CN204476279U - The multistage borehole-enlarging drilling tool of the bionical nozzle of a kind of build-in - Google Patents
The multistage borehole-enlarging drilling tool of the bionical nozzle of a kind of build-in Download PDFInfo
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- CN204476279U CN204476279U CN201520127992.4U CN201520127992U CN204476279U CN 204476279 U CN204476279 U CN 204476279U CN 201520127992 U CN201520127992 U CN 201520127992U CN 204476279 U CN204476279 U CN 204476279U
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Abstract
The utility model relates to the multistage borehole-enlarging drilling tool of the bionical nozzle of a kind of build-in, and it comprises reaming guider, multistage reamer, impactor; One end and the reaming guider of multistage reamer are tightly connected, and the other end and impactor are tightly connected; Multistage reamer comprises drill body, cutting ring; Drill body inside is provided with central passage; Cutting ring is set to multistage and is arranged on the middle part of drill body; Every grade of cutting ring is formed by multiple cutting unit is circumferentially uniform; Through hole is provided with between cutting unit adjacent in every grade of cutting ring; The port of export of a through hole is had at least to be provided with bionical nozzle.The beneficial effects of the utility model are: high-pressure spray spray at a high speed from bottom nozzle and some bionical jet expansions respectively at the bottom of hole and the Rock And Soil of hole wall carry out that advanced erosion is broken to be realized reaming with minor bottom cutting teeth and multistage reamer and creep into, effectively can promote efficiency, cooling cutting teeth and cutting element that reaming is crept into, and improve the eliminating effect etc. of landwaste in hole.
Description
Technical field
The utility model relates to the multistage borehole-enlarging drilling tool of the bionical nozzle of a kind of build-in.
Background technology
Slip casting (Injection Grout), be also called grouting (Grouting), it uses in force feed equipment (as grouting pump etc.) gap that the slurries configured according to a certain percentage by some materials are poured into geologic body (Rock And Soil) structural plane or hole, and make it spread, gelling or solidification to be to reach the object of reinforcing geologic body (Rock And Soil) or impervious leakage-stopping.Slip casting can be divided into the large class of static pressure grouting and high pressure jet grouting two according to grouting pressure, has been widely used in all many-sides such as the rock-reinforcing antiseepage of the engineering fields such as water conservancy and hydropower, mine, traffic, building and geological hazard control at present.For mortar depositing construction, anchor pole/anchor cable construction, bored pile construction, and the exploration of gas hydrates, oil shale, shale gas, oil/gas, underground water etc. or exploitation, the first step of the technological process usually taked is all the hole (well) being drilled to certain specification on request, thus for follow-uply injecting slurries in Rock And Soil, insert anchor bar/anchor cable, transfer reinforcing cage and build pile, or under enter suitable exploration or Mining Equipment etc. and prepare.In the process implementing boring, sometimes may because of some unpredictable factors (as: causing occurring Borehole Diameter, caving in because brill chance bad ground makes hole wall unstable); Or due to the requirement of Party A's temporary changes drilling design, in order to meet the drilling design requirement that Party A proposes, just need the path boring to being previously drilled to carry out reaming to increase its aperture, this just need to use reamer (or being called reaming bit) and with it suitable reaming creep into process.The reaming drilling method of current employing, mainly to rely on rig to drive drilling tool pivotal mode to carry out ream operation, the Cutting Rock ability of the drilling efficiency that the method obtains and existing reamer is all limited.
Utility model content
Technical problem to be solved in the utility model is to provide the multistage borehole-enlarging drilling tool of the bionical nozzle of a kind of build-in, solves the deficiencies in the prior art.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: the multistage borehole-enlarging drilling tool of the bionical nozzle of a kind of build-in, and it comprises reaming guider, multistage reamer and impactor; One end of described multistage reamer is connected by thread seal with between one end of described reaming guider, and the other end of described multistage reamer is connected by thread seal with between one end of described impactor; Described multistage reamer comprises drill body, cutting ring; Described drill body inside is provided with the central passage of through whole described drill body; Described cutting ring is set to multistage (multilayer), and multistage described cutting ring is arranged on the middle part of described drill body, and the cutting diameter of multistage described cutting ring successively decreases along the direction of ream operation; Multiple cutting units that every grade of described cutting ring is evenly laid by the circumference along described drill body form; The skewed through hole having mud jacking liquid to discharge for constantly being circulated in direct circulation mode described drill body inside is provided with between described cutting unit adjacent in every grade of described cutting ring; The port of export build-in of a described through hole is had at least to have bionical nozzle.
