RU2425213C1 - Borehole instrumentation complex - Google Patents

Abstract

FIELD: oil and gas industry. ^ SUBSTANCE: borehole instrumentation complex includes telemetering module and at least one binding module, which are in series connected to each other. Each of modules includes power unit connected to information processing unit, memory unit and signal level matching unit. Information processing unit is connected to memory unit and to signal level matching unit. At that at least one of modules includes borehole parameter sensor unit connected to information processing unit. Telemetering module also includes information signal extraction and shaping units, each of which is connected to power unit and to information processing unit. Power unit and information extraction and formation unit are connected by means of geophysical cable to ground equipment including power and information signal source. Signal level matching units of telemetering module and binding module connected to it are connected to each other by means of power line and/or connection. ^ EFFECT: enlarging functional capabilities of instrumentation complex, reducing the number of invalid data owing to automation of configuration process of modules in the complex. ^ 7 cl, 9 dwg

Description

The invention relates to the oil industry, in particular to the field of geophysical research of wells, and in particular to devices for measuring and monitoring well parameters.

A device for monitoring the development and operation of a gas well is known, comprising a cylindrical body, on top of which there is a docking station with a wireline cable. In the case itself, axial flow and horizontal gas flow sensors, humidity, pressure, noise, temperature, gamma-ray, clutch locator, power supply and electronic boards sensors are installed, a centralizer is installed on the case, centering the device itself along the well axis (see patent RU 2230903, IPC Е21В 47/00).

The disadvantage of this device is a narrow scope, since the number and sequence of sensors are strictly determined during manufacture and can not be changed if necessary, operational expansion for additional measurements.

A well-known complex combined tool for logging wells, containing a borehole part connected by a communication line (wireline) with the ground part. The downhole part includes several downhole probes, each of which contains a matching unit with a communication line, which includes transformers and a power supply, and measuring probes, each of which contains signal sensors connected in series, a switch and a measuring information converter (see patent SU 1087939 IPC G01V 11/00).

However, both the list and the sequence of data read from the probes of the downhole part are specified during the manufacture of the device and cannot be changed during operation. In addition, it is not possible to set individual tuning factors, operating modes, and sensor processing algorithms over the communication line.

A well-known integrated device for researching wells, containing a cylindrical body attached to a wireline cable, which houses sensors with electronic circuits. Docking nodes are made from the ends of the cylindrical body, the connectors of which have an information bus for connecting additional modules both from below and from above, and a through electric circuit connecting one of the contacts of the instrument head to one of the contacts of the connector of the lower docking unit is drawn through the contacts of the connectors of the docking nodes for connecting an additional device with a single-wire interface. The device additionally contains a bi-directional communication line and a non-volatile memory controlled by a microcontroller to load and store in it individual instrument coefficients, operating modes and processing algorithms of sensors without opening the case (see patent for PM RU 61342, IPC Е21В 47/00). The known device is taken as a prototype.

The disadvantage of the prototype is the limited number of complex devices assembled in one bundle, due to the presence of a separate line for each module, while the docking nodes are able to accommodate only a certain number of cores. In addition, the correspondence of the received data to a specific complex device in a bundle (configuration) is set manually by the operator.

The problem solved by the claimed invention is to expand the functionality and scope of the control and measuring complex.

The technical result consists in providing the possibility of combining in the control and measuring complex an arbitrary number of modules, preventing the appearance of erroneous data by automating the process of configuring the modules in the complex.

The claimed technical result is achieved by the fact that the downhole control and measuring complex comprises a telemetry module and at least one ligament module, each of which includes a power supply connected to an information processing unit, a memory unit and a signal level matching unit, and the information processing unit is connected to the memory unit and the signal level matching unit, while at least one of the modules comprises a well parameters sensor unit connected to information processing unit, and the telemetry module additionally contains units for extracting and generating an information signal, each of which is connected to power supply and information processing units, power units, extracting and generating an information signal are connected via geophysical cable to ground equipment, including a power source and information signal , blocks matching the signal levels of the telemetry module and the connected ligament module are interconnected via a power line and / or communication. The power supply units of the telemetry module and the ligament module are interconnected via a power line and / or communication. The well parameters sensor unit comprises a sensor for electrical and / or acoustic logging and / or nuclear-geophysical surveys and / or gas logging and / or thermal logging and / or cavernometry and / or flow metering and / or barometry. Each module of the complex contains a key configured to disconnect the power supply unit and / or the signal level matching unit of the connected module from the common power and / or communication line. The telemetry module contains a pairing unit connecting the geophysical cable to the power supply units, isolating and generating the information signal of the telemetry module. The ligament module contains an interface unit connected to a power and / or communication line connecting the signal level matching units of the telemetry module and the ligament module. The complex includes at least two connecting modules, each of which contains an additional signal level matching unit connected to the power supply unit and the module information processing unit, while an additional signal level matching unit of each connecting module is connected to the signal level matching unit of the next connecting module .

