CN114412443B - Horizontal well gas-liquid two-phase flow accumulating type modularized parameter logging instrument and control system - Google Patents
Horizontal well gas-liquid two-phase flow accumulating type modularized parameter logging instrument and control system Download PDFInfo
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- 239000007788 liquid Substances 0.000 title claims abstract description 89
- 230000005514 two-phase flow Effects 0.000 title claims abstract description 22
- 238000005259 measurement Methods 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 7
- 238000012545 processing Methods 0.000 claims abstract description 5
- 238000012800 visualization Methods 0.000 claims abstract description 5
- 238000009825 accumulation Methods 0.000 claims description 81
- 238000010521 absorption reaction Methods 0.000 claims description 65
- 239000013307 optical fiber Substances 0.000 claims description 62
- 238000001514 detection method Methods 0.000 claims description 30
- 239000012071 phase Substances 0.000 claims description 16
- 239000012530 fluid Substances 0.000 claims description 14
- 230000001186 cumulative effect Effects 0.000 claims description 13
- 239000007791 liquid phase Substances 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 7
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- 230000003321 amplification Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000035772 mutation Effects 0.000 claims description 3
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- E21B47/00—Survey of boreholes or wells
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- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
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Abstract
The invention relates to a horizontal well gas-liquid two-phase flow accumulating type modularized parameter logging instrument and a control system, which belong to the technical field of horizontal well logging, wherein the logging instrument comprises a circuit bin, a centralizer II, a liquid inlet pipeline, a rubber current collector, a controllable rotary accumulating bin sleeved with the centralizer I and a liquid outlet pipeline, and one or more groups of non-choked flow accumulating type parameter measuring modules are connected between the controllable rotary accumulating bin and the liquid outlet pipeline; the control system comprises a light emitting module, a light receiving module, a signal processing module, a multichannel program control switch, a motor driving circuit module, a relay module, a power module, a main controller module, a timer module and a visualization module. The method is used for measuring the flow and the split-phase content of the gas-liquid two-phase flow of the shale gas horizontal well, has the advantages of high integration degree, easiness in installation and replacement, no flow resistance, no movable part, reliability in measurement and the like, and solves the problem that the gas-phase parameter of the conventional shale gas horizontal well is difficult to measure.
Description
Technical Field
The invention relates to a horizontal well gas-liquid two-phase flow accumulating type modularized parameter logging instrument and a control system, and belongs to the technical field of horizontal well logging.
Background
The development of unconventional oil and gas resources represented by shale gas becomes an important guarantee for fundamentally improving the environmental quality and implementing a new strategy for developing national energy which takes clean energy as a dominant source. The method has the advantages that the gas yield and the gas yield contribution rate of each fracturing interval of the shale gas well are mastered in real time, the output condition of each fracturing interval of the shale gas well is comprehensively evaluated, and the method has important significance for scientifically making shale gas development and deployment decisions and effectively guiding reasonable optimization of repeated fracturing yield-increasing reconstruction schemes of the shale gas well.
In shale gas exploitation, the domestic horizontal well output profile testing instrument mainly comprises mature testing instruments for vertical wells, such as a current collecting type impedance meter, a capacitance water content meter, an electromagnetic flowmeter, a turbine flowmeter and the like, and the conventional output profile testing technology is difficult to meet the monitoring requirement due to the influence of weak conductivity of fluid to be tested in a shale gas horizontal shaft mainly comprising gas production and external electromagnetic wave interference.
Aiming at the problems, in order to meet the actual production requirement of the shale gas horizontal well, the design of a gas-liquid two-phase flow accumulating type modularized parameter logging instrument and the development of a corresponding control system aiming at the new environment of the shale gas horizontal well become the problems to be solved currently.
