CN204386474U - Drill-following reamer - Google Patents
Drill-following reamer Download PDFInfo
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- CN204386474U CN204386474U CN201520008958.5U CN201520008958U CN204386474U CN 204386474 U CN204386474 U CN 204386474U CN 201520008958 U CN201520008958 U CN 201520008958U CN 204386474 U CN204386474 U CN 204386474U
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- pushing block
- piston
- drill
- active
- reamer
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Abstract
The utility model provides a kind of drill-following reamer, belongs to drilling equipment field, comprises body etc., and mandrel is set with active piston, the first resetting piston and the second resetting piston from top to bottom successively; Mandrel also comprises return spring, and return spring is between the first resetting piston and the second resetting piston; Active piston circumferentially respectively symmetry be fixedly connected with multiple active pushing block, the first resetting piston is circumferentially fixedly connected with multiple return pushing block, and multiple return pushing block and multiple active pushing block are along the axial one_to_one corresponding of mandrel; Body is circumferentially symmetrically arranged with multiple chute, and corresponding active pushing block and return pushing block are positioned at same chute; Reamer wing assembly is placed in chute, and between active pushing block and return pushing block.This drill-following reamer structure is simple, and working stability is reliable, and stretching out with return of wing body is flexible, safe and reliable.
Description
Technical field
The utility model relates to drilling equipment field, in particular to a kind of drill-following reamer.
Background technology
In recent years, relevant scientific research institutions have carried out many research in reaming while drilling technical field both at home and abroad.There have been the reaming while drilling instrument of comparative maturity in external Ji Jia major oil companies, but due to technical know-how, its key problem in technology is not made known publicly.Some Domestic scientific research institution has also carried out certain research work, but due to the research of reamer and reamer blade be a system engineering, research object is complicated, and research difficulty is large, and expend time in length, and input cost is high, so also very immature technically.
Inventor finds under study for action, and traditional drill-following reamer reaming hole adopts monolateral cutting, and instrument is by force unbalance, and when cutting, reamer moment of torsion is large, working condition is unstable, formation adaptive capacity is poor; Meanwhile, the reamer wing part of traditional drill-following reamer is provided with retraction mechanism by force to be existed because wing can not return and the risk that cannot pull out of hole.
Utility model content
The purpose of this utility model is to provide a kind of drill-following reamer, can not return and the problem of risk that cannot pull out of hole to improve when traditional reaming while drilling wing cuts that reamer moment of torsion is large, cutting effect is poor and to there is wing.
The utility model is achieved in that
The utility model provides a kind of drill-following reamer, comprises body, is inlaid in described intrinsic mandrel and multiple reamer wing assembly,
Described mandrel is set with active piston, the first resetting piston and the second resetting piston from top to bottom successively, and described active piston, described first resetting piston, described second resetting piston and described mandrel are coaxially arranged; Described mandrel also comprises return spring, and described return spring is between described first resetting piston and described second resetting piston;
Described active piston circumferentially symmetry is fixedly connected with multiple active pushing block, and described first resetting piston is circumferentially fixedly connected with multiple return pushing block, and described multiple return pushing block and described multiple active pushing block are along the axial one_to_one corresponding of described mandrel;
Described body is circumferentially symmetrically arranged with multiple chute, and described chute extends along the axis of described body; Corresponding described active pushing block and described return pushing block are positioned at same described chute, and can slide in described chute; Described reamer wing assembly is placed in described chute, and between described active pushing block and described return pushing block.
Preferably, two sidewalls of described chute are respectively arranged with many oblique orbits, and the incline direction of described oblique orbit favours the axis of described body; Described reamer wing assembly comprises wing body, and two sides that described wing body is relative are provided with multiple holding sections of matching with described many oblique orbits.The structure of oblique orbit and holding section is simple, easy to process, and fiting effect is good, slides convenient.
Preferably, described wing body has PDC drill bit.The drill bit that current drilling well is conventional, cutting effect is good, is widely used, low cost of manufacture.
Preferably, described active piston is circumferentially symmetrically arranged with multiple first mounting plane, and described multiple active pushing block one_to_one corresponding is positioned on described multiple first mounting plane.
Preferably, described first resetting piston is circumferentially symmetrically arranged with multiple second mounting plane, and described multiple active pushing block one_to_one corresponding is positioned on described multiple second mounting plane.
Preferably, described mandrel is bolted with union cap (UC) near the end of described second resetting piston.