The invention is illustrated by drawings, where

figure 1 presents the structural diagram of the telemetry module (head module) and ligament modules with a phantom power circuit of the head and ligament modules;

figure 2 presents the structural diagram of the telemetry module with a phantom power circuit of the head module and a separate power line of the ligamentous modules;

figure 3 presents the structural diagram of the telemetry module when powering the head module for a separate cable core and a separate power line connecting modules;

figure 4 presents the structural diagram of the ligament module when powered by a separate cable core;

figure 5 presents the structural diagram of the telemetry module and ligament modules with a key on the power line with a phantom power circuit of the telemetry module and ligament modules;

Fig.6 shows a structural diagram of a telemetry module with a key on the power line with a phantom power circuit of the telemetry module and a separate power line of the ligament modules;

Fig. 7 shows a block diagram of a telemetry module with a key on the power line when powered by a separate cable core and a separate power line for ligament modules;

on Fig presents a structural diagram of ligament modules with a key on the information channel and power on a separate cable core;

figure 9 presents the structural diagram of the ligament module with a key on the power line and parallel connection of the pairing unit with a phantom power scheme of the ligament modules.

The positions in the drawings indicate: one - geophysical cable; 2 - telemetry module (head module); 3 - ligamentous module; four - pairing unit; 5 - Power Supply; 6 - an information signal extraction unit; 7 - an information signal generating unit; 8 - information processing unit; 9 - memory block; 10 - block matching signal levels; eleven - communication line; 12 - power line; 13 - sensor block; fourteen - key.

The downhole control and measuring complex contains one telemetry module 2, which is the head module, and an arbitrary number of 3 ligamentous modules, while the ligamentous modules are connected together in series, and the first ligamentous module is connected to the head module.

The head module (telemetry module) through a geophysical cable 1 is connected to ground equipment - a power source (direct or alternating current and voltage) and a transceiver of information signals controlled by a personal computer (not shown). To supply power to the complex and exchange information signals between the modules and ground equipment, the same wires of the geophysical cable can be used, while information signals can have a different modulation method (amplitude, frequency, phase or combined), as well as separate cable cores. In the phantom power supply circuit, information signals are transmitted along the supply wires of the geophysical cable, in this case the head module contains two interface units 4, a power supply unit 5 and two information signal extraction units 6 connected to it, two information signal generation units 7, an information processing unit 8, the memory unit 9 and the sensor unit 13 (figure 1). The first interface unit 4 of the head module is connected to the geophysical cable 1 and is designed to extract information signals from the power line and add information signals to the power line of the geophysical cable. The second interface unit is connected to the communication line 11, designed to connect the next in the complex ligament module. As the interface unit, isolation capacitors, phantom transformers, etc. can be used. It is possible to connect the telemetry module according to the phantom scheme when using separate lines for power supply 12 and communication 11 when connecting ligament modules. In this case, there is no need for second blocks of pairing, isolation and formation, the head module contains one pairing block 4, a power supply 5, one block for extracting 6 and generating 7 information signals, an information processing block 8, a memory block 9, a sensor block 13, and further comprises a block 10 matching signal levels (figure 2). When using separate veins of the geophysical cable for power supply and exchange of information signals, there is no need for the first block 4, therefore it is absent (Fig. 3). If the head module is not intended for measurements, but serves only to provide communication with ground equipment, the sensor unit 13 is absent. The power supply unit 5 is designed to convert the supply current and voltage transmitted through the wireline cable to the voltage necessary for the operation of the electronic modules of the module. The power supply unit is connected to the interface unit or to the supply cores of the geophysical cable and, accordingly, to all electricity consumers in the module: units for extracting 6 and generating 7 information signals, processing information 8, memory 9, matching 10 signal levels and the sensor unit 13. Interface unit 4 (see FIGS. 1 and 2) or supply cores of a geophysical cable (see FIG. 3) are connected to a power line 12 to which power supplies 5 of connecting modules 3 are connected. Interface unit 4 (see FIGS. 1 and 2) or signal wires of the geophysical cable (see fi d.3) are connected to the block 6 of the selection of the information signal from ground equipment, designed to convert an analog signal into a digital one and connected to the digital input of the information processing unit 8. The digital signal output of the information processing unit is connected to the information signal generating unit 7 from the head module 2 (telemetry module) to ground equipment designed to convert the digital signal to analog and its amplification and connected to block 4 (see Figs. 1 and 2) or with signal cores of the geophysical cable (see figure 3). The information processing unit 8 is connected to the memory unit 9, which stores the executable program, calibration coefficients, service data (serial number, version of the executable program, recording points, etc.), as well as the serial number of the module obtained in the process of automatic configuration in the complex. The memory block also stores an identifier by which information is extracted from the database of the telemetry processing program located on the operator’s computer about which module it is and about its set of sensors; unit 9 can be either integrated into the microprocessor of the information processing unit 8, or assembled from separate elements. An information block 13 is also connected to the information processing block; it contains one or several sensors (temperature, pressure, density, etc.) designed for electric, acoustic, gas logging, nuclear-geophysical studies, thermal logging or cavernometry, and a signal level matching block 10 connected via a communication line 11 with a similar unit 10 in the first ligament module 3.

