CN103630348A - Turbine drilling process experimental device - Google Patents
Turbine drilling process experimental device Download PDFInfo
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- CN103630348A CN103630348A CN201310629298.8A CN201310629298A CN103630348A CN 103630348 A CN103630348 A CN 103630348A CN 201310629298 A CN201310629298 A CN 201310629298A CN 103630348 A CN103630348 A CN 103630348A
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Abstract
The invention provides a turbine drilling process experimental device, which comprises a supporting rack, a rotation loading device, a turbodrill and a mud circulating system, wherein the mud circulating system comprises a rock box, a mud pit and a mud pump; the rock box is arranged below the turbodrill; the turbodrill is provided with a centralizing mechanism; an input pipeline of the mud pump is communicated with the mud pit; the downside of the rock box is provided with a water outlet; the water outlet is communicated with the mud pit; an output pipeline of the mud pump is communicated with the turbodrill; the power output end of the rotation loading device is connected with the turbodrill. The turbine drilling process experimental device adopts a vertical structure, not only can be used as a platform for testing turbodrill performance and turbine drilling technology, but also can be used as a platform for testing an in-hole drilling tool which takes hydraulic power as a power source; during actual measurement, the reciprocating-type high-pressure mud pump is adopted instead of a rotary water pump for directly pumping mud as a power source; in comparison with an existing electric dynamometer or magnetic powder brake type measuring equipment, the turbine drilling process experimental device has the advantages of high pressure and sufficient torque, and is closer to actual working conditions.
Description
Technical field
The present invention relates to geological exploration field, relate in particular to a kind of relate to a kind of in order to measure the turbine drilling technology experimental provision of drilling tool various performance parameters in actual drilling process.
Background technology
Turbodrill is that Earth is surveyed, ultra deep well is drilled indispensable key equipment, at present, at petroleum drilling and geology ultra deep well probing field, is widely applied.Turbine drilling technique experiment table is to carry out Turbodrilling Properties test, and the drilling technology that mates with drill bit of the turbodrill key equipment of testing.At present, test to turbodrill, conventionally adopt rotary and centrifugal pump to drive turbodrill rotation, because the flow of centrifugal pump is large, pressure reduction is little, therefore, cannot bore the mode that the pressure of the drill loading on drill bit produces moment of torsion naturally by reality and test, but adopt the moment of torsion in magnetic powder brake or electric dynamometer analogic drilling, therefore, can only carry out turbodrill testing research, and cannot carry out corresponding drilling technology research.
Summary of the invention
The deficiency existing for prior art, the object of the present invention is to provide a kind of in order to measure the turbine drilling technology experimental provision of drilling tool various performance parameters in actual drilling process.
For achieving the above object, turbine drilling technology experimental provision provided by the invention, comprise support stand, rotation charger, turbodrill and mud circulating system, described mud circulating system comprises rock case, suction pit and steam piano, described rock case is arranged on the below of described turbodrill, on described turbodrill, be provided with righting mechanism, the input channel of described steam piano is communicated with described suction pit, described rock case downside has water delivering orifice, described water delivering orifice is communicated with described suction pit, the output channel of described steam piano is communicated with described turbodrill, the clutch end of described rotation charger is connected with described turbodrill.
Preferably, in described rock case, be cube shaped, at described rock case inner bottom part, be provided with a plurality of slotted eyes, also comprise rock fixed bar, described rock fixed bar one end has oval head, and the described slotted eye that described ellipse inserts described rock case inner bottom part setting rotates rear and described slotted eye clamping; The other end is a connector being threaded with it, on described connector, has through hole, over against two described rock fixed bar connectors on through hole in insert a depression bar.
