EA033551B1 - Method of measuring fluid electric conductance and fluid water content in a borehole and autonomous borehole resistivity meter-hydrometer therefor - Google Patents

Abstract

The invention relates to oil and gas producing industry and can be used in conducting geophysical investigations in horizontal and controlled directional operating oil wells. The technical result of the invention provides higher measurement accuracy. An autonomous resistivity meter-hydrometer comprises a power supply unit, an air tight housing, an air tight compartment being arranged in the upper part thereof comprising a measuring system, while in the lower part thereof along the housing axis first and second through windows of oval section are arranged forming a cylindrical channel. Between the windows inside the housing a through cylindrical channel of the resistivity meter is formed comprising the resistivity meter sensor made in the form of two coils and provided for measuring of fluid electric conductance in a borehole. While in the second through window positioned higher the first window along the housing axis the hydrometer sensor is arranged for measuring fluid moisture content in a borehole, wherein the hydrometer sensor is equipped with a temperature sensor.

Description

Technology area

The invention relates to the oil and gas industry and can be used when conducting geophysical surveys in horizontal and directional operating oil wells.

State of the art

The physical principle of operation of devices of this type is widely known in the prior art.

For example, a known device is an induction borehole resistivity meter (Equipment and equipment for researching oil and gas wells: Handbook / A.A. Molchanov et al. - M .: Nedra, 1987. - 224 p.), liquids of various salinity in the string and tubing of production and injection wells. The device uses an inductive transformer method for measuring the electrical conductivity of a liquid. In a liquid, an alternating electromagnetic field is excited by a coil, and the induced EMF is measured by the other coil, the value of which depends on the geometry of the coils, their mutual position and the electrical conductivity of the liquid between them. In this downhole tool, the coils are coaxially arranged as toroids. A measuring channel passes inside the coils, which is freely filled with the liquid in the well through the windows in the casing of the device. The first coil is powered by a high frequency current from the generator. A signal proportional to the conductivity of the liquid in the measuring channel is taken from the second coil.

Also known is the device of a dielectric moisture meter (Berliner MA Moisture measurements. M .: Energiya, 1973. - 400 s), based on the principle of differential measuring circuits, containing a frequency generator, to the outputs of which a model capacitor and a capacitor of the sensor's sensitive element are connected in series.

The closest analogue of the proposed invention is the downhole induction resistivity meter RU 2261992 C2 (publ. 10.10.2005, MKP Е21В 47/00, OJSC NPP VNIIGIS (RU), etc.), designed for non-contact measurement of the electrical conductivity of the well fluid.

The disadvantages of the considered devices is the error in measuring the specific electrical conductivity of the borehole fluid when the initial temperature of the borehole fluid changes.

The task of the proposed group is to develop an autonomous downhole resistivity and moisture meter with improved operational capabilities and measurement quality, ensuring the accuracy of measuring parameters in the well.

The technical result achieved when using the invention is to improve the measurement accuracy.

An additional technical result is an increase in the reliability of an autonomous downhole resistivity meter-moisture meter during operation, while simplifying its design.

The task and the required technical result are achieved due to the fact that the method for measuring the electrical conductivity of the fluid in the well consists in measuring the temperature of the fluid in the well using a temperature sensor and the electrical conductivity of the fluid in the well using a resistivity meter, while the measured temperature and electrical conductivity are recorded during the measurement. fluid, and the true value of the electrical conductivity of the fluid in the well is determined based on the measured temperature and electrical conductivity of the fluid in the well by the formula:

where a ₀₀ , a ₀₁ , a ₀₂ , a ₁₀ , a ₁₁ , a ₁₂ , a ₂₀ , a ₂₁ , a ₂₂ are the coefficients calculated during the calibration of the device in the operating temperature range;

T is the measured value of the fluid temperature;

G is the measured value of the electrical conductivity of the fluid;

S is the true value of the electrical conductivity of the fluid.