The ligament module 3 is similar to the telemetry module in the case of using a phantom power circuit (Fig. 1). When using a communication line 11, separate from the power line 12, the ligament module contains a power supply 5, an information processing unit 8, a memory unit 9, two signal level matching units 10, a sensor unit 13 (Fig. 4). If the module is a mechanism, flexible connection, centralizer, etc., then the sensor unit 13 is absent, the ligament module only indicates its presence and ensures the passage of signals. The power supply 5 of the first ligament module 3 is connected to the power line 12, as well as to all consumers of electric power of the module - with blocks matching the signal levels, information processing, memory, sensors. A memory unit 9, a sensor unit 13, and two signal level matching units 10 are connected to the information processing unit 8, the first unit 10 of the first connecting module being connected via a communication line 11 to the telemetry module unit 10, the second unit 10 of the first connecting module being connected using a communication line 11 with the first block 10 of the subsequent ligamentous module. An arbitrary ligament module in the complex is connected to a power line 12, as well as to two adjacent ligament modules using communication lines 11.

Perhaps a different implementation of the downhole control and measuring complex. Each bundle module of the complex, in addition to the above, contains a shutdown unit (it may be absent in the head module), which is a normally open key 14 located on the power line 12 of the bundle complex, either on the data line 11, or on the common data and power channel, if the power modules is implemented according to the phantom scheme, and disconnecting all the modules following the given module from the power line 12, or from the data line 11, or from the common power and data line (Figs. 5, 6, 7, 8, 9). The complex includes the telemetry module of FIG. 5 and ligament modules of FIG. 5 or FIG. 9 with a phantom power circuit, or the telemetry module of FIG. 6 or FIG. 7 and ligament modules of FIG. 8 in other cases. A connecting module with a phantom power circuit contains a key 14 dividing the power and communication line 11 into sections before and after the module, as well as a pairing unit 4, power 5, allocation 6, formation of 7 information signals, information processing 8, memory 9, sensors 13 (Fig.9). Blocks 4 and 5 are connected to the section of line 11 located up to the key, while block 5 is connected to blocks 6, 7, 8, 9, 13 and 14, block 4 is connected to blocks 6 and 7, and block 8 is connected to blocks 5 , 6, 7, 9, 13, and 14.

