CN103334697B - Rotary guide device of drilling tool and drilling tool - Google Patents
Rotary guide device of drilling tool and drilling tool Download PDFInfo
- Publication number
- CN103334697B CN103334697B CN201310313874.8A CN201310313874A CN103334697B CN 103334697 B CN103334697 B CN 103334697B CN 201310313874 A CN201310313874 A CN 201310313874A CN 103334697 B CN103334697 B CN 103334697B
- Authority
- CN
- China
- Prior art keywords
- turning cylinder
- drilling tool
- outer sleeve
- biasing
- guiding device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Earth Drilling (AREA)
Abstract
The invention discloses a rotary guide device of a drilling tool. The rotary guide device comprises a rotating shaft (1) of the drilling tool, wherein the rotating shaft is of a flexible hollow tubular member, and drilling fluid flows in the rotating shaft in an operating state of the drilling tool. The rotary guide device further comprises an outer sleeve (2) and a bias driving assembly (3), wherein the outer sleeve (2) surrounds the outside of the rotating shaft, the two ends of the outer sleeve (2) are in sealed connection with the external wall of the rotating shaft, and the bias driving assembly (3) is arranged in the outer sleeve so as to apply a biasing force on the rotating shaft. The rotary guide device further comprises bias driving fluid and a bias control assembly, wherein the bias driving fluid is formed by the drilling fluid and is used for driving the bias driving assembly, and the bias control assembly is used for controlling the bias driving fluid. The invention further discloses the drilling tool which is provided with the rotary guide device. According to the drilling tool, the structure is simple, and the manufacturing cost and operation maintaining cost of the drilling tool can be reduced greatly while the directional whipstocking function of the drilling tool is realized.
Description
Technical field
The present invention relates to drilling well field, particularly, relate to a kind of rotary guiding device and drilling tool of drilling tool.
Background technology
The needs of exploration and development situation are promoting the evolution and development of well type, and the complex structural wells such as extended reach directional well, ultra-thin oil-reservoir water horizontal well, multi-bottom branch directional well shared ratio in oilfield prospecting developing is increasing.The high new drilling techniques that rotary steerable drilling technology occurs in time in order to adapt to the needs of these complex structural well drillng operations is just research emphasis and the developing direction of modern steerable drilling.
In prior art, the rotary steering of drilling tool is realized by two kinds of modes conventionally.One is pushing type, and this mode, by the flexible backup borehole wall of nearly drill bit guide pad, makes drill bit obtain desired biasing guiding force.Another kind is directional type, and this mode setovers the turning cylinder of drilling tool by a set of bias unit, for drill bit provides one and the inconsistent inclination angle of borehole axis, makes drill bit obtain desired biasing guiding force.Wherein, the drilling tool of the rotary steering of directional type does not need the rib guide pad backup borehole wall to change direction, and therefore its guide effect is not subject to the impact of the imperfect or well hole enlargement in stratum, and in the well of soft formation or hole enlargement, Use Limitation fruit is better.
But, the drilling tool structure complex of directional type rotary steering of the prior art.The biasing mechanism of this drilling tool is made up of one group of mutually nested Eccentric Circular Ring, and drilling tool, vertically creep into the process of changing between the operating mode such as directional inclination, is exactly in fact the changing process of Eccentric Circular Ring combination.And the change of the combination of Eccentric Circular Ring realizes by the automatic control system that is implanted to a large amount of electrical equipment in drilling tool and Hydraulic Elements composition.These electrical equipments and Hydraulic Elements and for battery or the cable of the power supply of these elements all need to be along with drill bit enters into down-hole.The complex working condition of down-hole and the length of drilling tool, apart from operation, need the huge element of these quantity and power supply part thereof can adapt to harsh operating environment, have more aggravated thus to manufacture difficulty and the cost of this drilling tool.In addition, the complicated structure of drilling tool also causes the operation and maintenance cost of drilling tool too expensive.
Summary of the invention
The object of this invention is to provide a kind of rotary guiding device and drilling tool of drilling tool simple in structure, to reduce manufacturing cost and the operation expense of drilling tool in realizing the directional inclination function of drilling tool.
