CN115434658B - Method, device, equipment and storage medium for determining plugging material dosage - Google Patents
Method, device, equipment and storage medium for determining plugging material dosage Download PDFInfo
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- E—FIXED CONSTRUCTIONS
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- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
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Abstract
The application discloses a method, a device, equipment and a storage medium for determining the dosage of plugging materials, and belongs to the technical field of oil and gas exploitation. The method comprises the following steps: acquiring formation parameters, wherein the formation parameters comprise horizontal pressure and longitudinal pressure of a target formation; determining a cracking pressure for cracking the target fracture based on the formation parameters and the fracture angle of the target fracture; determining the amount of the plugging material for plugging the target crack based on the crack parameter, the opening pressure and the plugging parameter of the plugging material for plugging the target crack; the fracture parameters comprise the height of the target fracture, the width of the target fracture and the permeability of the target stratum, the plugging parameters comprise the displacement of the plugging material and the viscosity of the plugging material, and a reference is provided for the amount of the plugging material for plugging the target fracture, so that the accuracy of the determined amount of the plugging material is improved, and the accuracy of plugging the target fracture is improved.
Description
Technical Field
The application relates to the technical field of oil and gas exploitation, in particular to a method, a device, equipment and a storage medium for determining the dosage of plugging materials.
Background
The fractured reservoir has a large number of natural cracks, and acid liquid is injected into the natural cracks of the fractured reservoir to reform the fractured reservoir, so that the yield of the fractured reservoir is improved.
In the process of reforming a fractured reservoir, the injected acid liquor can enter a developed natural fracture to reform, and the acid liquor cannot enter an undeveloped natural fracture to cause incapability of reforming, so that after reforming the developed natural fracture, a temporary plugging material is required to be adopted to plug the developed natural fracture so as to consider reforming the undeveloped natural fracture.
However, since the amount of the plugging material for plugging a developing natural fracture cannot be determined, a method for determining the amount of the plugging material for plugging a natural fracture is needed.
Disclosure of Invention
The embodiment of the application provides a method, a device, equipment and a storage medium for determining the dosage of plugging materials, which provide references for the dosage of the plugging materials for plugging target cracks, and not only improve the accuracy of the determined dosage of the plugging materials, but also improve the accuracy of the plugging target cracks. The technical scheme provided by the embodiment of the application is as follows:
in one aspect, an embodiment of the present application provides a method for determining an amount of a plugging material, where the method includes:
acquiring formation parameters, wherein the formation parameters comprise horizontal pressure and longitudinal pressure of a target formation;
Determining a cracking pressure for cracking the target crack based on the formation parameter and a crack angle of the target crack;
Determining the amount of the plugging material for plugging the target crack based on the crack parameter of the target crack, the opening pressure and the plugging parameter of the plugging material for plugging the target crack;
wherein the fracture parameters include a height of the target fracture, a width of the target fracture, and a permeability of the target formation, and the plugging parameters include a displacement of the plugging material and a viscosity of the plugging material.
In one possible implementation, the method further includes:
Obtaining a target pressure applied to the target fracture;
Determining a number of opening the target fracture based on the target pressure and the opening pressure;
the determining the amount of the plugging material for plugging the target crack based on the crack parameter of the target crack, the opening pressure and the plugging parameter of the plugging material for plugging the target crack comprises:
And determining the amount of the plugging material for plugging each target crack based on the crack parameter of each target crack, the opening pressure and the plugging parameter of the plugging material for plugging the target crack.
In another possible implementation, in the case where the opening pressure is a tension pressure, the opening pressure satisfies the following requirements:
Wherein P net is the cracking pressure, σ h is the longitudinal pressure of the target stratum, σ H is the horizontal pressure of the target stratum, and θ is the angle between the target fracture and the horizontal direction.
In another possible implementation, the formation parameters further include a coefficient of friction of the target fracture, the cracking pressure satisfying the following requirements where the cracking pressure is a shear pressure:
wherein, P net is the opening pressure, σ h is the longitudinal pressure of the target stratum, σ H is the horizontal pressure of the target stratum, v f is the friction coefficient of the target fracture, and θ is the angle between the target fracture and the horizontal direction.
In another possible implementation, the formation parameters further include tensile strength, where the cracking pressure is that of an undeveloped fracture, the cracking pressure meets the following requirements:
Pnet≥σH-σh+St
Wherein P net is the cracking pressure, σ h is the longitudinal pressure of the target formation, σ H is the horizontal pressure of the target formation, and S t is the tensile strength.
In another possible implementation, the following formula is used to represent the amount of plugging material used to plug the target fracture:
Wherein ρ d is the apparent density of the plugging material; h f is the height of the target fracture; w f is the width of the target fracture; k d is the permeability of the target formation; mu is the viscosity of the plugging material; q is the displacement of the plugging material; Δp is the cracking pressure.
In another possible implementation, the plugging material includes a plurality of types, the method further comprising:
Based on the width of the target fracture, the type of plugging material employed is determined.
In another possible implementation manner, the determining the kind of the plugging material to be used based on the width of the target fracture includes:
Determining that the plugging material comprises a fibrous plugging material in the case that the width of the target fracture belongs to a first reference range; or alternatively
Determining that the plugging material comprises a fibrous plugging material and a2 mm particle plugging material in the case that the width of the target fracture belongs to a second reference range; or alternatively
Determining that the plugging material comprises a fiber plugging material, a 1-millimeter particle plugging material and a 4-millimeter particle plugging material under the condition that the width of the target crack belongs to a third reference range; or alternatively
Under the condition that the width of the target crack belongs to a fourth reference range, determining that the plugging material comprises a fiber plugging material, a 1-millimeter particle plugging material, a 4-millimeter particle plugging material and a 6-millimeter particle plugging material;
the first reference range is smaller than the second reference range, the second reference range is smaller than the third reference range, and the third reference range is smaller than the fourth reference range.
