CN106769843A - A kind of drilling leakage blockage material friction coefficient measuring method and device - Google Patents
A kind of drilling leakage blockage material friction coefficient measuring method and device Download PDFInfo
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- CN106769843A CN106769843A CN201710028335.8A CN201710028335A CN106769843A CN 106769843 A CN106769843 A CN 106769843A CN 201710028335 A CN201710028335 A CN 201710028335A CN 106769843 A CN106769843 A CN 106769843A
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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- G01N19/02—Measuring coefficient of friction between materials
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Abstract
The invention provides a kind of drilling leakage blockage material friction coefficient measuring method, and there is provided it is a kind of can effective simulation stratum condition drilling leakage blockage material friction coefficient measuring device.Loss circulation material individual layer after by dried process, it is uniform, entirely cohere on the different stainless steel flat plate of two block sizes, prepare loss circulation material friction plate, carry out the conventional different types of loss circulation material skin-friction coefficient of measure field.Underground high temperature and the fluid environment during friction are simulated by the way that loss circulation material rubbing surface is immersed in high-temperature stratum fluid.Loss circulation material friction plate linear uniform motion is controlled by the uniform velocity drive link and linear motion guide, it is ensured that the repeatability and comparability of friction coefficient measurement result.The present invention can preferably provide foundation for drilling leakage blockage material, during belonging to oil and gas exploration and development, for the experimental technique and device of loss circulation material fundamental mechanics parameter friction coefficient measurement.
Description
Technical field
The present invention relates to working solution leakage control field, this method and dress during oil and gas industry drilling completion
Putting can rapidly and efficiently measure loss circulation material skin-friction coefficient by simulated formation high temperature and fluid environment, be drilling leakage blockage material
Material is preferred to provide foundation, during belonging to oil and gas exploration and development, for loss circulation material fundamental mechanics parameter-friction
The experimental technique and device of coefficient measurement.
Background technology
As deep, exhaustion ground unconventional and in mid-later development phase are progressively moved towards in the exploration and development of Global Oil and Gas Resources
Layer, the control of underground complex accident, safe and efficient drilling well and reservoir protection all propose requirement higher to working solution leakage control.
Leakage channel is blocked using loss circulation materials such as particle, fibers, is the main method of Reservoir Section working solution leakage control, be also non-storage
One of interval stratum working solution leakage control most common method.
Loss circulation material skin-friction coefficient plays important influence to working solution leakage control effect, is loss circulation material selection
Main Basiss.Therefore, design simulation stratum high-temperature and the loss circulation material skin-friction coefficient measurement apparatus of fluid environment, form
Loss circulation material skin-friction coefficient measuring method, has important to working solution leakage control, safe and efficient drilling well and reservoir protection
Meaning.But current loss circulation material friction coefficient measurement aspect still has the following disadvantages：
(1) stratum high-temperature and fluid environment under actual friction condition can not be simulated；
(2) effective ways of measurement loss circulation material skin-friction coefficient are lacked.
The content of the invention
For lacking the effective measuring method of loss circulation material coefficient of friction, it is impossible to simulate the problem of underground high temperature fluid environment,
The invention provides a kind of method of efficient measurement loss circulation material coefficient of friction, and can effective simulation stratum condition there is provided one kind
Drilling leakage blockage material friction coefficient measuring device.The purpose of the present invention is achieved through the following technical solutions：
The loss circulation material of test will be needed to be put into thermostatic drying chamber first, it is standby after dried process.Then leak stopping material is prepared
, uniformly be bonded on flat board the loss circulation material after dried process using adhesive by material friction plate, it is ensured that loss circulation material individual layer lays,
And the loss circulation material friction plate that will be glued is placed on clean glass plate and gently presses to ensure surfacing.Ensure that adhesive will not be seeped into
Particle surface, loss circulation material mantle friction property is not influenceed.Loss circulation material friction plate includes upper and lower two, and lower friction plate is prepared
It is held within afterwards on the support in constant temperature fluid bath, holding is stained with loss circulation material one and faces up.Upper friction plate lies in after weighing
Lower friction plate high order end, counterweight puts down center and fixation on upper friction plate gently.Next to being slowly injected into constant temperature fluid bath
Corresponding downhole fluid (drilling fluid, stratum water, completion fluid etc.) during actual friction condition, it is ensured that liquid level did not just have CONTACT WITH FRICTION
Face.The corresponding formation temperature of actual friction condition is heated up to constant temperature fluid bath and keep constant.Finally by upper friction plate and traction
Support is connected, and controls its rate travel in (4.0-5.0) mm/min.Stop when upper friction plate slides into lower friction plate right margin
Only test, preserve data.According to the frictional force (F for obtainingf) data, coefficient of friction is calculated using formula (1).Every group of experiment is repeated
Three times, take the coefficient of friction average value that three experiments are obtained.