The specified technical result is also achieved due to the fact that the method for measuring the moisture content (percentage of water) of the fluid in the well, which consists in measuring the temperature of the fluid in the well using a temperature sensor and the percentage of water in the fluid in the well using a moisture meter, while in the process measurements record the measured temperature and percentage of water in the fluid, and the true percentage of water in the fluid in the well is determined based on the measured temperature and the percentage of water in the fluid in the well using the formula:

V = d ₀₀ + d _w T + d ₂₀ T ² + (d οι + du? + D21T ² ) L + (d02 + d ₁₂ T + d ₂₂ T ² ) L ² , (II) where d ₀₀ , d ₀₁ , d ₀₂ , d ₁₀ , d ₁₁ , d ₁₂ , d ₂₀ , d ₂₁ , d ₂₂ - coefficients calculated during the calibration of the device in the operating temperature range;

T is the measured value of the temperature of the fluid flow;

L is the measured moisture content of the fluid.

V is the true moisture content of the fluid.

The specified technical result is also achieved due to the fact that an autonomous borehole re-1 033551 zistivimeter-moisture meter for implementing the above disclosed methods contains a power supply unit, a sealed case, in the upper part of which there is a sealed compartment containing a measuring system, and in its lower part along the axis of the case, the first and second through windows of oval cross-section are located, forming cylindrical channels, while between the windows inside the case, a through cylindrical channel of the resistivity meter is formed containing Above the first, along the axis of the body, there is a moisture meter sensor designed to measure the moisture content of the fluid in the well, while the moisture meter sensor is equipped with a temperature sensor.

The sealed compartment is made with the possibility of accommodating microcontroller units, a modem temperature sensor for controlling the operation of the device, converting resistivity sensor signals and converting moisture meter sensor signals and flash memory, mounted on the same chassis, and the microcontroller unit is electrically connected to other units.

The resistivity meter sensor is electrically connected to the resistivity meter sensor signal conversion unit and is made in the form of primary and secondary coils located in the housing coaxially along the length of the resistivity meter channel.

The moisture meter sensor is electrically connected to the signal conversion unit of the moisture meter sensor and is made in the form of an external sensor for measuring capacitance using a bridge circuit.

The lower end of the housing is equipped with the first adapter connector connected through a common bus with the computer system.

The upper end of the housing is equipped with a second adapter connector connected through a common bus with the computer system.

At the lower end of the body there is a first fairing made with the possibility of rigid attachment to the lower part of the body.

At the upper end of the housing there is a power supply unit with a connector made with the possibility of rigidly attaching its lower part to the body, so that the second adapter connector of the case and the connector of the power supply unit are connected to each other.

The power supply contains a battery that is electrically connected to the power supply connector.

Brief Description of Drawings

The invention will be better understood from the description, which is not restrictive and given with reference to the accompanying drawings, in which:

FIG. 1 - shows a longitudinal section of an autonomous downhole resistivity meter-moisture meter.

FIG. 2 - shows a longitudinal section of the power supply.

FIG. 3 shows a block diagram of the measuring system of an autonomous downhole resistivity meter-moisture meter.

- frame; 2 - the first through window; 3 - second through window; 4 - sealed compartment; 5 - resistivity meter channel; 6 - moisture meter sensor; 7 - primary coil; 8 - secondary coil; 9 - the first transitional connector of the case; 10 - the second transitional connector of the case; 11 - the first fairing; 13 - power supply unit; 14 - power supply connector; 15 - through hole of the fairing; 16 - block of flash memory; 17 - microcontroller unit; 18 - modem block; 19 - block for converting signals of the resistivity meter sensor; 20 - block for converting signals from the moisture meter sensor; 21 - common bus; 22 - temperature sensor.

Implementation of the invention

An autonomous downhole resistivity meter-moisture meter, contains a power supply unit (13), a sealed casing (1), in the upper part of which there is a sealed compartment (4) containing a measuring system, and in its lower part along the axis of the casing there are the first (2) and the second ( 3) through windows of oval section, forming cylindrical channels, while between the windows inside the housing (1) a through cylindrical channel of the resistivity meter (5) is formed, containing the resistivity meter sensor, made in the form of two coils (7, 8) and designed to measure the electrical conductivity of the fluid in well, and in the second (3) through window, located above the first (2), along the axis of the body (1) there is a moisture meter sensor (6) designed for the moisture content of the fluid in the well, while the moisture meter sensor (6) is equipped with a temperature sensor (22 ).

