A method and system for treating crystal dissolution holes in sedimentary rock strata

Abstract

The present invention discloses a method and system for treating crystal dissolution holes in sedimentary rock formations, the method comprising: obtaining the mineral composition of gypsum salt crystals in sedimentary rock formations, thereby obtaining the ionic composition of sparingly soluble electrolytes in the gypsum salt crystals; obtaining the mineral composition of rocks in the occurrence environment of the gypsum salt crystals, and obtaining the mineral composition of the main filling material for filling the dissolution holes; calculating an admixture that inhibits the generation of the ionic composition of the sparingly soluble electrolyte and has an influence range on the mineral composition of the rock and the main filling material. In the present invention, the problem of uncertainty in the corrosion resistance and durability of the filling materials in the prior art is solved, and the gypsum salt crystal dissolution holes in the karst are treated by a method that affects the precipitation-crystallization-dissolution dissociation equilibrium relationship between the gypsum salt crystal electrolyte and its corresponding ions in an aqueous solution, which has a stronger guiding significance for treating such engineering geological problems.

Description

Technical Field

[0001] The invention relates to the field of dissolution hole treatment, and in particular to a treatment method and system for crystalline dissolution holes in sedimentary rock strata. Background Art

[0002] The crystals in the rock strata mainly include sulfate crystals and carbonate crystals. The sulfate crystals are mainly minerals such as gypsum (CaSO4·H2O), calcium glauberite (Na2SO4·CaSO4) and glauberite (Na2SO4·10H2O), and carbonate crystals include limestone, dolomite, marl, etc. According to the origin, one is the primary evaporation crystallization and sedimentary diagenesis formed in a relatively independent and closed space during the geological history period of dry climate and strong evaporation; the other is that under the influence of internal and external dynamic geological effects, a large number of structural joints, weathering cracks, and construction unloading cracks are formed in the rock strata. Under the influence of various effects, when the crystal ion crystallization effect is greater than the dissolution effect, the ion components of the gypsum crystals crystallize in the runoff process and are stored in the cracks. When the content is large, it will be developed as a mineral resource. The low-content gypsum salt crystals exist in the form of fissure veins, spots, and lumps. When the environmental conditions change in the later stage, the dissolution intensity is greater than the crystallization intensity. When discharged with groundwater runoff, dissolution holes will be formed in the rock formation. The dissolution process not only causes the strength of the gypsum salt crystals and their associated rock mass to decrease, but also seriously damages the integrity of the rock mass containing gypsum salt. When there are dissolution holes of calcium glauberite gypsum salt crystals within the stress influence depth range of the bearing layer of the building (structure), it will have an adverse effect on the safety of the building (structure).

[0003] At present, in the process of engineering construction, the method of filling the holes with cement concrete is mainly used to treat the karst holes in the rock formation. For example, in the article "A Brief Discussion on the Application of Various Treatment Methods in the Foundation Treatment of the Karst Holes in Chengdu's Gypsum Mudstone", it is disclosed that the holes of the piles with large-diameter holes (height over 2m) are filled with riprap grouting, and the general karst hole areas are filled with drilling grouting. However, when the method is applied to places with high gypsum salt crystal ion content, the presence of various ions is uncertain about the corrosiveness of the filling treatment, and there is uncertainty about the durability of the filling treatment project. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a method and system for treating crystal dissolution holes in sedimentary rock formations.

[0005] The objective of the present invention is achieved through the following technical solutions:

[0006] A first aspect of the present invention provides a method for treating crystal dissolution holes in a sedimentary rock formation, comprising the following steps:

[0007] Obtaining the mineral composition of gypsum salt crystals in sedimentary rock formations, thereby obtaining the ion composition of sparingly soluble electrolytes in the gypsum salt crystals;

[0008] Obtain the mineral composition of the rock in the occurrence environment of the gypsum salt crystals, and obtain the mineral composition of the main filling material for filling the dissolution holes;

[0009] The additive that suppresses the generation of the ionic components of the sparingly soluble electrolyte and has an influence range on the mineral components of the rock and the main filler is calculated.

