38results about How to "Strong stratum adaptability" patented technology

The invention discloses a slippery water fracturing fluid with ultra-low interfacial tension with crude oil after degradation. The slippery water fracturing fluid is prepared from an ultra-low interfacial tension drag reducer, a demulsify-cleanup additive, a clay stabilizer and a degrading agent. A preparation method of the slippery water fracturing fluid comprises steps as follows: 0.02%-0.10% in percentage by mass of the ultra-low interfacial tension drag reducer, 0.1%-0.2% in percentage by mass of the demulsify-cleanup additive and 0.3% in percentage by mass of the clay stabilizer are added to every ton of water, the agents are mixed to form a homogeneous solution, and 0.08% of the degradation agent is added from a mixing tank of blending equipment during construction. Additives of the slippery water fracturing fluid are all liquid phase, and the slippery water fracturing fluid can be quickly dispersed in water, have good salt tolerance, are not easily affected by the content of bacteria in a fluid preparation solution and have a stable drag reduction effect under the construction displacement of 6-20 m<3> / min; when applied to improvement of low-permeability oil and gas reservoirs, the slippery water fracturing fluid can reduce the interfacial tension between a gel breaking liquid and crude oil and reduce string and construction friction, helps production of the crude oil, increases of the yield of the crude oil and can be prepared repeatedly from backflow fracturing fluids.

The invention discloses a method for positioning temporary middle walls in a large-section tunnel supporting structure of a formation with a soft top and a hard bottom. The method comprises the following steps of (1) analyzing a stress state of a structure of the formation with the soft top and the hard bottom by using a force method in structural mechanics and preliminary bracing stress properties, analyzing the stress state of a preliminary support of a tunnel when the middle walls do not exist, calculating a foundation load of arch feet of the preliminary support of the tunnel when the middle wall do not exist, analyzing the stress state of the preliminary support of the tunnel when the middle walls exist, and calculating the foundation load of the preliminary support of the tunnel when the middle walls exist; (2) further discussing a stress mechanism of the structure of the formation with the soft top and the hard bottom according to analysis of the stress state; and (3) preliminarily judging whether the temporary middle walls of an upper step, a middle step and a lower step are mounted or not according to a formation mode, the specific position of a boundary of the formation with the soft top and the hard bottom and the condition of hardness of surrounding rocks.

The invention discloses a dual-mode compound shield testing machine which comprises a shield testing machine, wherein the shield testing machine comprises a shield shell; the front end of the shield shell is provided with a cutter head; the shield shell is internally provided with a soil compartment partitioned by a soil compartment clapboard; the soil compartment is internally provided with a stirring rod along the radial direction; the back surface of the soil compartment clapboard is connected with a grout pipe and a spiral unearthing device; and the spiral unearthing device is communicated with the soil compartment. The grout pipe can be used as a pipeline for muck modifying agents such as foam; and under a balanced mode, the grout pipe can be used as a slurry inlet and outlet pipeline, so that the conversion of working modes of the shield testing machine can be realized easily.

The invention discloses a multiple position tridimensional stirring drill bit used for leading soft soil or mollisol to reinforce a stirring pile, comprising a drill rod, a front drill point which is positioned at the front end of the drill rod and a multilayer main blade fixed on the drill rod; wherein, the main blade is provided with at least one group of stirring wheels which rotate by taking the main blade as a rotating shaft and does not have power in the process that the drill rod rotates. The multiple position tridimensional stirring drill bit makes use of the energy which is supplied by the rotation of the drill rod and by means of the reaction force of stratum so as to realize the rotation of the stirring wheels, thereby completing the multiple position tridimensional stirring to the stratum by combining the main blade and the stirring wheels and achieving the aim of forming the pile by stirring. The multiple position tridimensional stirring drill bit can remarkably improve the quality of pile forming and effectively reinforce the depth, which has the advantages of uniform stirring, simple structure, strong stratum adaptability, high pile forming efficiency and effectively controlling slurry return.

The invention discloses a method of replacing a shield tail brush of a shield tunneling machine; the method comprises the steps of I, setting circular bamboo reinforcement grouting holes, and performing grouting construction; II, replacing the shield tail brush; III, mounting a segment; IV, taking protective measures after the replacement of the shield tail brush. The method of the invention has the advantages that directional localized grouting can be performed according to field actual conditions; the method has low manufacture cost, high construction practicability, zero tunnel space taken by reinforcing equipment, short construction period and the like; little influence is caused to structural durability of the segment, and no adverse influence is caused to the structural stability of a shield tunnel; the method is highly worthy of popularization and application.