To achieve these goals, the invention provides a kind of rotary guiding device of drilling tool, this rotary guiding device comprises the turning cylinder of drilling tool, and turning cylinder is the tube-like piece of flexible hollow, under the running status of drilling tool, in turning cylinder, flows and has drilling fluid; Rotary guiding device also comprises and is centered around the outer sleeve that the outside of turning cylinder and the outer wall of two ends and turning cylinder are tightly connected, and is arranged in outer sleeve to apply the biasing driven unit of bias force to turning cylinder; Wherein, rotary guiding device also comprise formed by drilling fluid for driving the biasing drive fluid of biasing driven unit, and for to the biasing Control Component controlled of biasing drive fluid.
Preferably, on the tube wall that is positioned at outer sleeve inside of turning cylinder, offer via, to allow drilling fluid to form biasing drive fluid from the inner flow direction biasing driven unit of turning cylinder; And along the flow direction of biasing drive fluid, biasing driven unit is arranged on the downstream position of via.
Preferably, along biasing drive fluid from upstream to the direction in downstream, biasing driven unit comprises: fixture, offers the drainage channel of top to bottom that connects fixture on this fixture; And tumbler, on this tumbler, offer multiple driving grooves; Wherein, drive the opening of groove towards the outlet of drainage channel, and can promote to drive the cell wall of groove from the biasing drive fluid of drainage channel outflow, so that tumbler drives turning cylinder to setover.
Preferably, fixture comprises: stator, and this stator is fixedly connected on the inwall of outer sleeve, and the centre of stator offers the stator through hole that extends and allow turning cylinder to pass along the axial direction of outer sleeve; Locating ring, this locating ring is arranged on the top of stator, and the outer peripheral edges of locating ring are sealedly connected on the inwall of outer sleeve, on the inner peripheral of locating ring, offers groove along circumferential direction, and the groove depth direction of this groove is extended along the radial direction of locating ring; And sealing plate, sealing baffle plate covers the top of stator through hole, and in the groove of the inner peripheral of the outer peripheral edges of sealing plate embedding locating ring, the inner peripheral of sealing plate and the outer wall of turning cylinder are tightly connected; Wherein, drainage channel connects locating ring and stator, and arranges at intervals between the bottom land of the groove of the inner peripheral of locating ring and the outer peripheral edges of sealing plate.
Preferably, tumbler comprises: rotor, this rotor be connected on the inwall of outer sleeve in the mode that can rotate around the axis of outer sleeve, and the centre of rotor offers the rotor through hole corresponding with stator through hole position, and this rotor through hole is with respect to the eccentric axis setting of outer sleeve; Wherein, drive groove to be arranged on the end face of rotor; And geared sleeve, this geared sleeve is set on the outer wall of turning cylinder and is sealed in rotor through hole; Wherein, the cross sectional area of rotor through hole is greater than the cross sectional area of geared sleeve, on the hole wall of rotor through hole and on the outer wall of geared sleeve, being respectively arranged with can intermeshing the first tooth portion and the second tooth portion, and the number of teeth of the first tooth portion is more than the number of teeth of the second tooth portion.
Preferably, offer pressure release runner on rotor, the entrance of pressure release runner is connected with driving groove, and the outlet of pressure release runner is arranged on the lateral wall that rotor and inwall outer sleeve adjoin mutually; And on the sidewall of outer sleeve, offer the by-pass prot corresponding with the position of the outlet of pressure release passage, pressure release passage is intermittently connected with the outside of outer sleeve via by-pass prot.
Preferably, biasing Control Component comprises: guide portion, and this guide portion is arranged in the tube chamber of turning cylinder, flows to via with guided drilling fluid; And pressure opening and closing valve, this pressure opening and closing valve is arranged on via place, and the aperture of pressure opening and closing valve can change along with the size of the pressure of the drilling fluid in turning cylinder.
Preferably, biasing Control Component also comprises: position sensor, and this position sensor is arranged on the drill bit place of drilling tool, in order to detect and to send the signal at the angle of inclination of turning cylinder; Pressure-control valve, this pressure-control valve is arranged on the turning cylinder of the upstream position of the outer sleeve of the flow direction of drilling fluid, in order to control the size of pressure of drilling fluid; And control module, this control module is in response to the signal of position sensor, the aperture of controlled pressure control valve.
Preferably, guide portion is concave shaped cavity, and this concave shaped cavity is connected with via, and the opening of concave shaped cavity is towards the upstream side of via.
