CN207761579U - A kind of static mechanical formula automatic vertical drilling tool of zero deflecting under perpendicular attitude - Google Patents

Abstract

The static mechanical formula automatic vertical drilling tool of the utility model discloses a kind of under perpendicular attitude zero deflecting, the piston base being connect including outer barrel and with outer barrel, mandrel and upper moushroom valve are provided in outer barrel, lower moushroom valve is provided on piston base, mandrel is connect with outer barrel, upper moushroom valve is rotatably connected with lower moushroom valve, further includes that between outer barrel and mandrel and can control the pendulum cylinder that moushroom valve is opened and closed, pendulum cylinder is rotatably connected with outer barrel.The static mechanical formula automatic vertical drilling tool, deflecting control accuracy and sensitivity is high, and the well straightening limit is vertical close to theory, and deflecting phenomenon will not occur, and improves the deflecting control precision and performance of mechanical vertical drilling tool.

Description

A kind of static mechanical formula automatic vertical drilling tool of zero deflecting under perpendicular attitude

Technical field

The utility model is related to mechanical engineering fields, more particularly to a kind of static mechanical of zero deflecting under perpendicular attitude Formula automatic vertical drilling tool.

Background technology

Since hole deviation problem caused by geologic(al) factor, drilling tool factor and technological factor etc. can be to being subsequently drilled well, extraction oil Etc. causing a series of adverse effect, especially during deep drilling, how to effectively control hole deviations to keep wellbore vertically always It is the mostly important technical barrier of modern drilling project.The anti-oblique technology such as traditional pendulum assembly, packed hole assembly can not Meet the needs of modern drilling, and the appearance of automatic vertical drilling technology brings huge technology for the anti-oblique well straightening in underground and dashes forward It is broken, the high verticality of wellbore is realized during actively anti-oblique well straightening, meets the development of modern drilling technology well It is required that.

Automatic vertical drilling technology is a kind of straight well operation technique actively carrying out anti-oblique well straightening using down-hole equipment, success Solve high steep high tiltedly layer it is anti-oblique beat soon, the problems such as deep ＆ ultra-deep well is vertically drilled, deep formation Science Drilling, Neng Gouyou Effect reduces drilling rod torque and frictional resistance, discharges bit pressure, greatly improves rate of penetration, and then reduce drilling cost [1-2].The technology is most The early VDS systems originating from German continent mohole drilling plan (KTB plans), are controlled using the electronic control system of downhole closed loop Scalable guide pad close to drill bit pushes borehole wall flash to, and then well track is made gradually to restore to vertical [3].Currently, foundation Hole deviation incudes and the difference of control mode, automatic vertical drilling tool are divided into electronic control type automatic vertical drilling system and machinery Formula automatic vertical drilling system two major classes.Electronic control type automatic vertical drilling system develops more mature, domestic granddad at present Department develops the systems such as Power V, Verti Trak, SL-AVDS, CGVDS in succession, and deflecting control is very capable, and precision is very high, But such well system contains the sensor and electric-control system of high-precision and high sensitivity, cost and maintenance cost are high. And mechanical automatic vertical drilling tool structure is relatively easy, is free of electronic component, by gravity sensing hole deviation, have it is at low cost, The features such as high temperature resistant, strong applicability, high reliability, oil gas have been increasingly becoming high steep high tiltedly area in face of sluggish oil gas price One of the anti-oblique optimal selection beaten soon [4-5].