The beneficial effects of the utility model are: the high-pressure spray that spray at a high speed from bottom nozzle and several bionical jet expansions can be utilized to carry out the Rock And Soil be at the bottom of hole and arround hole wall respectively, and (in advance) erosion is in advance broken to be realized reaming with minor bottom cutting teeth and multistage reamer and creep into simultaneously, the operating efficiency, cooling cutting teeth and the cutting element that effectively promote reaming and creep into can be reached, and improve the multipurpose such as eliminating effect of landwaste in hole.
Further: described reaming guider comprises reaming guider steel body, sidewall gauge teeth and bottom cutting teeth; Described sidewall gauge teeth build-in is on the side wall surface of described reaming guider steel body; Described bottom cutting teeth build-in is on the bottom surface of described reaming guider steel body away from described multistage reamer.
Further: the inside of described reaming guider is provided with the center slurries runner be connected with the central passage of described drill body; The inner lower position away from described multistage reamer of described reaming guider is provided with the bottom nozzle be connected with described center slurries runner.
Further: aperture 5 to the 20mm less of the aperture of described bionical jet expansion of described bottom nozzle outlet.
Further: described cutting unit comprises cutting element, steel body and impregnated with diamond bar; Described steel body is fixed on the periphery outside described drill body; Described cutting element build-in is on described steel body; Described impregnated with diamond bar is arranged on the outside of described steel body.
Further: multistage described cutting ring is the secondary cutting ring near described impactor and the one-level cutting ring near described reaming guider; At a distance of 20 to 70cm between described one-level cutting ring and described secondary cutting ring.
Further: described bionical nozzle and described through hole one-body molded, or described bionical nozzle by the fixed form build-in of screw thread, welding or interference fit in the port of export place of described through hole.
Further: the angle between the axis of described through hole and the axis of described drill body is 30 ° to 60 °.
Further: described impactor is torsion impact device or hydraulic impacter.
Further: the middle part of described bionical nozzle is provided with inner chamber, the internal face of described inner chamber is provided with several bionical annular grooves; The internal face of described inner chamber is evenly provided with several bionical annular grooves; One end of described bionical nozzle is provided with the bionical nozzle entrance with described intracavity inter-connection, the other end of described bionical nozzle is provided with the bionical jet expansion with described intracavity inter-connection, and the diameter of described bionical nozzle entrance is greater than the diameter of described bionical jet expansion.
Accompanying drawing explanation
Fig. 1-1 is the threedimensional model schematic diagram of multistage borehole-enlarging drilling tool entirety when connecting torsion impact device;
Fig. 1-2 is the threedimensional model schematic diagram of multistage borehole-enlarging drilling tool entirety when connecting hydraulic impacter;
Fig. 2-1 is the threedimensional model schematic diagram that when connecting torsion impact device, each isolation of components of multistage borehole-enlarging drilling tool comes;
Fig. 2-2 is the threedimensional model schematic diagram that when connecting hydraulic impacter, each isolation of components of multistage borehole-enlarging drilling tool comes;
Fig. 3-1 is that the threedimensional model axle of multistage reamer body part measures intention;
Fig. 3-2 is the threedimensional model elevation of multistage reamer body part;
Fig. 3-3 is the threedimensional model sectional view of multistage reamer body part;
Fig. 4-1 is that the threedimensional model axle of bionical nozzle measures intention;
Fig. 4-2 is the threedimensional model sectional view of bionical nozzle;
Fig. 5 is that after bionical nozzle is mounted in multistage reamer body part, the complete multistage reamer threedimensional model axle of composition measures intention;
Fig. 6-1 is that the threedimensional model axle of reaming guider measures intention;
Fig. 6-2 is the threedimensional model elevation of reaming guider;
Fig. 6-3 is the threedimensional model sectional view of reaming guider;
In accompanying drawing, the parts representated by each label are as follows:
1, reaming guider; 2, one-level cutting ring; 3, secondary cutting ring; 4, torsion impact device; 5, hydraulic impacter; 6, bionical nozzle; 11, the first connecting thread; 12, reaming guider steel body; 13, bottom nozzle; 121, sidewall gauge teeth; 122, bottom cutting teeth; 131, bottom nozzle entrance; 21, the second connecting thread; 22, one-level cutting unit; 23, one-level through hole; 221, one-level cutting element; 222, one-level steel body; 223, one-level impregnated with diamond bar; 31, the 3rd connecting thread; 32, secondary cutting unit; 33, secondary through hole; 321, secondary cutting element; 322, secondary steel body; 323, secondary impregnated with diamond bar; 61, bionical nozzle entrance; 62, bionical jet expansion; 63, bionical annular groove.
