial direction of the rock core through the pressure head, the upper steel plate and the lower steel plate, so that the rock core is contacted with the axial loading device, and the rock core is fixed.
Then, on one hand, confining pressure can be applied to the core to a preset value through hydraulic oil in a triaxial chamber, the hydraulic oil load in the triaxial chamber can be controlled through a servo hydraulic switch, the source of the hydraulic oil is in an oil tank, and on the other hand, gas in a cylinder can be injected into a hole in the middle of the core through a valve to apply gas load, wherein the values of the confining pressure and the gas load can be determined according to the 'naked eye section' design of a salt cavern gas storage, and the gas load applied to the middle hole is smaller than the confining pressure corresponding to an actual underground environment, and in the process, deformation of the middle hole of the core can be recorded to provide data support for the subsequent analysis of shrinkage data.
The processing of the rock core is achieved by taking a salt layer where an 'open hole section' of a salt cavern gas storage is located, and a vertically penetrating hole is drilled in the middle of the rock core. In actual operation, the rock cores can be processed by adopting a linear cutting processing mode in consideration of water solubility and hygroscopicity of the rock salt, and a plurality of rock cores can be processed in consideration of the strength of rock materials and the discreteness of mechanical properties, so that repeated tests are convenient to carry out.
Secondly, in the shrinkage simulation device, considering that the length from the salt layer where the 'naked eye section' is positioned to the ground surface is far longer than the length (generally 10-20 m) of the 'naked eye section', based on the plane strain problem assumption in the elastography, the end of the 'naked eye section' connected with the ground surface is assumed to be fixedly restrained, the lower part of the 'naked eye section' is the top of the salt cavity, and free deformation is allowed, therefore, the lower end of the core is fixed on a core holder so as to limit the deformation of the core in the vertical direction
In addition, because the shrinkage simulation device involves injecting compressed gas into the middle hole of the core to apply a gas load, in order to ensure the stability of the gas load and prevent gas leakage, the whole device is generally required to be subjected to air tightness inspection in advance, so that the tightness of an internal closed space is ensured, and of course, the hydraulic oil can also involve tightness inspection.
On the basis of the simple description of the shrinkage simulation device, the shrinkage data processing method of the injection and production string provided by the application is introduced.
Referring to fig. 2, fig. 2 shows a schematic flow chart of a method for processing shrinkage data of an injection and production string according to the present application, and the method for processing shrinkage data of an injection and production string provided by the present application may specifically include the following steps S301 to S305:
Step S301, stratum ground stress data of a salt layer where a target pipe column is located is obtained, wherein the target pipe column is a pipe column part formed by a salt layer stratum structure in an injection and production pipe column of a salt cavern gas storage, and the injection and production pipe column of the salt cavern gas storage also comprises a metal pipe column connected with the target pipe column;
it can be understood that the "open hole section" of the target pipe string, i.e. the injection and production pipe string of the salt cavern gas storage, is arranged to prevent the whole injection and production pipe string from being pulled and damaged due to the tensile strain at the top of the salt cavity, is obtained by directly hollowing out the salt layer stratum of the underground environment, forms a hollow pipe, and can be connected with the metal pipe string to form the whole injection and production pipe string.
Before the "naked eye section" is subjected to simulation processing, stratum ground stress data of a salt layer where the "naked eye section" is located can be obtained in advance as a data basis according to acting force required to be applied in the simulation processing process, the stratum ground stress data are used for describing stratum ground stress of the salt layer where the "naked eye section" is located, and it can be understood that the stratum ground stress data can correspond to stratum ground stress of one time point or stratum ground stress of different time points, and can be specifically adjusted according to actual needs.
And (3) measuring stratum ground stress data, namely configuring a corresponding measuring component according to a specifically adopted ground stress measuring scheme, and measuring stratum ground stress data at an 'open hole section'.
The formation earth stress data may be obtained by real-time measurement or data retrieval.
Further, the processing of the data may be involved.
As an exemplary implementation manner, initial formation ground stress data of a salt layer where a target tubular column is located may be obtained first, and then, based on the initial formation ground stress data, the predicted formation ground stress change is continuously combined to generate target formation ground stress data.
