Device for determination of density of rocks crossed by borehole

FIELD: mining.

SUBSTANCE: invention can be used for determination of rocks density. Core of the invention is that a device for determination of density of rocks crossed by a borehole comprises a housing of the device accommodating a drive and electronics unit and articulated therewith a probe detector unit with a source and detectors of gamma-radiation arranged in it, a deflecting lever intended for pressing the probe detector unit to the well wall, the deflecting lever is installed with the possibility of rotation on an axle fixed on the housing of the device, and the device additionally comprises a power spring and a rope, which serves for compression of the spring, one end of which is rigidly fixed on the housing of the probe detector unit, and the other end is connected with the short arm of the deflecting lever, herewith between the long arm of the deflecting lever and the housing of the probe detector unit there is a thrust plank rigidly connected to the housing of the device.

EFFECT: technical result is the possibility of uniform pressing of an extendible detector probe to the well wall.

1 cl, 1 dwg

 



 

Same patents:

FIELD: transport.

SUBSTANCE: this invention can be used for roentgen control over luggage. This invention consists in placing the luggage seat in transfer flute with marking means. Said seat is tightly coupled with said flute and incorporates memory with flute code and unique ID code written therein to be read out. Luggage seat roentgenogram is received and evaluated at primary control station. Said ID code is identified to automatically compare seat roentgenogram with transfer flute. Said flute is displaced to extra control station to define flute ID code. Said seat roentgenogram related to transfer flute is displayed at extra control station.

EFFECT: well-coordinated transfer flute and roentgenogram.

8 cl, 3 dwg

FIELD: physics.

SUBSTANCE: inspection module container is sealed and is provided with an internal volume heating device. A channel for transmitting data between the inspection module and the control module of the hazardous substance detector is wireless. The inspection module is provided with an accumulator battery for powering a neutron generator, alpha- and gamma-ray detectors, electronic recording equipment using corresponding voltage conversion units; the electronic recording equipment in the housing of the inspection module is provided with protection from direct flow of monochromatic neutrons emitted by the neutron generator; the inspection module is provided with a light indicator, the on state of which indicates presence of neutron radiation generated by the neutron generator.

EFFECT: enabling operation of the device in the presence of precipitation, wider operating temperature range thereof, providing self-contained operation of the device, high reliability of operation of all systems thereof, providing radiation safety when operating the device.

6 cl, 2 dwg

FIELD: oil and gas industry.

SUBSTANCE: while forming radiation the source of charged particles - an accelerator- is placed outside the well, the radiation source is placed in the well and the beam is led to the radiation source along the pipe outputted from the well and connected to the accelerator.

EFFECT: expansion of functional capabilities and the application area for well logging by gamma and neutron radiation.

1 dwg

FIELD: physics.

SUBSTANCE: cargo (2) is illuminated with X-ray radiation with a first spectrum and the atomic number class to which the material in said cargo belongs is determined via high-energy differentiation. Furthermore, γ-radiation or neutron radiation, spontaneously emitted by the cargo is measured; the class of the spontaneous γ-radiation and/or neutron radiation of the material in the cargo is determined based on measurement of the spontaneous radiation and the class of the significance of the material of the cargo is determined based on the determined atomic number class and spontaneous radiation class.

EFFECT: enabling highly reliable detection of suspicious objects with a high atomic number.

14 cl, 4 dwg

FIELD: physics.

SUBSTANCE: pulsed neutron source is lowered onto the surface of an ore mass and activated; a radiation detector, previously shielded from neutrons, is then lowered at the same point and analytical radiation of the formed isotopes is detected, wherein a radiator, which is located in a protective collimator shield, which prevents direct action on the detectors, which jointly and simultaneously with the radiator are lowered onto a pre-levelled and bared assayed surface, and during operation of the pulse generator record spectra of gamma-radiation of inelastic scattering of fast neutrons, spectra of gamma-radiation of radiation capture of slow neutrons and the flux of scattered neutrons; at the end of the irradiation process, the collimator shield, along with the radiation source and detectors, is raised, moved and lowered such that the gamma-radiation detector is placed on the assayed surface which was exposed with maximum neutron flux density and spectra of gamma-radiation of the formed isotopes are recorded; the obtained measurement results are compared with results of similar measurements on a surface with known content of determined elements and having material composition which is averaged for the investigated object.