Disclosure of Invention
The invention aims to provide a horizontal well gas-liquid two-phase flow cumulative modular parameter logging instrument and a control system, which can master the gas yield and the gas yield contribution rate of each fracturing layer section of a shale gas well in real time.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a horizontal well gas-liquid two-phase flow accumulation formula modularization parameter logging instrument, includes circuit storehouse, centralizer II, the inlet pipeline that is equipped with a plurality of inlets in circumference, rubber current collector, cover are equipped with the controllable rotatory accumulation storehouse and the liquid outlet pipeline of centralizer I that connect gradually, be equipped with the liquid outlet on the liquid outlet pipeline, still be connected with one or more sets of no choked flow accumulation formula parameter measurement module between controllable rotatory accumulation storehouse and the liquid outlet pipeline; the non-flow accumulation type parameter measurement module comprises a circuit bin connected with the outlet end of the controllable rotary accumulation bin, a rubber current collector and the controllable rotary accumulation bin sleeved with a centralizer I; and a near infrared absorption type optical fiber detection system is arranged in the controllable rotary accumulation bin.
The technical scheme of the invention is further improved as follows: the controllable rotary accumulation bin comprises an accumulation bin cavity, wherein a controllable liquid inlet is formed in the bottom of one side of the accumulation bin cavity, which is close to the rubber current collector, and a controllable liquid outlet is formed in the bottom of one side of the accumulation bin cavity, which is close to the liquid outlet pipeline; a shell groove is formed in the outer side of the middle of the accumulation bin cavity, and a sealing ring is sleeved in the shell groove; near infrared absorption type optical fiber detection systems are arranged on the end surfaces of the two sides of the accumulation bin cavity, and a small motor is connected with the end surface of one side of the accumulation bin cavity, which is close to the liquid outlet pipeline.
The technical scheme of the invention is further improved as follows: the near infrared absorption type optical fiber detection system consists of m (m is more than or equal to 3, m is more than or equal to N) * ) The near infrared absorption type optical fiber sensors are distributed in a staggered mode along the axial direction, and sensitive areas of the near infrared absorption type optical fiber sensors are all in the controllable rotary accumulation bin; the near infrared absorption type optical fiber sensor comprises a near infrared emission device and a near infrared receiving device; the m (m is more than or equal to 3, m is E N) * ) The near infrared absorption type optical fiber sensors are distributed on two end surfaces of the accumulation bin, the distances between two longitudinally adjacent near infrared absorption type optical fiber sensors are equal and the transverse positions are staggered, and k (k is more than or equal to 3, k is E N) is arranged on the longitudinal direction of the accumulation bin end surface * ) The m groups of near infrared absorption optical fiber sensors are uniformly arranged on the longitudinal end face separation lines of the end faces of the accumulation bin.
The technical scheme of the invention is further improved as follows: the near infrared transmitting device and the near infrared receiving device are connected with the accumulation bin cavity in a threaded sealing manner, and the small motor is connected with the accumulation bin cavity in a threaded manner.
The technical scheme of the invention is further improved as follows: and a circuit system, an azimuth sensor and an angle sensor are arranged in the circuit bin.
An accumulated modularized parameter logging instrument control system is applied to the horizontal well gas-liquid two-phase flow accumulated modularized parameter logging instrument, and comprises:
the light emitting module is used for providing driving electric energy for the near infrared emitting device so that the near infrared light source emits light rays;
a light receiving module for converting light energy in the near infrared receiving device into electric energy;
the signal processing module is used for carrying out differential, amplification and analog-to-digital conversion operation on the received electric signals and outputting voltage signals reflecting the gas holding rate information;
a multichannel program-controlled switch for controlling m (m is more than or equal to 3, m is less than N) in near infrared absorption type optical fiber detection system * ) The near infrared absorption type optical fiber sensors distributed in an axial staggered manner are used for time-sharing switching operation;
the relay module is used for controlling the opening and closing states of the controllable liquid inlet and the controllable liquid outlet;
the motor driving circuit module is used for providing electric energy for the small-sized motor;
the main controller module is used for controlling the working state of the small motor and m (m is more than or equal to 3, m is less than or equal to N) in the axial near-infrared absorption type optical fiber detection system * ) The working states of the near infrared transmitting devices and the near infrared receiving devices which are axially staggered in groups;
the power module is used for providing electric energy for each module;
the timer module is connected with the main controller module, and utilizes the main controller module to detect m (m is more than or equal to 3, m is less than N) in the axial near infrared absorption type optical fiber detection system * ) The near infrared absorption type optical fiber sensors distributed in an axial staggered manner are used for time-sharing data acquisition;
and a visualization module: for providing a visual operation interface to the system.
