CN202970482U - Knife blade mechanism appropriate for hole opener - Google Patents

Knife blade mechanism appropriate for hole opener Download PDF

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Publication number
CN202970482U
CN202970482U CN 201220648004 CN201220648004U CN202970482U CN 202970482 U CN202970482 U CN 202970482U CN 201220648004 CN201220648004 CN 201220648004 CN 201220648004 U CN201220648004 U CN 201220648004U CN 202970482 U CN202970482 U CN 202970482U
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CN
China
Prior art keywords
wing
operator
reamer
expansion
urceolus
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Active
Application number
CN 201220648004
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Chinese (zh)
Inventor
陈立
付晓平
徐文
胡畔
李伟成
唐聪
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CNPC Chuanqing Drilling Engineering Co Ltd
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CNPC Chuanqing Drilling Engineering Co Ltd
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Priority to CN 201220648004 priority Critical patent/CN202970482U/en
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Publication of CN202970482U publication Critical patent/CN202970482U/en
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Abstract

The utility model discloses a knife blade mechanism appropriate for a hole opener. The knife blade mechanism appropriate for the hole opener is used for a petroleum and gas drilling technology, and belongs to the technical field of designing and manufacturing of down hole tools, and comprises main knife blades and auxiliary knife blades. The number of the main knife blades is two, and the two knife blades are symmetrically placed; the number of the auxiliary knife blades is two, and the two auxiliary knife blades are symmetrically placed; the main knife blades and the auxiliary knife blades are placed in the same circumference; and the outer diameter of the circumference equals to that of an outer barrel of the hole opener. The knife blade mechanism appropriate for the hole opener has contractility, can not be limited by the thickness of the wall of a tool body, and is large in hole reaming size.

