CN204457423U - Continuous trepan - Google Patents
Continuous trepan Download PDFInfo
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- CN204457423U CN204457423U CN201420804993.3U CN201420804993U CN204457423U CN 204457423 U CN204457423 U CN 204457423U CN 201420804993 U CN201420804993 U CN 201420804993U CN 204457423 U CN204457423 U CN 204457423U
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Abstract
The utility model relates to drilling technology field, especially relates to continuous trepan, comprising: continuously drilling apparatus, under drive lifting gear, top is driven, is pushed up and drive lifting gear, clamping device, drilling fluid feed system, and drives the support of lifting gear for support top; Top is driven and is driven lifting gear be arranged on support by top, and top is driven lifting gear and driven for being elevated top; Continuous drilling apparatus is arranged on the below of pushing up and driving, and comprises casing, upper shackle assembly, lower driving assembly and runner and switches assembly.Utilize top to drive to cooperatively interact with continuous drilling apparatus, realize creeping into continuously, thus do not need when stacks to stop down-hole drilling fluids circulation and downhole tool rotation to creep into, shorten drilling period, eliminate landwaste sedimentation, and again start circulation and drilling rod and rotate and creep into the pressure oscillation that causes and dynamic load is impacted, so decrease generation bit freezing, cave in, the probability of the down-hole accident such as leakage or well kick, also can extend the application life of drilling tool.
Description
Technical field
The utility model relates to drilling technology field, especially relates to continuous trepan.
Background technology
Drilling well (drilling) utilizes plant equipment, stratum is drilled to the engineering of the cylindrical orifice with certain depth.In geology and oil work, the column circular hole that the diameter utilizing trepan to be drilled to underground is less, the degree of depth is larger, also known as boring.Drilling well diameter and depth size, depend on drilling well purposes and mineral products buried depth etc.
Trepan in correlation technique, comprises that top is driven, drilling rod, drill bit, lifting appliance, support and for carrying the standpipe of drilling fluid; Lifting appliance is arranged on support, and top is driven and is arranged on lifting appliance, and described lifting appliance drives for promoting top; Push up the below of driving and be removably connected with drilling rod, the lower end of drilling rod is removably connected with drill bit, and one end of standpipe is run through top and driven, to carry drilling fluid in drilling rod.
When user is when using trepan, driven with top the upper end of first drilling rod and be connected, lower end is connected with drill bit, then starts top and drives the rotation of drive drilling rod, thus make bit bore.When below first drilling rod soon submerges earth's surface, slush pump termination of pumping, stop drilling fluid supply, drilling tool stops operating and creeps into, then the upper end of first drilling rod and top are driven and dismantle, pull-up is driven in top by lifting appliance, top is driven apart to have with the upper end of first drilling rod during a run of steel to stop promoting.Driven with top the upper end of second drilling rod and be connected, lower end is connected with the upper end of first drilling rod.Again start slush pump and top to drive, drive drilling tool to continue to be rotated down and creep into.Back and forth following, till boring reaches the default degree of depth.
But, trepan in correlation technique, in the process of creeping into, because stacks needs to stop circulation of drilling fluid and stop down-hole equipment rotating creeping into, not only extend drilling period, and easily cause landwaste sedimentation to cause bit freezing, simultaneously, again start that the pressure oscillation that causes of circulating easily causes that down-hole caves in, the accident such as leakage or well kick, again start drilling rod and rotate to creep into and cause dynamic load to impact will to affect the application life of drilling tool.
Utility model content
The purpose of this utility model is to provide continuous trepan, need to stop circulation of drilling fluid and down-hole equipment to rotate creep into solve in the stacks process that exists in prior art, cause drilling period long, also easily there is bit freezing, cave in, the accident such as leakage or well kick, and again start drilling rod and rotate to creep into and cause dynamic load to impact the technical problems such as the application life that will affect drilling tool.
The continuous trepan that the utility model provides, comprising: continuously drilling apparatus, under drive lifting gear, top is driven, is pushed up and drive lifting gear, clamping device, drilling fluid feed system, and drives the support of lifting gear for support top; Top is driven and is driven lifting gear be arranged on support by top, and top is driven lifting gear and driven for being elevated top; Continuous drilling apparatus is arranged on the below of pushing up and driving, and comprises casing, upper shackle assembly, lower driving assembly and runner and switches assembly; Be provided with operating walk way in casing, operating walk way is the hollow housing of both ends open, and operating walk way runs through casing up and down; Operating walk way is used for being set in outside drilling rod; The sidewall of housing with under drive lifting gear and be connected; Under drive lifting gear and move up and down for driving casing; The upper surface of casing is provided with shackle assembly; Upper shackle assembly is used for two drilling rods to connect or dismounting; Lower driving assembly is arranged on the lower end of casing, rotates for driving drilling rod; Runner switches assembly and is arranged on operating walk way, and is communicated with drilling fluid feed system, for providing drilling fluid to drilling rod; Clamping device is arranged on the below of pushing up and driving, and drives between continuous drilling apparatus for drilling rod being fixed on top.
Further, lower driving assembly comprises the first power source, the first rotating disk, the first fixed block and multiple second power source; First rotating disk is circular, and is positioned at the below of operating walk way, and itself and casing are rotationally connected; First power source and the first rotating disk are in transmission connection, for driving the first dial rotation; First rotating disk is relatively set with the first fixed block, and each first fixed block is all in transmission connection with second power source, the second power source for promoting the first fixed block, with fixing drilling rod.
Further, upper shackle assembly comprises the 3rd power source second rotating disk, the first lifting gear, the second fixed block and multiple 4th power source; First lifting gear is arranged on the upper surface of casing, and the 3rd power source and the second rotating disk are all arranged on the first lifting gear; Second rotating disk is circular, and is positioned at the top of operating walk way; 3rd power source and the second rotating disk are in transmission connection, for driving the second dial rotation; Second rotating disk is relatively set with the second fixed block, and each second fixed block is all in transmission connection with the 4th power source, and the 4th power source, for promoting the second fixed block, drives or drilling rod with fixing top.
Further, runner switching assembly comprises brake application plate valve, lower flashboard valve, blank ram valve, lower bypass valve and upper bypass valve; Brake application plate valve and lower flashboard valve include left flashboard and right flashboard; Left flashboard and right flashboard are relatively set with semicircular indentations, the through hole of two semicircular indentations formation for wearing drilling rod; Brake application plate valve, blank ram valve and lower flashboard valve, along the direction that described operating walk way extends, be successively set on operating walk way; On the sidewall of operating walk way, export under being provided with drilling fluid between blank ram valve and lower flashboard valve, under drilling fluid, outlet is communicated with drilling fluid feed system, under drilling fluid, outlet is provided with lower bypass valve;
On the sidewall of operating walk way, be provided with drilling fluid upper outlet between blank ram valve and brake application plate valve, drilling fluid upper outlet is communicated with drilling fluid feed system, and drilling fluid upper outlet is provided with bypass valve.
Further, drilling fluid feed system also comprises slush pump, slurry tank, runner switch and standpipe; Slush pump comprises stock inlet and grout outlet; Stock inlet is communicated with slurry tank; Runner switch comprises an import and two outlets; Import is communicated with grout outlet, one end of standpipe and an outlet, and the other end runs through top and drives, to carry drilling fluid in drilling rod; Another exports by outlet under pipeline and drilling fluid, to carry drilling fluid in operating walk way; Drilling fluid upper outlet is communicated with slurry tank.