Preferably, described active pushing block comprises fixed part connected vertically and launched portion, and the end face of described launched portion is provided with inclined-plane, and the incline direction on described inclined-plane is oblique before described reamer wing by the end face of described launched portion; Described active pushing block is also provided with hydrophthalmia, and described hydrophthalmia is communicated with inclined-plane and the bottom surface of described active pushing block.Facilitate the release of described reamer wing, the setting of hydrophthalmia is for cooling wing, and flushing detritus, increases the application life of wing, ensures that after cutting, the quality of the borehole wall is higher.
Preferably, describedly also comprise shear pin with the two-way reamer of brill, described shear pin is fastened on the end of described first resetting piston, and between the first resetting piston and the second resetting piston, for limiting the movement of described first resetting piston.Drill bit movement is to when needing the position of reaming hole, and shear pin is disconnected, and starts to carry out reaming hole action, and what be convenient to control reamer wing stretches out the time.
Preferably, described drill-following reamer also comprises multiple O-ring seals, and described multiple O-ring seals lays respectively at described body and described active piston, described body and described first resetting piston and between described body and described second resetting piston.Be mainly used in static seal and reciprocating movement sealing, good sealing effect, safe and reliable.
Preferably, described drill-following reamer also comprises pressure ball of spraining, and for putting in the cavity of described body, and shutoff is in the end of described mandrel.Wing can be forced to regain by pressure ball of spraining pressure of spraining, thus effectively can improve the problem that reamer wing is obstructed along oblique orbit return.
The beneficial effects of the utility model are:
In sum, the drill-following reamer that the utility model provides, in drilling process, when needing to carry out reaming hole action, active piston setting in motion, drives the active pushing block be fixedly connected on described active piston to move together, thus promote described reamer wing assembly and slide in chute, under the function of reamer wing assembly, radially move while wing body slides, complete the expansion of cutter hub; The return pushing block be connected on described first resetting piston is promoted while described wing body slides, make described first resetting piston compress return spring between described first resetting piston and described second resetting piston, make return spring have elastic potential energy; After reaming hole, described return spring expands outwardly, and described return spring promotes described first resetting piston along sliding near the direction of described active piston, thus promotion wing body is return along described chute.The revert action process of reaming hole action and wing body is smooth, and the structure of whole device is simple, arranges rationally, the situation that after effectively improving drilling well, wing return is obstructed.Described reamer wing assembly is provided with multiple, and is symmetrical arranged along the circumference of body, effectively improves the traditional hilted broadsword wing and cuts by force unbalance, problem that reamer moment of torsion is large.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, be briefly described to the accompanying drawing used required in embodiment below, be to be understood that, the following drawings illustrate only some embodiment of the present utility model, therefore the restriction to scope should be counted as, for those of ordinary skill in the art, under the prerequisite not paying creative work, other relevant accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structure chart of the utility model drill-following reamer;
Fig. 2 is the half sectional view of the utility model drill-following reamer;
Fig. 3 is the structure chart (not being set with body) of the utility model drill-following reamer;
Fig. 4 is the structure chart of the wing body of the utility model drill-following reamer.
Reference numeral gathers:
Body 100, mandrel 101, wing body 102, active piston 103, first resetting piston 104, second resetting piston 105, return spring 106, initiatively pushing block 107, return pushing block 108, chute 109, oblique orbit 110, holding section 111, first mounting plane 112, second mounting plane 113, union cap (UC) 114, hydrophthalmia 115, shear pin 116, O-ring seals 117, to sprain pressure ball 118, baffle plate 119, cone structure 120.
Detailed description of the invention
In recent years, relevant scientific research institutions have carried out many research in reaming while drilling technical field both at home and abroad.There have been the reaming while drilling instrument of comparative maturity in external Ji Jia major oil companies, but due to technical know-how, its key problem in technology is not made known publicly.Some Domestic scientific research institution has also carried out certain research work, but due to the research of reamer and reamer blade be a system engineering, research object is complicated, and research difficulty is large, and expend time in length, and input cost is high, so also very immature technically.
Traditional drill-following reamer kind is more, the topmost problem of existence be reaming hole after wing return be obstructed and cause pulling out of hole, and technology wing return effect more advanced abroad obtains some and improves, but, its cost of manufacture is high, and main technical point is not open, and the scope of application is little.
