CN102466498A - Test hardware system for full-scale bit test - Google Patents
Test hardware system for full-scale bit test Download PDFInfo
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- CN102466498A CN102466498A CN2010105601694A CN201010560169A CN102466498A CN 102466498 A CN102466498 A CN 102466498A CN 2010105601694 A CN2010105601694 A CN 2010105601694A CN 201010560169 A CN201010560169 A CN 201010560169A CN 102466498 A CN102466498 A CN 102466498A
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Abstract
The invention discloses a test hardware system for a full-scale bit test, which is mainly composed of a pressure sensor, a displacement sensor, a torque sensor, a bit rotation speed sensor, and three tooth wheel rotation speed sensors which are all independently connected with amplifiers. All the amplifiers are connected with the same data acquisition card. The data acquisition card is connected with a computer. According to the test hardware system for the full-scale bit test disclosed by the invention, the control and test of the whole full-scale bit test process can be finished in a manner that the computer is operated by a person; the traditional way of finishing the test and data acquisition by manual operation of test control table buttons and the computer is displaced; the test operation process is simplified; and the automation degree of the test process is increased.
Description
Technical field
The present invention relates to a kind of full head dip test testing hardware system.
Background technology
Oil bit is the main tool of ravelly ground rock, is the important means that improves ROP in the petroleum drilling engineering, reduces drilling cost.High-performance drill bit Products Development all is to be based upon on theoretical and the experimental study basis with research; Head dip test mainly is to carry out broken Different Strata rock test of full drill bit and the broken rock test of drill bit gear ring compound motion; Full head dip test mainly is the ROP and the broken shaft bottom of test drill bit broken different rocks under certain drilling parameter condition; The motion and the broken rock situation of the broken rock test simulation drill teeth of drill bit gear ring compound motion are through the drill bit in the test macro acquisition test process and gear ring rotating speed, drill bit displacement, the pressure of the drill and torque signal.
The test that research is carried out to drill bit at present mainly is the broken rock test of full gauge bit test and drill bit gear ring compound motion, and full head dip test mainly is to detect the Fracture law that new drill creeps into the Different Strata rock; The broken rock test of drill bit gear ring compound motion mainly is the Fracture law of research different drill structure parameters, flank of tooth structure and drilling parameter and formation rock.
The test macro of the broken rock test of existing full head dip test and drill bit gear ring compound motion mainly is by drill bit, gear wheel and gear ring rotational speed pulse signal in sensor, tachometry appearance and the data collecting card acquisition test process; By drill bit displacement, the pressure of the drill and the simulation torque signal in sensor, dynamic strain indicator and the data collecting card acquisition test process.
But along with further in-depth of drill bit research; A lot of problems that have existing head dip test test macro can not satisfy the needs of present stage drill bit research and new product development; Such as: the motion and the stressing conditions of research drill bit and 5 teeth; The analog quantity channel of existing two 8 channel data capture cards is not enough, can not satisfy the expanded function of test needs comprehensively; Because the influence of hydraulic system, motor and environment etc., the signal of dynamic strain indicator collection contains a large amount of noises, and the test figure accuracy is not high; Hardware device such as dynamic strain indicator and data collecting card costs an arm and a leg, and the test system hardware cost is high.Therefore press for and set up the head dip test test macro of a cover based on modern measuring technology; Can gathering the motion and the stressing conditions of drill bit and each tooth fast, accurately, in real time, thereby important research technique is provided for the new product development of drill bit and scientific design.
Motion state when oil bit is worked in the shaft bottom and stress are quite complicated.Drill bit moves in the shaft bottom; Except drill bit around self axis rotatablely move as CW with gear wheel around the bit leg axis is done counterclockwise to rotatablely move; Also has the slip of axial longitudinal vibration and gear wheel, the compound motion that these several kinds motions take place simultaneously, combine when being drilling well.Oil bit is fractured rock under impact, crushing and the slip shear effect that above-mentioned compound motion produced.
Can produce extensional vibration when oil bit creeps into, in each vibration, compression lower drilling string when drill bit is up, when drill bit is descending then drill string recover former length, its potential energy is converted into the dynamic loading of drill bit.During drill bit work; The power that tooth affacts on the rock has static load (being added in the pressure of the drill on the drill bit) and dynamic loading (drill bit and lower drilling string are quickened to descend and the dynamic load of generation); When that is to say tooth impact grinding rock, the reacting force that drill bit receives rock also equals static load and dynamic loading sum.
Drill bit is when underground work, except receiving vertical static load and dynamic loading, because drill string rotating also will receive torsional interaction.When the pressure of the drill is bigger, tooth wedging rock is darker, and especially tooth slides in the shaft bottom when big, and the moment of torsion that drill bit bears is bigger.When oil bit is worked in the shaft bottom; Because drill bit produces longitudinal vibration in the shaft bottom; Make drill string constantly compression and extension; Lower drilling string passes to tooth to this periodic elastic deformation energy, produces impact, the granulitization of tooth to rock, and this crumbling method is one of main mode of oil bit fractured rock.