Detailed description of the invention
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
As shown in Fig. 1-1, Fig. 1-2, Fig. 2-1, Fig. 2-2, the multistage borehole-enlarging drilling tool of the bionical nozzle of a kind of build-in involved by the utility model, according to order from top to bottom, be made up of reaming guider 1, multistage reamer and impactor successively, connected by thread seal between them, impactor can select torsion impact device 4 or hydraulic impacter 5, and the torsion impact device 4 connected or hydraulic impacter 5 are any type that specification is suitable.The utility model coupling Alternative reaming drilling method, certainly will effectively can be lifted in Rock And Soil injected hole of constructing, anchor pole/anchor cable hole, drill-pouring stake holes, and the exploratory hole of gas hydrates, oil shale, shale gas, oil/gas, underground water etc. or exploitation hole time the reaming operating efficiency that creeps into.Secondary cutting ring on multistage reamer 3 and one-level cutting ring 2, and the sidewall gauge teeth 121 of build-in on reaming guider 1 and bottom cutting teeth 122 are all turn round arround the broken hole wall of cutting way and the main tool of the hole bed rock soil body.
If connect torsion impact device 4 to implement ream operation, then torsion impact device 4 can be the additional impact twisting force that a whole set of drilling tool continues to provide consistent with drilling tool gyratory directions, its upper end is connected with drill string by screw thread, lower end is connected with multistage reamer by screw thread, so just can in the process implementing ream operation, make multistage reamer and reaming guider 1 when being provided power to drive a whole set of drilling tool to turn round by the rig being positioned over earth's surface and provide suitable the pressure of the drill to carry out ream operation, be continuously them and an extra additional impact twisting force is provided, not only effectively can strengthen the revolution Cutting Rock effect of multistage reamer to Rock And Soil arround existing path borehole wall, also can strengthen the sidewall gauge teeth 121 of build-in on reaming guider 1 and the bottom cutting teeth 122 cutting crushing effect to existing path borehole wall and the hole bed rock soil body simultaneously, the power consumption (energy consumption) of the ream operation equipment such as rig can also be reduced to a certain extent.
If when connection hydraulic impacter 5 carries out ream operation, then hydraulic impacter 5 can be the reciprocating impact load effect that a whole set of drilling tool continues to provide axial, its upper end is connected with drill string by screw thread, lower end is connected with multistage reamer by screw thread, so the ream operation mode of impact rotating detritus just can be realized in the process implementing ream operation, can make to be increased dramatically to the ream operation efficiency of rock, also can play the effect of drill pipe release simultaneously to a certain extent.
Multistage reamer in the utility model, use only the structure of two-stage, can be designed to the structure of more than two-stage according to actual needs.Multistage reamer can realize following object:
1, the one-level cutting ring 2 of the front end path reamer that can take the lead in passes in and out the relatively little boring of a diameter, and the effect of pilot hole can be played in this hole, also has the effect of correcting drilling tool simultaneously.
2, because ream operation finally will expand into a certain large diameter boring, when adopting the multistage reamer designed by the utility model to carry out ream operation, can be regarded as that the large diameter boring that ream operation finally will reach to be decomposed into when several times (number of times of ream operation is identical with the progression of multistage reamer) carry out ream operation individually integrated, the energy consumption of ream operation equipment when the method effectively can reduce a ream operation, promotes the efficiency of ream operation.
3, adopt multistage reamer, carry out cutting the broken scope of freedom to Rock And Soil arround hole wall when effectively can increase reamer ream operation, thus the ream operation efficiency of reamer is significantly improved.
As Fig. 3-1, Fig. 3-2, Fig. 3-3 are depicted as a kind of multistage reamer, it comprises the drill body (drill body inside is provided with the central passage of through whole drill body) of through, the middle part of described drill body is circumferentially provided with two-stage cutting ring, one-level cutting ring 2 and secondary cutting ring 3.The cutting diameter of cutting ring described in two-stage successively decreases along the direction of ream operation, that is: the cutting diameter of the one-level cutting ring 2 of close reaming guider 1 is less than the cutting diameter of the secondary cutting ring 3 away from reaming guider 1.Every grade of described cutting ring is provided with multiple cutting unit (one-level cutting unit 22, secondary cutting unit 32), multiple described cutting unit in every grade of described cutting ring is uniformly distributed circumferentially on the periphery outside described drill body, and the multiple described cutting unit in every grade of described cutting ring forms an annulus around described drill body.The upper end of described drill body is provided with the 3rd connecting thread 31, and the lower end of described drill body is provided with the second connecting thread 21.
