CN203531815U - Staged vibrating tool for horizontal well - Google Patents
Staged vibrating tool for horizontal well Download PDFInfo
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- CN203531815U CN203531815U CN201320737041.XU CN201320737041U CN203531815U CN 203531815 U CN203531815 U CN 203531815U CN 201320737041 U CN201320737041 U CN 201320737041U CN 203531815 U CN203531815 U CN 203531815U
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- 238000005553 drilling Methods 0.000 claims abstract description 9
- 238000012856 packing Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000000712 assembly Effects 0.000 abstract description 3
- 238000000429 assembly Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Abstract
The utility model relates to a vibrating tool, particularly to a staged vibrating tool for a horizontal well. The staged vibrating tool consists of a screw motor assembly, a cardan shaft assembly, a quick-connection radial vibrating assembly and a drill rod joint sequentially from top to bottom, wherein the screw motor assembly comprises a stator and a rotor; the cardan shaft assembly comprises a cardan shaft casing and a ball type cardan shaft assembly; the quick-connection radial vibrating assembly comprises a gasket, an upper nut, an upper radial bearing, an adjustable pad, a thrust bearing pack, a vibrating shaft, a lower radial bearing, a lower nut, a screw and a vibrating case; and an interstage connecting assembly comprises a connecting case and a connecting shaft. One or more quick-connection radial vibrating assemblies can be connected through the interstage connecting assembly to form a two-stage or multi-stage vibrating tool, so that the rotational inertia of the tool can be increased, and the vibrating effect with a larger amplitude can be further obtained. The connecting process is reliable and convenient and can be realized on a drilling platform of a wellhead.
Description
Technical field
The utility model relates to a kind of vibratory tool, is a kind of horizontal well classification vibratory tool that can produce the radial vibration of certain frequency and amplitude in drilling process specifically.
Background technology
Horizontal well is due to the feature of its well track, in drilling process, net horizontal section place, drilling rod can be close to the borehole wall, and because drilling rod and the borehole wall move mutually, this has just caused very large frictional resistance, had a strong impact on the transmission of the pressure of the drill, accelerate drill rod abrasion, had a strong impact on bit speed, be also unfavorable for the discharge of landwaste.
Utility model content
The shortcoming existing in order to overcome above-mentioned prior art, the purpose of this utility model is to provide a kind of horizontal well classification vibratory tool, and it can be applicable to various well depths, slows down the wearing and tearing of drilling rod, reduces the frictional resistance in creeping into, and improves mechanical rate of penetration.
In order to address the above problem, the utility model is by the following technical solutions: a kind of horizontal well classification vibratory tool, it is characterized in that, comprise screw motor assembly, universal drive shaft assembly, connect radial vibration assembly, inter-stage connecting assembly and tool joint soon, its structure is followed successively by from top to bottom screw motor assembly, universal drive shaft assembly, connects radial vibration assembly and tool joint soon, the described radial vibration assembly that connects soon can be one-level and also can connect multistage, every grade connects soon between radial vibration assembly and connects by described inter-stage connecting assembly
Described screw motor assembly comprises stator and rotor, and the upper end of described screw motor assembly is connected with the drilling rod of its top by upper crossover sub,
Described universal drive shaft assembly comprises universal drive shaft shell and ball formula universal drive shaft assembly, and the upper end of the lower end of described stator and described universal drive shaft shell is threaded connection, and described rotor lower end and described ball formula universal drive shaft assembly are threaded connection,
Connect soon radial vibration assembly and comprise packing ring, top nut, upper journal bearing, adjusting pad, thrust bearings, vibrating shaft, lower radial bearing, lower nut, screw and vibration housing, described vibrating shaft is eccentric shaft, during rotation, can produce rotational vibration, the lower end of described ball formula universal drive shaft assembly is connected with the upper end of vibrating shaft, the lower end of universal drive shaft shell is threaded connection with the upper end of vibration housing
Described inter-stage connecting assembly comprises connection housing and connecting axle, inter-stage connecting assembly is located at two-stage and connects soon between radial vibration assembly, the lower end of the upper end of described connection housing and upper level vibration housing is threaded connection, the upper end of described connecting axle is connected with the lower end of the vibrating shaft of upper level, the upper end of the lower end of connection housing and next stage vibration housing is threaded connection, the lower end of connecting axle is connected with the upper end of the vibrating shaft of next stage, and described tool joint is threaded connection with vibration housing.