Preferably, rotation charger comprises oil motor, torque sensor, speed reduction unit, hydraulic cylinder piston mount pad, bearing mounting base, bearing, main shaft, two hydraulic cylinders, described oil motor is arranged on the input end of described speed reduction unit, described torque sensor is arranged between described speed reduction unit and described oil motor, the output terminal bottom of described speed reduction unit connects described main shaft, described bearing is arranged on described main shaft by bearing mounting base, described bearing mounting base is arranged on described hydraulic cylinder piston mount pad, the cylinder body of two described hydraulic cylinders is arranged on the below of described support stand, described main shaft connects turbodrill, stretch out the described spindle floating setting of described speed reduction unit output terminal top.
Preferably, described rotation charger also comprises hydraulic control system, and described hydraulic control system comprises
Hydraulic power source (hydraulic reservoir and corresponding power source control system);
Hydraulic control circuit (referring to hydrostatic control valve member, pipeline, catanator etc.): in order to control the hydraulic cylinder reversal valve of hydraulic cylinder direction of feed, described hydraulic cylinder reversal valve is three position four-way directional control valve, and oil-feed valve port is communicated with described hydraulic power source;
In order to control the oil motor reversal valve of oil motor sense of rotation and rotational speed, described oil motor reversal valve is three position four-way directional control valve, and oil-feed valve port is communicated with described hydraulic power source;
In order to control the overflow reduction valve of hydraulic cylinder centripetal force, comprise input end, output terminal and drain tap, described input end is communicated with an output terminal of described hydraulic cylinder reversal valve, and described drain tap is communicated with described hydraulic reservoir;
In order to prevent that hydraulic cylinder from falling down suddenly and keeping hydraulic system hydraulically balanced valve stably, comprise two input ports and two delivery outlets, another output terminal of one of them input port and described hydraulicdirectional control valve is communicated with, the output terminal of another input port and described overflow reduction valve is communicated with, and two output terminals are communicated with described oil motor respectively.
Preferably, described mud circulating system also comprises
Shower nozzle, is arranged in described suction pit, in order to draw impurity screening in the process of mud or clear water in suction pit;
Suction hose, two ends are connected with shower nozzle with the input end of steam piano respectively;
Water swivel, conducting turbodrill and steam piano inject mud or clear water in turbodrill;
Pressure pipe, two ends are connected with water swivel with mud delivery side of pump respectively;
Pressure unit, is arranged on pressure pipe, in order to show that pressure changes and hydraulic pressure information is converted to electric signal;
Flowmeter, is arranged on suction hose, in order to monitor the flow information of steam piano;
Return pipe, on described return pipe, be provided with safety valve, described return pipe is communicated with pressure pipe and suction pit, described safety valve prevents from when pressure pipe from stopping up having an accident, when described pressure pipe internal pressure surpasses opening pressure of safety valve, safety valve is opened automatically, and gush out the under pressure spout hole of safety valve of mud or clear water, flows back to pond by return pipe.
Relief tube, is provided with back-water valve (BWV) on described relief tube, and described relief tube is communicated with pressure pipe and return pipe, and described back-water valve (BWV) is discharged mud or the clear water that pumping hole has pressure when stopping steam piano and used; Or whether suct washing fluid after being used for checking unlatching steam piano.
Run-down pipe, is provided with surplus valve on described run-down pipe, and described run-down pipe is communicated with described pressure pipe and suction pit, and described surplus valve is in order to regulate the flow of steam piano.
Preferably, described support stand comprises joist steel, a plurality of transverse stiffener ribs, a plurality of oblique reinforcements, bracing frame base plate, pedestal and a plurality of fixed support, a plurality of described transverse stiffener ribs horizontal interval is welded in the groove of described joist steel, described oblique reinforcement be take transverse stiffener rib and as line of symmetry tilts, is welded on described transverse stiffener rib both sides, a plurality of described fixed supports are disposed on the rear portion at described joist steel, described back up pad base plate is welded on described joist steel bottom, on described support baseboard, have semicircle orifice, two described hydraulic cylinders are arranged on support frame as described above base plate, described pedestal is arranged on the bottom of support frame as described above base plate.
Preferably, described pedestal has a cavity, and described cavity is welded by square steel, in the side of described pedestal, is welded with reinforcement.