It should be noted that: the one-level cutting ring 2 in the multistage reamer involved by the utility model and secondary cutting ring 3 both can have been processed in same drill body structure simultaneously, also after can being processed as two independent drill bodies respectively, then the two is linked together by screw thread or alternate manner.Between one-level cutting ring 2 and secondary cutting ring 3 at intervals, can consider to be decided to be 20 to 70cm.Process for one-level cutting ring 2 and secondary cutting ring 3 simultaneously and on same drill body, the utility model is set forth.
As shown in Figure 5, one-level cutting ring 2 and secondary cutting ring 3 are all the primary structures cutting the kata-rocks soil body, and their center is the structure of through shape.Wherein, one-level cutting ring 2 comprises multiple one-level cutting unit 22, multiple one-level through hole 23 and the bionical nozzle 6 of multiple one-level; Multiple one-level through hole 23 is arranged between two adjacent one-level cutting units 22 respectively; The port of export build-in of each described one-level through hole 23 has a bionical nozzle 6 of one-level.Secondary cutting ring 3 comprises multiple secondary cutting unit 32, multiple secondary through hole 33 and the bionical nozzle 6 of multiple secondary; Multiple secondary through hole 33 is circumferentially arranged between two adjacent secondary cutting units 32 respectively; The port of export build-in of each described secondary through hole 33 has a bionical nozzle 6 of secondary.
It should be noted that: the one-level bionical nozzle 6 of build-in in one-level through hole 23 port of export place and build-in are consistent in the structural shape of the bionical nozzle of secondary 6 at secondary through hole 33 port of export place, but its size should be suitable for mutually with the aperture of corresponding through hole.
As shown in Fig. 4-1, Fig. 4-2, the middle part of described bionical nozzle (the bionical nozzle 6 of one-level, secondary) is provided with inner chamber, the internal face of described inner chamber is provided with several bionical annular grooves 63, preferably: the internal face of described inner chamber is evenly provided with several bionical annular grooves 63 according to certain spacing; One end of described bionical nozzle 6 is provided with the bionical nozzle entrance 61 with described intracavity inter-connection, the other end of described bionical nozzle 6 is provided with the bionical jet expansion 62 with described intracavity inter-connection, and the diameter of described bionical nozzle entrance 61 is greater than the diameter of described bionical jet expansion 62.In addition, for bionical nozzle mentioned in the utility model, be not limited to the structure of bionical nozzle, also can use other nozzle arrangements that can produce high-pressure spray and patterns.
As shown in Figure 5, the bottom of one-level cutting ring 2 is tightly connected with reaming guider 1 by the second connecting thread 21; Middle part is the reamer body part of ring-type, primarily of several one-level cutting units 22 and one-level through hole 23 circumferentially uniform formation, one-level cutting unit 22 is wherein the primary structures cutting Rock And Soil arround broken hole wall, and it is made up of one-level cutting element 221, one-level steel body 222 and one-level impregnated with diamond bar 223.One-level cutting element 221 build-in forms the main body of cutting unit in one-level steel body 222, drilling tool pivotal direction when the arrangement mode of one-level cutting element 221 that the utility model adopts depends on ream operation, namely the front (cutting face) of one-level cutting element 221 is towards should be consistent with the pivotal direction of drilling tool.One-level impregnated with diamond bar 223 is mounted in the gauge of outside for holing of one-level steel body 222.One-level through hole 23 is laid between two adjacent one-level cutting units 22 equably, one-level through hole 23 is the through shape inclined hole of 30 ° to 60 °, the number of one-level through hole 23 is consistent with the number of one-level cutting unit 22, also as required the number of one-level through hole 23 can be set to the number being less than one-level cutting unit 22.The bionical nozzle of one-level 6 is by the mode build-in of screw thread, welding or interference fit in the port of export place of one-level through hole 23, and the number of the bionical nozzle of one-level 6 is consistent with the number of one-level through hole 23.Can consider that one-level cutting element 221 adopts PDC material to make, but be not limited to this, other material being suitable for cutting the kata-rocks soil body such as CBN, Si Lawujiqi, TSP, PCD also can be adopted to make.
