CN202832505U - Measuring system of dynamic liquid level of oil well - Google Patents

Measuring system of dynamic liquid level of oil well Download PDF

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Publication number
CN202832505U
CN202832505U CN 201220471401 CN201220471401U CN202832505U CN 202832505 U CN202832505 U CN 202832505U CN 201220471401 CN201220471401 CN 201220471401 CN 201220471401 U CN201220471401 U CN 201220471401U CN 202832505 U CN202832505 U CN 202832505U
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well
fluid level
load
displacement
measuring system
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CN 201220471401
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Inventor
辛宏
朱天寿
徐永高
慕立俊
曾亚勤
杨瑞
甘庆明
黄伟
杨海涛
李明江
张磊
邱亮
李珍
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China Petroleum and Natural Gas Co Ltd
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China Petroleum and Natural Gas Co Ltd
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Abstract

The utility model provides a measuring system of a dynamic liquid level of an oil well. The measuring system of the dynamic liquid level of the oil well measures the load and the displacement of the sucker rod of a rod pumped well through a loading sensor arranged on a beam hanger on a well mouth and a displacement sensor arranged below the walking beam of a pumping unit, and a load and time curve and a displacement and time curve are collected and acquired. A polish rod indicator diagram is acquired by utilizing the load and time curve and the displacement and time curve. A pump indicator diagram is acquired according to the acquired polish rod indicator diagram. Through the technological means that a dynamic liquid level of an oil well is acquired by utilizing thee pump indicator diagram, the measuring system of the dynamic liquid level of the oil well has the advantages of providing a scheme of achieving the effective real-time and continuous monitoring of the dynamic liquid level with low cost, changing the working manner that people carry out testing of the dynamic liquid level of the oil well on site, solving the problems that an on-site operation period is long, labor intensity is large and the representativeness of transient test values is not strong, and achieving the aims of acquiring the dynamic liquid level in real time with low cost, coordinating supply and discharge relation, and improving the producing efficiency of the oil well.

Description

A kind of measuring system of well fluid level
Technical field
The utility model relates to the oil extraction in oil field technical field, relates in particular to a kind of measuring system of well fluid level.
Background technology
Feed flow situation and down-hole that the well fluid level data have directly been reacted the stratum concern for row, are the important evidence of carrying out oil production technology Adaptability Evaluation and optimization.The device category of at present producing fluid level test is more, and wherein modal have:
Echometer, by sound bullet type, nitrogen type wellhead connector and comprehensive tester form, and this equipment mainly utilizes the echo principle to survey liquid level, needs artificial upper well to test by a mouthful well, and workload is large, poor in timeliness, and have potential safety hazard.
Well head tester, identical with the echometer operating principle, advantage is directly to install well head, utilizes the collection casing gas to test as the sounding energy source, and utilizes wireless communication apparatus that the result is uploaded to network.Can realize automatic, real-time, continuous monitoring to producing fluid level, shortcoming is that the well site need to increase equipment, and cost is high, is unfavorable for large-scale promotion application.
Optical fiber downhole testing producing fluid level, the method is the most direct, and is under test at present, apparatus expensive.
In realizing the utility model process, utility model people finds that there are the following problems at least in the prior art: lack at present a kind of the realization at lower cost and real-time, the continuous monitoring scheme of effective producing fluid level.
The utility model content
The utility model embodiment provides a kind of measuring system of well fluid level, can provide a kind of and realize at lower cost and real-time, the continuous monitoring scheme of effective producing fluid level.
In order to solve the problems of the technologies described above, the utility model embodiment provides a kind of measuring system of well fluid level, and the measuring system of described well fluid level comprises:
Data acquisition unit is used for by being installed in load transducer on the well head polished rod eye and the displacement transducer of walking beam on pumping units below pumping rod of well pumping unit load and displacement being measured, and gathers and obtain load and time graph, and displacement and time graph;
Data processing equipment links to each other with described data acquisition unit, is used for utilizing described load and time graph, and displacement and time graph, obtain the polished rod indicator card; Obtain pump merit figure according to the described polished rod indicator card that obtains; Utilize described pump merit figure to obtain the degree of depth of well fluid level.
