One-trip comprehensive water exploration equipment and water exploration method for coiled tubing oil and gas well

Abstract

The equipment comprises an oil pipe output device, an oil pipe guiding device and an optical fiber continuous oil pipe, the tail end of the optical fiber continuous oil pipe penetrates through the oil pipe guiding device from top to bottom, and the oil pipe output device enables the optical fiber continuous oil pipe to stretch into a sleeve in the oil-gas well through the oil pipe guiding device. An optical fiber extending in the same direction is installed in the optical fiber continuous oil pipe, the head end of the optical fiber is connected with a distributed optical fiber temperature sensing modulation-demodulation instrument and a distributed optical fiber sound wave sensing modulation-demodulation instrument, and an array type output profile tester working independently is installed at the tail end of the optical fiber continuous oil pipe. The data validity can be mutually verified, the accuracy of analysis and interpretation is higher, the theoretical basis of interpretation results is stronger, the collection of two types of process water exploration test data can be completed through one-time tripping-in, the operation period is greatly shortened, the well control risk is reduced, and meanwhile, the cost of manpower, equipment, materials, stopping and the like is saved. The invention further discloses a water exploration method applying the water exploration equipment.

Description

Technical Field

[0001] The present invention relates to the field of oil and gas collection, and in particular to a one-trip comprehensive water-finding device for coiled tubing oil and gas wells. Furthermore, the present invention also relates to a one-trip comprehensive water-finding method for coiled tubing oil and gas wells using the one-trip comprehensive water-finding device. Background Art

[0002] Oil and gas wells come in many types, including vertical, inclined, and horizontal wells. Horizontal wells, with their large contact area with the reservoir, are widely used in oil and gas reservoir development. Affected by wellbore trajectory, permeability heterogeneity, heel-toe effects, and the degree of water avoidance, problems such as bottom water ridge intrusion, edge water coning, and waterout can occur, leading to severe productivity losses, reduced oil and gas recovery rates, and severely impacting oil and gas field development. Therefore, water detection in oil and gas wells, especially horizontal wells, is crucial for reducing water loss and increasing oil and gas production.

[0003] Domestic and foreign oil and gas fields have carried out various tests on horizontal well water exploration, mostly using distributed temperature and array instruments to carry out single tests. There is a lack of distributed acoustic wave data acquisition, and the accuracy of distributed optical fiber test data needs to be verified. In addition, the operation cycle has been significantly lengthened and the construction cost has increased exponentially.

[0004] Therefore, how to provide a one-trip comprehensive water-finding device for continuous tubing oil and gas wells is a technical problem that those skilled in the art currently need to solve. Summary of the Invention

[0005] The present invention aims to provide a one-trip, comprehensive water-finding device for coiled tubing oil and gas wells. Multiple water-finding methods work together to collect water-finding test data from two different processes in a single run, significantly shortening the operation cycle and reducing well control risks. Another object of the present invention is to provide a one-trip, comprehensive water-finding method for coiled tubing oil and gas wells utilizing the above-described one-trip, comprehensive water-finding device.

[0006] In order to solve the above technical problems, the present invention provides a one-trip comprehensive water-finding equipment for continuous oil tubing oil and gas wells, comprising an oil tubing output device, an oil tubing guide device and an optical fiber continuous oil tubing, the head end of the optical fiber continuous oil tubing is coiled around the oil tubing output device, the oil tubing guide device is installed above the vertical entrance of the oil and gas well, the end of the optical fiber continuous oil tubing passes through the oil tubing guide device from top to bottom, the oil tubing output device extends the optical fiber continuous oil tubing into the casing in the oil and gas well through the oil tubing guide device, optical fibers extending in the same direction are installed in the optical fiber continuous oil tubing, the head end of the optical fiber is connected to a distributed optical fiber temperature sensor modulator and a distributed optical fiber acoustic wave sensor modulator, and the end of the optical fiber continuous oil tubing is installed with an independently working array-type production profile tester.