Further, top is driven lifting gear and is comprised: top drive guide rail, top drive coaster and first hoist; Support comprises base, the first vertical pole and the first top support; The lower end of the first vertical pole is arranged on base, and the first top support is arranged on the upper end of the first vertical pole; First top support is provided with the first fixed pulley; Top is driven and is provided with the first movable pulley; Top drive guide rail, along the direction that the first vertical pole extends, is arranged on the first vertical pole; Top is driven coaster and is slidably installed on top drive guide rail; One end winding of the wire rope in first hoist on the first fixed pulley and the first movable pulley, and is fixedly connected with top support; Top is driven coaster and is connected with the sidewall that top is driven, and drives move along top drive guide rail for driving top.
Further, drive lifting gear under to comprise: under drive guide rail, under drive coaster and lifting hydraulic cylinder; Support also comprises the second vertical pole, and the second vertical pole is parallel with the first vertical pole; The lower end of the second vertical pole is arranged on base; Under drive guide rail, along the direction that the second vertical pole extends, be arranged on the second vertical pole; Under drive coaster and be slidably installed in down and drive on guide rail; One end of lifting hydraulic cylinder with under drive coaster and be connected, the other end is arranged on base, with make down to drive coaster along under drive guide rail and move; Under drive coaster and be connected with continuous drilling apparatus, for drive continuous drilling apparatus along under drive guide rail and move.
Further, clamping device comprises a pair manipulator and frame; A manipulator is arranged on the upper end of frame, and another manipulator is arranged on the lower end of frame; Frame is arranged on base, for by drilling rod shift-in or shift out top and drive between continuous drilling apparatus.
Further, clamping device also comprises back-up tong and hydraulic cylinder; Back-up tong is provided with connecting rod; One end of connecting rod is connected with back-up tong, and the other end and top turn and be dynamically connected; One end of hydraulic cylinder and top turn and are dynamically connected, and the other end and connecting rod are rotationally connected; Hydraulic cylinder is used for mobile link bar.
Further, push up the lower end of driving and be provided with lengthening joint; Lengthening joint is used for being connected with drilling rod.
The continuous trepan that the utility model provides, it is provided with top and drives lifting gear on support, drives lifting gear lifting top and drives, continuous drilling apparatus is arranged on the below of pushing up and driving by top, and drive lifting gear and be elevated continuous drilling apparatus under utilizing, operating walk way is provided with runner and switches assembly.Before user uses continuous trepan, first the upper end of first drilling rod is pushed up the lower end of driving and connect, the lower end of first drilling rod through operating walk way, and is connected with the upper end of drill bit.Start top drive and drive first drilling rod boring.Meanwhile, continuous drilling apparatus rises to top and drives and first drilling rod junction.In startup, shackle assembly clamps the lower end of pushing up and driving, and starts lower driving assembly and fixes first drilling rod, and lower driving assembly is synchronously rotated along with top is driven.Meanwhile, start runner and switch assembly, open drilling fluid feed system.Then, in utilization, top is driven and is dismantled with first drilling rod by shackle assembly.Upper shackle assembly unclamps top and drives, and utilizes top to drive lifting gear and is driven on top and rise to initial position.Drilling fluid feed system switches the lower bypass valve of assembly by runner makes drilling fluid enter operating walk way, and flows in first drilling rod, realizes the uninterrupted circulation of drilling fluid, and lower driving assembly drives drilling rod to continue to be rotated down and creep into.
When pushing up the distance of driving between continuous drilling apparatus and being greater than the length of drilling rod, utilize clamping device to be fixed on by second drilling rod and push up the lower end of driving, and utilize top to turn dynamicly to be connected pushing up the lower end of driving with the upper end of second drilling rod.Utilize top to drive lifting gear top is driven to move down, and the lower end of second drilling rod is inserted in operating walk way, and fixed by upper shackle assembly.Now, close runner and switch assembly, drilling fluid drives from top and is supplied in second drilling rod by drilling fluid feed system.Second drilling rod is connected with first drilling rod by upper shackle assembly, and decontrols second drilling rod.Meanwhile, top is driven and is crept into along with lower driving assembly is together rotated down.Then, lower driving assembly unclamps first drilling rod, and again rise to top drive the junction with second drilling rod, again carry out above-mentioned process, thus continuous print increase drilling rod, to realize continual creeping into.
Due to the continuous trepan in the utility model, do not need to stop down-hole drilling fluids circulation and downhole tool to rotate to creep into when stacks, shorten drilling period, eliminate landwaste sedimentation, and startup circulation and drilling rod rotate the pressure oscillation and dynamic load impact of creeping into and causing again, so decrease there is bit freezing, cave in, the probability of the down-hole accident such as leakage or well kick, also can extend the application life of drilling tool.
Accompanying drawing explanation
The structural representation of the continuous trepan that Fig. 1 provides for the utility model embodiment;
The sectional view of the continuous drilling apparatus in the continuous trepan that Fig. 2 provides for the utility model embodiment;
The structural representation that Fig. 3 utilizes continuous drilling apparatus to creep into for continuous trepan that the utility model embodiment provides;
The structural representation of the continuous trepan installation drilling rod that Fig. 4 provides for the utility model embodiment;
The structural representation of the continuous trepan dismounting drilling rod that Fig. 5 provides for the utility model embodiment.
Reference numeral:
1-drives on top; The continuous drilling apparatus of 2-; 3-drives lifting gear in top;
Lifting gear is driven under 4-; 5-support; 6-back-up tong;
7-manipulator; 8-drilling rod; 9-drilling fluid feed system;
11-lengthening joint; 21-casing; Assembly is driven under 22-;
The upper shackle assembly of 23-; 24-runner switches assembly; 211-operating walk way;
221-first power source; 222-second power source; 223-first rotating disk;
224-first fixed block; 231-the 3rd power source; 232-the 4th power source;
233-second rotating disk; 234-second fixed block; 235-first lifting gear;
241-brake application plate valve; 242-blank ram valve; 243-lower flashboard valve;
Bypass valve under 244-; The upper bypass valve of 245-; 31-drives coaster in top;
32-first movable pulley; Coaster is driven under 41-; 51-base;
52-first is pole vertically; 53-first top support; 531-first fixed pulley;
91-runner switch; 92-slush pump; 93-slurry tank
94-standpipe; 10-frame.
Detailed description of the invention
Be clearly and completely described the technical solution of the utility model below in conjunction with accompanying drawing, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
In description of the present utility model, it should be noted that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, "left", "right", " vertically ", " level ", " interior ", " outward " they be based on orientation shown in the drawings or position relationship; be only the utility model and simplified characterization for convenience of description; instead of instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second ", " the 3rd " only for describing object, and can not be interpreted as instruction or hint relative importance.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition the concrete meaning of above-mentioned term in the utility model can be understood.