Optionally, in the utility model one embodiment, described data acquisition unit, by being installed in the displacement transducer of load transducer on the well head polished rod eye and walking beam on pumping units below, pumping rod of well pumping unit load and displacement are measured, gather load and time graph, behind displacement and time graph, image data is reached the well head collector by cable, be uploaded to well site host remote terminal control system RTU by the well head collector again, again by the well group antenna, image data is reached main website center reception antenna with the form of ripple, so that data processing equipment receives.
Optionally, in the utility model one embodiment, the measuring system of described well fluid level also comprises: distributing device as a result, link to each other with described data processing equipment, after described data processing equipment utilizes described pump merit figure to obtain the degree of depth of well fluid level, be used for designing and set up system network architecture, in order to issue the degree of depth of described well fluid level as unit take the oil recovery factory take client/server configuration as master, browser/server structure as auxiliary.
Optionally, in the utility model one embodiment, described data processing equipment, concrete being used for utilizes described pump merit figure to set up producing fluid level computational mathematics model, to obtain the degree of depth of well fluid level.
Further, optionally, in the utility model one embodiment, described data processing equipment, further concrete being used for pump intake pressure as node, set up standing valve in the stroke, travelling valve is opened the balance model that acts on the plunger, fill in capable force analysis with coupled columns and obtain the first pump intake pressure, then described the first pump intake pressure and the second pump intake pressure that obtains that distributed by the oil jacket annular pressure are compared, to ask for the degree of depth of well fluid level.
Technique scheme has following beneficial effect: because adopt by being installed in load transducer on the well head polished rod eye and the displacement transducer of walking beam on pumping units below, pumping rod of well pumping unit load and displacement are measured, collection is also obtained load and time graph, and displacement and time graph; Utilize described load and time graph, and displacement and time graph, the polished rod indicator card obtained; Obtain pump merit figure according to the described polished rod indicator card that obtains; Utilize described pump merit figure to obtain the technological means of the degree of depth of well fluid level, so reached following technique effect: provide a kind of and realized at lower cost and real-time, the continuous monitoring scheme of effective producing fluid level, changed manually to on-the-spot working method of carrying out the test of machine-pumped oil well producing fluid level, it is long to have solved the execute-in-place cycle, labour intensity is large, the not strong problem of instantaneous test value representativeness reaches at lower cost Real-time Obtaining producing fluid level, coordination concern, improve oil well production efficient for row target.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the measuring method flow chart of a kind of well fluid level of the utility model embodiment;
Fig. 2 forms structural representation for the utility model embodiment provides a kind of measuring system of well fluid level;
Fig. 3 is that the measuring system of the another kind of well fluid level of the utility model embodiment forms structural representation;
Fig. 4 is the stressed schematic diagram of oil well pump in the utility model application example pit shaft;
Fig. 5 is application example load of the present invention-time light curve schematic diagram;
Fig. 6 is application example displacement-time curve schematic diagram of the present invention;
Fig. 7 is application example pump merit figure schematic diagram of the present invention;
Fig. 8 is that application example whole day of the present invention amounts to 144 pump merit figure schematic diagrames;
Fig. 9 is application example well fluid level whole day calculated curve schematic diagram of the present invention;
Figure 10 calculates producing fluid level statistics block diagram under the various operating modes of application example oil well of the present invention.
The specific embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, be the measuring method flow chart of a kind of well fluid level of the utility model embodiment, the measuring method of described well fluid level comprises:
101, by being installed in the displacement transducer of load transducer on the well head polished rod eye and walking beam on pumping units below, pumping rod of well pumping unit load and displacement are measured, gathered and obtain load and time graph, and displacement and time graph;
102, utilize described load and time graph, and displacement and time graph, the polished rod indicator card obtained;
103, obtain pump merit figure according to the described polished rod indicator card that obtains;
104, utilize described pump merit figure to obtain the degree of depth of well fluid level.
Optionally, described by being installed in the displacement transducer of load transducer on the well head polished rod eye and walking beam on pumping units below, pumping rod of well pumping unit load and displacement are measured, gather and obtain load and time graph, with displacement and time graph, comprise: by being installed in the displacement transducer of load transducer on the well head polished rod eye and walking beam on pumping units below, pumping rod of well pumping unit load and displacement are measured, gather load and time graph, behind displacement and time graph, image data is reached the well head collector by cable, be uploaded to well site host remote terminal control system RTU by the well head collector again, again by the well group antenna, image data is reached main website center reception antenna with the form of ripple.
