A cement slurry floor construction process and device suitable for non-water-soluble resin

Abstract

The present invention relates to a cement slurry ground construction process and device suitable for non-water-soluble resin. The process comprises the following steps: S1, preparing slurry water: adding an emulsifier to clean water, or adding an emulsifier and a water-soluble additive to clean water, stirring evenly to obtain slurry water, and setting aside; S2, preparing a resin mixture: adding a curing agent to the resin, stirring evenly, and setting aside; S3, preparing base slurry: continuously supplying cement ash and slurry water to a slurry cement truck according to a formula ratio to prepare cement slurry; S4, continuously preparing resin cement slurry: continuously adding the resin mixture prepared in step S2 to the cement slurry prepared in step S3 according to a formula ratio, continuously stirring to form resin cement slurry; S5, continuously pumping the resin cement slurry into a well. Compared with traditional construction processes, the process of this scheme can continuously prepare resin cement slurry from solid cement, slurry water and non-water-soluble resin, and pump it into the well at a large displacement and constant speed.

Description

Technical Field

[0001] The present invention relates to the technical field of oil and gas well cementing, and in particular to a cement slurry ground construction process and device suitable for non-water-soluble resin. Background Art

[0002] Cementing an oil and gas well is the process of injecting cement slurry into the annulus to achieve interlayer separation, support, and protect the casing. Cementing operations require cement slurry volumes ranging from tens to hundreds of cubic meters. This slurry is typically continuously prepared by a cement pump truck and pumped into the well at a constant rate of 0.5 to 1.5 cubic meters per minute. Alternatively, depending on project requirements, several cement pump trucks may be connected in parallel to deliver a higher volume. The volume is typically fixed according to project design to facilitate calculation and control of safe cement slurry pumping time.

[0003] Cement slurry typically consists of two components: slurry water and dry ash. The slurry water, the liquid phase, is usually water or a mixture mixed with water-soluble additives. It is stored in a water tank and connected to a cement pump truck via a water pump and hose lines. The dry ash, the solid phase, is usually cement or a mixture mixed with solid additives beforehand. It is stored in a special ash storage tank and connected to the cement pump truck via compressed air and hose lines for pneumatic conveying.

[0004] Cement pump trucks are typically used to prepare and pump cement slurry. The preparation principle: Dry ash from the ash storage tank is connected to the ash lowering valve via a pipeline. The dry ash flow is mixed with the high-speed water jet from the high-energy mixer to form cement slurry. The mixed cement slurry is further mixed by agitation blades in the slurry tank (blending tank). The cement slurry then passes through a plunger pump to increase pressure before being pumped into the well. The density of the cement slurry and the preparation speed (displacement) are adjusted by adjusting the water and ash flows. Computer control is now available, while manual adjustment is also retained. Existing cement pump trucks are designed based on a two-phase material composition.

[0005] The non-water-soluble resin cement slurry system consists of three components: mixing water, dry ash, and non-water-soluble resin. Compared to traditional cement slurries, it offers advantages such as lowering the elastic modulus of cement paste, increasing bond strength, and reducing permeability. The non-water-soluble resin is a liquid with a density of 1.10-1.15 g / cm³. It is insoluble in water and cannot be added directly to cement slurry. It is generally added after emulsification to improve the properties of both the slurry and the cement paste after solidification.