The sealed compartment (4) is designed to accommodate the microcontroller (17) and modem (18) units for controlling the operation of the device, converting signals (19) from the resistivity meter sensor and converting signals (20) from the moisture meter sensor and flash memory (16) mounted on one chassis, wherein the microcontroller unit (17) is electrically connected to other units.

The above units are mounted on printed circuit boards.

The resistivity meter sensor is electrically connected to the signal conversion unit (19) and is made in the form of primary (7) and secondary (8) coils located coaxially in the housing along the length of the resistivity meter channel (5).

The moisture meter sensor (6) is electrically connected to the signal conversion unit (20) of the moisture meter sensor and is made in the form of an external sensor for measuring capacitance using a bridge circuit.

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The temperature sensor (22) is electrically connected to the microcontroller unit (17).

The lower end of the housing (1) is equipped with the first adapter connector (9) connected through a common bus (21) with the computer system.

The upper end of the housing (1) is equipped with a second adapter connector (10) connected through a common bus (21) to the computer system.

At the lower end of the housing (1), there is a first fairing (11) made with the possibility of rigid attachment to the lower part of the housing (1).

At the upper end of the housing (1) there is a power supply unit (13) with a connector (14), made with the possibility of rigidly attaching its lower part to the housing (1), so that the second adapter connector (10) of the housing and the connecting connector (14 ) of the power supply are connected to each other.

The power supply (13) contains a battery electrically connected to the power supply connector (14).

In the upper part of the power supply unit (13) there is a second fairing (not shown in Fig. 2), made with the possibility of rigid attachment to the power supply unit (13).

The first (11) and second fairings have the shape of a cone, at the top of each of which a through hole (15) is made perpendicular to the body axis.

An autonomous downhole resistivity meter-moisture meter works as follows.

The power supply unit (13) is connected to the upper part of the housing (1) of the resistivity-moisture meter using a threaded connection, so that the second adapter connector (10) of the housing and the connecting connector (14) of the power supply unit are connected to each other, and to the lower part of the housing ( 1) the resistivity meter, the first fairing (11) is connected using a threaded connection. The first fairing (11) facilitates better fluid flow around the tool in the well. Then a second fairing is connected to the power unit (13). After that, a cable is fixed in the through hole (15) of the second fairing (11) and lowered into the borehole, while the power of the computing system is provided by a battery located in the power unit using a common bus (21).

A special geophysical electric cable can be used as a cable, which performs the function of a cable and supply power to the descent instrument (which makes it possible to exclude the battery pack or charge the battery pack), as well as to transfer information recorded in the flash memory in real time for analysis by the operator at the wellhead well, that is, the operator at the wellhead with the help of the receiving device can observe the information coming from the sensors of the descent tools, which is simultaneously recorded in the flash memory of the devices and thus can make a prompt decision if necessary to change the well survey program (change in the descent rate, the moments of stopping the instruments, the immersion depth of the instruments and other parameters).

The first (2) and the second (3) through windows and channels of the resistivity meter (5) of the resistivity meter-moisture meter placed in the well are filled with borehole fluid. To measure the electrical conductivity of the fluid, the microcontroller (17) supplies a signal that connects power to the high frequency generator of the signal conversion unit (19) of the resistivity meter sensor from the battery via a common bus (21). The high-frequency generator excites an alternating magnetic field in the primary coil (7) of the resistivity meter sensor, and the EMF induced by the alternating magnetic field of the liquid is measured by the secondary coil (8). The received signal in the secondary coil (8) is amplified and rectified by means of an amplifier and a rectifier of the signal processing unit (19) of the resistivity meter sensor, and then fed to the analog-to-digital converter of the microcontroller (17), where it is digitized, and then written to the flash memory ( 16).

To measure the moisture content of the fluid in the well, the microcontroller (17) sends a signal that connects the power to the quartz generator of the frequency of the signal conversion unit (20) of the moisture meter sensor from the battery via a common bus (21). The crystal oscillator activates the measuring signal and the bridge capacitance meter circuit of the capacitive moisture meter sensor (6). The capacity of the moisture meter sensor (6) varies in proportion to the amount of water in the well. The capacitance of the sensor is compared with a reference capacitance by means of a bridge meter. The difference between the signals of the measured and reference capacitances is amplified and rectified by means of an amplifier and a rectifier of the signal processing unit (20) of the moisture meter sensor, and then fed to the analog-to-digital converter of the microcontroller (17), where it is digitized, and then written to the flash memory (16) ... The data from the temperature sensor (22) are transferred to the analog-to-digital converter of the microcontroller (17), where they are digitized, and then written to the flash memory (16).

