A method and device for improving the detection frequency of a magnetic resonance multiphase flowmeter

Abstract

The present invention provides a method and device for improving the detection frequency of a magnetic resonance multiphase flowmeter, wherein the method comprises: obtaining echo data of phases included in a first group of complete phase cycles, and accumulating the echo data as data of a first measurement point; obtaining echo data of a first phase in a second group of phase cycles according to the order of the phases in the complete phase cycles, and accumulating the echo data of the first phase with the echo data of other phases in the first group of complete phase cycles as data of a second measurement point; obtaining echo data of a second phase in a third group of phase cycles, and accumulating the echo data of the first phase in the second group of phase cycles, the echo data of the second phase, and the echo data of other phases in the first group of complete phase cycles as data of a third measurement point; and continuing to perform measurements of several groups of phase cycles in this manner until the sampling measurement of the target measurement point is completed.

Description

Technical Field

[0001] The invention relates to a method and a device for improving the detection frequency of a magnetic resonance multiphase flowmeter, belonging to the technical field of oil and gas multiphase flow metering. Background Art

[0002] The magnetic resonance multiphase flowmeter can complete the real-time online detection of the flow of each phase of oil and gas without separating the three phases of oil, gas and water. As a green, efficient, high-frequency and high-precision multiphase flow detection method, it has broad application prospects in the future. When the magnetic resonance multiphase flowmeter is used for single well metering, it can be placed next to the single well lifting equipment to perform high-frequency detection of the oil well output fluid at the first time.

[0003] At present, the most mature application of magnetic resonance technology is still indoor static measurement, that is, the measurement is completed under the premise that the measured sample and the magnetic resonance probe remain relatively still. The reason is that the magnetic resonance signal intensity is very weak and can easily be drowned out by environmental noise and equipment noise. Therefore, it is necessary to measure the same sample multiple times and then accumulate the signal to improve the signal-to-noise ratio. However, unlike this type of application scenario, the magnetic resonance flowmeter requires measurement under the condition of continuous flow of the fluid, and the number of signal accumulation cannot be too many, otherwise it will cause several accumulated signals to come from fluids with large differences in flow rate or fluid properties, resulting in signal confusion and poor interpretability. This creates a contradiction, that is, the contradiction between improving the signal-to-noise ratio and increasing the measurement frequency, and it is urgent to propose a method that takes into account the above requirements.

[0004] In addition, the measurement frequency of the existing magnetic resonance multiphase flowmeter can reach up to 2 seconds / time, but it still does not meet the measurement accuracy requirements of flow states such as slug flow, and currently no method for further improving the measurement frequency of the magnetic resonance multiphase flowmeter has been proposed at home and abroad. Summary of the invention

[0005] In order to solve the above-mentioned shortcomings and deficiencies, an object of the present invention is to provide a method for improving the detection frequency of a magnetic resonance multiphase flowmeter.

[0006] Another object of the present invention is to provide a device for increasing the detection frequency of a magnetic resonance multiphase flowmeter.

[0007] Yet another object of the present invention is to provide a computer device.

[0008] Yet another object of the present invention is to provide a computer-readable storage medium.

[0009] The method and device for improving the detection frequency of a magnetic resonance multiphase flowmeter provided by the present invention can solve the problem that it is difficult to accurately measure the flow rate of slug flow due to the low detection frequency of the magnetic resonance multiphase flowmeter. While shortening the single measurement interval and significantly improving the measurement frequency of the magnetic resonance multiphase flowmeter, the method and device also retain many advantages of the phase cycle accumulation technology, such as improving the signal-to-noise ratio.

[0010] In order to achieve the above objectives, the present invention provides a method for improving the detection frequency of a magnetic resonance multiphase flowmeter, wherein the method comprises:

[0011] Acquire echo data of the phases included in the first set of complete phase cycles, and accumulate the echo data as data of the first measurement point;

[0012] Acquire the echo data of the first phase in the second group of phase cycles according to the order of the phases in the complete phase cycle, and accumulate the echo data of the first phase with the echo data of other phases in the first group of complete phase cycles as the data of the second measurement point;

[0013] Acquire the echo data of the second phase in the third group of phase cycles, and accumulate the echo data of the first phase in the second group of phase cycles, the echo data of the second phase, and the echo data of other phases in the first group of complete phase cycles as the data of the third measurement point;

[0014] Continue to perform several groups of phase cycle measurements in this way until the sampling measurement of the target measurement point is completed.

[0015] As a specific implementation of the above method of the present invention, the complete phase cycle includes two or four phases.