Downhole control and measuring complex with modules made according to the schemes presented in figures 1-4, works as follows. From the ground-based equipment, a voltage and current are supplied to the interface unit 4 of the head module 2 via geophysical cable, from where power is supplied via line 12 to the power supply units 5 of the head and ligament modules, generating voltage and currents necessary for the operation of blocks 6, 7, 8, 9 , 10 and 13 of the respective modules. In the memory block 9 of the head module 2, a constant address is stored, for example 00H, which is assigned to the telemetry module, all the connecting modules 3 are assigned the same broadcast address, for example FFH, stored as the default address in their memory blocks. Addresses assigned in the process of automatic configuration (auto-configuration) and stored in the memory blocks 9 of the connecting modules 3 are not saved when the power is turned off and then turned back on and the value of the broadcast address (FFH) is returned. After setting the nominal supply voltage generated by the power supply unit 5 of the head module, and after a predetermined time interval necessary to turn on all the bundle modules, the head module automatically starts the auto-configuration program. When the program is executed, the information processing unit generates a command (digital signal) “assign address 01H” and sends it to the broadcast address (FFH). The command from block 8 enters the block 10 converting and matching signal levels, where the digital signal is amplified (if necessary, the protocol and modulation method are converted, galvanic isolation is performed), and then transmitted to communication line 11. The command transmitted through the communication line is received by the first block 10 of the first ligament module 3 and is sent to the information processing unit 8 of the ligament module. The information processing unit 8 extracts the recipient address from the received command and compares it with that stored in the memory unit 9. Since the first link module 3 has the FFH address by default, it executes the command received from the head module 2 and changes its address to 01H, fixing it to the memory block 9, and then generates and sends in response through the first block 10 an information signal (telemetry package) containing the module identifier and other information about the type of module, serial number, recording points, electronics version, etc. The response telemetry packet arrives on the communication line 11 through the head module unit 10 to the information processing unit 8, fixing the current number of modules in the memory unit 9. The telemetry packet received from the first ligament module is converted in block 8 of the head module: it is supplemented with the address 01H (number) of the responding module, information for checking the integrity of the packet (checksum calculated by the given algorithm), and transmitted to the ground equipment through blocks 7 and 4. The ground equipment receives and decodes the received packet and fixes the correspondence of the first address (01H) to a specific type of module (with a specific set of sensors). After receiving a response to the command from the ligament module and transmitting it to the ground equipment, the information processing unit of the head module generates the command "assign address 02H" and sends it to the broadcast address (FFH). The command passes through the communication line 11 between the head module 2 and the first ligament module 3, is received by the first block 10 of the first ligament module 3 and is sent to the information processing unit 8 of the ligament module. The information processing unit 8 extracts the recipient address from the received command and compares it with that stored in the memory unit 9. Since the first communication module 3 has a changed address (01H), it does not execute the command received from the head module 2, but sends it to the second block 10, from where the command on the communication line between the first and second connecting modules comes to the first block 10 of the second module 3. The information processing unit 8 of the second connecting module receives a command, selects the recipient address and compares it with its own address stored in the block 9. Since the default FFH address has not been changed, the information processing unit of the second ligament module executes the command received from the head module 2 and changes its address to 02Н, fixing it in the memory unit 9, and then forms and directs it back through the first block 10, the response telemetry package containing the identifier and information about the type of module, serial number, recording points, electronics version, etc. The answer passes through the communication line between the first ligament module and the second ligament module and is sent by the information processing unit of the first ligament module through the communication line between the head module and the first ligament module to the information processing unit of the head module, fixing the current number of modules in the memory unit 9. The head module transmits the telemetry packet received from the ligament module to the ground station, preliminarily adding it with the address 02H (number) of the responding module and information for checking the integrity of the packet. The process of generating commands with the requirement to assign the next address from a predefined sequence of addresses and send it to the address assigned to the default connecting modules continues until all the modules have received the address and no one answers the broadcast address (FFH) (i.e., the time runs out waiting for a response to a command). If there are sensors in the head module, block 8 assigns its own address 00H to them.

Having completed the autoconfiguration procedure, the head module begins to cyclically generate and send measurement commands to all ligament modules, and transmit the telemetry of the ground station received from them. The operator can give any command to a specific liaison module, while the command is generated by ground equipment with the address of the required module and a signal corresponding to this command is sent via the wireline cable. In the head module, the interface unit 4 separates the information signal from the carrier (supply) voltage and sends it to the information signal extraction unit 6 from the ground equipment, which converts the analog information signal extracted by unit 4 into a digital code that can be processed in block 8. Information processing unit 8 of head module 2 receives a digital code and extracts the recipient address from it, if the selected address does not match the address of the head module (00H), the head module generates a telemetry packet for viscous module and through block 10 directs it along the intermodular communication line 11 to the next ligament module. The first ligament module, having received this telemetry package and selecting the recipient address from it, will either execute the command contained in the packet or transmit the packet unchanged via communication line 11 to the next ligament module.

