CN114509344A - Parameter determination method and device for sealing plug of underground water-sealed petroleum cavern - Google Patents
Parameter determination method and device for sealing plug of underground water-sealed petroleum cavern Download PDFInfo
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- 238000007789 sealing Methods 0.000 title claims abstract description 365
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- 239000003208 petroleum Substances 0.000 title abstract description 17
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- 238000004458 analytical method Methods 0.000 claims description 73
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- 230000015654 memory Effects 0.000 claims description 6
- 238000010008 shearing Methods 0.000 claims description 6
- 230000004044 response Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 14
- 238000010276 construction Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 8
- 239000004567 concrete Substances 0.000 description 4
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- 239000011150 reinforced concrete Substances 0.000 description 3
- NAWXUBYGYWOOIX-SFHVURJKSA-N (2s)-2-[[4-[2-(2,4-diaminoquinazolin-6-yl)ethyl]benzoyl]amino]-4-methylidenepentanedioic acid Chemical compound C1=CC2=NC(N)=NC(N)=C2C=C1CCC1=CC=C(C(=O)N[C@@H](CC(=C)C(O)=O)C(O)=O)C=C1 NAWXUBYGYWOOIX-SFHVURJKSA-N 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
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- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
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Abstract
The application discloses a method and a device for determining parameters of a sealing plug of an underground water-sealed petroleum cavern. The method comprises the following steps: after the shape parameter, the length parameter and the height parameter of the sealing plug are determined in sequence, a numerical simulation model is called to simulate the sealing plug based on the parameters, and then the reinforcement parameters of the sealing plug are determined under the condition that the obtained sealing plug meets the requirements. The method forms a set of complete and specific parameter determination method of the sealing plug, and greatly improves the design precision of the sealing plug by reasonably determining various key design parameters of the sealing plug.
Description
Technical Field
The application relates to the technical field of underground water seal cave depots, in particular to a method, a device, equipment and a storage medium for determining parameters of a sealing plug of an underground water seal petroleum cave depot.
Background
The underground water-sealed petroleum cavern is a cavern with a certain shape and volume formed by manual excavation in a rock mass below an underground water level, and is an underground engineering type for storing products such as petroleum and the like by utilizing an underground water sealing technology. The oil storage caverns of the underground water-sealed petroleum cavern are communicated with the ground through a connecting roadway, a vertical shaft and a construction roadway during construction, the oil storage caverns are isolated by using sealing plugs after construction is finished, and meanwhile, the oil inlet vertical shaft and the oil outlet vertical shaft are sealed by using the sealing plugs to form an independent sealed storage space.
However, the large-scale construction of the underground water-sealed oil cavern is started gradually in recent years, the design theory of the whole project is gradually improved, and particularly, the design method of the sealing plug of the underground water-sealed oil cavern has little introduction of literature information at home and abroad.
Therefore, in practical engineering, a complete and specific sealing plug parameter determination method is lacked, and various key design parameters of the sealing plug are reasonably determined, so that the design precision of the sealing plug is improved, and the consumption of engineering materials is saved.
Disclosure of Invention
The embodiment of the application provides a method, a device, equipment and a storage medium for determining parameters of a sealing plug of an underground water-sealed petroleum cavern, so that the design precision of the sealing plug is improved, and the consumption of engineering materials is saved. The technical scheme is as follows:
on one hand, the method for determining the parameters of the sealing plug of the underground water-sealed oil cavern comprises the following steps:
determining the shape parameters of the sealing plug;
determining a length parameter of the sealing plug based on the shape parameter;
determining a height parameter of the sealing plug based on the shape parameter and the length parameter;
based on the shape parameter, the length parameter and the height parameter, calling a numerical simulation model, and performing stress-strain analysis on a target contact surface and the interior of the sealing plug to obtain a first analysis result, wherein the numerical simulation model is used for simulating the sealing plug and obtaining mechanical parameters of the sealing plug, and the target contact surface is the contact surface of the sealing plug and surrounding rocks;
responding to the first analysis result meeting the target condition, calling the numerical simulation model, and analyzing the pulled area of the sealing plug to obtain a second analysis result;
based on the second analysis result, a reinforcement parameter of the sealing plug is determined.
Optionally, the determining the shape parameters of the sealing plug comprises:
and determining the shape parameters of the sealing plug based on the bearing strength of the target contact surface and the penetration parameters between the target contact surface and the surrounding rock.
Optionally, before determining the height parameter of the sealing plug based on the shape parameter and the length parameter, the method further comprises:
acquiring the pressure gradient of the sealing plug based on the length parameter and the pressure parameter of the sealing plug;
if the pressure gradient meets the pressure threshold, executing a step of determining a height parameter of the sealing plug based on the shape parameter and the length parameter;
if the pressure gradient does not meet the pressure threshold, the length parameter of the sealing plug is determined again.
Optionally, the determining a height parameter of the sealing plug based on the shape parameter and the length parameter comprises:
calling a calculation model based on the shape parameter and the length parameter to determine the embedding angle of the sealing plug, wherein the calculation model is used for calculating the embedding angle of the sealing plug based on an active arch theory;
based on the plug insertion angle and the length parameter, a height parameter of the sealing plug is determined.
Optionally, the first analysis result comprises: the displacement of the sealing plug under the action of water pressure and air pressure and the shearing stress of the target contact surface.
Optionally, the target condition is: the displacement of the sealing plug under the action of water pressure and air pressure meets the displacement condition, and the shear stress of the target contact surface meets the stress condition.
Optionally, after invoking a numerical simulation software based on the shape parameter, the length parameter, and the height parameter to perform a stress-strain analysis on the target contact surface and obtain a first analysis result, the method further includes:
in response to the first analysis result not meeting the target condition, adjusting the length parameter and the height parameter based on the first analysis result until the first analysis result meets the target condition.
