Drilling rock debris curing agent for road building as well as preparation method and use method of drilling rock debris curing agent

Abstract

The invention discloses a well drilling rock debris curing agent for road building and a preparation method and a using method thereof.The well drilling rock debris curing agent for road building is prepared from, by mass, 45-55% of cement, 10-20% of granulated blast furnace slag powder, 15-25% of fly ash, 5-10% of lime, 1-2% of anhydrous aluminum potassium sulfate and 1-10% of sodium silicate. The preparation method comprises: 1, taking raw materials according to mass percentage; and 2, mixing the raw materials in the step 1, uniformly stirring, grinding to 80 mu m, sieving, and uniformly stirring after the sieve residue is less than 10% to obtain the drilling rock debris curing agent for road building. The method comprises the following steps: carrying out a compaction test by using dry-based drilling cuttings and a curing agent accounting for 10% of the mass of the dry-based drilling cuttings, forming an unconfined test piece, carrying out an unconfined compressive strength test for 7 days, and paving a roadbed according to a test result. The consolidation strength meets the requirement of the strength grade 2.0 in the CJJ / T286-2018 Soil Solidifier Application Technical Standard, and can be used for roadbed pavement to reduce the stacking of the roadbed.

Description

Technical Field

[0001] This invention relates to road engineering materials, specifically to a drilling cuttings curing agent for road construction. The invention also relates to the preparation and application methods of this drilling cuttings curing agent. Background Technology

[0002] Oil and gas drilling and extraction processes often generate large amounts of waste drilling cuttings. While these cuttings, classified as hazardous waste, can meet emission standards after environmental treatment, their usage as raw materials for brick making or non-fired bricks is relatively small, with the remainder requiring extensive site storage. Using these drilling cuttings for roadbed construction would effectively reduce their accumulation. However, water-based drilling cuttings, after proper treatment, are essentially lumps obtained through pressure filtration. These lumps contain certain chemical components and have a high water absorption rate, making them difficult to solidify with ordinary cement or lime. Summary of the Invention

[0003] The purpose of this invention is to provide a drilling cuttings curing agent for road construction. This curing agent can effectively cure drilling cuttings, and the curing strength meets the requirements of strength grade 2.0 in CJJ / T286-2018 "Technical Standard for Application of Soil Curing Agents".

[0004] Another object of the present invention is to provide a method for preparing and using the curing agent.

[0005] The technical solution adopted in this invention is a drilling cuttings curing agent for road construction, which is composed of the following raw materials in the following mass percentages: 45-55% cement, 10-20% granulated blast furnace slag powder, 15-25% fly ash, 5-10% lime, 1-2% anhydrous potassium aluminum sulfate, and 1-10% sodium silicate, with the sum of the mass percentages of the above raw materials being 100%.

[0006] The invention is further characterized by:

[0007] Cement is one of silicate cement and ordinary silicate cement, or a mixture of both in any proportion.

[0008] Silicate cement uses commercially available products with strength grade PI or PII 42.5, while ordinary silicate cement uses commercially available products with strength grade PO 52.5 or PO 52.5R.

[0009] Granulated blast furnace slag powder uses commercially available products of grade S95 or higher.

[0010] The fly ash used must be commercially available at grade II or above.

[0011] The lime used is calcareous quicklime powder with a moisture content of less than 1% after drying and free of undigested residue, and its effective calcium oxide and magnesium oxide content is greater than 80%.

[0012] The sodium silicate used is fast-dissolving powdered sodium silicate with a modulus of 2.5-3.0, preferably 2.8.

[0013] Another technical solution adopted in this invention is a method for preparing the above-mentioned drilling cuttings solidifying agent for road construction, comprising the following steps:

[0014] Step 1: Take the following by weight percentage: 45-55% cement, 10-20% granulated blast furnace slag powder, 15-25% fly ash, 5-10% lime, 1-2% anhydrous potassium aluminum sulfate, and 1-10% quick-dissolving powdered sodium silicate.

[0015] Step 2: Mix all the raw materials from Step 1, stir evenly, grind and then pass through an 80μm sieve. After the residue on the sieve is less than 10%, stir the fine powder that has been sieved evenly to obtain the drilling cuttings solidifying agent for road construction.