Further: the lower end of described ball formula universal drive shaft assembly is six sides with the upper end of vibrating shaft and the lower end of described vibrating shaft with the connected mode of the upper end of connecting axle and is connected, the lower end of ball formula connecting axle of ball formula universal drive shaft assembly and the upper end of connecting axle are the wide shapes of interior six square wheels, the wide shape of outer six square wheels that the wide shape of interior six square wheels of the lower end that the upper end of described vibrating shaft is the ball formula connecting axle with ball formula universal drive shaft assembly matches, the wide shape of outer six square wheels that the wide shape of interior six square wheels that the lower end of vibrating shaft is the upper end with connecting axle matches.
Further: the upper end of vibrating shaft is socketed with packing ring, top nut, upper journal bearing, adjusting pad and thrust bearings from top to bottom successively, the lower end of vibrating shaft is socketed with lower nut, lower radial bearing 13 from the bottom up successively, is the eccentric part of vibrating shaft between described thrust bearings and lower radial bearing.
Further: described lower nut week is upwards cut open slot, is connected by screw the entity at open slot two ends.
Further: described upper journal bearing and lower radial bearing are sliding bearing.
The beneficial effects of the utility model are:
1, to have realized well head adjustable for vibration parameters.Vibration parameters of the present utility model is determined by the quantity that connects soon radial vibration assembly.Different according to hole condition, what connect soon that radial vibration assembly can connect some by inter-stage connecting assembly connects radial vibration assembly soon, at well head, can connect, connect reliable, convenient and swift, and number of connection is unrestricted, thus played the effect of adjusting vibration parameters.
2, in the course of work, between part, be difficult for getting loose.Such instrument, due to the operating characteristic of its vibration, easily causes that vibrating shaft two ends connect loosening.The connected mode that vibrating shaft of the present utility model two ends adopt six sides to connect, this connected mode is that gap connects, and can not cause because of the existence in gap the inefficacy of transmission.
3, long service life.The flimsy part of such instrument is the bearing that bears radial direction power.Upper journal bearing and lower radial bearing that the utility model bears radial direction power are sliding bearing, and be the several times of rolling bearing application life.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described further:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the enlarged drawing of I in Fig. 1;
Fig. 3 is the sectional view of A-A in Fig. 1;
Fig. 4 is the front view of lower nut;
Fig. 5 is the left view of lower nut;
In figure: 1 stator, 2 rotors, 3 universal drive shaft shells, 4 ball formula universal drive shaft assemblies, 5 packing rings, 6 top nuts, journal bearing on 7,8 open slots, 9 adjusting pads, 10 thrust bearings, 11 vibration housings, 12 vibrating shafts, 13 lower radial bearings, 14 tool joints, 15 lower nuts, 16 screws, 17 connect housing.
The specific embodiment
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of horizontal well classification vibratory tool, comprise screw motor assembly, universal drive shaft assembly, connect radial vibration assembly, inter-stage connecting assembly and tool joint 14 soon, its structure is followed successively by from top to bottom screw motor assembly, universal drive shaft assembly, connects radial vibration assembly and tool joint 14 soon, the described radial vibration assembly that connects soon can be one-level and also can connect multistagely, and every grade connects soon between radial vibration assembly and connects by described inter-stage connecting assembly.It is adjustable that vibration parameters has been realized well head.Vibration parameters of the present utility model is determined by the quantity that connects soon radial vibration assembly.It is adjustable that vibration parameters has been realized well head, different according to hole condition, what connect soon that radial vibration assembly can connect some by inter-stage connecting assembly connects radial vibration assembly soon, at well head, can connect, connect reliable, convenient and swift, and number of connection is unrestricted, thus play the effect of adjusting vibration parameters.