In oil bit when work,, because the project organization of drill bit and the influence of stratum frictional resistance produce slip, rotating speed is faster, slippage is big more, and is big more to the shearing-crushing of rock, thereby passes through the slip shear bottom rock of tooth, the raising crushing efficiency.
Can find out in the research process of drill bit the brief analysis of oil bit according to above-mentioned, must analyze the pressure of the drill, torsional interaction and drill bit that the broken rock motion of drill bit born and the rotating speed of gear wheel effectively in shaft bottom motion, stressed and fractured rock situation.
Along with the petroleum drilling degree of depth increases and formation rock complicated; Research work according to Different Strata rock characteristics exploitation high-performance drill bit is more urgent, at present the control of existing head dip test and the demand that test macro can not satisfy the research and development of present stage drill bit.
The control of at present existing head dip test and test macro can not satisfy the demand of drill bit research and new product development, mainly have following problem:
(1) test control and test process are loaded down with trivial details, realize the control of whole broken rock process of the test by manual work through operating console, and automaticity is low;
(2) existing two test systems all are the data collecting cards that adopts two 8 passages (totally 16 passages), and the expanded function limitation is big, far can not satisfy the design experiment demand of new drill;
(3) owing to the interference of neighbourhood noises such as hydraulic system, motor, the signal that dynamic strain indicator collects receives certain influence, contains a large amount of noises in the test figure;
(4) hardware device that existing two tests are controlled and test macro needs has operating console, dynamic strain indicator, tachometry appearance, data acquisition device and capture card, costs an arm and a leg, and hardware cost is too high.
Summary of the invention
The objective of the invention is to overcome the shortcoming and defect of above-mentioned prior art; A kind of full head dip test testing hardware system is provided; This full head dip test testing hardware system makes the control of whole full head dip test process and test to be accomplished by people's operational computations machine; Replace artificial compounding practice test console button of former cause and computing machine and accomplished adopting of test and data, simplified the operating process of test, improved automaticity.
The object of the invention is realized through following technical proposals: full head dip test testing hardware system; Mainly constitute by pressure transducer, displacement transducer, torque sensor, drill speed sensor and 3 gear wheel speed probes; Said pressure transducer, displacement transducer, torque sensor, drill speed sensor and 3 gear wheel speed probes separate connection respectively have amplifier; All amplifiers all link to each other with same data collecting card, and data collecting card links to each other with computing machine.
Said pressure transducer is a pull pressure sensor.
Said displacement transducer is a Linear displacement transducer.
Said speed probe is the magnetoelectricity speed probe.
Said data collecting card is the pci data capture card.
Being configured to of said computing machine: 1.6G processor, 512M internal memory, Windows XP operating system.
In sum; The invention has the beneficial effects as follows: make the control of whole full head dip test process and test to accomplish by people's operational computations machine; Replace artificial compounding practice test console button of former cause and computing machine and accomplished adopting of test and data; Simplify the operating process of test, improved automaticity.
Description of drawings
Fig. 1 is the system chart of invention.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is done further detailed description, but embodiment of the present invention is not limited only to this.
Embodiment:
As shown in Figure 1; The present invention mainly is made up of pressure transducer, displacement transducer, torque sensor, drill speed sensor and 3 gear wheel speed probes; Said pressure transducer, displacement transducer, torque sensor, drill speed sensor and 3 gear wheel speed probes separate connection respectively have amplifier; All amplifiers all link to each other with same data collecting card, and data collecting card links to each other with computing machine.
Full head dip test need be measured the pressure of the drill that produces in the drill bit drilling process, and available shaft coupling installation pull pressure sensor is measured between measurement joint and drill bit.This design Selection Shanghai LTR-1M type pull pressure sensor that red sensor instrucment and meter plant produces of shaking.Its test philosophy is: utilize the resistance-strain principle; High-precision foil strain gauge is sticked on the elastic body through certain mode, do the time spent when sensor receives external force, through extrinsic motivated voltage; Stressed size conversion is become corresponding electromotive force, thereby reach the purpose of measuring the pressure of the drill.
Full head dip test need be measured the degree of depth of drill bit rock drilling.This paper designs the HG-LVDT Linear displacement transducer that adopts Beijing and light great achievement Electronics Co., Ltd..In the drill bit drilling process, adopt contact to install, accurately measure and creep into displacement, the sensing element of this sensor and electronic circuit package are assembled through the strict process precision in an Alperm housing, have remarkable resolution and repeatability.Its its test philosophy is: be made up of sensing element and electronic circuit, its inductance type sensing element is made up of a solenoid coil, moving iron core measuring staff and magnetic conductive shell.When iron core moved in coil, the inductance of coil changed, and inductance was changed being converted into linear electric signal through electronic circuit, carried out displacement measurement.