It can be understood that, the initial formation ground stress data herein may be real-time measurement processing or scheduling processing of data, and after the initial formation ground stress data is obtained, the application considers that the actually collected formation ground stress data may have a small data volume and a small number of data samples, and at this time, the data may be enhanced and expanded to expand the data volume thereof, and specifically, new formation ground stress data may be generated in combination with the predicted formation ground stress change.
The predicted stratum ground stress change can be specifically configured by combining different events which may occur in practical application, such as events of stratum creep, adjustment of the position of an open hole section and the like, so that stratum ground stress data with different and more data quantities can be configured according to different prediction requirements.
Step S302, acquiring gas load data of the transmission gas in the target tubular column;
besides stratum ground stress data, according to the acting force required to be applied in the simulation processing process, the gas load data of the gas transmitted in the 'naked eye section' can be obtained in advance as a data basis, the gas load data are used for describing the gas load of the gas transmitted in the 'naked eye section', it can be understood that the gas load data can correspond to stratum ground stress at one time point or stratum ground stress at different time points, and particularly can be adjusted according to actual needs, and the time points generally coincide with the stratum ground stress data.
The measurement of the gas load data can be carried out by configuring corresponding measuring components according to a specific adopted gas load measuring scheme, and measuring the gas load data of the transmission gas in the 'naked eye section'; or, as the gas transmitted in the 'naked eye section' is the natural gas which is a working object in the normal operation process of the salt cavern gas storage, the monitoring of factors such as gas flow and the like can be involved in the normal operation, and therefore, the gas load data can be directly extracted from the database.
Here, the acquisition of the gas load data may be either a real-time measurement process or a data acquisition process.
Similar to formation earth stress data, data processing may also be involved.
As yet another exemplary implementation, initial gas load data for the transport gas within the target string may be acquired first; then, based on the initial gas load data, target gas load data is generated in combination with the predicted gas load change.
Step S303, after the rock core acquired by the salt layer of the target tubular column is arranged in the shrinkage simulation device, triggering the shrinkage simulation device to apply the action force matched with the stratum ground stress data to the rock core and apply the action force matched with the gas load data to the rock core according to the middle hole of the target tubular column;
after the stratum ground stress data and the gas load data are obtained, the shrinkage simulation device can be controlled based on the stratum ground stress data and the gas load data to trigger the shrinkage simulation device to apply corresponding acting force to the rock core, and the working scene of the 'naked eye section' in the underground environment is simulated and restored.
For basic description of the contraction simulation device, reference should be made to the foregoing, and detailed description thereof will be omitted.
As an implementation suitable for practical use, the contraction simulation device may specifically combine a liquid environment and a gas environment to perform the application of the relevant forces.
For example, the shrinkage simulation device may be specifically triggered to inject hydraulic oil into the internal closed cavity, so that the core is subjected to a hydraulic oil load matched with the formation earth stress data, and the shrinkage simulation device may be triggered to inject gas into the middle hole of the core configured according to the target string, so that the middle hole is subjected to a gas load matched with the gas load data.
On this basis, the specific acting force application process can specifically include:
1. hydraulic oil injection corresponding to formation earth stress
According to the volume of a closed cavity in the shrinkage simulation device, calculating the hydraulic oil injection quantity required by the hydraulic oil load matched with the stratum ground stress data of the core;
according to the injection quantity of the hydraulic oil, a first control instruction is generated, and the first control instruction is sent to a servo hydraulic switch configured on the oil tank, so that the servo hydraulic switch adjusts the working state, the hydraulic oil stored in the oil tank is injected into a closed cavity, and the rock core is subjected to the hydraulic oil load matched with stratum ground stress data.
2. Gas injection corresponding to gas load
Calculating the gas injection quantity required by the gas load matched with the gas load data of the middle hole according to the volume of the middle hole configured by the core according to the target tubular column;
And generating a second control instruction according to the gas injection quantity, and sending the second control instruction to a valve configured by the cylinder, so that the valve adjusts the working state, and injecting the gas stored in the cylinder into the middle hole, so that the middle hole is subjected to the gas load matched with the gas load data.
As can be seen from the above two force application processes, for the injection of hydraulic oil/gas, the application of force is realized by firstly determining the injection amount by combining the volume of the closed space and the stratum ground stress/gas load required to be applied, and then generating the corresponding control command after determining the injection amount to trigger the injection of the corresponding hydraulic oil/gas.