Turbine drilling technology experimental provision provided by the invention adopts vertical structure, not only can be used as Turbodrilling Properties test, TURBODRILLING TECHNIQUE WITH TREMENDOUS TECHNICAL test platform, can also take the test platform of drilling tool under the hole that hydro powered is power source as helicoid hydraulic motor, blade drilling tool, vibratory tool etc.; During actual measurement, adopt steam piano directly to pump into mud as power source, than the measuring equipment of existing electric dynamometer, magnetic powder brake formula, there is the advantage that moment of torsion is sufficient, more press close to real working condition.
Accompanying drawing explanation
Fig. 1 is the structural representation of turbine drilling technology experimental provision of the present invention;
Fig. 2 is the structural representation of the rock case of turbine drilling technology experimental provision of the present invention;
Fig. 3 is the structural representation of the rotation charger of turbine drilling technology experimental provision of the present invention;
Fig. 4 is the principle schematic of the hydraulic control system of turbine drilling technology experimental provision of the present invention;
Fig. 5 is the structural representation of the mud circulating system of turbine drilling technology experimental provision of the present invention;
Fig. 6 is the structural representation of the support stand of turbine drilling technology experimental provision of the present invention;
Fig. 7 is the structural representation of the rock fixed bar of turbine drilling technology experimental provision of the present invention;
Fig. 8 is the rock case inner bottom part structural representation of turbine drilling technology experimental provision of the present invention;
Fig. 9 is the interior local structure for amplifying schematic diagram of the circle of Fig. 3.
In figure, 1-rock case, 2-suction pit, 3-steam piano, 4-turbodrill, 5-slotted eye, 6-rock fixed bar, 7-depression bar, 8-connector, 9-oil motor, 10-torque sensor, 11-speed reduction unit, 12-hydraulic cylinder piston mount pad, 13-bearing mounting base, 14-bearing, 15-main shaft, 16-hydraulic cylinder, 17-hydraulic power source, 18-hydraulic reservoir, 19-oil motor reversal valve, 20-overflow reduction valve, 21-hydraulically balanced valve, 22-hydraulic cylinder reversal valve, 23-shower nozzle, 24-suction hose, 25-water swivel, 26-pressure pipe, 27-pressure unit, 28-flowmeter, 29-return pipe, 30-relief tube, 31-run-down pipe, 32-surplus valve, 33-joist steel, 34-transverse stiffener rib, the oblique reinforcement of 35-, 36-bracing frame base plate, 37-pedestal, 38-fixed support, 39-righting mechanism, 40-backing plate, 41-safety valve, 42-back-water valve (BWV).
Embodiment
Below in conjunction with accompanying drawing, the present invention is described further:
Please refer to Fig. 1, Fig. 1 is the structural representation of turbine drilling technology experimental provision of the present invention.
Turbine drilling technology experimental provision, comprise support stand, rotation charger, turbodrill 4 and mud circulating system, described mud circulating system comprises rock case 1, suction pit 2 and steam piano 3, described rock case 1 is arranged on the below of described turbodrill 4, on described turbodrill 4, be provided with righting mechanism 39, the input channel of described steam piano 3 is communicated with described suction pit 2, described rock case 1 downside has water delivering orifice, described water delivering orifice is communicated with described suction pit 2, the output channel of described steam piano 3 is communicated with described turbodrill 4, the clutch end of described rotation charger is connected with described turbodrill 4.
Please refer to Fig. 2, Fig. 7 and Fig. 8, Fig. 2 is the structural representation of the rock case of turbine drilling technology experimental provision of the present invention, Fig. 7 is the structural representation of the rock fixed bar of turbine drilling technology experimental provision of the present invention, and Fig. 8 is the rock case inner bottom part structural representation of turbine drilling technology experimental provision of the present invention.