The first (9) and second (10) adapters are intended for connection with other devices containing various sensors and supporting the operation on a common AMI bus.

To analyze the recorded data from the sensors of the resistivity meter and the moisture meter, the resistive meter-moisture meter is removed from the well, then an AMI bus connected to a personal computer is connected to a special connector of the power supply unit, in which a special program calculates the moisture content of the fluid and the electrical conductivity of the fluid based on the recorded data from the sensors of the resistivity meter and moisture

- 3 033551 Gomers, taking into account the initial temperature of the well fluid in accordance with formulas (1) and (2):

The coefficients a ₀₀ , a ^, a ₀₂ , a ₁₀ , a ₁₁ , a ₁₂ , a ₂₀ , a ₂₁ , a ₂₂ for formula (I) were selected empirically when setting up the device, which consists in calibrating the device on a special stand. By placing the device in standard solutions (sodium chloride) of various concentrations at different temperatures in the operating temperature range, readings of the resistivity meter are taken - the measured value of the electrical conductivity of the reference solution (Gij is the measured value of the electrical conductivity of the reference solution at the initial i-specific electrical conductivity of the reference solution and the j-temperature of the reference solution when setting up the device) in accordance with table. (1), while depending on the concentration of the standard solution, it has different initial specific electrical conductivity Si, measured under normal conditions.

Table 1

Initial specific electrical conductivity, Cm / m (Si) Reference solution temperature, ° C thirty 40 50 60 0.000005 Gn G-I2 θ13 Gi4 4.46 G ₂ i θ22 G ₂ 3 g ₂₄ 8.20 G31 θ32 G33 θ34 13.39 θ41 G ₄₂ g ₄₃ g ₄₄ 21.17 G ₅ 1 G52 θ53 G54 24.72 θ61 θ62 θ63 Ge ₄

In accordance with the table. 1 - G ₁₁ - measured value of the conductivity of the standard solution at the first initial specific conductivity of the standard solution and the first temperature of the standard solution in accordance with table. 1; G _{12 is the} measured value of the conductivity of the reference solution at the first initial conductivity of the reference solution and the second temperature of the reference solution in accordance with the table. 1; G ₁₃ is the measured value of the conductivity of the standard solution at the first initial conductivity of the standard solution and the third temperature of the standard solution in accordance with table. 1; G _{14 is the} measured value of the electrical conductivity of the reference solution at the first initial specific electrical conductivity of the reference solution and the fourth temperature of the reference solution in accordance with the table. 1, etc.

Then the coefficients b ₁ j, b ₂ j, b ₃ j are determined for each temperature value from the table. 1 by solving systems of linear equations:

6 66 b _2j £ Gtj + £ G? J + b _oj £ G? J = £ GfjSt | i = li = li = li = l + & v ₇ Σ ^ = v ^ v7 + b _O jXt = iGij = Y ^ G ^ -Sj (Bl)

66 b ₂ j У G7 + b-c У Gy + 6b _oj = У Sj i = ii = ii = i where b ₀ j, b ₁ j, b ₂ j are the coefficients for each temperature value (see Table 2) , Gij is the measured value of the electrical conductivity of the standard solution from the table. 1; S _i -specific electrical conductivity of the reference solution from the table. 1.

To determine the coefficients b ₀₁ , b ₁₁ , b ₂₁ , for a reference solution temperature of 30 ° C, the system of equations (III) is solved:

6 66 ^ 2i Y + btz Y + b _Oi Gii = G ^ Sj | i = it = li = ii = lb ₂ i Σ ^ = v G ?! + Bt G / i + b _O i Ef = i G; i = Σ / = v G ^ Si (III)

66 b ₂ i Gn + bts Gji + 6b ₀₁ = Y Sj i = ii = li = l where Zf = i = Gn + G21 + G ₃₁ + G ₄ i + G ₅₁ + G ₆ i, ΣΓ = ι ^ ί = 0.000005 + 4.46 + 8.20 + 13.39 + 27.72.