Upper surface 20 to the 70cm of the lower surface distance one-level cutting ring 2 of secondary cutting ring 3, main part in the middle part of it is the structure of ring-type, its diameter is greater than one-level cutting ring 2, concrete difference in diameter needs creep into into the diameter of boring according to for reaming and determine, and can consider the twice of the diameter (external diameter) diameter of secondary cutting ring 3 (external diameter) being set to one-level cutting ring 2.The mid-section body part of secondary cutting ring 3 is primarily of several secondary cutting units 32 and secondary through hole 33 circumferentially uniform formation, secondary cutting unit 32 is wherein the primary structures cutting Rock And Soil arround broken hole wall, it is by secondary cutting element 321, secondary steel body 322 and secondary impregnated with diamond bar 323 are formed, secondary cutting element 321 build-in forms the main body of cutting unit in secondary steel body 322, drilling tool pivotal direction when the arrangement mode of secondary cutting element 321 that the utility model adopts depends on ream operation, namely the front (cutting face) of secondary cutting element 321 is towards should be consistent with the pivotal direction of drilling tool.Secondary impregnated with diamond bar 323 is mounted in the gauge of outside for holing of secondary steel body 322.Secondary through hole 33 is laid between two adjacent secondary cutting units 32 equably, secondary through hole 33 is the through shape inclined hole of 30 ° to 60 °, the number of secondary through hole 33 is consistent with the number of secondary cutting unit 32, also as required the number of secondary through hole 33 can be set to the number being less than secondary cutting unit 32.The bionical nozzle of secondary 6 is by the mode build-in of screw thread, welding or interference fit in the port of export place of secondary through hole 33, and the number of the bionical nozzle of secondary 6 is consistent with the number of secondary through hole 33.Can consider that secondary cutting element 321 adopts PDC material to make, but be not limited to this, other material being suitable for cutting the kata-rocks soil body such as CBN, Si Lawujiqi, TSP, PCD also can be adopted to make.
The top of secondary cutting ring 3 is connected with torsion impact device 4 or hydraulic impacter 5 by the 3rd connecting thread 31.When rig provides suitable rotary torque and reaming the pressure of the drill for a whole set of borehole-enlarging drilling tool, one-level cutting ring 2 and secondary cutting ring 3 turn rounds at a high speed and cut Rock And Soil arround broken hole wall and realize reaming and creep under the drive of drill string, while the mud jacking liquid that has that constantly circulates (preferably adopt low solid phase or unfixed phase slurry.Wherein, the low solids mud: refer to clay content (by weight) < 10%, or refer to the mud of clay content (by volume) < 4%; Unfixed phase slurry: refer to and do not add clay, only by the dispersion of organic high molecular polymer and water mixed preparing.) flow into its inner chamber from the bionical nozzle entrance 61 of several bionical nozzles 6 of build-in in one-level cutting ring 2 and secondary cutting ring 3, and by bionical jet expansion 62 at a high speed (being greater than 40m/s) spray forms high pressure (being greater than 10MPa) jet can to carrying out the fragmentation of (in advance) erosion in advance by Rock And Soil arround broken hole wall, creep into the reaming realizing auxiliary one-level cutting ring 2 and secondary cutting ring 3, effectively can promote efficiency when ream operation carries out to Rock And Soil.
As shown in Fig. 6-1, Fig. 6-2, Fig. 6-3, reaming guider 1 is formed primarily of the first connecting thread 11, reaming guider steel body 12, bottom nozzle 13, sidewall gauge teeth 121 and bottom cutting teeth 122.Reaming guider 1 is tightly connected with the second connecting thread 21 of multistage reamer by the first connecting thread 11.Sidewall gauge teeth 121 build-in is on the side wall surface of reaming guider steel body 12, play the effect that the Rock And Soil protruded arround the hole wall of broken existing path boring is cut in revolution, thus reach existing path boring gauge, prevention drilling tool bit freezing, and ensure the objects such as ream operation can carry out smoothly.Bottom cutting teeth 122 build-in is on the bottom surface of reaming guider steel body 12 away from multistage reamer, play revolution and cut effect that is protruding arround the broken hole wall having path boring or the hole bed rock soil body (or landwaste of deposition), reach thing of clearing away the obstacles, ensure the objects such as ream operation can carry out smoothly.
It should be noted that: the aperture that the external diameter of the reaming guider 1 after build-in sidewall gauge teeth 121 should be holed with the existing path that will carry out ream operation is suitable, should not be greater than or cross and be less than its aperture, too large then multistage borehole-enlarging drilling tool cannot enter down in the path boring for ream operation, too small, can occur in the process of ream operation that multistage borehole-enlarging drilling tool is unstable, disorderly shake, and very easily cause the generation of hole deviation or other drilling accidents.The inside of reaming guider 1 is provided with center slurries runner, it is the circulus of hollow, bottom nozzle 13 is processed with in its underpart, the aperture of bottom nozzle entrance 131 is all more much smaller than the aperture of the central passage of upper drill bit body, one-level through hole 23 and secondary through hole 33, in addition, the outlet aperture of bottom nozzle 13 5 to 20mm less of the aperture of bionical jet expansion 62.