[0016] The technical solution adopted in this invention also includes a method for using the above-mentioned drilling cuttings solidifying agent for road construction, comprising the following steps:

[0017] Step 1: After drying the water-based drilling cuttings, crush them to a particle size of no more than 3mm to obtain dry-based drilling cuttings. In the laboratory, according to CJJ / T 286-2018 "Technical Standard for Application of Soil Stabilizers", the dosage of dry-based drilling cuttings and drilling cuttings stabilizer is tested. The optimal moisture content and maximum dry density of each mix ratio in the test mix are determined by compaction test. According to JTGE51 "Test Procedure for Inorganic Binder Stabilized Materials in Highway Engineering", unconfined specimens are formed at 95% compaction degree and unconfined compressive strength test is conducted. The minimum drilling cuttings stabilizer dosage mix ratio that meets the unconfined compressive strength requirements of Class B soil stabilizers prepared by CJJ / T 286-2018 "Technical Standard for Application of Soil Stabilizers" is selected.

[0018] Step 2: Based on the volume of the road section to be paved, the loose paving coefficient, the compaction degree, and the mix proportion selected in Step 1, as well as the optimum moisture content and maximum dry density under that mix proportion, calculate the required mass of dry-base water-based drilling cuttings and drilling cuttings curing agent for the road section to be paved. According to the calculation results, take the dried water-based drilling cuttings, crush them, and spread them evenly on the roadbed. Calculate the amount of water to be sprinkled according to the optimum moisture content, and reserve 1-2% of the water from the amount of water to be sprinkled. Spray the remaining water evenly onto the water-based drilling cuttings, mix them evenly, and let them sit for 24 hours.

[0019] Step 3: Based on the mass of drilling cuttings solidifier calculated in Step 2, take the drilling cuttings solidifier and spread it evenly on the water-based drilling cuttings treated in Step 2, and mix it evenly.

[0020] Step 4: Calculate the amount of water-reducing agent to be added based on the quality of the curing agent in Step 2, add it to the water reserved in Step 2, stir evenly to form a water-reducing agent solution, and evenly sprinkle the water-reducing agent solution onto the water-based drilling cuttings treated in Step 3. After mixing evenly, compact it to the compaction degree in Step 2, and allow it to cure with water for at least 7 days.

[0021] The beneficial effects of this invention are:

[0022] 1. The curing agent of this invention is composed of inorganic materials and is used in the same way as traditional inorganic binder stabilizing materials such as cement and lime. It solves the technical problem that cement and lime are difficult to solidify water-based drilling cuttings that have been environmentally treated and can be discharged. The environmentally treated water-based drilling cuttings are crushed into particles with a diameter of no more than 3 mm and 10% of the curing agent of this invention is added. Under the optimal moisture content and maximum dry density, and at 95% compaction, its 7-day unconfined compressive strength meets the requirements of strength grade 2.0 in CJJ / T286-2018 "Technical Standard for Application of Soil Stabilizer".

[0023] 2. The curing agent of the present invention is used for roadbed paving. It combines the existing water-based drilling cuttings generated during oil and gas field drilling and extraction, which can meet the emission standards after environmental protection treatment, with the curing agent of the present invention for roadbed construction. This can greatly increase the amount of existing water-based drilling cuttings used and solve the problem of large-scale stockpiling. Detailed Implementation

[0024] The present invention will now be described in detail with reference to specific embodiments.

[0025] The raw material composition and mass ratio of the drilling cuttings solidifying agent for road construction of this invention are shown in Table 1 below:

[0026] Table 1. Raw materials and mass ratio of drilling cuttings solidification agent for road construction.

[0027] raw material Quality fraction (%) cement 45-55 Granulated blast furnace slag powder 10-20 fly ash 15-25 lime 5-10 Anhydrous potassium aluminum sulfate 1-2 Instantly dissolving powdered sodium silicate 1-10

[0028] Preferably, the cement used is commercially available silicate cement with strength grade PI or PII 42.5, commercially available ordinary silicate cement with strength grade PO 52.5 or PO 52.5R, or a mixture of the two types of cement in any proportion;

[0029] Preferably, the granulated blast furnace slag powder is a commercially available product that meets or exceeds grade S95 of GB / T18046-2017 "Granulated Blast Furnace Slag Powder for Cement, Mortar and Concrete";

[0030] Preferably, the fly ash is a commercially available product that conforms to Grade II or above of GB / T1596-2017 "Fly Ash for Cement and Concrete";

[0031] Preferably, the lime is calcareous quicklime powder with a moisture content of less than 1% after drying and free of undigested residue, and its effective calcium oxide and magnesium oxide content is greater than 80%.