In another aspect, a device for determining parameters of a sealing plug of an underground water-sealed oil cavern is provided, which is characterized by comprising:
the first determining module is used for determining the shape parameters of the sealing plug;
a second determination module for determining a length parameter of the sealing plug based on the shape parameter;
a third determining module, configured to determine a height parameter of the sealing plug based on the shape parameter and the length parameter;
the first analysis module is used for calling a numerical simulation model based on the shape parameter, the length parameter and the height parameter, and performing stress-strain analysis on a target contact surface and the interior of the sealing plug to obtain a first analysis result, wherein the numerical simulation model is used for simulating the sealing plug and obtaining mechanical parameters of the sealing plug, and the target contact surface is the contact surface of the sealing plug and surrounding rocks;
the second analysis module is used for responding to the first analysis result meeting the target condition, calling the numerical simulation model, and analyzing the tension area of the sealing plug to obtain a second analysis result;
and the fourth determination module is used for determining the reinforcement parameters of the sealing plug based on the second analysis result.
Optionally, the first determining module is configured to:
and determining the shape parameters of the sealing plug based on the bearing strength of the target contact surface and the penetration parameters between the target contact surface and the surrounding rock.
Optionally, the apparatus further comprises:
the acquisition module is used for acquiring the pressure gradient of the sealing plug based on the length parameter and the pressure parameter of the sealing plug;
an execution module, configured to execute a step of determining a height parameter of the sealing plug based on the shape parameter and the length parameter if the pressure gradient satisfies a pressure threshold;
a fifth determination module for re-determining the length parameter of the sealing plug if the pressure gradient does not meet the pressure threshold.
Optionally, the third determining module is configured to:
calling a calculation model based on the shape parameter and the length parameter to determine the embedding angle of the sealing plug, wherein the calculation model is used for calculating the embedding angle of the sealing plug based on an active arch theory;
based on the plug insertion angle and the length parameter, a height parameter of the sealing plug is determined.
Optionally, the first analysis result comprises: the displacement of the sealing plug under the action of water pressure and air pressure and the shearing stress of the target contact surface.
Optionally, the target condition is: the displacement of the sealing plug under the action of water pressure and air pressure meets the displacement condition, and the shear stress of the target contact surface meets the stress condition.
Optionally, the apparatus further comprises:
and the adjusting module is used for responding to the first analysis result not meeting the target condition, and adjusting the length parameter and the height parameter based on the first analysis result until the first analysis result meets the target condition.
In another aspect, a computer device is provided, which includes a processor and a memory, where the memory is used to store at least one program code, and the at least one program code is loaded and executed by the processor to implement the operations executed in the method for determining parameters of a sealing plug of a subsurface water seal oil cavern in the embodiment of the present application.
In another aspect, a computer-readable storage medium is provided, in which at least one program code is stored, and the at least one program code is loaded and executed by the processor to implement the operations performed in the method for determining parameters of a sealing plug of a subsurface water-sealed oil cavern in the embodiment of the present application.
In the embodiment of the application, a parameter determination method for a sealing plug of an underground water-sealed oil cavern is provided, after a shape parameter, a length parameter and a height parameter of the sealing plug are sequentially determined, a numerical simulation model is called to simulate the sealing plug based on the parameters, and then reinforcement parameters of the sealing plug are determined under the condition that the obtained sealing plug meets requirements. The method forms a complete and specific parameter determination method of the sealing plug, and greatly improves the design precision of the sealing plug and saves the consumption of engineering materials by reasonably determining various key design parameters of the sealing plug.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic position diagram of a sealing plug of an underground water-sealed oil cavern provided by an embodiment of the application;
FIG. 2 is a parameter determination method for a sealing plug of an underground water-sealed oil cavern provided by an embodiment of the application;
FIG. 3 is a flow chart of another parameter determination method for a sealing plug of an underground water-sealed petroleum cavern provided by an embodiment of the application;
FIG. 4 is a schematic illustration of four sealing plug shapes provided in accordance with an embodiment of the present application;
fig. 5 is a schematic view of a double-tapered sealing plug provided in accordance with an embodiment of the present application;
fig. 6 is a schematic diagram of a method of determining a length parameter of a sealing plug according to an embodiment of the present application;
fig. 7 is a schematic diagram of calculating an insertion angle of a sealing plug based on an active arch theory according to an embodiment of the present application;
FIG. 8 is a schematic illustration of a center angle of an arch dam provided in accordance with an embodiment of the present application;
fig. 9 is a block diagram of a parameter determination apparatus for a sealing plug of an underground water-sealed oil cavern provided in an embodiment of the present application;
fig. 10 is a schematic structural diagram of a computer device provided according to an embodiment of the present application.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the application, as detailed in the appended claims.
In order to facilitate understanding of the technical scheme of the embodiment of the invention, the position of a sealing plug in the underground water-sealed petroleum cavern is briefly explained. Referring to fig. 1, fig. 1 is a schematic position diagram of a sealing plug of an underground water-sealed petroleum cavern provided by an embodiment of the present application, caverns of the underground water-sealed petroleum cavern are communicated with the ground through a connecting roadway, a vertical shaft and a construction roadway during construction, after the construction is completed, the caverns are isolated by using the sealing plug, and meanwhile, an oil inlet vertical shaft and an oil outlet vertical shaft are sealed by using the sealing plug to form an independent sealed storage space. The sealing plug shown in the left figure of fig. 1 is positioned in a construction roadway and a connecting roadway, and the sealing plug shown in the right figure of fig. 1 is positioned in a shaft.
Fig. 2 is a flowchart of a method for determining parameters of a sealing plug of an underground water-sealed oil cavern provided in an embodiment of the present application, and as shown in fig. 2, the embodiment of the present application is described by taking an example of application to a computer device. The method comprises the following steps:
201. the computer device determines the shape parameters of the sealing plug.