The structural representation of the continuous trepan that Fig. 1 provides for the utility model embodiment; The sectional view of the continuous drilling apparatus in the continuous trepan that Fig. 2 provides for the utility model embodiment; The structural representation that Fig. 3 utilizes continuous drilling apparatus to creep into for continuous trepan that the utility model embodiment provides; The structural representation of the continuous trepan installation drilling rod that Fig. 4 provides for the utility model embodiment; As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the continuous trepan that the present embodiment provides, comprise: continuously drilling apparatus 2, under drive lifting gear 4, top drives 1, top is driven lifting gear 3, clamping device, drilling fluid feed system 9, and driven the support 5 of lifting gear 3 for support top; Top is driven 1 and is driven lifting gear 3 by top and be arranged on support 5, and top is driven lifting gear 3 and driven 1 for being elevated top; Continuous drilling apparatus 2 is arranged on the below that top drives 1, comprises casing 21, upper shackle assembly, lower driving assembly 22 and runner and switches assembly 24; Be provided with operating walk way 211 in casing 21, operating walk way 211 is the hollow housing of both ends open, and operating walk way about 211 runs through casing 21; Operating walk way 211 is for being set in outside drilling rod 8; The sidewall of housing with under drive lifting gear 4 and be connected; Under drive lifting gear 4 and move up and down for driving casing 21; The upper surface of casing 21 is provided with shackle assembly; Upper shackle assembly is used for two drilling rods 8 connect or dismantle; Lower driving assembly 22 is arranged on the lower end of casing 21, rotates for driving drilling rod 8; Runner switches assembly 24 and is arranged on operating walk way 211, and is communicated with drilling fluid feed system 9, for providing drilling fluid to drilling rod 8; Clamping device is arranged on the below that top drives 1, drives between 1 and continuous drilling apparatus 2 for drilling rod 8 being fixed on top.
Wherein, the shape of casing 21 can be multiple, such as: cylinder, cuboid or square etc.
The material of casing 21 also can be multiple, such as: carbon steel, alloy steel, stainless steel, aluminium alloys or carbon fiber etc.
The cross sectional shape of operating walk way 211 also can be multiple, such as: square, circle or hexagon etc.
In addition, for the ease of upper shackle assembly 23 realize top drive 1 with drilling rod 8 before dismounting and installation work, the lower end of driving 1 on top is provided with lengthening joint 11, and the lower end that drilling rod 8 drives 1 by lengthening joint 11 and top is connected, thus reserves operating space for continuous drilling apparatus 2.
The structure of upper shackle assembly 23 can be multiple, such as: upper shackle assembly 23 can comprise Power Tong and a lifting gear, by Power Tong holding drill pipe 8, utilize the lower assembly 22 that drives as fixing pincers, two drilling rods 8 and lengthening joint and drilling rod 8 are carried out dismantling or installing.
The structure of lower driving assembly 22 can be multiple, such as: the lower assembly 22 that drives can comprise motor and the rotating disk being provided with external gear, the power output rod of motor is provided with the gear be meshed with external gear.Brill dish is annular, and brill dish is relatively set with hydraulic cylinder, and one end of each hydraulic cylinder is also provided with fixed block, for fixing drilling rod 8, and drives drilling rod 8 to creep into.
The structure that runner switches assembly 24 can be multiple, such as: can the two ends up and down of operating walk way 211 all on be provided with dividing plate, the circular open for passing for drilling rod 8 or lengthening joint 11 is provided with in the centre of dividing plate, on dividing plate, the both sides being positioned at circular open are relatively set with chute, chute is slidably equipped with slide plate, slide plate can be promoted by the power source such as fluid cylinder or cylinder, slide plate is moved on chute, thus close or open circular open, thus form the space being used for drilling fluid, on the sidewall of operating walk way 211, between two dividing plates, be provided with the import of drilling fluid.
The structure that lifting gear 3 is driven on top also for multiple, such as: it can be hydraulic cylinder that lifting gear 3 is driven on top, can be driven by hydraulic cylinder drive top and moves up and down; Top is driven lifting gear and also can be comprised slide block and tooth bar, tooth bar can vertically be arranged on support 5, slide block drives with top and is fixedly connected with, slide block is provided with the power source such as motor or gasoline engine, slide block is provided with the gear be meshed with tooth bar, gear and power source are in transmission connection, and are rotated by power source driven gear, thus realize top and drive 1 move up and down.
Under drive lifting gear 4 structure also can for multiple, under drive lifting gear structure can to drive the structure of lifting gear identical with top, also can realize for other structure that continuous drilling apparatus moves up and down.
The continuous trepan that the present embodiment provides, it is provided with top and drives lifting gear 3 on support 5, drive lifting gear 3 by top to be elevated top and to drive 1, continuous drilling apparatus 2 is arranged on the below that top drives 1, and drive lifting gear 4 and be elevated continuous drilling apparatus 2 under utilizing, operating walk way 211 is provided with runner and switches assembly 24.Before user uses continuous trepan, be first connected the lower end that the upper end of first drilling rod 8 and top drive 1, the lower end of first drilling rod 8 through operating walk way 211, and is connected with the upper end of drill bit.Startup top is driven 1 drive, first drilling rod 8 and is holed.
Meanwhile, continuous drilling apparatus 2 rises to lengthening joint 11 and first drilling rod 8 junction that top drives 1.In startup, shackle assembly 23 clamps the lower end that top drives 1, starts lower driving assembly 22 and fixes first drilling rod 8, and lower driving assembly 22 is synchronously rotated along with top drives 1.Meanwhile, start runner and switch assembly, open drilling fluid feed system.Then, in utilization shackle assembly 23 top is driven 1 and first drilling rod 8 dismantle.Upper shackle assembly 23 unclamps top and drives 1, utilizes top to drive lifting gear 3 and top is driven 1 rises to initial position.Drilling fluid feed system 9 switches the lower bypass valve 244 of assembly 24 by runner makes drilling fluid enter operating walk way 211, and flows in first drilling rod 8, realizes the uninterrupted circulation of drilling fluid, and lower driving assembly 22 drives drilling rod 8 to continue to be rotated down and creep into.
When push up drive 1 and distance continuously between drilling apparatus 2 be greater than the length of drilling rod 8 time, utilize clamping device to be fixed on by second drilling rod 8 lower end that top drives 1, and utilize top to drive 1 rotation the lower end that top drives 1 is connected with the upper end of second drilling rod 8.Utilize top to drive lifting gear 3 top is driven 1 to move down, and the lower end of second drilling rod 8 is inserted in operating walk way 211, and fixed by upper shackle assembly 23.Now, close runner and switch assembly 24, drilling fluid is driven 1 from top and is supplied in second drilling rod 8 by drilling fluid feed system 9.Second drilling rod 8 is connected with first drilling rod 8 by upper shackle assembly 23, and decontrols second drilling rod 8.Meanwhile, top is driven 1 along with lower driving assembly 22 and is together rotated down.Then, lower driving assembly 22 unclamps first drilling rod 8, and again rises to the junction that 1 and second drilling rod 8 are driven in top, again carry out above-mentioned process, thus continuous print increases drilling rod 8, to realize continual creeping into.
Due to the continuous trepan in the present embodiment, do not need to stop down-hole drilling fluids circulation and downhole tool to rotate to creep into when stacks, shorten drilling period, eliminate landwaste sedimentation, and startup circulation and drilling rod rotate the pressure oscillation and dynamic load impact of creeping into and causing again, so decrease there is bit freezing, cave in, the probability of the down-hole accident such as leakage or well kick, also can extend the application life of drilling tool.