Drilling leakage blockage material friction coefficient measuring device includes：Friction module, power plant module, control module and data acquisition
Module.
Friction module mainly includes constant temperature fluid bath, support, coheres flat board, counterweight, 5 parts of resistive heater.Constant temperature liquid
Groove is made up of corrosion resistant stainless steel material, can contain the formation fluids such as drilling fluid, stratum water, acid solution, alkali lye to simulate reality
Formation fluid environment under the friction condition of border, containing liquid measure can voluntarily adjust as needed.Liquid bath bottom is provided with resistive heater, leads to
Cross fluid temperature (F.T.) in control liquid bath and simulate formation temperature under actual friction condition, temperature regulating range is normal temperature~120 DEG C.Support
Constant temperature fluid bath bottom is welded on, level is used for the stainless steel flat plate that loss circulation material is cohered in fixation, and it highly can be by fastening bolt
Regulation.Counterweight is used for normal force of the adjustment effect on rubbing surface, and quality is optional.
Friction module is connected by towing bracket, and towing bracket is located on line slideway, and by drive link and dynamical system
System is connected.Linear motion guide is used to constrain the movement locus of towing bracket so that the pulling force that power plant module is provided is maintained at same
On one horizontal linear.Drive link ensures towing bracket and upper friction plate uniform motion.It is located on towing bracket in experimentation
Pulling force, displacement and velocity sensor collection experimental data, calculate for loss circulation material coefficient of friction.
The present invention compared with conventional friction coefficient measuring method and device, with following advantage：
(1) the drilling leakage blockage effective measuring method of material friction coefficient is formd.It is applicable loss circulation material type extensively, spherical,
The type such as sheet, fiber loss circulation material is applicable.It is many using different type loss circulation material compounding, the method in actual Process of Leaking Stoppage
Single type loss circulation material coefficient of friction can be not only measured with device, it is also possible to measure between different type loss circulation material, with
And the coefficient of friction after different type loss circulation material compounding, measuring method closing to reality situation.
(2) measuring method is easy, efficient, repeatable strong.Loss circulation material friction plate prepares easy, efficient, preparation process
In eliminate the influence of initial friction face geometric shape, it is ensured that it is comparable between the repeatability and measurement result of measurement result
Property.
(1) stratum high-temperature and fluid environment under actual friction condition can be simulated.The loss circulation material friction coefficient measurement
Device experimental temperature is up to 120 DEG C.The formation fluid environment such as drilling fluid, stratum water, acid solution, alkali lye can be simulated.
(4) measurement apparatus high degree of automation.By computer, displacement transducer, velocity sensor and pulling force sensor group
Into data acquisition module, with record data it is accurate, fast and automatically change degree it is high the characteristics of.
Brief description of the drawings
Fig. 1 is drilling leakage blockage material friction coefficient measuring device schematic diagram.
In figure, 1- constant temperature fluid baths, 2- counterweights, 3- upper flat plates, 4- loss circulation materials, flat board under 5-, 6- supports, 7- supports are put down
Platform, 8- resistive heaters, 9- formation fluids, 10- finer wires, 11- towing brackets, 12- drive links, 13- linear motion guides,
14- motor, 15- platforms, 16- displays, 17- data wires.
Specific embodiment
(1) loss circulation material and friction plate of test will be needed to be put into thermostatic drying chamber, drying temperature is set to 60 DEG C, dries
Taken out after 48h, be put into standby in drying basin；
(2) prepared by loss circulation material friction plate.The loss circulation material after dried process is uniformly bonded on flat board using adhesive,
Ensure that loss circulation material individual layer lays, and the loss circulation material friction plate that will be glued is placed on clean glass plate and gently presses to ensure that surface is put down
It is whole.Ensure that adhesive will not be seeped into particle surface, loss circulation material mantle friction property is not influenceed；
(3) by the loss circulation material friction plate that step (2) two block sizes of preparation are different, friction plate under the larger conduct of area,
Area, area is less as upper friction plate.Lower friction plate is held within the support in constant temperature fluid bath, holding is stained with stifled
Leakage material one faces up.(weight is designated as W after upper friction plate is weighedN) lie in lower friction plate high order end and without departing from its left end
Border, holding is stained with loss circulation material one and faces down.Counterweight is put down gently in upper friction plate upper surface center and fixed, thin steel is used
With towing bracket be connected upper friction plate by silk；
(4) to corresponding fluid (water base/oil base drilling fluid, stratum when actual friction condition is slowly injected into constant temperature fluid bath
Water, completion fluid etc.), it is ensured that liquid level did not just have frictional contact surface；
(5) the corresponding formation temperature of actual friction condition is heated up to constant temperature fluid bath, and keeps whole experiment process temperature
It is constant；
(6) correction pulling force sensor (precision ± 0.01N), adjusts voltage, and control rate travel is in (4.0-5.0) mm/
Min scopes.Start software, connect pulling force and displacement transducer, click on software interface data record button.Electric motor starting is opened to open
Close, start friction coefficient measurement experiment；
(7) stop experiment when upper friction plate slides into loss circulation material plate right margin, preserve data.According to the friction for obtaining
Power (Ff) data, coefficient of friction is calculated using formula (1).Every group of experiment in triplicate, takes the coefficient of friction that three experiments are obtained
Average value.