In addition, it can be further seen that the shrinkage simulation device related to the present application has no complex data processing on the body (such as the structure shown in fig. 1), and the processing of the related working instructions related to the shrinkage simulation device can be performed by an external device, that is, the shrinkage data processing device of the injection and production string provided by the present application, and of course, the shrinkage simulation device body can be understood to be included in the shrinkage data processing device of the injection and production string in some cases.
Step S304, monitoring deformation data of the middle hole in the working process of the shrinkage simulation device;
When the contraction simulation device applies relevant acting force to the rock core, and simulates and restores the situation of the 'open hole section' in the underground environment, deformation data of a middle hole on the rock core can be acquired and monitored through relevant sensors.
It will be appreciated that the deformation data is raw shrinkage data, the data type of which is related to the sensing type of the specific sensor, and data processing may be performed later, and data type conversion, data integration, data prediction, etc. may be involved in the data processing process, so as to obtain shrinkage data that may be output finally.
As still another practical implementation manner, in the working process of the contraction simulation device, the deformation data of the middle hole can be monitored through the linear displacement sensor, two ends of the linear displacement sensor are in contact with the hole wall of the middle hole, in the deformation process of the middle hole, the hole wall of the middle hole causes the length of the linear displacement sensor to change correspondingly, and the linear position sensor records the change of the length of the linear displacement sensor to obtain a diameter monitoring result as deformation data.
As a further practical implementation manner, in the working process of the shrinkage simulation device, the deformation data of the middle hole can be monitored through the annular displacement sensor, the annular body of the annular displacement sensor is in contact with the hole wall of the middle hole, in the deformation process of the middle hole, the hole wall of the middle hole causes the length of the annular displacement sensor to change correspondingly, and the annular displacement sensor records the change of the length of the annular displacement sensor to obtain the perimeter monitoring result as the deformation data.
It will be appreciated that in addition to the linear position sensor and the annular displacement sensor, in actual operation, other types of sensors, such as an infrared sensor, an ultrasonic sensor, even an image sensor, etc. may be configured, and the specific sensor type and the monitoring scheme thereof may be adjusted according to actual requirements.
For example, the selection can be made among the types of sensors that the contraction simulation device can accommodate and can be conveniently configured, and the type of sensor can be determined from the aspect of monitoring accuracy, for example.
Step S305, determining shrinkage data of the target tubular column according to the deformation data.
After the deformation data of the middle hole on the rock core is obtained through monitoring of the related sensor, it can be understood that the middle hole corresponds to an open hole section, deformation, namely shrinkage, of the middle hole is simulated and restored, so that the deformation data can be subjected to data processing, analysis to obtain the open hole section, namely shrinkage data of a target tubular column, and output.
In the data processing process, the data type conversion, data integration, data prediction and other processes can be involved, and the analysis of the contraction condition of the 'naked eye segment' can be completed on the basis of the simulation process.
In summary, for the shrinkage prediction of the "naked eye section", under the condition that the shrinkage simulation device is configured, the method acquires stratum ground stress data of the salt layer where the target tubular column is located, namely the "naked eye section", and gas load data of transmission gas of the stratum ground stress data, triggers acting forces corresponding to the rock core collected by the shrinkage simulation device to the "naked eye section" based on the stratum ground stress data and the gas load data, simulates acting forces received in the working process of the "naked eye section", and determines shrinkage data of the target tubular column according to the monitored deformation data of the middle hole of the rock core.
The application provides an introduction of a shrinkage data processing method of an injection and production string, and in order to facilitate better implementation of the shrinkage data processing method of the injection and production string provided by the application, the application also provides a shrinkage data processing device of the injection and production string from the angle of a functional module.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a shrinkage data processing apparatus of an injection and production string according to the present application, in which the shrinkage data processing apparatus 400 of an injection and production string may specifically include the following structure:
An obtaining unit 401, configured to obtain formation ground stress data of a salt layer where a target pipe column is located, where the target pipe column is a pipe column part formed by a salt layer stratum structure in an injection and production pipe column of a salt cavern gas storage, and the injection and production pipe column of the salt cavern gas storage further includes a metal pipe column connected with the target pipe column;
an acquiring unit 401, configured to acquire gas load data of a transmission gas in the target column;
the triggering unit 402 is configured to trigger the shrinkage simulation device to apply a stress matching acting force of the stratum to the core and apply a gas load data matching acting force to the core according to a middle hole configured by the target string after the core acquired by the salt layer of the target string is installed in the shrinkage simulation device;
a monitoring unit 403, configured to monitor deformation data of the middle hole during operation of the contraction simulation device;
and a determining unit 404 for determining shrinkage data of the target tubular string according to the deformation data.