Description

Be applicable to the wing mechanism of reamer
Technical field
The utility model relates to a kind of underreamer instrument of drilling well, is applicable to the wing mechanism of reamer when just relating to specifically reaming hole operation in a kind of drilling process, is used for the oil and gas well drilling technology, belongs to the design and manufacturing technology field of downhole tool.
Background technology
In the process of oil/gas drilling operation, in order to be lowered to the convenience of sleeve pipe, perhaps when the brill chance was easy to the stratum of undergauge, the well that is drilled to usually had undergauge in various degree, in this case, just well need to be expanded as the larger well of diameter.Towards deep-well, ultradeep well, and the field such as Well-drilling shifts along with oil/gas drilling, and the problem that drilling well faces is also come more.The reaming hole technology also at development, not only can be used as the instrument of simple expansion well as a kind of important means of processing the drilling well unusual condition, also can be used as to answer the collapse instrument on leakiness stratum of commute, can realize small clearance cementing, reduces drilling cost.The reaming hole technology is exactly to adopt a kind of technology that enlarges well with the brill hole reaming tool.Common reamer mainly comprises two kinds of fixed-wing reamer and movable wing reaming hole cutter devices, the fixed-wing reamer mainly is made of drill bit and reamer wing two parts, because reamer wing is larger than the diameter of drill bit, so can get out the borehole diameter that the well that drill bit is got out expands designing requirement to; The movable wing reamer has two kinds of arm-type and piece formulas, and arm-type reamer is that the reaming hole body is fixed on body by bearing pin, and the reaming hole body can be done the rotation of certain angle around bearing pin, and after the reaming hole body opened, therefore diameter can enlarge well through greater than drill bit and reamer body; The reaming hole body of piece formula reamer is wedge-like substantially, but the reaming hole body is fixed on body, therefore can not rotate, but when needing the stratum of reaming hole, under the effect of hydraulic pressure, the reaming hole body is pushed out body and implements reaming hole.
For example, notice of authorization number is exactly a kind of formula reamer for CN202100198 U; Notice of authorization number for CN201843524 U, CN201778658 U and application publication number be the patent document of 101725322 A disclosed be exactly arm-type reamer.
Above-mentioned prior art can be completed specific reaming hole task, but also there is following deficiency: one, due in drilling process, the flexible of reamer wing easily causes drilling fluid to be easy to enter the joint component of reaming hole body, affect the flexibility ratio of wing, the reamer of fixed-wing is received the restriction of tool body wall thickness, therefore the reaming hole size is less, and self energy high-ranking military officer eye enlarges 25% left and right at most, can not satisfy the demand comprehensively.Two, can not suitably enlarge as required the diameter of reamer reaming hole, the limitation of use is larger.
Summary of the invention
The purpose of this utility model is to overcome the problems referred to above that existing reamer exists, and a kind of wing mechanism that is applicable to reamer is provided, and the utlity model has contractility, can not be subject to the restriction of tool body wall thickness, and the reaming hole size is larger.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of wing mechanism that is applicable to reamer is characterized in that: comprise the operator wing and secondary wing, the described operator wing is identical two of structure, and is symmetrical arranged; Secondary wing is identical two of structure, and is symmetrical arranged; The operator wing and secondary wing are arranged on same circumference, and the external diameter of circumference is identical with the external diameter of reamer urceolus.
Be provided with the expansion orbit that coordinates with expander on the described operator wing and secondary wing, the expansion end of the operator wing is hook solid, and the expansion end of secondary wing is the point of a knife shape.
Described expansion orbit comprises the straight section of indent and is the segmental arc of one with straight section.
The expansion end of the described operator wing is hook solid, and it is trapezoidal that hook solid is, and trapezoidal upper base is the outer end, and the expansion end of two operator wings arranges in opposite directions.
Be provided with stopper slot along extending out direction on the described operator wing and secondary wing, be connected with the locating part that coordinates with stopper slot in stopper slot, described locating part is the wing stop screw.
Employing the utility model has the advantage of:
one, in the utility model, described wing mechanism comprises the operator wing and secondary wing, the described operator wing is identical two of structure, be symmetricly set in the wing groove, secondary wing is identical two of structure, be symmetricly set in the wing groove, the operator wing and secondary wing are arranged on same circumference, and the external diameter of circumference is identical with the external diameter of reamer urceolus, adopt this structure when reamer does not also arrive the position of reaming hole, the wing mechanism that arranges draws in, only have and abovegroundly give certain pressure could to promote power transmission shaft downward, and push the operator wing and secondary wing open, the work of beginning reaming hole, can not affect drillng operation, and adopt four wings, stressed more even, more be conducive to carry out the work of reaming hole, can not be subject to the restriction of tool body wall thickness as fixed reamer, therefore the reaming hole size is larger, surpasses the maximum reaming hole amplitude 25% of fixed reamer, can be good at satisfying on-the-spot needs.
