CN105758789A - Rock-metal complex motion friction experiment device - Google Patents
Rock-metal complex motion friction experiment device Download PDFInfo
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- CN105758789A CN105758789A CN201610129296.6A CN201610129296A CN105758789A CN 105758789 A CN105758789 A CN 105758789A CN 201610129296 A CN201610129296 A CN 201610129296A CN 105758789 A CN105758789 A CN 105758789A
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- rock
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- directional ball
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
Abstract
The invention relates to a rock-metal complex motion friction experiment device.The device comprises a workbench (1), a positive pressure applying mechanism (2), a slide mechanism (3), a rock clamping mechanism (4) and a vibration mechanism (5).The positive pressure applying mechanism (2) is fixed to an upper side of the workbench (1); the slide mechanism (3) is vertically mounted to the upper middle of the workbench (1); the rock clamping mechanism (4) is arranged on the front side of the slide mechanism (3); an output end of the vibration mechanism (5) is fixedly connected with the bottom of a supporting frame (24).The rock-metal complex motion friction experiment device has the advantages that quantitative control and monitoring of parameters including vibration, contact force, sliding speed, friction and the like can be realized to provide means for quantitative evaluation of influences rules of vibration parameters on frictional resistance of sliding and vibration sliding after contact of a drill stem and a well wall, experimental requirements of relative sliding, relative vibration and simultaneous sliding and vibration of rock and metal can be met, and structural simplicity and convenience in use are realized.
Description
Technical field
The present invention relates to the experimental provision of petroleum works field drill string and wall friction, particularly a kind of rock-metal composite friction of motion experimental provision.
Background technology
In horizontal well, extended reach well drilling process, drill string contacts with the borehole wall and relative motion can produce bigger frictional resistance.This frictional resistance can cause series of complex engineering problem: torque load increases and causes drill string limitation and rig load problem, sliding-frictional resistance cause Tubing Buckling, under enter difficulty and being difficult to and apply and the pressure of the drill problem etc..Engineering circles, in order to alleviate the impact of this frictional resistance, has been carried out the engineering practice of drillstring vibrations drag reduction and has obtained certain effect.Drag reduction amount for quantitative assessment drillstring vibrations, the vibration parameters affecting laws to drag reduction and the quantitative analysis of vibration position, need invention one badly and can simulate the experimental provision of non-linear friction model between drilling tool (metal) and the borehole wall (rock), drilling tool and the slip of the borehole wall, slip+vibration friction can be evaluated and study mechanism by this device, and the dynamic friction of similar operating mode can be carried out the work such as Model Matching and parameter identification.
Summary of the invention
It is an object of the invention to overcome the shortcoming of prior art, a kind of rock-metal composite friction of motion experimental provision is provided, on this device, the parameter such as vibration, contact force, sliding speed, frictional force all can fixing quantity and monitoring, slide after contacting with the borehole wall for quantitative assessment drill string, vibrate the frictional resistance of slip, and vibration parameters provides means to the affecting laws of drag reduction.