A variant of the operation of the claimed device according to figures 1-4, when the head module of the ligamentous complex performs only the functions of a transceiver for the exchange of information between the ligamentous complex and ground equipment, and initiates and conducts auto-configuration of ground equipment. In the initial state, all modules of the complex (head and ligamentous) have one broadcast address (FFH). Then, power is supplied via a wireline cable from ground equipment and a signal is sent corresponding to the command “assign address 00H”; the interface unit 4 separates the information signal from the carrier (supply) voltage and sends it to the information signal extraction unit 6 from the ground equipment, converting the analog information signal selected by unit 4 into a digital code available for processing in block 8. Information processing unit 8 of the head module 2 receives a digital code, extracts the address and command from the received packet, and compares the command address with its own address stored in the memory unit 9. Since the command address and the module address are the same, of the first module bundle executes the command, taking on the address 00H stores it in the storage unit 9 and sends a response packet telemetry ground equipment. And so on, until all the connecting modules receive unique addresses and no one answers the command with the broadcast address.

The principle of operation of the downhole control and measuring complex with modules made according to the schemes shown in Figs. 5-9 differs from the above in that the initially open key of the first ligament module in the ligament blocks the passage of power or data beyond this module. Thus, only one module is initially connected to the head module. After establishing the nominal supply voltage generated by the power supply unit 5 of the head module and after a set time interval is required to turn on all the bundle modules (if the key 14 does not open the power line), the head module automatically starts the autoconfiguration program. If the head module contains block 14, the information processing unit of the head module sends a signal to this block to lock the key. As a result, the ligament module following the head module turns out to be connected to the head module either by power, or information, or simultaneously through both of these channels. When the program is executed, the information processing unit of the head module generates a command (digital signal) "assign address 01H" and sends it to the broadcast address (FFH). The command from block 8 enters the block 10 conversion and coordination of signal levels, where the digital signal is amplified and converted for transmission over communication line 11; the command passed through the communication line is received by block 10 of the first ligament module 3 and sent to the information processing unit 8 of the ligament module. The information processing unit 8 extracts the recipient address from the received command and compares it with that stored in the memory unit 9. Since the first communication module 3 has a default broadcast address (FFH), it executes the command received from the head module 2 and changes its address to 01H, fixing it in the memory block 9, and then sends to the block 14 a command to close the key, thus connecting the following ligament module. Next, block 8 generates and sends a telemetry packet in response through block 10 containing information about the type of module, serial number, recording points, electronics version, etc. The response telemetry packet arrives on the communication line 11 through the head module unit 10 to the information processing unit 8, fixing the current number of modules in the memory unit 9. The telemetry packet received from the ligament module is converted in block 8 of the head module - it is supplemented with the address 01H (number) of the responding module (01H), information for checking the integrity of the packet (checksum calculated by some algorithm) and transmitted to the ground equipment through blocks 7 and 4 . The ground equipment receives and decodes the received packet and fixes the correspondence of the first address 01H to a specific type of module with a specific set of sensors. After receiving a response to the command from the ligament module and transmitting it to the ground equipment, the information processing unit of the head module generates the command "assign address 02H" and sends it to the broadcast address (FFH). The command passes through the communication line 11 between the head module 2 and the first ligament module 3, is received by blocks 10 of the first and second ligament modules 3, and is sent to the corresponding information processing units 8 of the ligament modules. Each information processing unit 8 extracts the recipient address from the received command and compares it with that stored in the memory unit 9. Since the first communication module 3 has a changed address 01H, it does not execute the command received from the head module 2. Information processing unit 8 of the second communication module compares the recipient address and its own address stored in the memory unit 9. Since the FFH address assigned by default has not been changed, the information processing unit of the second communication module executes the command received from the head module 2, and from enyaet his address to 02H, fixing it in the memory unit 9 and closing the switch 14, and then generates and sends back through the block 10 back telemetry package containing information on the module type, serial number, entry points, version electronics, etc. The process of generating commands with the requirement to assign the next address from a predetermined sequence of addresses and send to the address assigned to the connecting modules by default continues until all the modules have received the address and no one answers to the broadcast address (FFH) (i.e. time to wait for a response to the command). If there is a sensor block in the head module, block 8 associates it with its own address (00H).

