CN106813911B - Hydraulic hammer performance parameter testing device and testing method thereof - Google Patents
Hydraulic hammer performance parameter testing device and testing method thereof Download PDFInfo
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- CN106813911B CN106813911B CN201611183314.5A CN201611183314A CN106813911B CN 106813911 B CN106813911 B CN 106813911B CN 201611183314 A CN201611183314 A CN 201611183314A CN 106813911 B CN106813911 B CN 106813911B
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- 238000012360 testing method Methods 0.000 title claims abstract description 96
- 238000005086 pumping Methods 0.000 claims abstract description 7
- 238000001514 detection method Methods 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 26
- 238000006073 displacement reaction Methods 0.000 claims description 21
- 238000010998 test method Methods 0.000 claims description 21
- 238000013461 design Methods 0.000 claims description 15
- 238000004364 calculation method Methods 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 14
- 239000012530 fluid Substances 0.000 claims description 7
- 238000005553 drilling Methods 0.000 abstract description 21
- 239000007788 liquid Substances 0.000 abstract description 19
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract 2
- 239000003345 natural gas Substances 0.000 abstract 1
- 239000003209 petroleum derivative Substances 0.000 abstract 1
- 238000004458 analytical method Methods 0.000 description 6
- 239000004615 ingredient Substances 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 238000009527 percussion Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000013178 mathematical model Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a hydraulic hammer performance parameter testing device and a testing method thereof, which relate to the field of petroleum and natural gas drilling, and the hydraulic hammer performance parameter testing device comprises: a hydraulic hammer; the liquid supply system comprises a pump provided with a variable frequency motor, and the pump is connected with the hydraulic hammer; the pressure testing device is communicated with the pump and is used for testing the pumping pressure of the pump; the flow detection device is connected with the pump and is used for testing the discharge capacity of the pump; and the control system is electrically connected with the pump and is used for controlling the power of the pump. The hydraulic hammer performance parameter testing device and the testing method thereof can test performance parameters of the hydraulic hammer under small pump pressure and small discharge capacity, and derive piston orifice sizes under different drilling pump pressure parameters and discharge capacity parameters, thereby providing a basis for selecting the piston orifice size in field test and application of the hydraulic hammer.
Description
Technical field
The present invention relates to oil and gas well drilling field, in particular to a kind of Hydro-efflux Hammer performance parameter testing device and its survey
Method for testing.
Background technique
In recent years, as oil/gas drilling gradually moves towards deep layer, the slow problem of hard formation drilling speed in deep layer becomes increasingly conspicuous.
Percussion drilling technology is one of the effective ways for solving the slow problem of hard formation drilling speed, by installing an impact on drill bit top
Device is constantly applied to drill bit by high-frequency percussion power caused by high-pressure fluid driving impactor, realizes that efficiency crushing is hard
The purpose of rock.
Impactor suitable for liquid drilling medium is known as Hydro-efflux Hammer, and the realization of the device impact function must rationally be set
Count the orifice dimensions of piston lower portion.Usually require founding mathematical models, analysis system percussion process fluid speed and pressure
The relationship of power, is calculated the performance parameter of hydraulical impact generating device, and obtains reasonable orifice dimensions, but Theoretical Design
There is a certain error, needs experimental verification.Since practical oil/gas drilling discharge capacity is greater than 30L/s, pressure is greater than 10MPa, it is necessary to
It to be tested using the drilling pump of high-power huge discharge, and conventional oil/gas drilling laboratory drilling well discharge capacity is lower than 10L/s, it is difficult
To meet test request；Furthermore the throttling piston pore size under the conditions of drilling well discharge capacity different in field operation and pump pressure is not phase
With, it is tested for the throttling piston pore size under each group of drilling well discharge capacity and pump pressure parameter combination clearly undesirable
's.Need to establish a kind of Novel hydraulic hammer performance testing device and test method thus, in existing experiment pumpage (< 10L/s)
With under pump pressure (< 10MPa) test Hydro-efflux Hammer performance parameter, and establish different drilling well discharge capacity parameters and be pumped parameter under piston
The size of throttle orifice, to select orifice dimensions to provide foundation when Hydro-efflux Hammer field test and application.