202. The computer device determines a length parameter of the sealing plug based on the shape parameter.
203. The computer device determines a height parameter of the sealing plug based on the shape parameter and the length parameter.
204. The computer equipment calls a numerical simulation model based on the shape parameters, the length parameters and the height parameters, and performs stress-strain analysis on a target contact surface and the interior of the sealing plug to obtain a first analysis result, wherein the numerical simulation model is used for simulating the sealing plug and obtaining mechanical parameters of the sealing plug, and the target contact surface is the contact surface of the sealing plug and surrounding rocks.
205. And the computer equipment responds to the first analysis result and meets the target condition, calls the numerical simulation model, and analyzes the pulled area of the sealing plug to obtain a second analysis result.
206. The computer device determines the reinforcement parameters of the sealing plug based on the second analysis result.
In the embodiment of the application, a parameter determination method for a sealing plug of an underground water-sealed oil cavern is provided, after a shape parameter, a length parameter and a height parameter of the sealing plug are sequentially determined, a numerical simulation model is called to simulate the sealing plug based on the parameters, and then reinforcement parameters of the sealing plug are determined under the condition that the obtained sealing plug meets requirements. The method forms a complete and specific parameter determination method of the sealing plug, and greatly improves the design precision of the sealing plug and saves the consumption of engineering materials by reasonably determining various key design parameters of the sealing plug.
Fig. 3 is a flowchart of another parameter determination method for a sealing plug of an underground water-sealed oil cavern provided in an embodiment of the present application, and as shown in fig. 3, the embodiment of the present application is described by taking an application to a computer device as an example. The method comprises the following steps:
301. the computer device determines the shape parameters of the sealing plug.
In the embodiment of the application, the computer equipment determines the shape parameters of the sealing plug based on the bearing strength of the target contact surface and the penetration parameters between the target contact surface and the surrounding rock. Wherein, the target contact surface is the contact surface of the sealing plug and the surrounding rock.
In practical engineering, when determining the shape parameters of the sealing plug, the following two factors need to be considered: the first factor is the bearing strength of the target contact surface, the larger the area of the target contact surface is, the larger the bearing area can be provided, and correspondingly, the larger the bearing strength of the target contact surface is, and meanwhile, the longer the length of the target contact surface is, the smaller the shear stress and the bearing stress generated on the target contact surface are, and the better the bearing strength of the sealing plug is; the second factor is the penetration parameter between the target contact surface and the surrounding rock, which depends on the length of the target contact surface, the longer the penetration path between the sealing plug and the surrounding rock, the less risk of leakage at the location where the sealing plug contacts the surrounding rock, and correspondingly, the better the sealing of the sealing plug.
In addition, according to the existing engineering experience, the influence of the permeation parameters on the sealing plug is larger than the influence of the bearing strength on the sealing plug, so that the requirement on the length of a target contact surface is higher when the shape parameters of the sealing plug are determined.
The shape of the existing sealing plug can be referred to fig. 4, fig. 4 is a schematic diagram of four shapes of the sealing plug provided in the embodiment of the present application, in which (a) is a thin reinforced concrete wall-shaped sealing plug, (b) is a non-reinforced arched sealing plug, (c) is a conical sealing plug, and (d) is a cylindrical sealing plug.
In practical engineering, engineers can analyze the existing four sealing plugs according to the shape of the existing sealing plug and the surrounding rock characteristics of the position of the sealing plug, and by combining the two factors, finally determine the shape parameters of the sealing plug. The specific analysis process is divided into the following four parts:
firstly, the thin reinforced concrete wall-shaped sealing plug has a short length and a short permeation path, and accordingly, the sealing performance of the sealing plug is not good, so that the thin reinforced concrete wall-shaped sealing plug is not suitable for being used as a sealing plug of an underground water-sealed oil cave depot.
Secondly, under the condition that both sides of the non-reinforced arched sealing plug are subjected to pressure, the bearing strength is poor, and the sealing plug is not suitable for being used as the sealing plug of the underground water-sealed oil cavern considering that both sides of the sealing plug are subjected to pressure, namely water pressure and air pressure, in the operation period of the underground water-sealed oil cavern.
Thirdly, the target contact surface of the conical sealing plug is a conical surface, compared with a cylindrical sealing plug, the length of the conical surface is obviously longer, a larger pressure-bearing area is provided, and correspondingly, the pressure-bearing strength of the target contact surface of the conical sealing plug is higher; meanwhile, considering the influence of permeation parameters on the sealing plug, the length of the target contact surface of the conical sealing plug is longer, and the sealing performance is better, so that the conical sealing plug is selected as the sealing plug of the underground water seal cave depot.
And fourthly, comprehensively considering the factors of pressure-bearing strength, permeability parameters, structural stability of the sealing plug, pressure born by the sealing plug on two sides of the operation period and the like, and adopting the sealing plug in a double-cone form instead of the sealing plug in a single-cone form in the underground water-sealed oil cavern. Referring specifically to fig. 5, fig. 5 is a schematic view of a double-tapered sealing plug provided in an embodiment of the present application. The double-cone sealing plug is long in length, large in cross-sectional area and capable of bearing large pressure, meanwhile, the double-cone sealing plug is adopted to improve the structural stability of the sealing plug, and the sealing plug can be embedded into surrounding rocks better.
Alternatively, the computer device displays a shape parameter determination interface on which a user can input the shape parameters of the sealing plug, and the computer device then determines the shape parameters of the sealing plug in response to the user's input operation. For example, after determining the shape parameter of the sealing plug as a biconic sealing plug, the engineer enters the shape parameter on a shape parameter determination interface displayed by a computer device.