Two, in the utility model, be provided with the expansion orbit that coordinates with the expander of reamer on the described operator wing and secondary wing, the expansion end of the operator wing is hook solid, the expansion end of secondary wing is the point of a knife shape, adopting this structure is to decide by expander size that wing opens, thereby in needs, as long as change corresponding expander, just can suitably enlarge the diameter of reamer reaming hole, and the mode of changing is also very convenient, hook solid coordinates with the point of a knife shape carries out reaming work, has improved reaming operation efficient.
Three, in the utility model, described expansion orbit comprises the straight section of indent and is the segmental arc of one with straight section, before expanding outwardly, expander is positioned on the straight section of indent, the wing mechanism that has guaranteed to arrange draws in, and when expanding outwardly, expander moves on segmental arc, expander coordinates with the expansion orbit of segmental arc realizes the reaming hole operation, is easier to normally carrying out of reaming hole work.
Four, in the utility model, the expansion end of the described operator wing is hook solid, and it is trapezoidal that hook solid is, and trapezoidal upper base is the outer end, and the expansion end of two operator wings arranges in opposite directions, adopts be convenient to the to operate gathering of the wing and expanding outwardly when carrying out the reaming hole operation of this structure.
Five, in the utility model, be provided with stopper slot along extending out direction on the described operator wing and secondary wing, be connected with the locating part that coordinates with stopper slot in stopper slot, described locating part is the wing stop screw, adopt the scope that extends out that this structure is convenient to the tool setting wing mechanism to control, restriction wing unlimited expansion, make after expansion the restriction of wing diameter within the limits prescribed.
Description of drawings
Fig. 1 is the structure for amplifying schematic diagram of the utility model operator wing
Fig. 2 is the structure for amplifying schematic diagram of the secondary wing of the utility model
Fig. 3 is the general assembly schematic diagram of the utility model when being applied in wing in reamer mechanism and extending out
Fig. 4 is the general assembly schematic diagram of the utility model when being applied in wing in reamer mechanism and drawing in
Fig. 5 is the structural representation of Fig. 3 or Fig. 4 axial rotation 90 degree
Fig. 6 is the structural representation of the driving shaft mechanism of reamer
Fig. 7 is the outer tube structure schematic diagram of reamer
Fig. 8 is the cam path structure for amplifying schematic diagram in Fig. 6
Fig. 9 is the radial section schematic diagram of Fig. 8
Figure 10 is B-B face structural representation in Fig. 3
Figure 11 be in Fig. 3 lower end A to structural representation
Be labeled as in figure: 1, power transmission shaft; 2, end cap; 3, packing ring; 4, fixed cover; 5, fixed cover sealing ring; 6, urceolus sealing ring; 7, urceolus; 8, fixing sliding sleeve; 9, connecting pin; 10, back-moving spring; 11, fixed axis; 12, plug sealing ring; 13, cam bit; 14, wing pin; 15, the operator wing; 16, secondary wing; 17, wing stop screw; 18, stop screw packing ring; 19, stopper slot; 20, cam bit screw; 21, fixed axis sealing ring; 22, plug; 23, expansion orbit; 24, spring groove; 25, pin-and-hole; 26, wing groove; 27, wing pin-and-hole; 28, end cap groove; 29, runner; 30, cam path, 31, passage.
The specific embodiment
Embodiment 1
A kind of wing mechanism that is applicable to reamer comprises the operator wing 15 and secondary wing 16, and the described operator wing 15 is identical two of structure, is symmetricly set in wing groove 26, and secondary wing 16 is identical two of structure, is symmetricly set in wing groove 26; The operator wing 15 and secondary wing 16 are arranged on same circumference, and the external diameter of circumference is identical with the external diameter of reamer urceolus 7.The quantity of the operator wing 15 and secondary wing 16 is not limited to this, but as best mode.
In the utility model, be provided with the expansion orbit 23 that coordinates with expander on the described operator wing 15 and secondary wing 16, but be not limited to this mode of expansion orbit, also can adopt other structure of the prior art to realize; The expansion end of the operator wing 15 is hook solid, and the expansion end of secondary wing 16 is the point of a knife shape, and this is best mode for the structure of the operator wing 15 and secondary wing 16, also can adopt similar wing structure of the prior art.
Further, described expansion orbit 23 comprises the straight section of indent and is the segmental arc of one with straight section, and before expanding outwardly, expander is positioned on the straight section of indent, and when expanding outwardly, expander moves on segmental arc.
In the utility model, the expansion end of the described operator wing 15 is hook solid, and it is trapezoidal that hook solid is, and trapezoidal upper base is the outer end, and the expansion end of two operator wings arranges in opposite directions, but is not limited to this shape.