In another aspect, an embodiment of the present application provides a plugging material dosage determining device, including:
The parameter acquisition module is used for acquiring stratum parameters, wherein the stratum parameters comprise horizontal pressure, longitudinal pressure and tensile strength of a target stratum;
the pressure determining module is used for determining the opening pressure for opening the target fracture based on the stratum parameter and the fracture angle of the target fracture;
The dosage determining module is used for determining the dosage of the plugging material for plugging the target crack based on the crack parameter of the target crack, the opening pressure and the plugging parameter of the plugging material for plugging the target crack;
wherein the fracture parameters include a height of the target fracture, a width of the target fracture, and a permeability of the target formation, and the plugging parameters include a displacement of the plugging material and a viscosity of the plugging material.
In one possible implementation, the apparatus further includes:
The pressure acquisition module is used for acquiring target pressure applied to the target fracture;
A number determination module for determining a number of opening the target fracture based on the target pressure and the opening pressure;
The dosage determining module is used for determining the dosage of the plugging material for plugging each target crack based on the crack parameter of each target crack, the opening pressure and the plugging parameter of the plugging material for plugging the target crack.
In another possible implementation, in the case where the opening pressure is a tension pressure, the opening pressure satisfies the following requirements:
Wherein P net is the cracking pressure, σ h is the longitudinal pressure of the target stratum, σ H is the horizontal pressure of the target stratum, and θ is the angle between the target fracture and the horizontal direction.
In another possible implementation, in the case where the opening pressure is a shear pressure, the opening pressure satisfies the following requirements:
wherein, P net is the opening pressure, σ h is the longitudinal pressure of the target stratum, σ H is the horizontal pressure of the target stratum, v f is the friction coefficient of the target fracture, and θ is the angle between the target fracture and the horizontal direction.
In another possible implementation, the formation parameters further include tensile strength, where the cracking pressure is that of an undeveloped fracture, the cracking pressure meets the following requirements:
Pnet≥σH-σh+St
Wherein P net is the cracking pressure, σ h is the longitudinal pressure of the target formation, σ H is the horizontal pressure of the target formation, and S t is the tensile strength.
In another possible implementation, the following formula is used to represent the amount of plugging material used to plug the target fracture:
Wherein ρ d is the apparent density of the plugging material; h f is the height of the target fracture; w f is the width of the target fracture; k d is the permeability of the target formation; mu is the viscosity of the plugging material; q is the displacement of the plugging material; Δp is the cracking pressure.
In another possible implementation, the plugging material comprises a plurality of types, the device further comprising:
and the type determining module is used for determining the type of the plugging material based on the width of the target crack.
In another possible implementation manner, the category determining module is configured to:
Determining that the plugging material comprises a fibrous plugging material in the case that the width of the target fracture belongs to a first reference range; or alternatively
Determining that the plugging material comprises a fibrous plugging material and a2 mm particle plugging material in the case that the width of the target fracture belongs to a second reference range; or alternatively
Determining that the plugging material comprises a fiber plugging material, a 1-millimeter particle plugging material and a 4-millimeter particle plugging material under the condition that the width of the target crack belongs to a third reference range; or alternatively
Under the condition that the width of the target crack belongs to a fourth reference range, determining that the plugging material comprises a fiber plugging material, a 1-millimeter particle plugging material, a 4-millimeter particle plugging material and a 6-millimeter particle plugging material;
the first reference range is smaller than the second reference range, the second reference range is smaller than the third reference range, and the third reference range is smaller than the fourth reference range.
In another aspect, a terminal is provided that includes a processor and a memory having at least one program code stored therein, the at least one program code loaded and executed by the processor to perform operations as performed in the plugging material usage determination method.
In another aspect, a computer readable storage medium having stored therein at least one program code loaded and executed by a processor to perform operations as performed in the plugging material dosage determination method is provided.
In a further aspect, there is provided a computer program product or computer program comprising computer program code stored in a computer readable storage medium, the computer program code being read from the computer readable storage medium by a processor of a terminal, the computer program code being executed by the processor such that the terminal performs the operations performed in the plugging material dosage determination method as described in the above aspect.
The technical scheme provided by the embodiment of the application has the beneficial effects that at least:
According to the method, the device, the equipment and the storage medium provided by the embodiment of the application, the opening pressure of the opening target crack is determined based on the horizontal pressure and the longitudinal pressure of the target stratum, and the amount of the plugging material for plugging the target crack is determined based on the opening pressure, the crack parameter of the target crack, the opening pressure and the plugging parameter of the plugging material for plugging the target crack, so that a reference is provided for the amount of the plugging material for plugging the target crack, the accuracy of the determined amount of the plugging material is improved, and the accuracy of the plugging target crack is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method for determining the amount of plugging material provided by an embodiment of the application;
FIG. 2 is a flow chart of a method for determining the amount of plugging material provided by an embodiment of the application;
FIG. 3 is a schematic view of a target crack according to an embodiment of the present application;
FIG. 4 is a schematic view of a target fracture according to an embodiment of the present application;
FIG. 5 is a flow chart of a method for determining the amount of plugging material provided by an embodiment of the application;
FIG. 6 is a schematic structural view of a plugging material dosage determining device according to an embodiment of the present application;
FIG. 7 is a schematic view of another plugging material dosage determining device according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of a terminal according to an embodiment of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the embodiments of the present application will be described in further detail with reference to the accompanying drawings.
The method provided by the embodiment of the application is applied to the field of oil and gas exploitation, because acid liquor can enter into cracks with high permeability or opened in the process of modifying the cracks preferentially, the cracks are modified, and for the cracks with low permeability or not opened, the acid liquor cannot enter into the cracks to complete modification, and before the modified cracks are blocked by the blocking material, the amount of the blocking material is determined by adopting the method provided by the embodiment of the application, and then the cracks are blocked by adopting the blocking material with the determined amount of the blocking material, so that the acid liquor enters into the cracks with low permeability or not modified to modify.