The technical scheme of the invention is further improved as follows: the control system comprises the following control steps:
s1, installing the logging instrument in a gas-liquid stratified flow stabilizing region of a shale gas horizontal well, and opening a rubber current collector, a controllable liquid inlet and a controllable liquid outlet to enable the cumulative modular parameter logging instrument to enter a working state;
s2, under the condition of gas-liquid stratified flow of the shale gas horizontal well, fluid flows into a controllable rotary accumulation bin of the logging instrument through a circumferential liquid inlet, and after a period of time, the main controller module closes the controllable liquid inlet and the controllable liquid outlet to block the fluid from continuously flowing into the controllable rotary accumulation bin;
s3, combining an azimuth sensor and an angle sensor, and rotating the controllable rotary accumulation bin by a certain angle to enable the near infrared absorption type optical fiber detection system to be parallel to the bottom surface;
s4, when the fluid is subjected to gas-liquid separation, the upper layer is a gas phase, and the lower layer is a liquid phase; the response value of the near infrared absorption type optical fiber sensor in the controllable rotary accumulation bin is sequentially obtained in a time-sharing manner by utilizing the near infrared absorption type optical fiber detection system, and the high-low level mutation position of the near infrared absorption type optical fiber sensor is further calculated; determining the accumulated height of the gas phase in the accumulation bin cavity according to the position of the abrupt change, and further calculating the gas flow of the gas phase in the cavity, so that the effective measurement of the gas flow and the gas content under the condition of the gas-liquid stratified flow of the shale gas horizontal well is realized;
s5, based on response values of the axial near-infrared absorption type optical fiber detection systems in the plurality of controllable rotary accumulation bins, average values of the airflow parameters and the air content parameters of the accumulated modularized parameter logging instrument are obtained.
S6, after the measurement is finished, the next measurement is carried out
By adopting the technical scheme, the invention has the following technical effects:
the method is mainly used for measuring the flow and the split-phase content of the gas-liquid two-phase flow of the shale gas horizontal well, has the advantages of high integration degree, easiness in installation and replacement, no flow resistance, no movable part, reliability in measurement and the like, and solves the problem that the gas-phase parameter of the conventional shale gas horizontal well is difficult to measure.
According to the invention, a plurality of groups of chokeless cumulative parameter measurement modules are combined with the near-infrared absorption type optical fiber detection system and the intelligent control system, near-infrared absorption type optical fiber sensor response signals which are axially staggered and distributed by the plurality of groups of near-infrared absorption type optical fiber detection systems are obtained in a time-sharing manner, effective measurement of gas phase flow and gas phase flow of gas-liquid two-phase flow of the shale gas horizontal well is realized according to the change of response values, and the measurement result is accurate and effective.
The invention utilizes the azimuth sensor and the angle sensor to realize the controllable rotary accumulation position, and adopts the controllable liquid inlet and outlet to seal the fluid in the accumulation bin, thereby realizing the standing measurement.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a horizontal well gas-liquid two-phase flow accumulating type modular parameter logging instrument according to the present invention;
FIG. 2 is a schematic view of the overall structure of the controllable rotary accumulation bin of the present invention;
FIG. 3 is a schematic diagram of the end face distribution of the near infrared absorption type optical fiber detection system of the controllable rotary accumulation bin;
FIG. 4 is a control system diagram of the logging tool of the present invention;
FIG. 5 is a block diagram of a control method of the logging tool of the present invention;
the device comprises a liquid outlet pipeline, a centralizer I, a controllable rotary accumulation bin, a 3-1 small motor, a 3-2 controllable liquid outlet, a 3-3 controllable liquid inlet, a 3-4 sealing ring, a 3-5 accumulation bin cavity, a 3-6 near infrared absorption type optical fiber detection system, a 4 rubber current collector, a 5 liquid inlet pipeline, a 6 centralizer II, a 7 circuit bin, an 8 non-flow accumulation type parameter measurement module.