The external diameter (comprising the diameter after reaming guider steel body 12 and sidewall gauge teeth 121) being positioned at the reaming guider 1 of a whole set of drilling tool bottom should be more or less the same with the existing path boring aperture for ream operation, when implementing using the utility model to carry out ream operation to existing path boring, reaming guider 1 inserts in existing path boring, the a whole set of drilling tool of correcting can be played to prevent the hole scattering occurred in ream operation process or the effect that other drilling accidents occur, be positioned at the sidewall gauge teeth 121 of reaming guider 1 side and bottom cutting teeth 122 (both them, be the hard alloy blocks of build-in on reaming guider 1 or other are suitable for cutting the material of the kata-rocks soil body) simultaneously, can play that prevention existing path boring in ream operation process may occur respectively due to Borehole Diameter, fall block, to cave in etc. and the generation of the drilling accident such as bit freezing caused, when there is undergauge phenomenon in existing path boring, sidewall gauge teeth 121 can carry out revolution and cut broken to reach the object of gauge to the Rock And Soil arround the path borehole wall that undergauge occurs, and when block appears falling in existing path boring, during the phenomenon such as to cave in, bottom cutting teeth 122 can protrude hole wall to this part or the Rock And Soil accumulated at the bottom of hole carries out revolution cutting fragmentation to avoid the generation of drilling accident, thus ensure carrying out smoothly of ream operation.
Operating principle of the present utility model:
Back and forth aspirated by the slush pump being positioned over earth's surface and make the mud jacking liquid that has constantly circulated flow downward to the bottom nozzle 13 of the reaming guider 1 being positioned at a whole set of drilling tool bottommost along drill string central passage from aperture, because the flow section diameter at bottom nozzle entrance 131 place of reaming guider 1 is than the central passage of the multistage reamer be positioned at above it, the diameter of one-level through hole 23 and secondary through hole 33 is all much smaller, outlet diameter also 5 to the 20mm less of the diameter of bionical jet expansion 62 of the bottom nozzle 13 of the guider of reaming simultaneously 1, when this is with regard to making mud jacking liquid to flow to the bottom nozzle 13 of the reaming guider 1 be positioned at bottom a whole set of drilling tool along the central passage of drilling tool inside from drilling tool top, from the outlet ejection formation high-pressure spray at a high speed of bottom nozzle 13, it is broken that this jet can effectively assist the bottom cutting teeth 122 be positioned on reaming guider 1 to carry out advanced (in advance) erosion to the Rock And Soil be positioned at the bottom of hole (or landwaste of deposition).If pump amount is enough large, owing to being subject to the restriction of the outlet diameter size of the bottom nozzle 13 of reaming guider 1, now there iing mud jacking liquid not spray from the outlet of bottom nozzle 13 completely and in time and form high-pressure spray.Now will inevitably cause the mud jacking liquid that has constantly circulated in drilling tool, in the exit of the bottom nozzle entrance 131 of reaming guider 1 and the bottom nozzle 13 of reaming guider 1, " throttling plugging effect " occurs, making to stay the part that cannot spray at a high speed from the outlet of the bottom nozzle 13 of reaming guider 1 in time in drilling tool has mud jacking liquid the central passage of drilling tool inside, constantly put aside energy and upwards accumulate, until there is the liquid level of mud jacking liquid to reach one-level through hole 23 and secondary through hole 33 place respectively, now constantly circulation and the mud jacking liquid that has be accumulated in the central passage of drilling tool inside will certainly arrive at several bionical nozzle entrance 61 places respectively along the inclined hole (one-level through hole 23 and secondary through hole 33) being machined in several through shapes on multistage reamer, sprayed at a high speed by its outlet after flowing through the inner chamber of several bionical nozzles 6 and form high-pressure spray, this jet can effectively auxiliary multi-stage reamer to will carry out ream operation the boring of existing path hole wall arround Rock And Soil carry out the fragmentation of (in advance) erosion in advance, the cutting element be positioned on multistage reamer can be effectively assisted to complete the previous ream operation being drilled to path boring.
Respectively from the bottom nozzle 13 of reaming guider 1 and the high-pressure spray of several bionical nozzles 6, effectively improve efficiency when using the utility model to carry out ream operation.
The beneficial effects of the utility model:
Utilize the utility model can carry out ream operation to the previous path boring be drilled in Rock And Soil.Can realize torsion impact device 4 combine the efficient revolution Cutting Rock mode of multistage reamer under ream operation, or hydraulic impacter 5 combines the ream operation under the impact rotating detritus mode of multistage reamer; Above-mentionedly be connected to the multistage borehole-enlarging drilling tool after two kinds of different impactors, except the effect effectively promoting ream operation efficiency can be played, the effect of drill pipe release in the energy consumption reducing the ream operation equipment such as rig and ream operation process can also be played to a certain extent simultaneously.
