33results about How to "Meet the requirements of on-site construction" patented technology

The invention discloses an anti-aqueous dispersion synchronous grouting material with large specific gravity and low consistence. The anti-aqueous dispersion synchronous grouting material consists of the following components in parts by weight: 100 parts of coal ash, 10-30 parts of slaked lime, 5-20 parts of cement, 10-50 parts of phosphorus gypsum, 0-200 parts of machine-made sand, 200-400 parts of shield mud and sand, 0.1-0.5 part of a water reducing agent, 0.05-0.2 part of a thickening agent and 80-120 parts of water. The shield mud and sand is used for replacing river sand and bentonite in a traditional grouting material, and the shield mud and sand and machine-made sand are taken as fine aggregates, so that the problem of resource shortage for natural sand is solved; moreover, the coal ash discharged at a power station and the phosphorus gypsum produced at a phosphorus chemical plant are reasonably utilized, so that the resource utilization of industrial waste is realized. The grouting material has the characteristics of good filling property, long castable time, large specific gravity, low consistence, anti-aqueous dispersion performance, segment floating prevention and the like, is prominent in environmental protection performance and low in cost, and can be widely applied to the shield segment grouting engineering and the like.

The invention provides a cement paste system and a preparation method thereof. The cement paste system comprises the following raw materials: G-grade oil well cement, a high-temperature-resistant elastic material, a high-temperature-resistant fluid loss agent, a high-temperature-resistant inorganic anti-channeling emulsion, a weighting agent, a high-temperature strength stabilizer, a dispersing agent, a paste regulator, a retarder and water. A cement sheath formed by using the cement slurry system in a high-temperature and high-pressure environment and in a later large fracturing constructionprocess has good elastic performance, can maintain the integrity for a long time, effectively ensures interlayer sealing, and reduces the risk of sustained casing pressure of a shale gas well.

The invention discloses a construction method of red mud-based cast-in-place light soil. The construction method comprises the following steps: 1) dividing a construction site into a plurality of working areas by using templates; 2) mixing the red mud slurry with an excitant to obtain red mud slurry; 3) foaming the foaming agent solution by a foaming machine to obtain foam; 4) mixing the red mud slurry obtained in the step 2) with the foam obtained in the step 3) to obtain red mud-based foam slurry; and 5) conveying the red mud-based foam slurry obtained in the step 4) to the working area in the step 1), pouring, molding to obtain the red mud-based cast-in-place light soil, and curing. The red mud-based cast-in-place light soil can meet the strength requirement of the light soil, protect the environment and save the cost. When the red mud-based cast-in-place light soil is adopted for construction, very simple, convenient and efficient continuous pouring can be carried out, and the pouring quality of the red mud-based cast-in-place light soil meets the requirements of field construction.

The invention relates to a high-strength resin plugging agent as well as a preparation method and application of the high-strength resin plugging agent. The high-strength resin plugging agent comprises the raw materials of unsaturated resin, a crosslinking agent and a polymerization inhibitor; the crosslinking agent is 0.5%-1% of the mass of the unsaturated resin; and the polymerization inhibitoris 0.75%-2% of the mass of the unsaturated resin. The high-strength resin plugging agent further comprises an additive being 5%-20% of the mass of the unsaturated resin. The gelation time of the high-strength resin plugging agent provided by the invention is adjustable within 3h-25h, and the high-strength resin plugging agent has the characteristics of high strength and long-term stability and issuitable for plugging large pores and fractured reservoirs for a long term.

The invention discloses a construction method of a cementing material based on slag in highway high fill. The construction method comprises the following steps: 1) construction site preparation; 2) cement slurry preparation; 3) foam preparation; 4) foam concrete preparation; 5) foam concrete casting; 6) foam concrete curing. The invention provides a construction process of cast-in-place foam concrete utilizing a large amount of blast furnace slag, which is used in the construction of a highway high fill project and can perform very simple, convenient and efficient continuous casting, and the casting quality meets the requirements of site construction. As a large amount of solid waste blast furnace slag and fly ash are adopted in slurry for the construction of the highway high fill project,the consumption of the cement is greatly reduced, so that the construction process is more energy-saving and environmentally-friendly, and the sustainable development of society is facilitated.