As depicted in figs. 1 and 2, on the basis of above-described embodiment, further, lower driving assembly 22 comprises the first power source 221, first rotating disk 223, first fixed block 224 and multiple second power source 222; First rotating disk 223 in circular, and is positioned at the below of operating walk way 211, and itself and casing 21 are rotationally connected; First power source 221 and the first rotating disk 223 are in transmission connection, and rotate for driving the first rotating disk 223; First rotating disk 223 is relatively set with the first fixed block 224, and each first fixed block 224 is all in transmission connection with second power source 222, the second power source 222 for promoting the first fixed block 224, with fixing drilling rod 8.
Wherein, the first power source 221 can be multiple, such as: motor, hydraulic motor, petrol engine or Diesel engine etc., is preferably motor or hydraulic motor.
Second power source 222 can be multiple, such as: cylinder, hydraulic cylinder or electric expansion bar etc.
The form be in transmission connection of the first power source 221 and the first rotating disk 223 can for multiple, such as: the soffit of the first rotating disk 223 can be provided with belt pulley, the power output shaft of the first power source 221 is also provided with belt pulley, thus makes the first power source 221 drive the first rotating disk 223 to rotate.
And for example: the sidewall of the first rotating disk 223 is provided with external gear, the power output shaft of the first power source 221 is provided with the gear be meshed with external gear, thus makes the first power source 221 drive the first rotating disk 223 to rotate.
First fixed block 224 can be a pair, also can be multipair, often pair of all relative being arranged on the first rotating disk 223 of the first fixed block 224, thus is fixed by drilling rod 8.The shape of the first fixed block 224 can be multiple, such as: hexahedron or square etc., also the one side abutted with drilling rod 8 can be supported and be set to arc, thus increase the contact area between the first fixed block 224 and drilling rod 8, increase frictional force, be convenient to fixing drilling rod 8.Or the one side that the first fixed block abuts with drilling rod 8 supported be set to " V " type, with the drilling rod making the first fixed block 224 can adapt to sizes, improve the compliance of the first fixed block 224.
When continuous drilling apparatus 2 arrives the position of lengthening joint 11, start the first power source 221 and drive the first rotating disk 223 to rotate, the rotating speed of the first rotating disk 223 and top is made to drive the rotating speed of 1 and turn to identical, and then start the second power source 222, second power source 222 promotes the first fixed block 224 and moves to drilling rod 8 direction, and is fixed by drilling rod 8.Now, top drive 1 and continuous drilling apparatus 2 synchronously rotate.And then utilize upper shackle assembly 23 to fix lengthening joint 11 and after lengthening joint 11 and drilling rod 8 being split, unclamp lengthening joint 11, top is driven 1 and moved up, and lower driving assembly 22 drives this drilling rod 8 to continue to creep into downwards.
When the next drilling rod 8 of 1 installation is driven on top, and the lower end of next drilling rod 8 is inserted in operating walk way 211, and after utilizing upper shackle assembly 23 to be connected with a upper drilling rod 8 by next drilling rod 8, the second power source 222 retracts the first fixed block 224, is unclamped by a upper drilling rod 8.Then, continuous drilling apparatus 2 rises to lengthening joint 11 place, carries out next one circulation.
In the present embodiment, the first rotating disk 223 is driven to rotate by the first power source 221, thus make the first fixed block 224 relative to drilling rod 8 geo-stationary, thus avoid the first fixed block 224 in the process of fixing drilling rod 8, occur to rub with drilling rod 8 and affect push up drive 1 creep into speed.Not only can extend the life-span that top drives 1, the application life of the first fixed block 224 can also be extended.
As depicted in figs. 1 and 2, on the basis of above-described embodiment, further, upper shackle assembly comprises the 3rd power source 231, first lifting gear 235, second rotating disk 233, second fixed block 234 and multiple 4th power source 232; First lifting gear 235 is arranged on the upper surface of casing 21, and the 3rd power source 231 and the second rotating disk 233 are all arranged on the first lifting gear 235; Second rotating disk 233 in circular, and is positioned at the top of operating walk way 211; 3rd power source 231 and the second rotating disk 233 are in transmission connection, and rotate for driving the second rotating disk 233; Second rotating disk 233 is relatively set with the second fixed block 234, and each second fixed block 234 is all in transmission connection with the 4th power source 232, and the 4th power source 232, for promoting the second fixed block 234, drives 1 or drilling rod 8 with fixing top.
Wherein, the 3rd power source 231 can be multiple, such as: motor, hydraulic motor, diesel engine or gasoline engine etc.
4th power source 232 can be multiple, such as: hydraulic cylinder, cylinder or electric expansion bar etc.
The connected mode of the 3rd power source 231 and the second rotating disk 233 can be multiple, such as: on the power output shaft of the soffit of the second rotating disk 233 and the second power source 222, also can be provided with belt pulley, thus make the 3rd power source 231 drive the second rotating disk 233 to rotate.
And for example: the sidewall of the second rotating disk 233 also can be provided with external gear, the power output shaft of the 3rd power source 231 is also provided with the gear be meshed with external gear, thus makes the 3rd power source 231 drive the second rotating disk 233 to rotate.
Second fixed block 234 can be a pair, also can be multipair, often pair of all relative being arranged on the second rotating disk 233 of the second fixed block 234, thus lengthening joint 11 or drilling rod 8 is fixed.The shape of the second fixed block 234 can be multiple, such as: hexahedron or square etc., also the one side abutted with drilling rod 8 can be supported arc, thus increase the contact area between the second fixed block 234 and drilling rod 8, increase frictional force, be convenient to fixing lengthening joint 11 or drilling rod 8.The one side that second fixed block abuts with drilling rod 8 can also be supported and be set to " V " type, with the drilling rod making the second fixed block 234 can adapt to sizes, improve the compliance of the second fixed block 234.
The structure of the first lifting gear 235 can be multiple, such as: the first lifting gear 235 comprises gripper shoe, four hydraulic cylinders; Four hydraulic cylinders are arranged on the upper surface of casing 21, and four hydraulic cylinders are provided with gripper shoe; On the supporting plate, the position relative with the inner ring of the second rotating disk 233, is provided with circular port; Second power source 222 and rotating disk are arranged on the supporting plate.Move up and down gripper shoe by four hydraulic cylinders, and then move up and down the second rotating disk 233.
As shown in Figure 1, Figure 3 and Figure 4, when continuous drilling apparatus 2 rises to lengthening joint 11 place, lower drive unit and drilling rod 8 are fixed together.First lifting gear 235 drives the second rotating disk 233 to move down, and starts the 3rd power source 231 and also drives the second rotating disk 233 to rotate, then promotes the second fixed block 234 by the 4th power source 232 and fixed by lengthening joint 11, and now, top is driven 1 and stopped operating.Second rotating disk 233 drives the second fixed block 234 to rotate, its rotation direction is oppositely contrary with the rotation of the first rotating disk 223, first lifting gear 235 drives the second rotating disk 233 and the second fixed block 234 rising gradually simultaneously, thus is separated with drilling rod 8 by lengthening joint 11.After lengthening joint 11 is separated with drilling rod 8, the second rotating disk 233 stops operating, and the second fixed block 234 unclamps lengthening joint, and top is driven lifting gear 3 and top is driven 1 risen to home position, wait next drilling rod 8 to be installed, and lower driving assembly 22 drives drilling rod 8 to continue to creep into.