[0007] Preferably, the array-type production profile tester includes a flow rate detector, a water holdup detector and a resistivity detector.

[0008] Preferably, a front bow centralizer and a rear bow centralizer are installed at both ends of the array-type production profile tester, respectively. A guide head is provided at the end of the front bow centralizer, and the head end of the rear bow centralizer is connected to the end of the fiber optic coiled tubing through a short section group and a valve group.

[0009] Preferably, the valve group includes a double-valve check valve, a hydraulic release valve and a bypass valve connected in sequence, and the pup joint group includes a rotary pup joint and a flexible pup joint connected in sequence. The head end of the double-valve check valve is connected to the end of the fiber optic coiled tubing through a connector, the end of the bypass valve is connected to the head end of the rotary pup joint through a buckle, and the end of the flexible pup joint is connected to the head end of the rear bow centralizer. A tail end blind plug seal is installed at the end of the fiber optic coiled tubing.

[0010] Preferably, both the fiber optic coiled tubing and the array-type production profile tester are provided with depth detectors.

[0011] The present invention provides a one-trip comprehensive water finding method for a coiled tubing oil and gas well, which uses the one-trip comprehensive water finding device for a coiled tubing oil and gas well as described in any one of the above, comprising the following steps:

[0012] Install fiber-optic coiled tubing and array-type production profile tester, and debug equipment parameters;

[0013] Installing an array-type production profile tester, outputting the optical fiber coiled tubing into the oil and gas well, and pushing the array-type production profile tester into the oil and gas well;

[0014] Controlling the array-type output profile tester to collect data on the water production system, and controlling the distributed optical fiber temperature sensor modem and the distributed optical fiber acoustic wave sensor modem to collect data on the temperature and acoustic wave vibration water production system through optical fibers;

[0015] Taking out the fiber optic coiled tubing and the array-type production profile tester;

[0016] Data were extracted and analyzed and interpreted.

[0017] Preferably, the installation of the fiber optic coiled tubing and debugging of equipment parameters include the following steps:

[0018] Install and place the oil pipe output device and oil pipe guide device;

[0019] Splice fiber optic jumpers and lay out optical fibers;

[0020] Extinguish and seal the optical fibers at both ends of the optical fiber coiled tubing;

[0021] Install and place the distributed fiber optic temperature sensor modem and distributed fiber optic acoustic wave sensor modem and connect the optical fibers;

[0022] Debug the distributed fiber optic temperature sensor modem, distributed fiber optic acoustic sensor modem and electronic pressure gauge of the array output profile tester.

[0023] Preferably, the installation of the array-type production profile tester, the output of the optical fiber coiled tubing into the oil and gas well, and the pushing of the array-type production profile tester into the oil and gas well include the following steps:

[0024] Installing an array-type production profile tester at the end of the optical fiber coiled tubing;

[0025] Measuring the overall insulation condition of the array-type production profile tester pipe string using a resistance insulation meter;

[0026] The continuous pipeline is output into the oil and gas well to push the array-type production profile tester into the oil and gas well.

[0027] Preferably, the controlling the array-type output profile tester to collect water production system data, and controlling the distributed optical fiber temperature sensor modem and the distributed optical fiber acoustic wave sensor modem to realize temperature and acoustic wave vibration water production system data collection through optical fiber comprises the following steps:

[0028] Controlling the array-type production profile tester to adjust the water production rate according to the nozzle, and collecting data according to different lowering and pulling-out speeds;

[0029] When the wellhead pressure fluctuation is less than a specific value within a fixed time period, the distributed optical fiber temperature sensor modem and the distributed optical fiber acoustic wave sensor modem are controlled to collect data.

[0030] Preferably, the data extraction and analysis and interpretation comprises the steps of:

[0031] The array-type output profile tester, the distributed optical fiber temperature sensor modem and the distributed optical fiber acoustic wave sensor modem are controlled to respectively perform depth calibration and collect data analysis and interpretation, and the interpretation result report is formed for comparative verification.