In described rock case 1, be cube shaped, at described rock case 1 inner bottom part, be provided with a plurality of slotted eyes 5, also comprise rock fixed bar 6, described rock fixed bar 6 one end have oval head, and the described slotted eye 5 that described ellipse inserts described rock case 1 inner bottom part setting rotates rear and described slotted eye 5 clampings; The other end is a connector being threaded with it 8, on described connector 8, has through hole, over against two described rock fixed bar 6 connectors 8 on through hole in insert a depression bar 7.During use, rock is put into rock case 1, rock is due to scrambling, its be placed on rock case 1 can exposed portions serve after interior slotted eye 5, the interior insertion rock of slotted eye 5 fixed bar 6 rotary clamping at rock case 1 inner bottom part, after this root rock fixed bar 6 fixes, rotary connecting joint 8 moves down it, move down into and to a certain degree insert afterwards depression bar 7, at depression bar 7 other ends, by the through hole on connector 8, connect a rock fixed bar 6 again, rotation rock fixed bar 6 shortens its length, foreshortening to depression bar 7 can compress after the oval head of rock fixed bar 6 lower ends being inserted into the interior rotation of slotted eye 5 after rock and be stuck in slotted eye 5, rock case inner bottom part also can be processed a backing plate 40 and place stone, connector 8 has a thread bush, the part being threaded with rock fixed bar 6, on thread bush top, there is a movable head with taper hole, this movable head can rotate freely at thread bush top.
Please refer to Fig. 3 and Fig. 9, Fig. 3 is the structural representation of the rotation charger of turbine drilling technology experimental provision of the present invention, local structure for amplifying schematic diagram in the circle that Fig. 9 is Fig. 3.
Rotation charger comprises oil motor 9, torque sensor 10, speed reduction unit 11, hydraulic cylinder piston mount pad 12, bearing mounting base 13, bearing 14, main shaft 15, two hydraulic cylinders 16, described oil motor 9 is arranged on the input end of described speed reduction unit 11, described torque sensor 10 is arranged between described speed reduction unit 11 and described oil motor 9, the output terminal bottom of described speed reduction unit 11 connects described main shaft 15, described bearing 14 is arranged on described main shaft 15 by bearing mounting base 13, described bearing mounting base 13 is arranged on described hydraulic cylinder piston mount pad 12, the cylinder body of two described hydraulic cylinders 16 is arranged on the below of described support stand, described main shaft 15 connects turbodrill 4, the described main shaft 15 that stretches out described speed reduction unit 11 output terminal tops floats and arranges.Torque sensor 10 is for measuring the reactive torque on main shaft 15, is drill bit on turbodrill 4 or other drilling tools and the rock broken rock moment while interacting.Oil motor 9 becomes large by the rear Speed Reduction of speed reduction unit 11, moment of torsion, the output terminal bottom of speed reduction unit 11 is connected with output main shaft 15, main shaft 15 tops are threaded, with jointing, connect again turbodrill 4 or other hole subdrilling tools, floating in the top of speed reduction unit 11 output terminals, in the situation that oil motor 9 is not exported active moment, can not rotate freely.Turbodrill 4 or other hole subdrilling tool are when creeping into experiment, the valve of controlling oil motor 9 is in meta, oil motor 9 is output torque not, main shaft 15 floats, and can measure the method for drilling tool reactive torque and measure broken rock moment of torsion, and creep into experiment end, twist off rock core, and test while starting to drive drilling tool rotation, oil motor 9 all needs output torque, as active power source, drives drilling tool rotation.
Please refer to Fig. 4, Fig. 4 is the principle schematic of the hydraulic control system of turbine drilling technology experimental provision of the present invention.
Described rotation charger also comprises hydraulic control system, and the effect of hydraulic control system is to drive oil motor 9 and hydraulic cylinder 16, and specific requirement is as follows, and hydraulic system working pressure is 12.5MPa, and awp is in 10MPa; The direction of oil motor 9 can be controlled, and speed of gyration can stepless control; The direction of hydraulic cylinder 16 can be controlled, and centripetal force can accurately be controlled, and the power of lifting process and speed can stepless controls.