Detailed Description
The present invention will now be described in more detail with reference to the drawings and specific embodiments thereof, wherein it is apparent that the embodiments described are only some, but not all, of the embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 3, the invention is exemplified by reconnecting 2 groups of non-flow accumulated parameter measuring modules, m=7, k=3, and a horizontal well gas-liquid two-phase flow accumulated modularized parameter logging instrument and a control system are described in detail.
The utility model provides a horizontal well gas-liquid two-phase flow accumulation formula modularization parameter logging instrument, includes circuit storehouse 7, centralizer II 6, the inlet pipeline 5 that is equipped with a plurality of inlets in circumference, rubber current collector 4, cover are equipped with controllable rotatory accumulation storehouse 3 and the liquid outlet pipeline 1 of centralizer I2, be equipped with the liquid outlet on the liquid outlet pipeline 1, still be connected with one or more sets of no choked flow accumulation formula parameter measurement module 8 between controllable rotatory accumulation storehouse 3 and the liquid outlet pipeline 1; the non-flow accumulation type parameter measurement module 8 comprises a circuit bin 7 connected with the outlet end of the controllable rotary accumulation bin 3, a rubber current collector 4 and the controllable rotary accumulation bin 3 sleeved with a centralizer I2.
The controllable rotary accumulation bin 3 comprises an accumulation bin cavity 3-5, wherein a controllable liquid inlet 3-3 is formed in the bottom of one side, close to the rubber current collector 4, of the accumulation bin cavity 3-5, and a controllable liquid outlet 3-2 is formed in the bottom of one side, close to the liquid outlet pipeline 1; the outer side of the middle part of the accumulation bin cavity 3-5 is provided with a shell groove, and a sealing ring 3-4 is sleeved in the shell groove, so that the gap between the shell of the logging instrument and the controllable rotary accumulation bin III 3 is sealed better; the near infrared absorption type optical fiber detection systems 3-6 are arranged on the end surfaces of the two sides of the accumulation bin cavity 3-5, and the end surface of one side of the accumulation bin cavity 3-5, which is close to the liquid outlet pipeline 1, is connected with the small motor 3-1 through threads. And a circuit system, an azimuth sensor and an angle sensor are arranged in the circuit bin 7.
The near infrared absorption type optical fiber detection system 3-6 is characterized in that m (m is more than or equal to 3, m is more than or equal to N) * ) The near infrared absorption type optical fiber sensor is formed by axially staggering the groups, and sensitive areas of the near infrared absorption type optical fiber sensors are all arranged in the controllable rotary accumulation bin. The near-infrared absorption type optical fiber sensor comprises a near-infrared transmitting device and a near-infrared receiving device, and the near-infrared transmitting device and the near-infrared receiving device are connected with the accumulation bin cavity 3-5 in a sealing manner through threads. The m (m is more than or equal to 3, m is E N) * ) The near infrared absorption type optical fiber sensors are distributed on two end surfaces of the accumulation bin, the distances between two longitudinally adjacent near infrared absorption type optical fiber sensors are equal and the transverse positions are staggered, and k (k is more than or equal to 3, k is E N) is arranged on the longitudinal direction of the accumulation bin end surface * ) The m groups of near infrared absorption optical fiber sensors are uniformly arranged on the longitudinal end face separation lines of the end faces of the accumulation bin.
The near infrared emission device is provided with a lens in front of the light source to collect light.
The receiving end of the near infrared receiving device is properly expanded so as to better receive light.
