13 results about "Liquid explosives" patented technology

The invention belongs to the field of oil and gas development and energy utilization, particularly relates to a detonation fracturing monitoring method and device based on tracer monitoring and distributed optical fiber sensing monitoring, and aims to solve the problems that in the prior art, detonation fracturing rapid dynamic change monitoring is insufficient, and exertion of the advantages of environmental protection and resource saving is restricted. The method comprises the following steps: calculating the volume of a hydraulic fracturing crack according to the volume of a flowback tracer agent; calculating the volume of the liquid explosive required by the hydraulic fracturing fracture volume; the liquid explosive with the adjusted viscosity is pumped into a hydraulic fracturing crack in the horizontal well; based on distributed optical fiber monitoring equipment, monitoring data obtained after the liquid explosive is detonated are obtained, inversion calculation is conducted on the monitoring data, the reservoir transformation effect of detonation fracturing is evaluated, and the stress-strain state of the reservoir after detonation fracturing is detected. According to the invention, real-time accurate monitoring of temperature, pressure and strain change in the detonation fracturing process is realized, and resource saving is realized.

The application discloses a heat-sealable flexible anti-static high-barrier shielding packaging material and a preparation method and application thereof, and belongs to the technical field of packaging materials. The packaging material comprises, from outside to inside, a PET layer, a black ink anti-static agent layer, an aluminum foil layer, a double-cold-cathode nylon layer and a permanent anti-static polyethylene layer; the permanent anti-static polyethylene layer is a three-layer co-extrusion structure comprising, from outside to inside, a polyethylene outer layer, a polyethylene middle layer and a heat-sealable anti-static layer. The product obtained by compounding the specific materials has excellent tensile property, flexibility and strength, and the inner surface resistance value of the heat-sealable flexible anti-static high-barrier shielding packaging material is 10 6 ‑10 10 Ω, which meets the national military standard GJB2605-96. The heat-sealable flexible anti-static high-barrier shielding packaging material can be used for packaging liquid explosive with high explosion, and then the liquid explosive is loaded into the warhead of a missile.

The present application belongs to the field of oil and gas development and energy utilization, and relates to a shale oil and gas stimulation method using chemical energy for in-situ deep stimulation of reservoirs. The method aims to solve the problems of single well production being lower than the economic development threshold, low recovery rate, obvious production capacity decline and waste of resources. The present application comprises the following steps: perforating a horizontal well, injecting high-viscosity slick water and large-diameter proppants to form a primary main seepage channel, and then injecting liquid explosives; pushing the explosives to the primary main seepage channel by low-viscosity slick water to form a secondary seepage channel; and then injecting low-viscosity slick water and small-diameter proppants for support. Finally, the well is put into production after well killing and liquid discharge. The present application combines the advantages of static hydraulic load and chemical energy high-energy fracturing to realize the construction of multi-stage seepage channels, significantly improving the efficiency and quality of deep shale oil and gas resource development. Through the detonation method, water resources can be significantly saved.

The present application belongs to the field of oil and gas development and energy utilization, and particularly relates to a detonation fracturing monitoring method and device based on tracer monitoring and distributed optical fiber sensing monitoring, aiming at solving the problem of insufficient monitoring of rapid dynamic changes of detonation fracturing in the prior art, which restricts the play of environmental protection and resource saving advantages. The present application comprises: calculating the hydraulic fracture volume according to the volume of the returned tracer; calculating the volume of the liquid explosive required by the hydraulic fracture volume; pumping the liquid explosive with adjusted viscosity into the hydraulic fracture in the horizontal well; based on the distributed optical fiber monitoring equipment, obtaining monitoring data after detonating the liquid explosive, evaluating the reservoir reconstruction effect of detonation fracturing by inversion calculation on the monitoring data, and detecting the stress-strain state of the reservoir after detonation fracturing. The present application realizes real-time and accurate monitoring of temperature, pressure and strain changes during detonation fracturing, and realizes resource saving.