[0010] Furthermore, the gypsum salt crystals include sulfate rock crystals and carbonate rock crystals. The sulfate rock crystals include gypsum, calcium glauberite and sodium sulfate, and the carbonate rock crystals include limestone, dolomite and marl.

[0011] A second aspect of the present invention provides a system for treating crystal dissolution holes in a sedimentary rock formation, comprising:

[0012] The first testing device is used to test the mineral composition of gypsum salt crystals in sedimentary rock formations, so as to obtain the ion composition of the sparingly soluble electrolyte in the gypsum salt crystals;

[0013] The second testing device is used to test the mineral composition of rocks in the occurrence environment of gypsum salt crystals;

[0014] The third testing device is used to test the mineral composition of the main filling material for filling the dissolution holes;

[0015] An admixture calculation device, used for calculating an admixture that suppresses the generation of ion components of the sparingly soluble electrolyte and has an influence range on the mineral components of the rock and the main filling material according to the test results of the first test device, the second test device and the third test device;

[0016] A filling material production device is used to mix the filling main material and the admixture to obtain the filling material for the dissolution holes;

[0017] The filling device is used to fill the filling material into the dissolution holes.

[0018] Furthermore, the gypsum salt crystals include sulfate rock crystals and carbonate rock crystals. The sulfate rock crystals include gypsum, calcium glauberite and sodium sulfate. The carbonate rock crystals include limestone, dolomite, marl and the like.

[0019] A third aspect of the present invention provides a method for treating crystal dissolution holes in a sedimentary rock formation, comprising the following steps:

[0020] Obtain the mineral composition of gypsum salt crystals in sedimentary rock formations, thereby obtaining the ion composition of sparingly soluble electrolytes in the gypsum salt crystals, and calculating the solubility product constant of sparingly soluble electrolytes under corresponding conditions;

[0021] Obtaining the solubility of the ion components corresponding to the sparingly soluble electrolyte in the groundwater containing the recharge water source at the sedimentary rock formation location, and calculating the ion product of the sparingly soluble electrolyte using the solubility;

[0022] When it is determined that the solubility product constant of the sparingly soluble electrolyte is greater than the corresponding ion product, dissolution will occur, and further admixture calculation is performed, including: obtaining the mineral composition of the rock in the occurrence environment of the gypsum salt crystals, and obtaining the mineral composition of the main filling material that fills the dissolution holes; calculating the admixture that inhibits the generation of the ion components of the sparingly soluble electrolyte based on the salt effect and the common ion effect, and has an influence range on the mineral composition of the rock and the main filling material.

[0023] Furthermore, the gypsum salt crystals include sulfate rock crystals and carbonate rock crystals. The sulfate rock crystals include gypsum, calcium glauberite and sodium sulfate. The carbonate rock crystals include limestone, dolomite, marl and the like.

[0024] Further, when it is determined that the solubility product constant is less than or equal to the ion product, no admixture calculation is performed.

[0025] A fourth aspect of the present invention provides a system for treating crystal dissolution holes in a sedimentary rock formation, comprising:

[0026] The fourth testing device is used to test the mineral composition of gypsum salt crystals in sedimentary rock formations, so as to obtain the ion composition of the sparingly soluble electrolyte in the gypsum salt crystals;

[0027] A fifth testing device is used to obtain the solubility of ion components corresponding to sparingly soluble electrolytes in groundwater containing recharge water sources at the sedimentary rock formation location;

[0028] The sixth testing device is used to test the mineral composition of rocks in the occurrence environment of gypsum salt crystals;

[0029] The seventh testing device is used to test the mineral composition of the main filling material for filling the dissolution holes;

[0030] The admixture judgment and calculation device is used to calculate the solubility product constant of the sparingly soluble electrolyte under corresponding conditions, and calculate the ion product of the sparingly soluble electrolyte using the solubility. When it is judged that the solubility product constant of the sparingly soluble electrolyte is greater than the corresponding ion product, dissolution will occur, and further admixture calculation is performed, including: according to the test results of the fourth test device, the sixth test device and the seventh test device, calculating the admixture that inhibits the generation of the ion components of the sparingly soluble electrolyte based on the salt effect and the common ion effect, and has an influence range condition on the mineral components of the rock and the main filling material;

[0031] A filling material production device produces filling materials according to the admixture calculation results;

[0032] The filling device is used to fill the filling material into the dissolution holes.