Optionally, the computer device obtains shape parameters of the existing four sealing plugs and surrounding rock characteristic parameters of positions where the sealing plugs are to be determined, and then determines the shape parameters of the sealing plugs based on information such as the bearing strength and the penetration parameters of the target contact surfaces of the sealing plugs.
It should be noted that, the embodiment of the present application is not limited to a specific implementation manner for determining the shape parameter of the sealing plug by the computer device.
302. The computer device determines a length parameter of the sealing plug based on the shape parameter.
In the present embodiment, based on step 301, the computer device determines the shape parameter of the sealing plug to be a biconic sealing plug. It should be noted that in the following steps, the parameters determined in the embodiments of the present application are parameters of the biconical sealing plug.
In this step, the length parameter of the sealing plug refers to the respective length parameter of each single tapered sealing plug of the double tapered sealing plug. Due to the unpredictability and complexity of underground works, the calculation formula of the length parameter of the sealing plug is obtained by using the calculation formula of the length parameter of the cylindrical sealing plug, and the principle of determining the length parameter of the sealing plug is explained below.
Referring to fig. 5, in the figure, L1 and L2 are length parameters of the sealing plug, β 1 and β 2 are included angles between the sealing plug and axes of the vertical shaft, the connecting roadway and the construction roadway, and P1 and P2 are water pressure and air pressure at two ends of the sealing plug after the cavern is filled with water.
Referring to fig. 6, fig. 6 is a schematic diagram of a method for determining a length parameter of a cylindrical sealing plug according to an embodiment of the present application. Fig. 6 (a) is a schematic diagram of the stress of the cylindrical sealing plug, and (b) is a schematic diagram of the stress of the cylindrical sealing plug per unit length. In actual engineering, the surface of the surrounding rock is uneven, so that the contact surface of the sealing plug and the surrounding rock, namely the target contact surface, only half of the contact surface is actually directly subjected to pressure, the other half of the contact surface is subjected to tensile force, and the effect of the tensile force can be ignored. From the graph (b) in fig. 6, the following formulas (1) to (4) can be derived:
BC cosα＝0.5l′ (1)
P′＝F′bsinα (2)
F′b＝pbeBC (3)
in the above formulas (1) to (4), α is an angle between the cell length BC actually subjected to the pressure and the horizontal direction, l 'is the cell length, P' is the air pressure received by the cell length BC, and Fb' reaction force, p, of cell length BCbeThe concrete has the advantages of bearing strength of the concrete,
f is the standard value of the concrete compressive strength.
By the above equations (1) to (4), the total resultant force acting on the cross section of the bore seal can be obtained, by the following equation (5):
in the formula (5), P is the total force, P represents the water pressure or air pressure borne by the sealing plug, b is the width of the sealing plug, and h is the height of the sealing plug.
By modifying the formula (5), the following formula (6) can be obtained:
further, since the surface of the sealing plug is uneven, α ranges from 0 ° to 90 °, and α may be 45 ° according to the existing engineering experience, which is a reasonable value for the sealing plug, the following formula (7) can be obtained:
since the cross section of the sealing plug is a circular section, on the basis of the formula (7), the following formula (9), namely the length calculation formula of the cylindrical sealing plug, can be obtained by combining the following formula (8):
through the above equations (1) to (9), that is, derivation of the calculation equation of the length parameter of the cylindrical sealing plug, the calculation equation of the length parameter of the sealing plug can be obtained, and when the position of the sealing plug is located in the construction roadway and the connecting roadway, the calculation equation of the length parameter of the sealing plug is the following equations (10) and (11):
Pbe×tanα×L1×C＝2×P1×S (10)
Pbe×tanα×L2×C＝2×P2×S (11)
in the above equations (10) and (11), L1、L2The length parameter of each single cone-shaped sealing plug of the sealing plug, S is the cross-sectional area of the sealing plug, C is the perimeter of the sealing plug, P1Is water pressure, P2Is air pressure.
The calculation formula of the length parameter of the sealing plug when the position of the sealing plug is located in the shaft is the following formula (12) and formula (13):
Pbe×tanα×l1＝2×P1×r (12)
Pbe×tanα×l2＝2×P2×r (13)
in the above formula (12) and formula (13), l1、l2Length parameter, P, of each single-cone sealing plug for the sealing plug1Is water pressure, P2Is the gas pressure and r is the radius of the sealing plug.
Optionally, after determining that the shape parameter of the sealing plug is a biconical sealing plug, the computer device obtains a position parameter of the position where the sealing plug is located, where the position parameter is used to represent information such as the roadway height, width, and orientation of the position where the sealing plug is located, and based on the position parameter, the computer device can obtain parameters such as the cross-sectional area S, the perimeter C, and the radius r of the required sealing plug, and then based on the above formula (10) and formula (11), or the above formula (12) and formula (13), calculate the length parameter of the sealing plug.
Alternatively, the computer device displays a length parameter determination interface on which a user can input a length parameter of the sealing plug, and then the computer device determines the length parameter of the sealing plug in response to the user's input operation. For example, after determining the shape parameter of the sealing plug as a biconical sealing plug, the engineer calculates a length parameter of the sealing plug based on the above formula (10) and formula (11), or the above formula (12) and formula (13), and then inputs the length parameter on a length parameter determination interface displayed by a computer device.
It should be noted that, the embodiment of the present application is not limited to the specific implementation manner of determining the length parameter of the sealing plug by the computer device.
303. A computer device obtains a pressure gradient of the sealing plug based on the length parameter and the pressure parameter of the sealing plug.
In the embodiments of the present application, the pressure parameters of the sealing plug refer to the water pressure and the air pressure to which the sealing plug is subjected. After determining the length parameter of the sealing plug, the computer device calculates the pressure gradient of the sealing plug by combining the pressure parameter of the sealing plug, wherein the pressure gradient is (P1-P2)/(L1+ L2), L1 and L2 are the length parameters of the sealing plug, and P1 and P2 are the water pressure and the air pressure at two ends of the sealing plug after the cavern is filled with water.