Described hydraulic control system comprises
In order to control the hydraulic cylinder reversal valve 22 of hydraulic cylinder 16 directions of feed, described hydraulic cylinder reversal valve 22 is three position four-way directional control valve, oil-feed valve port is communicated with described hydraulic power source 17, and hydraulic cylinder reversal valve 22 adopts steel ball positioning action, hydraulic cylinder 16 speed while hoisting by regulating valve port size to control;
In order to control the oil motor reversal valve 19 of oil motor 9 sense of rotation and rotational speed, described oil motor reversal valve 19 is three position four-way directional control valve, oil-feed valve port is communicated with described hydraulic power source 17, oil motor reversal valve 19 adopts steel ball positioning action, the speed while rotating by regulating valve port size to control;
In order to control the overflow reduction valve 20 of hydraulic cylinder 16 centripetal forces, comprise input end, output terminal and drain tap, described input end is communicated with an output terminal of described hydraulic cylinder reversal valve 22, and described drain tap is communicated with described hydraulic reservoir 18;
In order to prevent that hydraulic cylinder 16 from falling down suddenly and keeping hydraulic system hydraulically balanced valve 21 stably, comprise two input ports and two delivery outlets, another output terminal of one of them input port and described hydraulicdirectional control valve is communicated with, the output terminal of another input port and described overflow reduction valve 20 is communicated with, and two output terminals are communicated with described oil motor 9 respectively.
Hydraulic cylinder reversal valve 22, oil motor reversal valve 19, overflow reduction valve 20 and hydraulically balanced valve 21 are installed in operator's console, expose handle so that operation.
Please refer to Fig. 5, Fig. 5 is the structural representation of the mud circulating system of turbine drilling technology experimental provision of the present invention.
Described mud circulating system also comprises
Water swivel 25, conducting turbodrill 4 and steam piano 3, to the interior injection mud of turbodrill 4 or clear water;
Run-down pipe 31, is provided with surplus valve 32 on described run-down pipe 31, and described run-down pipe 31 is communicated with described pressure pipe 26 and suction pit 2, and described surplus valve 32 is in order to regulate the flow of steam piano 3.
The major function of mud circulating system: steam piano 3 is drawn mud (clear water) from suction pit 2, by pump, produce high-pressure slurry (clear water), the rotor of power drilling tool at the bottom of the hole of output high-pressure slurry (clear water) driving turbodrill 4 or other experiments, thereby drive bit, drive the rock of drill bit in rock case 1 to creep into, mud passes through in the rear inflow rock of turbodrill 4 case 1, then flows back to suction pit 2 by rock case 1, and whole process mud does not have leakage substantially.
Please refer to Fig. 6, Fig. 6 is the structural representation of the support stand of turbine drilling technology experimental provision of the present invention.
Described support stand comprises joist steel 33, a plurality of transverse stiffener ribs 34, a plurality of oblique reinforcements 35, bracing frame base plate 36, pedestal 37 and a plurality of fixed support 38, a plurality of described transverse stiffener ribs 34 horizontal intervals are welded in the groove of described joist steel 33, described oblique reinforcement 35 be take transverse stiffener rib 34 and as line of symmetry tilts, is welded on described transverse stiffener rib 34 both sides, a plurality of described fixed supports 38 are disposed on the rear portion at described joist steel 33, described back up pad base plate is welded on described joist steel 33 bottoms, on described support baseboard, have semicircle orifice, two described hydraulic cylinders 16 are arranged on support frame as described above base plate 36, described pedestal 37 is arranged on the bottom of support frame as described above base plate 36.
Described pedestal 37 has a cavity, and described cavity is welded by square steel, in the side of described pedestal 37, is welded with reinforcement.
The principle of work of turbine drilling technique experimental provision:
The mud (clear water) by high pressure slurry pump 3 outputs with certain pressure and flow drives turbodrill 4 to rotate, output torque and rotating speed; By rotation charger, act on turbodrill 4 urceolus, pressurization operating mode at the bottom of simulation hole, drill bit in turbodrill 4 bottom rotations produces broken rock moment of torsion, drill bit is continuous drilling depth in the rock of experimental provision bottom, the power drilling tool of simulation under the hole process of coring, test macro Real-time Collection parameters, and regulate main contral parameter by man-machine interaction, all parameters all show in real time, store, to carry out under line, analyze.