Given this, the utility model designer devises a kind of reaming while drilling wing, and utilizing return spring to shrink the elastic potential stored is powered first resetting piston, wing after reaming hole is return along chute, the structure of whole device is simple, and vibrational power flow is reasonable, and result of use is good.
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.The assembly of the utility model embodiment describing and illustrate in usual accompanying drawing herein can be arranged with various different configuration and design.Therefore, below to the detailed description of the embodiment of the present utility model provided in the accompanying drawings and the claimed scope of the present utility model of not intended to be limiting, but selected embodiment of the present utility model is only represented.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.
It should be noted that: represent similar terms in similar label and letter accompanying drawing below, therefore, once be defined in an a certain Xiang Yi accompanying drawing, then do not need to define further it and explain in accompanying drawing subsequently.
In description of the present utility model, it should be noted that, term " " center ", " on ", D score, " left side ", " right side ", " vertically ", " level ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, or this utility model product orientation of usually putting or position relationship when using, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that 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 " etc. only for distinguishing description, and can not be interpreted as instruction or hint relative importance.
In description of the present utility model, also it should be noted that, unless otherwise clearly defined and limited, term " setting ", " 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.
Refer to Fig. 1-4, the utility model provides a kind of drill-following reamer, comprises body 100, is inlaid in mandrel 101 in described body 100 and multiple reamer wing assembly.
Described mandrel 101 is set with active piston 103, first resetting piston 104 and the second resetting piston 105 from top to bottom successively, and described active piston 103, described first resetting piston 104, described second resetting piston 105 and described mandrel 101 are coaxially arranged; Described mandrel 101 also comprises return spring 106, and described return spring 106 is between described first resetting piston 104 and described second resetting piston 105;
Described active piston 103 circumferentially symmetry is fixedly connected with multiple active pushing block 107, described first resetting piston 104 is circumferentially fixedly connected with multiple return pushing block 108, and described multiple return pushing block 108 and the axial one_to_one corresponding of described multiple active pushing block 107 along described mandrel 101;
Described body 100 is circumferentially symmetrically arranged with multiple chute 109, and described chute 109 extends along the axis of described body 100; Corresponding described active pushing block 107 and described return pushing block 108 are positioned at same described chute 109, and can slide in described chute 109; Described reamer wing assembly is placed in described chute 109, and between described active pushing block 107 and described return pushing block 108.
The drill-following reamer that the utility model provides, in drilling process, when needing to carry out reaming hole action, active piston 103 setting in motion, drive the active pushing block 107 be fixedly connected on described active piston 103 to move together, thus promote described reamer wing assembly and slide in chute 109, under the function of reamer wing assembly, radially move while wing body 102 slides, complete the expansion of cutter hub; The return pushing block 108 be connected on described first resetting piston 104 is promoted while described wing body 102 slides, make described first resetting piston 104 compress return spring 106 between described first resetting piston 104 and described second resetting piston 105, make return spring 106 have elastic potential energy; After reaming hole, described return spring 106 expands outwardly, and described return spring 106 promotes described first resetting piston 104 and slides along near the direction of described active piston 103, thus promotion wing body 102 is return along described chute 109.The revert action process of reaming hole action and wing body 102 is smooth, and the structure of whole device is simple, arranges rationally, the situation that after effectively improving drilling well, wing return is obstructed.Described reamer wing assembly is provided with multiple, and is symmetrical arranged along the circumference of body 100, effectively improves the traditional hilted broadsword wing and cuts by force unbalance, problem that reamer moment of torsion is large, be preferably set to three.
In the preferred version of above-described embodiment, two sidewalls of described chute 109 are respectively arranged with many oblique orbits 110, and the incline direction of described oblique orbit 110 favours the axis of described body 100; Described reamer wing assembly comprises wing body 102, and two sides that described wing body 102 is relative are provided with multiple holding sections 111 of matching with described many oblique orbits 110.The structure of oblique orbit 110 and holding section 111 is simple, easy to process, and fiting effect is good.When carrying out reaming hole action, described wing body 102 is under the promotion of active pushing block 107, radially move while sliding axially in described chute 109, thus realize the expansion of wing, simultaneously, described return pushing block 108 is connected with multiple baffle plate 119, described multiple baffle plate 119 is set to different length respectively, the baffle plate 119 arranging different length can limit the displacement of described wing body 102 along axis, and then control the distance of radial dilatation of described wing body 102, achieve reducing expansion, practicality is better.