To determine the remaining coefficients b ₀ j, b ₁ j, b ₂ j, the system of equations (3) is similarly solved, while to determine the coefficients (for a temperature of 40 ° C) b ₀₂ , b ₁₂ , b ₂₂ in the system of equations (III) is used £ i = iGi2 - G-i2 ⁺ G22 ⁺ G32 + G42 + G52 + Ge2, to determine the coefficients (for a temperature of 50 ° C) b ₀₃ , b ₁₃ , b ₂₃ in the system of equations (III), Σ ₍ '= ι G _{; 3} - G ₁₃ + G ₂ 3 ⁺ G33 + G43 ⁺ G53 + Ges, and to determine the coefficients (for a temperature of 60 ° C) b ₀₄ , b ₁₄ , b ₂₄ in the system of equations (3), Σί '= ι Gj ₄ = G ₁₄ + G ₂₄ + 634+ g ₄₄ + g ₅₄ + G ₆₄ .

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table 2

Odds Reference solution temperature, ° C thirty 40 50 60 boj boi B02 Bos Bo4 Bts Bts B12 bi3 Bts b2i B21 B22 Brs Br4

Using the obtained coefficients by for each temperature value, by solving systems of linear equations, the coefficients a _{2i are} determined, where a _oi (^ o, Ot, a ₀₂ , ^ o, Ob ai ₂ , a ₂₀ , a ₂₁ , a ₂₂ ):

4 44 “2ί ⁶ ί +“ π Σ ^{+ αοί} Σ ⁼ Σ ^b ^ ^{} Tj} j = lj = lj = lj = la ₂ i Σ; = ι bj + Σ) = 1 bj + a _Qi Σ? _{= 1} bts = btsT; (IV) ^a 2i Σ; = v bt + a _lt Σ / = v bt + 4a ₀ ^ - ^ 7), where the bij are certain coefficients from Table. 2; a _2i , a _1i5 a _0i - coefficients for each value of the coefficient b ₂ j, bj b ₀ j, respectively; Tj is the temperature of the reference solution.

To determine the coefficients ^ ₀ , ^ v, 4+, the system of equations (IV) is solved:

4 44 “20 + a ₁₀ bgj + a ₀₀ b ^ j = b ^ Tj j = lj = l J = 1j = l“ 20 Σ) _{= 1} b ³ 0j + α10 Σ) = 1 b ³ j + α00 Σ) _{= 1} b _Qj = b _0J Tj (IV) ^τ ή «20 Σ / = ι b% j + α ₁₀ Σ) = ι b _oj + 4α ₀₀ = where Σ; = ι & ο ₇ + = b _O i + b ₀ 2 ⁺ b ₀₃ + b ₀₄ ; Tj = 30 + 40 + 50 + 60.

To determine the remaining coefficients a _2i , a _1i5 a _{0i, we} similarly solve the system of equations (IV), while determining the coefficients a ₁₀ , a ₁₁ , a ₁₂ in the system of equations (IV)

Bl i ' ⁼ bt + bl9 ^ ID13 + bld, 1 1 o ^ J- ¹ -m ^{ΊΊ vζ 10} and to determine the coefficients a20, a21, a22 in the system of equations (IV), we use Σ _ / = v ^ 2 / - b ₂ - i + b ₂₂ + b ₂₃ + b ₂ 4

To select the coefficients d ₀₀ , d ₀₁ , d ₀₂ , d ₁₀ , d ₁₁ , d ₁₂ , d ₂₀ , d ₂₁ , d ₂₂ when setting up the device for formula (II), a reference solution is used - a mixture of water with diesel fuel, which is prepared in appropriate proportions by thorough mixing on a specialized stand. By placing the device in standard solutions (a mixture of water with diesel fuel) of various concentrations at different temperatures in the operating temperature range, readings of the moisture meter are taken - the measured value of the percentage of water in the standard solution (Lij is the measured value of the percentage of water in the standard solution at the initial i-percent the water content in the reference solution and the j-temperature of the reference solution when setting up the device) in accordance with table. 3, while depending on the concentration of water in the standard solution, it has a different percentage of water in Vi, measured under normal conditions.

