42results about How to "Strong on-site practicability" patented technology

The invention discloses a multilayer-section fracturing technique pipe column comprising an oil pipe, a safe releasing sub, an ejector, a ball seat, an oscillator, a sand-oil blender, an oil pipe, a packer and a blank plug which are sequentially connected from top to bottom. A construction method of the multilayer-section fracturing technique pipe column comprises the following steps: putting the pipe column into a well, aligning the ejector with a target segment, feeding a seal ball through an opening of the well, positioning the seal ball on the ball seat so as to seal a liquid flow passage below the ball seat immediately, and performing abrasive perforating by use of the ejector; after abrasive perforating is finished, repeatedly leaching out the seal ball, lifting up the pipe column to seal the packer, injecting sand-laden fluid with a high sand ratio into the oil pipe in a low-displacement manner, and annularly ejecting pure liquid into an oil sleeve; performing a repeated 'lifting-descending' annular displacement step so as to form pulse cycles so as to control down-hole sand concentration in real time, so that temporary blockage of a proppant in a seam is realized, the static pressure in the seam is instantaneously improved, the crack complexity is further improved, and the purpose of improving the well yield through complicated seam-net fracturing is achieved; and after the construction is finished, lifting the pipe column to a next target segment, and repeating the construction process.

The invention provides a prediction method and exploration method of geological sweet spots of a reservoir of inter-salt shale series of strata and relates to the field of petroleum survey. The prediction method comprises the following steps: sampling different shale series of strata in the inter-salt shale series of strata to determine the rocky lithofacies of the shale series of strata; samplingthe shale series of strata with the rocky lithofacies of dolomite to determine the content of organic carbon, vitrinite reflectance, porosity, permeability, flowable pore throat radius, density, structure, soundwave, flowable oil mass heat releasing hydrocarbon and oil saturability index, wherein the rocky lithofacies, hydrocarbon source condition, storage and gathering condition and oil containing characteristic are met; and obtaining the sweet spots of the reservoir of inter-salt shale series of strata and the positions thereof and comparing the prediction result with the exploration result, wherein the relative error is smaller than 20%. The method has relatively high prediction precision and high field practicality. The method applied to exploring the geological sweet spots of the reservoir of inter-salt shale series of strata has relatively excellent field practicality.

The invention provides a polyurethane foamed material, and a preparation method and packing method thereof. The polyurethane foamed material includes 0.1-2 parts by mass of a microcapsule coated catalyst, 10-60 parts by mass of polyester polyols and / or polyether polyols, 0.5-3 parts by mass of a foam stabilizer, 1-20 parts by mass of a flame retardant, 30-100 parts by mass of polyisocyanate, and 5-40 parts by mass of a foaming agent. The provided polyurethane foamed material is short in curing time, and can meet demands of blasting borehole packing construction; and the foamed material, the preparation method and the packing method are simple and convenient in operation, especially the method for packing the foamed material in boreholes, which is strong in field practicality and especiallysuitable for the blocking of small diameter boreholes such as tunnel excavation, building demolition, vertical blasthole and underwater blasting in well lanes.

The invention discloses a modular power supply scheme automatic-generation method based on the AR technology and the VR technology, and belongs to the technical field of power distribution. The method comprises the steps of integrating the basic databases of a power grid, acquiring the architecture diagram and the openable capacity of the power grid, and ensuring the availability of a power supply point; subjecting a power supply scheme to modular refinement and typesetting, and setting the parameters of options in each type and calibrating the parameters so as to form system point selection parameters; importing the architecture diagram and the openable capacity data of the power grid into a program, and compiling the power supply scheme and a support drawing in cooperation with the system point selection parameters; and displaying the power supply scheme and the support drawing in the 3D form based on a virtual reality module. The related system of the above method comprises an inputting module, a checking and reminding module, a drawing editing module and a virtual reality module, wherein the above modules are sequentially connected. The method is high in efficiency, formal in manufacture, strong in scheme depth property and good in interactivity. Based on the method, construction problems can be found out more quickly and more conveniently. Therefore, the requirements of users in rapid power transmission can be met.