[0032] The present invention provides a one-trip comprehensive water-finding device for continuous oil tubing oil and gas wells, comprising an oil tubing output device, an oil tubing guide device and an optical fiber continuous oil tubing. The head end of the optical fiber continuous oil tubing is coiled around the oil tubing output device, the oil tubing guide device is installed above the vertical inlet of the oil and gas well, the tail end of the optical fiber continuous oil tubing passes through the oil tubing guide device from top to bottom, the oil tubing output device extends the optical fiber continuous oil tubing into the casing in the oil and gas well through the oil tubing guide device, optical fibers extending in the same direction are installed in the optical fiber continuous oil tubing, the head end of the optical fiber is connected to a distributed optical fiber temperature sensor modulator and a distributed optical fiber acoustic wave sensor modulator, and the tail end of the optical fiber continuous oil tubing is installed with an independently working array-type production profile tester.

[0033] Distributed temperature, acoustic water finding and FAST array instrument water finding test methods are applied in a one-trip comprehensive manner, which can simultaneously obtain multiple types of data such as distributed temperature, distributed acoustic vibration, flow rate, water holdup, resistivity, etc. in the entire wellbore. The data acquisition volume is larger and more comprehensive, and the validity of the data can be verified with each other. The accuracy of analysis and interpretation is also higher, and the theoretical basis of the interpretation results is stronger. Since the collection of two types of process water finding test data is completed in one trip, the operation cycle is greatly shortened, the well control risk is reduced, and many costs such as manpower, equipment, materials, and waiting are saved. At the same time, the reduction in well opening time also effectively reduces the well control risk, making the positioning of the underground water outlet more accurate, and the water outlet of each cluster can be quantitatively obtained, thereby providing an intuitive and reliable basis for precise water plugging.

[0034] The present invention also provides a water-finding method using the above-mentioned water-finding device. Since the above-mentioned water-finding device has the above-mentioned technical effects, the above-mentioned water-finding method should also have the same technical effects, which will not be introduced in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a structural schematic diagram of a specific embodiment of the one-trip comprehensive water-finding equipment for coiled tubing oil and gas wells provided by the present invention;

[0036] Figure 2 This is a structural schematic diagram of an array-type production profile tester in a specific implementation of the one-trip comprehensive water-finding equipment for coiled tubing oil and gas wells provided by the present invention.

[0037] Among them, there are tubing output device 1, tubing guide device 2, fiber optic coiled tubing 3, optical fiber 4, distributed fiber optic temperature sensor modem 5, distributed fiber optic acoustic wave sensor modem 6, array production profile tester 7, front bow centralizer 8, rear bow centralizer 9, guide head 10, double-valve check valve 11, hydraulic release 12, bypass valve 13, rotary short section 14, flexible short section 15, connector 16, tail end blind plug seal 17, casing 18, and perforation cluster 19. DETAILED DESCRIPTION

[0038] The core of this invention is to provide a one-trip, comprehensive water-finding device for coiled tubing oil and gas wells. Multiple water-finding methods work together to collect water-finding test data from two different processes in a single run, significantly shortening the operation cycle and reducing well control risks. Another core of this invention is to provide a one-trip, comprehensive water-finding method for coiled tubing oil and gas wells using this one-trip, comprehensive water-finding device.

[0039] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0040] Please refer to Figure 1 and Figure 2 , Figure 1 This is a structural schematic diagram of a specific embodiment of the one-trip comprehensive water-finding equipment for coiled tubing oil and gas wells provided by the present invention; Figure 2 This is a structural schematic diagram of an array-type production profile tester in a specific implementation of the one-trip comprehensive water-finding equipment for coiled tubing oil and gas wells provided by the present invention.