[0016] As a specific implementation of the above method of the present invention, when the complete phase cycle includes two phases, the method includes the following steps:

[0017] Acquire echo data of two phases in a first set of complete phase cycles, and accumulate the echo data as data of a first measurement point;

[0018] Acquire the echo data of the first phase in the second group of phase cycles, and add the echo data of the first phase and the echo data of the second phase in the first group of complete phase cycles as the data of the second measurement point;

[0019] Acquire the echo data of the second phase in the third group of phase cycles, and add the echo data of the first phase in the second group of phase cycles and the echo data of the second phase as the data of the third measurement point;

[0020] Continue to perform several groups of phase cycle measurements in this way until the sampling measurement of the target measurement point is completed.

[0021] As a specific implementation of the above method of the present invention, the two phases include a 0° phase and a 180° phase, or a 90° phase and a 270° phase.

[0022] As a specific implementation of the above method of the present invention, when the complete phase cycle includes four phases, the method includes the following steps:

[0023] Acquire echo data of four phases in a first set of complete phase cycles, and accumulate the echo data as data of a first measurement point;

[0024] Acquire the echo data of the first phase in the second group of phase cycles, and accumulate the echo data of the first phase with the echo data of the other three phases in the first group of complete phase cycles as the data of the second measurement point;

[0025] Acquire the echo data of the second phase in the third group of phase cycles, and accumulate the echo data of the first phase in the second group of phase cycles, the echo data of the second phase, and the echo data of the third and fourth phases in the first group of complete phase cycles as the data of the third measurement point;

[0026] Acquire the echo data of the third phase in the fourth phase cycle, and accumulate the echo data of the first phase in the second phase cycle, the echo data of the second phase in the third phase cycle, the echo data of the third phase, and the echo data of the fourth phase in the first complete phase cycle as the data of the fourth measurement point;

[0027] Acquire the echo data of the fourth phase in the fifth group of phase cycles, and add the echo data of the first phase in the second group of phase cycles, the echo data of the second phase in the third group of phase cycles, the echo data of the third phase in the fourth group of phase cycles, and the echo data of the fourth phase as the data of the fifth measurement point;

[0028] Continue to perform several groups of phase cycle measurements in this way until the sampling measurement of the target measurement point is completed.

[0029] As a specific implementation of the above method of the present invention, the four phases include a 0° phase, a 90° phase, a 180° phase and a 270° phase.

[0030] Phase cycling is the most effective method to eliminate ringing and improve signal-to-noise ratio in magnetic resonance measurement technology. Take the solenoid antenna as an example. Figure 1As shown, the direction of the solenoid antenna is set to the X-axis direction, and the 0-phase signal direction of the RF signal and the echo signal is the positive direction of the X-axis (X+), the 90° phase signal direction is the negative direction of the Y-axis (Y-), the 180° phase signal direction is the negative direction of the X-axis (X-), the 270° signal direction is the positive direction of the Y-axis (Y+), and the 360° phase returns to X+, and in this cycle, a set of phase cycles contains four phase RF signals of X+, Y-, X-, and Y+ in sequence. Usually, when performing magnetic resonance measurement, at least one set of four signals of the phase cycle is collected and accumulated to improve the signal-to-noise ratio. When encountering situations where the signal is particularly weak or decays particularly fast (such as micro-nano porous media, heavy oil sample detection), and the signal-to-noise ratio needs to be further improved, two or more sets of phase cycle signals can be collected.

[0031] As a specific implementation of the above method of the present invention, the echo data includes one or more echo data.

[0032] In the method described in the present invention, accumulation is a conventional technical means in the art, and those skilled in the art can select a suitable accumulation method to accumulate the echo data according to the needs of on-site operations.

[0033] On the other hand, the present invention also provides a device for improving the detection frequency of a magnetic resonance multiphase flowmeter, wherein the device for improving the detection frequency of a magnetic resonance multiphase flowmeter comprises:

[0034] A first data acquisition and processing unit, used for acquiring echo data of phases included in a first set of complete phase cycles, and accumulating the echo data as data of a first measurement point;

[0035] A second data acquisition and processing unit is used to acquire the echo data of the first phase in the second group of phase cycles according to the order of the phases in the complete phase cycle, and accumulate the echo data of the first phase with the echo data of other phases in the first group of complete phase cycles as the data of the second measurement point;

[0036] a third data acquisition and processing unit, configured to acquire the echo data of the second phase in the third group of phase cycles, and accumulate the echo data of the first phase in the second group of phase cycles, the echo data of the second phase, and the echo data of other phases in the first group of complete phase cycles as the data of the third measurement point;

[0037] The fourth data acquisition and processing unit is used to continue to perform several sets of phase cycle measurements in this manner until the sampling measurement of the target measurement point is completed.