[0032] Preferably, the instant powdered sodium silicate is a commercially available product with a modulus of 2.5-3.0, and more preferably a modulus of 2.8.

[0033] This invention also provides a method for preparing a drilling cuttings solidifying agent for road construction, specifically implemented according to the following steps:

[0034] Step 1: Take the following raw materials by mass percentage: 45-55% cement, 10-20% granulated blast furnace slag powder, 15-25% fly ash, 5-10% lime, 1-2% anhydrous potassium aluminum sulfate, and 1-10% quick-dissolving powdered sodium silicate. The sum of the mass percentages of the above raw materials is 100%.

[0035] Step 2: Mix and stir all the raw materials from Step 1 evenly, then grind them and pass them through an 80μm sieve. After the residue on the sieve is less than 10%, stir the fine powder that has been sieved evenly to obtain the drilling cuttings solidifying agent for road construction.

[0036] Example 1

[0037] A method for preparing a drilling cuttings solidifying agent for road construction includes the following steps:

[0038] Step 1: According to the raw material composition and its mass ratio, take 50% of PI 42.5 silicate cement, 15% of S95 grade granulated blast furnace slag powder, 23% of secondary fly ash, 7% of calcareous lime powder after removing undigested residue, 1% of anhydrous potassium aluminum sulfate, and 4% of 3.0 modulus quick-dissolving powdered sodium silicate.

[0039] Step 2: After drying the raw material from Step 1 to a moisture content of less than 1%, put it into a mixing tank and stir. After stirring evenly, grind it and pass it through an 80μm sieve. After the residue on the sieve is less than 10%, put the fine powder from the sieve into a mixing device and mix it evenly to obtain the drilling cuttings solidifying agent.

[0040] Example 2

[0041] A method for preparing a drilling cuttings solidifying agent for road construction includes the following steps:

[0042] Step 1: According to the raw material composition and its mass ratio, take 55% of PO 52.5 ordinary Portland cement, 15% of S105 grade granulated blast furnace slag powder, 16% of grade 1 fly ash, 8% of calcareous lime powder after removing undigested residue, 1% of anhydrous potassium aluminum sulfate, and 5% of 2.5 modulus quick-dissolving powdered sodium silicate.

[0043] Step 2: After drying the raw material from Step 1 to a moisture content of less than 1%, put it into a mixing tank and stir. After stirring evenly, grind it and pass it through an 80μm sieve. After the residue on the sieve is less than 10%, put the fine powder from the sieve into a mixing device and mix it evenly to obtain the drilling cuttings solidifying agent.

[0044] Example 3

[0045] A method for preparing a drilling cuttings solidifying agent for road construction includes the following steps:

[0046] Step 1: According to the raw material composition and its mass ratio, take 52% of PO 52.5 ordinary Portland cement and PII42.5 Portland cement mixed in a 1:1 ratio, 15% of S95 grade granulated blast furnace slag powder, 20% of secondary fly ash, 5% of calcareous lime powder after removing undigested residues, 1% of anhydrous potassium aluminum sulfate, and 7% of 2.8 modulus quick-dissolving powdered sodium silicate.

[0047] Step 2: After drying the raw material from Step 1 to a moisture content of less than 1%, put it into a mixing tank and stir. After stirring evenly, grind it and pass it through an 80μm sieve. After the residue on the sieve is less than 10%, put the fine powder from the sieve into a mixing device and mix it evenly to obtain the drilling cuttings solidifying agent.

[0048] The drilling cuttings were cured in an indoor environment using the cuttings curing agent prepared in steps 1-3, and then subjected to strength testing. The specific steps included:

[0049] According to CJJ / T 286-2018 "Technical Standard for Application of Soil Stabilizer", water-based drilling cuttings are dried and crushed to a particle size of no more than 3mm to obtain dry-based drilling cuttings. The dry-based drilling cuttings are divided into 3 equal groups, and each group is further divided into 5 equal parts. Water is added to each of the 5 parts of the group at 18%, 19%, 20%, 21%, and 22% of the mass of each part of dry-based drilling cuttings, respectively, and left to soak for 24 hours. 1% of the water is reserved for each part during the soaking process.