When the lower end of lengthening joint 11 and the distance continuously between drilling apparatus 2 are greater than the length of drilling rod 8, clamping device is utilized to be moved into by next drilling rod 8 between lengthening joint 11 and continuous drilling apparatus 2.Then, utilize top to drive the rotation of 1, be connected with next drilling rod 8 lower end of lengthening joint 11, then, next drilling rod 8 decontroled by clamping device, and top is driven the next drilling rod 8 of 1 drive and moved down, and by the lower end update passage 211 of next drilling rod 8.
Start the second power source 222 and promote the second fixed block 234, next drilling rod 8 is fixed.Starting the first lifting gear 235 drives the second rotating disk 233 to move down, and starts the second rotating disk 233 simultaneously, thus is connected the upper end of the lower end of next drilling rod 8 with a upper drilling rod 8.Then, the second fixed block 234 unclamps next drilling rod 8, and lower driving assembly 22 unclamps a drilling rod 8.Top is driven 1 drive drilling rod 8 and is continued to creep into, and continuous drilling apparatus 2 rises to lengthening joint 11 place, carries out next one circulation.
In the present embodiment, utilize that the second rotating disk 233 is contrary with the first rotating disk 223 to rotate, thus make lengthening joint 11 and drilling rod 8 quick separating, recycle the first lifting gear 235 second rotating disk 233 is promoted, thus lengthening joint 11 is separated with drilling rod 8, drive 1 with lower driving assembly 22 join smoothly to realize top, ensure the continuation of drilling process.
As depicted in figs. 1 and 2, on the basis of above-described embodiment, further, runner switching assembly 24 comprises brake application plate valve 241, lower flashboard valve 243, blank ram valve 242, lower bypass valve 244 and upper bypass valve 245; Brake application plate valve 241 and lower flashboard valve 243 include left flashboard and right flashboard; Left flashboard and right flashboard are relatively set with semicircular indentations, the through hole of two semicircular indentations formation for wearing drilling rod 8; Brake application plate valve 241, blank ram valve and lower flashboard valve 243, along the direction that described operating walk way 211 extends, be successively set on operating walk way 211; On the sidewall of operating walk way 211, export under being provided with drilling fluid between blank ram valve 242 and lower flashboard valve 243, under drilling fluid, outlet is communicated with drilling fluid feed system 9, under drilling fluid, outlet is provided with lower bypass valve 244; On the sidewall of operating walk way 211, be provided with drilling fluid upper outlet between blank ram valve 242 and brake application plate valve 241, drilling fluid upper outlet is communicated with drilling fluid feed system 9, drilling fluid upper outlet is provided with bypass valve 245.
Wherein, the through hole on brake application plate valve 241 and lower flashboard valve 243 and the outer wall of drilling rod 8 and lengthening joint 11 are close to conjunction, to play the effect of sealing.
In addition, operating on the sidewall passed through, the position between brake application plate valve 241 and blank ram valve 242, is also provided with bypass valve 245, and upper bypass valve 245 is mainly for the ease of opening brake application plate valve 241.
As shown in Figure 1, Figure 3 and Figure 4, when continuous drilling apparatus 2 rises to lengthening joint 11 place, lower driving assembly 22 is fixed together with drilling rod 8, and brake application plate valve 241 and lower flashboard valve 243 are closed, and lower bypass valve 244 is opened, utilize drilling fluid feed system 9 to be delivered to by drilling fluid between brake application plate valve 241 and lower flashboard valve 243 in operating walk way 211 by exporting under drilling fluid.Meanwhile, lengthening joint 11 and drilling rod 8 disassemble by upper shackle assembly 23, thus the drilling fluid in operating walk way 211 is entered in drilling rod 8.
After lengthening joint 11 to be promoted to the top of blank ram valve 242 by upper shackle assembly 23, close blank ram valve 242, drilling fluid is circulated to down-hole by lower bypass valve 244.Then, opened to avoid drilling fluid to overflow by upper bypass valve 245, open brake application plate valve 241, upper shackle assembly 23 unclamps lengthening joint 11, and top is driven 1 and risen to the next drilling rods 8 to be installed such as predeterminated position.
When top drive 1 next drilling rod 8 is fed through operating walk way 211 after, first close brake application plate valve 241 and upper bypass valve 245, open blank ram valve 242.Then, closed by lower bypass valve 244, drilling fluid feed system 9 passes through standpipe 94 through operating walk way 211 to delivered downhole drilling fluid.In recycling, next drilling rod 8 is connected with a upper drilling rod 8 by shackle assembly 23, drilling fluid by standpipe 94 through top drive 1 and drilling rod 8 circulate to down-hole.Subsequently, open brake application plate valve 241 and lower flashboard valve 243, upper shackle assembly 23 unclamps lengthening joint 11, and lower driving assembly 22 unclamps a drilling rod 8, and top is driven 1 drive drilling rod 8 and continued to creep into.Continuous drilling apparatus 2 rises to lengthening joint 11 place again, carries out next one circulation.
In the present embodiment, switch assembly 24 by runner, thus ensure that in drilling rod 8 have drilling fluid to pass through always, thus ensure that the continual work of drill bit, ensure that the continuation of drilling process.
On the basis of above-described embodiment, further, drilling fluid feed system 9 also comprises slush pump 92, slurry tank 93, runner switch 91 and standpipe 94; Slush pump 92 comprises stock inlet and grout outlet; Stock inlet is communicated with slurry tank 93; Runner switch 91 comprises an import and two outlets; Import is communicated with grout outlet, one end of standpipe 94 and an outlet, and the other end runs through top and drives 1, to carry drilling fluid in drilling rod 8; Another outlet switches outlet under the drilling fluid of assembly 24, to carry drilling fluid in operating walk way 211 by pipeline and runner; Drilling fluid upper outlet is communicated with slurry tank 93.
Wherein, the structure of runner switch 91 can be multiple, is more simply, two way solenoid valve.The import of two way solenoid valve is communicated with slush pump 92, and an one outlet is communicated with standpipe 94, another outlet and outlet under drilling fluid, thus achieves the switching of runner.
When user is when using the continuous trepan in the present embodiment, utilize slush pump 92 that the drilling fluid pump in slurry tank 93 is entered runner switch 91.When top drive 1 for power source drive drilling rod 8 creep into time, the outlet be communicated with standpipe 94 is opened by two way solenoid valve, and drilling fluid enters in drilling rod 8 from standpipe 94.When continuous drilling apparatus 2 drives drilling rod 8 to creep into for power source, two way solenoid valve is opened switching the outlet of outlet under the drilling fluid of assembly 24 with runner, and drilling fluid enters in operating walk way 211, and then in inflow drilling rod 8.
As depicted in figs. 1 and 2, in the above-described embodiments, further, top is driven lifting gear 3 and is comprised: top drive guide rail, top drive coaster 31 and first hoist; Support 5 comprises the vertical pole 52 of base 51, first and the first top support 53; The lower end of the first vertical pole 52 is arranged on base 51, and the first top support 53 is arranged on the upper end of the first vertical pole 52; First top support 53 is provided with the first fixed pulley 531; Described top is driven on 1 and is arranged the first movable pulley 32; The direction that top drive guide rail extends along the first vertical pole 52, is arranged on the first vertical pole 52; Top is driven coaster 31 and is slidably installed on top drive guide rail; One end winding of the wire rope in first hoist on the first fixed pulley 531 and the first movable pulley 32, and is fixedly connected with top support; Top is driven coaster 31 and is connected with the sidewall that top drives 1, drives 1 move along top drive guide rail for driving top.