Fig. 1 is a flow chart of determining the amount of plugging material according to an embodiment of the present application. Referring to fig. 1, the method is applied to a terminal, and includes:
101. And acquiring stratum parameters.
Wherein the formation parameters include a horizontal pressure and a longitudinal pressure of the target formation.
In an embodiment of the present application, the horizontal pressure is the pressure in the horizontal direction experienced by the target formation. The longitudinal pressure is the pressure in the longitudinal direction perpendicular to the horizontal direction to which the target formation is subjected. Tensile strength is the pressure to which the rock of the target formation is subjected to fracture.
102. Based on the formation parameters and the fracture angle of the target fracture, a cracking pressure is determined to crack the target fracture.
In the embodiment of the application, after the target fracture is formed, an included angle exists between the target fracture and the horizontal direction, and the opening pressure for opening the target fracture can be represented by the horizontal pressure and the longitudinal pressure of the target stratum, so that the opening pressure for opening the target fracture can be determined based on the acquired stratum parameters and the fracture angle of the target fracture.
103. And determining the amount of the plugging material for plugging the target crack based on the crack parameter, the opening pressure and the plugging parameter of the plugging material for plugging the target crack.
Wherein the fracture parameters include a height of the target fracture, a width of the target fracture, and a permeability of the target formation, and the plugging parameters include a displacement of the plugging material and a viscosity of the plugging material.
In the embodiment of the application, the amount of the plugging material for plugging the target crack is required to be determined, and the amount of the plugging material is required to be determined based on the size of the target crack, the opening pressure and the plugging parameters of the plugging material, so that the size of the target crack is determined based on the crack parameters of the target crack, and the amount of the plugging material is determined based on the opening pressure and the plugging parameters of the plugging material for plugging the target crack.
The embodiment of the application provides a method for determining the amount of plugging material for plugging a target fracture, wherein the opening pressure of an opening target fracture is determined based on the horizontal pressure and the longitudinal pressure of a target stratum, and the amount of the plugging material for plugging the target fracture is determined based on the opening pressure, the fracture parameters of the target fracture, the opening pressure and the plugging parameters of the plugging material for plugging the target fracture, so that a reference is provided for the amount of the plugging material for plugging the target fracture, the accuracy of the determined amount of the plugging material is improved, and the accuracy of the plugging target fracture is improved.
Fig. 2 is a flowchart of a method for determining the amount of plugging material according to an embodiment of the present application. Referring to fig. 2, the method is applied to a terminal, which may be a mobile phone, a tablet computer, a personal computer, or the like. The method comprises the following steps:
201. and acquiring stratum parameters.
The formation parameters include, among other things, horizontal pressure, longitudinal pressure, and tensile strength of the target formation.
In the embodiment of the application, the amount of the plugging material for plugging the gap in the stratum is required to be determined, and the amount of the plugging material is required to be determined according to the pressure of the target stratum, so that the stratum parameters of the target stratum, including the horizontal pressure, the longitudinal pressure and the tensile strength of the target stratum, are firstly obtained.
In some embodiments, formation parameters are determined from data during logging while drilling, or a core is taken from a target formation and then data measurements are taken from the core to obtain formation parameters for the target formation.
202. Based on the formation parameters and the fracture angle of the target fracture, a cracking pressure is determined to crack the target fracture.
In the embodiment of the application, if the crack is opened, acid liquid of the stratum can enter the crack with higher permeability preferentially to reform, and after the crack is opened, the acid liquid can enter the opened crack to reform the opened crack, and in order to seal the crack, the opening pressure of the opening target crack needs to be determined first, and then the amount of the sealing material for sealing the target crack is determined based on the opening pressure.
The target fracture is not horizontal or vertical in the formation and may be angled to the horizontal pressure, the longitudinal pressure in the acquired formation parameters, so the cracking pressure to crack the target fracture may be determined based on the formation parameters and the fracture angle of the target fracture. For example, hydraulic fractures and natural fractures form the angles shown in fig. 1, where hydraulic fractures are fractures formed by artificial fracturing, and natural fractures are fractures that have been formed in the formation of interest.
In addition, as for the opening modes of the natural fracture shown in fig. 3, including two modes of shear fracture and tensile fracture, how to obtain the opening pressures of the two fracture modes will be described below:
first kind: in the case where the opening pressure is a tension pressure, the opening pressure satisfies the following requirements:
Wherein P net is the opening pressure, sigma h is the longitudinal pressure of the target stratum, sigma H is the horizontal pressure of the target stratum, and θ is the angle between the target fracture and the horizontal direction.
In the embodiment of the application, the requirement that the tension pressure meets is P is more than or equal to sigma n, wherein P is the opening pressure of the target crack, and sigma n is the normal stress of the target crack. Taking FIG. 3 as an example, it can be seen from the two-dimensional elasticity theorySubstituting σ n into the formula of the requirement that the tension pressure satisfies, the tension pressure in the first case can be obtained.
In the process ofAt this time, P net takes the maximum value σ H-σh.
Second kind: in the case where the opening pressure is a shear pressure, the opening pressure satisfies the following requirements:
Wherein P net is the cracking pressure, sigma h is the longitudinal pressure of the target stratum, sigma H is the horizontal pressure of the target stratum, v f is the friction coefficient of the target fracture, and θ is the angle between the target fracture and the horizontal direction.
In embodiments of the present application, the shear pressure meets the requirements ofTaking FIG. 3 as an example, the/>, determined according to two-dimensional elasticity theorySubstituting σ n, σ into the formula of the requirement that the shearing pressure satisfies, the shearing pressure in the second case can be obtained.