[0006] However, in engineering applications, the effect of emulsifying non-water-soluble resin in high-solid cement slurry is different from that of emulsifying non-water-soluble resin directly in water. When emulsifying in cement slurry, the amount of emulsifier added is generally not large. However, when the same amount of emulsifier is used to emulsify the resin in a water tank on site, the emulsion system will become unstable and the non-water-soluble resin will stratify (refer to Figure 5Within 1 cm of the bottom of the beaker, there are small transparent spheres. These are resin that has settled due to the instability of the emulsion system. Even with stirring, the water tank still has dead corners or areas of insufficient stirring, which will cause the spheres to accumulate at the bottom. The suction pump (centrifugal pump or submersible pump) is always close to the bottom. As a result, the liquid phase becomes uneven during construction, and the cement slurry properties vary, affecting construction safety and cementing quality. Furthermore, the construction equipment, cement trucks, and the construction processes formed by these equipment are based on stable two-phase materials (hydrophilic liquid phase and solid phase). There are no cementing construction processes that use three-phase materials (hydrophilic liquid phase, non-hydrophilic liquid phase, solid phase), especially in terms of continuous preparation, high-displacement pumping into the well, and ensuring construction continuity.

[0007] Therefore, in response to the problems existing in the existing technology, a cement slurry floor construction process and device suitable for non-water-soluble resin is proposed, which can realize the continuous preparation and uninterrupted construction of resin cement slurry composed of three-phase materials (hydrophilic liquid phase, non-hydrophilic liquid phase, dry ash solid phase). Summary of the Invention

[0008] The purpose of the present invention is to overcome the shortcomings of the existing technology and provide a cement slurry ground construction process and device suitable for non-water-soluble resin. The process can continuously prepare solid cement, slurry mixing water and non-water-soluble resin into resin cement slurry, and then pump it into the well with a large displacement constant speed pump.

[0009] The object of the present invention is achieved through the following technical solutions:

[0010] A cement slurry floor construction process suitable for non-water-soluble resin comprises the following steps:

[0011] S1. Prepare slurry water:

[0012] Add the emulsifier to clean water, or add the emulsifier and water-soluble additives to clean water, stir evenly to obtain slurry water, and set aside;

[0013] S2. Prepare resin mixture:

[0014] Add the curing agent to the resin and stir evenly, set aside;

[0015] S3. Prepare base slurry:

[0016] Continuously supply cement ash and slurry mixing water to the slurry mixing equipment according to the formula ratio to prepare cement slurry;

[0017] S4. Continuously prepare resin cement slurry:

[0018] The resin mixture prepared in step S2 is continuously added to the cement slurry prepared in step S3 according to the formula ratio, and stirred continuously to form a resin cement slurry;

[0019] S5. Continuously pumping resin cement slurry into the well:

[0020] The prepared resin cement slurry is continuously pumped along the pipeline into the well.

[0021] Optionally, the slurry mixing equipment may be a movable cement truck, an immovable cement skid (such as a cement skid used on an offshore platform), or other equipment.

[0022] Furthermore, in a preferred embodiment of the present invention, a cement slurry floor construction process suitable for using a non-water-soluble resin comprises the following steps:

[0023] S1. Prepare slurry water:

[0024] Add the emulsifier to clean water, or add the emulsifier and water-soluble additives to clean water, stir evenly to obtain slurry water, and set aside;

[0025] S2. Prepare resin mixture:

[0026] Add the curing agent to the resin and stir evenly, set aside;

[0027] S3. Prepare base slurry:

[0028] Continuously supply cement ash and slurry mixing water to the slurry mixing equipment according to the formula ratio to prepare cement slurry, and adjust the discharge volume in the slurry mixing equipment to balance the total feed amount and discharge volume of cement ash and slurry mixing water;

[0029] S4. Continuously prepare resin cement slurry:

[0030] The resin mixture prepared in step S2 is continuously added to the cement slurry prepared in step S3 according to the formula ratio, and stirred continuously to form a resin cement slurry. Then, the displacement of the slurry mixing equipment is slowly increased to make the total feed amount and displacement of cement ash, slurry mixing water, and resin mixture reach a balance again;

[0031] S5. Continuously pumping resin cement slurry into the well:

[0032] The prepared resin cement slurry is continuously pumped along the pipeline into the well.