On the other hand, the present invention also provides a kind of drilling tool, and above-mentioned rotary guiding device is installed on this drilling tool.
By technique scheme, the invention provides a kind of rotary guiding device that utilizes downhole fluid to carry out the drilling tool of mechanical rotary steering.Biasing drive fluid that this rotary guiding device utilization is formed by drilling fluid drives biasing driven unit, and to make to setover, driven unit applies biasing guiding force to turning cylinder.And after the certain amount of deflection of the stressed generation of turning cylinder, can produce an angle of inclination at the shaft part of the close drill bit of turning cylinder, thereby make drill bit obtain desired biasing guide direction.That is to say, in rotary guiding device of the present invention, only just realized the deflecting function of drilling tool by drilling fluid and mechanical component, and no longer needed to arrange the down-hole electronic control system of complex and expensive.By this, greatly simplify the structure of drilling tool, and then reduced manufacturing cost and the operation expense of drilling tool.
Other features and advantages of the present invention are described in detail the detailed description of the invention part subsequently.
Brief description of the drawings
Accompanying drawing is to be used to provide a further understanding of the present invention, and forms a part for manual, is used from explanation the present invention, but is not construed as limiting the invention with detailed description of the invention one below.In the accompanying drawings:
Fig. 1 is the sectional view according to kick-off device of the present invention;
Fig. 2 is the schematic perspective view that shows the structure of stator and rotor;
Fig. 3 shows that geared sleeve is set in the schematic perspective view of the structure on turning cylinder;
Fig. 4 shows that stator drainage channel and rotor drive the schematic diagram of the structural relation of groove;
Fig. 5 is the sectional view after cutting open along the A-A line in Fig. 1;
Fig. 6 is the sectional view of the kick-off device shown in Fig. 1 in another location;
Fig. 7 is the sectional view after cutting open along the B-B line in Fig. 6;
Fig. 8 is the schematic diagram that shows the structure of guide portion and pressure opening and closing valve.
Description of reference numerals
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.Should be understood that, detailed description of the invention described herein only, for description and interpretation the present invention, is not limited to the present invention.
With reference to figure 1, the invention provides a kind of rotary guiding device of drilling tool.This rotary guiding device comprises the turning cylinder 1 of described drilling tool.This turning cylinder 1 is the tube-like piece of flexible hollow, and its one end is connected with rotating power source, and the other end is connected with drill bit.Under the running status of drilling tool, in turning cylinder 1, flow and have drilling fluid, this drilling fluid flows to one end that is connected with drill bit of turning cylinder 1 from one end that is connected with rotating power source of turning cylinder 1, and this drilling fluid is by returning on annular carries.
More specifically, as shown in Figure 1, rotary guiding device also comprises outer sleeve 2.This outer sleeve 2 is centered around the outside of turning cylinder 1, and the outer wall of the two ends of outer sleeve 2 and turning cylinder 1 is tightly connected.Like this, between the outer wall of turning cylinder 1 and the inwall of outer sleeve 2, form airtight space.According to embodiments of the invention, one end of the close rotating power source of outer sleeve 2 is connected with the outer wall of turning cylinder 1 rotationally by clutch shaft bearing 7.And, in one end away from rotating power source of clutch shaft bearing 7, be provided with the first seal snap ring 71 being connected between the inwall of outer sleeve 2 and the outer wall of turning cylinder 1.According to embodiments of the invention, one end of the close drill bit of outer sleeve 2 is connected with the outer wall of turning cylinder 1 rotationally by the second bearing 8.And, in one end away from drill bit of the second bearing 8, be provided with the second seal snap ring 81 being connected between the inwall of outer sleeve 2 and the outer wall of turning cylinder 1.Wherein, the first seal snap ring 71 and the second seal snap ring 81 are for isolating the inner space of outer sleeve 2 with respect to outside seal.
Further, according to embodiments of the invention, in outer sleeve 2, be provided with biasing driven unit 3, in order to apply biasing guiding force to turning cylinder 1.And the second bearing 8 is preferably set to bulb joint bearing.In the time being positioned at the turning cylinder 1 of outer sleeve 2 inside biasing occur, under the support of the second bearing 8, turning cylinder 1 run-off the straight between outer sleeve 2 and drill bit, thus realize the directional inclination of drilling tool.