The first case and the second case are described by taking the case where the target crack is a developed crack as an example. In some embodiments, if the target fracture is an undeveloped fracture, for example as shown in fig. 4, the cracking pressure of the target fracture is determined as follows:
The formation parameters also include a tensile stress, where the cracking pressure is that of an undeveloped fracture, the cracking pressure meets the following requirements:
Pnet≥σH-σh+St
Where P net is the cracking pressure, σ h is the longitudinal pressure of the target formation, σ H is the horizontal pressure of the target formation, and S t is the tensile strength.
In an embodiment of the present application, in the present application,Τ pθ =0, θ is the included angle between the line of any point of the seam boundary and the origin and the positive half axis x,/>Since l f > w, m≡1, σ θ＝Pnet-σh+σH, and since σ θ＝-St, P net≥σH-σh+St.
203. A target pressure applied to the target fracture is obtained.
204. The number of opening target cracks is determined based on the target pressure and the opening pressure.
In the embodiment of the application, since the target pressure is required to be applied to the target crack to open the target crack and the opening pressure of each target crack is fixed, the number of opened target cracks can be determined based on the obtained target pressure applied to the target crack and the opening pressure of the target crack.
In some embodiments, the number of open target fractures is the ratio of the acquired target pressure to the open pressure. For example, if the target pressure applied to the target cracks is 100MPa (megapascals) and the opening pressure of each target crack is 10MPa, it is determined to open 10-item target cracks.
205. And determining the amount of the plugging material for plugging each target crack based on the crack parameter, the opening pressure and the plugging parameter of the plugging material for plugging the target crack of each target crack.
Wherein the fracture parameters include a height of the target fracture, a width of the target fracture, and a permeability of the target formation, and the plugging parameters include a displacement of the plugging material and a viscosity of the plugging material.
In some embodiments, the amount of plugging material to plug the target fracture is expressed using the following formula:
Wherein ρ d is the apparent density of the plugging material; h f is the height of the target fracture; w f is the width of the target fracture; k d is the permeability of the target formation; mu is the viscosity of the plugging material; q is the displacement of the plugging material; Δp is the cracking pressure.
In some embodiments, the plugging material includes a plurality of types, and the embodiments of the present application require the type of plugging material used to plug the target fracture to be determined based on the width of the target fracture, and thus the type of plugging material used to be determined based on the width of the target fracture.
The plugging materials are divided into materials with various sizes, and if the widths of the target cracks are different, the plugging materials with different sizes are needed for plugging so as to improve the plugging effect on the target cracks.
In some embodiments, the type of plugging material employed is determined based on the width of the target fracture, including any of the following:
(1) In the case that the width of the target fracture falls within the first reference range, it is determined that the plugging material comprises a fibrous plugging material.
In the embodiment of the application, the first reference range is the minimum reference range, which also indicates that the width of the target crack is narrow, and the target crack can be plugged by directly adopting the fiber plugging material.
For example, the first reference range is 0-2 mm, or the first reference range is other values, which are not limited in this embodiment.
(2) In the case where the width of the target fracture falls within the second reference range, it is determined that the plugging material includes a fibrous plugging material and a 2 millimeter particulate plugging material.
In the embodiment of the application, the first reference range is smaller than the second reference range, which indicates that the width of the target crack is wider than that of the target crack in the case (1), the fiber plugging material and the 2mm particle plugging material are required to be mixed, and the mixed plugging material is adopted to plug the target crack.
For example, the second reference range is greater than 2mm and not greater than 4 mm, or the second reference range is another value, which is not limited by the embodiment of the present application.
In some embodiments, the fibrous plugging material and the 2 millimeter particulate plugging material are mixed in a predetermined ratio. For example, the preset ratio is 0.4, 0.5, 0.6 or other values, which are not limited in the embodiments of the present application.
(3) In the case where the width of the target fracture falls within the third reference range, it is determined that the plugging material includes a fibrous plugging material, a 1-millimeter-particle plugging material, and a 4-millimeter-particle plugging material.
In the embodiment of the application, the second reference range is smaller than the third reference range, which indicates that the width of the target crack is wider than that of the target crack in the case (2), the fiber plugging material, the 1 mm particle plugging material and the 4 mm particle plugging material are required, and the mixed plugging material is adopted to plug the target crack.
For example, the third reference range is greater than 4 mm and not greater than 6 mm, or the third reference range is another value, which is not limited by the embodiment of the present application.
In some embodiments, the fibrous plugging material, the 1 millimeter particulate plugging material, and the 4 millimeter particulate plugging material are mixed in a predetermined ratio. For example, the preset ratio is 1:2:3, 5:7:10, 3:3:5, or other values, which are not limited in the embodiments of the present application.
(4) In the case where the width of the target fracture falls within the fourth reference range, it is determined that the plugging material includes a fibrous plugging material, a 1-millimeter-particle plugging material, a 4-millimeter-particle plugging material, and a 6-millimeter-particle plugging material.
In the embodiment of the application, the third reference range is smaller than the fourth reference range, which indicates that the width of the target crack is wider than that of the target crack in the case (3), and the target crack is blocked by adopting the mixed blocking materials, namely the fiber blocking material, the 1 millimeter particle blocking material, the 4 millimeter particle blocking material and the 6 millimeter particle blocking material.
For example, the fourth reference range is greater than 6 mm and not greater than 7 mm, or the fourth reference range is another numerical value, which is not limited by the embodiment of the present application.
In some embodiments, the fibrous plugging material, 1 millimeter particulate plugging material, 4 millimeter particulate plugging material, and 6 millimeter particulate plugging material are mixed in a predetermined ratio. For example, the preset ratio is 1:1:1:1, 5:7:10:11, 3:3:5:5, or other values, which are not limited in the embodiments of the present application.
The first reference range is smaller than the second reference range, the second reference range is smaller than the third reference range, and the third reference range is smaller than the fourth reference range.