EFFECT: high quality of assaying mining and geological objects.

2 cl, 3 dwg

FIELD: measurement equipment.

SUBSTANCE: detector module for measurement of one or more radiation chips, and namely X-ray radiation, gamma-radiation or radiation of nuclear particles includes a detector unit consisting of a scintillation detector and a photodetector providing electronic pulses, which are in known connection with intensity of light generated with the scintillation detector; an analogue-to-digital converter (ADC) connected to the photodetector; at that, ADC converts an analogue output signal of the photodetector to a digitised radiation signal; an information processing device connected to ADC; at that, the information processing device implements a calibration, stabilisation and linearisation method of the digitised radiation signal, and a memory device for storage of a detector module position.

EFFECT: providing the possibility of easier and quicker processing and analysis of radiation signals when performing centralised measurement of one or more radiation types.

14 cl, 4 dwg

FIELD: physics.

SUBSTANCE: cylindrical slit-type screen for gamma-ray probing radioactive ore has a screening tube filled with lead, a handle with straps, wherein the screening tube filled with lead completely encircles a cylindrical block for detecting gamma-rays which is divided into two equal parts which are hinged onto an axle and mounted on two bearing posts, and on the opposite side of the axle, parts of the screening tube, upon closure thereof, are such that the edge of one part with a shaped protrusion enters the shaped recess of the edge of the other part, the bearing posts are also tied by a protective plate lying over the slit formed upon rotation of parts of the screening tube and allow overlapping of slits between the rotating parts; on each part of the screening tube there are rigidly attached lugs which are hinged by a pull rod to the lower end of spring-loaded rods passing through bushings with outlet into a hollow handle; the rods are fixed on spring-loaded prongs which are pivotally connected to a board on the outer side of the handle; after reaching the top position, when the pulling board is moved by fingers of one hand upwards to the hollow handle, the rods turn an act on the pull rods and part of the screening tube and they open, and the detector begins to pick up gamma-rays "without the screen"; by pressing the board to the hollow handle, the fixing prongs are deflected and the rods, under the force of the springs, drop and parts of the screening tube close, thereby enabling to pick up gamma-rays "with the screen".

EFFECT: design of a screen which enables gamma-ray probing of walls and roofs of excavations without shifting the position of the screen at the measurement point so that the entire probing process is carried out using one hand.

4 dwg

FIELD: machine building.

SUBSTANCE: plant includes crushing and gas evolution station; vacuum station connected to crushing station through valve and piping system also includes condensed gas deposition unit, non-condensed gas deposition unit and water decomposition unit for hydrogen isotope analysis, which are connected via piping and valves to crushing and gas evolution station. Besides, crushing and gas evolution station is made in the form of system of capsules connected to common pipeline, equipped with heater and made from non-magnetic material, heads from ferromagnetic material, which are arranged in them, and head movement means made in the form of magnetic driving mechanisms installed on outer side of capsules. Capsules of the station are equipped with valves and cascade of protective grids, and their common piping is equipped with pressure sensor.

EFFECT: enlarging functional capabilities of preparation plant of gas samples from fluid inclusions in rocks and minerals owing to increasing the number of prepared gases for analysis, and carrying out sample preparation in continuous and independent modes; increasing purity of prepared sample.

8 cl, 3 dwg

FIELD: physics.

SUBSTANCE: invention discloses a method of determining formation properties using two or more sets of data in which solutions corresponding to data sets reflect common and different properties. The method analyses sets of data and calculates distribution for common and different formation properties, from which formation properties are determined.

EFFECT: obtaining highly accurate data in one set of measurements such that the obtained numerous solutions follow from highly accurate while retaining a certain degree of independence.

19 cl, 4 dwg, 3 tbl

FIELD: mining engineering.