In formula, μf- loss circulation material coefficient of friction, dimensionless；
FfThe value of thrust of-sensor record, i.e. frictional force, N；
WN- loss circulation material friction version quality, Kg.
Drilling leakage blockage material friction coefficient measuring device includes：Friction module, power plant module, control module and data acquisition
Module.
(1) friction module.Friction module includes constant temperature fluid bath, support, coheres flat board, counterweight, 5 portions of resistive heater
Part.Constant temperature fluid bath is made up of corrosion resistant stainless steel material, can contain water base/oil base drilling fluid, stratum water, acid solution, alkali lye
Formation fluid environment under actual friction condition is simulated Deng fluid, containing liquid measure can voluntarily adjust as needed.Install liquid bath bottom
There is resistive heater, formation temperature under actual friction condition is simulated by controlling fluid temperature (F.T.) in liquid bath, temperature regulating range is
Normal temperature~120 DEG C.Support is welded on constant temperature fluid bath bottom, and the stainless steel flat plate of loss circulation material is cohered for fixation, and it highly may be used
Adjusted by fastening bolt.Counterweight is used for normal force of the adjustment effect on rubbing surface, and quality is optional.
(2) power plant module.Power plant module is main by towing bracket, drive link, linear motion guide and synchronous direct current generator
Composition.
Friction module is connected by towing bracket, and towing bracket is located on linear motion guide, and by drive link with it is dynamic
Force system is connected.Linear motion guide is used to constrain the movement locus of towing bracket so that the pulling force that power plant module is provided keeps
On same level straight line.Drive link one end and motor connection, the other end are connected by screw thread with towing bracket, on towing bracket
End is connected by finer wire with loss circulation material friction plate, and lower end is connected with displacement transducer and velocity sensor.Drive link is protected
Card towing bracket and upper friction plate uniform motion, when motor outputting torsion, drive link drives traction branch by its thread surface
Frame drives upper friction plate to do linear uniform motion along linear motion guide.Synchronous motor is used for the power of offer device, and voltage is adjusted
Adjusting range is 0~30V.
(3) control module.Control module is by sensor, power-supply controller of electric, voltage regulating device, startup/reset control dress
Put composition.Sensor includes pulling force sensor, displacement transducer and velocity sensor.Pulling force sensor is used to monitor experimentation
Frictional force between middle loss circulation material friction plate；Displacement transducer is used to monitor the displacement of friction plate；Velocity sensor is used for
The translational speed of friction plate in monitoring.Voltage regulating device and startup/repositioning control device are used to control synchronous motor to be input into electricity
Pressure, to realize the control to synchronous motor rotating speed, control handle includes two groups of coarse adjustment and fine tuning, is capable of achieving the accurate of output voltage
Regulation and control, control accuracy is up to 0.1V.Reset and control the direction of motion of major control towing bracket, that is, realize that towing bracket resets,
To carry out next group of experiment again.
(4) data acquisition module.Data acquisition module is made up of data logging software and computer.Data logging software is pacified
In sub computers, the parameters such as during sample motion, displacement, speed, temperature, time can be simultaneously monitored, and can give birth to
Into intuitively data monitoring curve.The functions such as real time data inquiry, graph color conversion, zero, instrumental calibration can also be realized.When
At the end of experiment, clicking on save button can realize that initial data txt forms are achieved, so as to next step data processing.
The drilling leakage blockage material friction coefficient measuring device the key technical indexes is：1. operating temperature：Normal temperature~120 DEG C；
2. brake pad quality：10~100g；3. linear motion guide range：200mm；4. synchronous motor voltage and rotating speed：DC6~
30V、100r/min；5. leading screw torsion：1.5Kg/cm；6. sliding friction block pace：0-20cm/min continuously adjustabes；7. count
According to collection：Synchronous acquisition pulling force, displacement, time；8. constant temperature fluid bath：200mm long, 100mm wide, 80mm high；9. pulling force sensor：
Range：0~2000g, sensitivity：0.8 ± 0.1, composition error：0.05%FS.