Summary of the invention
In order to overcome the drawbacks described above of the prior art, the technical problem to be solved is that provide one kind for the embodiment of the present invention
Hydro-efflux Hammer performance parameter testing device and its test method can test performance ginseng of the Hydro-efflux Hammer under small pump pressure and small displacement
Number, and the throttling piston pore sizes being derived by under different drilling wells pump pressure parameters and discharge capacity parameter, be Hydro-efflux Hammer field test and
Using when selection throttling piston pore size provide foundation.
The specific technical solution of the embodiment of the present invention is:
A kind of Hydro-efflux Hammer performance parameter testing device comprising:
Hydro-efflux Hammer；
Liquid-supplying system, the liquid-supplying system include the pump for being provided with variable-frequency motor, and the pump is connected with the Hydro-efflux Hammer；
With the pressure test device for pumping and being connected, it is used to test the pump pressure of the pump；
With the flow detector of the pump connection, it is used to test the discharge capacity of the pump；
With the control system for pumping and being mutually electrically connected, it is used to control the power of the pump.
In a preferred embodiment, the control system also with the pressure test device, the flow detection
Device is mutually electrically connected, and the control system is also used to collect and record the pressure test device and the flow detector
The numerical value measured.
In a preferred embodiment, the Hydro-efflux Hammer performance parameter testing device further includes test-bed, described
For Hydro-efflux Hammer through rope suspensions on the test-bed, the Hydro-efflux Hammer has liquid-inlet and liquid outlet, the liquid
Upward, the liquid-inlet is connected with the liquid-supplying system for import.
In a preferred embodiment, the maximum pump pressure of the pump is less than the design pressure drop of the Hydro-efflux Hammer, described
The discharge capacity of pump is less than the discharge capacity of the Hydro-efflux Hammer.
In a preferred embodiment, the flow detector is flowmeter.
A kind of Hydro-efflux Hammer performance parameter test method for above-mentioned Hydro-efflux Hammer performance parameter testing device, the Hydro-efflux Hammer
Including the piston with runner, there is throttle orifice on the runner；The Hydro-efflux Hammer performance parameter test method includes:
Control the throttle orifice closing or the size of opening degree of the Hydro-efflux Hammer；
Open the pump, be gradually increased the pump discharge capacity until the Hydro-efflux Hammer start operation, described in start recording flow
The numerical value of amount detecting device and the pressure test device measured；
It is gradually increased the discharge capacity of the Hydro-efflux Hammer, the flow detector and institute are inscribed when recording a certain in the process
State the numerical value of pressure test device measured；
When the pump pressure of the pump reaches rated pressure, the flow detector and the pressure test device are recorded
The numerical value measured.
In a preferred embodiment, the size of the throttle orifice opening degree of the Hydro-efflux Hammer can be mentioned with the pump
The design work pressure drop of the pump pressure of confession, the Hydro-efflux Hammer has preset relation.
In a preferred embodiment, the design work pressure drop for pumping the pump pressure and the Hydro-efflux Hammer that can be provided
Difference it is smaller, the throttle orifice opening degree of the Hydro-efflux Hammer is bigger.
In a preferred embodiment, when the pump pressure of the pump reaches rated pressure, after first keeping preset time
Re-record the numerical value of the flow detector and the pressure test device measured.
In a preferred embodiment, during being gradually increased the discharge capacity of the Hydro-efflux Hammer, in the process
The a certain moment records the flow detector at this time and the pressure after keeping the discharge capacity of the Hydro-efflux Hammer to stablize preset time
The numerical value of force test device measured is further continued for increasing the discharge capacity of the Hydro-efflux Hammer.
A kind of determination method of Hydro-efflux Hammer orifice dimensions comprising:
Acting discharge capacity is obtained based on preset Hydro-efflux Hammer pressure drop；
The emptying channel discharge capacity on the piston runner of Hydro-efflux Hammer is obtained based on total displacement and the acting discharge capacity；
It is obtained based on emptying channel discharge capacity along journey pressure drop；
Throttle orifice pressure drop is obtained along journey pressure drop and the Hydro-efflux Hammer pressure drop based on described；
Orifice diameter is obtained based on the throttle orifice pressure drop, emptying channel discharge capacity.