Optionally, described utilize described pump merit figure to obtain the degree of depth of well fluid level after, the measuring method of described well fluid level also comprises: take client/server configuration as master, browser/server structure as auxiliary, design is also set up system network architecture, in order to issue the degree of depth of described well fluid level as unit take the oil recovery factory.
Optionally, describedly utilize described pump merit figure to obtain the degree of depth of well fluid level, comprising: utilize described pump merit figure to set up producing fluid level computational mathematics model, to obtain the degree of depth of well fluid level.
Further, optionally, describedly utilize described pump merit figure to set up producing fluid level computational mathematics model, to obtain the degree of depth of well fluid level, comprise: as node, set up standing valve in the stroke, travelling valve is opened the balance model that acts on the plunger with pump intake pressure, fill in capable force analysis with coupled columns and obtain the first pump intake pressure, then described the first pump intake pressure and the second pump intake pressure that obtains that distributed by the oil jacket annular pressure are compared, to ask for the degree of depth of well fluid level.
As shown in Figure 2, form structural representation for the utility model embodiment provides a kind of measuring system of well fluid level, the measuring system of described well fluid level comprises:
Data acquisition unit 21, be used for by being installed in load transducer on the well head polished rod eye and the displacement transducer of walking beam on pumping units below, pumping rod of well pumping unit load and displacement are measured, gathered and obtain load and time graph, and displacement and time graph;
Data processing equipment 22 links to each other with described data acquisition unit 21, is used for utilizing described load and time graph, and displacement and time graph, obtain the polished rod indicator card; Obtain pump merit figure according to the described polished rod indicator card that obtains; Utilize described pump merit figure to obtain the degree of depth of well fluid level.
Optionally, described data acquisition unit 21, by being installed in the displacement transducer of load transducer on the well head polished rod eye and walking beam on pumping units below, pumping rod of well pumping unit load and displacement are measured, gather load and time graph, behind displacement and time graph, image data is reached the well head collector by cable, be uploaded to well site host remote terminal control system RTU by the well head collector again, again by the well group antenna, image data is reached main website center reception antenna with the form of ripple, so that data processing equipment 22 receives.
Optionally, as shown in Figure 3, measuring system composition structural representation for the another kind of well fluid level of the utility model embodiment, the measuring system of described well fluid level is except comprising: data acquisition unit 21 and the data processing equipment 22, also comprise: distributing device 23 as a result, link to each other with described data processing equipment 22, after described data processing equipment 22 utilizes described pump merit figure to obtain the degree of depth of well fluid level, be used for take client/server configuration as main, browser/server structure is auxiliary, design is also set up system network architecture, in order to issue the degree of depth of described well fluid level as unit take the oil recovery factory.
Optionally, described data processing equipment 22, concrete being used for utilizes described pump merit figure to set up producing fluid level computational mathematics model, to obtain the degree of depth of well fluid level.Further, optionally, described data processing equipment 22, further specifically be used for pump intake pressure as node, set up standing valve in the stroke, travelling valve is opened the balance model that acts on the plunger, fill in capable force analysis with coupled columns and obtain the first pump intake pressure, then described the first pump intake pressure and the second pump intake pressure that obtains that distributed by the oil jacket annular pressure are compared, to ask for the degree of depth of well fluid level.
The utility model embodiment said method or systems technology scheme have following beneficial effect: because adopt by being installed in load transducer on the well head polished rod eye and the displacement transducer of walking beam on pumping units below, pumping rod of well pumping unit load and displacement are measured, collection is also obtained load and time graph, and displacement and time graph; Utilize described load and time graph, and displacement and time graph, the polished rod indicator card obtained; Obtain pump merit figure according to the described polished rod indicator card that obtains; Utilize described pump merit figure to obtain the technological means of the degree of depth of well fluid level, so reached following technique effect: provide a kind of and realized at lower cost and real-time, the continuous monitoring scheme of effective producing fluid level, changed manually to on-the-spot working method of carrying out the test of machine-pumped oil well producing fluid level, it is long to have solved the execute-in-place cycle, labour intensity is large, the not strong problem of instantaneous test value representativeness reaches at lower cost Real-time Obtaining producing fluid level, coordination concern, improve oil well production efficient for row target.