[0050] After the cuttings are cured, add an equal amount of the drilling cuttings curing agent prepared in Example 1 to Group 1, with each addition amount being 10% of the dry-basis drilling cuttings mass. Add the drilling cuttings curing agent prepared in Example 2 to Group 2, with each addition amount being 10% of the dry-basis drilling cuttings mass, and so on. Then, add a high-performance polycarboxylate superplasticizer with a water reduction rate of not less than 25% to each reserved 1% water and stir evenly. The amount of superplasticizer added is calculated based on the amount of drilling cuttings curing agent added according to the recommended dosage by the superplasticizer manufacturer. After stirring evenly, a compaction test is conducted to obtain the optimal moisture content and maximum dry density at a 10% dosage of drilling cuttings curing agent.

[0051] The drilling cuttings solidifying agents prepared in steps 1-3, at a 10% dosage, yielded optimal moisture contents of 20.2%, 19.6%, and 20.0% respectively in compaction tests, with maximum dry densities of 1.87 g / cm³.3 1.91g / cm 3 1.90g / cm 3 Therefore, the optimal moisture content of 20% and the maximum dry density of 1.90 g / cm³ are selected. 3 .

[0052] According to the optimal moisture content and maximum dry density of the drilling cuttings curing agents prepared in Examples 1-3, the dosage of dry-based and water-based drilling cuttings, drilling cuttings curing agents, water, and water-reducing agents was calculated with a compaction degree of 95%. Specimens were prepared, molded, and cured according to JTG E51 "Test Procedure for Inorganic Binder Stabilized Materials in Highway Engineering". Unconfined compressive strength specimens were prepared with a compaction degree of 95%. After demolding, standard curing was performed for 6 days, followed by immersion in water on the 7th day. The unconfined compressive strength after immersion in water on the 7th day was tested. The representative values ​​of the three drilling cuttings curing agents in Examples 1-3 of this invention are shown in Table 2 below.

[0053] Table 2: Representative values ​​of 95% compaction strength and 7-day unconfined strength of products with 10% external curing agent.

[0054]

[0055] As shown in Table 2, the drilling cuttings solidified by the drilling cuttings solidifier prepared in this invention solidified water-based drilling cuttings, and the 7-day unconfined strength all met the requirements of Class B soil solidifier strength grade 2.0 in CJJ / T286-2018 "Technical Standard for Application of Soil Solidifiers".

[0056] Example 4

[0057] A method for preparing a drilling cuttings solidifying agent for road construction includes the following steps:

[0058] Step 1: According to the raw material composition and its mass ratio, take 45% of PO 52.5R ordinary Portland cement, 18% of S95 grade granulated blast furnace slag powder, 15% of secondary fly ash, 10% of calcareous lime powder after removing undigested residue, 2% of anhydrous potassium aluminum sulfate, and 10% of 2.5 modulus quick-dissolving powdered sodium silicate.

[0059] Step 2: After drying the raw material from Step 1 to a moisture content of less than 1%, put it into a mixing tank and stir. After stirring evenly, grind it and pass it through an 80μm sieve. After the residue on the sieve is less than 10%, put the fine powder from the sieve into a mixing device and mix it evenly to obtain the drilling cuttings solidifying agent.

[0060] Example 5

[0061] A method for preparing a drilling cuttings solidifying agent for road construction includes the following steps:

[0062] Step 1: According to the raw material composition and its mass ratio, take 46% of PO 52.5R ordinary Portland cement and PI42.5 Portland cement mixed in a 2:8 ratio, 20% of S105 grade granulated blast furnace slag powder, 25% of secondary fly ash, 6.5% of calcareous lime powder after removing undigested residues, 1.5% of anhydrous potassium aluminum sulfate, and 1% of 2.8 modulus quick-dissolving powdered sodium silicate.

[0063] Step 2: After drying the raw material from Step 1 to a moisture content of less than 1%, put it into a mixing tank and stir. After stirring evenly, grind it and pass it through an 80μm sieve. After the residue on the sieve is less than 10%, put the fine powder from the sieve into a mixing device and mix it evenly to obtain the drilling cuttings solidifying agent.

[0064] Example 6

[0065] A method for preparing a drilling cuttings solidifying agent for road construction includes the following steps:

[0066] Step 1: According to the raw material composition and its mass ratio, take 53% of PO 52.5 ordinary Portland cement and PII42.5 Portland cement mixed in a 7:3 ratio, 10% of S95 grade granulated blast furnace slag powder, 20% of grade 1 fly ash, 9% of calcareous lime powder after removing undigested residues, 2% of anhydrous potassium aluminum sulfate, and 6% of 3.0 modulus quick-dissolving powdered sodium silicate.