[0038] As a specific implementation of the above device of the present invention, the complete phase cycle includes two or four phases.

[0039] As a specific embodiment of the above device of the present invention, when the complete phase cycle includes two phases, the device includes:

[0040] An echo data acquisition and processing unit for two phases in a first set of complete phase cycles, used to acquire echo data for two phases in the first set of complete phase cycles, and accumulate the echo data as data for a first measurement point;

[0041] an echo data acquisition and processing unit for the first phase in the second phase cycle, used for acquiring the echo data of the first phase in the second phase cycle, and accumulating the echo data of the first phase with the echo data of the second phase in the first complete phase cycle as data of the second measurement point;

[0042] an echo data acquisition and processing unit for the second phase in the third phase cycle, used to acquire the echo data of the second phase in the third phase cycle, and accumulate the echo data of the first phase in the second phase cycle with the echo data of the second phase as data of the third measurement point;

[0043] The first cycle process echo data acquisition and processing unit is used to continue to perform several groups of phase cycle measurements in this way until the sampling measurement of the target measurement point is completed.

[0044] As a specific implementation of the above device of the present invention, the two phases include a 0° phase and a 180° phase, or a 90° phase and a 270° phase.

[0045] As a specific embodiment of the above device of the present invention, when the complete phase cycle includes four phases, the device includes:

[0046] An echo data acquisition and processing unit for four phases in a first set of complete phase cycles, used to acquire echo data for four phases in the first set of complete phase cycles, and accumulate the echo data as data for a first measurement point;

[0047] an echo data acquisition and processing unit for the first phase in the second phase cycle, used for acquiring the echo data of the first phase in the second phase cycle, and accumulating the echo data of the first phase with the echo data of the other three phases in the first complete phase cycle as the data of the second measurement point;

[0048] an echo data acquisition and processing unit for the second phase in the third phase cycle, used to acquire the echo data for the second phase in the third phase cycle, and accumulate the echo data for the first phase in the second phase cycle, the echo data for the second phase, and the echo data for the third and fourth phases in the first complete phase cycle as data for the third measurement point;

[0049] an echo data acquisition and processing unit for the third phase in the fourth phase cycle, used to acquire the echo data of the third phase in the fourth phase cycle, and accumulate the echo data of the first phase in the second phase cycle, the echo data of the second phase in the third phase cycle, the echo data of the third phase and the echo data of the fourth phase in the first complete phase cycle as the data of the fourth measurement point;

[0050] an echo data acquisition and processing unit for the fourth phase in the fifth phase cycle, used to acquire the echo data of the fourth phase in the fifth phase cycle, and accumulate the echo data of the first phase in the second phase cycle, the echo data of the second phase in the third phase cycle, the echo data of the third phase in the fourth phase cycle and the echo data of the fourth phase as the data of the fifth measurement point;

[0051] The second cycle process echo data acquisition and processing unit is used to continue to perform several groups of phase cycle measurements in this way until the sampling measurement of the target measurement point is completed.

[0052] As a specific implementation of the above device of the present invention, the four phases include a 0° phase, a 90° phase, a 180° phase and a 270° phase.

[0053] As a specific implementation of the above device of the present invention, the echo data includes one or more echo data, wherein the multiple echo data are echo train data.

[0054] On the other hand, the present invention also provides a computer device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the above-mentioned method for improving the detection frequency of a magnetic resonance multiphase flowmeter when executing the computer program.

[0055] On the other hand, the present invention further provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of the above-mentioned method for increasing the detection frequency of a magnetic resonance multiphase flowmeter.

[0056] The magnetic resonance multiphase flowmeter described in the present invention is a conventional device, which can be obtained commercially.

[0057] The method for improving the detection frequency of the magnetic resonance multiphase flowmeter provided by the present invention can achieve the purpose of improving the signal-to-noise ratio through phase cycle accumulation. The time interval between two sampling points is only the time for measuring a single echo string data, thereby improving the detection frequency of the magnetic resonance multiphase flowmeter. Specifically, the method provided by the present invention can increase the measurement frequency of the magnetic resonance multiphase flowmeter by at least 4 times, thereby enabling the magnetic resonance multiphase flowmeter to be more effectively applied to industrial fields involving the metering of flowing fluids, such as the metering field of oil and gas wells in gas-containing conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0059] Figure 1 It is a schematic diagram of improving the signal-to-noise ratio through phase cycling in the present invention.

[0060] Figure 2 It is a schematic diagram of the change in production of the up and down strokes of the pumping well in the prior art.

[0061] Figure 3 It is a schematic diagram of the metering frequency of the oil pumping well in the prior art.