After completing the auto-configuration procedure, the head module begins to cyclically generate and send measurement commands to all the connected modules and transmit the telemetry of the ground station received from them. The command from the ground station to a specific module is issued in the same way as described above.

A possible embodiment of the inventive complex is shown in FIGS. 5–9, in which the head module of the ligament complex can only perform transceiver functions for exchanging information between the ligament complex and ground equipment, and it initiates and conducts auto-configuration of ground equipment. In this case, in the initial state, all ligament modules (head and ligaments) have one broadcast address (for example, FFH), all ligament modules (head and ligaments) have keys 14 open in the initial state, thus to the ground station through logging cable is connected only to the first module. Then, power is supplied via a wireline cable from the ground equipment and a signal is sent corresponding to the command “assign address 00H”. The interface unit 4 separates the information signal from the carrier (supply) voltage and sends it to the information signal extraction unit 6 from the ground equipment, which converts the analog information signal extracted by unit 4 into a digital code available for processing in block 8. Information processing unit 8 of the head module 2 receives a digital code, extracts the address and command from the received packet, and compares the command address with its own address stored in the memory unit 9. Since the command address and the module address are the same, ligaments of the first module executes the command, appropriating 00F address and storing it in the memory unit 9 sends a command in block 14 for the key circuit and sends a response packet telemetry surface equipment. And so on, until all the connecting modules receive unique addresses and no one answers the command with the broadcast address.

The above-described modules and methods for their autoconfiguration in the complex are implemented in a device designed for complex geophysical studies of existing wells. In a specific embodiment, for the telemetry module, the block diagram shown in FIG. 5 is implemented, and for all ligament modules, the block diagram shown in FIG. 9 is implemented. Geophysical cable 1 - single-core geophysical cable up to 5500 m long, for example KG1-55-180; communication line 11 - wire MGTF-0.12 TU 16-505.185-71; NKB connectors 1-36. The complex consists of the following modules.

Telemetry module - instrument head, combined with a power source and interface converter, designed to transcode the internal interface to the external. As both blocks of the interface 4 used transformers. The power supply unit 5 is a pulsed flyback source based on a pulse-width modulation controller with a current control mode UC2844, which converts the input voltage (110 ± 20 V) into the voltages necessary for the operation of the electronic circuits of the module. The information signal extraction unit 6 contains an R-C filter and a pulse extraction circuit on the comparator for extracting signals from the ground station, as well as a transceiver chip for the RS-485 interface - ADM485 for extracting signals from the modules. The information signal generating unit 7 contains a transceiver chip for the RS-485 - ADM485 interface for generating signals to the modules, and for generating signals to the ground equipment, the modulating signal is received from the PIC controller, through a matching signal transistor, to the signal amplifier circuit on the IR53HD420 chip and a double-winding transformer, one winding of which is connected in series with a living geophysical cable, and a power amplifier is loaded on the second. Information processing unit 8 - PIC18F2420 microcontroller, memory unit 9 - built-in ROM of the PIC18F2420 microcontroller. The sensor unit 13 contains a resistive divider and a built-in ADC of the microcontroller for measuring the supply voltage on the core of the geophysical cable. There is no key 14 in the telemetry module, the module that follows (the first ligament module) is always connected.

The first ligamentous module is a gamma-ray logging (GC) module, containing a couplings locator, GK, a pressure sensor, a moisture meter, a thermo-debitmeter, configured to operate in a thermometer mode. Interface block 4 - transformer, power supply 5 - source on a half-bridge driver with an IR53HD420 oscillator, block 6 for extracting the information signal from the modules - transceiver chip for the RS-485 interface - ADM485, block 7 for generating an information signal to the modules - transceiver chip for the RS-interface 485 - ADM485, information processing unit 8 - PIC18F2420 microcontroller, memory unit 9 - built-in ROM of the PIC18F2420 microcontroller. The sensor unit 13 contains a coupling locator — a magnetic conductivity sensor, a GK sensor is assembled from an 18 × 100 NaJ (Tl) detector, a Hamamatsu R3991A photoelectric multiplier and circuits for powering the multiplier and signal extraction, a pressure sensor is an MD10-60-V TU 4212-163 strain transducer -00227459-98, moisture meter sensor - dielectric permittivity sensor, thermodemitter - thermoconductive flow meter, internal temperature sensor - accurate digital temperature sensor with I2C ™ LM92 interface. As a key 14, an electronic key assembled on transistors is used.