SUBSTANCE: there are simultaneously measured sections of heat neutron capture and record of gamma-quantum of natural radioactive background, and also of gamma-quantum generated at nuclear disintegration of activated oxygen in interval of time between two pulses of radiation of neutrons. Also, in the interval of time between two pulses of neutron radiation there is formed sequence of time windows whereat the time windows in interval of time from 0 to 6 msec upon pulse of neutron radiation are used for record by the INGK - PNGL - pulse neutron gamma-logging method, while the left time window till the next pulse of neutron radiation is used for record by methods of KNAM - ONAM - oxygen neutron activation method and GK - GL- gamma-logging. The methods ONAM and GL are separated due to division of received γ-quantum by energy. For record of γ-quantum from radioactive isotopes there is established a threshold of discrimination within the range from 2000 to 4000 keV, while for record of γ-quantum of natural radioactive background there is specified the threshold from 30 to 2000 keV.

EFFECT: upgraded accuracy and reliability of obtained results of exploration.

2 cl, 3 dwg

FIELD: geophysics.

SUBSTANCE: method includes feeding 5 portions of radon indicator in volume, exceeding volume of porous space of examined beds for depth of research zone in 40-80 times. Feeding of radon indicator is performed until receiving non-changing indications of intensiveness of gamma-radiation in all beds, i.e. until occurrence of balanced state of radon concentration in bed fluids. Value of remainder oil saturation coefficient of beds is determined from given mathematical expression.

EFFECT: lower costs, simplified operations, higher sensitivity, higher trustworthiness.

FIELD: mining.

SUBSTANCE: by structure complex of imitators consists of coaxially (one inside another) assembled thin wall tubes having common leak proof bottom in least of which well apparatus is installed. A row of pass-through apertures is made on each tube except the tube with the smallest diameter; the apertures are arranged in plane perpendicular to the axis of the tube at different distance from the tube bottom; also this distance is minimal for the external tube and maximal for the tube located next to the internal tube. Marks are made on the external tube; the marks indicate the level of immersion of the imitator complex in water for each point of control. Water fills the space between walls of the tubes through apertures in the tubes, when the facility is immersed in water alternately for each mark; this facilitates imitating various values of porosity coefficients.

EFFECT: decreased labour intensiveness at calibration, increased radiation safety.

1 dwg

FIELD: mining.

SUBSTANCE: equispaced low background chambers, consisting of layers of metals and/or liquid, absorbing external natural radioactive radiation, are placed on the earth surface. The residual gamma background is continuously measured inside the above chambers. Daily anomalies are separated in obtained variations of the gamma background by the method of Fourier analysis. Daily average anomalies of the gamma background are analysed if daily anomalies are available. When gamma background is raised more than 3σ and according to field displacement of the increased gamma background there is judgment of the place of change of stressed-deformed state of rocks for the nearest 1-9 days.

EFFECT: extension of functional capabilities.

2 dwg

FIELD: mining.

SUBSTANCE: ground atmosphere samples are taken through the system of filters. Content of radon is determined in the taken samples as per daughter products. Then aerosols sampled on the filters are analysed and disturbances of ore elements-indicators are determined. As per the spatially coinciding disturbances of ore aerosols and radon the conclusion on the location of the objects is made.

EFFECT: improving the accuracy of determination of disturbances, increasing prospecting efficiency.

2 dwg

FIELD: mining engineering.

SUBSTANCE: there are simultaneously measured sections of heat neutron capture and record of gamma-quantum of natural radioactive background, and also of gamma-quantum generated at nuclear disintegration of activated oxygen in interval of time between two pulses of radiation of neutrons. Also, in the interval of time between two pulses of neutron radiation there is formed sequence of time windows whereat the time windows in interval of time from 0 to 6 msec upon pulse of neutron radiation are used for record by the INGK - PNGL - pulse neutron gamma-logging method, while the left time window till the next pulse of neutron radiation is used for record by methods of KNAM - ONAM - oxygen neutron activation method and GK - GL- gamma-logging. The methods ONAM and GL are separated due to division of received γ-quantum by energy. For record of γ-quantum from radioactive isotopes there is established a threshold of discrimination within the range from 2000 to 4000 keV, while for record of γ-quantum of natural radioactive background there is specified the threshold from 30 to 2000 keV.

EFFECT: upgraded accuracy and reliability of obtained results of exploration.

2 cl, 3 dwg

FIELD: physics.