The invention discloses a continuous natural gamma logging while drilling instrument and a logging method thereof. The continuous natural gamma logging while drilling instrument is mainly composed of four parts, i.e., a rock debris collector, a natural gamma sensor, an access integrated logging instrument and natural gamma signal acquisition software, wherein the rock debris collector is designed according to onsite well conditions and project design requirements and realizes rock debris quantitative continuous collection and automatic updating functions so as to enable the natural gamma sensor to perform continuous measurement on underground rock debris. According to the invention, real-time detection is performed through the natural gamma sensor, detection signals are input to the integrated logging instrument, lag depth correction and data acquisition processing are carried out, a real-time curve and real-time data can be output, a reference basis is provided for geological technical personnel in lithology identification, stratum comparison and horizon sticking work, and the exploration efficiency is improved.

The invention provides a movable blasting protection cover plate and belongs to the technical field of blasting construction. The movable blasting protection cover plate comprises a cover plate assembly, a supporting frame and sliding rail assemblies. The material of the movable blasting protection cover plate provided by the invention is a conventional material commonly used on a construction site, and the material is convenient to get. Meanwhile, the material of the movable blasting protection cover plate can also be gotten from remaining or wasted materials to achieve the effect of changingwaste into valuable on the site, and the materials can be repeated used. Secondary utilization of the materials is ensured. Waste of the materials is reduced. The movable blasting protection cover plate is an independent unit and can be independently used. The multiple independent units can also be combined for use, and the site practicality is high. The movable blasting protection cover plate can be quickly moved and installed, and is quick in disassembling and assembling, reusable, convenient to construct on site and capable of protecting the safety of surrounding construction personnel tothe maximum extent.

The invention relates to a shielding suit complete-set device for measuring step voltage and contact voltage. The shielding suit complete-set device comprises a shielding suit; the shielding suit includes a right foot insulating boot part, a left foot insulating boot part and a glove part; an inter-electrode voltage measuring module (2) is fixed on the shielding suit; the inter-electrode voltage measuring module (2) is provided with three signal input ports and a signal output port; and the three signal input ports are a first signal input port, a second signal input port and a third signal input port. The device can be applied to the step voltage and contact voltage signal measurement in power system ground grid comprehensive evaluation and measurement. The device has high integration degree, can accurately measure all step voltage and contact voltage in a grounding power grid region under a grounding power grid comprehensive evaluation test condition or direct current ground loop grounding operation mode.

A multifunctional tool kit with functions of a portable power source and a light source comprises a tool kit body and a tool kit cover on the tool kit body. A handle is disposed on the tool kit cover. A foldable support arm is disposed in the tool kit body. The lower end of the foldable support art is connected with the inner side of the tool kit body. The upper end of the foldable support arm is connected with a solar panel. A power supply and a power supply output module connected with the power supply are disposed in the tool kit body. A low-voltage charging groove and tool slots for placing tools are formed in the tool kit body. A lamp strip is further disposed on the outer side of the tool kit body. A circuit switch is disposed on the circuit of the lamp strip. An LED tool handle is disposed in the tool kit body. The multifunctional tool kit has the advantages that the black tool kit design and layered arrangement are used, natural energy is utilized, the tool kit gets rid of the dependence on field environments, and the tool kit is energy saving and environmental friendly, convenient and efficient, and high in field practicality.

The invention relates to a ground pipe network and underground oil reservoir complex system production optimization method. The method includes the steps of selecting an offshore oil field group and an oil field block which need to be subjected to injection-production system adjustment; establishing a multi-stage progressive production gathering and transportation structure model of the offshore oil field group; establishing a ground pipe network and underground oil reservoir complex system production optimization mathematical model; arranging oil field field statistical data or finite oil reservoir numerical simulation results to form time series data, and generating sample points required for training and verifying a deep learning model; establishing an oil reservoir numerical simulationagent model based on a long-term and short-term memory network, and performing training and parameter adjustment; performing optimization solution based on a long-term and short-term memory network agent model and a covariance matrix adaptive evolution strategy; and verifying the injection-production system optimization adjustment effect of the offshore oil field group. According to the ground pipe network and underground oil reservoir complex system production optimization method, an injection-production system of the multiple oil field blocks in the offshore oil field group can be rapidly and comprehensively optimized under a plurality of constraint conditions such as offshore facility liquid volume capacity limitation and the like.