In a preferred embodiment, in described the step of obtaining acting discharge capacity based on preset Hydro-efflux Hammer pressure drop
In, specific formula for calculation is as follows:
Wherein, Q1Indicate acting discharge capacity, Δ P indicates Hydro-efflux Hammer pressure drop, a2、b2、c2Indicate constant.
In a preferred embodiment, described based on total displacement and the acting discharge capacity obtains the piston of Hydro-efflux Hammer
In the step of emptying channel discharge capacity on runner, specific formula for calculation:
Q2=Q-Q1
Wherein, Q1Indicate acting discharge capacity, Q indicates total displacement, Q2Indicate emptying channel discharge capacity.
In a preferred embodiment, in described the step of being obtained based on emptying channel discharge capacity along journey pressure drop
In, specific formula for calculation is as follows:
Wherein, Q2Indicate emptying channel discharge capacity, Δ P2It indicates along journey pressure drop, a3、b3、c3Indicate constant.
In a preferred embodiment, it is throttled based on described along journey pressure drop and the Hydro-efflux Hammer pressure drop described
In the step of hole pressure drop, specific formula for calculation is as follows:
ΔP2=Δ P- Δ P1
Wherein, Δ P2Indicate that, along journey pressure drop, Δ P indicates Hydro-efflux Hammer pressure drop, Δ P1Indicate throttle orifice pressure drop.
In a preferred embodiment, it is obtained described based on the throttle orifice pressure drop, emptying channel discharge capacity
In the step of orifice diameter, specific formula for calculation is as follows:
Wherein, Δ P1Indicate throttle orifice pressure drop, ρ indicates fluid density, Q2Indicate emptying channel discharge capacity, CdIndicate flow system
Number, d indicate orifice diameter.
In a preferred embodiment, the value range of the discharge coefficient is between 0.85 to 0.95.
Technical solution of the present invention have it is following significant the utility model has the advantages that
1, the section that Hydro-efflux Hammer performance parameter testing device provided in the present invention and its test method pass through control Hydro-efflux Hammer
The feelings of the size of discharge orifice opening degree, the discharge capacity pumped in existing laboratory and pump pressure much smaller than Hydro-efflux Hammer design discharge capacity and pressure drop
Under condition, test obtains performance parameter of the Hydro-efflux Hammer under different conditions, and the performance parameter data for the Hydro-efflux Hammer which obtains can
Think that design discharge capacity and pressure drop are greater than the orifice dimensions of piston in the discharge capacity of pump and the Hydro-efflux Hammer of pump pressure in laboratory really
It is fixed that foundation is provided.
2, the determination method of Hydro-efflux Hammer orifice dimensions provided in the present invention can determine that different pressures rank, discharge capacity are wanted
The size of lower Hydro-efflux Hammer throttle orifice is sought, it is especially right to select orifice dimensions to provide foundation when Hydro-efflux Hammer field test and application
The Hydro-efflux Hammer for the test scope that laboratory can bear is much larger than in pressure drop and total displacement.
Detailed description of the invention
Attached drawing described here is only used for task of explanation, and is not intended to limit model disclosed by the invention in any way
It encloses.In addition, shape and proportional sizes of each component in figure etc. are only schematical, it is used to help the understanding of the present invention, and
It is not the specific shape and proportional sizes for limiting each component of the present invention.Those skilled in the art under the teachings of the present invention, can
Implement the present invention to select various possible shapes and proportional sizes as the case may be.
Fig. 1 is the structural schematic diagram of Hydro-efflux Hammer performance parameter testing device in the embodiment of the present invention.
Fig. 2 is the flow chart of Hydro-efflux Hammer performance parameter test method in the embodiment of the present invention.
Fig. 3 is the flow chart of the determination method of Hydro-efflux Hammer orifice dimensions in the embodiment of the present invention.
The appended drawing reference of the figures above:
1, Hydro-efflux Hammer；2, it pumps；3, control system；4, feed flow pipeline；5, test-bed；6, rope.
