48results about How to "Increased penetration distance" patented technology

The invention discloses a microbial grouting anchoring method for grouting in a cavity and a microbial grouting anchoring structure. The method comprises the following steps that an anchoring base body is drilled, multiple sets of grouting pipes are installed in a cavity of a hollow anchoring rod, part of the grouting pipes extend to the bottom of the cavity, part of the grouting pipes extend outof the hollow anchoring rod from a side hole in the middle of the hollow anchoring rod, and the hollow anchoring rod is inserted into a drilled hole; grouting liquid is injected into the drilled holethrough the grouting pipes; and a fixed object is installed at the side wall of the anchoring base body, a nut is installed on the hollow anchoring rod, and anchoring is completed.

The invention discloses a microbial grouting anchoring method for forming a pipeline by arranging partition plates in a cavity and a microbial grouting anchoring structure. The method comprises the following steps: drilling a hole in an anchoring base body, installing a hollow anchoring rod in the drilled hole, arranging two partition plates in a hollow cavity of the hollow anchoring rod in a crossed manner along the axial direction so as to divide the hollow cavity into a plurality of pipelines for grouting, and arranging a transverse partition plate in the middle in the hollow cavity in theradial direction to block part of the pipeline, wherein the hollow anchoring rod is provided with a side hole communicated with a blocked pipeline; injecting grouting liquid into the drilled hole through a pipeline; and installing a fixed object on the side wall of the anchoring base body, installing a nut on the hollow anchoring rod, and finishing anchoring.

The invention relates to acid mixed solution, in particular to a chelating acid of sandstone for the yield increase of oil-gas fields. The technical scheme is that: the chelating acid is prepared from citric acid, citrate, ammonium salt, ethylene diamine tetraacetic acid and surfactant in a ratio of (1-25):(1-20):(1-20):(0.01-1):(0.01-1). The chelating acid has the advantages that: the pH of a chelating acid system is more than 5, so that the chelating acid has small corrosion to metal pipelines and drilling equipment; the chelating acid has high dissolution to the sandstone, and the dissolution rate of the sandstone is more than 10 percent; the chelating acid also can effectively avoid the generation of secondary sedimentation; and the acid has excellent sustained-release effect, and can enter a deep stratum to work.

The invention relates to a pseudorandom spectrum-spread electromagnetic wave tomographic imaging instrument and a method for achieving imaging. The imaging instrument comprises a pseudorandom sequence generator, a modulator, a power amplifier and a transmitting antenna which are sequentially connected, and further comprises a signal receiving antenna, a demodulator, a signal correlator and a signal strength estimator which are sequentially connected, wherein the signal correlator is connected with the pseudorandom sequence generator which is connected with a synchronous controller, and the synchronous controller is connected with a data processing host which is connected with a human-computer interface. Under the condition that conditions such as transmission energy, working frequencies and detected objects are basically the same, by means of the pseudorandom code spectrum-spread technology, the system can have high interference resistance, and the detection penetration distance can be increased to a certain extent.

The invention relates to an organic cross-linking acid system and its preparation method and application. The components of the organic cross-linking acid liquid system are: hydrochloric acid, organic acid, hydrofluoric acid or ammonium bifluoride, polymer thickener, organic acid cross-linking agent, and the rest is water; the preparation method includes: hydrochloric acid, organic acid, hydrogen Slowly add polymer thickener to the solution of hydrofluoric acid or ammonium bifluoride and water, then stir and dissolve at 600-650r / min to form a clear liquid, and let it stand for 2-4h to obtain thickened acid, and add the above-mentioned Organic acid cross-linking agent, stir for 1‑5min after adding, to obtain an organic cross-linking acid system. The organic cross-linked acid liquid system is used for acidizing acid fracturing of high-temperature carbonate rock or sandstone oil and gas reservoirs to increase production; after the hydrochloric acid in the system is consumed, the organic acid continues to react with the formation, so it penetrates more than the hydrochloric acid cross-linked acid system The longer the distance, the more pronounced the effect.

The invention provides a system and method for integrated purification of flue gas by ozone in cooperation with microwave-excited flyash to induce free radicals. Flue gas containing SO2, NO and HgO from a combustor is dedusted and cooled, and part of SO2, NO and HgO are pre-oxidized in a flue by ozone; persulfates are activated in a microwave spray reactor by microwave-excited flyash to generate hydroxyl and sulfate radicals which finally oxidize the rest of SO2, NO and HgO as well as NO2 and SO3 from pre-oxidization into a mixed solution of sulfuric acid, nitric acid and divalent mercury; the divalent mercury in the mixed solution enters a mercury separation tower to receive separation and recycling, while the sulfuric acid and nitric acid solution enters a neutralizing tower to generate ammonium sulfate and ammonium nitrate solution which finally enters an evaporative crystallization and separation tower, and solid ammonium sulfate and ammonium nitrate fertilizers are obtained by evaporative crystallization of a high-temperature flue gas waste heat utilization system. The system of the invention can provide efficient integrated desulfurization, denitrification and demercuration, the removal process is free of secondary pollution, and the system has a promising market application prospect.

The invention discloses a microorganism grouting and anchoring method and structure in which a partition plate is arranged in a cavity to form a pipeline. Two partitions are arranged to cross to divide the hollow cavity into multiple pipes for grouting. A transverse partition is arranged radially in the middle of the hollow cavity to block some of the pipes, and the hollow anchor rod is set on the side connected to the blocked pipe hole; inject the grouting fluid into the drill hole through the pipe; install the fixed object on the side wall of the anchor base, and install the nut on the hollow anchor rod to complete the anchor.