Below lifting application example is elaborated:
The measuring system that the utility model application example pump power graph method calculates well fluid level is comprised of three parts: data acquisition unit, data processing equipment and distributing device as a result:
Data acquisition unit: by being installed in load transducer on the well head polished rod eye, being installed in displacement transducer, well head collector, the well site host RTU(Remote Terminal Unit of walking beam on pumping units below, the remote terminal control system), the composition such as well group antenna.The instantaneous polished rod load of synchronous acquisition rod-pumped well, displacement parameter;
Data processing equipment: the platform that each data acquisition unit is carried out information exchange, analyzing and processing.Operated by rotary motion is at petroleum transferring station or multi-purpose station.Mainly calculating producing fluid level software etc. by center antenna, master controller (data processor, telecommunication module, wireless server etc.), computer, merit figure forms;
Distributing device as a result: receive result of calculation and the oil well basic data uploaded from data processing equipment, be comprised of database server, apps server, Web server, responsible is storage, the info web issue of all well datas of unit take the oil recovery factory.
Specific implementation process is as follows:
1. by being installed in the displacement transducer of load transducer on the well head polished rod eye and walking beam below, pumping rod of well pumping unit load and displacement are measured, gathered load and time, displacement and time graph, see Fig. 5, shown in Figure 6.
2. load and the displacement signal of telecommunication reach the well head collector by cable, and each well data is uploaded to well site host RTU by the well head collector again, again by the well group antenna, image data is reached main website center reception antenna with the form of ripple carry out data receiver.
3. the master controller by data processing equipment is converted to data signal with the signal that receives and reaches computer in the station.For having additionally arranged system network architecture, computer installation merit figure calculates producing fluid level software in the website, finds the solution producing fluid level take client/server configuration as main, browser/server structure in foundation.
4. distributing device is arranged on each oil recovery factory as a result, is comprised of database server, apps server, Web server.Result of calculation and oil well basic data that reception is uploaded from data processing equipment, take the oil recovery factory as the unit to all data store, info web issue.
Pump merit figure calculates the producing fluid level method: at first, utilize described sucker rod load and the Changing Pattern of displacement and time to obtain the polished rod indicator card.Secondly, turn by the polished rod indicator card and to find the solution pump merit figure, model sucker rod, oil pipe FEM (finite element) model and fluid column Difference Calculation model, then iterative goes out deep-well pumping hole place's load and sucker rod load and the graph of a relation of displacement and time, namely obtains pump merit figure.At last, set up producing fluid level computational mathematics model: as node, set up standing valve in the stroke, travelling valve is opened the balance model that acts on the plunger with pump intake pressure.Find the solution pump intake pressure, compare with the pump intake pressure that utilizes the oil jacket annular space to calculate, calculate the degree of depth of producing fluid level.
Calculate in real time the producing fluid level Mathematical Modeling and be take pump merit figure open, pump intake pressure calculates producing fluid level as node during closing point:
The first step:
Coupled columns is filled in capable force analysis, as shown in Figure 4, is the stressed schematic diagram of oil well pump in the utility model application example pit shaft, sets up standing valve in the stroke, travelling valve is opened the equilibrium equation that acts on the plunger:
Standing valve is opened moment pump load: F u=P p(f p-f r)-(p n-Δ p 1) f p+ W p+ f
Travelling valve is opened moment pump load: F d=P p(f p-f r)-(p p+ Δ p 2) f p+ W p-f
Two formulas are subtracted each other, pump intake pressure P n = ( P p + Δ p 2 ) - F u - F d f p + 2 f f p + Δ p 1 - - - ( 1 )
In the formula:
F u---standing valve is opened moment pump load, N; F d---travelling valve is opened moment pump load, N; P p---travelling valve upper pressure, Pa; W p---plunger weight, N; Frictional force between f---plunger and pump barrel, N; f p, f r---plunger, sucker rod sectional area, m 2Δ p 1---travelling valve Pressure Drop, Pa; Δ p 2---standing valve Pressure Drop, Pa.