Produce bigger moment of torsion in the full head dip test process of above-mentioned torque sensor; Sensor test should be able to be measured the torque signal that produces in the drill bit drilling process accurately, reliably, the JN338A type rotating detector of this paper design Selection Beijing Sanjing Chuangye Technology Group Co.ltd.Its test philosophy is: the strain principles of electrical measurement is adopted in the measurement of torque sensor; After strain axis receives torsion to influence generation microdeformation, stick on the strainometer resistance generation respective change on the strain axis, the strainometer that will have the same strain characteristic is formed measuring bridge; The variation that the variation of strain resistor can change voltage signal into is measured; Power supply is sent into input ability source coupler after treatment, through coupling the energy is delivered on the strain axis, becomes burning voltage by mu balanced circuit and supplies with each electron device on the strain axis; Strain bridge converts the microdeformation of strain axis to electric signal; The V/F transducer is delivered in amplification through amplifier, through the output of output signal coupler, through output frequency modulation square-wave signal after the signal output apparatus shaping.
The drill speed sensor is selected the Shanghai SZMB-4 of instrument group company type magnetoelectricity speed probe for use, and its test philosophy is: convert corner displacement to electric impulse signal, supply counter to use.Sensor is responded to toothholder, inductive coil by induction gear; Compositions such as magnet steel are when induction gear has relative angular displacement with the induction toothholder, because the magnetic resistance change rate in the magnetic circuit; In inductive coil, produce induction electromotive force, through amplifying shaping, output electric pulse square-wave signal.
Data collecting card is a device of realizing simulating signal and digital signal conversion, and comprising multi-way switch, sampling holder, A/D card etc., these several parts all are in the forward path of PC, is the major part of forming data collecting card; Other interlock circuits also are integrated on the circuit board like Timer, bus interface circuit etc., accomplish collection, amplification and the mould/number conversion task to signal data.
Need 4 momentum signals of mean speed of measuring the pressure of the drill, creeping into displacement and 3 analog signalses of square and drill bit and gear wheel in the full head dip test process.The PCI-1710 multifunctional data acquisition card that this design Selection is ground magnificent company comes analog quantity and the digital quantity number in the acquisition test process.
The automatic control of full head dip test electrical control realization process of the test and test macro are to the control of hardware such as sensor and data collecting card.Creep into the process of fractured rock in the full head dip test process through start and stop, silicon controlled start and stop and the drill bit of solenoid control hydraulic pump; The tach signal of the pressure of the drill in the sensor measurement process of the test, moment of torsion, drilling depth and drill bit and each gear wheel, the capture card acquired signal converts weak electric signal to the forceful electric power signal through change-over panel and relay.
The invention enables the control and the test of whole full head dip test process to accomplish by people's operational computations machine; Replace artificial compounding practice test console button of former cause and computing machine and accomplished adopting of test and data; Simplify the operating process of test, improved automaticity.
The above only is preferred embodiment of the present invention, is not the present invention is done any pro forma restriction, and every foundation technical spirit of the present invention, any simple modification, equivalent variations to above embodiment did all fall within protection scope of the present invention.
Claims (6)
1. full head dip test testing hardware system; It is characterized in that; Mainly constitute by pressure transducer, displacement transducer, torque sensor, drill speed sensor and 3 gear wheel speed probes; Said pressure transducer, displacement transducer, torque sensor, drill speed sensor and 3 gear wheel speed probes separate connection respectively have amplifier, and all amplifiers all link to each other with same data collecting card, and data collecting card links to each other with computing machine.
2. full head dip test testing hardware according to claim 1 system is characterized in that said pressure transducer is a pull pressure sensor.
3. full head dip test testing hardware according to claim 1 system is characterized in that said displacement transducer is a Linear displacement transducer.
4. full head dip test testing hardware according to claim 1 system is characterized in that said speed probe is the magnetoelectricity speed probe.
5. full head dip test testing hardware according to claim 1 system is characterized in that said data collecting card is the pci data capture card.
6. full head dip test testing hardware according to claim 1 system is characterized in that, being configured to of said computing machine: 1.6G processor, 512M internal memory, Windows XP operating system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105601694A CN102466498A (en) | 2010-11-18 | 2010-11-18 | Test hardware system for full-scale bit test |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105601694A CN102466498A (en) | 2010-11-18 | 2010-11-18 | Test hardware system for full-scale bit test |
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| CN102466498A true CN102466498A (en) | 2012-05-23 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103869735A (en) * | 2014-03-06 | 2014-06-18 | 西京学院 | Electric control system for rock breaking tester |
| CN104297049A (en) * | 2014-11-10 | 2015-01-21 | 西南石油大学 | Shale crushing experimental device capable of considering drill string dynamic vibration and experimental method |
| CN109567894A (en) * | 2018-11-06 | 2019-04-05 | 张元豫 | Vertebra bone drill control system |
-
2010
- 2010-11-18 CN CN2010105601694A patent/CN102466498A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103869735A (en) * | 2014-03-06 | 2014-06-18 | 西京学院 | Electric control system for rock breaking tester |
| CN103869735B (en) * | 2014-03-06 | 2016-10-05 | 西京学院 | A kind of electric-control system of broken rock testing machine |
| CN104297049A (en) * | 2014-11-10 | 2015-01-21 | 西南石油大学 | Shale crushing experimental device capable of considering drill string dynamic vibration and experimental method |
| CN109567894A (en) * | 2018-11-06 | 2019-04-05 | 张元豫 | Vertebra bone drill control system |
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Application publication date: 20120523 |