[0041] A specific embodiment of the present invention provides a one-trip comprehensive water-finding device for a coiled tubing oil and gas well, comprising a tubing output device 1, a tubing guide device 2, and a fiber optic coiled tubing 3, wherein the tubing output device 1 and the tubing guide device 2 are placed on the ground, and when the circular drum of the tubing output device 1 rotates, a slip ring device is provided to allow the optical fiber at the fusion joint to rotate synchronously, so that the fiber optic coiled tubing 3 can enter smoothly, the tubing guide device 2 is arranged vertically up and down, with the lower end being the wellhead and the upper end being provided with an arc-shaped guide groove, the tubing guide device 2 is installed above the vertical entrance of the oil and gas well, the end of the fiber optic coiled tubing 3 passes through the tubing guide device 2 from top to bottom, and the tubing output device 1 extends the fiber optic coiled tubing 3 through the tubing guide device 2 into the casing 18 in the oil and gas well. In this embodiment, a horizontal well is taken as an example, a casing 18 is provided in the horizontal well, and a perforation cluster 19 is provided outside the casing 18. A plurality of optical fibers 4 extending in the same direction are installed in the optical fiber coiled tubing 3. The head ends of the optical fibers 4 are connected to a distributed optical fiber temperature sensor modulator-demodulator 5 and a distributed optical fiber acoustic wave sensor modulator-demodulator 6. The optical fibers 4 are used to collect temperature and acoustic vibration water-finding production system data. The collected data are then modulated and demodulated by the distributed optical fiber temperature sensor modulator-demodulator 5 and the distributed optical fiber acoustic wave sensor modulator-demodulator 6. An independent array-type production profile tester 7 is installed at the end of the optical fiber coiled tubing 3 to test the production of oil, gas and water, and can collect various water-finding data such as flow rate, water holdup and resistivity.

[0042] It can simultaneously obtain multiple types of data such as distributed temperature, distributed acoustic vibration, flow rate, water holdup, resistivity, etc. in the entire wellbore. The amount of data acquired is larger and more comprehensive, which can verify the validity of the data. The accuracy of analysis and interpretation is also higher, and the theoretical basis of the interpretation results is stronger. Since the collection of two types of process water-finding test data can be completed in one trip, the operation cycle is greatly shortened, the well control risk is reduced, and many costs such as manpower, equipment, materials, and waiting are saved. At the same time, the reduction in well opening time also effectively reduces the well control risk, making the positioning of the underground water outlet more accurate, and the water outlet of each cluster can be quantitatively obtained, thereby providing an intuitive and reliable basis for precise water plugging.

[0043] Specifically, the array-type production profile tester 7 includes a flow rate detector, a water holdup detector and a resistivity detector.

[0044] To improve the stability of the arrayed production profiler 7, a front bow centralizer 8 and a rear bow centralizer 9 are installed at each end of the arrayed production profiler 7. A guide head 10 is installed at the end of the front bow centralizer 8 to ensure smooth movement of the arrayed production profiler 7. The head end of the rear bow centralizer 9 is connected to the end of the fiber-optic coiled tubing 3 through a short section assembly and a valve assembly.

[0045] Furthermore, the valve group includes a double-valve check valve 11, a hydraulic release 12 and a bypass valve 13 connected in sequence, which together realize well control and blowout prevention and prevent the instrument pipe from getting stuck in the well. The short section group includes a rotating short section 14 and a flexible short section 15 connected in sequence to realize the flexible movement of the array production profile tester 7. The head end of the double-valve check valve 11 is connected to the end of the optical fiber continuous oil pipe 3 through a connector 16, the end of the bypass valve 13 is connected to the head end of the rotating short section 14 through a variable buckle, and the end of the flexible short section 15 is connected to the head end of the rear bow stabilizer 9. The end of the optical fiber continuous oil pipe 3 is installed with a tail end blind plug seal 17, which has the functions of optical fiber tail end extinction, sealing, and high pressure bearing, to prevent the optical fiber from entering the liquid and interfering with the test.