[0033] During the specific operation process, due to the instability of the initial water supply efficiency and ash supply efficiency, the operator needs to adjust the feed amount of cement ash and slurry water at the beginning of step 2, and gradually make the base slurry (cement slurry) density and displacement meet the design requirements; the base slurry density here is higher than the final resin cement slurry density, and the displacement is less than the resin cement slurry into the well displacement, and its value is calculated based on the formula ratio.

[0034] In a preferred embodiment of this solution, the slurry preparation equipment is a slurry preparation cement truck, and the specific steps of preparing the base slurry in step S3 are:

[0035] Cement ash and slurry water are continuously supplied to the cement truck according to the formula ratio. The slurry is then mixed into cement slurry in the truck's high-energy mixer. The slurry enters the truck's mixing tank for mixing. The feed rates of cement ash and slurry water, as well as the truck's displacement, are adjusted to ensure that the base slurry density and displacement meet the design requirements. The total feed rate of cement ash and slurry water is balanced with the base slurry displacement, while the feed rate parameter remains unchanged. The base slurry density described here is calculated based on the final design density of the cement slurry.

[0036] In a preferred embodiment of this solution, the slurry preparation equipment is a slurry preparation cement truck, and the specific steps of continuously preparing the resin cement slurry in step S4 are as follows:

[0037] The resin mixture prepared in step S2 is continuously added to the slurry cement truck according to the formula ratio, and continuously stirred with the cement slurry in the mixing tank to form resin cement slurry. Then, the displacement of the slurry mixing equipment is slowly increased so that the total feed amount of cement ash, slurry mixing water, and resin mixture and the displacement of the resin cement slurry reach the designed density and displacement of the resin cement slurry and remain unchanged.

[0038] In a preferred embodiment of this solution, in step S3, the slurry water is pumped to the high-energy mixer on the slurry cement truck via a jet centrifugal pump to achieve mixing of cement ash and slurry water in the high-energy mixer;

[0039] In step S4, the resin mixture is added to the cement mixing truck at the pipeline between the jet centrifugal pump and the high-energy mixer; or

[0040] a blending tank; or

[0041] It is a secondary slurry mixing system loop with the blending tank as the starting and ending points.

[0042] Among them, the jet centrifugal pump is a boosting device that supplies pressurized slurry water to the high-energy mixer; the blending tank is an open container that receives and stirs the cement slurry prepared by the high-energy mixer; the secondary slurry mixing system loop provides enhanced mixing of cement slurry; the blending tank and secondary slurry mixing system are components of the cement truck itself.

[0043] In a preferred embodiment of this scheme, the slurry preparation equipment is a slurry preparation cement truck. In step S5, the resin cement slurry prepared by the slurry preparation cement truck is pressurized by the three-cylinder plunger pump of the truck and then continuously pumped into the well through an external hard pipe manifold (capable of withstanding high pressure).

[0044] In a preferred embodiment of the present scheme, the slurry preparation equipment is a slurry preparation cement truck. In step S5, the resin cement slurry prepared by the slurry preparation cement truck is further stirred by a batch mixing skid to eliminate density fluctuations and then pumped into the well by a booster pump; the booster pump is a three-cylinder plunger pump on the well-entering cement truck.

[0045] Since the resin cement slurry required for construction requires an additional amount of 5% to 10%, this additional amount is usually returned to the ground and discarded. Therefore, the initial configuration of the base slurry density does not affect the construction quality.

[0046] The batch mixer skid is a large-volume mixing and self-circulating device. The slurry mixing truck uses its triplex plunger pump to continuously transfer the prepared resin cement slurry to the batch mixer skid. After mixing and circulation, the slurry is continuously transferred to the wellbore cement truck. The wellbore cement truck uses its triplex plunger pump to boost pressure and continuously pumps the slurry into the well through an external hard manifold (capable of withstanding high pressures). The pipelines connecting the slurry mixing truck and the batch mixer skid, as well as the batch mixer skid and the wellbore cement workshop, can be rubber pipelines.