Reaming guider 1 can play the effect of correcting drilling tool, in the holes such as the sidewall gauge teeth 121 of build-in on reaming guider 1 and bottom cutting teeth 122 also can effectively prevent due to Borehole Diameter, fall block, bit freezing that the accident such as to cave in causes, the generation of other accidents, can ensure carrying out smoothly of ream operation.
In addition, the high-pressure spray sprayed at a high speed from bottom nozzle 13 can realize advanced (in advance) erosion of the hole bed rock soil body (or landwaste of deposition) broken, thus effectively the cutting of minor bottom cutting teeth 122 pairs of hole bed rock soil bodys (or landwaste of deposition) is broken, cross flow at the bottom of the hole formed by high-pressure spray also can cool bottom cutting teeth 122, and cross flow simultaneously also helps the eliminating of hole bed rock bits.The high-pressure spray sprayed at a high speed from the outlet of several bionical nozzles 6 can realize advanced (in advance) erosion of Rock And Soil arround hole wall broken, thus effective assisting is positioned at the cutting fragmentation of the cutting element on multistage reamer to Rock And Soil arround hole wall, the cross flow formed by high-pressure spray also can be played cooling cutting element and improve in hole the effect getting rid of landwaste effect.So far, the Alternative ream operation method utilizing the utility model simultaneously can realize multiple method to be coupled, certainly will effectively can be lifted in Rock And Soil injected hole of constructing, anchor pole/anchor cable hole, drill-pouring stake holes, and the exploratory hole of gas hydrates, oil shale, shale gas, oil/gas, underground water etc. or exploitation hole time ream operation efficiency.
In sum, utilize the utility model to realize simultaneously:
1, torsion impact device 4 continues to provide the impact torsion effect consistent with drilling tool gyratory directions, or hydraulic impacter 5 continues to provide axial reciprocating impact load effect, when making to use the utility model to carry out ream operation, the ream operation turning round Cutting Rock mode efficiently can either be realized, the ream operation of impact rotating detritus mode can also be realized simultaneously, the effect of drill pipe release in the energy consumption and ream operation process reducing the ream operation equipment such as rig can also be played in addition to a certain extent.
2, multistage reamer can realize in the mode of multistage reaming the ream operation being drilled to path boring; High-pressure spray can be formed with the continuous circular flow of the mode of direct circulation after several bionical nozzles 6 when there being mud jacking liquid, it is broken that this jet can carry out (in advance) erosion in advance to Rock And Soil arround the hole wall for revolution cutting or impact rotating fragmentation, thus auxiliary multi-stage reamer carries out reaming, the efficiency of effective lifting ream operation, can play the cutting element of cooling settings on multistage reamer in addition and improve landwaste in hole and get rid of the effect of effect.
3, reaming guider 1 can play correcting drilling tool, and effectively prevent due to Borehole Diameter, fall block, unpredictalbe situation such as to cave in and effect that the drilling accidents such as the bit freezing that causes occur, carrying out smoothly of ream operation can be ensured; High-pressure spray can be formed with the continuous circular flow of the mode of direct circulation after bottom nozzle 13 when there being mud jacking liquid, this jet can be broken to carrying out advanced (in advance) erosion for the broken hole bed rock soil body (or landwaste of deposition), at the bottom of minor bottom cutting teeth 122 pairs of holes or protrude the Rock And Soil of hole wall and carry out fragmentation, cooling cutting teeth can be played in addition and improve the effect that hole bed rock bits get rid of effect.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. a multistage borehole-enlarging drilling tool for the bionical nozzle of build-in, is characterized in that: comprise reaming guider, multistage reamer, impactor; One end of described multistage reamer is connected by thread seal with between one end of described reaming guider, and the other end of described multistage reamer is connected by thread seal with between one end of described impactor; Described multistage reamer comprises drill body, cutting ring; Described drill body inside is provided with the central passage of through whole described drill body; Described cutting ring is set to multistage, and multistage described cutting ring is arranged on the middle part of described drill body, and the cutting diameter of multistage described cutting ring successively decreases along the direction of ream operation; Multiple cutting units that every grade of described cutting ring is evenly laid by the circumference along described drill body form;
The skewed through hole having mud jacking liquid to discharge for constantly being circulated in direct circulation mode described drill body inside is provided with between described cutting unit adjacent in every grade of described cutting ring; The port of export build-in of a described through hole is had at least to have bionical nozzle.