Specific embodiment
With reference to the drawings and the description of the specific embodiments of the present invention, details of the invention can clearly be understood.But
It is the specific embodiment of invention described herein, purpose for explaining only the invention, and cannot understand in any way
At being limitation of the present invention.Under the teachings of the present invention, technical staff is contemplated that based on any possible change of the invention
Shape, these are regarded as belonging to the scope of the present invention.It should be noted that when element is referred to as " being set to " another yuan
Part, it can directly on the other element or there may also be elements placed in the middle.When an element is considered as " connection "
Another element, it can be directly to another element or may be simultaneously present centering elements.Term " installation ",
" connected ", " connection " shall be understood in a broad sense, for example, it may be mechanical connection or electrical connection, are also possible to inside two elements
Connection, can be directly connected, can also indirectly connected through an intermediary, for the ordinary skill in the art,
The concrete meaning of above-mentioned term can be understood as the case may be.Term as used herein " vertical ", " horizontal ",
"upper", "lower", "left", "right" and similar statement for illustrative purposes only, are not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein and the technical field for belonging to the application
The normally understood meaning of technical staff is identical.The term used in the description of the present application is intended merely to description tool herein
The purpose of the embodiment of body, it is not intended that in limitation the application.Term as used herein "and/or" includes one or more
Any and all combinations of relevant listed item.
Fig. 1 is the structural schematic diagram of Hydro-efflux Hammer performance parameter testing device in the embodiment of the present invention, as shown in Figure 1, at this
A kind of Hydro-efflux Hammer performance parameter testing device is proposed in application, which includes: Hydro-efflux Hammer；For
Liquid system, liquid-supplying system include the pump for being provided with variable-frequency motor, and pump is connected with Hydro-efflux Hammer；The pressure test being connected with pump fills
It sets, is used to test the pump pressure of pump；With the flow detector of pump connection, it is used to test the discharge capacity of pump；Mutually electrically connect with pump
The control system connect is used to control the power of pump.
Hydro-efflux Hammer, i.e. hydraulic in-the-hole hammer are the generating devices of shock loading in hydraulical impact rotary drilling, utilize drilling
Energy in the flushing liquor of slush pump supply in the process, the block stamp formation directly driven in Hydro-efflux Hammer pump, and even
The continuous shock loading for constantly applying certain frequency to lower drilling tool, to realize rotary-percussive drilling.According to the class of Hydro-efflux Hammer
Type is different, and internal structure is slightly different.But inside Hydro-efflux Hammer generally include a piston with runner, stream
There is throttle orifice on road, for example, a kind of hydraulical impact generating device is disclosed in Chinese patent CN105178845A, the punching of surging
Firing generating apparatus to be includes above structure.It is pumped by the hydraulic driving piston in piston runner and drives block stamp
Formation pumps, and the size of throttle orifice then directly influences Hydro-efflux Hammer pressure drop and pump is conveyed to Hydro-efflux Hammer driving liquid
Relationship between total displacement.
Liquid-supplying system can by separate unit or more pump and feed flow pipeline form, more pump can with after serial or parallel connection with liquid
The liquid-inlet of dynamic hammer is connected.Variable-frequency motor can be installed on each pump, variable-frequency motor can be according to control system
Instruction so that adjust pump liquid supply pressure and liquid supply rate.In a kind of feasible embodiment, the maximum pump pressure of pump can be small
In the pressure drop of Hydro-efflux Hammer, the discharge capacity of pump can be less than the discharge capacity of Hydro-efflux Hammer.
Pressure test device is connected with the pump in liquid-supplying system, can test the pressure of pump output liquid.Pressure is surveyed
The output pressure that the exit that can be directly installed on and pump in liquid-supplying system directly measures pump is set in trial assembly, also may be mounted at pump with
To test the pressure for being conveyed to Hydro-efflux Hammer on feed flow pipeline between Hydro-efflux Hammer.
Flow detector is connected with the outlet of pump, is used to test the discharge capacity of pump.Flow detector can be direct
It is mounted on the discharge capacity that the exit pumped in liquid-supplying system directly measures pump, also may be mounted at the liquid supply pipe between pump and Hydro-efflux Hammer
The discharge capacity of pump is measured on line.For example, flow detector can be flowmeter etc..
Control system is mutually electrically connected with pump, can control the power of pump by control system, so that pump is at not
Same operating power, so that pump can adjust liquid supply pressure and liquid supply rate.Control system can also with pressure test device,
Flow detector is mutually electrically connected, and control system is also used to collect and record the survey of pressure test device and flow detector
Numerical value, data can be acquired, transmitted, handle, may be implemented long-range monitoring, teledata automatic collection and
Test process automatic control etc..