In an exemplary implementation, the triggering unit 402 is specifically configured to:
triggering the shrinkage simulation device to inject hydraulic oil into the internal closed cavity so that the rock core is subjected to the hydraulic oil load matched with the stratum ground stress data, and triggering the shrinkage simulation device to inject gas into the middle hole of the rock core according to the target tubular column configuration so that the middle hole is subjected to the gas load matched with the gas load data.
In yet another exemplary implementation, the triggering unit 402 is specifically configured to:
according to the volume of a closed cavity in the shrinkage simulation device, calculating the hydraulic oil injection quantity required by the hydraulic oil load matched with the stratum ground stress data of the core;
according to the injection quantity of the hydraulic oil, a first control instruction is generated, and the first control instruction is sent to a servo hydraulic switch configured on the oil tank, so that the servo hydraulic switch adjusts the working state, the hydraulic oil stored in the oil tank is injected into a closed cavity, and the rock core is subjected to the hydraulic oil load matched with stratum ground stress data.
In yet another exemplary implementation, the triggering unit 402 is specifically configured to:
calculating the gas injection quantity required by the gas load matched with the gas load data of the middle hole according to the volume of the middle hole configured by the core according to the target tubular column;
and generating a second control instruction according to the gas injection quantity, and sending the second control instruction to a valve configured by the cylinder, so that the valve adjusts the working state, and injecting the gas stored in the cylinder into the middle hole, so that the middle hole is subjected to the gas load matched with the gas load data.
In yet another exemplary implementation, the obtaining unit 401 is specifically configured to:
Acquiring initial stratum ground stress data of a salt layer where a target tubular column is located;
based on the initial stratum ground stress data, generating target stratum ground stress data by combining the predicted stratum ground stress change;
acquiring initial gas load data of the transmission gas in the target tubular column;
based on the initial gas load data, target gas load data is generated in combination with the predicted gas load change.
In yet another exemplary implementation, the monitoring unit 403 is specifically configured to:
in the working process of the shrinkage simulation device, deformation data of the middle hole are monitored through the linear displacement sensor, two ends of the linear displacement sensor are in contact with the wall of the middle hole, in the deformation process of the middle hole, the wall of the middle hole promotes corresponding change of the length of the linear displacement sensor, the linear position sensor records the change of the length of the linear position sensor, and a diameter monitoring result is obtained and is used as deformation data.
In yet another exemplary implementation, the monitoring unit 403 is specifically configured to:
in the working process of the shrinkage simulation device, deformation data of the middle hole are monitored through the annular displacement sensor, the annular body of the annular displacement sensor is contacted with the wall of the middle hole, in the deformation process of the middle hole, the wall of the middle hole promotes corresponding change of the length of the annular displacement sensor, the annular displacement sensor records the change of the length of the annular displacement sensor, and a perimeter monitoring result is obtained and is used as deformation data.
The present application further provides a shrinkage data processing device for an injection and production string from a hardware structure perspective, referring to fig. 5, fig. 5 shows a schematic structural diagram of the shrinkage data processing device for an injection and production string of the present application, specifically, the processing device of the present application may include a processor 501, a memory 502, and an input/output device 503, where the processor 501 is configured to implement steps of a shrinkage data processing method for an injection and production string in a corresponding embodiment of fig. 1 when executing a computer program stored in the memory 502; alternatively, the processor 501 is configured to implement the functions of each unit in the corresponding embodiment of fig. 4 when executing the computer program stored in the memory 502, and the memory 502 is configured to store the computer program required for the processor 501 to execute the method for processing the shrinkage data of the injection string in the corresponding embodiment of fig. 1.