The invention relates to a multi-functional drilling tool assembly used for complex formations and a drilling method thereof. The drilling tool assembly comprises a drilling assembly, a detection assembly used for detecting inside of a hole, a hole wall restoration assembly used for restoring a hole wall, a drilling tool unlocking assembly used for unlocking a drilling tool, a control host and a delivery robot. The drilling assembly is used to drill and sample rubbles. The delivery robot can be arranged on the outer wall of a drilling rod column in an upward and downward sliding manner. The detection assembly is arranged on the carrying robot and moves up and down along the outer wall of the drilling rod column alongside the delivery robot. The control host is electrically connected with the detection assembly and the delivery robot. The multi-functional drilling tool assembly has evident many advantages such as drilling and sampling efficiency, high stratum adaptability and high automation degree. The detection assembly can drill and sample in complex formations while detecting the condition of the inside of the hole, thereby offering scientific, accurate and comprehensive technical parameters and information for accurate judgment and processing of hole-drilling accidents.

The invention discloses a low net clearance lower metro building enclosure diaphragm wall which comprises a reinforcement cage, wherein H-shaped steel is welded on two sides of the reinforcement cage; a steel plate is welded on one side of the upper end of the reinforcement cage; the reinforcement cage is placed in a diaphragm wall forming groove; and a concrete structural layer is poured in the reinforcement cage. According to the invention, the diaphragm wall reinforcement cage is integrally manufactured, and steel plate connection is adopted, so that segmentation hoisting at underbridge low net clearance is facilitated, and after the steel plate of the reinforcement cage is dismantled into segments, positioning is accurate and welding is convenient. The invention further provides a construction method of the low net clearance lower metro building enclosure diaphragm wall. The construction method comprises the following steps: a percussion drill is selected and used for forming holes for grooving a station continuous wall, the percussion drill drills a main hole and a secondary hole sequentially, finally, a plane set-hammer is adopted for repairing the holes, and the main hole and the secondary hole are connected to form a groove section. The percussion drill is wide in range of application, simple in physical structure, high in adaptation to stratum and relative low in grooving cost. Taking construction cost, stratum condition, mechanical applicability and the like into consideration, holes formed by the percussion drill can meet requirements.

The invention discloses a novel rapid water stopping and soil mass improving method which is characterized by comprising the following steps of 1, carrying out water stopping, i.e. a, determining a water stopping position; b, drilling by utilizing a drilling machine; c, preparing grout; d, injecting water glass and phosphoric acid grout to carry out water stopping; and e, injecting water glass and cement grout to carry out reinforcement; and 2, carrying out soil strengthening and conditioning, i.e. a, lofting a hole site; b, drilling; c, carrying out grouting by utilizing a grouting machine; d, lifting a spray rod until grouting is finished; and e, moving to a next hole site. According to the invention, the soil strengthening construction period before a tunnel is excavated is shortened; aiming at the condition of water leakage when a foundation pit is excavated, water can be timely stopped; solidifying and hardening time is easy to regulate; the grout with long designed hardening time also has high intensity; and the novel rapid water stopping and soil conditioning method is efficient and safe and is cost-saving. Moreover, the novel rapid water stopping and soil conditioning method has good permeability; the grout is not lost and is not shrunk after being solidified; a hardening agent has no toxicity; and pollution cannot be caused to the underground water.

The invention relates to the technical field of through casting coring of an oil field production well, in particular to a through casting side wall penetrating coring tool. The Through casting side wall penetrating coring tool comprises a radial horizontal drilling guide mechanism, and further comprises a casing windowing mechanism and a coring mechanism. The radial horizontal drilling guide mechanism comprises a hydraulic anchor and a guider, the lower end of the hydraulic anchor is connected with the guider through an upper connector, a sealing base is designed on the inner wall of the upper connector, and a sidewall contact device and a straightening mechanism are arranged on the side wall of the lower end of the guider. The through casting side wall penetrating coring tool can penetrate through a casting for coring work of orientating and deep penetrating, coring construction is easy, convenient, low in cost, safe and reliable, the adaptability to the stratum is high, and the coring yield rate is high. Taken rock cores are regular, lithology and oiliness observation can be visually carried out, lithology, electrical property, physical property and oiliness analysis and tests can be carried out with the help of instruments, the porosity, the permeability and other reservoir parameters are obtained, and the tool has direct guiding significance on reservoir assessment.