Claims (2)
1. the drilling leakage blockage material friction coefficient measuring method is comprised the following steps：
(1) loss circulation material of test will be needed to be put into thermostatic drying chamber, it is standby after dried process；
(2) upper and lower two loss circulation material friction plates are prepared.The loss circulation material after dried process is uniformly bonded at using adhesive flat
On plate, it is ensured that loss circulation material individual layer lays, and the loss circulation material friction plate that will be glued is placed on clean glass plate and gently presses to ensure
Surfacing.Ensure that adhesive will not be seeped into particle surface, loss circulation material mantle friction property is not influenceed；
(3) it is held within after lower friction plate is prepared on the support in constant temperature fluid bath, holding is stained with loss circulation material one and faces
On.Upper friction plate lies in lower friction plate high order end after weighing (weight is designated as WN), counterweight puts down the centre bit on upper friction plate gently
Put and fix, upper friction plate is connected with towing bracket；
(4) to corresponding downhole fluid (stratum water, drilling fluid, completion fluid when actual friction condition is slowly injected into constant temperature fluid bath
Deng), it is ensured that liquid level did not just have frictional contact surface.The corresponding formation temperature of actual friction condition is heated up to constant temperature fluid bath and protect
Hold constant；
(5) correction pulling force sensor (precision ± 0.01N), adjusts voltage, and friction plate rate travel is in (4.0-5.0) in control
mm/min.Stop experiment when upper friction plate slides into lower friction plate right margin, preserve data.According to the frictional force (F for obtainingf)
Data, coefficient of friction is calculated using formula (1).Every group of experiment in triplicate, takes the coefficient of friction average value that three experiments are obtained.
2. drilling leakage blockage material friction coefficient measuring device principle is as follows：
The device is made up of friction module, power plant module, control module and data acquisition module.
Friction module mainly includes constant temperature fluid bath, support, coheres flat board, counterweight, 5 parts of resistive heater.Constant temperature fluid bath by
Corrosion resistant stainless steel material is made, and can contain the fluids such as drilling fluid, stratum water, acid solution, alkali lye to simulate actual fricting strip
Formation fluid environment under part, containing liquid measure can voluntarily adjust as needed.Liquid bath bottom is provided with resistive heater, by controlling liquid
Fluid temperature (F.T.) simulates formation temperature under actual friction condition in groove, and temperature regulating range is normal temperature~150 DEG C.Support is welded on perseverance
Warm liquid bath bottom, level is used for the stainless steel flat plate that loss circulation material is cohered in fixation, and it can highly be adjusted by fastening bolt.Counterweight
Normal force for adjustment effect on rubbing surface, quality is optional.
Friction module is connected by towing bracket, and towing bracket is located on line slideway, and by drive link and dynamical system phase
Even.Linear motion guide is used to constrain the movement locus of towing bracket so that the pulling force that power plant module is provided is maintained at same water
On flat line.Drive link ensures towing bracket and upper friction plate uniform motion, it is ensured that the repeatability of friction coefficient measurement result
And comparability.Pulling force, displacement and velocity sensor Real-time Collection experimental data in experimentation on towing bracket, use
Calculated in loss circulation material coefficient of friction.