Table 3

Initial percentage of water in the standard solution (V),% Reference solution temperature, ° C thirty 40 50 60 0 Ln L12 L-13 Lu ten L21 L22 L ₂₃ L24 twenty L31 L32 L33 l ₃₄ thirty l ₄₁ L ₄ 2 L43 l ₄₄ 45 L51 L ₅ 2 L53 Lm 60 1-61 L.62 L ₆₃ C ₄

In accordance with the table. 3 L ₁₁ , is the measured value of the percentage of water in the standard solution at the first initial percentage of water in the standard solution and the first temperature of the standard solution in accordance with table. 3; L ₁₂ is the measured value of the percentage of water in the standard solution at the first initial percentage of water in the standard solution and the second temperature of the standard solution in accordance with table. 3; L ₁₃ is the measured value of the percentage of water in the reference solution at the first initial percentage of water in the reference solution and the third temperature of the reference solution in accordance with table. 3; L ₁₄ is the measured value of the percentage of water in the reference solution at the first initial percentage of water in the reference solution and the fourth temperature of the reference solution in accordance with table. 3, etc.

Then the coefficients b ₁ j, b ₂ j, b ₃ j are determined for each temperature value from the table. 3 by solving systems of linear equations:

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6 6 6 * _2J ς 4 + Σ 4 + Σ + ⁼ Σ ^L » ^Vi | ί = 1 ί = 1 ί = 1ί = 1 b ₂ j Σγ = 1 by + Σ £ = 1 by + b _O j Σγ = 1 by = Y by V) (V)

66

Ζ? 2 / Ljj + b- ^ j Y ^ Lij + 6b (y = Y, V (i = ii = ii = i where boj, bij, b ₂ j are the coefficients for each temperature value (see Table 2) , Lij is the measured value of the percentage of water in the standard solution from Table 3; V _i is the percentage of water in the standard solution from Table 3.

The coefficients b ₀ j, b ₁ j, b ₂ j (see Table 2) are determined by solving the system of equations (V) in the same way as when solving the system of equations (III).

The obtained coefficients bij for each temperature value by solving systems of linear equations determine the coefficients di, di, di (do, di, d2, do, di, d2, do, di, d ₂₂ ):

4 4 4 di Σ ^{+ dii} Σ ^b % ^{+ doi} Σ ⁼ Σ ^b ^ ^jTj Ij = lj = ij = ij = id _2i ΣΚι ^b iJ + du Σ} = ι btj + d _oi Σ) _{= 1} by = ΣΣ bijTj ( VI) d _2i Σ; = v bfj + d _u Σ) = v b ^ + 4d ₀ t = Y Tj, where the bij are certain coefficients from Table. 2; d _2i , d _1i , d _0i - coefficients for each value of the coefficient b ₂ j, b ₁ j, b ₀ j, respectively; Tj is the temperature of the reference solution.

The coefficients d _2i , d _1i , d _0i (d ₀₀ , d ₀₁ , d ₀₂ , d ₁₀ , d ₁₁ , d ₁₂ , d ₂₀ , d ₂₁ , d ₂₂ ) are determined by solving the system of equations (VI) in the same way as for solution of the system of equations (IV).

Experiments have shown that the claimed group of inventions improves the measurement accuracy due to the fact that when calculating the electrical conductivity of the fluid and the moisture content of the fluid, the initial temperature of the well fluid flow is taken into account, which ensures that errors are eliminated when the initial temperature of the well fluid flow changes.

Although the proposed group of inventions has been disclosed in detail above with reference to specific embodiments that appear to be preferred, it should be remembered that these embodiments of the invention are given only for the purpose of illustrating the invention. This description should not be considered as limiting the scope of the invention, since the ethanes of the described methods and devices by specialists in the field of physics, the oil and gas industry, etc. can be changed in order to adapt them to specific devices or situations, and not go beyond the attached claims. A person skilled in the art understands that within the scope of the invention, which is defined by the claims, various variations and modifications are possible, including equivalent solutions.