The invention discloses a collapsible loess wellpoint presoaking dynamic compaction replacement method, and belongs to a deep collapsible loess foundation treatment method. The method comprises the steps that firstly, the treatment range and the treatment depth of a foundation are determined; secondly, within the foundation treatment range, a cushion material is laid on the whole surface; thirdly, according to the foundation treatment depth, a wellpoint hole is drilled out, a presoaking wellpoint pipe is vertically arranged in the wellpoint hole according to presoaking parameters, and water-pervious holes are evenly distributed in the wall of the pipe stretching into the foundation; fourthly, the presoaking wellpoint pipe is connected with a water injection pipe, and the foundation is subject to presoaking treatment; fifthly, the foundation is subject to dynamic compaction replacement treatment; and sixthly, the foundation quality is tested and is subject to acceptance check. The method is easy and convenient to construct, large in treatment depth, short in construction period and capable of effectively removing collapsibility of the deep collapsible loess foundation, and the bearing force of the foundation obtained after treatment is high.

The invention discloses a composite profile control method for middle-high permeability oil reservoirs and belongs to the technical field of profile control of oil reservoirs. The composite profile control method for the middle-high permeability oil reservoirs is characterized in that the method comprises the following steps that 1, tracer agent detecting is conducted on a target block, and the waterline advance speed is determined; 2, polymeric microspheres are injected into a water injection well; 3, formation water is injected into the water injection well; 4, oil wells are selected according to the waterline advance speed of oil wells in the target block; 5, biopolymer solutions are injected into the selected oil wells; and 6, the oil wells injected with the biopolymer solutions are started up for production after being shut down for 10 d-20 d, and the rest of oil wells conduct normal production. The composite profile control method for the middle-high permeability oil reservoirs has the advantages of being wide in oil reservoir application range, good in plugging and adjusting effect and long in profile control validity period; the used profile control agents are small in using amount, low in cost and high in high-temperature resistance, salt resistance and stratum adaptability; thus, the composite profile control method can be widely applied to the technical field of water shut-off and profile control of the middle-high permeability oil reservoirs.

The invention discloses a supporting and reverse propelling device of a shield testing machine. The supporting and reverse propelling device comprises the shield testing machine, wherein the shield testing machine is fixedly arranged on a main body base; the supporting and reverse propelling device further comprises a guide groove, a propelling power device and a reverse propelling device with horizontal positioning; the main body base is connected with the guide groove in a sliding way; the propelling power device is connected with the shield testing machine in a transmission way; the guide groove and the propelling power device are both fixedly arranged on a system supporting platform; and the system supporting platform is perpendicularly connected with the reverse propelling device in a sliding way. The supporting and reverse propelling device has the advantages of reasonable structural design, functional diversity, strong generality, strong adaptability to a formation and broad application prospect and can be also used as teaching equipment; and the shield testing machine can be widely applied to simulation of complicated tunnel shield construction conditions.

The invention provides a down hole impacting rotary jetting mixing pile construction technology and device. The down hole impacting rotary jetting mixing pile construction device includes a drill rod, a down hole impacting device arranged at the bottom end of the drill rod, a mixing device connected to the lateral side of the drill rod or the down hole impacting device, and a nozzle arranged on the lateral side of the down hole impacting device. A communicating high-pressure air passageway is arranged among the drill rod, the nozzle and the down hole impacting device. The above down hole impacting rotary jetting mixing pile is adopted in the down hole impacting rotary jetting mixing pile construction technology. By means of the down hole impacting rotary jetting mixing pile construction technology and device, the stratum adaptability is high, and pollution and influences of industrial production to the environment are reduced.