304. The computer device determines whether the pressure gradient meets a pressure threshold, and if not, performs step 305, described below, and if so, performs steps 306-308, described below.
In the embodiment of the present application, a pressure threshold is used to ensure the sealing performance of the sealing plug, where the pressure threshold is preset by the computer device, and when the pressure gradient satisfies the pressure threshold, it indicates that the sealing plug obtained according to the current length parameter satisfies the sealing performance requirement, and when the pressure gradient does not satisfy the pressure threshold, it indicates that the sealing plug obtained according to the current length parameter cannot satisfy the sealing performance requirement. For example, the pressure threshold may be set to 0.25MPa/m, when the pressure gradient is less than 0.25MPa/m, it is indicated that the sealing plug obtained according to the current length parameters meets the sealing performance requirement. The setting of the pressure threshold value is not particularly limited in the embodiments of the present application.
305. The computer device re-determines the length parameter of the sealing plug.
In the embodiment of the present application, after the step 304, if the computer device determines that the sealing plug obtained according to the current length parameter cannot meet the sealing performance requirement, the computer device adjusts the current length parameter to obtain an adjusted length parameter, and then re-executes the steps 303 and 304 until the pressure gradient of the sealing plug meets the pressure threshold. Alternatively, the adjustment of the current length parameter refers to increasing the length of the sealing plug, for example, the length parameters of the current sealing plug are L1 and L2, and are increased by 0.1m respectively on the basis of L1 and L2, so as to obtain the adjusted length parameter of the sealing plug. The embodiment of the present application is not particularly limited to the way of re-determining the length parameter of the sealing plug.
306. A computer device determines a height parameter of the sealing plug based on the shape parameter and the length parameter.
In the embodiment of the present application, the height parameter refers to a height parameter of the sealing plug higher than the roadways on both sides, and specifically, refer to fig. 5, where h is the height parameter in this step.
In this step, determining the height parameter of the sealing plug specifically includes the following two steps:
the method comprises the following steps: and calling a calculation model by the computer equipment based on the shape parameter and the length parameter to determine the embedding angle of the sealing plug, wherein the calculation model is used for calculating the embedding angle of the sealing plug based on the active arch theory.
Referring to fig. 7, fig. 7 is a schematic diagram of calculating an embedding angle of a sealing plug based on an active arch theory according to an embodiment of the present application, where P1 and P2 have the same meaning as in the above step, and β is the embedding angle. The figure shows that a single conical sealing plug is used as a small elastic circular arch dam, then a computer device calls a calculation model to calculate the internal force, wherein the basic assumption of the calculation model is that the material is elastic, homogeneous and isotropic, and the Hooke's theorem is suitable, and meanwhile, the flat section assumption is suitable, namely, a flat section which is vertical to the center line of the arch before the forced deformation is still a plane after the forced deformation. Through calculation, it can be determined that the insertion angle β of the sealing plug is in a range from 25 ° to 37 °, the insertion angle β is smaller than 37 ° to ensure that the sealing plug does not slide, and the insertion angle β is larger than 25 ° to meet the requirement of the optimal central angle of the elastic circular arch, specifically, referring to fig. 8, where fig. 8 is a schematic diagram based on the central angle of the arch dam according to an embodiment of the present application, and when determining the insertion angle of the sealing plug, it is required to ensure that the central angle θ is 2 β <130 °. Therefore, the computer device can select the embedding angle of the sealing plug between 25 ° and 37 °, and the value of the embedding angle is not particularly limited in the embodiments of the present application.
Step two: a computer device determines a height parameter of the sealing plug based on the insertion angle of the sealing plug and the length parameter.
After the computer equipment determines the embedding angle and the length parameters of the sealing plug, the height parameters of the sealing plug can be obtained through calculation. With continued reference to fig. 5, it can be seen that L1 × tan β 1 ═ h, i.e. the height parameter of the sealing plug is obtained, where L1 is the length parameter of the single tapered sealing plug and β 1 is the insertion angle of the single tapered sealing plug.
307. And calling a numerical simulation model by the computer equipment based on the shape parameter, the length parameter and the height parameter, and carrying out stress-strain analysis on the target contact surface and the interior of the sealing plug to obtain a first analysis result.
In the embodiment of the present application, the numerical simulation model is used for simulating the sealing plug and obtaining the mechanical parameters of the sealing plug. The first analysis result includes: the displacement of the sealing plug under the action of water pressure and air pressure and the shearing stress of a target contact surface.
The computer equipment establishes a numerical simulation model of the sealing plug based on numerical simulation software by combining the shape parameter, the length parameter and the height parameter of the sealing plug, and then performs stress-strain analysis on the target contact surface and the interior of the sealing plug based on the numerical simulation model, so that the displacement of the sealing plug under the action of water pressure and air pressure, the shear stress of the target contact surface and other mechanical parameters of the sealing plug can be obtained. The embodiment of the present application does not specifically limit the type of the numerical simulation software.
308. The computer device determines whether the first analysis result meets a target condition, and if not, performs step 309 described below, and if so, performs steps 310 to 311 described below.
In the embodiment of the application, the target condition means that the displacement of the sealing plug under the action of water pressure and air pressure meets the displacement condition, and the shear stress of the target contact surface meets the stress condition. The displacement condition means that the displacement of the sealing plug under the action of water pressure and air pressure is smaller than a displacement threshold value, for example, the displacement threshold value is 1cm, and when the displacement of the sealing plug under the action of water pressure and air pressure is smaller than 1cm, the sealing plug meets the displacement condition.