M (m is more than or equal to 3, m is equal to N) is arranged in the near infrared absorption type optical fiber detection system 3-6 * ) The near infrared absorption type optical fiber sensors are arranged in a staggered mode along the axial direction, and the absorption attenuation of near infrared light intensity after the fluid passes through the gas-liquid two-phase flow is equal to the linear sum of the light intensity attenuation after near infrared light respectively passes through the mixed phase fluid. It is assumed that when the measuring pipe is only flowing in the gas phase, the light intensity signal is recorded as I g Intensity of incident beam; when only liquid phase fluid flows in the measuring pipeline, the light intensity signal is recorded as I l Light beam intensity after transmission of the liquid phase. The near infrared emission probe outputs near infrared light with the liquid phase concentration of beta through the measuring pipeline 1 After the two-phase flow is absorbed, the near infrared absorption light intensity is I ', and then I' can be expressed as:
I'＝I g exp{-d[μ g (1-β l )+μ l β l ]} (1)
wherein d is the optical path/through the thickness of the medium to be measured, mu g Mu, the molar absorptivity of the gas phase to be measured l For the molar absorptivity of the liquid phase to be measured, measuring the concentration beta of the liquid phase at the interface of the pipeline l Can be expressed as:
as can be seen from formulas (1) and (2), the change of the light intensity signal collected by the near infrared receiving device actually reflects the absorption and attenuation conditions of the incident light intensity after the near infrared light intensity signal passes through the liquid to be measured, and the light intensity signal is as high as the measured liquid phase concentration beta l Related to the following.
Referring to fig. 4, a cumulative modular parameter logging tool control system is applied to a horizontal well gas-liquid two-phase flow cumulative modular parameter logging tool, and comprises a light emitting module, a light receiving module, a signal processing module, a multichannel program control switch, a motor driving circuit module, a relay module, a power module, a main controller module, a timer module and a visualization module.
The light emitting module is used for providing driving electric energy for the near infrared emitting device so that the near infrared light source emits light rays;
a light receiving module for converting light energy in the near infrared receiving device into electric energy;
the signal processing module is used for carrying out differential, amplification and analog-to-digital conversion operation on the received electric signals and outputting voltage signals reflecting the gas holding rate information;
a multichannel program-controlled switch for controlling m (m is more than or equal to 3, m is less than or equal to N) in a near infrared absorption type optical fiber detection system 3-6 * ) The near infrared absorption type optical fiber sensors distributed in an axial staggered manner are used for time-sharing switching operation;
the relay module is used for controlling the opening and closing states of the controllable liquid inlet 3-3 and the controllable liquid outlet 3-2;
a motor driving circuit module for supplying electric power to the small-sized motor 3-1;
a main controller module for controlling the working state of the small motor and m (m is more than or equal to 3, m is less than or equal to N) in the axial near infrared absorption type optical fiber detection system 3-6 * ) The working states of the near infrared transmitting devices and the near infrared receiving devices which are axially staggered in groups;
the power module is used for providing electric energy for each module;
the timer module is connected with the main controller module, and utilizes the main controller module to detect m (m is more than or equal to 3, m is less than N) in the axial near infrared absorption type optical fiber detection system 3-6 * ) The near infrared absorption type optical fiber sensors distributed in an axial staggered manner are used for time-sharing data acquisition;
and a visualization module: for providing a visual operation interface to the system.
Referring to fig. 5, taking m=7 and k=3 as an example, the control steps of the control system are as follows:
s1, installing the logging instrument in a gas-liquid stratified flow stabilizing region of a shale gas horizontal well, and opening a rubber current collector 4, a controllable liquid inlet 3-3 and a controllable liquid outlet 3-2 to enable the cumulative modularized parameter logging instrument to enter a working state;
s2, under the condition of gas-liquid stratified flow of the shale gas horizontal well, fluid flows into the controllable rotary accumulation bin 3 of the logging instrument through the circumferential liquid inlet, and after a period of time, the main controller module closes the controllable liquid inlet 3-3 and the controllable liquid outlet 3-2 to block the fluid from continuously flowing into the controllable rotary accumulation bin 3;
s3, combining an azimuth sensor and an angle sensor, and rotating the controllable rotary accumulation bin 3 by a certain angle to enable the near infrared absorption type optical fiber detection system 3-6 to be parallel to the bottom surface;
s4, when the fluid is subjected to gas-liquid separation, the upper layer is a gas phase, and the lower layer is a liquid phase; the response value of the near infrared absorption type optical fiber sensor in the controllable rotary accumulation bin 3 is sequentially obtained by utilizing the near infrared absorption type optical fiber detection system 3-6 in a time sharing way, and the high and low level mutation positions of the near infrared absorption type optical fiber sensor are further calculated; determining the accumulated height of the gas phase in the accumulation bin cavity 3-5 according to the position of the abrupt change, and further calculating the gas flow of the gas phase in the cavity, so as to realize effective measurement of the gas flow and the gas content under the condition of the gas-liquid stratified flow of the shale gas horizontal well;
s5, based on response values of the axial near-infrared absorption type optical fiber detection systems in the plurality of controllable rotary accumulation bins 3, average values of the cumulative modular parameter logging instrument gas flow parameters and gas content parameters are obtained.