Currently, the operation principle of vertical drilling tool is that deflect to wellbore under the effect of gravity low for weighting block both at home and abroad Side, and moushroom valve is driven to deflect to wellbore flash will be opened positioned at the drilling fluid runner of wellbore flash, and cleaner for high-pressure drilling fluid is into air stream enter runner And the borehole wall that piston pushes wellbore flash to is will push against, it forces drill bit in the low side side aggravation cutting of wellbore, wellbore is made to restore vertical. During the straightening control of such mechanical vertical drilling tool, the lower moushroom valve of weighting block control always there are one or two be in and beat Open state, correspondingly backup piston always there are one or two push the borehole wall to.When drilling tool is close to plumbness, weighting block energy The deflection torque for enough providing well straightening is smaller, in overcoming the deflection of moushroom valve and friction torque, weighting block center line and reason By the low side of wellbore there are certain angle, the well straightening force direction that drilling tool provides only is proximate to the low edge direction of theoretical wellbore, both only It can accomplish the main component of well straightening active force in the low edge direction of wellbore, leading to the type mechanical vertical drilling tool, there are well straightening poles Limit, hole deviation precision are relatively low.In addition, when drilling tool is at or close to plumbness, eccentric block can be in because of underground vibrating The reason of be in random site, backup piston pushes the borehole wall to and is applied to the side cutting power of drill bit to be not only unable to well straightening, opens instead Beginning deflecting, this is all the major reason of limit mechanical formula vertical drilling tool well straightening ability and well straightening precision, and mechanical vertical is caused to bore The deflecting control ability of tool is relatively low.The pre- deflecting control performance for improving mechanical vertical drilling tool, need to be from control principle and knot Structure design etc. carries out new optimization and transformation.

In view of this, special propose the utility model.

[1]Chur C,Oppelt J.Vertical Drilling Technology:A Milestone in Directional Drilling[R].SPE/IADC 25759,1993.

[2] Yang Chunxu, Han Laiju walk Yuhuan, wait new development and developing direction [J] oil of modern vertical drilling technologies Drilling technique, 2007,35 (1)：16-19.

[3] the mechanical static double-deck backup automatic vertical drilling tools of the pleased of Li Lixin, Xue Qilong, Liu Baolin, Zhao Liudong, Li Xin Design [J] China University Of Petroleum Beijing's journals (natural science edition), 2017,41 (4):91-98

[4]Steve Jones,Chad Feddema,Juan Castro.Fully mechanical vertical drilling system delivers RSS performance in vertical drilling applications while providing an economical alternative conventional rotary steerable systems set-Up for vertical hold mode[R].IADC/SPE-178788,2016.

[5] development of Han Laiju, Ni Hongjian, Zhao Jinhai, Liu Zhihe, Wu Zhong China mechanical automatic vertical drilling tools [J] petroleum journals, 2008,29 (5)：766-768.

Utility model content

The purpose of this utility model is to provide a kind of static mechanical formula automatic vertical drilling tool of zero deflecting under perpendicular attitude, The deflecting control precision and performance of mechanical vertical drilling tool can be greatlyd improve.

To achieve the goals above, a kind of static mechanical formula of zero deflecting under perpendicular attitude provided by the utility model from Dynamic vertical drilling tool, including outer barrel and the piston base that is connect with the outer barrel are provided with mandrel and upper moushroom valve, institute in the outer barrel It states and is provided with lower moushroom valve on piston base, the mandrel is connect with the outer barrel, and the upper moushroom valve and the lower moushroom valve are rotatable Connection, further include positioned at the outer barrel and the mandrel between and can control moushroom valve opening and closing pendulum cylinder, the pendulum cylinder and The outer barrel is rotatably connected.

Preferably, the pendulum cylinder controls the opening and closing of upper moushroom valve by rotatable mandril, and the pendulum cylinder can oppress The mandril rotation, makes the mandril that the upper moushroom valve be pushed to be rotated relative to the lower moushroom valve, and then controls upper moushroom valve opening and closing.

Preferably, it is provided with support base on the lower moushroom valve, the mandril is rotatably connected with the support base.

Preferably, torsional spring is provided between the mandril and the support base, the torsional spring is rotated by the drive mandril, The mandril is set to be fitted closely with the pendulum cylinder.

Preferably, the mandril side is equipped with protrusion, the protrusion and one side contacts of upper moushroom valve.

Preferably, pendulum cylinder bottom is equipped with washer.

Preferably, be provided in the lower moushroom valve for fluid by spiral fluid course.