[0033] Furthermore, the gypsum salt crystals include sulfate rock crystals and carbonate rock crystals. The sulfate rock crystals include gypsum, calcium glauberite and sodium sulfate, and the carbonate rock crystals include limestone, dolomite and marl.

[0034] Further, when it is determined that the solubility product constant is less than or equal to the ion product, no admixture calculation is performed.

[0035] The beneficial effects of the present invention are:

[0036] In an exemplary embodiment of the present invention, in order to solve the uncertainty in the corrosion resistance and durability of the filling materials in the prior art, a method for treating the dissolution holes based on the dissolution-crystallization mechanism of the gypsum salt crystals is provided. The method treats the karst gypsum salt crystal dissolution holes by affecting the precipitation crystallization-dissolution dissociation equilibrium relationship between the electrolyte of the gypsum salt crystals and their corresponding ions in the aqueous solution. It has a stronger guiding significance for treating such engineering geological problems, and the treatment project is more reliable in terms of corrosion resistance and durability. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 A flowchart of a method for treating crystal dissolution holes in a sedimentary rock formation provided in an exemplary embodiment of the present invention;

[0038] Figure 2 A block diagram of a processing system for crystal dissolution holes in a sedimentary rock formation provided in an exemplary embodiment of the present invention;

[0039] Figure 3 A flowchart of a method for treating crystal dissolution holes in a sedimentary rock formation provided in another exemplary embodiment of the present invention;

[0040] Figure 4A block diagram of a processing system for crystal dissolution holes in a sedimentary rock formation provided in yet another exemplary embodiment of the present invention. DETAILED DESCRIPTION

[0041] The technical solution of the present invention is described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] In the description of the present invention, it should be noted that the directions or positional relationships indicated by "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are directions or positional relationships based on the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0045] The following exemplary embodiments mainly involve situations in which the safety of buildings (structures) is affected by the dissolution of crystals in the rock strata within the stress-bearing depth range of the foundation bearing layer of industrial and civil buildings, resulting in foundation settlement under the self-weight load of the building structure and the upper soil layer; or situations in which holes caused by the dissolution of gypsum crystals already exist at the site of the proposed project and the holes are treated before the construction of the project.

[0046] See also Figure 1 , Figure 1 A method for treating crystal dissolution holes in a sedimentary rock formation provided in an exemplary embodiment of the present invention is shown, comprising the following steps:

[0047] Obtaining the mineral composition of gypsum salt crystals in sedimentary rock formations, thereby obtaining the ion composition of sparingly soluble electrolytes in the gypsum salt crystals;

[0048] Obtain the mineral composition of the rock in the occurrence environment of the gypsum salt crystals, and obtain the mineral composition of the main filling material for filling the dissolution holes;

[0049] The additive that suppresses the generation of the ionic components of the sparingly soluble electrolyte and has an influence range on the mineral components of the rock and the main filler is calculated.

[0050] Specifically, in order to solve the uncertainty in the prior art in terms of corrosion resistance and durability of filling materials, in this exemplary embodiment, a method for treating dissolution holes based on the dissolution-crystallization mechanism of gypsum salt crystals is provided. The method treats the karst gypsum salt crystal dissolution holes by affecting the precipitation crystallization-dissolution dissociation equilibrium relationship between the gypsum salt crystal electrolyte and its corresponding ions in the aqueous solution:

[0051] That is, by adding an admixture material that can inhibit further dissolution of crystals or promote precipitation crystallization into the filling treatment material, the admixture is obtained based on the generation inhibition of the ion components of the sparingly soluble electrolyte in the gypsum salt crystals, and the comprehensive consideration of the mineral composition of the rock and the main filling material within the influence range. It has a stronger guiding significance for dealing with such engineering geological problems, and the treatment project is more reliable in terms of corrosion resistance and durability.