By way of example, a computer program may be partitioned into one or more modules/units that are stored in the memory 502 and executed by the processor 501 to complete the present application. One or more of the modules/units may be a series of computer program instruction segments capable of performing particular functions to describe the execution of the computer program in a computer device.
The shrinkage data processing equipment of the injection and production string can include, but is not limited to, a processor 501, a memory 502, and an input-output device 503. It will be appreciated by those skilled in the art that the illustration is merely an example of a shrinkage data processing apparatus for an injection and production string and is not limiting of the shrinkage data processing apparatus for an injection and production string, and may include more or fewer components than shown, or may be combined with certain components, or different components, e.g., the shrinkage data processing apparatus for an injection and production string may further include a network access device, a bus, etc., through which the processor 501, the memory 502, the input-output device 503, etc. are connected.
The processor 501 may be a central processing unit (Central Processing Unit, CPU), but may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), field programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. The general purpose processor may be a microprocessor or the processor may be any conventional processor or the like, the processor being the control center of the production string shrinkage data processing device, and various interfaces and lines being used to connect the various parts of the overall device.
The memory 502 may be used to store computer programs and/or modules, and the processor 501 may implement various functions of the computer device by executing or executing the computer programs and/or modules stored in the memory 502, and invoking data stored in the memory 502. The memory 502 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, application programs required for at least one function, and the like; the storage data area may store data created from the use of a production string's contracted data processing device, etc. In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as a hard disk, memory, plug-in hard disk, smart Media Card (SMC), secure Digital (SD) Card, flash Card (Flash Card), at least one disk storage device, flash memory device, or other volatile solid-state storage device.
The processor 501, when configured to execute a computer program stored in the memory 502, may specifically implement the following functions:
the method comprises the steps of obtaining stratum ground stress data of a salt layer where a target pipe column is located, wherein the target pipe column is a pipe column part formed by a salt layer stratum structure in an injection and production pipe column of a salt cavern gas storage, and the injection and production pipe column of the salt cavern gas storage also comprises a metal pipe column connected with the target pipe column;
Acquiring gas load data of the transmission gas in the target tubular column;
after a rock core acquired by a salt layer of a target tubular column is arranged in a shrinkage simulation device, triggering the shrinkage simulation device to apply a force matched with stratum ground stress data to the rock core and apply a force matched with gas load data to the rock core according to a middle hole of the target tubular column;
monitoring deformation data of the middle hole in the working process of the shrinkage simulation device;
and determining shrinkage data of the target tubular column according to the deformation data.
In addition, as mentioned above, the shrinkage simulation device may include the shrinkage data processing equipment of the injection and production string, or may be independent from the shrinkage data processing equipment of the injection and production string, and form a shrinkage data processing system of the injection and production string with the shrinkage data processing equipment of the injection and production string, that is, the application may also provide a shrinkage data processing system of the injection and production string, where the system includes the shrinkage data processing equipment of the injection and production string and the shrinkage simulation device.
It will be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process of the shrinkage data processing apparatus, device, system and corresponding units of the injection and production string described above may refer to the description of the shrinkage data processing method of the injection and production string in the corresponding embodiment as shown in fig. 3, and will not be repeated herein.
Those of ordinary skill in the art will appreciate that all or a portion of the steps of the various methods of the above embodiments may be performed by instructions, or by instructions controlling associated hardware, which may be stored in a computer-readable storage medium and loaded and executed by a processor.
For this reason, the present application provides a computer readable storage medium, in which a plurality of instructions capable of being loaded by a processor are stored, so as to execute the steps of the method for processing shrinkage data of an injection and production string according to the corresponding embodiment of fig. 3, and specific operations may refer to the description of the method for processing shrinkage data of an injection and production string according to the corresponding embodiment of fig. 3, which is not repeated herein.
Wherein the computer-readable storage medium may comprise: read Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic or optical disk, and the like.
Because the instructions stored in the computer readable storage medium can execute the steps of the shrinkage data processing method of the injection string in the embodiment corresponding to fig. 3, the beneficial effects that can be achieved by the shrinkage data processing method of the injection string in the embodiment corresponding to fig. 3 can be achieved, which are detailed in the foregoing description and are not repeated herein.
The above detailed description of the shrinkage data processing method, device, equipment, system and computer readable storage medium of the injection and production string provided by the present application, the specific examples are applied to illustrate the principles and embodiments of the present application, and the above description of the examples is only used to help understand the method and core ideas of the present application; meanwhile, those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present application, and the present description should not be construed as limiting the present application in view of the above.