In the utility model, be provided with stopper slot 19 along extending out direction on the described operator wing 15 and secondary wing 16, be fixedly connected with the locating part that is arranged in stopper slot 19 on wing groove 26, locating part and stopper slot coordinate the expansion ratio that wing is extended out to limit, and described locating part is wing stop screw 17.
Embodiment 2
The present embodiment is that the utility model is applied to the detailed description of carrying out in reaming hole.
Reamer, comprise urceolus 7 and wing mechanism, also comprise and being arranged in urceolus 7 and along urceolus 7 driving shaft mechanism and resetting-mechanism that driving shaft mechanism is resetted in axial sliding, described urceolus 7 upper ends are provided with the first hermetically-sealed construction with driving shaft mechanism outer wall fitted seal, the lower end is provided with wing groove 26, the end of urceolus 7 is provided with the second hermetically-sealed construction, wing mechanism is arranged in wing groove 26, be provided with on driving shaft mechanism and drive the expander that wing mechanism expands outwardly, and the inner chamber of driving shaft mechanism is communicated with wing groove 26.
Wherein, described expander is the cam bit 13 that is fixedly installed on driving shaft mechanism, and described cam bit 13 is four, and the expansion orbit 23 with the operator wing 15 and secondary wing 16 coordinates respectively, and expander also is confined to cam bit, and quantity also is not limited to four.
Wherein, described the first hermetically-sealed construction comprises fixed cover 4 and end cap 2, the upper end of urceolus 7 is set to end cap groove 28, fixed cover 4 and end cap 2 are arranged in end cap groove 28, fixed cover 4 is fixed in end cap groove 28 by end cap 2, is provided with the fixed cover sealing ring 5 that coordinates with the driving shaft mechanism outer wall on fixed cover 4.
Wherein, described the second hermetically-sealed construction comprises plug 22 and plug sealing ring 12, and plug 22 is arranged on urceolus 7 bottoms, and plug sealing ring 12 is arranged on urceolus 7 inwalls and plug 22 fitted seal.
Have a plurality of pin-and-holes 25 on described urceolus 7, be provided with connecting pin 9 in pin-and-hole 25, be provided with the fixedly sliding sleeve 8 that coordinates with driving shaft mechanism in urceolus 7, fixedly sliding sleeve 8 is connected with urceolus 7 by connecting pin 9.
Wing groove 26 shapes and the wing mechanism that arrange in described urceolus 7 lower ends are suitable, are provided with the wing pin-and-hole 27 that is connected with wing mechanism in wing groove 26, the described operator wing 15 be connected wing 16 and be connected with wing groove 26 by wing pin 14, wing pin-and-hole 27 respectively.
Wherein, described driving shaft mechanism comprises power transmission shaft 1 and the fixed axis 11 that is fixedly connected with power transmission shaft 1, and power transmission shaft 1 inner chamber is communicated with fixed axis 11 inner chambers; The end that fixed axis 11 is connected with power transmission shaft 1 is provided with urceolus sealing ring 6, urceolus sealing ring 6 and urceolus 7 inwall fitted seal, fixed cover sealing ring 5 and power transmission shaft 1 outer wall fitted seal.
Wherein, the end that described power transmission shaft 1 is connected with fixed axis 11 is provided with passage 31, and passage 31 is communicated with space between urceolus 7 and power transmission shaft 1, and the space is between fixed cover sealing ring 5 and urceolus sealing ring 6.
Wherein, the other end of described fixed axis 11 is provided with cam path 30, and expander is arranged in cam path 30; Be provided with runner 29 and fixed axis sealing ring 21 between cam path 30 and fixed axis 11 ends, fixed axis 11 inner chambers are communicated with by runner 29 with wing groove 26, fixed axis sealing ring 21 and urceolus 7 inwall fitted seal.
Wherein, described resetting-mechanism comprises back-moving spring 10 and spring groove 24, and spring groove 24 is arranged in urceolus 7 inner chambers, and back-moving spring 10 is arranged in spring groove 24 and coordinates with fixed axis 11.
the operating principle of reamer is: in the time of use, upper end of the present utility model is connected on drilling tool, G.I.H, need the well section of reaming hole when arrival after, slush pump increases discharge capacity, sprain to press and cause pump pressure to raise in the down-hole, aboveground pressure promotes power transmission shaft 1 and moves down, power transmission shaft 1 compression reseting spring 10 continues descending, be arranged on that the cam bit 13 of power transmission shaft 1 lower end is descending to be contacted with the segmental arc of the expansion orbit 23 of the operator wing 15 and secondary wing 16 respectively, due to the operator wing 15, the internal diameter of the circumference that secondary wing 16 forms is less than cam bit 13 external diameters, deficiency so that cam bit 13 pass through, so cam bit 13 promotes the operator wing 15 simultaneously and secondary wing 16 is expanded outward, the operator wing 15 and secondary wing 16 are opened, under the drive of rig, continue to creep into, because the operator wing outwards opens, strengthened the diameter of reamer, therefore just can enlarge the diameter of well when creeping into, when needs further enlarge the diameter of well, the utility model is taken out ground, change larger cam bit 13, G.I.H again, and repeat the work progress of above-mentioned reaming hole, because the model of cam bit 13 is larger, therefore when pushing the operator wing 15 and secondary wing 16 open, the opening width of the operator wing 15 and secondary wing 16 will be larger, therefore the diameter that cuts well will be larger, therefore can play the technique effect of further expansion well.
Embodiment 3
The present embodiment is that the utility model is applied to the further description of carrying out in reaming hole.