The invention belongs to the field of well cementation operation in petroleum engineering, and relates to large-temperature-difference low-thermal-conductivity cement paste suitable for long-sealing-section well cementation. The low-thermal-conductivity cement paste comprises the following components in parts by weight: 100 parts of G oil well cement, 15-20 parts of a low thermal conductivity material, 16-32 parts of micro beads, 2.5-4 parts of an expanding agent, 3-4 parts of a fluid loss agent, 1.5-2 parts of a dispersing agent, 1.5-3 parts of a retarder, 0.5-1 part of a defoaming agent, and70-85 parts of water. According to the blended low-density cement paste system, domestic high-strength glass beads are used as a main lightening admixture, and a low-thermal-conductivity material containing micro-silicon is added to reduce the thermal conductivity coefficient of set cement. Therefore, the formed low-cost and high-performance cement paste system can greatly improve the well cementation quality of a deep well leaky stratum, reduce the thermal conductivity coefficient of a cement sheath and improve the thermal preservation capacity of a wellbore.

The invention discloses a construction method of an air coating material with an additionally-added synergist in a road. The construction method includes the following steps of (1) construction site preparation, (2) concrete synergist preparation, (3) concrete slurry preparation, (4) foam preparation, (5) foam concrete preparation, (6) foam concrete pouring, and (7) foam concrete curing. By the adoption of the construction method of the air coating material with the additionally-added synergist in the road, the use amount of cement can be reduced, the hydration degree of cement minerals is increased, the number of gels is increased through promotion of hydration of the minerals difficult to hydrate, and the strength of foam concrete is improved. Meanwhile, by the adoption of a constructionprocess of the cast-in-place foam concrete, continuous pouring can be simply, conveniently and efficiently achieved, and the pouring quality of the cast-in-place foam concrete meets the site construction requirements.

The invention discloses a temperature-resistant and salt-resistant multi-component polymerization thickening agent and a preparation method thereof. The preparation method of the thickening agent comprises the following steps: uniformly mixing acrylamide (AM), sodium 2-acrylamide-2-methylpropanesulfonate (AMPS), vinyl pyrrolidone (NVP) and acryloylmorpholine (ACMO) according to a certain proportion, adding a proper amount of a redox initiator and a water-soluble azo initiator, carrying out a stirring reaction at a constant temperature of 60-90 DEG C under an anaerobic condition, carrying out solvent sedimentation, conducting cooling and solidification, naturally conducting airing, and then conducting shearing and crushing to obtain the temperature-resistant and salt-resistant multi-component polymerization thickening agent. The temperature-resistant and salt-resistant multi-component polymerization thickening agent has the advantages of good salt resistance, hydrolysis resistance, temperature resistance, shearing resistance and the like.

The invention discloses a shale gas well cementation and oil displacement type flushing agent. The shale gas well cementation and oil displacement type flushing agent comprises the following components in parts by weight: 100 parts of water, 24-48 parts of an emulsifier, 12-24 parts of a cosolvent and 6-12 parts of a hydration inhibitor, wherein the emulsifying agent comprises at least one of cetostearyl alcohol polyoxyethylene ether, propylene glycol block polyether and fatty alcohol-polyoxyethylene ether potassium phosphate; the cosolvent is prepared from isomeric alcohol polyoxyethylene ether and oleic acid polyoxyethylene ester in a weight ratio of (3-4): (1-2); the hydration inhibitor comprises polyethylene glycol, glucoside and / or oleyl alcohol polyoxyethylene ether. The shale gas well cementation and oil displacement type flushing agent can effectively displace high-density oil-based drilling fluid, interface wettability reversal is achieved, reservoir stability is guaranteed, and annulus well cementation quality is improved.

The invention discloses a low-temperature melon gel fracturing liquid which comprises a base liquid, a crosslinking agent and a gel breaker. The base liquid comprises melon gel, formaldehyde, a cleanup additive, a low-temperature activator, sodium hydroxide and water. The gel breaker is a water-soluble complex which is prepared from silver nitrate and a ligand A of the structure shown in the formula I or a ligand B of the structure shown in the formula II and stably exists under the alkaline conditions. The consumption mass ratio of the silver nitrate to the ligand A or the ligand B is (3-5):(20-35). The base liquid comprises, by mass, 0.3-0.6% of the hydroxypropyl melon gel, 0.05-0.2% of the formaldehyde, 0.1-0.4% of the cleanup additive, 0.02-0.03% of the sodium hydroxide, 5-30 ppm of the low-temperature activator and the balance water. The sodium hydroxide is used for adjusting the pH value of the base liquid to 10-11. The low-temperature melon gel fracturing liquid is suitable fora reservoir stratum at 20-25 DEG C, and the low-temperature activator in the low-temperature melon gel fracturing liquid can activate the gel breaking reaction of the gel breaker ((NH4)2S2O8).