Provided is a foundation pit bracing water stopping structure with a support pile and a three-axis stirring pile arranged in a cased drilling manner. The support pile is constructed on the outer side of a foundation pit; the stirring pile is constructed in a support pile area in a three-axis stirring manner; and the support pile directly cuts a pile body on the three-axis stirring pile for construction, and the whole bracing water stopping structure is formed. The three-axis stirring pile is large in power, and can perform stirring in strong-weathered rock and the above stratum. Compared with a conventional small diameter cement stirring pile, the beneficial effects of being small in number of lap joints, good in water stopping effect, high in construction efficiency, high in stratum adaptability and the like are achieved; and compared with a jet grouting pile, the beneficial effects that the water stopping effect is good, and price is low are achieved. According to the foundation pit bracing water stopping structure with the support pile and the three-axis stirring pile arranged in the cased drilling manner, the support pile and the three-axis stirring pile are combined together, construction is performed in the manner that the support pile and the three-axis stirring pile arranged in the cased drilling manner, the stratum condition can be improved, the problem of hole collapse of the support pile is effectively solved, a water stopping effect better than that of the conventional stirring pile and the jet grouting pile can also be achieved, meanwhile the occupied space of a supporting structure is saved, and the water stopping capacity of an existing pile-in-row bracing water stopping structure is enhanced.

The invention discloses a supporting and reverse propelling device of a shield testing machine. The supporting and reverse propelling device comprises the shield testing machine, wherein the shield testing machine is fixedly arranged on a main body base; the supporting and reverse propelling device further comprises a guide groove, a propelling power device and a reverse propelling device with horizontal positioning; the main body base is connected with the guide groove in a sliding way; the propelling power device is connected with the shield testing machine in a transmission way; the guide groove and the propelling power device are both fixedly arranged on a system supporting platform; and the system supporting platform is perpendicularly connected with the reverse propelling device in a sliding way. The supporting and reverse propelling device has the advantages of reasonable structural design, functional diversity, strong generality, strong adaptability to a formation and broad application prospect and can be also used as teaching equipment; and the shield testing machine can be widely applied to simulation of complicated tunnel shield construction conditions.

The invention relates to a method and a device for forming a wall through rolling a groove, belongs to an all-new construction method and special equipment for constructing an underground diaphragm wall, and belongs to the field of water conservancy hydropower and the field of geotechnical engineering. Drilling systems on two sides are separately and fixedly connected with a lifting device; two ends of a roller system at the bottom are separately connected with the corresponding drilling system; a flushing pipe assembly is arranged on a roller. The method comprises the following steps that a groove is formed in a stratum through surface milling to form a groove segment; materials including cement grout and the like can be directly injected into the groove section; the injected materials are stirred and mixed with stratum particles; solidification is performed on the stirred and mixed materials to form the wall. According to the method disclosed by the invention, a slurry dado can also be adopted and is replaced by materials including concrete and the like, or a geomembrane is arranged, so that an underground diaphragm wall or an impermeable barrier is built. The method and the device disclosed by the invention is suitable for various of soil layers, sand layers, gravel stone layers and strong-weathering rock strata; the stratum particles are cut and peeled off through surface milling, and groove holes can be formed in the slurry dado, and then the slurry is replaced by the materials for forming the wall, so that the wall is formed; and a self-solidifying type grout can also be used for stirring into the strata to form the underground diaphragm wall directly.

The invention discloses an anti-seismic foundation. The anti-seismic foundation comprises a limiting wall. The limiting wall is arranged on a pile group foundation body. The limiting wall and the pile group foundation body are fixedly connected through cement mortal. Baffles are installed on the two sides of the limiting wall. The outer side face of each baffle and the two ends of the pile group foundation body are located on the same horizontal line. Connecting pieces are arranged at the two ends of the pile group foundation body. Each connecting piece penetrates through the pile group foundation body transversely. A cast-in-place pile is arranged on each connecting piece. Each cast-in-place pile is of an L-shaped structure. Each connecting piece transversely penetrates through the end, on the long edge, of the corresponding cast-in-place pile. A jet grouting pile is arranged between the end, on the short edge, of each cast-in-place pile and the corresponding connecting piece. A reinforced concrete base is transversely connected between the two jet grouting piles. A main pile column is vertically installed between the reinforced concrete base and the pile group foundation body. According to the anti-seismic foundation, the better anti-seismic function can be achieved, connection is reliable, the overall connection performance is high, the vertical bearing capacity and the horizontal shearing resistance are both high, a pile body is not prone to damage, the stratum adaptability is high, differential settlement of the foundation can be reduced, and the anti-seismic foundation can be better used.