By carrying out the turbodrill 4 of different-diameter, different progression, different structure, at different hydraulic parameters (pressure, flow), different drilling technology (parameter such as coring crown, the pressure of the drill), experimental work under the conditions such as different formation condition (different rock), according to object of experiment, carry out turbodrill 4 characteristic test researchs and the research of turbodrilling technology.Meanwhile, also can be used as the test experiments platform of power drilling tool and other drilling tools under the hole of other hydro powered.
Turbine drilling technique experiment table is vertical structure, mud circulating system utilizes high pressure slurry pump 3 from suction pit 2, to draw mud, and the high-pressure slurry of output certain flow and pressure, passes through mud line, drive turbodrill 4 rotations, and make the purification of drilling mud that turbodrill 4 passes through and get back to suction pit 2.Experimental stand has been mainly the basic operations such as the support, righting, clamping, lifting of turbodrill 4, utilize unit head on support stand to apply continuously adjustable the pressure of the drill to the drill bit of turbodrill 4 bottoms, and in turbodrill 4 start-up courses, provide certain rotary torque to drive rotation smoothly.
The parts (as valves such as pressure unit 27, flowmeter 28, water swivel 25 and safety valve, back-water valve (BWV)s) of respectively supervising of this experimental provision are connected with external data acquisition system and can measure in real time the pressure of the drill, pressure, flow, drilling speed, drilling depth, moment of torsion, rotating speed equivalent, can carry out continuous regulation and control to steam piano 3 flows and the pressure of the drill, monitoring result is presented on display in real time, the function that possesses security alarm and emergency action, and save data in real time, be convenient to off-line analysis with comprehensive.
Above-described embodiment is only for the invention example is clearly described, and the not restriction to the invention embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all embodiments.All any apparent variations of being extended out within the spirit and principles in the present invention or change are still among the protection domain in the invention claim.
Claims (7)
1. turbine drilling technology experimental provision, it is characterized in that, comprise support stand, rotation charger, turbodrill and mud circulating system, described mud circulating system comprises rock case, suction pit and steam piano, described rock case is arranged on the below of described turbodrill, on described turbodrill, be provided with righting mechanism, the input channel of described steam piano is communicated with described suction pit, described rock case downside has water delivering orifice, described water delivering orifice is communicated with described suction pit, the output channel of described steam piano is communicated with described turbodrill, the clutch end of described rotation charger is connected with described turbodrill.
2. turbine drilling technology experimental provision according to claim 1, it is characterized in that, in described rock case, be cube shaped, at described rock case inner bottom part, be provided with a plurality of slotted eyes, also comprise rock fixed bar, described rock fixed bar one end has oval head, and the described slotted eye that described ellipse inserts described rock case inner bottom part setting rotates rear and described slotted eye clamping; The other end is a connector being threaded with it, on described connector, has through hole, over against two described rock fixed bar connectors on through hole in insert a depression bar.
3. turbine drilling technology experimental provision according to claim 2, it is characterized in that, rotation charger comprises oil motor, torque sensor, speed reduction unit, hydraulic cylinder piston mount pad, bearing mounting base, bearing, main shaft, two hydraulic cylinders, described oil motor is arranged on the input end of described speed reduction unit, described torque sensor is arranged between described speed reduction unit and described oil motor, the output terminal bottom of described speed reduction unit connects described main shaft, described bearing is arranged on described main shaft by bearing mounting base, described bearing mounting base is arranged on described hydraulic cylinder piston mount pad, the cylinder body of two described hydraulic cylinders is arranged on the below of described support stand, described main shaft connects turbodrill, stretch out the described spindle floating setting of described speed reduction unit output terminal top.