Preferably, it is additionally provided with pressure equalisation passage in the lower moushroom valve.

Preferably, the upper moushroom valve is symmetrical structure, the both ends of the upper moushroom valve respectively with the fluid course and institute State pressure equalisation passage fitting.

Preferably, torsional spring is provided between the upper moushroom valve and the lower moushroom valve, the torsional spring can adjust the upper moushroom valve Both ends are bonded with the fluid course and the pressure equalisation passage, so that at the fluid course and the pressure equalisation passage In closed state.

The static mechanical formula automatic vertical drilling tool of zero deflecting provided by the utility model under perpendicular attitude, in outer barrel and core Between centers is provided with the pendulum cylinder that can control moushroom valve opening and closing, which is rotatably connected with outer barrel.It is existed using pendulum cylinder Vertical characteristic induction hole deviation is remained under gravity, so control moushroom valve be opened and closed and drive respective pistons push to the borehole wall into Row well straightening；When hole deviation is at or approximately at theoretical plumbness, pendulum cylinder is also at plumbness, and moushroom valve will not be pushed to turn Dynamic, all moushroom valves are closed, therefore no piston is pushed to the borehole wall, and deflecting, therefore its deflecting control precision will not occur With sensitivity higher, the well straightening limit is vertical close to theory, and deflecting phenomenon will not occur, and improves the well of mechanical vertical drilling tool Oblique control accuracy and performance.

Description of the drawings

Fig. 1 is the sectional view of the utility model static mechanical formula automatic vertical drilling tool；

Fig. 2 is enlarged drawing at the A of static mechanical formula automatic vertical drilling tool in Fig. 1；

Fig. 3 is the knot of mandril, support base, upper moushroom valve and the cooperation of lower moushroom valve in static mechanical formula automatic vertical drilling tool in Fig. 1 Structure schematic diagram；

Fig. 4 is the vertical view of the upper moushroom valve of static mechanical formula automatic vertical drilling tool in Fig. 1；

Fig. 5 is the sectional view of upper moushroom valve in Fig. 4；

Fig. 6 is the vertical view of the lower moushroom valve of static mechanical formula automatic vertical drilling tool in Fig. 1；

Fig. 7 is the sectional view of lower moushroom valve in figure.

In figure：

1. drilling rod top connection；11. filter screen；12. channel；2. outer barrel；3. piston base；4. mandrel；5. pendulum cylinder；51. Inner washer；52. outer washer；Moushroom valve on 6.；61. connecting hole；7. lower moushroom valve；71. fluid course；72. support base；73. pressure is flat Weighing apparatus channel；74. support base mounting hole；75. mounting hole；8. mandril；81. protrusion.

Specific implementation mode

In order to make those skilled in the art be better understood from the utility model, below in conjunction with the accompanying drawings and specific embodiment party Formula is described in further detail the utility model.

Referring to figs. 1 to Fig. 7, the static mechanical formula automatic vertical of zero deflecting provided in this embodiment under perpendicular attitude bores Tool, is mainly made of drilling rod top connection 1, outer barrel 2 and piston base 3, they are sequentially connected；Wherein core is provided in outer barrel 2 Axis 4, pendulum cylinder 5 and upper moushroom valve 6 are provided with lower moushroom valve 7 on piston base 3, and are provided with fluid course in lower moushroom valve 7 71；Upper moushroom valve 6 can descend moushroom valve 7 to rotate relatively, and then control the opening and closing of fluid course 71；It is also set in piston base 3 It sets and is evenly distributed with and for the backup piston of the backup borehole wall there are four circumferential.

Drilling rod top connection 1 relies on bearing group for being connected with top rod or power drilling tool, with outer barrel 2 and mandrel 4 Connection, which includes an axial thrust bearing and a radial alignment bearing, to ensure thrust bearing phase under vibration Mutually collision bearing group need to be pre-tightened with disc spring.When drilling rod top connection 1 is connect with external equipment, can increase between external equipment at it One filter screen 11, the upstream face and drilling tool of the filter screen 11 are axially angled, big to ensure to be filtered in drilling fluid Grain size solid phase particles flow into 4 mesoporous of mandrel, and then flushing hole bottom, the filtered drilling well of another part under drilling fluid flushing action Liquid then flows into drilling tool working chamber by the fluid channel 12 in drilling rod top connection, and well straightening lateral force is provided to the backup borehole wall.