The invention relates to the technical field of building construction, in particular to a multi-layer bonding composite three-dimensional fabric foundation pit waterproof curtain supporting structureand a construction method thereof. The multi-layer bonding composite three-dimensional fabric foundation pit waterproof curtain supporting structure comprises a plurality of cast-in-situ bored piles and foundation pit connecting parts arranged among the cast-in-situ bored piles and used for connecting the cast-in-situ bored piles; the plurality of cast-in-situ bored piles are uniformly arranged atintervals; and each foundation pit connecting part comprises a strip-shaped foundation trench and a reinforcement cage arranged in the strip-shaped foundation trench, and a plurality of layers of composite three-dimensional fabrics are horizontally arranged in the reinforcement cage; The piles are connected into a whole through the composite three-dimensional fabrics and reinforced concrete, thestrength is improved, and the water stop performance is enhanced; the water stopping capability is improved by about 30%; and the supporting strength of the cast-in-situ bored piles is improved by 15%-20%; Compared with a large-volume concrete structure, the used composite three-dimensional fabric has the advantages that the use amount of concrete is saved, the construction cost is reduced by about 10%, and the environment is improved; and epoxy asphalt is used as an adhesive of each layer of three-dimensional fabric, so that the composite three-dimensional fabric is endowed with relatively strong water stop performance and bonding stability.

The invention provides an MCF fracturing temporary plugging agent and a preparation method and application thereof.The MCF fracturing temporary plugging agent comprises main components and additives, the main components comprise petroleum resin, ozocerite and calcium stearate, the additives comprise thermosetting resin, water-soluble resin and positive electricity gel, and the weight ratio of the additives to the main components is 1: (10-50). The MCF fracturing temporary plugging agent provided by the invention belongs to an oil-soluble resin temporary plugging agent, has the technical advantages of high compression strength, full degradation, adjustable particle size, safety, environmental protection, no danger, small dosage, low cost and the like, and has a wide application prospect.

The invention discloses a metro-adjacent complex geological environment supporting system construction method which comprises the following steps: (1) determining foundation pit positions of a 1# plot basement and a 2# plot basement 2, which are to be established, adjacent to the front side and the back side of a metro test line rail respectively, and then carrying out poured long screw drill pile construction on each pit sideline position every two holes respectively; and (2) symmetrically and simultaneously excavating the 1# plot basement foundation pit and the 2# plot basement foundation pit adjacent to the front side and the back side of the metro test line rail according to layers and sections respectively, and then carrying out prestressed anchor rod construction of corresponding layers, wherein at the depth of a first layer, tops of piles in the same foundation pit are connected together through a top beam, and a circle of brick wall is built on the top of the top beam. With adoption of the method, running safety of a metro is guaranteed to the maximum.

The invention provides polymer swelling particles for a drilling fluid. The polymer swelling particles are obtained and prepared by reacting acrylamide, acrylic acid, alkenyl sulphonate monomer, a cross-linking agent, an initiator, water and a pH value regulator. The polymer swelling particles obtained by the invention are resistant to a temperature of 120 DEG C and resistant to 4wt% salt, and have multiple effects of tackifying, extracting, filtration loss lowering and the like at the same time. Products obtained in the invention are easily dispersed in water and very convenient to apply; moreover, polymer swelling particles with different strengths and different particle sizes can be prepared to obtain various solid phase-free drilling fluids with different parameters according to a certain proportion. The solid phase-free drilling liquid system is simple to prepare and maintain, and strong in adaptability to stratum characteristics, and has very good rheological behavior, inhibitive characteristic and filtration loss lowering characteristic.

The invention relates to a compound oil deposit antiswelling and sand inhibiting agent and a preparation method thereof. The compound oil deposit antiswelling and sand inhibiting agent is prepared from the following raw materials in parts by weight: 20 to 30 parts of epoxy chloropropane-trimethylamine polymers, 20 to 30 parts of cationized polyacrylamide, 20 to 30 parts of poly-dimethyl diallyl ammonium chloride, 37.5 parts of ammonium chloride, 3.75 parts of dibutyl phthalate, 2.27 to 2.75 parts of hydroxyethyl ethylenediamine, 1.0 to 1.25 parts of triethylene tetramine, 5 to 10 parts of graphite powder, 1 to 4 parts of methyl methacrylate, 2 to 5 parts of biuret 2-butoxyethyl acetate, 2 to 5 parts of N-zinc pentamethylene dithiocarba-piperdine complex and 5 to 10 parts of titanate coupling agents. The compound oil deposit antiswelling and sand inhibiting agent is adsorbed on the surface of viscosity particles; a layer of protecting film is formed on the surface, so that the viscosity particles are effectively protected; clay particles are prevented from hydration swelling.