Claims (6)
1. A method of processing shrinkage data for an injection and production string, the method comprising:
the method comprises the steps of obtaining stratum ground stress data of a salt layer where a target pipe column is located, wherein the target pipe column is a pipe column part formed by a salt layer stratum structure in an injection and production pipe column of a salt cavern gas storage, and the injection and production pipe column of the salt cavern gas storage also comprises a metal pipe column connected with the target pipe column;
acquiring gas load data of the transmission gas in the target tubular column;
after a rock core acquired by a salt layer of the target tubular column is arranged in a shrinkage simulation device, triggering the shrinkage simulation device to apply an acting force matched with stratum ground stress data to the rock core, and applying an acting force matched with the gas load data to the rock core according to a middle hole of the target tubular column;
Monitoring deformation data of the middle hole in the working process of the shrinkage simulation device;
determining shrinkage data of the target tubular column according to the deformation data;
the triggering the shrinkage simulation device to apply the acting force matched with the stratum ground stress data to the core and the triggering the shrinkage simulation device to apply the acting force matched with the gas load data to the core according to the middle hole of the target tubular column configuration specifically comprises the following steps:
triggering the contraction simulation device to inject hydraulic oil into an internal closed cavity so that the rock core is subjected to the hydraulic oil load matched with the stratum ground stress data, and triggering the contraction simulation device to inject gas into a middle hole of the rock core configured according to the target tubular column so that the middle hole is subjected to the gas load matched with the gas load data;
triggering the shrinkage simulation device to inject hydraulic oil into the internal closed cavity so that the rock core is subjected to the hydraulic oil load matched with the stratum ground stress data, wherein the method comprises the following steps of:
according to the volume of the closed cavity in the shrinkage simulation device, calculating the hydraulic oil injection quantity required by the core subjected to the hydraulic oil load matched with the stratum ground stress data;
Generating a first control command according to the injection quantity of the hydraulic oil, and sending the first control command to a servo hydraulic switch configured on an oil tank, so that the servo hydraulic switch adjusts a working state, and injecting the hydraulic oil stored in the oil tank into the closed cavity, so that the rock core is subjected to a hydraulic oil load matched with the stratum ground stress data;
triggering the shrinkage simulation device to inject gas into the middle hole of the core according to the target tubular column configuration so that the middle hole is subjected to the gas load matched with the gas load data, wherein the method comprises the following steps:
calculating the gas injection quantity required by the gas load matched with the gas load data of the middle hole according to the volume of the middle hole configured by the target tubular column of the core;
generating a second control instruction according to the gas injection quantity, and sending the second control instruction to a valve configured by a cylinder, so that the valve adjusts a working state, and injecting the gas stored in the cylinder into the middle hole, so that the middle hole receives a gas load matched with the gas load data;
the obtaining the stratum ground stress data of the salt layer where the target tubular column is located comprises the following steps:
Acquiring initial stratum ground stress data of a salt layer where the target tubular column is located;
based on the initial stratum ground stress data, generating target stratum ground stress data by combining the predicted stratum ground stress change;
the acquiring the gas load data of the transmission gas in the target tubular column comprises the following steps:
acquiring initial gas load data of the transmission gas in the target pipe column;
and generating target gas load data by combining the predicted gas load change on the basis of the initial gas load data.
2. The method of claim 1, wherein monitoring deformation data of the intermediate hole during operation of the contraction simulation device comprises:
in the working process of the shrinkage simulation device, deformation data of the middle hole are monitored through a linear displacement sensor, two ends of the linear displacement sensor are in contact with the hole wall of the middle hole, in the deformation process of the middle hole, the hole wall of the middle hole promotes the length of the linear displacement sensor to change correspondingly, and the linear displacement sensor records the change of the length of the linear displacement sensor to obtain a diameter monitoring result which is used as the deformation data.