Claims (11)

CLAIM 1. An autonomous downhole resistivity meter-moisture meter, containing a power supply, a sealed housing, in the upper part of which there is a sealed compartment containing a measuring system, and in its lower part along the axis of the housing there are the first and second through windows of oval section, forming a cylindrical channel, while between the windows inside the housing, a cylindrical through-channel of the resistivity meter is formed, containing a resistivity meter sensor made in the form of two coils and designed to measure the electrical conductivity of the fluid in the well, and in the second through window located above the first, along the body axis there is a moisture meter sensor designed to measure moisture content in the well, while the moisture meter sensor is equipped with a temperature sensor designed to measure the temperature of the fluid in the well. 2. The resistivity meter-moisture meter according to claim 1, characterized in that the sealed compartment is configured to accommodate the microcontroller units, the modem temperature sensor for controlling the operation of the device, converting the resistivity meter sensor signals and converting the moisture meter sensor signals and flash memory mounted on one chassis, and the microcontroller unit is electrically connected to other units. 3. The resistivity meter-moisture meter according to claim 2, characterized in that the resistivity meter sensor is electrically connected to the signal conversion unit of the resistivity meter sensor and is made in the form of primary and secondary coils located in the housing coaxially along the length of the resistivity meter channel. 4. Resistivity meter-moisture meter according to claim 2, characterized in that the moisture meter sensor (6) is electrically connected to the signal conversion unit of the moisture meter sensor and is made in the form of a remote sensor for measuring capacitance using a bridge circuit. - 6 033551 5. Resistivity meter-moisture meter according to claim 1, characterized in that the lower end of the housing is provided with a first adapter connector connected through a common bus with the computer system. 6. Resistivity meter-moisture meter according to claim 1, characterized in that the upper end of the housing (1) is provided with a second adapter connector connected through a common bus with the computer system. 7. The resistivity meter-moisture meter according to claim 5, characterized in that at the lower end of the housing there is a first fairing made with the possibility of rigid attachment to the lower part of the housing. 8. Resistivity meter-moisture meter according to claim 6, characterized in that at the upper end of the housing there is a power supply unit with a connector, made with the possibility of rigidly attaching its lower part to the body in such a way that the second adapter connector of the case and the connector of the power supply unit are connected between yourself. 9. Resistivity meter-moisture meter according to claim 8, characterized in that the power supply contains a battery electrically connected to the connecting connector of the power supply. 10. A method for measuring the electrical conductivity of a fluid in a well, which consists in lowering the resistivity meter-moisture meter according to claim 1 into the well, followed by measuring the temperature of the fluid in the well using a temperature sensor and the electrical conductivity of the fluid in the well using a resistivity meter, while the measured values are recorded during the measurement. the temperature and electrical conductivity of the fluid, and the true value of the electrical conductivity of the fluid in the well is determined based on the measured temperature and electrical conductivity of the fluid in the well using the formula S = a ₀₀ + a _w T + a ₂₀ T ² + (a 01 + ariT + cr21G ² ) 6+ (cr 02 + α _ί2 Τ + a ₂₂ T ² ) C ² , where a ₀₀ , a ₀₁ , a ₀₂ , a ₁₀ , a ₁₁ , a ₁₂ , a ₂₀ , a ₂₁ , a ₂₂ - coefficients calculated during the calibration of the moisture meter in the operating temperature range; T is the measured value of the fluid temperature; G is the measured value of the electrical conductivity of the fluid; S is the true value of the electrical conductivity of the fluid. 11. A method for measuring the moisture content in a well, which consists in lowering the resistivity meter according to claim 1 into the well, followed by measuring the temperature of the fluid in the well using a temperature sensor and the percentage of water in the fluid in the well using a moisture sensor, while the measured temperature and percentage of water in the fluid, and the true percentage of water in the fluid in the well is determined based on the measured temperature and the percentage of water in the fluid in the well using the formula: V = d ₀₀ + d ₁₀ T + d ₂₀ T ² + (d 01 + driT + d21T ² ) L + (d02 + d ₁₂ T + d ₂₂ T ² ~) L ² , where d ₀₀ , d ₀₁ , d ₀₂ , d ₁₀ , d ₁₁ , d ₁₂ , d ₂₀ , d ₂₁ , d ₂₂ - coefficients calculated during the calibration of the moisture meter in the operating temperature range; T is the measured value of the temperature of the fluid flow; L is the measured moisture content of the fluid; V is the true moisture content of the fluid.