4. turbine drilling technology experimental provision according to claim 3, is characterized in that, described rotation charger also comprises hydraulic control system, and described hydraulic control system comprises
Hydraulic power source;
In order to control the hydraulic cylinder reversal valve of hydraulic cylinder direction of feed, described hydraulic cylinder reversal valve is three position four-way directional control valve, and oil-feed valve port is communicated with described hydraulic power source;
In order to control the oil motor reversal valve of oil motor sense of rotation and rotational speed, described oil motor reversal valve is three position four-way directional control valve, and oil-feed valve port is communicated with described hydraulic power source;
In order to control the overflow reduction valve of hydraulic cylinder centripetal force, comprise input end, output terminal and drain tap, described input end is communicated with an output terminal of described hydraulic cylinder reversal valve, and described drain tap is communicated with described hydraulic power source;
In order to prevent that hydraulic cylinder from falling down suddenly and keeping hydraulic system hydraulically balanced valve stably, comprise two input ports and two delivery outlets, another output terminal of one of them input port and described hydraulicdirectional control valve is communicated with, the output terminal of another input port and described overflow reduction valve is communicated with, and two output terminals are communicated with described oil motor respectively.
5. turbine drilling technology experimental provision according to claim 4, is characterized in that, described mud circulating system also comprises
Shower nozzle, is arranged in described suction pit, in order to draw impurity screening in the process of mud or clear water in suction pit;
Suction hose, two ends are connected with shower nozzle with the input end of steam piano respectively;
Water swivel, conducting turbodrill and steam piano inject mud or clear water in turbodrill;
Pressure pipe, two ends are connected with water swivel with mud delivery side of pump respectively;
Pressure unit, is arranged on pressure pipe, in order to show that pressure changes and hydraulic pressure information is converted to electric signal;
Flowmeter, is arranged on suction hose, in order to monitor the flow information of steam piano;
Return pipe, on described return pipe, be provided with safety valve, described return pipe is communicated with pressure pipe and suction pit, described safety valve prevents from when pressure pipe from stopping up having an accident, when described pressure pipe internal pressure surpasses opening pressure of safety valve, safety valve is opened automatically, and gush out the under pressure spout hole of safety valve of mud or clear water, flows back to pond by return pipe.
Relief tube, is provided with back-water valve (BWV) on described relief tube, and described relief tube is communicated with pressure pipe and return pipe, and described back-water valve (BWV) is discharged mud or the clear water that pumping hole has pressure when stopping steam piano and used; Or whether suct washing fluid after being used for checking unlatching steam piano.
Run-down pipe, is provided with surplus valve on described run-down pipe, and described run-down pipe is communicated with described pressure pipe and suction pit, and described surplus valve is in order to regulate the flow of steam piano.
6. according to the arbitrary described turbine drilling technology experimental provision of claim 3-5, it is characterized in that, described support stand comprises joist steel, a plurality of transverse stiffener ribs, a plurality of oblique reinforcements, bracing frame base plate, pedestal and a plurality of fixed support, a plurality of described transverse stiffener ribs horizontal interval is welded in the groove of described joist steel, described oblique reinforcement be take transverse stiffener rib and as line of symmetry tilts, is welded on described transverse stiffener rib both sides, a plurality of described fixed supports are disposed on the rear portion at described joist steel, described back up pad base plate is welded on described joist steel bottom, on described support baseboard, have semicircle orifice, two described hydraulic cylinders are arranged on support frame as described above base plate, described pedestal is arranged on the bottom of support frame as described above base plate.
7. turbine drilling technology experimental provision according to claim 6, is characterized in that, described pedestal has a cavity, and described cavity is welded by square steel, in the side of described pedestal, is welded with reinforcement.
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| CN201310629298.8A CN103630348B (en) | 2013-11-29 | 2013-11-29 | Turbine drilling technology experimental provision |
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| CN111024525A (en) * | 2018-10-10 | 2020-04-17 | 中国石油化工股份有限公司 | Temporary plugging ball evaluation device and method for testing temporary plugging ball plugging performance by using same |
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| CN103630348B (en) | 2015-11-18 |
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