The invention provides a rotatable-nozzle-type double-cluster water jet fracturing tubular column and a fracturing method. Archimedes double-helix structures are designed in inner cavities of conventional water ejectors structurally, four spherical nozzles are distributed on a double-helix groove of an inner cavity of each ejector body, the flowing state and the flowing direction of fluids with sand are changed to enable the fluids to evenly enter each nozzle, the problem of incapability of adjusting the orientation of nozzles of double-cluster water ejectors of horizontal wells is solved effectively, the problem of unevenness in concentration, flow and pressure of the sand between the upstream nozzles and the downstream nozzles of the bottom-packer-dragging double-cluster water jet fracturing tubular column is also solved, and early failure of some ejector due to uneven washout of the upstream ejectors and the downstream ejectors of the bottom-packer-dragging double-cluster water jet fracturing tubular column is prevented effectively, so that fracturing success rate of directional ejection holes of the double-cluster water jet fracturing tubular column is increased greatly, on-site practicability is high, application effect is remarkable, and the rotatable-nozzle-type double-cluster water jet fracturing tubular column is applicable to bottom-packer-dragging graded double-cluster water jet fracturing process of the horizontal wells.

The invention relates to a device and method for quickly calibrating a mechanical tensiometer. The device comprises a connecting assembly, a sensor, a to-be-measured rope, a grooved rail, a fasteningassembly, a pulley assembly and a weight. The grooved rail is horizontally arranged; the connecting assembly is of an L-shaped structure and comprises a first side plate and a second side plate whichare perpendicular to each other, and the first side plate of the connecting assembly is attached to and fixed to one end of the grooved rail; the pulley assembly is fixed to the other end of the grooved rail; the bottom of the fastening assembly is fixedly located in the middle of the grooved rail; a square groove is formed in the top of the fastening assembly; the second side plate of the connecting assembly is perpendicular to the grooved rail and used for being fixedly connected with one end of the sensor; the other end of the sensor is fixedly connected with a to-be-measured rope; the to-be-measured rope penetrates through the square groove of the fastening assembly and is fastened to the fastening assembly; the to-be-measured rope changes to extend in a vertical direction through thepulley assembly; the weight is fixedly connected to the tail end of the to-be-measured rope; after being installed, the to-be-measured rope is just tangent to the bottom of the square groove of the fastening assembly and the pulley assembly.

The invention relates to a simple electromagnetic force wiring device. The simple electromagnetic force wiring device is characterized in that the simple electromagnetic force wiring device comprisescomprises a power supply, an electromagnetic generation assembly and a wiring assembly, the electromagnetic generation assembly is separately connected with the power supply and the wiring assembly, the wiring assembly comprises a metal binding post used for being externally connected with a metal wire and a wiring terminal making contact with grounding flat iron of power equipment, the metal binding post is connected to the wiring terminal, and the power supply current passes through the electromagnetic generation assembly and generates magnetic attraction force on the wiring terminal. The simple electromagnetic force wiring device has the beneficial effects that the wiring terminal generates magnetism through the magnetic force capable of being switched on and off, tight contact (approximate face-to-face contact) between the wiring terminal and a contact point is achieved, meanwhile, wiring is very flexible and convenient to fix or detach, the working efficiency is greatly improved,and the field practicability is very high.

The invention provides a stay wire bending device and a use method thereof. The stay wire bending device is characterized by comprising a first bracket and a second bracket; and the first bracket is hinged to the second bracket, the first bracket is rotatably connected with a first rotating wheel, the second bracket is rotatably connected with a second rotating wheel, and an interval is formed between the first rotating wheel and the second rotating wheel. By means of the stay wire bending device, construction time can be saved, time and labor are saved, the fabrication cost is low, field practicability is high, and the stay wire bending device is easy to operate, high in safety coefficient and good in application effect.