The invention discloses a construction method of a corrosion resistant silica fume binding material in a highway. The construction method comprises the following steps that (1) silica fume cement slurry is prepared, specifically, silica fume, cement, mineral powder, coal ash and gypsum are mixed with bauxite, and then mixed with water, and the silica fume cement slurry is obtained; (2) foam is prepared, specifically, a foaming agent solution is promoted to foam, and the foam is obtained; (3) foam silica fume concrete is prepared, specifically, the silica fume cement slurry and the foam are mixed, and the foam silica fume concrete is obtained; (4) the foam silica fume concrete is poured, specifically, the foam silica fume concrete is conveyed to a highway construction area through a pipeline, and automatic flowing and pouring are conducted; and (5) the foam silica fume concrete is maintained, specifically, after the foam silica fume concrete is finally set, watering maintenance is conducted. The construction method provided by the invention applies corrosion resistant silica fume binding material to high filling of the highway with foam concrete, the construction technology is simple, convenient and efficient, continuous pouring can be achieved, and the pouring quality conforms to the requirement of site construction.

The invention discloses a construction method of a cementing material based on iron tailings in a highway high embankment. The construction method includes the steps: 1) construction site preparation;2) cement slurry preparation; 3) foam preparation; 4) foam concrete preparation; 5) foam concrete pouring; 6) foam concrete curing. The invention provides a construction process of cast-in-situ foamconcrete based on the iron tailings. The concrete is used for the highway high embankment and can be simply, conveniently, efficiently and continuously cast, and casting quality meets the requirementsof site construction. A large number of solid waste iron tailings are used for replacing cement in the construction method of the highway high embankment, the solid waste is recycled, the manufacturing cost of a highway is saved, and sustainable development is facilitated.

The invention discloses a low-temperature guar gum fracturing fluid, which comprises a base fluid, a crosslinking agent and a gel breaker; the base fluid comprises the following components: guar gum, formaldehyde, drainage aid, low-temperature activator, hydrogen Sodium and water; the breaker is (NH4) 2 S 2 o 8 , the low-temperature activator is a water-soluble complex formed by silver nitrate and ligand A of the structure shown in formula I or ligand B of the structure shown in formula II and exists stably under alkaline conditions; silver nitrate and ligand A Or the mass ratio of ligand B used is 3‑5:20‑35. The base liquid includes the following components in mass percentage: hydroxypropyl guar gum 0.3-0.6%, formaldehyde 0.05-0.2%, drainage aid 0.1-0.4%, sodium hydroxide 0.02-0.03%, low-temperature activator 5-30ppm , the rest is water; sodium hydroxide is used to adjust the pH value of the base solution to 10‑11. The low-temperature guar gum fracturing fluid provided by the invention is suitable for reservoirs at 20-50°C, and the low-temperature activator in the low-temperature guar gum fracturing fluid can activate the breaker (NH 4 ) 2 S 2 o 8 Gel breaking reaction.

The invention relates to the concrete technical field, in particular to a repairing grouting device of a concrete breaking plate and a method thereof, which solves the problems of prior art which adopts a demolishing and remaking technology requiring much time and work, wasting source, etc. The device consists of a grout mixture stirring barrel, a grout storing barrel, a high-pressure grouting pump which are connected with a piping in sequence, wherein, the high-pressure grouting pump is connected with a grouting piping, and the grouting piping is connected with a grouting nozzle. The method comprises the steps that: the grouting nozzle is arranged after being punched; the grout mixture is compounded and grouted; a groove is made along two sides of a gap by a cutting machine after the grout mixture being solidified and polymer mortar is filled into the groove and a repairing surface is polished and sprayed by grout, etc. The grouting device of the invention has simple structure, reasonable design, low cost, and being capable of meeting the requirements of spot construction, high efficiency, and stable operation with small and exquisite and portable characterizes. The grouting device is matched with a concrete breaking plate through the repairing method, thus greatly improving repairing quality of the concrete breaking plate, reducing construction cost and having certain popularization value.