In more detail, according to embodiments of the invention, rotary guiding device also comprises biasing drive fluid.This biasing drive fluid is formed by drilling fluid, and in order to drive biasing driven unit 3, thereby the driven unit 3 that makes to setover applies biasing guiding force to turning cylinder 1.In addition, according to embodiments of the invention, rotary guiding device also comprises biasing Control Component, and in order to biasing drive fluid is controlled, thereby the driven unit 3 that makes to setover applies default biasing guiding force to turning cylinder 1.
According to above-mentioned, rotary guiding device of the present invention is had at the two ends of turning cylinder 1 on the shaft part of bearings and is applied certain biasing guiding force by biasing driven unit, makes turning cylinder 1 produce certain amount of deflection.And then, make the shaft part of the close drill bit of turning cylinder 1 produce an angle of inclination.The size of the biasing guiding force that biasing driven unit applies has determined the size at angle of inclination, and the size at angle of inclination has determined the size of the deflecting ability of rotary guiding device.In the present invention, biasing driven unit is driven by the drive fluid of setovering, and biasing drive fluid is formed by drilling fluid.By this, in rotary guiding device of the present invention, no longer need to arrange the down-hole electronic control system of complex and expensive, thereby greatly simplified the structure of drilling tool, and then reduced manufacturing cost and the operation expense of drilling tool.
Continue with reference to figure 1, according to embodiments of the invention, on turning cylinder 1, offer via 11, use so that drilling fluid can flow to from the inside of turning cylinder 1 outside of turning cylinder 1, thereby form biasing drive fluid.As shown in fig. 1, via 11 is opened on the tube wall of the inside that is positioned at outer sleeve 2 of turning cylinder 1, and along the flow direction of biasing drive fluid, via 11 is arranged on the upstream position of biasing driven unit 3.Like this, biasing is after drive fluid flows out from via 11, the driven unit of can automatic stream setovering, and without other driving guide member is set.Certainly, if special driving guide member is set, biasing drive fluid is implemented to directed driving guiding, the relative position between via 11 and biasing driven unit 3 also can be arranged to above-mentioned set-up mode mode in addition.In addition, according to embodiments of the invention, via 11 can be provided with one or more, preferably, one to four via 11 can be set.
With reference to figure 1 and Fig. 4, according to embodiments of the invention, biasing driven unit 3 comprises fixture and tumbler.Wherein, tumbler can drive turning cylinder 1 to setover with respect to fixture.According to embodiments of the invention, along the flow direction of biasing drive fluid, fixture is arranged on the upstream position of tumbler.
More specifically, on fixture, offer the drainage channel 312 connecting to bottom from top.Should be appreciated that said top and bottom are here relatively to determine along the flow direction of biasing drive fluid.In other words, drainage channel 312 extends along the direction from upstream to downstream of fixture.According to preferred embodiment of the present invention, can on fixture, offer multiple drainage channels 312.These drainage channels 312 can be uniformly distributed along the circumferential direction of fixture, in order to strengthen the driving force of biasing drive fluid.
Further, on tumbler, offer multiple driving grooves 322.Preferably, drive groove 322 to be opened on the end face of tumbler.According to embodiments of the invention, drive the opening of groove 322 towards the outlet setting of drainage channel 312.Biasing drive fluid, from drainage channel 312 flows out, can flow to and drive groove 322 and form the motive force to driving groove 322.Particularly, as shown in Figure 4, drainage channel 312 is arranged to curved shape, and at the position of end that approaches drainage channel 312, drainage channel 312 forms the bend that camber is larger, and the opening direction in the exit of this bend is towards the rotation direction of tumbler.
According to above-mentioned, biasing drive fluid in drainage channel 312 from upstream the mobile fluid dynamic energy that carries to downstream, and above-mentioned bend can make the fluid dynamic energy generation sudden outburst gathering and pour in driving groove 322, thereby promote to drive the cell wall of groove 322 to be subjected to displacement.Like this, promote to drive groove 322 to rotate by biasing drive fluid, can realize tumbler and rotate with respect to fixture.And tumbler rotate time can drive turning cylinder 2 to setover.
With reference to figure 1, according to embodiments of the invention, fixture comprises stator 31.Stator 31 is fixedly connected on the inwall of outer sleeve 2.As shown in fig. 1, the centre of stator 31 offers the stator through hole 311 that extends and allow turning cylinder 1 to pass along the axial direction of outer sleeve 2, and drainage channel 312 is distributed in stator through hole 311 around.