Second step:
By utilizing the oil jacket annular space to calculate pump intake pressure.
Pump intake pressure is gas column section and two sections pressure sums of gassiness oil column section:
p n = p D + Δ p 0
= p c e 0.06154 r g L g ( 492 + 1.8 T avg ) Z + ρ 0 g ( L p - L f ) - - - ( 2 )
In the formula:
p n---pump intake pressure, Pa; p D---the pressure at producing fluid level place, Pa; Δ p 0---producing fluid level is to the pressure at pump place, Pa; p c---surface casing pressure, Pa; T Avg---gas column average temperature, ° C; T Avg---producing fluid level place temperature, ° C; r g---the natural gas relative density; L g---gas column length, m; Z---the compressibility factor under gas column average pressure and the average temperature; ρ 0---the density of crude oil, kg/m3; L p---pump setting depth, m; L f---producing fluid level, m.
The 3rd step:
Bring (2) formula into (1), arrangement obtains well fluid level:
L f = F u - F d - 2 f + ( Δ p 1 + Δ p 2 + P D - P h ) f p ρ l g f p
5. the difficult point of calculating in the said process comprises that fluid density is determined in the oil pipe, and the determining of pump merit figure travelling valve, standing valve opening point load value:
Difficult point 1: fluid density is determined in the oil pipe:
Polished rod load inverting densimetry: polished rod load comprises fluid density information in the oil pipe, can utilize polished rod load Inversion Calculation fluid density.
Consider the factors such as directional well frictional resistance, wax deposition, the design formulas of, minimum load maximum according to oil pumper:
Figure BDA00002142135500072
Figure BDA00002142135500073
Wherein, P Max---oil pumper peak load, N; P Min---oil pumper minimum load, N; p Bar---sucker rod is gravity in air, N; p Liquid---the gravity of fluid column on ram area, N, s---stroke, m; N---jig frequency, 1/min.
Figure BDA00002142135500074
Difficult point 2: find the solution pump merit figure travelling valve, standing valve opening point load value:
Decomposite load-time curve y=f (t) by pump merit figure (see figure 7), find the solution the variable quantity of the slope of load-time graph, find the slope maximum value, be i.e. pump merit figure travelling valve opening point load value F uWith standing valve opening point load value F d
Figure BDA00002142135500081
t j∈{t 0+0.1,t 0+0.2,......t 0+0.1M}
At last, because server end disposed database server and Web server, adopt browser/server (Browser/Server) structure to build the website, in LAN, check well fluid level, transfer the functions such as ginseng in real time by mandate.
For example, the utility model application example is by well head installed load, displacement transducer, round-the-clock collection polished rod indicator card, data-signal is sent to website by cable and radio transmission apparatus, website has been installed merit figure and has been calculated producing fluid level software, at first the polished rod indicator card with collection in per 10 minutes is converted into pump merit figure, whole day amounts to 144 pump merit figure, calculate the producing fluid level Mathematical Modeling by merit figure, calculate well fluid level, whole day can be drawn a producing fluid level calculated curve, can also obtain a well fluid level by weighted average.As shown in Figure 8, amount to 144 pump merit figure schematic diagrames for the utility model application example whole day; As shown in Figure 9, be the utility model application example well fluid level whole day calculated curve schematic diagram.
300 mouthfuls of oil wells of tentative calculation (data as shown in following table 1).As shown in figure 10, for calculating producing fluid level statistics block diagram under the various operating modes of the utility model application example oil well, wherein 258 mouthfuls of oil well calculation and actual measurement producing fluid level absolute error<75m account for 86% of oil well sum.By oil well condition result of calculation is analyzed, is found that slight feed flow is not enough, under the operating modes such as oil well is working properly, slight wax deposition, calculates relatively accurate, can be in conjunction with the further research under other operating mode, continuous sophisticated model is with the raising accuracy in computation.