Referring to fig. 5, firstly, the opening pressure of the target fracture is determined according to the formation parameter calculation, then the number of the opened target fractures is determined, in addition, the fracture parameters of the target fracture are obtained according to the characterization state of the target fracture, then the type of the plugging target fracture is determined based on the width of the target fracture, then the composition of the plugging material for plugging the target fracture is determined, and the amount of the plugging material is determined based on the determined number of the target fractures. Wherein the target fracture includes natural fractures and artificial engineered fractures.
206. And determining the total amount of the plugging material based on the amount of the plugging material for plugging each target crack.
In the embodiment of the present application, the amount of the plugging material for plugging each target crack may be determined in step 205, and then the total amount of the plugging material is determined by obtaining the sum of the amounts of the plugging materials for plugging each target crack.
For example, the cohesive force measured was 24.1 to 92.4MPa, with a mean value of 69.3MPa, with sigma H、σh being 2.3MPa/100m and 1.98MPa/100m, respectively. When the applied target pressure is 15Mpa and the target crack with the approach angle less than or equal to 60-80 degrees is mainly tensile fracture, the density of the target crack is 0.52 pieces/m, the average height is 3m, the width is 3mm, the opening pressure of the target crack is 4.9-12.7 Mpa, under the condition that the discharge capacity is 2m 3/min and the width of the target crack is 3mm, the mixed plugging material of the 2mm particle plugging material and the 6mm fiber plugging material is adopted for plugging, and the calculated plugging material consumption is 250kg.
It should be noted that the embodiments of the present application are only described with reference to the steps 203-206. In another embodiment, steps 203-206 are optional steps, and step 207 may be performed directly without performing steps 203-206:
207. And determining the amount of the plugging material for plugging the target crack based on the crack parameter, the opening pressure and the plugging parameter of the plugging material for plugging the target crack.
In the embodiment of the application, after the opening pressure of the target crack is obtained, the amount of the plugging material for plugging the target crack is determined directly according to the crack parameter, the opening pressure and the plugging parameter of the plugging material for plugging the target crack.
The embodiment of the application provides a method for determining the amount of plugging material for plugging a target fracture, wherein the opening pressure of an opening target fracture is determined based on the horizontal pressure and the longitudinal pressure of a target stratum, and the amount of the plugging material for plugging the target fracture is determined based on the opening pressure, the fracture parameters of the target fracture, the opening pressure and the plugging parameters of the plugging material for plugging the target fracture, so that a reference is provided for the amount of the plugging material for plugging the target fracture, the accuracy of the determined amount of the plugging material is improved, and the accuracy of the plugging target fracture is improved.
Fig. 6 is a schematic structural diagram of a plugging material dosage determining device according to an embodiment of the present application. Referring to fig. 6, the apparatus includes:
a parameter acquisition module 601, configured to acquire formation parameters, where the formation parameters include a horizontal pressure, a longitudinal pressure, and a tensile strength of a target formation;
a pressure determination module 602 for determining a cracking pressure to crack the target fracture based on the formation parameter and the fracture angle of the target fracture;
The usage amount determining module 603 is configured to determine a usage amount of a plugging material for plugging the target crack based on a crack parameter of the target crack, a cracking pressure, and a plugging parameter of the plugging material for plugging the target crack;
Wherein the fracture parameters include a height of the target fracture, a width of the target fracture, and a permeability of the target formation, and the plugging parameters include a displacement of the plugging material and a viscosity of the plugging material.
In one possible implementation, referring to fig. 7, the apparatus further includes:
a pressure acquisition module 604 for acquiring a target pressure applied to the target fracture;
the number determination module 605 is configured to determine the number of opening target cracks based on the target pressure and the opening pressure:
the usage determining module 603 is configured to determine a usage of the plugging material for plugging each target fracture based on the fracture parameter, the opening pressure, and the plugging parameter of the plugging material for plugging the target fracture.
In another possible implementation, in the case where the opening pressure is a tension pressure, the opening pressure satisfies the following requirements:
Wherein P net is the opening pressure, sigma h is the longitudinal pressure of the target stratum, sigma H is the horizontal pressure of the target stratum, and θ is the angle between the target fracture and the horizontal direction.
In another possible implementation, where the cracking pressure is a shear pressure, the cracking pressure meets the following requirements:
Wherein P net is the cracking pressure, sigma h is the longitudinal pressure of the target stratum, sigma H is the horizontal pressure of the target stratum, v f is the friction coefficient of the target fracture, and θ is the angle between the target fracture and the horizontal direction.
In another possible implementation, the formation parameters further include tensile strength, where the cracking pressure is that of an undeveloped fracture, the cracking pressure meets the following requirements:
Pnet≥σH-σh+St
Where P net is the cracking pressure, σ h is the longitudinal pressure of the target formation, σ H is the horizontal pressure of the target formation, and S t is the tensile strength.
In another possible implementation, the following formula is used to represent the amount of plugging material that plugs the target fracture:
Wherein ρ d is the apparent density of the plugging material; h f is the height of the target fracture; w f is the width of the target fracture; k d is the permeability of the target formation; mu is the viscosity of the plugging material; q is the displacement of the plugging material; Δp is the cracking pressure.
In another possible implementation, the plugging material comprises a plurality of, referring to fig. 7, the device further comprises:
A type determination module 606 for determining the type of plugging material employed based on the width of the target fracture.
In another possible implementation, the category determination module 606 is configured to:
Determining that the plugging material comprises a fibrous plugging material in the case that the width of the target fracture belongs to a first reference range; or alternatively
Determining that the plugging material comprises a fiber plugging material and a 2mm particle plugging material in the case that the width of the target fracture belongs to a second reference range; or alternatively
Determining that the plugging material comprises a fiber plugging material, a 1-millimeter particle plugging material and a 4-millimeter particle plugging material under the condition that the width of the target crack belongs to a third reference range; or alternatively
In the case where the width of the target fracture falls within the fourth reference range, it is determined that the plugging material includes a fibrous plugging material, a 1-millimeter-particle plugging material, a 4-millimeter-particle plugging material, and a 6-millimeter-particle plugging material.