The following description is made on the condition that the shear stress of the target contact surface satisfies the stress condition:
based on the mechanical parameters obtained in step 307, the computer device can obtain the shear strength safety factor F of the target contact surface through the following formula (14)sThen according to the shear strength safety factor FsTwo judgment criteria can be obtained as shown in the following equation (15) and equation (16), respectively. Equations (14) to (16) are:
in the above formulas (14) to (16), CkIs the cohesive force of the target contact surface, A is the area of the target contact surface, N is the normal force of the target contact surface,
is the internal friction angle of the target contact surface, FcThe cohesive force reduction factor of the target contact surface,
is a target contact surfaceH is the overall height of the sealing plug, CdTo reduce the cohesive force of the target contact surface after folding,
for reducing the internal friction angle, σ, of the target contact surfaceNAnd tau is the actual normal stress of the target contact surface obtained based on the numerical simulation model, and tau is the actual shear stress of the target contact surface obtained based on the numerical simulation model. It should be noted that the mechanical parameters can be directly obtained by the computer device based on the numerical simulation model.
The above formula (15) is based on the shear strength safety factor FsThe obtained normal stress safety criterion of the target contact surface is that the formula (16) is a safety factor F according to the shearing strengthsAnd obtaining the safety criterion of the shear strength of the target contact surface. When sigma isNIf the above equation (15) is satisfied and τ satisfies the above equation (16), the shear stress of the target contact surface is determined to satisfy the stress condition.
309. The computer device adjusts the length parameter and the height parameter based on the first analysis result until the first analysis result meets the target condition.
In this embodiment, after the step 308, if the computer device determines that the current first analysis result does not satisfy the target condition, the computer device adjusts the current length parameter and the current height parameter to obtain the adjusted parameters of the sealing plug, and then re-executes the steps 303 to 308 until the first analysis result of the sealing plug satisfies the target condition.
310. And calling the numerical simulation model by computer equipment, and analyzing the pulled area of the sealing plug to obtain a second analysis result.
In this embodiment of the application, after the step 308, the computer device determines that the current first analysis result meets the target condition, and then, based on the numerical simulation software, the computer device invokes a numerical simulation model of the sealing plug at the current parameter to analyze the pulled region of the sealing plug, so as to obtain a second analysis result, where the second analysis result includes mechanical parameters, regional characteristic information, and the like of the pulled region of the sealing plug.
311. And the computer equipment determines the reinforcement parameters of the sealing plug based on the second analysis result.
In the embodiment of the application, the reinforcement parameters refer to reinforcement parameters required for reinforcing the reinforcement of the pulled area of the sealing plug, and include reinforcement depth, reinforcement spacing, reinforcement diameter and other parameters.
Optionally, the sealing plug is simplified into a plate-shell structure according to the principle of material mechanics, the computer device obtains the bending moment M and the axial force N of the sealing plug based on the following formula (17) and formula (18), and then the reinforcement parameters of the tension area of the sealing plug are determined according to the regulations of the concrete structure design specifications (GB 50010-2010). Equation (17) and equation (18) are as follows:
in the formula, σ1Is the first principal stress, σ2For the second principal stress, H is the entire height of the sealing plug, and it should be noted that these parameters are all directly obtainable by the computer device based on the numerical simulation model.
In the present embodiment, the shape parameters of the sealing plug are specifically described as an example of a biconical sealing plug. Alternatively, the above steps are also applicable to sealing plugs with other shapes, such as cylindrical sealing plugs, single-cone sealing plugs, etc., only the difference is that the formula used in the steps is different, the flow of parameter determination of the whole sealing plug is similar, and the shape of the sealing plug is not specifically limited in the embodiments of the present application.
In the embodiment of the application, a parameter determination method for a sealing plug of an underground water-sealed oil cavern is provided, after a shape parameter, a length parameter and a height parameter of the sealing plug are sequentially determined, a numerical simulation model is called to simulate the sealing plug based on the parameters, and then reinforcement parameters of the sealing plug are determined under the condition that the obtained sealing plug meets requirements. The method forms a complete and specific parameter determination method of the sealing plug, and greatly improves the design precision of the sealing plug and saves the consumption of engineering materials by reasonably determining various key design parameters of the sealing plug.
Fig. 9 is a block diagram of a parameter determination apparatus for a sealing plug of an underground water-sealed oil cavern, which is provided according to an embodiment of the present application, and is used for executing the steps of the above method for determining the parameters of the sealing plug of the underground water-sealed oil cavern, referring to fig. 9, the apparatus includes: a first determination module 901, a second determination module 902, a third determination module 903, a first analysis module 904, a second analysis module 905, and a fourth determination module 906.
A first determining module 901, configured to determine a shape parameter of the sealing plug;
a second determining module 902, configured to determine a length parameter of the sealing plug based on the shape parameter;
a third determining module 903 for determining a height parameter of the sealing plug based on the shape parameter and the length parameter;
a first analysis module 904, configured to invoke a numerical simulation model based on the shape parameter, the length parameter, and the height parameter, and perform stress-strain analysis on a target contact surface and the interior of the sealing plug to obtain a first analysis result, where the numerical simulation model is used to simulate the sealing plug and obtain mechanical parameters of the sealing plug, and the target contact surface is a contact surface between the sealing plug and surrounding rock;
the second analysis module 905 is used for responding to the first analysis result meeting the target condition, calling the numerical simulation model, and analyzing the tension area of the sealing plug to obtain a second analysis result;
a fourth determining module 906 for determining a reinforcement parameter of the sealing plug based on the second analysis result.
Optionally, the first determining module 901 is configured to:
and determining the shape parameters of the sealing plug based on the bearing strength of the target contact surface and the penetration parameters between the target contact surface and the surrounding rock.