Table 1
The utility model application example is because adopt by being installed in load transducer on the well head polished rod eye and the displacement transducer of walking beam on pumping units below, pumping rod of well pumping unit load and displacement are measured, collection is also obtained load and time graph, and displacement and time graph; Utilize described load and time graph, and displacement and time graph, the polished rod indicator card obtained; Obtain pump merit figure according to the described polished rod indicator card that obtains; Utilize described pump merit figure to obtain the technological means of the degree of depth of well fluid level, so reached following technique effect: provide a kind of and realized at lower cost and real-time, the continuous monitoring scheme of effective producing fluid level, changed manually to on-the-spot working method of carrying out the test of machine-pumped oil well producing fluid level, it is long to have solved the execute-in-place cycle, labour intensity is large, the not strong problem of instantaneous test value representativeness reaches at lower cost Real-time Obtaining producing fluid level, coordination concern, improve oil well production efficient for row target.In the situation that does not increase any acquisition instrument equipment, realized utilizing indicator card to calculate in real time producing fluid level, the producing fluid level monitoring is changed into " on-the-spot broadcasting " from " afterwards recorded broadcast ".
Those skilled in the art can also recognize the various illustrative components, blocks (illustrative logical block) that the utility model embodiment lists, the unit, and step can pass through electronic hardware, computer software, or both combinations realize.Be the clear replaceability (interchangeability) of showing hardware and software, above-mentioned various illustrative components (illustrative components), unit and step have been described their function generally.Such function is to realize depending on the designing requirement of specific application and whole system by hardware or software.Those skilled in the art can be for every kind of specific application, and can make ins all sorts of ways realizes described function, but this realization should not be understood to exceed the scope of the utility model embodiment protection.
Various illustrative logical block described in the utility model embodiment, or the unit can pass through general processor, digital signal processor, special IC (ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or the design of above-mentioned any combination realizes or operates described function.General processor can be microprocessor, and alternatively, this general processor also can be any traditional processor, controller, microcontroller or state machine.Processor also can realize by the combination of calculation element, for example digital signal processor and microprocessor, multi-microprocessor, Digital Signal Processor Core of one or more microprocessors associatings, or any other similarly configuration realize.
Method described in the utility model embodiment or the step of algorithm can directly embed hardware, the software module of processor execution or the two combination.Software module can be stored in the storage medium of other arbitrary form in RAM memory, flash memory, ROM memory, eprom memory, eeprom memory, register, hard disk, moveable magnetic disc, CD-ROM or this area.Exemplarily, storage medium can be connected with processor so that processor can be from storage medium reading information, and can deposit write information to storage medium.Alternatively, storage medium can also be integrated in the processor.Processor and storage medium can be arranged among the ASIC, and ASIC can be arranged in the user terminal.Alternatively, processor and storage medium also can be arranged in the different parts in the user terminal.
In one or more exemplary designs, the described above-mentioned functions of the utility model embodiment can realize in hardware, software, firmware or this three's any combination.If realize in software, these functions can be stored on the medium with computer-readable, or are transmitted on the medium of computer-readable with one or more instructions or code form.The computer-readable medium comprises the computer storage medium and is convenient to so that allow computer program transfer to other local telecommunication media from a place.Storage medium can be the useable medium that any general or special computer can access.For example, such computer readable media can include but not limited to RAM, ROM, EEPROM, CD-ROM or other optical disc storage, disk storage or other magnetic storage device, or other anyly can be used for carrying or storage can be read by general or special computer or general or special processor the program code of form with instruction or data structure and other medium.In addition, any connection can suitably be defined as the computer-readable medium, for example, if software is by a coaxial cable, fiber optic cables, twisted-pair feeder, Digital Subscriber Line (DSL) or also being comprised in the defined computer-readable medium with wireless way for transmittings such as infrared, wireless and microwave from a web-site, server or other remote resource.Described video disc (disk) and disk (disc) comprise Zip disk, radium-shine dish, CD, DVD, floppy disk and Blu-ray Disc, and disk is usually with the magnetic duplication data, and video disc carries out the optical reproduction data with laser usually.Above-mentioned combination also can be included in the computer-readable medium.
The above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the above only is the specific embodiment of the present utility model; and be not used in and limit protection domain of the present utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.

Claims (5)

1. the measuring system of a well fluid level is characterized in that, the measuring system of described well fluid level comprises:
Data acquisition unit is used for by being installed in load transducer on the well head polished rod eye and the displacement transducer of walking beam on pumping units below pumping rod of well pumping unit load and displacement being measured, and gathers and obtain load and time graph, and displacement and time graph;
Data processing equipment links to each other with described data acquisition unit, is used for utilizing described load and time graph, and displacement and time graph, obtain the polished rod indicator card; Obtain pump merit figure according to the described polished rod indicator card that obtains; Utilize described pump merit figure to obtain the degree of depth of well fluid level.