[0046] Building upon the one-trip integrated water-finding equipment for coiled tubing oil and gas wells provided in the aforementioned embodiments, both the fiber-optic coiled tubing 3 and the array-type production profiler 7 are equipped with depth detectors. Specifically, the fiber-optic coiled tubing 3 is equipped with an optical-to-electrical encoding depth calibrator, while the array-type production profiler 7 is equipped with a positioning depth detector, which itself has a positioning and depth calibration function.

[0047] A specific embodiment of the present invention provides a one-trip comprehensive water finding method for a coiled tubing oil and gas well, using any one of the above-mentioned one-trip comprehensive water finding equipment for a coiled tubing oil and gas well, comprising the following steps:

[0048] Install the fiber optic coiled tubing 3 and the array-type production profile tester 7, and debug the equipment parameters, including preparation of the fiber optic coiled tubing 3, fiber optic on-off loss test, electronic pressure gauge parameter setting, array-type production profile tester 7 debugging, and installation of the fiber optic sealing tool.

[0049] Control additional hollow coiled tubing to flush sand and clear the well;

[0050] Install the array-type production profile tester 7, output the fiber-optic coiled tubing 3 into the oil and gas well, and push the array-type production profile tester 7 into the oil and gas well;

[0051] Control array-type output profile tester 7 to collect water production system data, and control distributed optical fiber temperature sensor modem 5 and distributed optical fiber acoustic wave sensor modem 6 to collect temperature and acoustic wave vibration water production system data through optical fiber;

[0052] Take out the fiber optic coiled tubing 3 and the array-type production profile tester 7;

[0053] After the test is completed, the data is extracted and analyzed and interpreted to obtain results and provide production guidance.

[0054] Preferably, installing the fiber optic coiled tubing 3 and debugging the equipment parameters include the following steps:

[0055] Install and place the tubing output device 1 and tubing guide device 2; fusion-splice fiber jumpers and lay the optical fibers; extinct and seal the optical fibers at both ends of the fiber-optic coiled tubing 3; install and place the distributed fiber-optic temperature sensor modem 5 and distributed fiber-optic acoustic wave sensor modem 6, connect the optical fibers, and lay the power lines overhead; debug the electronic pressure gauges of the distributed fiber-optic temperature sensor modem 5, distributed fiber-optic acoustic wave sensor modem 6, and array-type production profile tester 7 to ensure that the continuity, insulation, sensors, and probes are normal. The fiber-optic sealing tool must undergo sealing, temperature resistance, and pressure resistance tests in advance to ensure that it meets the requirements for well entry. Specifically, when the distributed fiber-optic temperature sensor modem 5 and distributed fiber-optic acoustic wave sensor modem 6 are connected to the optical fiber for fiber continuity and loss testing, the jumper connection must be clean and low-attenuation, and the jumper should not be too long. The distributed fiber-optic temperature sensor modem 5 and distributed fiber-optic acoustic wave sensor modem 6 should be placed in a relatively quiet and ventilated indoor environment. The array-type production profile tester 7 and the electronic pressure gauge must have sufficient power to maintain sufficient power throughout the data collection process. The distributed fiber-optic temperature sensor modem 5 and the distributed fiber-optic acoustic wave sensor modem 6 collect large amounts of data, so a large storage device must be prepared in advance. The fiber-optic routing process must be supported and secured to prevent wind movement or interference from external objects. The sampling frequency of the distributed fiber-optic temperature sensor modem 5 and the distributed fiber-optic acoustic wave sensor modem 6 must be set to meet the actual requirements of the on-site formation and well conditions, especially the temperature gradient of oil, gas, and water, and the acoustic vibration frequency must be within the appropriate range.