Urceolus 7 is cylindrical structure, there are wing groove 26 and the wing pin-and-hole 27 that is connected the operator wing 15 and secondary wing 16 in cylindrical lower end, the operator wing 15 and secondary wing 16 are connected in wing groove 26 by wing pin-and-hole 27, there is end cap groove 28 rear end of urceolus 7, end cap 2 after assembling is arranged in end cap groove 28, front end at end cap 2 has fixed cover 4, is provided with fixed cover sealing ring 5 between fixed cover 4 and power transmission shaft 1; Be provided with pin-and-hole 25 and spring groove 24 in the stage casing of urceolus 7, after assembling, by pin-and-hole 25 by connecting pin 9 fixed outer cylinders 7 and fixing sliding sleeve 8; The lower end of power transmission shaft 1 is that the reaming hole end is provided with cam path 30 and runner 29, cam path 30 is used for laying cam bit 13, power transmission shaft 1 is connected with fixed axis 11, the cylindrical of fixed axis 11 is all directions structure, outer surface cover at fixed axis 11 has fixedly sliding sleeve 8, and fixedly sliding sleeve 8 is from all directions shape in cylindrical, and the outer all directions structure of fixed axis 11 matches with the fixing interior all directions structure of sliding sleeve 8, the all directions structure that arranges can play and slide up and down, and makes power transmission shaft 1 to the effect of urceolus 7 transmitting torques.
The passage 31 that arranges on power transmission shaft can make liquid pass through, and can play the long-pending effect of enlarging section, reaches the area that increases power transmission shaft 1 upper pressure, promotes power transmission shaft 1, and cam bit 13 is moved downward, and pushes the operator wing 15, secondary wing 16 open; The runner 29 of lower end can play the effect of cleaning and cooling wing when reaming hole creeps into; Are spring grooves 24 in the lower end of fixed axis 11, are provided with back-moving spring 10; Fixedly be provided with fixed pin holes on sliding sleeve 8 bodies, be used for and being fixedly connected with of urceolus 7; Be fixed with respectively the expansion orbit of 13, one cam bits of four cam bits, 13 corresponding wings on four faces of the lower end of power transmission shaft 1 by cam bit screw 20.
Wing mechanism is made of the operator wing 15 and secondary wing 16, the front end of the operator wing 15 is the hook type shape, curved configuration partly has backward trapezoidal, owing to being symmetrical arranged two operator wings 15, so, the trapezium structure that arranges is when drawing two operator wings 15 in, and two trapezium structures can hold mutually, and the operator wing diameter that reaches after gathering is fully consistent with urceolus.The front end of secondary wing 16 is straight pointed shape, straight pointed shape also has backward trapezoidal, owing to being symmetrical arranged two secondary wings 16, so, the trapezium structure that arranges is when drawing two secondary wings 16 in, two trapezium structures also can hold mutually, and the secondary wing diameter that reaches after gathering is fully consistent with urceolus.The structure of drawing in has a lot, and therefore, the structure of wing mechanism is not limited to this.Be provided with expansion orbit 23 on the operator wing 15 and secondary wing 16, wing pin 14 passes pin-and-hole and the wing pin-and-hole 27 of the operator wing 15, the fixing operator wing 15, and secondary wing 16 carries out same fixing; Two symmetrical installations of the wing 15 of operating, two symmetrical installations of secondary wing 16, when 15 gathering of the later operator wing is installed, the crotch part of the curved configuration part of its front end symmetrical wing of trapezoidal mutual income backward; Also be provided with stopper slot 19 on major and minor wing, be connected with wing stop screw 17 in stopper slot, wing stop screw 17 and stop screw packing ring 18 are fixed the wing limited block, carry out spacing to the operator wing 15 and secondary wing 16, restriction wing unlimited expansion is limited in the diameter range of regulation the wing after expansion.
Embodiment 4
The utility model is applied in reamer, and the assembling sequence of reamer is:
At the urceolus 7 internal thread directions back-moving spring 10 of packing into, then put into fixedly sliding sleeve 8, fixedly sliding sleeve 8 is from all directions shape in cylindrical, the outer all directions structure of fixed axis 11 matches with the fixing interior all directions structure of sliding sleeve 8; Urceolus sealing ring 6 is installed on power transmission shaft 1, after fixed cover 4 is loaded onto fixed cover sealing ring 5, power transmission shaft 1 is put into urceolus 7 from urceolus 7 internal thread directions, place packing ring 3 on urceolus 7 internal thread end faces, put into again end cap 2, end cap 2 to be threaded, is then put into pin-and-hole 25 to connecting pin 9 with urceolus 7.
Four cam bits 13 are installed on respectively in the cam path 30 on four faces of lower end of power transmission shaft 1, then by cam bit screw 20, the pin-and-hole in cam bit 13 and cam path 30 are connected; Plug 22 and power transmission shaft 1 are threaded connection.
Plug 22 is installed on urceolus 7, and plug 22 and urceolus 7 are threaded connection.
Wing pin 14 is passed pin-and-hole and the wing pin-and-hole 27 of the operator wing 15, two symmetrically arranged operator wings 15 are fixed on the lower end of urceolus 7, two symmetrical secondary wings 16 of installing also are fixedly connected with in the same way.
Wing stop screw 17 and stop screw packing ring 18 are installed in the wing groove 26 of urceolus, the operator wing 15 and secondary wing 16 are carried out opening width spacing.