[0062] Figure 4 A specific flow chart of a method for improving the detection frequency of a magnetic resonance multiphase flowmeter provided in an embodiment of the present invention.

[0063] Figure 5 Schematic diagram of a magnetic resonance phase cycle signal accumulation method in an embodiment of the present invention.

[0064] Figure 6 It is a schematic diagram of the structure of a device for improving the detection frequency of a magnetic resonance multiphase flowmeter provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0065] In order to have a clearer understanding of the technical features, purposes and beneficial effects of the present invention, the technical scheme of the present invention is now described in detail in conjunction with the following specific embodiments, but it should not be understood as limiting the applicable scope of the present invention.

[0066] As mentioned above, although phase cycle accumulation can effectively improve the signal-to-noise ratio, this process increases the time of a single measurement. For example, the measurement time of a set of phase cycles is 4 times that of a single non-accumulated measurement. In addition, the magnetic resonance multiphase flowmeter needs to complete magnetic resonance detection under the condition of continuous fluid flow, that is, the single measurement time directly determines the measurement frequency (flow resolution) of the equipment. Too low a measurement frequency will lose some sudden changes in signals (such as sudden changes in flow). This sudden change in flow rate is particularly obvious in gas-containing multiphase flow, where the fluid flow pattern is very complex and the instantaneous change in flow rate is obvious. In addition, taking the single-well metering of a pumping well as an example, the theoretical pump out flow rate in the up and down strokes of the pump is Figure 2 Assume that the pumping unit has a stroke rate of 6 times per minute, that is, it completes an upstroke and a downstroke every 10 seconds, and each of the upstroke and downstroke contains two broken line segments of flow changes. In order to accurately capture the flow change, refer to the sampling law (collect more than 2 sampling points for each broken line segment, such as Figure 3 Each circle in the figure represents a sampling point), and the measurement frequency should not be less than 48 times / minute, that is, the single measurement time should not be greater than 1.25 seconds. However, even the magnetic resonance flow velocity measurement method (truncated CPMG pulse sequence) often takes more than 1 second for a single measurement, so phase cycle measurement is obviously not possible, resulting in a low signal-to-noise ratio and large errors.

[0067] In view of the above problems, this embodiment provides a method for improving the detection frequency of a magnetic resonance multiphase flowmeter, and its specific flow chart and a schematic diagram of a magnetic resonance phase cycle signal accumulation method are shown as follows: Figure 4 As shown, from Figure 4 As can be seen from the figure, the method comprises:

[0068] S101: Acquire echo data of phases included in a first set of complete phase cycles, and accumulate the echo data as data of a first measurement point;

[0069] S102: Acquire echo data of a first phase in a second group of phase cycles according to the order of the phases in the complete phase cycle, and accumulate the echo data of the first phase with the echo data of other phases in the first group of complete phase cycles as data of a second measurement point;

[0070] S103: Acquire the echo data of the second phase in the third phase cycle, and accumulate the echo data of the first phase in the second phase cycle, the echo data of the second phase, and the echo data of other phases in the first complete phase cycle as the data of the third measurement point;

[0071] S104: Continue to perform several groups of phase cycle measurements in this way until the sampling measurement of the target measurement point is completed.

[0072] In one embodiment, the complete phase cycle includes two or four phases.

[0073] In one embodiment, when the complete phase cycle includes two phases, the method comprises the following steps:

[0074] Acquire echo data of two phases in a first set of complete phase cycles, and accumulate the echo data as data of a first measurement point;

[0075] Acquire the echo data of the first phase in the second group of phase cycles, and add the echo data of the first phase and the echo data of the second phase in the first group of complete phase cycles as the data of the second measurement point;

[0076] Acquire the echo data of the second phase in the third group of phase cycles, and add the echo data of the first phase in the second group of phase cycles and the echo data of the second phase as the data of the third measurement point;

[0077] Continue to perform several groups of phase cycle measurements in this way until the sampling measurement of the target measurement point is completed.

[0078] In one embodiment, the two phases include a 0° phase and a 180° phase, or a 90° phase and a 270° phase.