[0056] Controlling another hollow coiled tubing sand flushing well includes the following steps:

[0057] Select the appropriate tool string combination and size based on the well conditions and casing size. Run the coiled tubing as far as possible to the bottom of the artificial wellbore to ensure maximum depth. Record any obstructions or blockages encountered along the way and adjust the string composition and size accordingly. During the coiled tubing sand flushing and drilling process, record the hanging weight data in detail. For any abnormalities, record the time, depth, and location, along with complete notes on the abnormality.

[0058] The steps of installing the array-type production profile tester 7, outputting the optical fiber coiled tubing 3 into the oil and gas well, and pushing the array-type production profile tester 7 into the oil and gas well include:

[0059] The array-type production profile tester 7 is installed at the end of the optical fiber coiled tubing 3; the overall insulation condition of the array-type production profile tester 7 string is measured using a resistance insulation meter; a continuous pipeline is output into the oil and gas well, and the array-type production profile tester 7 is pushed into the oil and gas well.

[0060] Specifically, after installation is complete, the overall insulation of the array-type production profiler 7 is measured with a resistance insulation meter to prevent short circuits. During lowering, the array-type production profiler 7 must be passed slowly through the wellhead blowout preventer at a low speed, closely monitoring changes in the suspended weight. After reaching a certain position, the array-type production profiler 7 is calibrated and subsequently lowered at the normal speed specified in the construction design. If resistance is encountered before reaching the desired depth, a metal drag reducer is pumped in at a fixed displacement and slowly lowered to the desired depth. Pay attention to the installation sequence, the positive and negative poles of the power short joint, the tightening torque, and measure the continuity and insulation again after the connection is completed to prevent the liquid from short-circuiting or being non-conductive during the connection process; when running in, when passing the blowout preventer and the fracturing wellhead, the speed should not be too fast and should not exceed the construction design value. Pay close attention to the changes in the hanging weight; slowly pass through the tubing head, and after passing, try running a short distance to observe the operation of the equipment. When the optical fiber continuous tubing 3 instrument string is run in several specific distances, make eye-catching marks in front of the counter respectively. It is advisable to use eye-catching color, wear-resistant oil-based markers, paint brushes, etc. that are not easy to be washed away; after running down to a certain distance, start calibrating the data of the array production profile tester 7, and execute different running speeds according to regulations at different running positions, and record the hanging weight each time.

[0061] After completing the data calibration of the arrayed production profiler 7, data collection for different production regimes began. Using two water-finding methods, water-finding data for both production regimes was collected in a single trip. First, data collection for the arrayed production profiler 7 was completed for the water-finding production regime. The arrayed production profiler 7 was then used to complete data collection for all production regimes using the distributed fiber-optic water-finding system. The relocation of large equipment within the wellsite near the fiber optic layout was minimized to avoid vibration interference.

[0062] Controlling the array-type output profile tester 7 to collect water production system data, and controlling the distributed optical fiber temperature sensor modem 5 and the distributed optical fiber acoustic wave sensor modem 6 to collect temperature and acoustic wave vibration water production system data through optical fiber includes the following steps:

[0063] The array-type production profile tester 7 is controlled to adjust the water production according to the nozzle and collect data according to different lowering and pulling speeds;

[0064] When wellhead pressure fluctuations are less than a specified value within a fixed time period, testing conditions are considered met, and the distributed fiber optic temperature sensor modem 5 and the distributed fiber optic acoustic sensor modem 6 are controlled to collect data. Production testing is conducted using at least two operating schedules, from high to low production: the first schedule is based on the production rate before the test; the second schedule is based on half of the production rate before the test. If there are three operating schedules, the first schedule is based on the production rate before the test, and the second and third schedules are based on two-thirds and one-third of the production rate before the test, respectively. This same rule applies to multiple production schedules.

[0065] After the distributed optical fiber temperature and acoustic water detection data are collected, the optical fiber coiled tubing 3 and the array-type production profile tester 7 are pulled out. The pulling speed strictly complies with the construction design requirements to avoid damaging the instruments and equipment too quickly and increasing the well control risk and operation cost too slowly.