SUBSTANCE: invention discloses a method of determining formation properties using two or more sets of data in which solutions corresponding to data sets reflect common and different properties. The method analyses sets of data and calculates distribution for common and different formation properties, from which formation properties are determined.

EFFECT: obtaining highly accurate data in one set of measurements such that the obtained numerous solutions follow from highly accurate while retaining a certain degree of independence.

19 cl, 4 dwg, 3 tbl

FIELD: machine building.

SUBSTANCE: plant includes crushing and gas evolution station; vacuum station connected to crushing station through valve and piping system also includes condensed gas deposition unit, non-condensed gas deposition unit and water decomposition unit for hydrogen isotope analysis, which are connected via piping and valves to crushing and gas evolution station. Besides, crushing and gas evolution station is made in the form of system of capsules connected to common pipeline, equipped with heater and made from non-magnetic material, heads from ferromagnetic material, which are arranged in them, and head movement means made in the form of magnetic driving mechanisms installed on outer side of capsules. Capsules of the station are equipped with valves and cascade of protective grids, and their common piping is equipped with pressure sensor.

EFFECT: enlarging functional capabilities of preparation plant of gas samples from fluid inclusions in rocks and minerals owing to increasing the number of prepared gases for analysis, and carrying out sample preparation in continuous and independent modes; increasing purity of prepared sample.

8 cl, 3 dwg

FIELD: physics.

SUBSTANCE: cylindrical slit-type screen for gamma-ray probing radioactive ore has a screening tube filled with lead, a handle with straps, wherein the screening tube filled with lead completely encircles a cylindrical block for detecting gamma-rays which is divided into two equal parts which are hinged onto an axle and mounted on two bearing posts, and on the opposite side of the axle, parts of the screening tube, upon closure thereof, are such that the edge of one part with a shaped protrusion enters the shaped recess of the edge of the other part, the bearing posts are also tied by a protective plate lying over the slit formed upon rotation of parts of the screening tube and allow overlapping of slits between the rotating parts; on each part of the screening tube there are rigidly attached lugs which are hinged by a pull rod to the lower end of spring-loaded rods passing through bushings with outlet into a hollow handle; the rods are fixed on spring-loaded prongs which are pivotally connected to a board on the outer side of the handle; after reaching the top position, when the pulling board is moved by fingers of one hand upwards to the hollow handle, the rods turn an act on the pull rods and part of the screening tube and they open, and the detector begins to pick up gamma-rays "without the screen"; by pressing the board to the hollow handle, the fixing prongs are deflected and the rods, under the force of the springs, drop and parts of the screening tube close, thereby enabling to pick up gamma-rays "with the screen".

EFFECT: design of a screen which enables gamma-ray probing of walls and roofs of excavations without shifting the position of the screen at the measurement point so that the entire probing process is carried out using one hand.

4 dwg

FIELD: measurement equipment.

SUBSTANCE: detector module for measurement of one or more radiation chips, and namely X-ray radiation, gamma-radiation or radiation of nuclear particles includes a detector unit consisting of a scintillation detector and a photodetector providing electronic pulses, which are in known connection with intensity of light generated with the scintillation detector; an analogue-to-digital converter (ADC) connected to the photodetector; at that, ADC converts an analogue output signal of the photodetector to a digitised radiation signal; an information processing device connected to ADC; at that, the information processing device implements a calibration, stabilisation and linearisation method of the digitised radiation signal, and a memory device for storage of a detector module position.

EFFECT: providing the possibility of easier and quicker processing and analysis of radiation signals when performing centralised measurement of one or more radiation types.

14 cl, 4 dwg

FIELD: physics.

SUBSTANCE: cargo (2) is illuminated with X-ray radiation with a first spectrum and the atomic number class to which the material in said cargo belongs is determined via high-energy differentiation. Furthermore, γ-radiation or neutron radiation, spontaneously emitted by the cargo is measured; the class of the spontaneous γ-radiation and/or neutron radiation of the material in the cargo is determined based on measurement of the spontaneous radiation and the class of the significance of the material of the cargo is determined based on the determined atomic number class and spontaneous radiation class.

EFFECT: enabling highly reliable detection of suspicious objects with a high atomic number.

14 cl, 4 dwg

Up!