[0052] It should also be noted that this treatment method is mainly aimed at the analysis and selection of admixtures.

[0053] More specifically, the sparingly soluble electrolyte for the gypsum salt crystals is A n B m In the form of, the following precipitation reaction will occur:

[0054]

[0055] During the analysis process, an appropriate amount of filler material is added to generate A m+ and B n- The additive of the substance can inhibit the formation of ionic components of the sparingly soluble electrolyte, that is, control the chemical reaction not to move to the right.

[0056] At the same time, the admixture needs to take into account the corrosive influence conditions of the rock mass and the filling material, that is, the admixture has an influence range condition on the mineral components of the rock and the main filling material.

[0057] More preferably, in an exemplary embodiment, the gypsum salt crystals include sulfate rock crystals and carbonate rock crystals, the sulfate rock crystals include gypsum (CaSO4·H2O), calcium glauber's salt (Na2SO4·CaSO4) and sodium glauber's salt (Na2SO4·10H2O), and the carbonate rock crystals include limestone, dolomite, marl, etc.

[0058] Correspondingly, considering the influence of rock and soil and filling materials, when the gypsum salt crystals are calcium carbonate rocks, the corresponding admixtures can be components containing sulfate ions to form insoluble calcium sulfate to slow down the dissolution of salt rocks, or alkaline substances to increase the pH value of the aqueous solution to slow down the dissolution of carbonate rocks; when the gypsum salt crystals are calcium sulfate rocks, the corresponding admixtures can be components containing sulfate ions or calcium ions to increase the solubility of the corresponding examples, slow down the dissolution reaction of calcium sulfate or reverse the reaction to cause precipitation crystallization.

[0059] The same inventive concept as the above exemplary embodiment is provided. Figure 2 As shown, another exemplary embodiment of the present invention provides a system for processing crystal dissolution holes in sedimentary rock formations, comprising:

[0060] The first testing device is used to test the mineral composition of gypsum salt crystals in sedimentary rock formations, so as to obtain the ion composition of the sparingly soluble electrolyte in the gypsum salt crystals;

[0061] The second testing device is used to test the mineral composition of rocks in the occurrence environment of gypsum salt crystals;

[0062] The third testing device is used to test the mineral composition of the main filling material for filling the dissolution holes;

[0063] An admixture calculation device, used for calculating an admixture that suppresses the generation of ion components of the sparingly soluble electrolyte and has an influence range on the mineral components of the rock and the main filling material according to the test results of the first test device, the second test device and the third test device;

[0064] A filling material production device is used to mix the filling main material and the admixture to obtain the filling material for the dissolution holes;

[0065] The filling device is used to fill the filling material into the dissolution holes.

[0066] Specifically, in this exemplary embodiment, the ionic components of the sparingly soluble electrolyte in the gypsum salt crystals, the mineral components of the rocks in the occurrence environment of the gypsum salt crystals, and the mineral components of the main filling material for filling the dissolution holes are tested using a first testing device, a second testing device, and a third testing device, respectively. The test results are then transmitted to an admixture calculation device, which calculates an admixture that inhibits the generation of the ionic components of the sparingly soluble electrolyte and is within the influence range of the mineral components of the rock and the main filling material. Then, a filling material production device mixes the main filling material and the admixture to produce a filling material for the dissolution holes. Finally, a filling device is used to fill the filling material into the dissolution holes (the filling method can be selected according to actual conditions and is not limited here).

[0067] More preferably, in an exemplary embodiment, the gypsum salt crystals include sulfate rock crystals and carbonate rock crystals, the sulfate rock crystals include gypsum, calcium glauberite and sodium sulfate, and the carbonate rock crystals include limestone, dolomite, marl and the like.