The invention relates to a novel full-sealed electromagnetic shielding impedance box. The novel full-sealed electromagnetic shielding impedance box comprises a box body and a foundation, wherein the outer side of the foundation is respectively provided with a grounding end, a foundation outer side measurement end coaxial cable jack and a foundation outer side signal end coaxial cable jack in a circumference direction, the box body comprises an electric field shielding cover and a magnetic field shielding cover which are sleeved with an interval, the electric field shielding cover is arranged at the outer side of the magnetic field shielding cover, intervals are arranged between the top portion and circumference of the magnetic field shielding cover and the electric field shielding cover, and bottom portions of the electric field shielding cover and the magnetic field shielding cover are respectively provided with an opening. The method is more applicable to AC high voltage signal measurement in complex on-site test environments and can realize long-time measurement without influence of external factors such as, an electromagnetic environment, rain, snow, dust storm, on-site wiring and disposing position.

The invention discloses an oil extraction transition joint for a transformer or a reactor. The oil extraction transition joint comprises an oil extraction joint body. The oil extraction joint body comprises an oil outlet hole main valve, an oil extraction pipe and an oil outlet head and further comprises a transition joint body. The oil extraction joint body is sleeved with the transition joint body. The transition joint body comprises a hollow cylinder structure joint body, a transition rubber sleeve and a hard thin tube, wherein the transition rubber sleeve and the hard thin tube are arranged in the hollow cylinder structure joint body. According to the oil extraction transition joint, after the transition joint of the transformer or the reactor is unscrewed, the transition joint body isin butt joint with the original position of the oil extraction joint body, the oil extraction pipe is hermetically connected through the coating of a connection cavity, and the oil outlet head is hermetically coated through the transition rubber sleeve, so that oil outlet holes can produce oil in a sealed state, zero pollution of an oil sample can be realized, the working process is neat and orderly, the use is flexible and convenient, and the working efficiency is greatly improved.

The invention discloses a hydraulic device of a transformer substation cable drum carriage. The hydraulic device of the transformer substation cable drum carriage comprises an oil tank (1), wherein the oil tank (1) is connected with a manual one-way quantitative hydraulic pump (2) through an oil pipe. The hydraulic device of the transformer substation cable drum carriage is characterized in that the manual one-way quantitative hydraulic pump (2) is respectively connected with a pressure release valve (3) and a two-station two-way control valve (4) through oil pipes; the two-station two-way control valve (4) is respectively connected with two current regulating valves (5) through oil pipes; each current regulating valve (5) is connected with an oil cylinder (6) through an oil pipe; the oil cylinder (6) is connected with the oil tank (1) through the two-station two-way control valve (4) and an oil pipe. The hydraulic device of the transformer substation cable drum carriage is simple and practical in structure, a cable can be rolled and lifted safely and reliably, and the safety and the reliability of power supply are ensured.

The invention relates to a harmonic source injection based method of estimating installed capacity of a parallel APF (active power filter). The method is provided by considering a load harmonic difference before and after compensation caused by system impedance. The method includes: establishing system side and load side Thevenin equivalent models from a point to be accessed, of the APF; solving system side and load side Thevenin equivalent parameters by means of a harmonic source injection method; calculating the capacity of the parallel APF through the models and the parameters. The method is low in implementing cost, has low error and has great field applicability.

The invention provides a mining surrounding rock fracture sliding starting condition and instability process analysis method and system, and relates to the technical field of mining engineering dynamic disaster prediction and prevention. The method and system can effectively predict dynamic disasters and greatly reduce the occurrence frequency and hazard degree of deep mining dynamic disasters, and is high in field practicability. According to the method, vertical fracture and horizontal action sliding of an immediate roof and / or an old roof corresponding to a goaf are / is used as judgment bases to analyze the instability state of mining surrounding rocks; the method specifically comprises the steps that a plurality of force sensors, acoustic emission monitoring equipment and micro-seismicsensors which are connected with a monitoring center are arranged in the immediate roof and / or the old roof and are used for collecting the real-time horizontal acting force of the position where thesensors are located and calculating original data needed by real-time vertical fracture energy; and the monitoring center is used for processing the collected data and judging whether early warning iscarried out or not according to a processing result. The technical scheme is suitable for the process of monitoring the collapse and instability of the surrounding rock.