It should be noted that: the plugging material amount determining device provided in the above embodiment only illustrates the division of the above functional modules when determining the plugging material amount, and in practical application, the above functional allocation is performed by different functional modules according to needs, that is, the internal structure of the terminal is divided into different functional modules, so as to complete all or part of the functions described above. In addition, the plugging material amount determining device and the plugging material amount determining method provided in the foregoing embodiments belong to the same concept, and specific implementation processes thereof are detailed in the method embodiments and are not described herein again.
Fig. 8 is a schematic structural diagram of a terminal according to an embodiment of the present application. The terminal 800 may be a portable mobile terminal such as: a smart phone, a tablet computer, an MP3 player (Moving Picture Experts Group Audio Layer III, motion picture expert compression standard audio plane 3), an MP4 (Moving Picture Experts Group Audio Layer IV, motion picture expert compression standard audio plane 4) player, a notebook computer, or a desktop computer. Terminal 800 may also be referred to by other names of user devices, portable terminals, laptop terminals, desktop terminals, and the like.
In general, the terminal 800 includes: a processor 801 and a memory 802.
Processor 801 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and the like. The processor 801 may be implemented in at least one hardware form of DSP (DIGITAL SIGNAL Processing), FPGA (Field-Programmable gate array), PLA (Programmable Logic Array ). The processor 801 may also include a main processor, which is a processor for processing data in an awake state, also referred to as a CPU (Central Processing Unit ), and a coprocessor; a coprocessor is a low-power processor for processing data in a standby state. In some embodiments, the processor 801 may integrate a GPU (Graphics Processing Unit, image processor) for rendering and drawing of content required to be displayed by the display screen. In some embodiments, the processor 801 may also include an AI (ARTIFICIAL INTELLIGENCE ) processor for processing computing operations related to machine learning.
Memory 802 may include one or more computer-readable storage media, which may be non-transitory. Memory 802 may also include high-speed random access memory, as well as non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices. In some embodiments, a non-transitory computer readable storage medium in memory 802 is used to store at least one program code for execution by processor 801 to implement the borehole trajectory matching degree method provided by the method embodiments of the present application.
In some embodiments, the terminal 800 may further optionally include: a peripheral interface 803, and at least one peripheral. The processor 801, the memory 802, and the peripheral interface 803 may be connected by a bus or signal line. Individual peripheral devices may be connected to the peripheral device interface 803 by buses, signal lines, or a circuit board. Specifically, the peripheral device includes: at least one of radio frequency circuitry 804, a display 805, a camera assembly 806, audio circuitry 807, a positioning assembly 808, and a power supply 809.
Peripheral interface 803 may be used to connect at least one Input/Output (I/O) related peripheral to processor 801 and memory 802. In some embodiments, processor 801, memory 802, and peripheral interface 803 are integrated on the same chip or circuit board; in some other embodiments, either or both of the processor 801, the memory 802, and the peripheral interface 803 may be implemented on separate chips or circuit boards, which is not limited in this embodiment.
The Radio Frequency circuit 804 is configured to receive and transmit RF (Radio Frequency) signals, also known as electromagnetic signals. The radio frequency circuit 804 communicates with a communication network and other communication devices via electromagnetic signals. The radio frequency circuit 804 converts an electrical signal into an electromagnetic signal for transmission, or converts a received electromagnetic signal into an electrical signal. Optionally, the radio frequency circuit 804 includes: antenna systems, RF transceivers, one or more amplifiers, tuners, oscillators, digital signal processors, codec chipsets, subscriber identity module cards, and so forth. The radio frequency circuitry 804 may communicate with other terminals via at least one wireless communication protocol. The wireless communication protocol includes, but is not limited to: the world wide web, metropolitan area networks, intranets, generation mobile communication networks (2G, 3G, 4G, and 5G), wireless local area networks, and/or WiFi (WIRELESS FIDELITY ) networks. In some embodiments, the radio frequency circuit 804 may further include NFC (NEAR FIELD Communication) related circuits, which is not limited by the present application.
The display 805 is used to display a UI (User Interface). The UI may include graphics, text, icons, video, and any combination thereof. When the display 805 is a touch display, the display 805 also has the ability to collect touch signals at or above the surface of the display 805. The touch signal may be input as a control signal to the processor 801 for processing. At this time, the display 805 may also be used to provide virtual buttons and/or virtual keyboards, also referred to as soft buttons and/or soft keyboards. In some embodiments, the display 805 may be one and disposed on a front panel of the terminal 800; in other embodiments, the display 805 may be at least two, respectively disposed on different surfaces of the terminal 800 or in a folded design; in other embodiments, the display 805 may be a flexible display disposed on a curved surface or a folded surface of the terminal 800. Even more, the display 805 may be arranged in an irregular pattern other than rectangular, i.e., a shaped screen. The display 805 may be made of LCD (Liquid CRYSTAL DISPLAY), OLED (Organic Light-Emitting Diode), or other materials.
The camera assembly 806 is used to capture images or video. Optionally, the camera assembly 806 includes a front camera and a rear camera. Typically, the front camera is disposed on the front panel of the terminal and the rear camera is disposed on the rear surface of the terminal. In some embodiments, the at least two rear cameras are any one of a main camera, a depth camera, a wide-angle camera and a tele camera, so as to realize that the main camera and the depth camera are fused to realize a background blurring function, and the main camera and the wide-angle camera are fused to realize a panoramic shooting and Virtual Reality (VR) shooting function or other fusion shooting functions. In some embodiments, the camera assembly 806 may also include a flash. The flash lamp can be a single-color temperature flash lamp or a double-color temperature flash lamp. The dual-color temperature flash lamp refers to a combination of a warm light flash lamp and a cold light flash lamp, and can be used for light compensation under different color temperatures.