Mandrel 4 runs through integral device, and internal is that multi-step hollow cylinder designs, its intensity and reliable can be improved in this way Property, the lower part of mandrel 4 are connect with drill bit, and bit pressure and torque are transferred to drill bit successively by drilling rod top connection 1 through mandrel 4.

Cavity between outer barrel 2 and mandrel 4 is the gravity sensing part of drilling tool in the present embodiment, and wherein pendulum cylinder 5 is Gravity sensing component, the pendulum cylinder 5 are lifted by lifting item on the top or above-mentioned bearing group of outer barrel 2.Lifting item makes It is made of spring steel, there is certain flexibility, pendulum cylinder 5 to be manufactured using high-density alloy (lead, tungsten etc.) so that pendulum cylinder 5 exists Lasting holding is vertical when drilling tool tilts or near normal state.For the company between pendulum cylinder 5 and outer barrel 2 or above-mentioned bearing group It is not unique to connect mode, as long as ensureing that pendulum cylinder 5 can rotate.When drilling tool glances off, pendulum cylinder 5 still keeps hanging down Directly, it will push upper moushroom valve 6 to be rotated relative to lower moushroom valve 7 at this time, and then open the fluid course 71 on lower moushroom valve 7, make drilling well Liquid stream is through fluid course 71 and pushes the piston backup borehole wall in piston base 3, to achieve the purpose that well straightening.

It is opened and closed to preferably enable pendulum cylinder 5 control upper moushroom valve 6, being provided between upper moushroom valve 6 and pendulum cylinder 5 can turn Dynamic mandril 8, by the support base 72 that is arranged on lower moushroom valve 7, (support base 72 passes through the support base on lower moushroom valve 7 to the mandril 8 Mounting hole 74 is fixedly connected with lower moushroom valve 7) it is connected, torsional spring (not shown) is provided between support base 72 at it, the torsion Spring can ensure that mandril 8 contacts always with pendulum cylinder 5.The side of mandril 8 is provided with a protrusion 81, the protrusion 81 with it is upper One side contacts of moushroom valve 6.During drilling tool well straightening, pendulum cylinder 5 oppress mandril 8 rotate, the protrusion 81 on mandril 8 into Moushroom valve 6 rotates relative to lower moushroom valve 7 in the promotion of one step；In drilling tool pose recovery vertical process, mandril 8 is in torsional spring It is resetted simultaneously with pendulum cylinder 5 under effect；And in order to ensure that upper moushroom valve 6 also can smoothly reset, in upper moushroom valve 6 and lower moushroom valve 7 Between be again provided with torsional spring (not shown).

Upper moushroom valve 6 is connect by in-between connecting hole 61 with the cylindrical boss (not shown) on lower moushroom valve 7；By Run through integral device in mandrel 4, therefore upper moushroom valve 6 is arranged in around mandrel 4 on lower moushroom valve 7.It, can for the quantity of upper moushroom valve 6 The quantity for the upper moushroom valve 6 for being increased and decreased according to actual conditions, and being selected in the present invention is four, and is uniformly arranged in On lower moushroom valve 7.

Since equipment operating environment is severe, in the process of running, the making contact that mandril 8 is continued for pendulum cylinder 5 is Reduce the abrasion that making contact between them is brought, can it contact with pendulum cylinder 5 on mandril 8 position setting washer, the pad Circle can play the role of buffering, the abrasion being further reduced between them.In equipment running process, it is understood that there may be on mandril 8 Torsional spring damage or other situations, cause the limit of mandril 8 to be failed, 5 pairs of mandrels 4 of pendulum cylinder or outer barrel 2 may be made at this time Damaging collision is generated, and in order to avoid this kind of situation, the bottom of pendulum cylinder is provided with washer, which is divided into interior Washer 51 and outer washer 52, they respectively wrap up pendulum cylinder bottom interior surface and outer surface.