Hydro-efflux Hammer performance parameter testing device further includes test-bed, and Hydro-efflux Hammer passes through rope suspensions on test-bed,
Hydro-efflux Hammer has liquid-inlet and liquid outlet, and upward, liquid-inlet is connected liquid-inlet with liquid-supplying system.Testing stand
The main purpose of frame be provide the interface connecting with other systems for fixing Hydro-efflux Hammer, while ensure experimentation equipment and
The safety of personnel.
It also proposed a kind of Hydro-efflux Hammer performance parameter test method in the application, Fig. 2 is Hydro-efflux Hammer in the embodiment of the present invention
The flow chart of performance parameter test method, as shown in Figure 2.
It include blind hole test and the test two parts that throttle in the test method.Wherein, blind hole test be will be in Hydro-efflux Hammer
Throttle orifice block, inject liquid, such as clear water is stepped up pumpage, observes the movement of Hydro-efflux Hammer, and records corresponding discharge capacity
And pump pressure.Throttling test is that the throttle orifice in Hydro-efflux Hammer is opened a certain size, injects liquid, and such as clear water is stepped up
Discharge capacity, observation Hydro-efflux Hammer movement, and record corresponding discharge capacity and pump pressure.
In the Hydro-efflux Hammer performance parameter test method, specific step is as follows for blind hole test:
The throttle orifice closing for controlling Hydro-efflux Hammer, i.e., be completely used for piston acting by the driving liquid that pump is passed through Hydro-efflux Hammer；
Open pump, be gradually increased pump discharge capacity until Hydro-efflux Hammer start operation, start recording flow detector and pressure
The numerical value of test device measured, the numerical value of flow detector are acting discharge capacity Q1, and the numerical value of pressure test device is to surge
Hammer pressure drop Δ P into shape；
It is gradually increased the discharge capacity of Hydro-efflux Hammer, records dirty amount detecting device of a certain moment and pressure test dress in the process
The numerical value measured set.During being gradually increased the discharge capacity of Hydro-efflux Hammer, a certain moment can keep surging in the process
The numerical value measured that flow detector at this time and pressure test device are recorded after the stable preset time of the discharge capacity of hammer, is further continued for
Increase the discharge capacity of Hydro-efflux Hammer.In this process, a certain moment can be multiple time points, and then can recorde down multiple time points
The numerical value of dirty amount detecting device and pressure test device measured.Such as preset time can be 10 seconds, 20 seconds etc., so
Purpose is the accuracy and stability in order to guarantee to measure numerical value.
When the pump pressure of pump reaches rated pressure, the numerical value of flow detector and pressure test device measured is recorded.
Specifically, re-recording flow detector and pressure after can first keeping preset time when the pump pressure of pump reaches rated pressure
The numerical value of force test device measured, such as preset time can be 10 seconds, 20 seconds etc..
In the Hydro-efflux Hammer performance parameter test method, specific step is as follows for the test that throttles:
Control the size of the throttle orifice opening degree of Hydro-efflux Hammer.The size and pump institute's energy of the throttle orifice opening degree of Hydro-efflux Hammer
The design work pressure drop of the pump pressure, Hydro-efflux Hammer of offer has preset relation.If pump pressure and liquid that the test device can be provided
The design work pressure drop difference of dynamic hammer is smaller, then what throttle orifice was opened is relatively large in diameter, or fully opens；If test device institute energy
The pump pressure of offer is bigger than the design work pressure drop difference of Hydro-efflux Hammer, then the diameter that throttle orifice is opened is smaller.
Open pump, be gradually increased pump discharge capacity until Hydro-efflux Hammer start operation, start recording flow detector and pressure
The numerical value of test device measured.The numerical value of flow detector is total displacement Q, and the numerical value of pressure test device is Hydro-efflux Hammer pressure
Δ P drops.
It is gradually increased the discharge capacity of Hydro-efflux Hammer, records dirty amount detecting device of a certain moment and pressure test dress in the process
The numerical value measured set.During being gradually increased the discharge capacity of Hydro-efflux Hammer, a certain moment can keep surging in the process
The numerical value measured that flow detector at this time and pressure test device are recorded after the stable preset time of the discharge capacity of hammer, is further continued for
Increase the discharge capacity of Hydro-efflux Hammer.In this process, a certain moment can be multiple time points, and then can recorde down multiple time points
The numerical value of dirty amount detecting device and pressure test device measured.Such as preset time can be 10 seconds, 20 seconds etc., so
Purpose is the accuracy and stability in order to guarantee to measure numerical value.