As shown in Figure 1, Figure 3 and Figure 4, when user is when using the continuous trepan in the present embodiment, utilizes first hoist to pull or decontroling wire rope, thus upwards to pull or coaster 31 is driven in lower caving, driving 1 to make top and move up and down.Due to, top is driven 1 and is moved up and down along top drive guide rail, so, top is driven 1 and can not be vacillated now to the left, now to the right, with the position making top drive 1 and continuous drilling apparatus 2, relatively fixing in the horizontal, thus ensure that top is driven 1 and drilling rod 8 can be inserted in continuous drilling apparatus 2, ensure that working continuously of continuous trepan.
As shown in Figure 1, in the above-described embodiments, further, drive lifting gear 4 under to comprise: under drive guide rail, under drive coaster 41 and lifting hydraulic cylinder; Support 5 also comprises the second vertical pole, and the second vertical pole is parallel with the first vertical pole 52; The lower end of the second vertical pole is arranged on base 51; Under drive guide rail, along the direction that the second vertical pole extends, be arranged on the second vertical pole; Under drive coaster 41 and be slidably installed in down and drive on guide rail; One end of lifting hydraulic cylinder with under drive coaster 41 and be connected, the other end is arranged on base 51, with make down to drive coaster 41 along under drive guide rail and move; Under drive coaster 41 and be connected with continuous drilling apparatus 2, for drive continuous drilling apparatus 2 along under drive guide rail and move.
Wherein, the head of the piston rod of lifting hydraulic cylinder is connected with base 51, the bottom of lifting hydraulic cylinder with under drive coaster 41 and be connected.Certainly, also can by the piston crown of lifting hydraulic cylinder with under drive coaster 41 and be connected, the bottom of lifting hydraulic cylinder is arranged on base 51.
When user is when using the continuous trepan in the present embodiment, driving coaster 41 under utilizing lifting hydraulic cylinder to drive, moving up and down to make down driving coaster 41.Due to, under drive and extend top and drive 1 guide rail and move up and down, so, under drive and can not vacillate now to the left, now to the right, with make top drive 1 with the position of continuous drilling apparatus 2, relatively fixing in the horizontal, thus ensure that top is driven 1 and drilling rod 8 can be inserted in continuous drilling apparatus 2, ensure that working continuously of continuous trepan.
In addition, because continuous drilling apparatus 2 and top drive 1, respectively along under drive guide rail and top and drive 1 guide rail and move, thus make continuous drilling apparatus 2 be set in outside drilling rod 8, and unnecessary friction can not be there is with drilling rod 8, so, not only can reduce the wearing and tearing of equipment, increase the service life, can also drilling efficiency be improved.
As shown in Figure 1, in the above-described embodiments, further, clamping device comprises a pair manipulator 7 and frame 10; A manipulator is arranged on the upper end of frame 10, and another manipulator is arranged on the lower end of frame 10; Frame 10 is arranged on base 51, for by drilling rod 8 shift-in or shift out top and drive 1 and continuously between drilling apparatus 2.
In addition, clamping device also comprises back-up tong 6 and hydraulic cylinder; Back-up tong 6 is provided with connecting rod; One end of connecting rod is connected with back-up tong 6, and the other end and top are driven 1 and be rotationally connected; One end of hydraulic cylinder and top are driven 1 and are rotationally connected, and the other end and connecting rod are rotationally connected; Hydraulic cylinder is used for mobile link bar.
Top is driven 1 and is comprised shell and power output shaft, and connecting rod and hydraulic cylinder are all arranged on shell.
After lengthening joint 11 is separated with a upper drilling rod 8, top is driven 1 and is risen to home position, when pushing up the distance of driving between 1 and continuous drilling apparatus 2 and being greater than the length of drilling rod 8, utilize manipulator 7 that next drilling rod 8 is moved to back-up tong 6 place, by back-up tong 6, next drilling rod 8 being fixed on top drives between 1 and continuous drilling apparatus 2, namely between lengthening joint 11 and continuous drilling apparatus 2.Then, utilize top to drive 1 rotation next drilling rod 8 is connected with the lower end of lengthening joint 11.
After top is driven and is connected with next drilling rod 8, primer fluid cylinder pressure mobile link bar, thus make connecting rod and top drive in predetermined angle, supports back-up tong 6, avoid back-up tong 6 to affect work that top drives 1.
In the various embodiments described above, can also controller be comprised, top be driven 1, first hoist, second hoist, the first power source 221, second power source 222, the 3rd power source 231, the 4th power source 232, first lifting gear 235, brake application plate valve 241, lower flashboard valve 243, blank ram valve 242, upper bypass valve 245, lower bypass valve 244, runner switch 91, slush pump 92 etc. all have controller to be electrically connected.The continuous rotation being controlled continuous trepan by controller is crept into and makes a trip continuously.
To introduce in detail below, the continuous drilling process in the present embodiment and continuous trip-out process.
One, continuous drilling process:
As shown in Figure 1, Figure 3 and Figure 4, when continuous trepan creeps into continuously, first the upper end of first drilling rod 8 is arranged on the lower end of lengthening joint 11.The lower end of first drilling rod 8 is passed through through the operation in continuous drilling apparatus 2, and is connected with drill bit, and first drilling rod 8 forms drill string with drill bit.
Startup top is driven 1 drive drill string and is crept into downwards, and meanwhile, continuous drilling apparatus 2 rises to lengthening joint 11 place.Start the first power source 221 and drive the first rotating disk 223 to rotate, making the first rotating disk 223 and top drive 1 and there is identical turning to and rotating speed.Then, start the second power source 222 to promote the first fixed block 224 and fix first drilling rod 8.Close brake application plate valve 241 and lower flashboard valve 243, the edge of the through hole of brake application plate valve 241 and the lateral wall of lengthening joint 11 are close to conjunction, the lateral wall of the edge of the through hole of lower flashboard valve 243 and first drilling rod 8 is close to conjunction, thus makes to form airtight space between brake application plate valve 241 and lower flashboard valve 243.
Open bypass valve 245 and lower bypass valve 244, export under the upper outlet of the drilling fluid on open operation passage 211 sidewall and drilling fluid, runner switch 91 opens the outlet with outlet under drilling fluid, closes the outlet be communicated with standpipe 94, drilling fluid is entered in airtight space.Now, start the first lifting gear 235 and drive the second rotating disk 233 to move down default distance, start the 4th power source 232 to promote the second fixed block 234 lengthening joint 11 is fixed, starting the 3rd power source 231 drives the second rotating disk 233 to rotate, simultaneously, top is driven 1 and is quit work, and makes the first lifting gear 235 drive the second rotating disk 233 to rise, thus is disassembled from first drilling rod 8 upper end by lengthening joint 11.