nullThe purpose of the present invention is achieved through the following technical solutions: a kind of rock-metal composite friction of motion experimental provision，Including workbench、Normal pressure applying mechanism、Slide mechanism、Rock clamping device and vibrating mechanism，Described normal pressure applying mechanism is fixed at the upper side of workbench，Normal pressure applying mechanism includes bearing A、Rotary shaft rack A、Tension-compression sensor A、Bearing B and multi-directional ball，Bearing A is fixing on the table，One end of rotary shaft rack A is hingedly mounted on bearing A by rotating shaft A，The other end is fastenedly connected by one end of positive and negative bolt with tension-compression sensor A，The other end of tension-compression sensor A is connected with one end of multi-directional ball bearing，The other end of multi-directional ball bearing is installed with multiple multi-directional ball，Bearing B is fixing on the table，It is hinged and connected by one end of rotating shaft B with rotary shaft rack B on bearing B，The other end of rotary shaft rack B is hinged and connected with the middle part of multi-directional ball bearing；Described slide mechanism vertically-mounted workbench upper center, slide mechanism includes carriage saddle, slide rail, slide unit, motor, oscillating bearing, tension-compression sensor B and metal specimen, carriage saddle is perpendicular to workbench, two slide rails being parallel to each other vertically are installed on carriage saddle, slide unit is slidably matched with slide rail, the middle part of carriage saddle is vertically-mounted leading screw, the upper end of leading screw is connected with motor, the middle part threaded portion of leading screw is connected with slide unit, slide unit is connected with oscillating bearing by connector, oscillating bearing is in transmission connection with one end of tension-compression sensor B, the other end of tension-compression sensor B is connected with metal specimen, described universal top dome is pressed on the side of metal specimen；Described rock clamping device is arranged at the front side of slide mechanism, rock clamping device includes bracing frame and locking member, the side of bracing frame has the groove for accommodating rock sample, and the opening direction of groove is towards metal specimen, the locking member being arranged above for fixing rock sample of groove；Described vibrating mechanism is arranged on the bottom of workbench, and the output of vibrating mechanism is connected with the bottom driving of bracing frame.
Described multi-directional ball has multiple.
Described multi-directional ball bearing is perpendicular to the surface of metal specimen, and the axis of multi-directional ball bearing aligns with rock sample.
The invention have the advantages that
1, the present invention has filled up the existing blank without this type of experimental provision, it is possible to realize the experiment demand that rock relative with metal slides, Relative Vibration and slip+vibration are carried out simultaneously, simple in construction, easy to use.
2, on this device, the parameter such as vibration, contact force, sliding speed, frictional force all can fixing quantity and monitoring, slide after contacting with the borehole wall for quantitative assessment drill string, vibrate the frictional resistance of slip, vibration parameters provides means to the affecting laws of drag reduction, for providing foundation in actual application.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention；
Fig. 2 is the partial structurtes schematic diagram of the present invention；
In figure: 1-workbench, 2-normal pressure applying mechanism, 3-slide mechanism, 4-rock clamping device, 5-vibrating mechanism, 6-bearing A, 7-rotary shaft rack A, the 8-positive and negative bolt of rotating shaft A, 9-, 10-tension-compression sensor A, 11-multi-directional ball bearing, 12-bearing B, 13-rotating shaft B, 14-multi-directional ball, 15-carriage saddle, 16-slide rail, 17-slide unit, 18-motor, 19-leading screw, 20-oscillating bearing, 21-connector, 22-tension-compression sensor B, 23-metal specimen, 24-bracing frame, 25-locking member, 26-rock sample.
Detailed description of the invention
The present invention will be further described below in conjunction with the accompanying drawings, but protection scope of the present invention is not limited to the following stated.