[0068] See also Figure 3 , Figure 3 A method for treating crystal dissolution holes in a sedimentary rock formation provided in an exemplary embodiment of the present invention is shown, comprising the following steps:

[0069] Obtain the mineral composition of gypsum salt crystals in sedimentary rock formations, thereby obtaining the ion composition of sparingly soluble electrolytes in the gypsum salt crystals, and calculating the solubility product constant of sparingly soluble electrolytes under corresponding conditions;

[0070] Obtaining the solubility of the ion components corresponding to the sparingly soluble electrolyte in the groundwater containing the recharge water source at the sedimentary rock formation location, and calculating the ion product of the sparingly soluble electrolyte using the solubility;

[0071] When it is determined that the solubility product constant of the sparingly soluble electrolyte is greater than the corresponding ion product, dissolution will occur, and further admixture calculation is performed, including: obtaining the mineral composition of the rock in the occurrence environment of the gypsum salt crystals, and obtaining the mineral composition of the main filling material that fills the dissolution holes; calculating the admixture that inhibits the generation of the ion components of the sparingly soluble electrolyte based on the salt effect and the common ion effect, and has an influence range on the mineral composition of the rock and the main filling material.

[0072] Specifically, in the present exemplary embodiment, the same problem as the aforementioned exemplary embodiment is solved (i.e., the uncertainty of the prior art in terms of the corrosion resistance and durability of the filling material), and the same effect is achieved (i.e., providing a method for treating dissolution holes based on the dissolution-crystallization mechanism of gypsum salt crystals, which treats the karst gypsum salt crystal dissolution holes by affecting the precipitation crystallization-dissolution dissociation equilibrium relationship between the gypsum salt crystal electrolytes and their corresponding ions in an aqueous solution).

[0073] That is, by adding an admixture material that can inhibit further dissolution of crystals or promote precipitation crystallization into the filling treatment material, the admixture is obtained based on the generation inhibition of the ion components of the sparingly soluble electrolyte in the gypsum salt crystals, and the comprehensive consideration of the mineral composition of the rock and the main filling material within the influence range. It has a stronger guiding significance for dealing with such engineering geological problems, and the treatment project is more reliable in terms of corrosion resistance and durability.

[0074] However, compared with the aforementioned exemplary embodiment, as long as the mineral composition of the gypsum salt crystals in the sedimentary rock formation is obtained, the admixture is calculated, which has some disadvantages, such as: (1) Although the sparingly soluble electrolytes of the gypsum salt crystals will undergo precipitation reaction, in some cases, they will not decompose. Therefore, in some cases, it is not necessary to add admixtures to inhibit the generation of ion components; (2) The mineral composition of some rocks and the main filling materials have strict "influence conditions" on the admixtures (such as a large number of mineral components). Simply adding admixtures will make the calculation process more complicated and rigorous; (3) The cost of some admixtures is too high.

[0075] Therefore, in this exemplary embodiment, the mineral composition of the gypsum salt crystals in the sedimentary rock formation is first obtained to obtain the ionic composition of the sparingly soluble electrolyte in the gypsum salt crystals, and the solubility product constant of the sparingly soluble electrolyte under corresponding conditions is calculated; then the solubility of the ionic composition corresponding to the sparingly soluble electrolyte in the groundwater (including the replenishment water source) at the sedimentary rock formation location is obtained, and the ionic product of the sparingly soluble electrolyte is calculated using the solubility; when it is judged that the solubility product constant is greater than the ionic product, dissolution will occur, and further admixture calculation is performed.

[0076] More specifically, the sparingly soluble electrolyte A in the gypsum salt crystals n B m Under certain conditions, the solubility product constant According to the steps, the groundwater and the groundwater in its recharge source are tested to obtain the solubility c of various ion components, and the ion product J of each sparingly soluble electrolyte is calculated as follows for the following precipitation reaction:

[0077]

[0078] The ion product J is:

[0079] J={c(A m+ )} n {c(B n-} m

[0080] Compare now The relative size of J determines whether dissolution occurs:

[0081] The above reaction will shift to the left, and precipitation crystallization will occur;

[0082] The equilibrium state between the dissolution and dissociation of the corresponding electrolyte and the precipitation and crystallization in the aqueous solution;

[0083] When the corresponding electrolyte ion solution is in an unsaturated state, the above reaction will move to the right and the electrolyte will dissolve.