When the first lifting gear 235 drives the second rotating disk 233 to rise, after driving lengthening joint 11 to rise to the top of blank ram valve 242, blank ram valve 242 cuts out, and opens bypass valve 245 and brake application plate valve 241.4th power source 232 retracts the second fixed block 234, unclamps lengthening joint 11, and top is driven 1 and risen to initial position.Lower driving assembly 22 drives drill string to continue to creep into.
When the lower end of lengthening joint 11 and the distance continuously between drilling apparatus 2 are greater than drilling rod 8, manipulator 7 is utilized to be moved into by second drilling rod 8 between lengthening joint 11 and continuous drilling apparatus 2, second drilling rod 8 upper end is fixed by back-up tong 6, make the axis of the axis of lengthening joint 11, second drilling rod 8, and the center line of operating walk way 211 is on same straight line.Startup top is driven 1 drive lengthening joint 11 and is rotated, and is connected the upper end of the lower end of lengthening joint 11 with second drilling rod 8.After back-up tong 6 unclamps second drilling rod 8, back-up tong 6 is biased to by hydraulic cylinder on one side.
Top is driven lifting gear and is driven top to drive 1 and move down, and make in second drilling rod 8 update passage 211, brake application plate valve 241 and upper bypass valve 245 are closed, and make the lateral wall of the edge of the through hole on brake application plate valve 241 and second drilling rod 8 be close to conjunction.Then, open blank ram valve 242, close lower bypass valve 244, make port closing under the drilling fluid on operating walk way 211 sidewall, runner switch 91 closes the outlet with outlet under drilling fluid, opens the outlet be communicated with standpipe 94, drilling fluid is entered in the second drilling rod 8 from standpipe 94.4th power source 232 promotes the second fixed block 234 and is fixed by second drilling rod 8, and start the 3rd power source 231 and drive the second rotating disk 233 to rotate, first lifting gear 235 drives the second rotating disk 233 to move down, and is connected the upper end of the lower end of second drilling rod 8 with first drilling rod 8.Be connected simultaneously at second drilling rod 8 with first drilling rod 8, start top and drive 1 and make it turn to and rotating speed, with turning to and synchronization of lower driving assembly 22.4th power source 232 retracts the second fixed block 234 and decontrols second drilling rod 8, opens brake application plate valve 241 and lower flashboard valve 243, and lower driving assembly 22 unclamps first drilling rod 8, and top is driven 1 continuation and driven drill string to creep into downwards.And drilling apparatus 2 rises to lengthening joint 11 place again continuously, prepare next drilling rod 8 is installed, and so forth, until reach predetermined depth, stop creeping into.
Due in above-mentioned process of creeping into, by top drive 1 with the cooperatively interacting of continuous drilling apparatus 2, thus creeping into downwards that drill string is continued.
Two, continuous trip-out process:
The structural representation of the continuous trepan dismounting drilling rod that Fig. 5 provides for the utility model embodiment; As shown in Figure 1, Figure 2 with shown in Fig. 5, when after the degree of depth that drill string reaches default or bit damage need more bit change time, top is driven 1 drive drill string and is moved up, under drive lifting gear and drop to bottom.After the junction of drilling rod 8 drilling rod 8 next with it of the top reaches the position of lifting gear, start the first power source 221 and drive the first rotating disk 223 to rotate, make the first rotating disk 223 turn to rotating speed all with top drive 1 turn to rotating speed consistent.Then, start the second power source 222 and promote the first fixed block 224 and next drilling rod 8 is fixed.Close brake application plate valve 241 and lower flashboard valve 243, brake application plate valve 241 is close to conjunction with the drilling rod 8 of the top, and conjunction is close to by lower flashboard valve 243 and next drilling rod 8, thus makes to form airtight space between brake application plate valve 241 and lower flashboard valve 243.
Open bypass valve 245 and lower bypass valve 244, export under drilling fluid upper outlet on open operation passage 211 sidewall and drilling fluid, runner switch 91 opens the outlet with outlet under drilling fluid, closes the outlet be communicated with standpipe 94, drilling fluid is entered in airtight space.Start the first lifting gear 235 and drive the second rotating disk 233 to move down, start the 4th power source 232 to promote the second fixed block 234 drilling rod 8 of the top is clamped, start the 3rd power source 231 drives the second rotating disk 233 and the second fixed block 234 to rotate simultaneously, first lifting gear 235 drives the second rotating disk 233 to rise, thus is split with next drilling rod 8 by the drilling rod 8 of the top.
In the process that first lifting gear 235 drives the second rotating disk 233 to rise, make the lower end of the drilling rod 8 of the top higher than blank ram valve 242.Blank ram valve 242 is closed, upper bypass valve 245 and brake application plate valve 241 are opened, starting the 4th power source 232 pulls the second fixed block 234 to be unclamped by the drilling rod 8 of the top, top is driven 1 and is taken the drilling rod 8 of the top out of continuous drilling apparatus 2, the rotation of 1 is driven on recycling back-up tong 6 and top, the drilling rod 8 of the top is disassembled from the lower end of lengthening joint 11, and catches drilling rod with manipulator 7, and the drilling rod 8 of the top is shifted out.Meanwhile, continuous drilling apparatus 2 continues to promote drill string.
After the drilling rod 8 of the top is dismantled, top is driven 1 and is dropped to continuous drilling apparatus 2 place, and by the lower end update passage 211 of lengthening joint 11, brake application plate valve 241 and upper bypass valve 245 are closed, and make the lateral wall of the edge of the through hole on brake application plate valve 241 and lengthening joint 11 be close to conjunction.Then, open blank ram valve 242, the lower bypass valve 244 that shutoff operation passage 211 sidewall exports under drilling fluid, runner switch 91 closes the outlet with outlet under drilling fluid, open the outlet be communicated with standpipe 94, drilling fluid is entered in operating walk way 211 from standpipe 94.4th power source 232 promotes the second fixed block 234 and is fixed by lengthening joint 11, and start the 3rd power source 231 and drive the second rotating disk 233 to rotate, first lifting gear 235 drives the second rotating disk 233 to move down, to be connected the upper end of the lower end of lengthening joint 11 with next drilling rod 8.Be connected simultaneously at lengthening joint 11 with next drilling rod 8, start top and drive 1 and make it turn to and rotating speed, with turning to and synchronization of lower driving assembly 22.4th power source 232 retracts the second fixed block 234 and decontrols lengthening joint 11, and lower driving assembly 22 unclamps next drilling rod 8, opens brake application plate valve 241 and lower flashboard valve 243, and top is driven 1 continuation and driven drill string to pull out of hole.And drilling apparatus 2 drops to bottom again continuously, prepare dismounting next drilling rod 8 again, and so forth, until drill string trips out completely.
Last it is noted that above each embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to foregoing embodiments, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of the utility model.