Described screw motor assembly comprises stator 1 and rotor 2, and the upper end of described screw motor assembly is connected with the drilling rod of its top by upper crossover sub,
Described universal drive shaft assembly comprises universal drive shaft shell 3 and ball formula universal drive shaft assembly 4, and the upper end of the lower end of described stator 1 and described universal drive shaft shell 3 is threaded connection, and described rotor 2 lower ends and described ball formula universal drive shaft assembly 4 are threaded connection.
Connect soon radial vibration assembly and comprise packing ring 5, top nut 6, upper journal bearing 7, adjusting pad 9, thrust bearings 10, vibrating shaft 12, lower radial bearing 13, lower nut 15, screw 16 and vibration housing 11, described vibrating shaft 12 is eccentric shafts, during rotation, can produce rotational vibration, the lower end of described ball formula universal drive shaft assembly 4 is connected with the upper end of vibrating shaft 12, and the lower end of universal drive shaft shell 4 is threaded connection with the upper end of vibration housing 11.
Described inter-stage connecting assembly comprises connection housing 17 and connecting axle 18, inter-stage connecting assembly is located at two-stage and connects soon between radial vibration assembly, the lower end of the upper end of described connection housing 17 and upper level vibration housing is threaded connection, the described upper end of connecting axle 18 and the lower end of the vibrating shaft of upper level 12 are connected, the upper end of the lower end of connection housing 17 and next stage vibration housing 11 is threaded connection, the lower end of connecting axle 18 is connected with the upper end of the vibrating shaft of next stage 12, and described tool joint 14 is threaded connection with vibration housing 11.
The lower end of described ball formula universal drive shaft assembly 4 is six sides with the upper end of vibrating shaft 12 and the lower end of described vibrating shaft 12 with the connected mode of the upper end of connecting axle 18 and is connected, the lower end of ball formula connecting axle of ball formula universal drive shaft assembly 4 and the upper end of connecting axle 18 are the wide shapes of interior six square wheels, the wide shape of outer six square wheels that the wide shape of interior six square wheels of the lower end that the upper end of described vibrating shaft 12 is the ball formula connecting axle with ball formula universal drive shaft assembly 4 matches, the wide shape of outer six square wheels that the wide shape of interior six square wheels that the lower end of vibrating shaft 12 is the upper end with connecting axle 18 matches.
The upper end of vibrating shaft 12 is socketed with packing ring 5, top nut 6, upper journal bearing 7, adjusting pad 9 and thrust bearings 10 from top to bottom successively, the lower end of vibrating shaft 12 is socketed with lower nut 15, lower radial bearing 13 from the bottom up successively, between described thrust bearings 10 and lower radial bearing 13, is the eccentric part of vibrating shaft 12.Described upper journal bearing 7 and lower radial bearing 13 are sliding bearing.
As shown in Figure 4 and Figure 5, described lower nut upwards cuts open slot 8 for 15 weeks, by the entity at screw 16 connection opening groove 8 two ends.Cause lower nut 15 elastic deformations, effectively prevented the loosening of lower nut 15.
When mud passes through motor assembly, can drive the rotor 2 in motor assembly to do planetary motion, the planetary motion of rotor 2 is transformed into fixed-axis rotation by ball formula universal drive shaft assembly 4, pass to the vibrating shaft with certain dynamic moment of inertia 12 connecing soon in radial vibration assembly, vibrating shaft 12 rotates and produces radial vibration, and then drives whole instrument vibration.