Optionally, the apparatus further comprises:
the acquisition module is used for acquiring the pressure gradient of the sealing plug based on the length parameter and the pressure parameter of the sealing plug;
an execution module, configured to execute a step of determining a height parameter of the sealing plug based on the shape parameter and the length parameter if the pressure gradient satisfies a pressure threshold;
a fifth determination module for re-determining the length parameter of the sealing plug if the pressure gradient does not meet the pressure threshold.
Optionally, the third determining module 903 is configured to:
calling a calculation model based on the shape parameter and the length parameter to determine the embedding angle of the sealing plug, wherein the calculation model is used for calculating the embedding angle of the sealing plug based on an active arch theory;
based on the plug insertion angle and the length parameters, a height parameter of the sealing plug is determined.
Optionally, the first analysis result comprises: the displacement of the sealing plug under the action of water pressure and air pressure and the shearing stress of the target contact surface.
Optionally, the target condition is: the displacement of the sealing plug under the action of water pressure and air pressure meets the displacement condition, and the shear stress of the target contact surface meets the stress condition.
Optionally, the apparatus further comprises:
and the adjusting module is used for responding to the first analysis result not meeting the target condition, and adjusting the length parameter and the height parameter based on the first analysis result until the first analysis result meets the target condition.
In the embodiment of the application, the parameter determination device for the sealing plug of the underground water-sealed oil cavern is provided, after the shape parameter, the length parameter and the height parameter of the sealing plug are sequentially determined, based on the parameters, a numerical simulation model is called to simulate the sealing plug, and then under the condition that the obtained sealing plug meets the requirement, the reinforcement parameters of the sealing plug are determined. The method forms a complete and specific parameter determination method of the sealing plug, and greatly improves the design precision of the sealing plug and saves the consumption of engineering materials by reasonably determining various key design parameters of the sealing plug.
It should be noted that: the parameter determining device for the sealing plug of the underground water-sealed petroleum cavern provided by the embodiment is only exemplified by the division of the functional modules when determining the parameter of the sealing plug of the underground water-sealed petroleum cavern, and in practical application, the function distribution can be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. In addition, the parameter determination device for the sealing plug of the underground water-sealed petroleum cavern and the parameter determination method embodiment of the sealing plug of the underground water-sealed petroleum cavern provided by the embodiment belong to the same concept, and the specific implementation process is described in the method embodiment and is not repeated herein.
Fig. 10 is a schematic structural diagram of a computer apparatus, where the computer apparatus 1000 may generate relatively large differences due to different configurations or performances, and can include one or more processors (CPUs) 1001 and one or more memories 1002, where the memory 1002 stores at least one program code, and the at least one program code is loaded and executed by the processors 1001 to implement the parameter determination method for the underground water-sealed oil cavern sealing plug provided in the above-mentioned method embodiments. Certainly, the computer device can also have components such as a wired or wireless network interface, a keyboard, an input/output interface, and the like so as to perform input/output, and the computer device can also include other components for realizing the functions of the device, which is not described herein again.
The embodiment of the present application further provides a computer-readable storage medium, which is applied to a computer device, and the computer-readable storage medium stores at least one program code, and the at least one program code is loaded and executed by a processor to implement the operations executed by the computer device in the parameter determination method for a sealing plug of a water-sealed underground petroleum cavern.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, and the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The above description is only exemplary of the present application and should not be taken as limiting, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. A parameter determination method for a sealing plug of an underground water-sealed oil cavern is characterized by comprising the following steps:
determining the shape parameters of the sealing plug;
determining a length parameter of the sealing plug based on the shape parameter;
determining a height parameter of the sealing plug based on the shape parameter and the length parameter;
based on the shape parameter, the length parameter and the height parameter, calling a numerical simulation model, and performing stress-strain analysis on a target contact surface and the interior of the sealing plug to obtain a first analysis result, wherein the numerical simulation model is used for simulating the sealing plug and obtaining mechanical parameters of the sealing plug, and the target contact surface is the contact surface of the sealing plug and surrounding rocks;
responding to the first analysis result meeting the target condition, calling the numerical simulation model, and analyzing the pulled area of the sealing plug to obtain a second analysis result;
and determining the reinforcement parameters of the sealing plug based on the second analysis result.
2. The method of claim 1, wherein said determining a shape parameter of the sealing plug comprises:
and determining the shape parameters of the sealing plug based on the bearing strength of the target contact surface and the penetration parameters between the target contact surface and the surrounding rock.
3. The method of claim 1, wherein prior to determining the height parameter of the sealing plug based on the shape parameter and the length parameter, the method further comprises:
acquiring the pressure gradient of the sealing plug based on the length parameter and the pressure parameter of the sealing plug;
if the pressure gradient meets a pressure threshold, executing a step of determining a height parameter of the sealing plug based on the shape parameter and the length parameter;
if the pressure gradient does not meet the pressure threshold, the length parameter of the sealing plug is determined again.
4. The method of claim 1, wherein determining a height parameter of the sealing plug based on the shape parameter and the length parameter comprises:
calling a calculation model based on the shape parameter and the length parameter to determine the embedding angle of the sealing plug, wherein the calculation model is used for calculating the embedding angle of the sealing plug based on an active arch theory;
determining a height parameter of the sealing plug based on the insertion angle of the sealing plug and the length parameter.
5. The method of claim 1, wherein the first analysis result comprises: the displacement of the sealing plug under the action of water pressure and air pressure and the shearing stress of the target contact surface.
6. The method of claim 5, wherein the target condition is: the displacement of the sealing plug under the action of water pressure and air pressure meets the displacement condition, and the shear stress of the target contact surface meets the stress condition.
7. The method according to any one of claims 1 to 6, wherein after invoking numerical simulation software to perform a stress-strain analysis on the target contact surface based on the shape parameter, the length parameter and the height parameter to obtain a first analysis result, the method further comprises:
in response to the first analysis result not meeting the target condition, adjusting the length parameter and the height parameter based on the first analysis result until the first analysis result meets the target condition.