[0067] Step 2: After drying the raw material from Step 1 to a moisture content of less than 1%, put it into a mixing tank and stir. After stirring evenly, grind it and pass it through an 80μm sieve. After the residue on the sieve is less than 10%, put the fine powder from the sieve into a mixing device and mix it evenly to obtain the drilling cuttings solidifying agent.

[0068] The present invention also provides a method for using the above-mentioned drilling cuttings solidification agent, comprising the following steps:

[0069] Step 1: After drying the water-based drilling cuttings, crush them to a particle size of no more than 3mm to obtain dry-based drilling cuttings. In the laboratory, according to CJJ / T 286-2018 "Technical Standard for Application of Soil Stabilizers", the dosage of dry-based drilling cuttings and drilling cuttings stabilizer is tested. The optimal moisture content and maximum dry density of each mix ratio in the test mix are determined by compaction test. According to JTGE51 "Test Procedure for Inorganic Binder Stabilized Materials in Highway Engineering", unconfined specimens are formed at 95% compaction degree and unconfined compressive strength test is conducted. The minimum drilling cuttings stabilizer dosage mix ratio that meets the unconfined compressive strength requirements of Class B soil stabilizers prepared by CJJ / T 286-2018 "Technical Standard for Application of Soil Stabilizers" is selected.

[0070] Step 2: Based on the volume of the road section to be paved, the loose paving coefficient, the 95% compaction degree, and the mix proportion selected in Step 1, as well as the optimum moisture content and maximum dry density under this mix proportion, calculate the required mass of dry-base water-based drilling cuttings and drilling cuttings curing agent for the road section to be paved. According to the calculation results, take the dried water-based drilling cuttings, crush them, and spread them evenly on the roadbed. Calculate the amount of water to be sprinkled according to the optimum moisture content, and reserve 1-2% of the water from the amount of water to be sprinkled. Spray the remaining water evenly onto the water-based drilling cuttings, mix them evenly, and let them sit for 24 hours.

[0071] Step 3: Based on the mass of drilling cuttings solidifier calculated in Step 2, take the drilling cuttings solidifier and spread it evenly on the water-based drilling cuttings treated in Step 2, and mix it evenly.

[0072] Step 4: Calculate the amount of water-reducing agent to be added based on the quality of the curing agent in Step 2. Add the water to the water reserved in Step 2 and stir evenly to form a water-reducing agent solution. Sprinkle the water-reducing agent solution evenly onto the water-based drilling cuttings treated in Step 3. After mixing evenly, compact it to a compaction degree of 95% and allow it to cure with water for at least 7 days.

[0073] Three samples were taken from the paved roadbed and molded. The 7-day unconfined compressive strength was tested according to JTG E51 "Test Procedure for Inorganic Binder Stabilized Materials in Highway Engineering", yielding values ​​of 0.72 MPa, 0.81 MPa, and 0.7 MPa, respectively. The results indicate that the 7-day unconfined compressive strength of water-based drilling cuttings cured with the drilling cuttings solidifier prepared using this invention meets the medium strength grade 2.0 requirement for Class B soil solidifiers in CJJ / T 286-2018 "Technical Standard for Application of Soil Stabilizers".

[0074] This invention involves drying environmentally treated water-based drilling cuttings, crushing them to a particle size of no more than 3 mm, soaking them in water, and then adding a road construction drilling cuttings curing agent prepared according to this invention. Cement, granulated blast furnace slag powder, and fly ash are used as curing agents, lime and potassium aluminum sulfate as activators, and readily soluble powdered sodium silicate as a dispersing binder. Lime and potassium aluminum sulfate dissolve in the water-based drilling cuttings containing moisture, forming an alkaline solution that promotes the activation of the pozzolanic reaction of granulated blast furnace slag powder and fly ash, as well as the cement hydration reaction, producing hydrated calcium silicate and hydrated calcium aluminate crystals. The readily soluble powdered sodium silicate, as a dispersing binder, further disperses the curing agent hydrate and bonds it to the drilling cuttings. The 7-day unconfined strength of the cured water-based drilling cuttings meets the requirements of CJJ / T. The medium strength grade of 2.0 required for Class B soil stabilizers in the 286-2018 "Technical Standard for Application of Soil Stabilizers" allows them to be used as roadbeds in oil and gas fields. Since the roadbed is covered by a pavement layer, it is less likely to be directly washed by rainwater. Therefore, using solidified water-based drilling cuttings as the subbase of road pavements is a method of reducing the volume and harmlessly treating water-based drilling cuttings.