[0047] On the other hand, this solution also provides a ground construction device for the above-mentioned cement slurry ground construction process:

[0048] It includes an ash tank, a slurry cement truck, a resin supply system, and a well team water tank; the slurry cement truck includes a mixing tank and a water tank, and the water outlet of the water tank is connected to the mixing tank through a pipeline; the ash tank is connected to the ash inlet of the slurry cement truck to transport cement ash into the mixing tank; the well team water tank is connected to the water inlet of the water tank to transport slurry water into the mixing tank; the resin supply system is connected to the top inlet of the mixing tank through a resin supply pipeline to transport the resin mixture into the mixing tank.

[0049] In a preferred embodiment of the present scheme, the slurry cement truck further includes a high-energy mixer and a jet centrifugal pump; the ash inlet is connected to the high-energy mixer, the water in the water tank can be pressurized by the jet centrifugal pump and then pumped into the high-energy mixer, and the high-energy mixer is arranged above the blending tank so that the liquid in the high-energy mixer can enter the blending tank from its bottom outlet.

[0050] In a preferred embodiment of the present scheme, the resin supply system includes a container with a stirring function, which is connected to a slurry cement truck through a resin supply pipeline; a pump A, an adjustable gate 1, and a flow meter are sequentially provided on the resin supply pipeline; on the resin supply pipeline, one end of a return pipeline is also connected between the pump A and the adjustable gate 1, and the other end of the return pipeline is connected to the container.

[0051] In a preferred embodiment of this solution, the output end of the slurry cement truck is provided with a booster system, and the output port of the booster system is connected to the well manifold.

[0052] In a preferred embodiment of this scheme, the output end of the slurry cement truck is connected to the batch mixing skid, the discharge port of the batch mixing skid is connected to the downhole cement truck, the output end of the downhole cement truck has a boosting system, and the output port of the boosting system is connected to the downhole manifold.

[0053] In a preferred embodiment of the present scheme, the outlet of pump A is connected to the first end of a tee, the second end of the tee is connected to one end of a resin supply pipeline, and the third end of the tee is connected to one end of a return pipeline; the other end of the return pipeline is connected to a container, and the other end of the resin supply pipeline is connected to a slurry cement truck.

[0054] In a preferred embodiment of this solution, an adjustable gate 2 is installed on the return pipeline.

[0055] In a preferred embodiment of this solution, the resin supply system further comprises a pump B, the inlet of the pump B is connected to the storage tank, and the outlet of the pump B is connected to the container via a pipeline.

[0056] The beneficial effects of the present invention are:

[0057] (1) This solution adds an emulsifier to the slurry water to form a stable liquid phase, and continuously prepares the cement slurry (base slurry) with the solid dry ash according to the existing equipment and process. The slurry is pre-mixed in the mixing tank of the cement pump truck. The density and preparation speed of the base slurry are controlled by adjusting the flow rate of the slurry water and dry ash. At the same time, the cement slurry in the mixing tank is sucked by the plunger pump, so that the suction and preparation maintain a dynamic balance, thereby achieving continuous preparation of the resin cement slurry. The preparation speed of the continuous preparation is the pumping displacement of the cement pump truck.

[0058] (2) This scheme designs a set of resin fixed displacement supply system, which can calculate the displacement of corresponding resin according to the ratio of base slurry to resin and the base slurry preparation speed, and add resin to the prefabricated base slurry in the mixing tank through the pipeline, stir together and mix evenly; the cement pump truck gradually increases the suction displacement to the sum of the base slurry preparation displacement and the resin injection displacement; thus, it can achieve large displacement and uniform resin cement slurry preparation, and stabilize the continuous construction process;

[0059] (3) The existing construction technology and equipment principles are based on solid dry ash and slurry water as two-phase substances, and cannot realize the addition of non-aqueous solution phase substances. This solution solves the problem that the above three-phase substances cannot form a stable resin cement slurry, and at the same time solves the technical problem of continuous construction of large-volume resin cement slurry, providing possibilities for large-scale engineering applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Figure 1 This is a schematic diagram of construction site equipment according to an embodiment of the present invention;