[0079] In one embodiment, when the complete phase cycle includes four phases, the method includes the following steps:

[0080] Acquire echo data of four phases in a first set of complete phase cycles, and accumulate the echo data as data of a first measurement point;

[0081] Acquire the echo data of the first phase in the second group of phase cycles, and accumulate the echo data of the first phase with the echo data of the other three phases in the first group of complete phase cycles as the data of the second measurement point;

[0082] Acquire the echo data of the second phase in the third group of phase cycles, and accumulate the echo data of the first phase in the second group of phase cycles, the echo data of the second phase, and the echo data of the third and fourth phases in the first group of complete phase cycles as the data of the third measurement point;

[0083] Acquire the echo data of the third phase in the fourth phase cycle, and accumulate the echo data of the first phase in the second phase cycle, the echo data of the second phase in the third phase cycle, the echo data of the third phase, and the echo data of the fourth phase in the first complete phase cycle as the data of the fourth measurement point;

[0084] Acquire the echo data of the fourth phase in the fifth group of phase cycles, and add the echo data of the first phase in the second group of phase cycles, the echo data of the second phase in the third group of phase cycles, the echo data of the third phase in the fourth group of phase cycles, and the echo data of the fourth phase as the data of the fifth measurement point;

[0085] Continue to perform several groups of phase cycle measurements in this way until the sampling measurement of the target measurement point is completed.

[0086] In one embodiment, the four phases include a 0° phase, a 90° phase, a 180° phase, and a 270° phase.

[0087] In one embodiment, the echo data includes one or more echo data.

[0088] The following will describe in detail the method for improving the detection frequency of a magnetic resonance multiphase flowmeter provided by an embodiment of the present invention using two phases and four phases. When the complete phase cycle includes two phases (taking X+ and X- as an example), the method specifically includes:

[0089] Acquire echo string data of two phases X+ and X- in the first complete phase cycle, and accumulate the echo string data as data of the first measurement point;

[0090] Acquire the echo string data of the X+ phase in the second phase cycle, and accumulate the echo string data of the X+ phase with the echo string data of the X- phase in the first complete phase cycle as the data of the second measurement point;

[0091] Acquire the echo string data of the X-phase in the third phase cycle, and accumulate the echo string data of the X+ phase in the second phase cycle and the echo string data of the X-phase as the data of the third measurement point;

[0092] Continue to perform several groups of phase cycle measurements in this way until the sampling measurement of the target measurement point is completed.

[0093] When the complete phase cycle includes four phases (taking X+, Y-, X-, Y+ as an example), Figure 5 As shown, the method specifically includes:

[0094] Measuring echo string data of four phases X+, Y-, X-, and Y+ in the first complete phase cycle, and accumulating the echo string data as data of the first measurement point;

[0095] Entering the second phase cycle, after measuring the echo string data of the X+ phase of the second phase cycle, the echo string data of the X+ phase of the second phase cycle and the echo string data of the Y-, X-, and Y+ phases of the first complete phase cycle are accumulated as the data of the second measurement point;

[0096] Entering the third phase cycle, after measuring the Y-phase echo string data of the third phase cycle, the X+ phase echo string data of the second phase cycle, the Y-phase echo string data of the third phase cycle and the X- and Y+ phase echo string data of the first complete phase cycle are accumulated as the data of the third measurement point;

[0097] Entering the fourth phase cycle, after measuring the echo string data of the X-phase of the fourth phase cycle, the echo string data of the X+phase of the second phase cycle, the echo string data of the Y-phase of the third phase cycle, the echo string data of the X-phase of the fourth phase cycle and the echo string data of the Y+phase of the first complete phase cycle are accumulated as the data of the fourth measurement point;

[0098] Entering the fifth phase cycle, after measuring the Y+ phase echo string data of the fifth phase cycle, the X+ phase echo string data of the second phase cycle, the Y- phase echo string data of the third phase cycle, the X- phase echo string data of the fourth phase cycle, and the Y+ phase echo string data of the fifth phase cycle are accumulated as the data of the fifth measurement point;

[0099] Continue to perform several groups of phase cycle measurements in this way until the sampling measurement of the target measurement point is completed.

[0100] Based on the same inventive concept, an embodiment of the present invention also provides a device for improving the detection frequency of a magnetic resonance multiphase flowmeter. Since the principle of solving the problem by the device is similar to the method for improving the detection frequency of a magnetic resonance multiphase flowmeter, the implementation of the device can refer to the implementation of the method, and the repeated parts will not be repeated. As used below, the term "unit" or "module" refers to a combination of software and / or hardware that can implement a predetermined function. The device described in the following embodiments is preferably implemented in hardware, but the implementation of software or a combination of software and hardware is also possible and conceived.

[0101] Figure 6 The schematic diagram of the structure of the device for improving the detection frequency of the magnetic resonance multiphase flowmeter provided by the embodiment of the present invention is as follows: Figure 6 As can be seen, the device comprises:

[0102] A first data acquisition and processing unit 101 is used to acquire echo data of phases included in a first set of complete phase cycles, and accumulate the echo data as data of a first measurement point;

[0103] A second data acquisition and processing unit 102 is used to acquire the echo data of the first phase in the second group of phase cycles according to the order of the phases in the complete phase cycle, and accumulate the echo data of the first phase with the echo data of other phases in the first group of complete phase cycles as the data of the second measurement point;

[0104] The third data acquisition and processing unit 103 is used to acquire the echo data of the second phase in the third group of phase cycles, and accumulate the echo data of the first phase in the second group of phase cycles, the echo data of the second phase and the echo data of other phases in the first group of complete phase cycles as the data of the third measurement point;

[0105] The fourth data acquisition and processing unit 104 is used to continue to perform several sets of phase cycle measurements in this manner until the sampling measurement of the target measurement point is completed.