The invention discloses a three-phase inconsistency protection test box for a circuit breaker body, which relates to the field of power system relay protection acceptance and regular inspection work. The box includes three liquid crystal display timers, and the display part is embedded in a panel for external display. Each liquid crystal The display timer includes a pair of power contacts, a pair of start-up contacts and a pair of stop-watch contacts. There are three pairs of start-up jacks and three pairs of stop-watch jacks on the panel, and each pair of start-up jacks is connected to a pair of Open meter contact, each pair of stop meter jacks is connected to a pair of stop meter contacts; there are four jacks THG, THA, THB, THC and three buttons STA, STB, STC on the panel, inside the THG jack It is connected to the same end of the three buttons, and the three jacks of THA, THB, and THC are respectively connected to the other end corresponding to the three button switches of STA, STB, and STC; the panel is also equipped with a power switch and a grounding jack for the test box shell. AC 220V power supply is adopted. The invention improves the efficiency of regular inspection of protection, shortens the maintenance time during power outages, and enhances the operation reliability of the power grid.

The invention provides a method for selecting a modularized power supply scheme. By modularizing the two-way supply and demand standards, summarizing and classifying them, performing step-by-step matching, and then summarizing and fine-tuning, the power supply scheme that meets customer requirements is finally formulated efficiently and conveniently. The depth of the power supply scheme designed by the method of the present invention is improved, which is convenient for customers to design and construct, ensures high quality and high standards of customer engineering, and can ensure the safety and strength of the power grid after being connected to the power grid; it not only ensures the important elements and requirements of the scheme Nothing is missing, and it also provides the best reference for the design.

The invention provides an oil extraction and slag removal method and system for a vertical tar-ammonia water separating process. The system comprises a mechanical slag scrapping tank, a tar-ammonia water separating tank used for receiving a mixture of tar, ammonia water and small-granule tar slag obtained in primary separation, a tar slag pump used for extracting the small-granule tar slag and the tar at the bottom of the tar-ammonia water separating tank, a secondary slag removal apparatus used for receiving the small-granule tar slag and the tar extracted from the bottom of the tar-ammonia water separating tank through the tar slag pump and carrying out secondary separation on the small-granule tar slag and the tar, a tar slag bucket used for receiving large granule tar slag obtained in primary separation and small-granule tar slag obtained in secondary separation and a tar intermediate tank used for receiving tar discharged from the secondary slag removal apparatus and having undergone secondary separation. The system has the advantages of convenience in extraction of the tar, good tar slag removal effects and capacity of thorough discharge of the small-granule tar slag from the system, so blockage of the system is avoided and production of the system is continuous and stable.

The invention discloses a modular power supply scheme automatic-generation method based on the AR technology and the VR technology, and belongs to the technical field of power distribution. The method comprises the steps of integrating the basic databases of a power grid, acquiring the architecture diagram and the openable capacity of the power grid, and ensuring the availability of a power supply point; subjecting a power supply scheme to modular refinement and typesetting, and setting the parameters of options in each type and calibrating the parameters so as to form system point selection parameters; importing the architecture diagram and the openable capacity data of the power grid into a program, and compiling the power supply scheme and a support drawing in cooperation with the system point selection parameters; and displaying the power supply scheme and the support drawing in the 3D form based on a virtual reality module. The related system of the above method comprises an inputting module, a checking and reminding module, a drawing editing module and a virtual reality module, wherein the above modules are sequentially connected. The method is high in efficiency, formal in manufacture, strong in scheme depth property and good in interactivity. Based on the method, construction problems can be found out more quickly and more conveniently. Therefore, the requirements of users in rapid power transmission can be met.

The invention provides a method and system for analyzing the sliding start conditions and instability process of mining surrounding rock fractures, and relates to the technical field of prediction and prevention of mining engineering dynamic disasters, which can effectively predict dynamic disasters and greatly reduce the frequency and harm of deep mining dynamic disasters The degree of site practicability is strong; this method uses the vertical fracture and horizontal sliding of the direct roof and / or old roof corresponding to the goaf as the judgment basis to analyze the instability state of the surrounding rock; specifically: in the direct A number of force sensors, acoustic emission monitoring equipment and microseismic sensors connected to the monitoring center are set in the roof and / or the old roof to collect the real-time horizontal force at its location and the raw data needed to calculate the real-time vertical fracture energy ; The monitoring center is used to process the collected data and judge whether to give an early warning according to the processing result. The technical solution provided by the invention is suitable for the monitoring process of surrounding rock collapse and instability.