For fluid course 71 in lower moushroom valve 7 design there are many kinds of form, can be selected according to actual conditions.And In the present embodiment, spiral fluid course will be used, when drilling tool glances off, compressing is located at the low side of wellbore by pendulum cylinder 5 Mandril 8,6 side of moushroom valve in 81 backup of protrusion on further mandril 8 makes moushroom valve 6 rotate, under opening The fluid course 71 positioned at the low side of wellbore on moushroom valve 7, at this time fluid the entering by spiral shape fluid course 71 on the low side of wellbore Mouth enters, and is flowed out from the outlet of the spiral shape fluid course 71 of wellbore flash, and then will be located at wellbore flash on piston base 3 Piston push the borehole wall to, form the side cutting power to the low side of borehole bottom at drill bit, wellbore made gradually to restore vertical.

It is provided with sealing between lower moushroom valve 7 and piston base 3, in the present embodiment, what which selected is soft aluminium pad Block, the trepanning of soft aluminium cushion block are identical as the outlet end of spiral flow passage 71 on lower moushroom valve 7.By lower moushroom valve 7, soft aluminium cushion block After being fixedly connected with piston base 3 and (bolt can be selected to connect by the mounting hole 75 on lower moushroom valve 7), soft aluminium cushion block, which can guarantee, to be connected The sealing for meeting place, avoiding fluid, radially gap flows into the fluid stream road in piston base 3, causes the piston that need not be released It releases, leads to drilling tool failure.

At present in the control mechanism of mechanical automatic vertical drilling tool, the control valve of drilling fluid runner mostly use moushroom valve and Two kinds of designs of ring valve.When using moushroom valve scheme, since sealing for moushroom valve relies on pressure difference of the drilling fluid inside and outside drilling tool, therefore moushroom valve Front surface then need the normal pressure for bearing to be formed by pressure difference.Pressure difference of the drilling fluid inside and outside drilling tool is generally approximately equal to drill bit Drilling fluid pressure drop, generally in 3-5Mpa, therefore the normal pressure that moushroom valve is born is larger, causes frictional resistance larger.And use ring valve When scheme, valve port fluid course and ring valve are axially vertical, and the normal pressure that ring valve is axially born can be by the rigid element of ring valve material It undertakes, frictional resistance is smaller with respect to moushroom valve, but card resistance caused by mud solid phase particle easily occurs there are gap between ring valve valve, can It decreases again by property.In view of the above problems, in the present embodiment, it is right with spiral shape fluid course 71 to be equipped on lower moushroom valve 7 The pressure equalisation passage 73 answered, the both ends of upper moushroom valve 6 respectively with 71 phase of the pressure equalisation passage 73 and above-mentioned spiral flow passage Even.In drilling tool operational process, the impact force for the fluid that side that upper moushroom valve 6 is bonded with spiral flow passage 71 is subject to, and with The pressure equalisation passage 73 that the other side is bonded on upper moushroom valve 6 can provide an other impact force, and then make 6 both ends of moushroom valve Stress is identical, and the sealing normal pressure between moushroom valve is undertaken by 6 stiffness by itself of upper moushroom valve at this time, effectively reduces the rotation of moushroom valve 6 Resistance, and ensure that the reliability that moushroom valve 6 can be rotated around the round boss on lower moushroom valve 7.And in order to enable upper moushroom valve 6 is revolving It is more prone to during turning, upper moushroom valve 6 can be designed to symmetrical structure, both ends are rounded, and circular both ends correspond to respectively Pressure equalisation passage 73 and spiral shape fluid course 71.