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Cited By (12)
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| CN107655824A (en) * | 2017-11-01 | 2018-02-02 | 哈尔滨理工大学 | A kind of method for estimating flexible pin puncture soft tissue coefficient of friction |
| CN107884335A (en) * | 2017-09-29 | 2018-04-06 | 西南石油大学 | A kind of fracture-type reservoir loss circulation material blocks the decision method with failure cause |
| CN109557024A (en) * | 2018-12-04 | 2019-04-02 | 河南工业大学 | The detection device of frictional force between a kind of detection cereal-granules |
| CN110069878A (en) * | 2019-04-29 | 2019-07-30 | 西南石油大学 | A kind of drilling completion plugging material Quantitative scoring preferred method |
| CN110082289A (en) * | 2019-05-13 | 2019-08-02 | 西南石油大学 | A kind of sillar friction coefficient measurement method and device based on fluid environment |
| CN110398438A (en) * | 2019-09-05 | 2019-11-01 | 中国烟草总公司郑州烟草研究院 | A kind of method and detection device for evaluating paper-making method reproduced tobacco leaf tobacco powder adhesion |
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| CN111610144A (en) * | 2020-05-27 | 2020-09-01 | 交通运输部天津水运工程科学研究所 | Gravity type structural stability test bottom friction coefficient calibration system |
| CN111929234A (en) * | 2020-09-24 | 2020-11-13 | 成都理工大学 | Device for measuring friction coefficient of drilling plugging material |
| CN113358555A (en) * | 2021-05-19 | 2021-09-07 | 南京航空航天大学 | Test device and test method for measuring friction coefficient of sealing ring under different compression ratios |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201628656U (en) * | 2010-02-25 | 2010-11-10 | 葛洲坝集团试验检测有限公司 | Two-sided friction device used for shear elasticity modulus of rubber support |
| CN105891011A (en) * | 2015-06-24 | 2016-08-24 | 中国石油大学(北京) | Device for measuring friction strength of rock under action of different fluids |
| CN106226183A (en) * | 2016-08-29 | 2016-12-14 | 浙江工业大学 | Biological coating frictional wear test device |
-
2017
- 2017-01-12 CN CN201710028335.8A patent/CN106769843B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201628656U (en) * | 2010-02-25 | 2010-11-10 | 葛洲坝集团试验检测有限公司 | Two-sided friction device used for shear elasticity modulus of rubber support |
| CN105891011A (en) * | 2015-06-24 | 2016-08-24 | 中国石油大学(北京) | Device for measuring friction strength of rock under action of different fluids |
| CN106226183A (en) * | 2016-08-29 | 2016-12-14 | 浙江工业大学 | Biological coating frictional wear test device |
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| CN107884335A (en) * | 2017-09-29 | 2018-04-06 | 西南石油大学 | A kind of fracture-type reservoir loss circulation material blocks the decision method with failure cause |
| CN107884335B (en) * | 2017-09-29 | 2019-10-18 | 西南石油大学 | A kind of determination method of the fracture-type reservoir plugging material closure with failure cause |
| CN107655824A (en) * | 2017-11-01 | 2018-02-02 | 哈尔滨理工大学 | A kind of method for estimating flexible pin puncture soft tissue coefficient of friction |
| CN109557024A (en) * | 2018-12-04 | 2019-04-02 | 河南工业大学 | The detection device of frictional force between a kind of detection cereal-granules |
| WO2020220745A1 (en) * | 2019-04-29 | 2020-11-05 | 西南石油大学 | Quantitative grading method for lost-circulation material selection optimization in well completion of well drilling |
| CN110069878A (en) * | 2019-04-29 | 2019-07-30 | 西南石油大学 | A kind of drilling completion plugging material Quantitative scoring preferred method |
| CN110069878B (en) * | 2019-04-29 | 2019-12-20 | 西南石油大学 | Quantitative scoring and optimizing method for well drilling completion plugging material |
| CN110082289A (en) * | 2019-05-13 | 2019-08-02 | 西南石油大学 | A kind of sillar friction coefficient measurement method and device based on fluid environment |
| CN110398438A (en) * | 2019-09-05 | 2019-11-01 | 中国烟草总公司郑州烟草研究院 | A kind of method and detection device for evaluating paper-making method reproduced tobacco leaf tobacco powder adhesion |
| CN111337423A (en) * | 2020-02-25 | 2020-06-26 | 中国石油天然气股份有限公司 | Method and device for measuring friction characteristic of proppant |
| CN111610144A (en) * | 2020-05-27 | 2020-09-01 | 交通运输部天津水运工程科学研究所 | Gravity type structural stability test bottom friction coefficient calibration system |
| CN111610144B (en) * | 2020-05-27 | 2023-02-14 | 交通运输部天津水运工程科学研究所 | Gravity type structural stability test bottom friction coefficient calibration system |
| CN111929234A (en) * | 2020-09-24 | 2020-11-13 | 成都理工大学 | Device for measuring friction coefficient of drilling plugging material |
| CN111929234B (en) * | 2020-09-24 | 2020-12-15 | 成都理工大学 | Device for measuring friction coefficient of drilling plugging material |
| CN113358555A (en) * | 2021-05-19 | 2021-09-07 | 南京航空航天大学 | Test device and test method for measuring friction coefficient of sealing ring under different compression ratios |
| CN113358555B (en) * | 2021-05-19 | 2023-02-10 | 南京航空航天大学 | Test device and test method for measuring friction coefficient of sealing ring under different compression ratios |
| CN115171488A (en) * | 2022-09-08 | 2022-10-11 | 哈尔滨工程大学 | Uniform force application device for physical mechanics experiment |
| CN116297162A (en) * | 2023-05-17 | 2023-06-23 | 成都理工大学 | Device and method for testing friction coefficient of discrete particle plugging material |
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