2. the measuring system of well fluid level as claimed in claim 1, it is characterized in that, described data acquisition unit, by being installed in the displacement transducer of load transducer on the well head polished rod eye and walking beam on pumping units below, pumping rod of well pumping unit load and displacement are measured, gather load and time graph, behind displacement and time graph, image data is reached the well head collector by cable, be uploaded to well site host remote terminal control system RTU by the well head collector again, again by the well group antenna, image data is reached main website center reception antenna with the form of ripple, so that data processing equipment receives.
3. the measuring system of well fluid level as claimed in claim 1 is characterized in that the measuring system of described well fluid level also comprises:
Distributing device as a result, link to each other with described data processing equipment, after described data processing equipment utilizes described pump merit figure to obtain the degree of depth of well fluid level, be used for take client/server configuration as master, browser/server structure as auxiliary, design is also set up system network architecture, in order to issue the degree of depth of described well fluid level as unit take the oil recovery factory.
4. the measuring system of well fluid level as claimed in claim 1 is characterized in that,
Described data processing equipment, concrete being used for utilizes described pump merit figure to set up producing fluid level computational mathematics model, to obtain the degree of depth of well fluid level.
5. the measuring system of well fluid level as claimed in claim 4 is characterized in that,
Described data processing equipment, further specifically be used for pump intake pressure as node, set up standing valve in the stroke, travelling valve is opened the balance model that acts on the plunger, fill in capable force analysis with coupled columns and obtain the first pump intake pressure, then described the first pump intake pressure and the second pump intake pressure that obtains that distributed by the oil jacket annular pressure are compared, to ask for the degree of depth of well fluid level.
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CN103440114A (en) * 2013-07-17 2013-12-11 中国石油天然气股份有限公司 Web architecture-based three-dimensional wellbore trajectory display system
CN109356569A (en) * 2018-09-30 2019-02-19 西安海联石化科技有限公司 Collecting and distributing type hydrodynamic face monitoring platform
CN110552685A (en) * 2019-08-19 2019-12-10 大庆油田有限责任公司 Method for calculating working fluid level of oil well by utilizing ground indicator diagram in wax precipitation well
CN112196519A (en) * 2020-09-05 2021-01-08 黑龙江省荣泽石油设备有限公司 Method for detecting unsteady continuous working fluid level of oil well
CN114183125A (en) * 2021-12-31 2022-03-15 天津技易科技有限公司 Driving end sensing type pumping well working fluid level testing method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103440114A (en) * 2013-07-17 2013-12-11 中国石油天然气股份有限公司 Web architecture-based three-dimensional wellbore trajectory display system
CN103440114B (en) * 2013-07-17 2016-09-07 中国石油天然气股份有限公司 A kind of three-dimensional wellbore trajectory display system of sing on web framework
CN109356569A (en) * 2018-09-30 2019-02-19 西安海联石化科技有限公司 Collecting and distributing type hydrodynamic face monitoring platform
CN109356569B (en) * 2018-09-30 2023-11-03 西安海联石化科技有限公司 Distributed working fluid level monitoring platform
CN110552685A (en) * 2019-08-19 2019-12-10 大庆油田有限责任公司 Method for calculating working fluid level of oil well by utilizing ground indicator diagram in wax precipitation well
CN110552685B (en) * 2019-08-19 2022-08-19 大庆油田有限责任公司 Method for calculating working fluid level of oil well by utilizing ground indicator diagram in wax precipitation well
CN112196519A (en) * 2020-09-05 2021-01-08 黑龙江省荣泽石油设备有限公司 Method for detecting unsteady continuous working fluid level of oil well
CN112196519B (en) * 2020-09-05 2023-05-09 黑龙江省荣泽石油设备有限公司 Method for detecting unsteady continuous dynamic liquid level of oil well
CN114183125A (en) * 2021-12-31 2022-03-15 天津技易科技有限公司 Driving end sensing type pumping well working fluid level testing method

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