The utility model proposes the static mechanical formula automatic vertical drilling tool of zero deflecting under perpendicular attitude, be using lifting Pendulum cylinder 5 remains vertical characteristic induction hole deviation under the effect of gravity, and then controls moushroom valve and be opened and closed and drive respective pistons Push the borehole wall to and carries out well straightening.When generating hole deviation due to factors such as formation function power, drilling technologies, drilling tool posture and hole deviation basic one It causes, and the pendulum cylinder 5 being lifted on bearing block still keeps vertical under self gravitation effect, drilling tool initially enters well straightening work State.In drilling tool control and executing agency four pistons and corresponding moushroom valve control machine are evenly distributed with 90 ° of phase differences containing circumferential Structure, one or two mandril 8 positioned at the low side of wellbore suffer oppression promotion accordingly upper moushroom valve 6, at this time due to drilling tool skew direction with There are two angles for 8 position of mandril, then mandril 8 is oppressed degree is different, cause moushroom valve 6 allow drilling fluid by opening It is different to open area, the flow difference of drilling fluid into air stream enter runner is resulted in backup piston and is pushed to the borehole wall with different backups, but The direction of its resultant force theoretically overlaps that (ordinary circumstance is two mandrils 8 while suffering oppression, only when drilling tool deflection side with wellbore flash To overlapping with the line of centres of contraposition piston or close to when overlapping, just can only be oppressed there are one mandril 8, backup at this time is with joint efforts Equal to the single backup power for releasing piston, direction is still wellbore flash).When hole deviation is at or approximately at theoretical plumbness, Lifting pendulum cylinder 5 is also at plumbness, will not oppress mandril 8, all moushroom valves are in closed state, therefore no piston is pushed to Deflecting will not occur for the borehole wall.Therefore, compared to the mechanical vertical drilling tool backup power side low with wellbore of weighting block control, there are one Clamp angle, the drilling tool restoring force under pendulum cylinder 5 controls are directed toward the low side of wellbore always, and deflecting control accuracy and sensitivity higher is entangled The oblique limit is vertical close to theory, and deflecting phenomenon will not occur.

In addition, mechanical automatic vertical drilling tool provided by the utility model can also meet following requirement：

1, high verticality straight well operation

The mechanical automatic vertical drilling tool can meet high steep high tiltedly area it is anti-oblique beat soon, high density cluster well anti-collision beat directly, The job requirements of the operating modes such as the vertical well section of horizontal well, deep ＆ ultra-deep well probing, can carry out the job requirements of high verticality straight well.It should Mechanical vertical drilling tool have higher deflecting control ability, be suitable for different drilling fluid types, can undertake it is all kinds of differently The drillng operation of layer condition, various different depths.The drilling tool can be developed according to specific Drilling Design and be suitable for various different hole diameters Serial drilling tool.

2, well straightening drop angle operation

When hole deviation having occurred in drilling process more than design requirement, the mechanical automatic vertical drilling tool can be used to be entangled The oblique operation of oblique deascension, hole deviation is down within design requirement, is provided safeguard to carry out subsequent well operation.

3, high temperature and abnormal geothermal gradient straight well operation

The mechanical automatic vertical drilling tool can bear hot conditions and singularly without any rubber parts, electronic component Straight well drilling operation under warm gradient, is not limited by formation temperature.

4, directed drilling operation

Using the principle of pendulum cylinder control moushroom valve opening and closing, also changeable lower moushroom valve spiral flow channel structure realizes Directional Drilling Well operations.Spiral flow channel is such as designed to straight channel, you can complete orientation no-dig technique drillng operation, which fits simultaneously For other drilling engineerings such as oil drilling, well.