The invention discloses a construction method of a cementing material based on slag in highway high fill. The construction method comprises the following steps: 1) construction site preparation; 2) cement slurry preparation; 3) foam preparation; 4) foam concrete preparation; 5) foam concrete casting; 6) foam concrete curing. The invention provides a construction process of cast-in-place foam concrete utilizing a large amount of blast furnace slag, which is used in the construction of a highway high fill project and can perform very simple, convenient and efficient continuous casting, and the casting quality meets the requirements of site construction. As a large amount of solid waste blast furnace slag and fly ash are adopted in slurry for the construction of the highway high fill project,the consumption of the cement is greatly reduced, so that the construction process is more energy-saving and environmentally-friendly, and the sustainable development of society is facilitated.

The invention belongs to the field of well cementing operations in petroleum engineering, and relates to a cement slurry with large temperature difference and low thermal conductivity suitable for well cementing in long sealing sections. The low thermal conductivity cement slurry of the present invention is composed of G oil well cement: 100 parts; low thermal conductivity material: 15-20 parts; microbeads: 16-32 parts; expansion agent: 2.5-4 parts; fluid loss reducer: 3-4 parts; Dispersant: 1.5-2 parts; retarder: 1.5-3 parts; defoamer: 0.5-1 part; water: 70-85 parts. The low-density cement slurry system prepared by the present invention uses domestic high-strength glass microspheres as the main lightening agent, and adds low thermal conductivity materials containing microsilicon to reduce the thermal conductivity of cement stone. Therefore, the low-cost, high-performance cement slurry system formed by the present invention can greatly improve the cementing quality of deep well leaky formations, reduce the thermal conductivity of the cement sheath, and improve the thermal insulation capacity of the wellbore.

The invention discloses an adjustable cutting device for building construction, and relates to the technical field of cutting devices for building construction. The adjustable cutting device comprisesa box body and a sliding plate, the bottom of the box body is of an open type structure, the sliding plate is fixedly connected to the lower portion of the box body, an operation opening is formed inthe right side wall of the box body, a cutter outlet groove is formed in the sliding plate, and a mounting frame is rotatably hinged to the upper portion of the sliding plate; and a cutter retractingmechanism is fixedly connected to the mounting frame, and angle adjusting mechanisms are arranged at the two sides of the mounting frame. Compared with the prior art, the adjustable cutting device has the beneficial effects that the position of a sliding block is adjusted through a manual lead screw, so that a mounting plate rotates, a rotating shaft slides in a second arc-shaped groove, a cutterwheel extends out of a cutter outlet groove under the action of the cutter retracting mechanism, the distance of the cutter wheel extending out of the sliding plate can be adjusted according to requirements by means of the manner, and the cutting depth can be adjusted; and after the device is used, the knife wheel is retracted through the knife retracting mechanism, the device is more convenientto store, and the device with the knife wheel capable of being hidden is safer.

The invention belongs to the technical field of building materials, and particularly relates to a long-acting plastering mortar additive and application thereof. The additive is composed of sodium gluconate, polyoxyethylene, a polycarboxylic acid water reducing agent, sodium chloride, calcium lignosulphonate and the like. The long-acting plastering mortar additive is reasonable in formula, can effectively improve the workability and mechanical properties of the mortar, has obvious advantages, overcomes the common fault in the quality of the traditional building mortar, and can satisfy the quality requirements for walling material construction.

The invention discloses a water-soluble temporary plugging agent suitable for secondary fracturing. The agent is prepared from the following raw material components in percentage by mass: 55-65% of polylactic acid, 20-25% of carboxymethyl guar gum, 10-15% of rubber powder, 3-8% of bentonite, and 0.5-3% of a fluorocarbon surfactant. The rubber powder is butyl rubber powder or high styrene styrene butadiene rubber powder. The preparation method of the water-soluble temporary plugging agent comprises the following steps: adding the polylactic acid into a decompression kettle, heating to 85-95 DEG C, preserving constant temperature, adding the carboxymethyl guar gum after the polylactic acid softens, and stirring and mixing evenly; adding the fluorocarbon surfactant into a mixed material, and mixing evenly; then adding the rubber powder and the bentonite, and stirring for reacting for 2 hours; cooling and solidifying after the reaction is completed, and smashing to obtain the water-soluble temporary plugging agent. Compared with a conventional temporary plugging agent of the same type, the water-soluble temporary plugging agent disclosed by the invention is higher in plugging strength, adhesion performance and suspension stability than the conventional temporary plugging agent, and the requirements of site construction can be met.