When the pump pressure of pump reaches rated pressure, the numerical value of flow detector and pressure test device measured is recorded.
Specifically, re-recording flow detector and pressure after can first keeping preset time when the pump pressure of pump reaches rated pressure
The numerical value of force test device measured, such as preset time can be 10 seconds, 20 seconds etc..
Hydro-efflux Hammer performance parameter test method in the application passes through the size of the throttle orifice opening degree of control Hydro-efflux Hammer,
In the case that the discharge capacity and pump pressure pumped in existing laboratory is much smaller than Hydro-efflux Hammer design discharge capacity and pressure drop, test obtains Hydro-efflux Hammer
The performance parameter data of performance parameter under different conditions, the Hydro-efflux Hammer which obtains can be big for design discharge capacity and pressure drop
Determining for the orifice dimensions of piston provides foundation in the discharge capacity of pump in laboratory and the Hydro-efflux Hammer of pump pressure.
According to the number between Hydro-efflux Hammer pressure drop Δ P and total displacement Q obtained in above-mentioned Hydro-efflux Hammer performance parameter test method
Accordingly and Hydro-efflux Hammer pressure drop Δ P and acting discharge capacity Q1Data ignore since the pipe in line of test device is shorter along stroke pressure
Loss, according to hydrodynamics it is found that Hydro-efflux Hammer pressure drop and discharge capacity are at quadratic relation.Because Hydro-efflux Hammer runner relationship is complicated, it is difficult to
Relatively determining relationship is established, according to Mathematical Statistic Analysis Method, using quadratic polynomial to the relationship between pressure drop and discharge capacity
It is fitted.
According to the data of Hydro-efflux Hammer pressure drop Δ P and total displacement Q that above-mentioned throttling is tested, to Hydro-efflux Hammer pressure drop Δ P with
Relationship between total displacement Q is fitted to obtain formula (1), and the degree of correlation of the fit procedure reaches 0.9 or more,
Δ P=f1(Q)=a1Q2+b1Q+c1 (1)
The Hydro-efflux Hammer pressure drop Δ P and acting discharge capacity Q tested according to above-mentioned blind hole1Data, to Hydro-efflux Hammer pressure drop Δ P
With acting discharge capacity Q1Between relationship be fitted to obtain formula (1), the degree of correlation of the fit procedure reaches 0.9 or more,
In terms of the degree of correlation, if the relational expression degree of correlation for testing fitting twice reaches 0.9 or more, illustrate that test data has
There is higher confidence level, lower step analysis can be carried out according to the data.
Hydro-efflux Hammer is more complex along the calculating of journey pressure drop, and by analyzing test data, research Hydro-efflux Hammer is along journey pressure drop and emptying
Relationship between the discharge capacity of channel provides basis for orifice dimensions design.
By Hydro-efflux Hammer pressure drop Δ P and total displacement Q, acting discharge capacity Q1Between formula (1), (2), can obtain total displacement Q, do
Function discharge capacity Q1Following formula (3), (4) are shown respectively.
The discharge capacity that theoretically Hydro-efflux Hammer is done work under same pressure is identical.Based on this, the total displacement Q for the test that throttles
It should be acting discharge capacity Q1With emptying channel (runner i.e. in piston) discharge capacity Q2The sum of, therefore, empty channel discharge capacity Q2Such as formula
(5) shown in:
Q2=Q-Q1 (5)
Empty the throttle orifice pressure drop Δ P in channel1It is calculated using injection drop formula (6):
Wherein, Δ P1Indicate throttle orifice pressure drop, Pa；ρ indicates fluid density, kg/m3；Q2Indicate emptying channel discharge capacity, m3/
s；CdIndicate discharge coefficient, zero dimension takes 0.85~0.95；D indicates orifice diameter, m.
Circulation in above-mentioned test process, since drilling fluid has pollution to environment, using clear water as pump and Hydro-efflux Hammer
Medium, therefore, ρ=1000kg/m3。
Hydro-efflux Hammer pressure drop Δ P is throttle orifice pressure drop Δ P1With valve member passage, emptying channel etc. along journey pressure drop Δ P2The sum of, because
This, valve member passage, emptying channel etc. are along journey pressure drop Δ P2As shown in formula (7).