[0066] Based on the one-trip comprehensive water finding method for coiled tubing oil and gas wells provided in the above specific embodiments, data extraction and analysis and interpretation include the following steps:

[0067] After the fiber-optic coiled tubing 3 and array-type production profile tester 7 are pulled out of the wellhead, the wellhead valve is closed, the blowout preventer is depressurized, and the test is completed. The instrument string is disassembled from the bottom up to extract valid data. The fiber-optic coiled tubing 3 depth encoder and the array-type production profile tester 7 both have depth calibration functions, allowing for depth calibration and analysis and interpretation of collected data, respectively. The interpretation results report is then compared and verified. Depth calibration data must be precise and accurate. The accuracy of the water-finding test report depends critically on the accuracy of the positioning and depth calibration data. The water-finding interpretation data from the array-type production profile tester 7 is then compiled into interpretation reports alongside the distributed fiber-optic temperature and acoustic vibration water-finding interpretation data, forming a back-to-back verification. The verification results are then summarized to form a comprehensive interpretation report for the water-finding test. The comprehensive interpretation report is submitted, combined with the interpretation model to qualitatively identify the water-producing strata, quantitatively calculate the water yield of the water-producing segments and clusters, and provide water-blocking solutions and recommendations to guide production plan optimization and improve oil and gas reservoir recovery.

[0068] The above provides a detailed introduction to the one-trip integrated water-finding equipment and method for coiled tubing oil and gas wells provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above examples is intended only to facilitate understanding of the method and core concepts of the present invention. It should be noted that those skilled in the art will be able to make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the claims of the present invention.

Claims

1. A one-trip integrated water-finding device for coiled tubing oil and gas wells, characterized in that: The invention comprises an oil pipe output device (1), an oil pipe guide device (2) and an optical fiber continuous oil pipe (3), wherein the head end of the optical fiber continuous oil pipe (3) is coiled on the oil pipe output device (1), the oil pipe guide device (2) is installed above the vertical inlet of the oil and gas well, the end of the optical fiber continuous oil pipe (3) passes through the oil pipe guide device (2) from top to bottom, the oil pipe output device (1) extends the optical fiber continuous oil pipe (3) through the oil pipe guide device (2) into the casing (18) in the oil and gas well, an optical fiber (4) extending in the same direction is installed in the optical fiber continuous oil pipe (3), the head end of the optical fiber (4) is connected to a distributed optical fiber temperature sensor modulator (5) and a distributed optical fiber acoustic wave sensor modulator (6), and the end of the optical fiber continuous oil pipe (3) is installed with an independently working array-type production profile tester (7).

2. The one-trip comprehensive water-finding equipment for coiled tubing oil and gas wells according to claim 1, characterized in that: The array-type production profile tester (7) includes a flow rate detector, a water holdup detector, and a resistivity detector.

3. The one-trip comprehensive water-finding equipment for coiled tubing oil and gas wells according to claim 2, characterized in that: A front bow centralizer (8) and a rear bow centralizer (9) are respectively installed at both ends of the array-type production profile tester (7), a guide head (10) is provided at the end of the front bow centralizer (8), and the head end of the rear bow centralizer (9) is connected to the end of the optical fiber continuous oil pipe (3) through a short section group and a valve group.

4. The one-trip comprehensive water-finding equipment for coiled tubing oil and gas wells according to claim 3, characterized in that: The valve group includes a double-valve check valve (11), a hydraulic release (12) and a bypass valve (13) connected in sequence, and the short section group includes a rotating short section (14) and a flexible short section (15) connected in sequence. The head end of the double-valve check valve (11) is connected to the end of the optical fiber continuous oil pipe (3) through a connector (16), the end of the bypass valve (13) is connected to the head end of the rotating short section (14) through a buckle, and the end of the flexible short section (15) is connected to the head end of the rear bow centralizer (9). The end of the optical fiber continuous oil pipe (3) is installed with a tail end blind plug seal (17).