The invention provides a rotatable-nozzle-type double-cluster water jet fracturing tubular column and a fracturing method. Archimedes double-helix structures are designed in inner cavities of conventional water ejectors structurally, four spherical nozzles are distributed on a double-helix groove of an inner cavity of each ejector body, the flowing state and the flowing direction of fluids with sand are changed to enable the fluids to evenly enter each nozzle, the problem of incapability of adjusting the orientation of nozzles of double-cluster water ejectors of horizontal wells is solved effectively, the problem of unevenness in concentration, flow and pressure of the sand between the upstream nozzles and the downstream nozzles of the bottom-packer-dragging double-cluster water jet fracturing tubular column is also solved, and early failure of some ejector due to uneven washout of the upstream ejectors and the downstream ejectors of the bottom-packer-dragging double-cluster water jet fracturing tubular column is prevented effectively, so that fracturing success rate of directional ejection holes of the double-cluster water jet fracturing tubular column is increased greatly, on-site practicability is high, application effect is remarkable, and the rotatable-nozzle-type double-cluster water jet fracturing tubular column is applicable to bottom-packer-dragging graded double-cluster water jet fracturing process of the horizontal wells.

The invention discloses a versatile cable trench cover plate lifting vehicle of a transformer substation. The versatile cable trench cover plate lifting vehicle comprises a load-bearing base plate (3), a directional wheel (1), a universal wheel (2), a brake unit (4), a lifting vehicle cross beam (10), a lifting vehicle body (20), a material hanging hook (11) and a handrail (8), wherein the lifting vehicle cross beam (10) is connected with a hydraulic jack (12), the lower end of the hydraulic jack (12) is provided with a hydraulic jack operating opening (7), the lifting vehicle body (20) is provided with an operating rod inserting ring (21), and a jack operating rod (6) is inserted inside the operating rod inserting ring (21). By the aid of the versatile cable trench cover plate lifting vehicle, hurting of persons due to crashing can be effectively avoided when workers move a cable trench cover plate manually, the hidden danger of safety production can be eliminated, and the versatile cable trench cover plate lifting vehicle is high in site practicability; and simultaneously, the usage of the device can effectively eliminate damage of the cable trench cover plate during frequent opening and closing, so that the tripping of high-tension lines of the transformer substation, which is caused by the fact that various small animals enter a cable tunnel through the damaged cover plate, can be prevented, and the safety and the reliability of power supply can be effectively guaranteed.

The invention provides a nested module, a nested modular building structure using the nested module and a construction of the nested modular building structure using the nested module, wherein the nested building module comprises a plurality of sub-modules nested layer by layer; the adjacent sub-modules are slidably connected with each other, and when the nested module is used for building construction, the nested module is firstly hoisted to a preset installation height of a bearing structure; then the nested module slides to the preset installation position of the outermost sub-module, and the outermost sub-module is fixedly connected with the bearing structure; finally, each layer of sub-module sequentially slides to the preset installation position from outside to inside, and is fixedly connected with the bearing structure; according to the invention, the method has the advantages of being suitable for rapidly and efficiently carrying out modularized building construction, and hashigh construction efficiency and good economic benefit.

The invention relates to the technical field of multistage fracturing of oil fields, in particular to a sectioned fracturing method adopting coiled tubing dragging sand-blasting perforation and annulus sand-filling. The sectioned fracturing method comprises the steps of first, well dredging and second, tool connecting. According to the sectioned fracturing method adopting coiled tubing dragging sand-blasting perforation and annulus sand-filling, perforation and fracturing integration is achieved through a one-trip pipe column; and interlayer packing is carried out through a sand-filling mode of induction-type sand plugging, and accordingly, a sand-blasting perforation dragging sectioned fracturing technique in a small casing is achieved, namely, coiled tubing dragging for sectioned fracturing of the pipe column and annulus sand-filling for achieving the sectioned fracturing technique can be conducted in a phi 101.6 mm small-size tail tube in a 5.5-inch casing sidetrack drilling horizontal well through the coiled tubing dragging sand-blasting perforation and annulus sand-filling sectioned fracturing method. According to the method, packing operation can be completed without a packer, therefore, by adopting the method, the cost of the packer is saved, and accordingly the construction cost is reduced.