Claims (10)
1. continuous trepan, is characterized in that, comprising: continuously drilling apparatus, under drive lifting gear, top is driven, is pushed up and drive lifting gear, clamping device, drilling fluid feed system, and drives the support of lifting gear for supporting described top;
Described top is driven and is driven lifting gear setting on the bracket by described top, and described top is driven lifting gear and driven for being elevated described top;
Described continuous drilling apparatus is arranged on the below of driving on described top, comprises casing, upper shackle assembly, lower driving assembly and runner and switches assembly;
Be provided with operating walk way in described casing, described operating walk way is the hollow housing of both ends open, and described operating walk way runs through described casing up and down; Described operating walk way is used for being set in outside drilling rod; The sidewall of described housing with described under drive lifting gear and be connected; Drive lifting gear under described to move up and down for driving described casing;
The upper surface of described casing is provided with described upper shackle assembly; Described upper shackle assembly is used for two drilling rods to connect or dismounting;
Described lower driving assembly is arranged on the lower end of described casing, rotates for driving drilling rod;
Described runner switches assembly and is arranged on described operating walk way, and is communicated with described drilling fluid feed system, for providing drilling fluid to drilling rod;
Described clamping device is arranged on the below that described top is driven, and drives between described continuous drilling apparatus for drilling rod being fixed on described top.
2. continuous trepan according to claim 1, is characterized in that, described lower driving assembly comprises the first power source, the first rotating disk, the first fixed block and multiple second power source;
Described first rotating disk is circular, and is positioned at the below of described operating walk way, and itself and described casing are rotationally connected; Described first power source and described first rotating disk are in transmission connection, for driving described first dial rotation;
Described first rotating disk is relatively set with the first fixed block, and all described second power source is in transmission connection each described first fixed block with one, described second power source for promoting described first fixed block, with fixing drilling rod.
3. continuous trepan according to claim 1, is characterized in that, described upper shackle assembly comprises the 3rd power source, the second rotating disk, the first lifting gear, the second fixed block and multiple 4th power source;
Described first lifting gear is arranged on the upper surface of casing, and described 3rd power source and described second rotating disk are all arranged on described first lifting gear;
Described second rotating disk is circular, and is positioned at the top of described operating walk way; Described 3rd power source and described second rotating disk are in transmission connection, for driving described second dial rotation;
Described second rotating disk is relatively set with the second fixed block, and all described 4th power source is in transmission connection each described second fixed block with one, and described 4th power source, for promoting described second fixed block, drives or drilling rod with fixing top.
4. continuous trepan according to claim 1, is characterized in that, described runner switches assembly and comprises brake application plate valve, lower flashboard valve, blank ram valve, lower bypass valve and upper bypass valve;
Described brake application plate valve and described lower flashboard valve include left flashboard and right flashboard; Described left flashboard and described right flashboard are relatively set with semicircular indentations, the through hole of two described semicircular indentations formation for wearing drilling rod;
Described brake application plate valve, described blank ram valve and described lower flashboard valve, along the direction that described operating walk way extends, be successively set on described operating walk way;
On the sidewall of described operating walk way, export under being provided with drilling fluid between described blank ram valve and described lower flashboard valve, under described drilling fluid, outlet is communicated with described drilling fluid feed system, under described drilling fluid, outlet is provided with described lower bypass valve;
On the sidewall of described operating walk way, between described blank ram valve and described brake application plate valve, be provided with drilling fluid upper outlet, described drilling fluid upper outlet is communicated with described drilling fluid feed system, and described drilling fluid upper outlet is provided with described upper bypass valve.
5. continuous trepan according to claim 4, is characterized in that, drilling fluid feed system also comprises slush pump, slurry tank, runner switch and standpipe;
Described slush pump comprises stock inlet and grout outlet; Described stock inlet is communicated with described slurry tank;
Described runner switch comprises an import and two outlets; Described import is communicated with described grout outlet; One end of described standpipe and a described outlet, the other end runs through described top and drives, to carry drilling fluid in drilling rod; Export by outlet under pipeline and described drilling fluid described in another, to carry drilling fluid in described operating walk way; Described drilling fluid upper outlet is communicated with described slurry tank.
6. the continuous trepan according to any one of claim 1-5, is characterized in that, described top is driven lifting gear and comprised: top drive guide rail, top drive coaster and first hoist;
Described support comprises base, the first vertical pole and the first top support;
The lower end of the described first vertical pole is arranged on described base, and described first top support is arranged on the upper end of the described first vertical pole; Described first top support is provided with the first fixed pulley; Drive on described top and be provided with the first movable pulley;
Described top drive guide rail, along the direction that the described first vertical pole extends, is arranged on the described first vertical pole; Described top is driven coaster and is slidably installed on described top drive guide rail; One end winding of the wire rope in described first hoist on described first fixed pulley and described first movable pulley, and is fixedly connected with described first top support;
Described top is driven coaster and is connected with the sidewall that described top is driven, and drives move along described top drive guide rail for driving described top.
7. continuous trepan according to claim 6, is characterized in that, drives lifting gear and comprise under described: under drive guide rail, under drive coaster and lifting hydraulic cylinder;
Described support also comprises the second vertical pole, and the described second vertical pole is parallel with the described first vertical pole; The lower end of the described second vertical pole is arranged on described base;
Drive guide rail under described, along the direction that the described second vertical pole extends, be arranged on the described second vertical pole; Drive under described coaster be slidably installed in described under drive on guide rail; One end of described lifting hydraulic cylinder with described under drive coaster and be connected, the other end is arranged on described base, with make described under drive coaster and move along driving guide rail under described;
Driving coaster under described to be connected with described continuous drilling apparatus, moving along driving guide rail under described for driving described continuous drilling apparatus.
8. the continuous trepan according to any one of claim 7, is characterized in that, described clamping device comprises a pair manipulator and frame;
A described manipulator is arranged on described frame upper end, and manipulator described in another is arranged on the lower end of described frame; Described frame is arranged on described base, for by drilling rod shift-in or shift out described top and drive between described continuous drilling apparatus.
9. the continuous trepan according to any one of claim 1-5, is characterized in that, described clamping device also comprises back-up tong and hydraulic cylinder;
Described back-up tong is provided with connecting rod; One end of described connecting rod is connected with described back-up tong, and the other end and described top turn and be dynamically connected; One end of described hydraulic cylinder and described top turn and are dynamically connected, and the other end and described connecting rod are rotationally connected; Described hydraulic cylinder is used for mobile described connecting rod.
10. the continuous trepan according to any one of claim 1-5, is characterized in that, the lower end that described top is driven is provided with lengthening joint; Described lengthening joint is used for being connected with drilling rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420804993.3U CN204457423U (en) | 2014-12-17 | 2014-12-17 | Continuous trepan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420804993.3U CN204457423U (en) | 2014-12-17 | 2014-12-17 | Continuous trepan |
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| Publication Number | Publication Date |
|---|---|
| CN204457423U true CN204457423U (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420804993.3U Withdrawn - After Issue CN204457423U (en) | 2014-12-17 | 2014-12-17 | Continuous trepan |
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| CN (1) | CN204457423U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104453708A (en) * | 2014-12-17 | 2015-03-25 | 王帆 | Continuous well drill |
| CN114991655A (en) * | 2022-06-20 | 2022-09-02 | 中国矿业大学 | Deep large-diameter annular well drilling system and working method |
-
2014
- 2014-12-17 CN CN201420804993.3U patent/CN204457423U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104453708A (en) * | 2014-12-17 | 2015-03-25 | 王帆 | Continuous well drill |
| CN114991655A (en) * | 2022-06-20 | 2022-09-02 | 中国矿业大学 | Deep large-diameter annular well drilling system and working method |
| CN114991655B (en) * | 2022-06-20 | 2023-01-13 | 中国矿业大学 | Deep large-diameter annular well drilling system and working method |
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