[0084] Therefore, considering the chemical composition of the recharge water source, the recharge flow rate, the impact of the runoff process on the solubility of the main ions and the comparison results of the above ion product and solubility product constants, when filling the erosion holes, under the condition of considering the corrosiveness of the rock and soil and the filling materials, an appropriate amount of A can be added to the filling material to generate m+ and B n- Additives of substances to make the sparingly soluble electrolyte A in groundwater n B m (s) The corresponding ion product (J = {c(A m+ )} n {c(B n-} m ) is always greater than Control the chemical reaction so that it does not move to the right.

[0085] For example, for all rock mineral components and mineral components of filling materials in the sulfate gypsum crystal environment, query the solubility product constant of the sparingly soluble electrolytes of other mineral components except sulfate. Calculate the corresponding ion product J, and compare them one by one to determine whether the added admixtures for filling treatment will affect the dissolution of rock minerals and filling main materials. Otherwise, the added materials should be replaced or other materials should be added.

[0086] According to the mechanism of pore formation caused by dissolution of sulfate gypsum crystals in rock strata, and comprehensive consideration of groundwater environmental conditions, rock mineral composition and the mineral composition of the main materials for filling construction, by adding admixture materials to the filling treatment materials that can inhibit further dissolution of crystals or promote precipitation crystallization, it has a stronger guiding significance for dealing with such engineering geological problems, and the treatment project is more reliable in terms of corrosion resistance and durability.

[0087] It should also be noted that this treatment method is mainly aimed at the analysis and selection of admixtures.

[0088] More preferably, in an exemplary embodiment, the gypsum salt crystals include sulfate rock crystals and carbonate rock crystals, the sulfate rock crystals include gypsum, calcium glauberite and sodium sulfate, and the carbonate rock crystals include limestone, dolomite, marl and the like.

[0089] More preferably, in an exemplary embodiment, when it is determined that the solubility product constant is less than or equal to the ion product, no additive calculation is performed.

[0090] Specifically, in this exemplary embodiment, when it is determined that the solubility product constant is greater than the ion product, the precipitation reaction will move to the left and precipitation crystallization will occur; when it is determined that the solubility product constant is equal to the ion product, the corresponding electrolyte dissolution dissociation and precipitation crystallization in the aqueous solution are in a state of equilibrium. In both cases, no additive is required for control.

[0091] The same inventive concept as the above exemplary embodiment is provided. Figure 4 As shown, another exemplary embodiment of the present invention provides a system for processing crystal dissolution holes in sedimentary rock formations, comprising:

[0092] The fourth testing device is used to test the mineral composition of gypsum salt crystals in sedimentary rock formations, so as to obtain the ion composition of the sparingly soluble electrolyte in the gypsum salt crystals;

[0093] A fifth testing device is used to obtain the solubility of ion components corresponding to sparingly soluble electrolytes in groundwater containing recharge water sources at the sedimentary rock formation location;

[0094] The sixth testing device is used to test the mineral composition of rocks in the occurrence environment of gypsum salt crystals;

[0095] The seventh testing device is used to test the mineral composition of the main filling material for filling the dissolution holes;

[0096] The admixture judgment and calculation device is used to calculate the solubility product constant of the sparingly soluble electrolyte under corresponding conditions, and calculate the ion product of the sparingly soluble electrolyte using the solubility. When it is judged that the solubility product constant of the sparingly soluble electrolyte is greater than the corresponding ion product, dissolution will occur, and further admixture calculation is performed, including: according to the test results of the fourth test device, the sixth test device and the seventh test device, calculating the admixture that inhibits the generation of the ion components of the sparingly soluble electrolyte based on the salt effect and the common ion effect, and has an influence range condition on the mineral components of the rock and the main filling material;

[0097] A filling material production device produces filling materials according to the admixture calculation results;

[0098] The filling device is used to fill the filling material into the dissolution holes.