Audio circuitry 807 may include a microphone and a speaker. The microphone is used for collecting sound waves of users and the environment, converting the sound waves into electric signals, inputting the electric signals to the processor 801 for processing, or inputting the electric signals to the radio frequency circuit 804 for voice communication. For stereo acquisition or noise reduction purposes, a plurality of microphones may be respectively disposed at different portions of the terminal 800. The microphone may also be an array microphone or an omni-directional pickup microphone. The speaker is used to convert electrical signals from the processor 801 or the radio frequency circuit 804 into sound waves. The speaker may be a conventional thin film speaker or a piezoelectric ceramic speaker. When the speaker is a piezoelectric ceramic speaker, not only the electric signal can be converted into a sound wave audible to humans, but also the electric signal can be converted into a sound wave inaudible to humans for ranging and other purposes. In some embodiments, audio circuit 807 may also include a headphone jack.
The location component 808 is utilized to locate the current geographic location of the terminal 800 for navigation or LBS (Location Based Service, location-based services). The positioning component 808 may be a positioning component based on the United states GPS (Global Positioning System ), the Beidou system of China, or the Galileo system of Russia.
A power supply 809 is used to power the various components in the terminal 800. The power supply 809 may be an alternating current, direct current, disposable battery, or rechargeable battery. When the power supply 809 includes a rechargeable battery, the rechargeable battery may be a wired rechargeable battery or a wireless rechargeable battery. The wired rechargeable battery is a battery charged through a wired line, and the wireless rechargeable battery is a battery charged through a wireless coil. The rechargeable battery may also be used to support fast charge technology.
In some embodiments, the terminal 800 also includes one or more sensors 810. The one or more sensors 810 include, but are not limited to: acceleration sensor 811, gyroscope sensor 812, pressure sensor 813, fingerprint sensor 814, optical sensor 815, and proximity sensor 816.
The acceleration sensor 811 can detect the magnitudes of accelerations on three coordinate axes of the coordinate system established with the terminal 800. For example, the acceleration sensor 811 may be used to detect components of gravitational acceleration in three coordinate axes. The processor 801 may control the display screen 805 to display a user interface in a landscape view or a portrait view based on the gravitational acceleration signal acquired by the acceleration sensor 811. Acceleration sensor 811 may also be used for the acquisition of motion data of a game or user.
The gyro sensor 812 may detect a body direction and a rotation angle of the terminal 800, and the gyro sensor 812 may collect a 3D motion of the user to the terminal 800 in cooperation with the acceleration sensor 811. The processor 801 may implement the following functions based on the data collected by the gyro sensor 812: motion sensing (e.g., changing UI according to a tilting operation by a user), image stabilization at shooting, game control, and inertial navigation.
The pressure sensor 813 may be disposed at a side frame of the terminal 800 and/or at a lower layer of the display 805. When the pressure sensor 813 is disposed on a side frame of the terminal 800, a grip signal of the terminal 800 by a user may be detected, and the processor 801 performs left-right hand recognition or shortcut operation according to the grip signal collected by the pressure sensor 813. When the pressure sensor 813 is disposed at the lower layer of the display screen 805, the processor 801 controls the operability control on the UI interface according to the pressure operation of the user on the display screen 805. The operability controls include at least one of a button control, a scroll bar control, an icon control, and a menu control.
The fingerprint sensor 814 is used to collect a fingerprint of a user, and the processor 801 identifies the identity of the user based on the fingerprint collected by the fingerprint sensor 814, or the fingerprint sensor 814 identifies the identity of the user based on the collected fingerprint. Upon recognizing that the user's identity is a trusted identity, the processor 801 authorizes the user to perform relevant sensitive operations including unlocking the screen, viewing encrypted information, downloading software, paying for and changing settings, etc. The fingerprint sensor 814 may be disposed on the front, back, or side of the terminal 800. When a physical key or vendor Logo is provided on the terminal 800, the fingerprint sensor 814 may be integrated with the physical key or vendor Logo.
The optical sensor 815 is used to collect the ambient light intensity. In one embodiment, the processor 801 may control the display brightness of the display screen 805 based on the intensity of ambient light collected by the optical sensor 815. Specifically, when the intensity of the ambient light is high, the display brightness of the display screen 805 is turned up; when the ambient light intensity is low, the display brightness of the display screen 805 is turned down. In another embodiment, the processor 801 may also dynamically adjust the shooting parameters of the camera module 806 based on the ambient light intensity collected by the optical sensor 815.
A proximity sensor 816, also referred to as a distance sensor, is typically provided on the front panel of the terminal 800. The proximity sensor 816 is used to collect the distance between the user and the front of the terminal 800. In one embodiment, when the proximity sensor 816 detects that the distance between the user and the front of the terminal 800 gradually decreases, the processor 801 controls the display 805 to switch from the bright screen state to the off screen state; when the proximity sensor 816 detects that the distance between the user and the front surface of the terminal 800 gradually increases, the processor 801 controls the display 805 to switch from the off-screen state to the on-screen state.
Those skilled in the art will appreciate that the structure shown in fig. 8 is not limiting and that more or fewer components than shown may be included or certain components may be combined or a different arrangement of components may be employed.
The embodiment of the application also provides a computer readable storage medium, wherein at least one program code is stored in the computer readable storage medium, and the at least one program code is loaded and executed by a processor to realize the operation executed in the plugging material dosage determining method of the embodiment.
Embodiments of the present application also provide a computer program product or computer program comprising computer program code stored in a computer readable storage medium, the computer program code being read from the computer readable storage medium by a processor of a terminal, the computer program code being executed by the processor such that the terminal performs the operations performed in the plugging material usage determination method as described in the above aspect.