5. The one-trip comprehensive water-finding equipment for coiled tubing oil and gas wells according to any one of claims 1 to 4, characterized in that: The optical fiber coiled tubing (3) and the array-type production profile tester (7) are both provided with depth detectors.

6. A one-trip comprehensive water finding method for coiled tubing oil and gas wells, characterized in that: The application of the one-trip integrated water-finding equipment for coiled tubing oil and gas wells as claimed in any one of claims 1 to 5 comprises the following steps: Installing the fiber optic coiled tubing (3) and the array-type production profile tester (7), and debugging the equipment parameters; An array-type production profile tester (7) is installed, the optical fiber coiled tubing (3) is output into the oil and gas well, and the array-type production profile tester (7) is pushed down into the oil and gas well; Controlling the array-type output profile tester (7) to collect data on the water production system, and controlling the distributed optical fiber temperature sensor modulator (5) and the distributed optical fiber acoustic wave sensor modulator (6) to collect data on the temperature and acoustic wave vibration water production system through optical fibers; Taking out the optical fiber coiled tubing (3) and the array-type production profile tester (7); Data were extracted and analyzed and interpreted.

7. The one-trip comprehensive water search method for coiled tubing oil and gas wells according to claim 6, characterized in that: The installation of the optical fiber coiled tubing (3) and the debugging of equipment parameters include the following steps: Install and place the oil pipe output device (1) and the oil pipe guide device (2); Splice fiber optic jumpers and lay out optical fibers; Extinguish and seal the optical fibers at both ends of the optical fiber continuous oil pipe (3); Installing and placing a distributed optical fiber temperature sensor modulator (5) and a distributed optical fiber acoustic wave sensor modulator (6) and connecting the optical fibers; Debug the electronic pressure gauges of the distributed optical fiber temperature sensor modem (5), the distributed optical fiber acoustic wave sensor modem (6) and the array output profile tester (7).

8. The one-trip comprehensive water finding method for coiled tubing oil and gas wells according to claim 7, characterized in that: The installation of the array-type production profile tester (7), the output of the optical fiber coiled tubing (3) into the oil and gas well, and the pushing of the array-type production profile tester (7) into the oil and gas well include the following steps: Installing an array-type production profile tester (7) at the end of the optical fiber coiled tubing (3); Measuring the overall insulation condition of the pipe string of the array-type production profile tester (7) by using a resistance insulation meter; The continuous pipeline is output into the oil and gas well, and the array-type production profile tester (7) is pushed down into the oil and gas well.

9. The one-trip comprehensive water finding method for coiled tubing oil and gas wells according to claim 8, characterized in that: The method of controlling the array-type output profile tester (7) to collect water production system data and controlling the distributed optical fiber temperature sensor modulation and demodulator (5) and the distributed optical fiber acoustic wave sensor modulation and demodulator (6) to collect temperature and acoustic wave vibration water production system data through optical fibers includes the following steps: Controlling the array-type production profile tester (7) to adjust the water production rate according to the nozzle, and collecting data according to different lowering and pulling-out speeds; When the wellhead pressure fluctuates less than a specific value within a fixed time period, the distributed optical fiber temperature sensor modulator (5) and the distributed optical fiber acoustic wave sensor modulator (6) are controlled to collect data.

10. The one-trip comprehensive water finding method for coiled tubing oil and gas wells according to any one of claims 6 to 9, characterized in that: The data extraction and analysis and interpretation include the following steps: The array-type output profile tester (7), the distributed optical fiber temperature sensor modulator (5), and the distributed optical fiber acoustic wave sensor modulator (6) are controlled to respectively perform depth calibration and analysis and interpretation of collected data, and the interpretation result report is formed for comparative verification.

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