S6, after the measurement is finished, the next measurement is carried out.
The above description of the embodiments is only for helping to understand the method and the core idea of the present invention, and the described embodiments are only some embodiments, but not all embodiments, of a horizontal well gas-liquid two-phase flow cumulative modular parameter logging instrument and system in the shale gas monitoring field based on the core idea of the present invention, which belong to the protection scope of the present invention.
Claims (5)
1. The utility model provides a horizontal well gas-liquid two-phase flow cumulative modular parameter logging instrument which characterized in that: the intelligent centralized control system comprises a circuit bin (7), a centralizer II (6), a liquid inlet pipeline (5) with a plurality of liquid inlets in the circumferential direction, a rubber current collector (4), a controllable rotary accumulating bin (3) sleeved with a centralizer I (2) and a liquid outlet pipeline (1), wherein the liquid outlet pipeline (1) is provided with a liquid outlet, and one or more groups of chokeless accumulating type parameter measuring modules (8) are further connected between the controllable rotary accumulating bin (3) and the liquid outlet pipeline (1); the non-flow accumulation type parameter measurement module (8) comprises a circuit bin (7) connected with the outlet end of the controllable rotary accumulation bin (3), a rubber current collector (4) and the controllable rotary accumulation bin (3) sleeved with a centralizer I (2);
the controllable rotary accumulation bin (3) comprises an accumulation bin cavity (3-5), wherein a controllable liquid inlet (3-3) is formed in the bottom of one side, close to the rubber current collector (4), of the accumulation bin cavity (3-5), and a controllable liquid outlet (3-2) is formed in the bottom of one side, close to the liquid outlet pipeline (1); the outer side of the middle part of the accumulation bin cavity (3-5) is provided with a shell groove, and a sealing ring (3-4) is sleeved in the shell groove; near infrared absorption type optical fiber detection systems (3-6) are arranged on the end surfaces of the two sides of the accumulation bin cavity (3-5), and a small motor (3-1) is connected to the end surface of one side, close to the liquid outlet pipeline (1), of the accumulation bin cavity (3-5);
the near infrared absorption type optical fiber detection system (3-6) consists of m groups of near infrared absorption type optical fiber sensors which are distributed in an axial staggered manner, wherein m is more than or equal to 3, and m is less than N * The method comprises the steps of carrying out a first treatment on the surface of the The sensitive areas of the near infrared absorption type optical fiber sensors are all in the controllable rotary accumulation bin (3); the near infrared absorption type optical fiber sensor comprises a near infrared emission device and a near infrared receiving device; m groups of near infrared absorption optical fiber sensors are distributed on two end surfaces of the accumulation bin, and m is more than or equal to 3, m is less than N * The distance between two groups of near infrared absorption optical fiber sensors longitudinally adjacent to each other on the end face of the accumulation bin is equal and the transverse positions are staggered, k end face separation lines are arranged on the end face of the accumulation bin longitudinally, k is more than or equal to 3, and k is less than N * The m groups of near infrared absorption optical fiber sensors are uniformly arranged on a longitudinal end surface separation line of the end surface of the accumulation bin.