[0106] In one embodiment, the complete phase cycle includes two or four phases.

[0107] In one embodiment, when the complete phase cycle includes two phases, the device comprises:

[0108] An echo data acquisition and processing unit for two phases in a first set of complete phase cycles, used to acquire echo data for two phases in the first set of complete phase cycles, and accumulate the echo data as data for a first measurement point;

[0109] an echo data acquisition and processing unit for the first phase in the second phase cycle, used for acquiring the echo data of the first phase in the second phase cycle, and accumulating the echo data of the first phase with the echo data of the second phase in the first complete phase cycle as data of the second measurement point;

[0110] an echo data acquisition and processing unit for the second phase in the third phase cycle, used to acquire the echo data of the second phase in the third phase cycle, and accumulate the echo data of the first phase in the second phase cycle with the echo data of the second phase as data of the third measurement point;

[0111] The first cycle process echo data acquisition and processing unit is used to continue to perform several groups of phase cycle measurements in this way until the sampling measurement of the target measurement point is completed.

[0112] In one embodiment, the two phases include a 0° phase and a 180° phase, or a 90° phase and a 270° phase.

[0113] In one embodiment, when the complete phase cycle includes four phases, the device comprises:

[0114] An echo data acquisition and processing unit for four phases in a first set of complete phase cycles, used to acquire echo data for four phases in the first set of complete phase cycles, and accumulate the echo data as data for a first measurement point;

[0115] an echo data acquisition and processing unit for the first phase in the second phase cycle, used for acquiring the echo data of the first phase in the second phase cycle, and accumulating the echo data of the first phase with the echo data of the other three phases in the first complete phase cycle as the data of the second measurement point;

[0116] an echo data acquisition and processing unit for the second phase in the third phase cycle, used to acquire the echo data for the second phase in the third phase cycle, and accumulate the echo data for the first phase in the second phase cycle, the echo data for the second phase, and the echo data for the third and fourth phases in the first complete phase cycle as data for the third measurement point;

[0117] an echo data acquisition and processing unit for the third phase in the fourth phase cycle, used to acquire the echo data of the third phase in the fourth phase cycle, and accumulate the echo data of the first phase in the second phase cycle, the echo data of the second phase in the third phase cycle, the echo data of the third phase and the echo data of the fourth phase in the first complete phase cycle as the data of the fourth measurement point;

[0118] an echo data acquisition and processing unit for the fourth phase in the fifth phase cycle, used to acquire the echo data of the fourth phase in the fifth phase cycle, and accumulate the echo data of the first phase in the second phase cycle, the echo data of the second phase in the third phase cycle, the echo data of the third phase in the fourth phase cycle and the echo data of the fourth phase as the data of the fifth measurement point;

[0119] The second cycle process echo data acquisition and processing unit is used to continue to perform several groups of phase cycle measurements in this way until the sampling measurement of the target measurement point is completed.

[0120] In one embodiment, the four phases include a 0° phase, a 90° phase, a 180° phase, and a 270° phase.

[0121] In one embodiment, the echo data includes one or more echo data.

[0122] An embodiment of the present invention also provides a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the above-mentioned method for improving the detection frequency of a magnetic resonance multiphase flowmeter when executing the computer program.

[0123] An embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the steps of the method for improving the detection frequency of a magnetic resonance multiphase flowmeter described above are implemented.

[0124] In summary, the method and device for improving the detection frequency of the magnetic resonance multiphase flowmeter provided by the embodiment of the present invention can achieve the purpose of improving the signal-to-noise ratio through phase cycle accumulation, and the time interval between two sampling points is only the time for measuring a single echo string data, thereby improving the detection frequency of the magnetic resonance multiphase flowmeter. Specifically, the method and device provided by the present invention can increase the measurement frequency of the magnetic resonance multiphase flowmeter by at least 4 times, thereby enabling the magnetic resonance multiphase flowmeter to be more effectively applied to industrial fields involving the metering of flowing fluids, such as the metering field of oil and gas wells in gas-containing conditions.