[0099] Specifically, in this exemplary embodiment, the fourth test device and the fifth test device are first used to obtain the ionic components of the sparingly soluble electrolyte in the gypsum salt crystals, and the solubility of the ionic components corresponding to the sparingly soluble electrolyte in the groundwater at the sedimentary rock formation location is obtained; then the admixture judgment and calculation device uses the test results of the fourth test device to calculate the solubility product constant of the sparingly soluble electrolyte under the corresponding conditions, and uses the test solubility of the fifth test device to calculate the ionic product of the sparingly soluble electrolyte. When it is judged that the solubility product constant is greater than the ionic product, dissolution will occur, and further admixture calculation is performed: at this time, according to the test results of the fourth test device, the sixth test device and the seventh test device, the admixture that inhibits the generation of the ionic components of the sparingly soluble electrolyte and has an influence range on the mineral components of the rock and the main filling material is calculated; finally, the filling material production device produces the filling material according to the admixture calculation results, and the filling device fills the filling material into the dissolution holes (the filling method can be selected according to the actual situation and is not limited here).

[0100] More preferably, in an exemplary embodiment, the gypsum salt crystals include sulfate rock crystals and carbonate rock crystals, the sulfate rock crystals include gypsum, calcium glauberite and sodium sulfate, and the carbonate rock crystals include limestone, dolomite, marl and the like.

[0101] More preferably, in an exemplary embodiment, when it is determined that the solubility product constant is less than or equal to the ion product, no additive calculation is performed.

[0102] Obviously, the above embodiments are merely examples for clear explanation, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from them are still within the protection scope of the invention.

Claims

1. A method for treating crystal dissolution holes in sedimentary rock formations, characterized by: The following steps are involved: Obtaining the mineral composition of gypsum salt crystals in sedimentary rock formations, thereby obtaining the ion composition of sparingly soluble electrolytes in the gypsum salt crystals; Obtain the mineral composition of the rock in the occurrence environment of the gypsum salt crystals, and obtain the mineral composition of the main filling material for filling the dissolution holes; Calculate the additive that inhibits the generation of the ionic components of the sparingly soluble electrolyte and is within the influence range of the mineral components of the rock and the main filling material; for the sparingly soluble electrolyte of the gypsum salt crystal, A n B m In the form of, then add to generate A m+ and B n- Additives of substances are used to inhibit the generation of ionic components of sparingly soluble electrolytes; at the same time, the admixtures take into account the corrosive effects on rocks and filling materials.

2. The method for treating crystal dissolution holes in a sedimentary rock stratum according to claim 1, characterized in that: The gypsum salt crystals include sulfate rock crystals and carbonate rock crystals. The sulfate rock crystals include gypsum, calcium glauberite and sodium sulfate. The carbonate rock crystals include limestone, dolomite and marl.

3. A system for treating crystal dissolution holes in sedimentary rock formations, comprising: The first testing device is used to test the mineral composition of gypsum salt crystals in sedimentary rock formations, so as to obtain the ion composition of the sparingly soluble electrolyte in the gypsum salt crystals; The second testing device is used to test the mineral composition of rocks in the occurrence environment of gypsum salt crystals; The third testing device is used to test the mineral composition of the main filling material for filling the dissolution holes; The admixture calculation device is used to calculate the admixture that inhibits the generation of the ion components of the sparingly soluble electrolyte and has an influence range on the mineral components of the rock and the main filling material according to the test results of the first test device, the second test device and the third test device; the sparingly soluble electrolyte of the gypsum salt crystal is A n B m In the form of, then add to generate A m+ and B n- Additives of substances are used to inhibit the generation of ion components of sparingly soluble electrolytes; at the same time, the additives take into account the corrosive effects on rocks and filling materials; A filling material production device is used to mix the main filling material and the admixture to obtain the filling material for the dissolution holes; The filling device is used to fill the filling material into the dissolution holes.

4. The system for treating crystal dissolution holes in sedimentary rock formations according to claim 1, characterized in that: The gypsum salt crystals include sulfate rock crystals and carbonate rock crystals. The sulfate rock crystals include gypsum, calcium glauberite and sodium sulfate. The carbonate rock crystals include limestone, dolomite and marl.