[0061] Figure 2 Schematic diagram of the resin supply system of the present invention;

[0062] Figure 3 This is a schematic diagram of the ground equipment layout of a comparative solution of the present invention;

[0063] Figure 4This is a graph showing the thickening time of the resin cement slurry obtained in an embodiment of the present invention;

[0064] Figure 5 This is a diagram showing the effect of resin settling in slurry water containing emulsifier;

[0065] Figure 6 It is a schematic diagram of the blending tank of the present invention;

[0066] Figure 7 This is a schematic diagram of the construction well. DETAILED DESCRIPTION

[0067] The technical solution of the present invention is further described in detail below in conjunction with specific embodiments, but the protection scope of the present invention is not limited to the following.

[0068] Example

[0069] In a certain X well, a thermosetting resin cement slurry system is used, in which the resin is a non-hydrophilic liquid phase. A water-soluble emulsifier is used to achieve a high solid phase in the cement slurry to uniformly disperse the resin. The emulsifier is added to the slurry water, and the resin is supplied through a separate resin supply system (such as Figure 2 As shown) is supplied to the slurry cement truck.

[0070] In this example, resin is metered into the mixing tank of a cement truck in real time and then stirred and mixed with the prepared base slurry (cement slurry) to form a thermosetting resin cement slurry system. The base slurry density is 1.93 g / cm³, and the volume ratio of base slurry to resin is 10:1. The resulting mixture (thermosetting resin cement slurry system) has a designed density of 1.87 g / cm³. The wellbore discharge rate is 1.32 cubic meters per minute, and a batch mixing skid is used as a transition vessel.

[0071] In this embodiment, a total of 68 cubic meters of resin cement slurry was prepared, including 61.8 cubic meters of base slurry and 6.2 cubic meters of resin. It took 51 minutes to pump it into the well. After the construction reached stability, samples were taken from the mixing tank of the slurry cement pump truck and the transition batch mixing skid. The measured density was 1.87g / cm3. A thickening test was conducted, and the thickening time was 220min / 40Bc and 228min / 100Bc. Compared with the thickening time of 240min / 40Bc and 249min / 100Bc of the resin cement prepared by taking the slurry water, dry ash and resin samples before construction, the difference is not much, and it is within the normal error range. The thickening time curve is shown in the figure below. Figure 4 As shown, it is confirmed that the present invention can ensure the stable performance of the prepared resin cement slurry at the engineering site. The electrical measurement quality of the cementing was 99.29% high quality and 96.78% high quality.

[0072] The present embodiment formula:

[0073] Base slurry formula: 100 parts Jiahua G-grade cement + 1 part microsilica + 4 parts expansion agent SDP-1 + 3.5 parts fluid loss additive SD130 + 0.16 parts retarder SD21 + 0.5 parts defoamer SD52 + 0.36 parts emulsifier SD92 + water (the amount of admixtures is based on the mass of cement, and the liquid-to-solid ratio is 0.42)

[0074] Resin formula: 100 parts thermosetting resin + 1 part curing agent SD95-7 (the curing agent dosage is based on the mass of thermosetting resin)

[0075] Resin cement slurry composition: V (base slurry): V (resin) = 10:1 (volume ratio)

[0076] The device of this example is as follows Figure 1 、 Figure 2 As shown, the construction device includes three ash tanks 1, a well crew water tank 5, two slurry mixing cement trucks 2, a batch mixing skid 6, a well-entering cement truck 7, and a resin supply system 3 respectively connected to the two slurry mixing cement trucks 2.