[0125] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0126] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0127] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0128] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0129] The above is only a specific embodiment of the present invention, and cannot be used to limit the scope of the invention. Therefore, the replacement of equivalent components, or equivalent changes and modifications made according to the protection scope of the patent of the present invention, should still fall within the scope of this patent. In addition, the technical features of the present invention can be freely combined with each other, with each other and with each other, and with each other.

Claims

1. A method for increasing the detection frequency of a magnetic resonance multiphase flowmeter, characterized in that: The method for increasing the detection frequency of the magnetic resonance multiphase flowmeter comprises: Acquire echo data of the phases included in the first set of complete phase cycles, and accumulate the echo data as data of the first measurement point; Entering the second phase cycle, acquiring the echo data of the first phase in the complete phase cycle according to the order of the phases in the complete phase cycle, and accumulating the echo data of the first phase with the echo data of other phases except the first phase in the first complete phase cycle as the data of the second measurement point; Entering the third phase cycle, acquiring the echo data of the second phase in the complete phase cycle according to the order of the phases in the complete phase cycle, accumulating the echo data of the first phase obtained after entering the second phase cycle, the echo data of the second phase obtained after entering the third phase cycle, and the echo data of the other phases except the first phase and the second phase in the first complete phase cycle as the data of the third measurement point; Continue to perform several groups of phase cycle measurements in this way until the sampling measurement of the target measurement point is completed.

2. The method according to claim 1, characterized in that The complete phase cycle includes two or four phases.

3. The method according to claim 1 or 2, characterized in that: When the complete phase cycle includes two phases, the method comprises the following steps: Acquire echo data of two phases in a first set of complete phase cycles, and accumulate the echo data as data of a first measurement point; Entering the second phase cycle, acquiring the echo data of the first phase in the complete phase cycle according to the order of the phases in the complete phase cycle, and accumulating the echo data of the first phase with the echo data of the second phase in the first complete phase cycle as the data of the second measurement point; Entering the third phase cycle, acquiring the echo data of the second phase in the complete phase cycle according to the order of the phases in the complete phase cycle, and accumulating the echo data of the first phase obtained after entering the second phase cycle and the echo data of the second phase obtained after entering the third phase cycle as the data of the third measurement point; Continue to perform several groups of phase cycle measurements in this way until the sampling measurement of the target measurement point is completed.

4. The method according to claim 3, characterized in that The two phases include a 0° phase and a 180° phase, or a 90° phase and a 270° phase.

5. The method according to claim 1 or 2, characterized in that: When the complete phase cycle includes four phases, the method includes the following steps: Acquire echo data of four phases in a first set of complete phase cycles, and accumulate the echo data as data of a first measurement point; Entering the second phase cycle, acquiring the echo data of the first phase in the complete phase cycle according to the order of the phases in the complete phase cycle, and accumulating the echo data of the first phase with the echo data of the other three phases except the first phase in the first complete phase cycle as the data of the second measurement point; Entering the third phase cycle, acquiring the echo data of the second phase in the complete phase cycle according to the order of the phases in the complete phase cycle, accumulating the echo data of the first phase obtained after entering the second phase cycle, the echo data of the second phase obtained after entering the third phase cycle, and the echo data of the third and fourth phases in the first complete phase cycle as the data of the third measurement point; Entering the fourth phase cycle, acquiring the echo data of the third phase in the complete phase cycle according to the order of the phases in the complete phase cycle, accumulating the echo data of the first phase obtained after entering the second phase cycle, the echo data of the second phase obtained after entering the third phase cycle, the echo data of the third phase obtained after entering the fourth phase cycle, and the echo data of the fourth phase in the first complete phase cycle as the data of the fourth measurement point; Entering the fifth phase cycle, acquiring the echo data of the fourth phase in the complete phase cycle according to the order of the phases in the complete phase cycle, accumulating the echo data of the first phase obtained after entering the second phase cycle, the echo data of the second phase obtained after entering the third phase cycle, the echo data of the third phase obtained after entering the fourth phase cycle, and the echo data of the fourth phase obtained after entering the fifth phase cycle as the data of the fifth measurement point; Continue to perform several groups of phase cycle measurements in this way until the sampling measurement of the target measurement point is completed.

6. The method according to claim 5, characterized in that The four phases include a 0° phase, a 90° phase, a 180° phase, and a 270° phase.