The invention provides a cement slurry system and a preparation method thereof. The raw materials of the cement slurry system include G grade oil well cement, high temperature resistant elastic material, high temperature resistant fluid loss reducer, high temperature resistant inorganic anti-channeling emulsion, weighting agent, high temperature strength stabilizer, dispersant, slurry regulator, retarder agent and water. The cement sheath formed by using this cement slurry system in the high temperature and high pressure environment and the later large-scale fracturing construction process has good elastic properties, can maintain its integrity for a long time, effectively guarantees the interlayer seal, and reduces the risk of shale gas wells. Risk of annular pressure.

The invention particularly relates to a tool used for screwing of screwing parts of narrow space, and belongs to the technical field of cable waterproof joint mounting tools. The technical aim to be achieved is to provide a tool used for screwing of screwing parts of narrow space. According to the adopted scheme, a semicircular arc structure is adopted by a clamping portion, the clamping portion is vertically arranged in the axial direction, and the side, facing the axis, of the clamping portion is a semi-hexagonal safe; a semicircular conic structure is adopted by an extending connecting portion, the extending connecting portion is arranged obliquely oppositely to the vertical face in the axial direction, and the lower end of the extending connecting portion and the upper end face of theclamping portion are fixed; a screwing seat is fixed to the upper end of the extending connecting portion, a screwing connecting hole vertical in the axial direction is arranged on the screwing seat,and the screwing connecting hole is used for being in clamped connection with the end of a torque wrench. The tool completes fastening mounting of cable glands of narrow space, is good in mounting andfastening effect and achieves the waterproof effect.

The invention discloses an anti-aqueous dispersion synchronous grouting material with large specific gravity and low consistence. The anti-aqueous dispersion synchronous grouting material consists of the following components in parts by weight: 100 parts of coal ash, 10-30 parts of slaked lime, 5-20 parts of cement, 10-50 parts of phosphorus gypsum, 0-200 parts of machine-made sand, 200-400 parts of shield mud and sand, 0.1-0.5 part of a water reducing agent, 0.05-0.2 part of a thickening agent and 80-120 parts of water. The shield mud and sand is used for replacing river sand and bentonite in a traditional grouting material, and the shield mud and sand and machine-made sand are taken as fine aggregates, so that the problem of resource shortage for natural sand is solved; moreover, the coal ash discharged at a power station and the phosphorus gypsum produced at a phosphorus chemical plant are reasonably utilized, so that the resource utilization of industrial waste is realized. The grouting material has the characteristics of good filling property, long castable time, large specific gravity, low consistence, anti-aqueous dispersion performance, segment floating prevention and the like, is prominent in environmental protection performance and low in cost, and can be widely applied to the shield segment grouting engineering and the like.

The invention discloses a fabricated arc-shaped strip soft package modeling design structure. The fabricated arc-shaped strip soft package modeling design structure comprises a base plate, a first strip, a second strip, a filling block and soft package cloth; the first strip is arranged in the circumferential direction of the base plate, the first strip comprises a first bottom plate and a first clamping plate, a plurality of notches are formed in the first bottom plate, and the first bottom plate is bent to be in an arc shape along the notches; a clamping groove is formed in the first bottom plate, the base plate is inserted into the clamping groove, the first clamping plate is connected to the first bottom plate, and an anti-rebound device is arranged on the first clamping plate; the anti-rebound device is located at the bent position of the first clamping plate, a first clamping groove is formed in the first clamping plate, and the first clamping groove is arranged in the length direction of the first clamping plate; and the second strip is detachably connected to the base plate, a plurality of second clamping grooves are formed in the second strip, and the second clamping grooves are formed in the trend of the second strip at intervals. The notches are formed in the first strip, so that the problems that the strip cannot be bent, and installation of an arc-shaped soft package is difficult to meet can be solved.