[0077] Further, refer to Figure 2 As shown, the resin supply system 3 includes a storage tank 01 and a container 03. The water in the storage tank 01 can be pumped to the container 03 by a pump B02. The container 03 is connected to the slurry cement truck 2 via a resin supply pipeline 07. The resin supply pipeline 07 is provided with a pump A04, an adjustable gate 05, and a flow meter 06 in sequence. One end of a return pipeline 08 is connected to the resin supply pipeline 07 between the pump A04 and the adjustable gate 05. The other end of the return pipeline 08 is connected to the container 03. An adjustable gate 09 is installed on the return pipeline 08. Both pumps A and B are gear pumps.

[0078] The mixing tank 9 on the cement mixing truck of this embodiment is as follows Figure 6 As shown, a stirring shaft 12 is provided in the middle of the mixing tank 9, the outlet end of the resin supply pipeline 07 is mounted on the upper right side of the mixing tank 9, and a high-energy mixer 10 is provided on the upper left side of the mixing tank 9 for adding cement ash and slurry water. Figure 7 shown.

[0079] The specific operation process of this embodiment is shown in Table 1:

[0080] Table 1

[0081]

[0082]

[0083] Comparative Example

[0084] At the Qibei Y well, a thermosetting resin cement slurry system was used, and the surface process adopted a batch-mix pre-mixing scheme (non-continuous construction process), which was divided into two stages: the first stage was to mix the resin cement slurry one by one on the batch mixing skid; the second stage was to pump the resin cement into the well in sequence. Two slurry mixing cement trucks were used to mix the base slurry, one well-entry cement truck was used to pump the slurry into the well, and four batch mixing skids (eight batch mixing tanks, numbered 1 to 8) were used. The surface equipment layout diagram is shown in the figure below. Figure 3 shown.

[0085] This solution is designed for 60 cubic meters of resin cement slurry, resulting in 54.5 cubic meters of base slurry and 5.45 cubic meters of resin mixture, which are divided into 8 batch mixing tanks, each containing 6.8 cubic meters of base slurry and 0.68 cubic meters of resin mixture. Base slurry is first continuously injected into batch mixing tank #1 at a rate of 1 cubic meter / minute. When the tank reaches 2 cubic meters, 27 kg of emulsifier is manually added at one time. Then, 0.68 cubic meters of resin mixture is slowly injected over 3-4 minutes (curing agent is added to the resin in advance to form a resin mixture). When the total volume reaches 7.48 cubic meters, the next batch mixing tank is switched to complete the first stage of preparation in this way, which takes 60 minutes. In the second stage, the resin cement slurry will be pumped into the well from tanks #1 to #8 at a rate of 1.3 cubic meters / minute using a well-entering cement truck.

[0086] When the base slurry volume is small, mixing is uniform and effective. However, as the base slurry volume increases, mixing becomes difficult. At this point, the resin mixture's density is much lower than the base slurry's, floating on the surface and even less amenable to mixing and emulsification. Clearly, this method cannot fully emulsify the resin mixture and ensure uniform dispersion. Furthermore, the number of batch mixing skids used is positively correlated with the designed resin cement slurry volume. Equipment connections are complex, with a high probability of error. Furthermore, the method involves two phases: preparation and pumping into the well, making continuous construction impossible.

[0087] Both the embodiment and the comparative example can break through the existing two-phase material (hydrophilic liquid phase, solid phase) cementing construction process and realize the three-phase material (hydrophilic liquid phase, non-hydrophilic liquid phase, solid phase) cementing construction process, but the embodiment has the advantages of continuous preparation and large-displacement pumping into the well to ensure construction continuity, and better realize the role of the new material resin (non-hydrophilic liquid phase) in the field of engineering application.

[0088] In addition, if the existing two-phase cementing construction process is followed, that is, the solid additive is mixed with cement and stored in the ash tank, and the liquid additive is mixed with clean water and stored in the well site water tank. If the same amount of resin and emulsifier is added to the slurry water and stored in the well site water tank, the system is not stable and is prone to sedimentation (refer to Figure 5As shown in the figure, there are transparent small balls within 1 cm at the bottom of the beaker. The transparent small balls are resins that have settled due to the instability of the emulsion system. During construction, when the slurry water is supplied from the water tank to the slurry cement truck, the resin content will not be uniform. The performance of the cement slurry prepared in real time will vary greatly, posing a hidden danger to construction safety and cementing quality.