ΔP2=Δ P- Δ P1 (7)
According to hydrodynamics it is found that Δ P2With emptying channel discharge capacity Q2It should be at quadratic relation.According to formula (5) and formula
(7) calculated result returns calculation formula using mathematical analysis method, and fitting obtains valve member passage, emptying channel etc. along journey pressure
Δ P drops2With emptying channel discharge capacity Q2Between relationship such as formula (8) shown in.The degree of correlation reaches 0.9 or more in fit procedure, table
Bright analysis method has preferable confidence level.
It is surveyed the case where giving preset Hydro-efflux Hammer pressure drop Δ P and total displacement Q for above-mentioned according to above-mentioned analysis
The Hydro-efflux Hammer of the same race of examination, proposes a kind of determination method of Hydro-efflux Hammer orifice dimensions in this application, and Fig. 3 is that the present invention is implemented
The flow chart of the determination method of Hydro-efflux Hammer orifice dimensions in example, as shown in figure 3, method includes the following steps:
S201: acting discharge capacity is obtained based on preset Hydro-efflux Hammer pressure drop, specific formula for calculation is as follows:
Wherein, Q1Indicate acting discharge capacity, Δ P indicates Hydro-efflux Hammer pressure drop, a2、b2、c2Indicate known constant.
S202: obtaining the emptying channel discharge capacity on the piston runner of Hydro-efflux Hammer based on total displacement and acting discharge capacity, specific to count
Calculate formula:
Q2=Q-Q1
Wherein, Q1Indicate acting discharge capacity, Q indicates total displacement, Q2Indicate emptying channel discharge capacity.
S203: it is obtained based on emptying channel discharge capacity along journey pressure drop, specific formula for calculation is as follows:
Wherein, Q2Indicate emptying channel discharge capacity, Δ P2It indicates along journey pressure drop, a3、b3、c3Indicate constant.
S204: based on throttle orifice pressure drop is obtained along journey pressure drop and Hydro-efflux Hammer pressure drop, specific formula for calculation is as follows:
ΔP2=Δ P- Δ P1
Wherein, Δ P2Indicate that, along journey pressure drop, Δ P indicates Hydro-efflux Hammer pressure drop, Δ P1Indicate throttle orifice pressure drop.
S205: orifice diameter is obtained based on throttle orifice pressure drop, emptying channel discharge capacity, specific formula for calculation is as follows:
Wherein, Δ P1Indicate throttle orifice pressure drop, ρ indicates fluid density, Q2Indicate emptying channel discharge capacity, CdIndicate flow system
Number, value range can be between 0.85 to 0.95, and d indicates orifice diameter.
Using data obtained in Hydro-efflux Hammer performance parameter test method, in conjunction with the determination side of the Hydro-efflux Hammer orifice dimensions
Method can determine the size of Hydro-efflux Hammer throttle orifice under different pressures rank, displacement requirements, when being Hydro-efflux Hammer field test and application
It selects orifice dimensions to provide foundation, the liquid for the test scope that laboratory can bear is much larger than particularly with pressure drop and total displacement
Dynamic hammer.
Multiple element, ingredient, component or step can be provided by single integrated component, ingredient, component or step.Optionally
Ground, single integrated component, ingredient, component or step can be divided into multiple element, ingredient, component or the step of separation.It is used to
The open "a" or "an" for describing element, ingredient, component or step is not said to exclude other elements, ingredient, component
Or step.
All the embodiments in this specification are described in a progressive manner, the highlights of each of the examples are with
The difference of other embodiments, the same or similar parts between the embodiments can be referred to each other.Above-described embodiment is only
Illustrate technical concepts and features of the invention, its object is to those skilled in the art can understand the contents of the present invention
And implement accordingly, it is not intended to limit the scope of the present invention.Equivalence changes made by all Spirit Essences according to the present invention
Or modification, it should be covered by the protection scope of the present invention.