After reaming hole action completes, under the elastic force effect of return spring 106, described wing body 102 radially moves inward in described chute 109 while axial sliding movement, and wing body 102 realizes return.In preferred version preferably, described drill-following reamer also comprises pressure ball 118 of spraining, described pressure ball 118 of spraining is for putting in the cavity of described body 100, and shutoff is in the end of described mandrel 101, this end of mandrel 101 is preferably set to cone structure 120, and this cone structure 120 is positioned at the inside of described mandrel 101.When returning device breaks down or do not get back to preposition, drop into from the end of body 100 pressure ball 118 of spraining, wing can be forced to regain by pressure ball 118 of spraining pressure of spraining, thus effectively can improve the problem that reamer wing is obstructed along oblique orbit 110 return.
In the preferred version of above-described embodiment, state active piston 103 and be circumferentially symmetrically arranged with multiple first mounting plane 112, described multiple active pushing block 107 one_to_one corresponding is positioned on described multiple first mounting plane 112.Be convenient to the installation of described active pushing block 107, meanwhile, be convenient to the position determining described active pushing block 107, and then ensure that uniform force in wing body 102 sliding process, complete reaming hole action smoothly.Further, described first resetting piston 104 is circumferentially symmetrically arranged with multiple second mounting plane 113, described multiple active pushing block 107 one_to_one corresponding is positioned on described multiple second mounting plane 113, second return pushing block 108 easy for installation, installation site is more accurate, is convenient to the return of wing body 102.In the preferred version of this embodiment, described active pushing block 107 comprises fixed part connected vertically and launched portion, and the end face of described launched portion is provided with inclined-plane, and the incline direction on described inclined-plane is oblique before described reamer wing by the end face of described launched portion; Described active pushing block 107 is also provided with hydrophthalmia 115, and described hydrophthalmia 115 is communicated with inclined-plane and the bottom surface of described active pushing block 107.Initiatively the structure of pushing block 107 is simple, low cost of manufacture, is convenient to promote wing body 102 and slides in chute 109, and the setting of hydrophthalmia 115 is for cooling wing, and flushing detritus, increases the application life of wing, ensures that after cutting, the quality of the borehole wall is higher.In order to increase cooling effect, described hydrophthalmia 115 can arrange nozzle.
In the preferred version of above-described embodiment, described mandrel 101 is bolted with union cap (UC) 114 near the end of described second resetting piston 105, and the structure of union cap (UC) 114 is simple, good fixing effect.In actual installation process, be circumferentially symmetrically arranged with four copper molds and four interior hexagonal bleed screws in described union cap (UC) 114 respectively, described copper mold and described soket head cap screw mate one by one, improve the tightness of described union cap (UC) 114.
In the possibility of above-described embodiment, described with brill two-way reamer also comprise shear pin 116, described shear pin 116 is fastened on the end of described first resetting piston 104, and between the first resetting piston 104 and the second resetting piston 105, for limiting the movement of described first resetting piston 104.Hydraulic drive type drill-following reamer strengthens pumpage after being lowered into the well section needing to carry out reaming hole operation, and inside and outside reamer body 100, difference is increased to a certain degree, and shear pin 116 is cut off, and starts to carry out reaming hole action.
In the preferred version of above-described embodiment, described drill-following reamer also comprises multiple O-ring seals 117, and described multiple O-ring seals 117 lays respectively at described body 100 and described active piston 103, described body 100 and described first resetting piston 104 and between described body 100 and described second resetting piston.O-ring seals 117 is mainly used in static seal and reciprocating movement sealing, and good sealing effect is safe and reliable.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.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 drill-following reamer, is characterized in that, comprises body, is inlaid in described intrinsic mandrel and multiple reamer wing assembly,
Described mandrel is set with active piston, the first resetting piston and the second resetting piston from top to bottom successively, and described active piston, described first resetting piston, described second resetting piston and described mandrel are coaxially arranged; Described mandrel also comprises return spring, and described return spring is between described first resetting piston and described second resetting piston;
Described active piston circumferentially symmetry is fixedly connected with multiple active pushing block, and described first resetting piston is circumferentially fixedly connected with multiple return pushing block, and described multiple return pushing block and described multiple active pushing block are along the axial one_to_one corresponding of described mandrel;
Described body is circumferentially symmetrically arranged with multiple chute, and described chute extends along the axis of described body; Corresponding described active pushing block and described return pushing block are positioned at same described chute, and can slide in described chute; Described reamer wing assembly is placed in described chute, and between described active pushing block and described return pushing block.