The utility model discloses a metal surface heat treatment quenching device, include: the upper treatment box body and lower treatment box body of upper open, the lower treatment box body is installed below the upper treatment box body, is equipped with the baffle in the lower treatment box body symmetry, is equipped with the through slot between each baffle and passes through the lower treatment box body, is equipped with the filter part in the through slot, is equipped with the loading part on the upper treatment box body, is equipped with the moving mechanism that can drive the loading part longitudinal movement on the left and right sides of the upper treatment box body, is equipped with the conveying part on the left and right sides in the lower treatment box body, is equipped with the stirring part below in the upper treatment box body, is equipped with the clamping mechanism below the lower treatment box body, is equipped with the communicating part on the right side of the upper treatment box body, compared with prior art, can prevent the high temperature metal piece of quenching when entering quenching liquid after quenching liquid explosive boiling splashing, and can make the quenching liquid temperature even after quenching, and the impurity in quenching liquid is convenient to remove.

The present invention relates to the field of liquid explosives experimental technology, and discloses an experimental device for the impact detonation law of liquid explosives, including an experimental unit, wherein the experimental unit includes an experimental box, an experimental chamber, a restraint, an upper end cover and a plurality of electric probes, wherein the experimental chamber is opened on the side of the experimental box, the restraint is fixedly installed on the inner wall of the experimental chamber, the upper end cover is arranged on the top surface of the restraint, and the plurality of electric probes are symmetrically arranged on the two sides of the restraint, and a pressure relief unit is arranged on the side of the restraint. The present invention is designed by adjusting the spring preload, and the device can flexibly match the impact force generated by the explosion of explosives of different equivalents, ensuring that the sealing tube accurately opens the pressure relief channel within the pressure threshold, avoiding the response lag problem of the traditional fixed pressure relief structure, effectively preventing the restraint from being damaged by overpressure, and reducing the risk of secondary reactions, providing reliable safety protection for extreme working condition experiments.

Provided is an object detection method and system capable of increasing a detection rate for hazardous substances such as liquid explosives as well as existing explosives, the object detection method including (a) preparing an X-ray image of a subject, (b) calculating effective atomic number values (Zeff) by using the X-ray image, and (c) segmenting a target object image from the X-ray image by using the effective atomic number values and energy-band-based multi-energy image reconstruction.

According to the charging device for explosive production, through the stirring mechanism driven by the motor and the explosive injection process controlled by the electric telescopic rod, the charging efficiency of liquid explosives is remarkably improved, and the time and labor intensity of manual operation are reduced; the second stirring rod can shake in the stirring process through the hinge joint of the first stirring rod and the second stirring rod and the action of the spring, so that the stirring uniformity is enhanced, and full mixing of raw materials is ensured; the shovel plate is attached to the inner wall of the shell in a sliding manner, so that the raw materials are effectively prevented from being adhered to the inner wall of the shell in the stirring process, the waste of the raw materials is reduced, and the continuity of the stirring effect is ensured; and through the medicine sucking and discharging amount of the raw materials by the medicine injection mechanism, accurate control over the medicine charging amount is achieved, and the consistency and stability of the product quality are improved. The whole charging process is highly automatic, operation is easy and convenient, personal errors are reduced, and production safety is improved.

The invention relates to the technical field of feeding devices, and discloses a liquid explosive feeding device which comprises an outer shell and an inner shell arranged in the outer shell. A liquid explosive cavity is formed in the inner shell, an explosive inlet and an explosive outlet are formed in the two opposite ends of the inner shell respectively, and the explosive inlet and the explosive outlet are both connected with the outer shell and extend out of the outer shell. The explosive inlet is connected with a valve assembly, and the explosive outlet is connected with a metering assembly capable of metering the flow of the liquid explosive. A heat preservation cavity wrapping the inner shell is formed between the outer shell and the inner shell, an inlet and an outlet communicated with the heat preservation cavity are formed in the two opposite ends of the outer shell respectively, and the inlet can be communicated with an external heat source. By arranging the outer shell and the inner shell, the heat preservation cavity is formed between the outer shell and the inner shell, and the inlet of the outer shell can be communicated with an external heat source, so that a proper temperature can be maintained in the heat preservation cavity, and liquid explosives are prevented from being cooled in the conveying process.