3. The method of claim 1, wherein monitoring deformation data of the intermediate hole during operation of the contraction simulation device comprises:
in the working process of the shrinkage simulation device, deformation data of the middle hole are monitored through an annular displacement sensor, an annular body of the annular displacement sensor is in contact with the hole wall of the middle hole, in the deformation process of the middle hole, the hole wall of the middle hole promotes the length of the annular displacement sensor to change correspondingly, and the annular displacement sensor records the change of the length of the annular displacement sensor to obtain a perimeter monitoring result as the deformation data.
4. A shrinkage data processing apparatus for an injection and production string, the apparatus comprising:
the system comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring stratum ground stress data of a salt layer where a target pipe column is located, the target pipe column is a pipe column part formed by a salt layer stratum structure in an injection and production pipe column of a salt cavern gas storage, and the injection and production pipe column of the salt cavern gas storage also comprises a metal pipe column connected with the target pipe column;
the acquisition unit is also used for acquiring gas load data of the transmission gas in the target tubular column;
The triggering unit is used for triggering the shrinkage simulation device to apply the stratum ground stress matching acting force to the rock core after the rock core acquired by the salt layer of the target tubular column is arranged in the shrinkage simulation device, and applying the gas load data matching acting force to the rock core according to the middle hole of the target tubular column configuration;
the monitoring unit is used for monitoring deformation data of the middle hole in the working process of the shrinkage simulation device;
a determining unit, configured to determine shrinkage data of the target tubular column according to the deformation data;
the triggering unit is specifically configured to:
triggering the contraction simulation device to inject hydraulic oil into an internal closed cavity so that the rock core is subjected to the hydraulic oil load matched with the stratum ground stress data, and triggering the contraction simulation device to inject gas into a middle hole of the rock core configured according to the target tubular column so that the middle hole is subjected to the gas load matched with the gas load data;
the triggering unit is specifically configured to:
according to the volume of the closed cavity in the shrinkage simulation device, calculating the hydraulic oil injection quantity required by the core subjected to the hydraulic oil load matched with the stratum ground stress data;
Generating a first control command according to the injection quantity of the hydraulic oil, and sending the first control command to a servo hydraulic switch configured on an oil tank, so that the servo hydraulic switch adjusts a working state, and injecting the hydraulic oil stored in the oil tank into the closed cavity, so that the rock core is subjected to a hydraulic oil load matched with the stratum ground stress data;
the triggering unit is specifically configured to:
calculating the gas injection quantity required by the gas load matched with the gas load data of the middle hole according to the volume of the middle hole configured by the target tubular column of the core;
generating a second control instruction according to the gas injection quantity, and sending the second control instruction to a valve configured by a cylinder, so that the valve adjusts a working state, and injecting the gas stored in the cylinder into the middle hole, so that the middle hole receives a gas load matched with the gas load data;
the acquisition unit is specifically configured to:
acquiring initial stratum ground stress data of a salt layer where the target tubular column is located;
based on the initial stratum ground stress data, generating target stratum ground stress data by combining the predicted stratum ground stress change;
Acquiring initial gas load data of the transmission gas in the target pipe column;
and generating target gas load data by combining the predicted gas load change on the basis of the initial gas load data.
5. A shrinkage data processing apparatus for an injection string, comprising a processor and a memory, the memory having a computer program stored therein, the processor executing the method of any of claims 1 to 3 when calling the computer program in the memory.
6. A shrinkage data processing system for an injection and production string, the system comprising a shrinkage simulation device and the shrinkage data processing apparatus for an injection and production string of claim 5.
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| CN103852239A (en) * | 2012-11-29 | 2014-06-11 | 中国石油天然气集团公司 | Physical simulation apparatus and method of convection and diffusion of salt-cavern gas storage cavity |
| CN103487326A (en) * | 2013-10-11 | 2014-01-01 | 中国石油天然气股份有限公司勘探开发研究院廊坊分院 | Multi-cycle alternating stress cap rock simulation apparatus |
| CN207111065U (en) * | 2017-09-07 | 2018-03-16 | 中国石油大学(华东) | A kind of radial direction water jet aids in fracture simulation device |
| CN108489799A (en) * | 2018-02-27 | 2018-09-04 | 中国科学院武汉岩土力学研究所 | A kind of three axis of rock gas/naked triaxial compression test device, system and method |
| CN110005407A (en) * | 2019-05-08 | 2019-07-12 | 中国科学院武汉岩土力学研究所 | Salt hole air reserved storeroom method for estimating stability |
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