In conclusion the static mechanical formula automatic vertical drilling tool of zero deflecting provided by the utility model under perpendicular attitude, The pendulum cylinder of upper moushroom valve opening and closing can be controlled by being provided between outer barrel and mandrel, and be protected always under the effect of gravity using pendulum cylinder Vertical characteristic induction hole deviation is held, and then controls moushroom valve and is opened and closed and respective pistons is driven to push borehole wall progress well straightening to；At hole deviation When theoretical plumbness, pendulum cylinder is also at plumbness, and moushroom valve will not be pushed to rotate, and all moushroom valves, which are in, to close Closed state, therefore no piston is pushed to the borehole wall, and deflecting, therefore its deflecting control accuracy and sensitivity higher, well straightening will not occur The limit is vertical close to theory, and deflecting phenomenon will not occur, and successfully solves entangling for more traditional weighting block control formula machinery drilling tool The problems such as oblique precision is relatively low, and deflecting occurs under plumbness, and moushroom valve frictional resistance is larger improves mechanical vertical brill The deflecting control precision and performance of tool.In addition, drilling tool design is simple, and it is easy for installation, there is more excellent hole deviation control Ability, control accuracy and reliability processed make mechanical automatic vertical drilling tool be applied to the market competitiveness of high quality straight well operation It greatly reinforces.

Above to provided by the utility model under perpendicular attitude zero deflecting static mechanical formula automatic vertical drilling tool into It has gone and has been discussed in detail.Specific case used herein is expounded the principles of the present invention and embodiment, above The explanation of embodiment is merely used to help understand the core concept of the utility model.It should be pointed out that for the general of the art For logical technical staff, without departing from the principle of this utility model, several improvement can also be carried out to the utility model And modification, modifications and modifications also fall within the protection scope of the claims of the utility model.

Claims (10)

1. a kind of static mechanical formula automatic vertical drilling tool of zero deflecting under perpendicular attitude, including outer barrel and it is connect with the outer barrel Piston base, be provided with mandrel and upper moushroom valve in the outer barrel, be provided with lower moushroom valve on the piston base, the mandrel with The outer barrel connection, the upper moushroom valve are rotatably connected with the lower moushroom valve, it is characterised in that：Further include be located at the outer barrel and Between the mandrel and the pendulum cylinder that moushroom valve is opened and closed can be controlled, the pendulum cylinder is rotatably connected with the outer barrel.

2. static mechanical formula automatic vertical drilling tool according to claim 1, it is characterised in that：The pendulum cylinder is by that can turn The opening and closing of the dynamic upper moushroom valve of mandril control, the pendulum cylinder can oppress the mandril rotation, the mandril made to push on described Moushroom valve is rotated relative to the lower moushroom valve, and then controls upper moushroom valve opening and closing.

3. static mechanical formula automatic vertical drilling tool according to claim 2, it is characterised in that：It is provided on the lower moushroom valve Support base, the mandril are rotatably connected with the support base.

4. static mechanical formula automatic vertical drilling tool according to claim 3, it is characterised in that：The mandril and the support Torsional spring is provided between seat, the torsional spring makes the mandril be fitted closely with the pendulum cylinder by driving the mandril to rotate.

5. static mechanical formula automatic vertical drilling tool according to claim 2, it is characterised in that：The mandril side is equipped with convex Go out portion, the protrusion and one side contacts of upper moushroom valve.

6. according to any static mechanical formula automatic vertical drilling tool in claim 1 to 5, it is characterised in that：The pendulum Cylinder bottom is equipped with washer.

7. according to any static mechanical formula automatic vertical drilling tool in claim 1 to 5, it is characterised in that：The lower wall Be provided in valve for fluid by spiral fluid course.

8. static mechanical formula automatic vertical drilling tool according to claim 7, it is characterised in that：It is also set up in the lower moushroom valve There is pressure equalisation passage.

9. static mechanical formula automatic vertical drilling tool according to claim 8, it is characterised in that：The upper moushroom valve is symmetrical expression The both ends of structure, the upper moushroom valve are bonded with the fluid course and the pressure equalisation passage respectively.

10. static mechanical formula automatic vertical drilling tool according to claim 9, it is characterised in that：The upper moushroom valve with it is described Torsional spring is provided between lower moushroom valve, the torsional spring can adjust the upper moushroom valve both ends and the fluid course and the pressure balance Channel is bonded, so that the fluid course and the pressure equalisation passage are closed.