Claims

1. A drilling cuttings curing agent for road construction, characterized in that, It is composed of the following raw materials in the following mass percentages: cement 45-55%, granulated blast furnace slag powder 10-20%, fly ash 15-25%, lime 5-10%, anhydrous potassium aluminum sulfate 1-2%, sodium silicate 1-10%, and the sum of the mass percentages of the above raw materials is 100%.

2. The drilling cuttings curing agent for road construction according to claim 1, characterized in that, The cement is one of silicate cement and ordinary silicate cement, or a mixture of both in any proportion.

3. The drilling cuttings curing agent for road construction according to claim 2, characterized in that, The silicate cement used is a commercially available product with strength grade PI or PII 42.5, and the ordinary silicate cement used is a commercially available product with strength grade PO 52.5 or PO 52.5R.

4. The drilling cuttings curing agent for road construction according to claim 1, characterized in that, The granulated blast furnace slag powder used is a commercially available product of grade S95 or higher.

5. The drilling cuttings curing agent for road construction according to claim 1, characterized in that, The fly ash used is a commercially available product of grade II or above.

6. The drilling cuttings curing agent for road construction according to claim 1, characterized in that, The lime used is calcareous quicklime powder with a moisture content of less than 1% after drying and no undigested residue, and its effective calcium oxide and magnesium oxide content is greater than 80%.

7. The drilling cuttings curing agent for road construction according to claim 1, characterized in that, The sodium silicate used is fast-dissolving powdered sodium silicate with a modulus of 2.5-3.

0.

8. The drilling cuttings curing agent for road construction according to claim 7, characterized in that, The modulus of the instant powdered sodium silicate is 2.

8.

9. The method for preparing the drilling cuttings solidifying agent for road construction according to any one of claims 1-8, characterized in that, Includes the following steps: Step 1: Take the following by weight percentage: 45-55% cement, 10-20% granulated blast furnace slag powder, 15-25% fly ash, 5-10% lime, 1-2% anhydrous potassium aluminum sulfate, and 1-10% quick-dissolving powdered sodium silicate. Step 2: Mix all the raw materials from Step 1, stir evenly, grind and then pass through an 80μm sieve. After the residue on the sieve is less than 10%, stir the fine powder that has been sieved evenly to obtain the drilling cuttings solidifying agent for road construction.

10. The method of using the drilling cuttings curing agent for road construction according to any one of claims 1-8, characterized in that, Includes the following steps: Step 1: Indoors, according to CJJ / T 286-2018 "Technical Standard for Application of Soil Stabilizers", water-based drilling cuttings are dried and crushed to a particle size of no more than 3mm to obtain dry-based drilling cuttings. The dosage of dry-based drilling cuttings and drilling cuttings stabilizer is tested. The optimal moisture content and maximum dry density of each mix ratio in the test scheme are determined by compaction test. According to JTG E51 "Test Procedure for Inorganic Binder Stabilized Materials in Highway Engineering", unconfined specimens are formed at 95% compaction degree and unconfined compressive strength test is conducted. The minimum drilling cuttings stabilizer dosage mix ratio that meets the unconfined compressive strength requirements of Class B soil stabilizers prepared by CJJ / T 286-2018 "Technical Standard for Application of Soil Stabilizers" is selected. Step 2: Based on the volume of the road section to be paved, the loose paving coefficient, the 95% compaction degree, and the mix proportion selected in Step 1, as well as the optimum moisture content and maximum dry density under this mix proportion, calculate the required mass of dry-base water-based drilling cuttings and drilling cuttings curing agent for the road section to be paved. According to the calculation results, take the dried water-based drilling cuttings, crush them, and spread them evenly on the roadbed. Calculate the amount of water to be sprinkled according to the optimum moisture content, and reserve 1-2% of the water from the amount of water to be sprinkled. Spray the remaining water evenly onto the water-based drilling cuttings, mix them evenly, and let them sit for 24 hours. Step 3: Based on the mass of drilling cuttings solidifier calculated in Step 2, take the drilling cuttings solidifier and spread it evenly on the water-based drilling cuttings treated in Step 2, and mix it evenly. Step 4: Calculate the amount of water-reducing agent to be added based on the quality of the curing agent in Step 2, add it to the water reserved in Step 2, stir evenly to form a water-reducing agent solution, and evenly sprinkle the water-reducing agent solution onto the water-based drilling cuttings treated in Step 3. After mixing evenly, compact it to a compaction degree of 95%, and allow it to cure with water for at least 7 days.

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