8. A parameter determination apparatus for a sealing plug of an underground water-sealed oil cavern, the apparatus comprising:
the first determining module is used for determining the shape parameters of the sealing plug;
a second determination module for determining a length parameter of the sealing plug based on the shape parameter;
a third determining module, configured to determine a height parameter of the sealing plug based on the shape parameter and the length parameter;
the first analysis module is used for calling a numerical simulation model based on the shape parameter, the length parameter and the height parameter, and performing stress-strain analysis on a target contact surface and the interior of the sealing plug to obtain a first analysis result, wherein the numerical simulation model is used for simulating the sealing plug and obtaining mechanical parameters of the sealing plug, and the target contact surface is the contact surface of the sealing plug and surrounding rocks;
the second analysis module is used for responding to the first analysis result to meet the target condition, calling the numerical simulation model, and analyzing the tension area of the sealing plug to obtain a second analysis result;
and the fourth determining module is used for determining the reinforcement parameters of the sealing plug based on the second analysis result.
9. A computer device, characterized in that the computer device comprises a processor and a memory for storing at least one piece of program code, which is loaded by the processor and executes the method according to any of claims 1 to 7.
10. A storage medium for storing at least one program code for performing the method of any one of claims 1 to 7.
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005061002A (en) * | 2003-08-11 | 2005-03-10 | Nisshin Steel Co Ltd | Spill-proof method for steel pipe expansion type lock bolt |
| CN202031601U (en) * | 2011-04-14 | 2011-11-09 | 中国石油化工股份有限公司 | Shaft sealing plug structure of underground water-sealed oil storage cave |
| US20120143584A1 (en) * | 2010-12-03 | 2012-06-07 | Hon Hai Precision Industry Co., Ltd. | Computing device and method for enforcing passivity of scattering parameter equivalent circuit |
| CN103175730A (en) * | 2013-03-28 | 2013-06-26 | 长沙理工大学 | Method for determining jointed rock mechanical parameters |
| CN103590845A (en) * | 2013-11-28 | 2014-02-19 | 河南理工大学 | Impact-resistant interval grouting anchor cable and use method thereof |
| WO2015049060A1 (en) * | 2013-10-04 | 2015-04-09 | Biochemtex S.P.A. | Transferring equipment and method |
| CN106198208A (en) * | 2016-06-21 | 2016-12-07 | 中电建路桥集团有限公司 | A kind of interbedding of soft and hard rocks surrounding rock tunnel method for analog construction considering layer reason effect |
| CN206071645U (en) * | 2016-10-12 | 2017-04-05 | 中国石油天然气集团公司 | A kind of underground water sealed oil storage in rock caverns connects the plugging structure in tunnel |
| CN107989639A (en) * | 2017-12-08 | 2018-05-04 | 福州大学 | Underground water seal cave depot concrete dense blocking and its parameter determination method and construction method |
| US20190383394A1 (en) * | 2017-02-17 | 2019-12-19 | Trelleborg Sealing Solutions Germany Gmbh | Seal arrangement |
| CN110688696A (en) * | 2019-09-16 | 2020-01-14 | 中铁第五勘察设计院集团有限公司 | Parameter determination method and device for tunnel supporting structure |
-
2020
- 2020-11-16 CN CN202011278325.8A patent/CN114509344B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005061002A (en) * | 2003-08-11 | 2005-03-10 | Nisshin Steel Co Ltd | Spill-proof method for steel pipe expansion type lock bolt |
| US20120143584A1 (en) * | 2010-12-03 | 2012-06-07 | Hon Hai Precision Industry Co., Ltd. | Computing device and method for enforcing passivity of scattering parameter equivalent circuit |
| CN202031601U (en) * | 2011-04-14 | 2011-11-09 | 中国石油化工股份有限公司 | Shaft sealing plug structure of underground water-sealed oil storage cave |
| CN103175730A (en) * | 2013-03-28 | 2013-06-26 | 长沙理工大学 | Method for determining jointed rock mechanical parameters |
| WO2015049060A1 (en) * | 2013-10-04 | 2015-04-09 | Biochemtex S.P.A. | Transferring equipment and method |
| CN103590845A (en) * | 2013-11-28 | 2014-02-19 | 河南理工大学 | Impact-resistant interval grouting anchor cable and use method thereof |
| CN106198208A (en) * | 2016-06-21 | 2016-12-07 | 中电建路桥集团有限公司 | A kind of interbedding of soft and hard rocks surrounding rock tunnel method for analog construction considering layer reason effect |
| CN206071645U (en) * | 2016-10-12 | 2017-04-05 | 中国石油天然气集团公司 | A kind of underground water sealed oil storage in rock caverns connects the plugging structure in tunnel |
| US20190383394A1 (en) * | 2017-02-17 | 2019-12-19 | Trelleborg Sealing Solutions Germany Gmbh | Seal arrangement |
| CN107989639A (en) * | 2017-12-08 | 2018-05-04 | 福州大学 | Underground water seal cave depot concrete dense blocking and its parameter determination method and construction method |
| CN110688696A (en) * | 2019-09-16 | 2020-01-14 | 中铁第五勘察设计院集团有限公司 | Parameter determination method and device for tunnel supporting structure |
Non-Patent Citations (3)
| Title |
|---|
| 孙海江;周永力;赵晓;: "浅谈某地下水封石油洞库密封塞施工技术", 四川水力发电, no. 04, pages 29 - 32 * |
| 王敬奎: "地下水封洞库施工巷道密封塞设计探讨", 《研究成果》, no. 21, pages 9 - 12 * |
| 马乔;雷福林;张亚文;阳绍军;徐祥;肖云汉;: "不同充气条件下密相输运床返料***气固流动数值模拟", 化工学报, no. 12, pages 4959 - 4968 * |
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