The present invention belongs to the field of simulation tests, and specifically relates to a shale physical simulation test system that couples detonation fracturing with conductivity testing, aiming to solve the problems of lack of effective means to directly observe and evaluate the characteristics and expansion morphology of fractures after reservoir transformation, and the inability to accurately evaluate the effect of detonation fracturing. The present invention includes: preparing shale samples with prefabricated fractures, applying triaxial stress through a temperature-pressure assembly; implementing detonation fracturing with liquid explosives, and synchronously collecting acoustic emission data and scanning imaging; injecting fluid while maintaining confining pressure, collaboratively regulating the pressure at the fracture entrance and the base entrance, increasing the pressure after the pressure is balanced and monitoring the stable flow rate; calculating the fracture volume, expansion rate, and fracture conductivity. The present invention integrates the functions of dynamic monitoring of detonation fracturing, multi-physical field coupling simulation, and quantitative characterization of fracture conductivity characteristics, providing multi-dimensional and accurate experimental data support for the evaluation of shale reservoir transformation effects.

The application discloses a horizontal well oil layer liquid gun-explosive synergic fracturing method, which comprises the following steps: firstly, well washing is carried out to wash out the pollutants in the wellbore, and a liquid gun-liquid explosive ignition and explosion device and an ignition device are sequentially lowered to the designated position through the oil pipe; secondly, the prepared liquid gun, liquid explosive and multiple isolation liquids are sequentially injected into the wellbore target layer; thirdly, the prepared isolation liquid is injected into the well; the prepared liquid gun is injected into the well; finally, the isolation liquid is injected above the liquid gun again, the wellhead ignition device is arranged, and the kill fluid is injected above the isolation liquid. The ignition operation is completed, the liquid explosive of the liquid explosive explosion device is exploded first, a large amount of energy is generated by the liquid explosive, and a large number of micro cracks are fractured in the near wellbore zone; and the purpose of formation reconstruction is achieved.

The utility model relates to the technical field of coal mine deep hole blasting, discloses a charging device for coal mine deep hole blasting, and solves the problem that the charging device is not safe enough in the transportation and filling process. By means of the damping springs, the foam plate, the refrigeration plate, the draught fan, the temperature sensor and the pressure detector, a worker can conveniently place the explosive storage barrel storing liquid explosives in the placing frame by opening the movable door, and due to the fact that the damping springs and the foam plate are arranged in the placing frame, the explosives are prevented from being impacted, and the explosive charging safety is improved; a refrigeration plate and a fan are mounted in the cavity A, so that cold air enters the explosive storage barrel through a vent groove, an electric push rod drives an adjusting plate to move up and down, the cold air inlet amount is controlled, meanwhile, the internal environment of the explosive storage barrel is monitored in real time in combination with a temperature sensor and a pressure detector in the cavity B, and the stability of the explosive is prevented from being affected; once an abnormal condition is detected, the audible and visual alarm gives an alarm in time, and operation safety is guaranteed.

In the case of a liquid material contained in a container without having a shape, it is very difficult to accurately predict the type or physical properties of the liquid, so that there is a problem that the accuracy or detection rate is very low.SOLUTION: The present invention relates to a method and system for detecting an object capable of improving a detection rate of dangerous materials such as liquid explosives as well as existing explosives, and may include (a) preparing an X-ray transmission image of an object, (b) calculating an effective atomic number value (Zeff) using the X-ray transmission image, and (c) classifying a target article image from the X-ray transmission image using the effective atomic number value and reconstruction of a multi-energy image for each energy band.SELECTED DRAWING: Figure 1