[0089] The embodiments of the present invention can effectively avoid the safety and quality risks in the conventional two-phase material cementing construction process in the prior art when using non-hydrophilic liquid phase materials, as well as the disadvantages of poor preparation quality, complex equipment connection and inability to continuously construct in the comparative cases.

[0090] Table 2 Differences between the Examples and the Comparative Examples

[0091]

[0092] It should be noted that the core of the resin supply system of the present invention is a gear pump, a reflux pipeline, an adjustable gate, and a flow meter. Their quantity, model, size and other optimized combination methods and equivalent changes should also be considered within the scope of the rights claim.

[0093] Two or more cement pump trucks for slurry mixing connected in parallel, and batch mixing skids with a "buffer" principle used to further ensure the uniformity of cement slurry density, and other deformation combinations should also be considered within the scope of ownership requirements.

[0094] The foregoing description is merely a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Rather, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the concept described herein through the above teachings or techniques or knowledge in the relevant field. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be protected by the appended claims.

Claims

1. A cement slurry floor construction process suitable for non-water-soluble resin, characterized in that: The following steps are involved: S1. Prepare slurry water: Add emulsifier and water-soluble additives into clean water, stir evenly to obtain slurry water, and set aside; S2. Prepare resin mixture: Add the curing agent to the resin and stir evenly, set aside; S3. Prepare base slurry: Continuously supply cement ash and slurry mixing water to the slurry mixing equipment according to the formula ratio to prepare cement slurry; S4. Continuously prepare resin cement slurry: The resin mixture prepared in step S2 is continuously added to the cement slurry prepared in step S3 according to the formula ratio, and stirred continuously to form a resin cement slurry; S5. Continuously pumping resin cement slurry into the well: The prepared resin cement slurry is continuously pumped along the pipeline into the well.

2. A cement slurry floor construction process suitable for non-water-soluble resin according to claim 1, characterized in that: S3. Prepare base slurry, specifically: Continuously supply cement ash and slurry mixing water to the slurry mixing equipment according to the formula ratio to prepare cement slurry, and adjust the discharge volume of the slurry mixing equipment to balance the total feed amount and discharge volume of cement ash and slurry mixing water; S4. Continuously preparing resin cement slurry, specifically: The resin mixture prepared in step S2 is continuously added to the cement slurry prepared in step S3 according to the formula ratio, and stirred continuously to form resin cement slurry. Then, the displacement of the slurry mixing equipment is slowly increased to balance the total feed amount and displacement of cement ash, slurry mixing water and resin mixture again.

3. The cement slurry floor construction process applicable to a non-water-soluble resin according to claim 2, characterized in that: The slurry preparation equipment is a slurry preparation cement truck. The specific steps of step S3 for preparing the base slurry are as follows: Cement ash and slurry water are continuously supplied to the slurry mixing cement truck according to the formula ratio, and are mixed into cement slurry through the high-energy mixer of the slurry mixing cement truck. The cement slurry enters the mixing tank of the slurry mixing cement truck for stirring; the feed rate of cement ash and slurry water, as well as the displacement of the slurry mixing cement truck are adjusted to make the base slurry density and displacement meet the design requirements, the total feed amount of cement ash and slurry water is balanced with the base slurry displacement, and the feed rate parameters are kept unchanged.

4. The cement slurry floor construction process applicable to a non-water-soluble resin according to claim 2, characterized in that: The slurry preparation equipment is a slurry preparation cement truck. The specific steps of continuously preparing the resin cement slurry in step S4 are as follows: The resin mixture prepared in step S2 is continuously added to the slurry cement truck according to the formula ratio, and continuously stirred with the cement slurry in the mixing tank to form resin cement slurry. Then, the displacement of the slurry mixing equipment is slowly increased so that the total feed amount of cement ash, slurry mixing water, and resin mixture and the displacement of the resin cement slurry reach the designed density and displacement of the resin cement slurry and remain unchanged.