2. the multistage borehole-enlarging drilling tool of the bionical nozzle of a kind of build-in according to claim 1, is characterized in that: described reaming guider comprises reaming guider steel body, sidewall gauge teeth and bottom cutting teeth; Described sidewall gauge teeth build-in is on the side wall surface of described reaming guider steel body; Described bottom cutting teeth build-in is on the bottom surface of described reaming guider steel body away from described multistage reamer.
3. the multistage borehole-enlarging drilling tool of the bionical nozzle of a kind of build-in according to claim 2, is characterized in that: the inside of described reaming guider is provided with the center slurries runner be connected with the central passage of described drill body; The inner lower position away from described multistage reamer of described reaming guider is provided with the bottom nozzle be connected with described center slurries runner.
4. the multistage borehole-enlarging drilling tool of the bionical nozzle of a kind of build-in according to claim 3, is characterized in that: aperture 5 to the 20mm less of the aperture of described bionical jet expansion of described bottom nozzle outlet.
5. the multistage borehole-enlarging drilling tool of the bionical nozzle of a kind of build-in according to claim 1, is characterized in that: described cutting unit comprises cutting element, steel body and impregnated with diamond bar; Described steel body is fixed on the periphery outside described drill body; Described cutting element build-in is on described steel body; Described impregnated with diamond bar is arranged on the outside of described steel body.
6. the multistage borehole-enlarging drilling tool of the bionical nozzle of a kind of build-in according to any one of claim 1 to 5, is characterized in that: multistage described cutting ring is the secondary cutting ring near described impactor and the one-level cutting ring near described reaming guider; At a distance of 20 to 70cm between described one-level cutting ring and described secondary cutting ring.
7. the multistage borehole-enlarging drilling tool of the bionical nozzle of a kind of build-in according to claim 6, it is characterized in that: described bionical nozzle and described through hole one-body molded, or described bionical nozzle by the fixed form build-in of screw thread, welding or interference fit in the port of export place of described through hole.
8. the multistage borehole-enlarging drilling tool of the bionical nozzle of a kind of build-in according to claim 6, is characterized in that: the angle between the axis of described through hole and the axis of described drill body is 30 ° to 60 °.
9. the multistage borehole-enlarging drilling tool of the bionical nozzle of a kind of build-in according to claim 6, is characterized in that: described impactor is torsion impact device or hydraulic impacter.
10. the multistage borehole-enlarging drilling tool of the bionical nozzle of a kind of build-in according to any one of claim 1 to 5, it is characterized in that: the middle part of described bionical nozzle is provided with inner chamber, the internal face of described inner chamber is provided with several bionical annular grooves; The internal face of described inner chamber is evenly provided with several bionical annular grooves; One end of described bionical nozzle is provided with the bionical nozzle entrance with described intracavity inter-connection, the other end of described bionical nozzle is provided with the bionical jet expansion with described intracavity inter-connection, and the diameter of described bionical nozzle entrance is greater than the diameter of described bionical jet expansion.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520127992.4U CN204476279U (en) | 2015-03-05 | 2015-03-05 | The multistage borehole-enlarging drilling tool of the bionical nozzle of a kind of build-in |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520127992.4U CN204476279U (en) | 2015-03-05 | 2015-03-05 | The multistage borehole-enlarging drilling tool of the bionical nozzle of a kind of build-in |
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| CN204476279U true CN204476279U (en) | 2015-07-15 |
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| CN201520127992.4U Expired - Fee Related CN204476279U (en) | 2015-03-05 | 2015-03-05 | The multistage borehole-enlarging drilling tool of the bionical nozzle of a kind of build-in |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763343A (en) * | 2015-03-05 | 2015-07-08 | 成都理工大学 | Embedded bionic nozzle type multi-stage hole expanding drilling tool and hole expanding method thereof |
| CN107724962A (en) * | 2017-11-14 | 2018-02-23 | 湖北中煤地质矿业有限公司 | A kind of guiding reaming bit |
| CN108301774A (en) * | 2018-04-09 | 2018-07-20 | 成都百施特金刚石钻头有限公司 | The reamer of cutting tooth uniform fold |
-
2015
- 2015-03-05 CN CN201520127992.4U patent/CN204476279U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763343A (en) * | 2015-03-05 | 2015-07-08 | 成都理工大学 | Embedded bionic nozzle type multi-stage hole expanding drilling tool and hole expanding method thereof |
| CN107724962A (en) * | 2017-11-14 | 2018-02-23 | 湖北中煤地质矿业有限公司 | A kind of guiding reaming bit |
| CN108301774A (en) * | 2018-04-09 | 2018-07-20 | 成都百施特金刚石钻头有限公司 | The reamer of cutting tooth uniform fold |
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