2. drill-following reamer according to claim 1, is characterized in that, two sidewalls of described chute are respectively arranged with many oblique orbits, and the incline direction of described oblique orbit favours the axis of described body;
Described reamer wing assembly comprises wing body, and two sides that described wing body is relative are provided with multiple holding sections of matching with described many oblique orbits.
3. drill-following reamer according to claim 2, is characterized in that, described wing body has PDC drill bit.
4. drill-following reamer according to claim 2, is characterized in that, described active piston is circumferentially symmetrically arranged with multiple first mounting plane, and described multiple active pushing block one_to_one corresponding is positioned on described multiple first mounting plane.
5. drill-following reamer according to claim 4, is characterized in that, described first resetting piston is circumferentially symmetrically arranged with multiple second mounting plane, and described multiple active pushing block one_to_one corresponding is positioned on described multiple second mounting plane.
6. drill-following reamer according to claim 1, is characterized in that, described mandrel is bolted with union cap (UC) near the end of described second resetting piston.
7. drill-following reamer according to claim 2, it is characterized in that, described active pushing block comprises fixed part connected vertically and launched portion, and the end face of described launched portion is provided with inclined-plane, and the incline direction on described inclined-plane is oblique before described reamer wing by the end face of described launched portion;
Described active pushing block is also provided with hydrophthalmia, and described hydrophthalmia is communicated with inclined-plane and the bottom surface of described active pushing block.
8. drill-following reamer according to claim 1, it is characterized in that, described with brill two-way reamer also comprise shear pin, described shear pin is fastened on the end of described first resetting piston, and between the first resetting piston and the second resetting piston, for limiting the movement of described first resetting piston.
9. drill-following reamer according to claim 1, it is characterized in that, described drill-following reamer also comprises multiple O-ring seals, and described multiple O-ring seals lays respectively at described body and described active piston, described body and described first resetting piston and between described body and described second resetting piston.
10. drill-following reamer according to claim 1, is characterized in that, described drill-following reamer also comprises pressure ball of spraining, and for putting in the cavity of described body, and shutoff is in the end of described mandrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520008958.5U CN204386474U (en) | 2015-01-07 | 2015-01-07 | Drill-following reamer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520008958.5U CN204386474U (en) | 2015-01-07 | 2015-01-07 | Drill-following reamer |
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| Publication Number | Publication Date |
|---|---|
| CN204386474U true CN204386474U (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520008958.5U Expired - Fee Related CN204386474U (en) | 2015-01-07 | 2015-01-07 | Drill-following reamer |
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| CN (1) | CN204386474U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201408A (en) * | 2015-09-06 | 2015-12-30 | 中国石油天然气集团公司 | Near-bit reamer |
| CN108222836A (en) * | 2018-01-03 | 2018-06-29 | 西南石油大学 | A kind of two-way reaming hole drilling tool |
| CN109458135A (en) * | 2018-12-26 | 2019-03-12 | 成都百施特金刚石钻头有限公司 | A kind of delivery reaming while drilling tool assembly |
| CN111322012A (en) * | 2020-03-18 | 2020-06-23 | 长江大学 | Variable-diameter while-drilling reamer and variable-diameter adjusting structure thereof |
-
2015
- 2015-01-07 CN CN201520008958.5U patent/CN204386474U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201408A (en) * | 2015-09-06 | 2015-12-30 | 中国石油天然气集团公司 | Near-bit reamer |
| CN105201408B (en) * | 2015-09-06 | 2017-09-01 | 中国石油天然气集团公司 | A kind of nearly drill bit reamer |
| CN108222836A (en) * | 2018-01-03 | 2018-06-29 | 西南石油大学 | A kind of two-way reaming hole drilling tool |
| CN109458135A (en) * | 2018-12-26 | 2019-03-12 | 成都百施特金刚石钻头有限公司 | A kind of delivery reaming while drilling tool assembly |
| CN109458135B (en) * | 2018-12-26 | 2023-12-22 | 成都百施特金刚石钻头有限公司 | Full-displacement reaming-while-drilling tool assembly |
| CN111322012A (en) * | 2020-03-18 | 2020-06-23 | 长江大学 | Variable-diameter while-drilling reamer and variable-diameter adjusting structure thereof |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150610 Termination date: 20170107 |
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| CF01 | Termination of patent right due to non-payment of annual fee |