The invention discloses a composite profile control method for middle-high permeability oil reservoirs and belongs to the technical field of profile control of oil reservoirs. The composite profile control method for the middle-high permeability oil reservoirs is characterized in that the method comprises the following steps that 1, tracer agent detecting is conducted on a target block, and the waterline advance speed is determined; 2, polymeric microspheres are injected into a water injection well; 3, formation water is injected into the water injection well; 4, oil wells are selected according to the waterline advance speed of oil wells in the target block; 5, biopolymer solutions are injected into the selected oil wells; and 6, the oil wells injected with the biopolymer solutions are started up for production after being shut down for 10 d-20 d, and the rest of oil wells conduct normal production. The composite profile control method for the middle-high permeability oil reservoirs has the advantages of being wide in oil reservoir application range, good in plugging and adjusting effect and long in profile control validity period; the used profile control agents are small in using amount, low in cost and high in high-temperature resistance, salt resistance and stratum adaptability; thus, the composite profile control method can be widely applied to the technical field of water shut-off and profile control of the middle-high permeability oil reservoirs.

The invention relates to the technical field of through casting coring of an oil field production well, in particular to a through casting side wall penetrating coring tool. The Through casting side wall penetrating coring tool comprises a radial horizontal drilling guide mechanism, and further comprises a casing windowing mechanism and a coring mechanism. The radial horizontal drilling guide mechanism comprises a hydraulic anchor and a guider, the lower end of the hydraulic anchor is connected with the guider through an upper connector, a sealing base is designed on the inner wall of the upper connector, and a sidewall contact device and a straightening mechanism are arranged on the side wall of the lower end of the guider. The through casting side wall penetrating coring tool can penetrate through a casting for coring work of orientating and deep penetrating, coring construction is easy, convenient, low in cost, safe and reliable, the adaptability to the stratum is high, and the coring yield rate is high. Taken rock cores are regular, lithology and oiliness observation can be visually carried out, lithology, electrical property, physical property and oiliness analysis and tests can be carried out with the help of instruments, the porosity, the permeability and other reservoir parameters are obtained, and the tool has direct guiding significance on reservoir assessment.

The invention discloses a controllable reinforced concrete strong frozen pile continuous wall and a construction method thereof. The controllable reinforced concrete strong frozen pile continuous wallis composed of reinforced concrete strong frozen piles and inter-pile frozen soil, wherein the reinforced concrete strong frozen piles and the inter-pile frozen soil are distributed at intervals; each reinforced concrete strong frozen pile comprises concrete, a reinforcement cage, a U-shaped freezer and a heat transfer steel plate. The construction method comprises the following steps: (A) preparing a drilling site and a hole site; (B) drilling to the bottom, and preparing for processing the reinforcement cage and the U-shaped freezer; (C) lowering the U-shaped freezer and the reinforcement cage; (D) preparing low-temperature early-strength high-performance concrete; (E) pouring strong frozen pile concrete; (F) forming the reinforced concrete piles; (G) mounting a refrigeration system; (H) actively freezing; (I) maintaining freezing; and (J) finishing the project. The controllable reinforced concrete strong frozen pile continuous wall fundamentally solves the problems and defects of poor water stopping effect, complex construction, low reliability and the like of various existing pile wall construction technologies, can be used for deep development of urban underground space, is beneficial to protecting underground water resources, and remarkably improves the safety and reliability of urban underground engineering construction.

The invention relates to a hydraulic grouting and pressure water test plug for drainage and relief in a high pressure borehole and belongs to borehole segmental isolating devices in the fields of grouting, pressure water test and the like. An eccentric reducing coupling is in threaded connection with a drainage and relief mechanism, a high pressure plugging tube is in threaded connection with thedrainage and relief mechanism, a plug capsule is in threaded connection with the drainage and relief mechanism, the upper end of a core tube is in threaded connection with the drainage and relief mechanism, the lower end of the core tube is in slidable connection with the lower end of the plug capsule, and a high pressure grouting tube is fixedly connected with the drainage and relief mechanism and is passed through the eccentric reducing coupling and the core tube. Repeated plugging of the plug capsule in a borehole and thorough drainage and relief actions are reliably achieved by using the pressure differential balance principle, full verification is acquired from engineering practice, and the hydraulic grouting and pressure water test plug for drainage and relief in the high pressure borehole is highly adaptive to formations and has a promising popularization and application prospect in the fields of grouting, pressure water test, splitting test, mine field gas drainage and the like.