Darker when running into well depth, during the larger situation of hole angle, can pass through inter-stage connecting assembly, connect again one or more radial vibration assemblies that connect soon, form secondary or multistage vibratory tool, to increase the dynamic moment of inertia of this instrument, and then obtain the more vibrating effect of large amplitude.Connection procedure is convenient and reliable, at well head offshore boring island, can realize.
Claims (5)
1. a horizontal well classification vibratory tool, it is characterized in that, comprise screw motor assembly, universal drive shaft assembly, connect radial vibration assembly, inter-stage connecting assembly and tool joint soon, its structure is followed successively by from top to bottom screw motor assembly, universal drive shaft assembly, connects radial vibration assembly and tool joint soon, the described radial vibration assembly that connects soon can be one-level and also can connect multistage, every grade connects soon between radial vibration assembly and connects by described inter-stage connecting assembly
Described screw motor assembly comprises stator and rotor, and the upper end of described screw motor assembly is connected with the drilling rod of its top by upper crossover sub,
Described universal drive shaft assembly comprises universal drive shaft shell and ball formula universal drive shaft assembly, and the upper end of the lower end of described stator and described universal drive shaft shell is threaded connection, and described rotor lower end and described ball formula universal drive shaft assembly are threaded connection,
Connect soon radial vibration assembly and comprise packing ring, top nut, upper radial axle, adjusting pad, thrust bearings, vibrating shaft, lower radial bearing, lower nut, screw and vibration housing, described vibrating shaft is eccentric shaft, during rotation, can produce rotational vibration, the lower end of described ball formula universal drive shaft assembly is connected with the upper end of vibrating shaft, the lower end of universal drive shaft shell is threaded connection with the upper end of vibration housing
Described inter-stage connecting assembly comprises connection housing and connecting axle, inter-stage connecting assembly is located at two-stage and connects soon between radial vibration assembly, the lower end of the upper end of described connection housing and upper level vibration housing is threaded connection, the upper end of described connecting axle is connected with the lower end of the vibrating shaft of upper level, the upper end end of the lower end of connection housing and next stage vibration housing is threaded connection, the lower end of connecting axle is connected with the upper end of the vibrating shaft of next stage, and described tool joint is threaded connection with vibration housing.
2. a kind of horizontal well classification vibratory tool according to claim 1, it is characterized in that, the lower end of described ball formula universal drive shaft assembly is six sides with the upper end of vibrating shaft and the lower end of described vibrating shaft with the connected mode of the upper end of connecting axle and is connected, the lower end of ball formula connecting axle of ball formula universal drive shaft assembly and the upper end of connecting axle are the wide shapes of interior six square wheels, the wide shape of outer six square wheels that the wide shape of interior six square wheels of the lower end that the upper end of described vibrating shaft is the ball formula connecting axle with ball formula universal drive shaft assembly matches, the wide shape of outer six square wheels that the wide shape of interior six square wheels that the lower end of vibrating shaft is the upper end with connecting axle matches.
3. a kind of horizontal well classification vibratory tool according to claim 1 and 2, it is characterized in that, the upper end of vibrating shaft is socketed with packing ring, top nut, upper journal bearing, adjusting pad and thrust bearings from top to bottom successively, the lower end of vibrating shaft is socketed with lower nut, lower radial bearing (13) from the bottom up successively, is the eccentric part of vibrating shaft between described thrust bearings and lower radial bearing.
4. a kind of horizontal well classification vibratory tool according to claim 3, is characterized in that, described lower nut week is upwards cut open slot, is connected by screw the entity at open slot two ends.
5. a kind of horizontal well classification vibratory tool according to claim 4, is characterized in that, described upper journal bearing and lower radial bearing are sliding bearing.
Priority Applications (1)
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CN201320737041.XU CN203531815U (en) | 2013-11-20 | 2013-11-20 | Staged vibrating tool for horizontal well |
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CN201320737041.XU CN203531815U (en) | 2013-11-20 | 2013-11-20 | Staged vibrating tool for horizontal well |
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