nullAs depicted in figs. 1 and 2，A kind of rock-metal composite friction of motion experimental provision，Including workbench 1、Normal pressure applying mechanism 2、Slide mechanism 3、Rock clamping device 4 and vibrating mechanism 5，Described normal pressure applying mechanism 2 is fixed at the upper side of workbench 1，Normal pressure applying mechanism 2 includes bearing A6、Rotary shaft rack A7、Tension-compression sensor A10、Bearing B12 and multi-directional ball 14，Bearing A6 is fixed on workbench 1，One end of rotary shaft rack A7 is hingedly mounted on bearing A6 by rotating shaft A8，The other end is fastenedly connected by one end of positive and negative bolt 9 with tension-compression sensor A10，The other end of tension-compression sensor A10 is connected with one end of multi-directional ball bearing 11，The other end of multi-directional ball bearing 11 is installed with multiple multi-directional ball 14，Bearing B12 is fixed on workbench 1，It is hinged and connected by one end of rotating shaft B13 with rotary shaft rack B on bearing B12，The other end of rotary shaft rack B is hinged and connected with the middle part of multi-directional ball bearing 11；nullDescribed slide mechanism 3 vertically-mounted workbench 1 upper center，Slide mechanism 3 includes carriage saddle 15、Slide rail 16、Slide unit 17、Motor 18、Oscillating bearing 19、Tension-compression sensor B22 and metal specimen 23，Carriage saddle 15 is perpendicular to workbench 1，Two slide rails being parallel to each other 16 are vertically installed on carriage saddle 15，Slide unit 17 is slidably matched with slide rail 16，The middle part of carriage saddle 15 is vertically-mounted leading screw 19，The upper end of leading screw 19 is connected with motor 18，The middle part threaded portion of leading screw 19 is connected with slide unit 17，Slide unit 17 is connected with oscillating bearing 20 by connector 21，Oscillating bearing 20 is in transmission connection with one end of tension-compression sensor B22，The other end of tension-compression sensor B22 is connected with metal specimen 23，Described multi-directional ball 14 top is pressed on the side of metal specimen 23；Described rock clamping device 4 is arranged at the front side of slide mechanism 3, rock clamping device 4 includes bracing frame 24 and locking member 25, the side of bracing frame 24 has the groove for accommodating rock sample 26, the opening direction of groove is towards metal specimen 23, the locking member 25 being arranged above for fixing rock sample 26 of groove；Described vibrating mechanism 5 is arranged on the bottom of workbench 1, and the output of vibrating mechanism 5 is connected with the bottom driving of bracing frame 24.
In the present embodiment, described multi-directional ball 14 has multiple, and as preferably, multi-directional ball 14 is two or four.
As preferably, described multi-directional ball bearing 11 is perpendicular to the surface of metal specimen 23, and the axis of multi-directional ball bearing 11 aligns with rock sample 26.
The course of work of the present invention is as follows: before experiment, rock sample 26 is locked on bracing frame 24 by locking member 25, turn positive and negative bolt 9, multi-directional ball 14 is made to contact with metal specimen 23, continue to turn positive and negative bolt 9, making metal specimen 23 be pressed on rock sample 26, the normal pressure shown in tension-compression sensor A10 reaches required value simultaneously, and laboratory can be divided into three kinds of situations:
(1), relatively slide, i.e. have only to that rock sample 26 is relative with metal specimen 23 to slide, leading screw 19 is driven to rotate by motor 18, so that slide unit 11 in the vertical direction moves, making that rock sample 26 is relative with metal specimen 23 to slide, metal specimen 23 can be calculated according to the surveyed data of tension-compression sensor B22 by the frictional force of rock sample 26.
(2), Relative Vibration, i.e. have only to rock sample 26 and metal specimen 23 Relative Vibration, control vibrating mechanism 5 to vibrate, drive rock sample 26 can be calculated according to the surveyed data of tension-compression sensor B22 by the frictional force of rock sample 26 relative to 23 oscillating movements of metal specimen, metal specimen 23.
(3), relative slip+Relative Vibration, i.e. rock sample 26 does relative slip and Relative Vibration with metal specimen 23 simultaneously, leading screw 19 is driven to rotate by motor 18, so that slide unit 11 moves, make that rock sample 26 is relative with metal specimen 23 to slide, control vibrating mechanism 5 to vibrate simultaneously, drive rock sample 26 can be calculated according to the surveyed data of tension-compression sensor B22 by the frictional force of rock sample 26 relative to 23 oscillating movements of metal specimen, metal specimen 23.