The foregoing description is only for the convenience of those skilled in the art to understand the technical solution of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (6)
1. A method for determining the amount of plugging material, the method comprising:
Acquiring stratum parameters, wherein the stratum parameters comprise horizontal pressure, longitudinal pressure and tensile strength of a target stratum, and the tensile strength is the pressure applied when rock of the target stratum breaks;
acquiring a target pressure applied to a target fracture;
Under the condition that the target fracture is a developed section in a natural fracture, opening the target fracture in a tensile fracture mode, and determining a first opening pressure for opening the target fracture on the premise of meeting a first target inequality based on the formation parameter and a fracture angle of the target fracture, wherein the natural fracture is a formed fracture in the target formation, and the first target inequality is as follows:
；
Wherein, For the opening pressure,/>For the longitudinal pressure of the target formation,/>Is the horizontal pressure of the target stratum,/>An angle between the target crack and the horizontal direction;
and under the condition that the target fracture is a developed section in the natural fracture, opening the target fracture in a shearing fracture mode, and determining the opening pressure for opening the target fracture on the premise that a second target inequality is met based on the stratum parameter and the fracture angle of the target fracture, wherein the second target inequality is as follows:
；
Wherein, For the opening pressure,/>For the longitudinal pressure,/>For the horizontal pressure,/>Friction coefficient of the target fracture,/>An angle between the target crack and the horizontal direction;
And under the condition that the target fracture is an undeveloped section in the natural fracture, determining the opening pressure for opening the target fracture on the premise of meeting a third target inequality based on the stratum parameter, wherein the third target inequality is as follows:
；
Wherein, For the opening pressure,/>For the longitudinal pressure of the target formation,/>For the horizontal pressure of the target formation,/>Is the tensile strength;
Determining a number of opening the target fracture based on the target pressure and the opening pressure;
determining the type of the plugging material based on the width of the target crack;
Determining the amount of plugging material for plugging each target crack based on the crack parameter of each target crack, the opening pressure and the plugging parameter of the plugging material for plugging the target crack;
wherein the fracture parameters include a height of the target fracture, a width of the target fracture, and a permeability of the target formation, and the plugging parameters include a displacement of the plugging material and a viscosity of the plugging material.
2. The method of claim 1, wherein the amount of plugging material used to plug the target fracture is expressed by the formula:
；
Wherein ρ d is the apparent density of the plugging material; h f is the height of the target fracture; w f is the width of the target fracture; k d is the permeability of the target formation; mu is the viscosity of the plugging material; q is the displacement of the plugging material; Is the cracking pressure.
3. The method of claim 1, wherein the determining the type of plugging material employed based on the width of the target fracture comprises:
Determining that the plugging material comprises a fibrous plugging material in the case that the width of the target fracture belongs to a first reference range; or alternatively
Determining that the plugging material comprises a fibrous plugging material and a2 mm particle plugging material in the case that the width of the target fracture belongs to a second reference range; or alternatively
Determining that the plugging material comprises a fiber plugging material, a 1-millimeter particle plugging material and a 4-millimeter particle plugging material under the condition that the width of the target crack belongs to a third reference range; or alternatively
Under the condition that the width of the target crack belongs to a fourth reference range, determining that the plugging material comprises a fiber plugging material, a 1-millimeter particle plugging material, a 4-millimeter particle plugging material and a 6-millimeter particle plugging material;
the first reference range is smaller than the second reference range, the second reference range is smaller than the third reference range, and the third reference range is smaller than the fourth reference range.
4. A plugging material dosage determining device, the device comprising:
the parameter acquisition module is used for acquiring stratum parameters, wherein the stratum parameters comprise horizontal pressure, longitudinal pressure and tensile strength of a target stratum, and the tensile strength is the pressure applied to the target stratum when the rock breaks;
a pressure acquisition module for acquiring a target pressure applied to the target fracture;
the pressure determining module is configured to open the target fracture in a tensile fracture manner if the target fracture is a developed segment in a natural fracture, and determine a first opening pressure for opening the target fracture on the premise of satisfying a first target inequality based on the formation parameter and a fracture angle of the target fracture, where the natural fracture is a formed fracture in the target formation, and the first target inequality is:
；
Wherein, Is the opening pressure,/>For the longitudinal pressure of the target formation,/>Is the horizontal pressure of the target stratum,/>An angle between the target crack and the horizontal direction;
The pressure determining module is further configured to, when the target fracture is a developed segment in the natural fracture, open the target fracture in a shearing fracture manner, determine an opening pressure for opening the target fracture on the premise of satisfying a second target inequality based on the formation parameter and a fracture angle of the target fracture, where the second target inequality is:
；
Wherein, For the opening pressure,/>For the longitudinal pressure,/>For the horizontal pressure,/>Friction coefficient of the target fracture,/>An angle between the target crack and the horizontal direction;
The pressure determining module is further configured to determine, based on the formation parameter, a cracking pressure for cracking the target fracture on the premise of satisfying a third target inequality, where the third target inequality is:
；
Wherein, For the opening pressure,/>For the longitudinal pressure of the target formation,/>For the horizontal pressure of the target formation,/>Is the tensile strength;
A number determination module for determining a number of opening the target fracture based on the target pressure and the opening pressure;
the type determining module is used for determining the type of the adopted plugging material based on the width of the target crack;
The dosage determining module is used for determining the dosage of the plugging material for plugging each target crack based on the crack parameter of each target crack, the opening pressure and the plugging parameter of the plugging material for plugging the target crack;
wherein the fracture parameters include a height of the target fracture, a width of the target fracture, and a permeability of the target formation, and the plugging parameters include a displacement of the plugging material and a viscosity of the plugging material.
5. A terminal comprising a processor and a memory, wherein the memory has stored therein at least one program code that is loaded and executed by the processor to carry out the operations performed in the plugging material usage determination method of any one of claims 1 to 3.
6.A computer readable storage medium having stored therein at least one program code, the at least one program code being loaded and executed by a processor to perform the operations performed in the plugging material usage determination method of any one of claims 1 to 3.
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