5. A method for treating crystal dissolution holes in sedimentary rock formations, characterized in that: The following steps are involved: Obtain the mineral composition of gypsum salt crystals in sedimentary rock formations, thereby obtaining the ion composition of sparingly soluble electrolytes in the gypsum salt crystals, and calculating the solubility product constant of sparingly soluble electrolytes under corresponding conditions; Obtaining the solubility of the ion components corresponding to the sparingly soluble electrolyte in the groundwater containing the recharge water source at the sedimentary rock formation location, and calculating the ion product of the sparingly soluble electrolyte using the solubility; When it is determined that the solubility product constant of the insoluble electrolyte is greater than the corresponding ion product, dissolution will occur, and further admixture calculation is performed, including: obtaining the mineral composition of the rock in the occurrence environment of the gypsum salt crystals, and obtaining the mineral composition of the main filling material for filling the dissolution holes; Calculate the additive that inhibits the generation of the ion components of the sparingly soluble electrolyte based on the salt effect and the common ion effect, and has an influence on the mineral components of the rock and the main filling material; for the sparingly soluble electrolyte of the gypsum salt crystal, A n B m In the form of A, add m+ and B n- The admixture of substances makes the ion product of the sparingly soluble electrolyte in groundwater always greater than the solubility product constant; at the same time, the admixture takes into account the corrosive influence conditions on the rock and the main filling material.

6. The method for treating crystal dissolution holes in a sedimentary rock stratum according to claim 5, characterized in that: The gypsum salt crystals include sulfate rock crystals and carbonate rock crystals. The sulfate rock crystals include gypsum, calcium glauberite and sodium sulfate. The carbonate rock crystals include limestone, dolomite and marl.

7. The method for treating crystal dissolution holes in a sedimentary rock stratum according to claim 5, characterized in that: When the solubility product constant is judged to be less than or equal to the ion product, no admixture calculation is performed.

8. A system for treating crystal dissolution holes in sedimentary rock formations, characterized by: include: The fourth testing device is used to test the mineral composition of gypsum salt crystals in sedimentary rock formations, so as to obtain the ion composition of the sparingly soluble electrolyte in the gypsum salt crystals; A fifth testing device is used to obtain the solubility of ion components corresponding to sparingly soluble electrolytes in groundwater containing recharge water sources at the sedimentary rock formation location; The sixth testing device is used to test the mineral composition of rocks in the occurrence environment of gypsum salt crystals; The seventh testing device is used to test the mineral composition of the main filling material for filling the dissolution holes; The admixture judgment and calculation device is used to calculate the solubility product constant of the sparingly soluble electrolyte under corresponding conditions, and calculate the ion product of the sparingly soluble electrolyte using the solubility. When it is judged that the solubility product constant is greater than the ion product, dissolution will occur, and further admixture calculation is performed, including: according to the test results of the fourth test device, the sixth test device and the seventh test device, calculating the admixture that inhibits the generation of the ion components of the sparingly soluble electrolyte based on the salt effect and the common ion effect, and the mineral components of the rock and the filling main material are within the influence range conditions; for the sparingly soluble electrolyte of the gypsum salt crystal, it is A n B m In the form of A, add m + and B n- The additive of the substance makes the ion product of the sparingly soluble electrolyte in the groundwater always greater than the solubility product constant; at the same time, the additive takes into account the corrosive influence conditions on the rock and the main filling material; A filling material production device produces filling materials according to the admixture calculation results; The filling device is used to fill the filling material into the dissolution holes.

9. A system for treating crystal dissolution holes in sedimentary rock formations according to claim 8, characterized in that: The gypsum salt crystals include sulfate rock crystals and carbonate rock crystals. The sulfate rock crystals include gypsum, calcium glauberite and sodium sulfate. The carbonate rock crystals include limestone, dolomite and marl.

10. A system for treating crystal dissolution holes in sedimentary rock formations according to claim 8, characterized in that: When the solubility product constant is judged to be less than or equal to the ion product, no admixture calculation is performed.

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