Claims (5)

1. wing mechanism that is applicable to reamer is characterized in that: comprise the operator wing (15) and secondary wing (16), the described operator wing (15) is identical two of structure, and is symmetrical arranged; Secondary wing (15) is identical two of structure, and is symmetrical arranged; The operator wing (15) and secondary wing (16) are arranged on same circumference, and the external diameter of circumference is identical with the external diameter of reamer urceolus.
2. the wing mechanism that is applicable to reamer according to claim 1, it is characterized in that: be provided with the expansion orbit (23) that coordinates with expander on the described operator wing (15) and secondary wing (16), the expansion end of the operator wing (15) is hook solid, and the expansion end of secondary wing (16) is the point of a knife shape.
3. the wing mechanism that is applicable to reamer according to claim 2 is characterized in that: described expansion orbit (23) comprises the straight section of indent and is the segmental arc of one with straight section.
4. according to claim 2 or 3 described wing mechanisms that are applicable to reamer, it is characterized in that: the expansion end of the described operator wing (15) is hook solid, and it is trapezoidal that hook solid is, and trapezoidal upper base is the outer end, and the expansion end of two operator wings arranges in opposite directions.
5. according to claim 2 or 3 described wing mechanisms that are applicable to reamer, it is characterized in that: the described operator wing (15) and secondary wing (16) are upper is provided with stopper slot (19) along extending out direction, and stopper slot is connected with the locating part that coordinates with stopper slot in (19).
CN 201220648004 2012-11-30 2012-11-30 Knife blade mechanism appropriate for hole opener Active CN202970482U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220648004 CN202970482U (en) 2012-11-30 2012-11-30 Knife blade mechanism appropriate for hole opener

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220648004 CN202970482U (en) 2012-11-30 2012-11-30 Knife blade mechanism appropriate for hole opener

Publications (1)

Publication Number Publication Date
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106337655A (en) * 2016-08-19 2017-01-18 李泓胜 Aperture-adjustable PDC drill bit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106337655A (en) * 2016-08-19 2017-01-18 李泓胜 Aperture-adjustable PDC drill bit
CN106337655B (en) * 2016-08-19 2018-05-18 盘锦辽河油田泰成实业有限责任公司 A kind of PDC drill bit of adjustable aperture

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