The invention relates to a novel modification system and process of a hot-dry-rock thermal reservoir, characterized by the combination of two stimulation measure processes, thermal stimulation and chemical stimulation. The process is characterized in that a naturally present fracture network is destructed by thermal stimulation to enhance permeability, partial minerals, scale and obstruction in shafts and fractures are dissolved by the chemical stimulation, and flow guiding capacity of the fractures is further improved. The repeating of the process enables a larger range of thermal reservoirs to be modified. By using the process, the problem of the prior art that after thermal stimulation, part of the fractures are closed along with the rise of the temperature of a cooling area and the problem that that a chemical stimulant disappears nearby an injection location during its excess speed of reacting with rock minerals at high temperature are solved, and the process enables greatly reduction in the risk of frequent microseism in a reservoir modification process when compared to traditional hydrofracturing. The process is widely applicable to the modification of hot-dry-rock thermal reservoirs.

The invention discloses an ultrasonic-assisted reservoir stratum chemical blockage removal experimental facility and an experimental method. The experimental facility comprises a rock core clamp holder, a ring compression feed device, an ultrasonic energy converter, an ultrasonic generator, a chemical reagent storage tank connected with a liquid inlet of the rock core clamp holder by a conveying pipeline, a water storage tank, an oil storage tank and a liquid container connected with a liquid outlet of the rock core clamp holder. The experimental method comprises the following steps of: 1, pretreating a tested rock core; 2, testing the initial permeability of the rock core through water drive; 3, polluting the rock core; 4, testing the permeability of the polluted rock core through the water drive; 5, performing an ultrasonic-assisted chemical reagent blockage removal experiment; 6, testing the permeability of the rock core subjected to the blockage removal through the water drive; 7,performing the ultrasonic-assisted chemical blockage removal experiment under the condition of ultrasonic oscillation with different frequencies and amplitudes; and 8, processing data. The ultrasonic-assisted reservoir stratum chemical blockage removal experimental facility has reasonable design, complete functions and high using effect, is easy and convenient to arrange and operate, and can realize the pulse fluctuation of the chemical blockage removal under the action of the ultrasonic oscillation.

The invention discloses a gas-liquid coaxial ejection liquid fuel electrostatic atomization nozzle. A needle-like corona charging electrode coaxial with a fuel corona charging chamber is placed in the fuel corona charging chamber, the right end of the fuel corona charging chamber is connected with an atomization swirler and a nozzle body which are coaxial with the fuel corona charging chamber, and the right end of the nozzle body is connected with a coaxial gas swirler. A left conical hole and a right conical hole which are coaxial and are communicated are formed right in the middle of the nozzle body. A conical atomization swirler is sleeved with the left conical hole of the nozzle body. The nozzle body is provided with a plurality of gas impact holes communicated with a gas inlet pipeline and the right conical hole of the nozzle body. The gas swirler is provided with a plurality of gas whirl flat holes communicated with the gas inlet pipeline and the outside. Corona discharge is carried out on the liquid fuel, the electrified liquid fuel is atomized through the static electricity and centrifugal force, the impact type auxiliary atomization is carried out on the liquid fuel through gas flow, the atomized drops interact with the air coaxially ejected after leaving the nozzle, and the combustion efficiency is improved.

The invention provides a magnetic acupuncture needle which comprises a magnetic core body and a magnetic sleeve with which the magnetic core body is sleeved. Magnetic induction intensity of the magnetic core body is larger than that of the magnetic sleeve, the magnetic core body is fixedly connected with the magnetic sleeve, the magnetic core body is rod-shaped, the magnetic core body and an N pole and an S pole of the magnetic sleeve are arranged in the axial direction, an N pole of the magnetic core body is close to the N pole of the magnetic sleeve, and an S pole of the magnetic core body is close to the S pole of the magnetic sleeve. According to the magnetic acupuncture needle, shapes of magnetic lines of force around the magnetic core body are improved through the magnetic sleeve where the magnetic core body is sleeved, the magnetic lines of force in the middle of the magnetic core body are gathered towards two ends of the magnetic core body and finally form a bundle shape at the two ends of the magnetic core body, the magnetic induction intensity of the ends of the magnetic core body is enhanced, the penetration distance of the magnetic lines of force at two ends of the magnetic core body is increased, and the magnetic acupuncture needle is suitable for performing magnetic acupuncture treatment on acupoints of the human body and is good in treatment effect.

An anion generator used in large space comprises a bridge rectification input circuit, a voltage-stabilizing integrated control circuit, a high-frequency transformer, an optocoupler voltage control circuit, a voltage-multiplying rectifier circuit, an anion release unit, a generator shell and a machine body shell. The bridge rectification input circuit, the voltage-stabilizing integrated control circuit, the high-frequency transformer, the optocoupler voltage control circuit, the voltage-multiplying rectifier circuit and the anion release unit are connected through wires and installed in the generator shell, and the generator shell is installed in the machine body shell. Due to combined action of the voltage-stabilizing integrated control circuit, the high-frequency transformer and the optocoupler voltage control circuit, stable and continuous high-frequency pulses are generated, the penetration distance of anions generated by follow-up circuits is greatly increased under the action of related circuits, work power is large, the anion release amount is large, the anion cast radius is long, high-concentration small-particle-size anions can be continuously released, and the anion generator can be used in large areas and space.