The second ligament module is a thermometer and resistivity meter module, which contains the following sensors: thermometer - temperature sensor, inductive resistivity meter, three accelerometers - 1 axial acceleration sensor ADXL103CE and 2-axis acceleration sensor ADXL203CE, and sound level meter - noise level sensor based on ⌀30 × piezoceramic element ⌀26 × 20 (TsTS-19). All other blocks are similar to those used in the first ligament module.

The third ligament module is a mechanical flowmeter module, all of whose blocks are similar to those used in the above modules, except for the sensor block including a liquid or gas flow sensor - a non-pass mechanical 38 mm diameter flow meter with a centralizer, used to operate at high flow rates of liquid or gas, made with the ability to determine the direction of flow and measure the diameter of the column.

The fourth ligament module is the density meter module at source Am241, designed to measure fluid density. All blocks of the densitometer module are similar to those used in the gamma-ray logging module, except for the sensor block containing the densitometer sensor with a NaJ (Tl) crystal with a diameter of 10 mm and a length of 5 mm as a radiator and a photomultiplier PMT-102 OKP 63 6722 1246 as a detector.

The fifth ligament module in the complex is a neutron module for neutron logging, used to evaluate rock porosity. The sensor block contains a helium neutron counter SNM56D, circuits for power supply and signal extraction. All other blocks are similar to those used in other connecting modules.

For the operation of the downhole control and measuring complex, ground-based equipment is used - an integrated geophysical laboratory and a personal computer. The laboratory provides the formation of a stabilized constant voltage and its transmission through a geophysical cable, continuous automatic collection of telemetry information from the well complex and its decoding. Input analog signals are digitized by a high-speed 14-bit analog-to-digital converter with a maximum sampling frequency of 3 MHz. After that, the signal is fed to the input of the signal processor, where it is decoded and transmitted for registration to the computer using the standard Ethernet network protocol, which ensures high data exchange speed and hardware independence from the type of computer used.

Claims (7)

1. A downhole control and measuring complex, characterized in that it comprises a telemetry module and at least one ligament module, each of which includes a power supply connected to an information processing unit, a memory unit and a signal level matching unit and the information processing unit is connected to the memory unit and the signal level matching unit, while at least one of the modules contains a well parameters sensor unit connected to the information processing unit and the telemetry module additionally contains blocks for extracting and generating an information signal, each of which is connected to power supply and information processing units, power units for extracting and generating an information signal are connected via geophysical cable to ground equipment, including a power source and information signal, blocks coordination of signal levels of the telemetry module and the ligament module connected to it are interconnected via a power line and / or communication. 2. The complex according to claim 1, characterized in that the power supply units of the telemetry module and the ligament module are interconnected via a power line and / or communication. 3. The complex according to claim 1, characterized in that the well parameters sensor unit comprises a sensor for electrical and / or acoustic logging, and / or nuclear-geophysical surveys, and / or gas logging, and / or thermal logging, and / or cavernometry, and / or flow measurement and / or barometry. 4. The complex according to claim 2, characterized in that each module of the complex contains a key configured to disconnect the power supply unit and / or the unit for matching signal levels of the module connected to it from a common power and / or communication line. 5. The complex according to claim 1, characterized in that the telemetry module comprises an interface unit connecting the geophysical cable to the power supply units, isolating and generating the information signal of the telemetry module. 6. The complex according to claim 1, characterized in that the ligament module comprises an interface unit connected to a power and / or communication line connecting the signal level matching units of the telemetry module and the ligament module. 7. The complex according to claim 1, characterized in that it includes at least two connecting modules, each of which contains an additional unit for matching signal levels, connected to a power supply unit and a unit for processing information of the module, while an additional unit for matching signal levels each ligament module is connected to the signal level matching unit of the next ligament module.

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