Claims (3)
1. rock-metal composite friction of motion experimental provision, it is characterised in that: include workbench (1), normal pressure applying mechanism (2), slide mechanism (3), rock clamping device (4) and vibrating mechanism (5),
nullDescribed normal pressure applying mechanism (2) is fixed on workbench (1) upper side，Normal pressure applying mechanism (2) includes bearing A(6)、Rotary shaft rack A(7)、Tension-compression sensor A(10)、Bearing B(12) and multi-directional ball (14)，Bearing A(6) it is fixed on workbench (1)，Rotary shaft rack A(7) one end by rotating shaft A(8) be hingedly mounted on bearing A(6) on，The other end is by positive and negative bolt (9) and tension-compression sensor A(10) one end be fastenedly connected，Tension-compression sensor A(10) the other end be connected with one end of multi-directional ball bearing (11)，The other end of multi-directional ball bearing (11) is installed with multiple multi-directional ball (14)，Bearing B(12) it is fixed on workbench (1)，Bearing B(12) on by rotating shaft B(13) be hinged and connected with one end of rotary shaft rack B，The other end of rotary shaft rack B is hinged and connected with the middle part of multi-directional ball bearing (11)；
nullDescribed slide mechanism (3) vertically-mounted workbench (1) upper center，Slide mechanism (3) includes carriage saddle (15)、Slide rail (16)、Slide unit (17)、Motor (18)、Oscillating bearing (19)、Tension-compression sensor B(22) and metal specimen (23)，Carriage saddle (15) is perpendicular to workbench (1)，Two slide rails being parallel to each other (16) are vertically installed on carriage saddle (15)，Slide unit (17) is slidably matched with slide rail (16)，The middle part of carriage saddle (15) is vertically-mounted leading screw (19)，The upper end of leading screw (19) is connected with motor (18)，The middle part threaded portion of leading screw (19) is connected with slide unit (17)，Slide unit (17) is connected with oscillating bearing (20) by connector (21)，Oscillating bearing (20) and tension-compression sensor B(22) one end be in transmission connection，Tension-compression sensor B(22) the other end be connected with metal specimen (23)，Described multi-directional ball (14) top is pressed on the side of metal specimen (23)；
Described rock clamping device (4) is arranged at the front side of slide mechanism (3), rock clamping device (4) includes bracing frame (24) and locking member (25), the side of bracing frame (24) has the groove for accommodating rock sample (26), the opening direction of groove is towards metal specimen (23), the locking member (25) being arranged above for fixing rock sample (26) of groove；
Described vibrating mechanism (5) is arranged on the bottom of workbench (1), and the output of vibrating mechanism (5) is connected with the bottom driving of bracing frame (24).
A kind of rock-metal composite friction of motion experimental provision the most according to claim 1, it is characterised in that: described multi-directional ball (14) has multiple.
A kind of rock-metal composite friction of motion experimental provision the most according to claim 1, it is characterised in that: described multi-directional ball bearing (11) is perpendicular to the surface of metal specimen (23), and the axis of multi-directional ball bearing (11) aligns with rock sample (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610129296.6A CN105758789B (en) | 2016-03-08 | 2016-03-08 | A kind of rock-metal composite friction of motion experimental provision |
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| CN201610129296.6A CN105758789B (en) | 2016-03-08 | 2016-03-08 | A kind of rock-metal composite friction of motion experimental provision |
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| CN105758789A true CN105758789A (en) | 2016-07-13 |
| CN105758789B CN105758789B (en) | 2019-04-23 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107014747A (en) * | 2017-05-26 | 2017-08-04 | 清华大学 | A kind of rock mass discontinuity dynamic friction experimental system based on shake table |
| CN108801903A (en) * | 2018-06-14 | 2018-11-13 | 东华大学 | A kind of device and test method for detecting the opposite sliding of crossbeam pallet cargo |
| CN112014093A (en) * | 2020-09-03 | 2020-12-01 | 西南石油大学 | System and method for testing friction block of drilling robot |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107014747A (en) * | 2017-05-26 | 2017-08-04 | 清华大学 | A kind of rock mass discontinuity dynamic friction experimental system based on shake table |
| CN107014747B (en) * | 2017-05-26 | 2019-09-27 | 清华大学 | A kind of rock mass discontinuity dynamic friction experimental system based on shake table |
| CN108801903A (en) * | 2018-06-14 | 2018-11-13 | 东华大学 | A kind of device and test method for detecting the opposite sliding of crossbeam pallet cargo |
| CN108801903B (en) * | 2018-06-14 | 2020-08-11 | 东华大学 | Device for detecting relative sliding of goods on cross beam tray and test method |
| CN112014093A (en) * | 2020-09-03 | 2020-12-01 | 西南石油大学 | System and method for testing friction block of drilling robot |
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| CN105758789B (en) | 2019-04-23 |
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