7. The method according to claim 1, characterized in that The echo data includes one or more echo data.

8. A device for increasing the detection frequency of a magnetic resonance multiphase flowmeter, characterized in that: The device for increasing the detection frequency of the magnetic resonance multiphase flowmeter comprises: A first data acquisition and processing unit, used for acquiring echo data of phases included in a first set of complete phase cycles, and accumulating the echo data as data of a first measurement point; A second data acquisition and processing unit is used to acquire the echo data of the first phase in the complete phase cycle according to the order of the phases in the complete phase cycle after entering the second phase cycle, and accumulate the echo data of the first phase with the echo data of other phases except the first phase in the first complete phase cycle as the data of the second measurement point; a third data acquisition and processing unit, configured to acquire the echo data of the second phase in the complete phase cycle in accordance with the order of the phases in the complete phase cycle after entering the third phase cycle, and accumulate the echo data of the first phase obtained after entering the second phase cycle, the echo data of the second phase obtained after entering the third phase cycle, and the echo data of the other phases except the first phase and the second phase in the first complete phase cycle as the data of the third measurement point; The fourth data acquisition and processing unit is used to continue to perform several sets of phase cycle measurements in this manner until the sampling measurement of the target measurement point is completed.

9. The device according to claim 8, characterized in that The complete phase cycle includes two or four phases.

10. The device according to claim 8 or 9, characterized in that When the complete phase cycle includes two phases, the device comprises: A two-phase first measurement point data acquisition and processing unit, used to acquire echo data of two phases in a first set of complete phase cycles, and accumulate the echo data as data of the first measurement point; The two-phase second measurement point data acquisition and processing unit is used to acquire the echo data of the first phase in the complete phase cycle according to the order of the phases in the complete phase cycle after entering the second phase cycle, and accumulate the echo data of the first phase with the echo data of the second phase in the first complete phase cycle as the data of the second measurement point; A two-phase third measurement point data acquisition and processing unit is used to acquire the echo data of the second phase in the complete phase cycle according to the order of the phases in the complete phase cycle after entering the third phase cycle, and accumulate the echo data of the first phase obtained after entering the second phase cycle and the echo data of the second phase obtained after entering the third phase cycle as the data of the third measurement point; The first cycle process echo data acquisition and processing unit is used to continue to perform several groups of phase cycle measurements in this way until the sampling measurement of the target measurement point is completed.

11. The device according to claim 10, characterized in that The two phases include a 0° phase and a 180° phase, or a 90° phase and a 270° phase.

12. The device according to claim 8 or 9, characterized in that When the complete phase cycle includes four phases, the device comprises: A four-phase first measurement point data acquisition and processing unit, used to acquire echo data of four phases in a first set of complete phase cycles, and accumulate the echo data as data of the first measurement point; a four-phase second measurement point data acquisition and processing unit, for acquiring echo data of the first phase in the complete phase cycle according to the order of the phases in the complete phase cycle after entering the second phase cycle, and accumulating the echo data of the first phase with the echo data of the other three phases except the first phase in the first complete phase cycle as the data of the second measurement point; The four-phase third measurement point data acquisition and processing unit is used to acquire the echo data of the second phase in the complete phase cycle according to the order of the phases in the complete phase cycle after entering the third phase cycle, and accumulate the echo data of the first phase obtained after entering the second phase cycle, the echo data of the second phase obtained after entering the third phase cycle, and the echo data of the third and fourth phases in the first complete phase cycle as the data of the third measurement point; a four-phase fourth measurement point data acquisition and processing unit, used to, after entering the fourth group of phase cycles, acquire the echo data of the third phase in the complete phase cycle in the order of the phases in the complete phase cycle, and accumulate the echo data of the first phase obtained after entering the second group of phase cycles, the echo data of the second phase obtained after entering the third group of phase cycles, the echo data of the third phase obtained after entering the fourth group of phase cycles, and the echo data of the fourth phase in the first group of complete phase cycles as the data of the fourth measurement point; a four-phase fifth measurement point data acquisition and processing unit, used to, after entering the fifth group of phase cycles, acquire the echo data of the fourth phase in the complete phase cycle in the order of the phases in the complete phase cycle, and accumulate the echo data of the first phase obtained after entering the second group of phase cycles, the echo data of the second phase obtained after entering the third group of phase cycles, the echo data of the third phase obtained after entering the fourth group of phase cycles, and the echo data of the fourth phase obtained after entering the fifth group of phase cycles as the data of the fifth measurement point; The second cycle process echo data acquisition and processing unit is used to continue to perform several groups of phase cycle measurements in this way until the sampling measurement of the target measurement point is completed.

13. The device according to claim 12, characterized in that The four phases include a 0° phase, a 90° phase, a 180° phase, and a 270° phase.

14. The device according to claim 8, characterized in that The echo data includes one or more echo data.

15. A computer device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the method for improving the detection frequency of a magnetic resonance multiphase flowmeter as described in any one of claims 1 to 7 are implemented.

16. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method for improving the detection frequency of a magnetic resonance multiphase flowmeter as described in any one of claims 1 to 7 are implemented.

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