5. The cement slurry floor construction process applicable to a non-water-soluble resin according to claim 4, characterized in that: In step S3, the slurry water is pumped to the high-energy mixer on the slurry cement truck via a jet centrifugal pump to achieve mixing of cement ash and slurry water in the high-energy mixer; In step S4, the resin mixture is added to the cement mixing truck at the pipeline between the jet centrifugal pump and the high-energy mixer; or a blending tank; or It is a secondary slurry mixing system loop with the blending tank as the starting and ending points.

6. The cement slurry floor construction process applicable to a non-water-soluble resin according to claim 2, characterized in that: The slurry preparation equipment is a slurry preparation cement truck. In step S5, the resin cement slurry prepared by the slurry preparation cement truck is pressurized by the three-cylinder plunger pump of the truck and then continuously pumped into the well through an external hard pipe manifold.

7. The cement slurry floor construction process applicable to non-water-soluble resin according to claim 2, characterized in that: The slurry preparation equipment is a slurry preparation cement truck. In step S5, the resin cement slurry prepared by the slurry preparation cement truck is further stirred by a batch mixing skid to eliminate density fluctuations and then pumped into the well by a booster pump; The booster pump is a three-cylinder plunger pump mounted on a well-entering cement truck.

8. A cement slurry floor construction process suitable for water-insoluble resin according to any one of claims 1 to 7, characterized in that: The water-soluble additives include micro-silicon, expanders, fluid loss additives, retarder, and defoamer; The prepared cement slurry, i.e. the base slurry, includes 100 parts of cement ash, 1 part of microsilica, 4 parts of expansion agent SDP-1, 3.5 parts of fluid loss reducer SD130, 0.16 parts of retarder, 0.5 parts of defoamer SD52, 0.36 parts of emulsifier SD92, and water, with a liquid-to-solid ratio of 0.42; The volume ratio of the resin in S2 to the cement slurry prepared in S3 is 10:

1.

9. A ground construction device for the cement slurry ground construction process according to any one of claims 1 to 8, characterized in that: It includes an ash tank (1), a slurry cement truck (2), a resin supply system (3), and a well crew water tank (5); The slurry cement mixing truck (2) comprises a mixing tank (9) and a water tank, wherein the water outlet of the water tank is connected to the mixing tank (9) via a pipeline; The ash tank (1) is connected to the ash inlet of the slurry cement truck (2) to transport cement ash into the blending tank (9); The well team water tank (5) is connected to the water inlet of the water tank to transport the slurry mixing water into the blending tank (9); The resin supply system (3) is connected to the top inlet of the blending tank (9) through the resin supply pipeline (07) to transport the resin mixture into the blending tank (9).

10. The ground construction device according to claim 9, characterized in that: The resin supply system (3) includes a container (03) with a stirring function, and the container (03) is connected to the slurry cement truck (2) through a resin supply pipeline (07); The resin supply pipeline (07) is provided with a pump A (04), an adjustable gate 1 (05), and a flow meter (06) in sequence; One end of a return line (08) is connected to the resin supply line (07) between the pump A (04) and the adjustable gate 1 (05), and the other end of the return line (08) is connected to the container (03).

11. The ground construction device according to claim 9, characterized in that: The output end of the slurry cement truck (2) is provided with a boosting system, and the output port of the boosting system is connected to the well manifold.

12. The ground construction device according to claim 9, characterized in that: The output end of the slurry cement truck (2) is connected to the batch mixing skid (6), the discharge port of the batch mixing skid (6) is connected to the well-entering cement truck (7), the output end of the well-entering cement truck (7) has a boosting system, and the output port of the boosting system is connected to the well-entering manifold.

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