2. The horizontal well gas-liquid two-phase flow accumulating type modular parameter logging instrument according to claim 1, wherein: the near infrared transmitting device and the near infrared receiving device are connected with the accumulation bin cavity (3-5) in a threaded sealing mode, and the small motor (3-1) is connected with the accumulation bin cavity (3-5) in a threaded mode.
3. The horizontal well gas-liquid two-phase flow accumulating type modular parameter logging instrument according to claim 1, wherein: and a circuit system, an azimuth sensor and an angle sensor are arranged in the circuit bin (7).
4. A cumulative modular parameter logging tool control system applied to the horizontal well gas-liquid two-phase flow cumulative modular parameter logging tool according to any one of claims 1-3, comprising:
the light emitting module is used for providing driving electric energy for the near infrared emitting device so that the near infrared light source emits light rays;
a light receiving module for converting light energy in the near infrared receiving device into electric energy;
the signal processing module is used for carrying out differential, amplification and analog-to-digital conversion operation on the received electric signals and outputting voltage signals reflecting the gas holding rate information;
the multichannel program-controlled switch is used for carrying out time-sharing switching operation on m groups of near infrared absorption type optical fiber sensors which are distributed in an axial staggered manner in a near infrared absorption type optical fiber detection system (3-6), wherein m is more than or equal to 3, and m is less than N * ；
The relay module is used for controlling the opening and closing states of the controllable liquid inlet (3-3) and the controllable liquid outlet (3-2);
the motor driving circuit module is used for providing electric energy for the small-sized motor;
the main controller module is used for controlling the working state of the small motor and the working state of m groups of near infrared transmitting devices and near infrared receiving devices which are arranged in an axial staggered manner in the axial near infrared absorption type optical fiber detection system (3-6), wherein m is more than or equal to 3, and m is less than N * ；
The power module is used for providing electric energy for each module;
the timer module is connected with the main controller module, and utilizes the main controller module to feed m groups of near infrared absorption type optical fiber sensors which are distributed in an axial staggered manner in the axial near infrared absorption type optical fiber detection system (3-6)Line time-sharing data acquisition, wherein m is more than or equal to 3, and m is E N * ；
And a visualization module: for providing a visual operation interface to the system.
5. The cumulative modular parameter tool control system according to claim 4, wherein: the control system comprises the following control steps:
s1, installing the logging instrument in a gas-liquid stratified flow stabilizing area of a shale gas horizontal well, and opening a rubber current collector (4), a controllable liquid inlet (3-3) and a controllable liquid outlet (3-2) to enable the cumulative modularized parameter logging instrument to enter a working state;
s2, under the condition of gas-liquid stratified flow of the shale gas horizontal well, fluid flows into a controllable rotary accumulation bin (3) of the logging instrument through a circumferential liquid inlet, and after a period of time, a main controller module closes the controllable liquid inlet (3-3) and the controllable liquid outlet (3-2) to block the fluid from continuously flowing into the controllable rotary accumulation bin (3);
s3, combining an azimuth sensor and an angle sensor, and rotating the controllable rotary accumulation bin (3) by a certain angle to enable the near infrared absorption type optical fiber detection system (3-6) to be parallel to the bottom surface;
s4, when the fluid is subjected to gas-liquid separation, the upper layer is a gas phase, and the lower layer is a liquid phase; the response value of the near infrared absorption type optical fiber sensor in the controllable rotary accumulation bin (3) is sequentially obtained in a time-sharing manner by utilizing the near infrared absorption type optical fiber detection system (3-6), and the high and low level mutation position of the near infrared absorption type optical fiber sensor is further calculated; determining the accumulated height of the gas phase in the accumulation bin cavity (3-5) according to the position of the abrupt change, and further calculating the gas flow of the gas phase in the cavity, so as to realize effective measurement of the gas flow and the gas content under the condition of the gas-liquid stratified flow of the shale gas horizontal well;
s5, based on response values of the axial near-infrared absorption type optical fiber detection systems in the plurality of controllable rotary accumulation bins (3), acquiring average values of the airflow parameters and the gas content parameters of the accumulated modularized parameter logging instrument;
s6, after the measurement is finished, the next measurement is carried out.
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