Claims (5)
1. a kind of Hydro-efflux Hammer performance parameter test method for Hydro-efflux Hammer performance parameter testing device, which is characterized in that described
Hydro-efflux Hammer performance parameter testing device: including: Hydro-efflux Hammer；Liquid-supplying system, the liquid-supplying system include being provided with variable-frequency motor
Pump, the pump are connected with the Hydro-efflux Hammer, and the maximum pump pressure of the pump is less than the design pressure drop of the Hydro-efflux Hammer, the pump
Discharge capacity is less than the discharge capacity of the Hydro-efflux Hammer；With the pressure test device for pumping and being connected, it is used to test the pump pressure of the pump；
With the flow detector of the pump connection, it is used to test the discharge capacity of the pump；With the control system for pumping and being mutually electrically connected
System, is used to control the power of the pump；The Hydro-efflux Hammer includes the piston with runner, has throttle orifice on the runner,
The orifice diameter are as follows: acting discharge capacity is obtained based on preset Hydro-efflux Hammer pressure drop, specific formula for calculation is as follows:
Wherein, Q1Indicate acting discharge capacity, Δ P indicates Hydro-efflux Hammer pressure drop, a2、b2、c2Indicate constant；
The emptying channel discharge capacity on the piston runner of Hydro-efflux Hammer is obtained based on total displacement and the acting discharge capacity, it is specific to calculate public affairs
Formula:
Q2=Q-Q1
Wherein, Q1Indicate acting discharge capacity, Q indicates total displacement, Q2Indicate emptying channel discharge capacity；
It is obtained based on emptying channel discharge capacity along journey pressure drop, specific formula for calculation is as follows:
Wherein, Q2Indicate emptying channel discharge capacity, Δ P2It indicates along journey pressure drop, a3、b3、c3Indicate constant；
Throttle orifice pressure drop is obtained along journey pressure drop and the Hydro-efflux Hammer pressure drop based on described, specific formula for calculation is as follows:
ΔP2=Δ P- Δ P1
Wherein, Δ P2Indicate that, along journey pressure drop, Δ P indicates Hydro-efflux Hammer pressure drop, Δ P1Indicate throttle orifice pressure drop；
Orifice diameter is obtained based on the throttle orifice pressure drop, emptying channel discharge capacity, specific formula for calculation is as follows:
Wherein, Δ P1Indicate throttle orifice pressure drop, ρ indicates fluid density, Q2Indicate emptying channel discharge capacity, CdIndicate discharge coefficient, d
Indicate orifice diameter；
The Hydro-efflux Hammer performance parameter test method includes:
Control the throttle orifice closing or the size of opening degree of the Hydro-efflux Hammer；
Pump is opened, is gradually increased the discharge capacity of the pump until the Hydro-efflux Hammer starts operation, flow detection described in start recording fills
The numerical value measured with the pressure test device is set, the numerical value that the flow detector measures is acting discharge capacity Q1；
It is gradually increased the discharge capacity of the Hydro-efflux Hammer, the flow detector and the pressure are inscribed when recording a certain in the process
The numerical value of force test device measured, the numerical value that the flow detector measures are total displacement Q；
When the pump pressure of the pump reaches rated pressure, measuring for the flow detector and the pressure test device is recorded
Numerical value；Δ P is obtained according to the numerical value of the pressure test device measured.
2. Hydro-efflux Hammer performance parameter test method according to claim 1, which is characterized in that the throttle orifice of the Hydro-efflux Hammer
The size of opening degree and the design work pressure drop for pumping the pump pressure, the Hydro-efflux Hammer that can be provided have preset relation.
3. Hydro-efflux Hammer performance parameter test method according to claim 2, which is characterized in that described to pump the pump that can be provided
Pressure is smaller with the difference of the design work pressure drop of the Hydro-efflux Hammer, and the throttle orifice opening degree of the Hydro-efflux Hammer is bigger.
4. Hydro-efflux Hammer performance parameter test method according to claim 1, which is characterized in that when the pump pressure of the pump reaches
When rated pressure, the number of the flow detector and the pressure test device measured first is re-recorded after holding preset time
Value.
5. Hydro-efflux Hammer performance parameter test method according to claim 1, which is characterized in that be gradually increased described surge
During the discharge capacity of hammer, in the process a certain moment keep the Hydro-efflux Hammer discharge capacity stablize preset time after record this
The numerical value of Shi Suoshu flow detector and the pressure test device measured is further continued for increasing the discharge capacity of the Hydro-efflux Hammer.
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