According to embodiments of the invention, fixture also comprises the locating ring 4 that is arranged on stator 31 tops, and drainage channel 312 connects locating ring 4 and stator 31 arranges.The outer peripheral edges of locating ring 4 are sealedly connected on the inwall of outer sleeve 2, form in the axial direction spacing to stator 31.On the inner peripheral of locating ring 4, offer groove along circumferential direction, the groove depth direction of this groove is extended along the radial direction of locating ring 4.
Further, according to embodiments of the invention, fixture also comprises the sealing plate 41 at the top that covers stator through hole 311.Wherein, the centre of sealing plate 41 offers the through hole that allows turning cylinder 1 to pass, and the inner peripheral (being the hole wall of through hole) of sealing plate 41 is tightly connected with the outer wall of turning cylinder 1.In addition, the outer peripheral edges of sealing plate 41 embed in the groove of inner peripheral of locating ring 4, and arrange at intervals between the bottom land of the groove of the inner peripheral of locating ring 4 and the outer peripheral edges of sealing plate 41.By this, in the time that turning cylinder 1 is moved, sealing plate 41 can move in the groove of locating ring 4, but sealing plate 41 can form and block stator through hole 311 all the time.
According to above-mentioned, by locating ring 4 and sealing plate 41 are set, the drive fluid that can make to setover can only flow away from drainage channel 312, and discrete loss occurs the energy of the drive fluid that can prevent from by this setovering.And because sealing plate 41 can move with respect to locating ring 4, sealing plate 41 can not move to form to the biasing of turning cylinder 1 and hinder.In addition, for the sealing effectiveness of further enhanced leaktightness baffle plate 41, can in groove, fill some flexible sealing materials.Certainly, these encapsulants should not form adverse effect with respect to moving of locating ring 4 to sealing plate 41.
According to above-mentioned, sealing plate 4 is arranged on the downstream position of via 11, enclosed and formed a cavity by inwall, the first seal snap ring 71, locating ring 4 and the sealing plate 41 of the outer wall of turning cylinder 1, outer sleeve 2,11 of vias are opened on the tube wall of turning cylinder 1 that is arranged in this cavity.First the biasing drive fluid flowing out from the inside of turning cylinder 1 can be collected in this cavity.By the pressure extent between the pressure of the biasing drive fluid in pressure and this cavity of the drilling fluid in control turning cylinder 1, can control the size of the driving force of the fluid in drainage channel 312, and then can control the angle of inclination of turning cylinder 1.In addition, can carry more fluid dynamic energy for the drive fluid that makes to setover, can as best one can via 11 be opened in to the position near the first seal snap ring 71.
Referring to figs. 1 to Fig. 3 and Fig. 5 to Fig. 7, according to embodiments of the invention, tumbler comprises rotor 32.Along the flow direction of biasing drive fluid, rotor 32 is arranged on the downstream position of stator 31, drives groove 312 to be arranged on the end face of rotor 32.Rotor 32 is connected on the inwall of outer sleeve 2, and can rotate around the axis of outer sleeve 2.Such as but not limited to, the fit structure of sliding-rail sliding can be set between the lateral wall of rotor 32 and the inwall of outer sleeve 2.According to a preferred embodiment of the invention, rotor 32 is connected to the inwall of outer sleeve 2 by the 3rd bearing 9.In addition, offer the rotor through hole 321 corresponding with stator through hole 311 positions in the centre of rotor 32, to allow turning cylinder 1 to pass.
In more detail, according to embodiments of the invention, tumbler also comprises geared sleeve 33.As shown in Figure 3, geared sleeve 33 is set on the outer wall of turning cylinder 1.And geared sleeve 33 is sealed in rotor through hole 321.According to embodiments of the invention, as shown in Figure 5, on the hole wall of rotor through hole 321 and be respectively arranged with on the outer wall of geared sleeve 33 can intermeshing the first tooth portion 3211 and the second tooth portion 331.Preferably, the first tooth portion 3211 is interior engaging tooth, and the second tooth portion 331 is external toothing tooth.
Further, according to embodiments of the invention, rotor through hole 321 is the eccentric orfice arranging with respect to the eccentric axis of outer sleeve 2.And the cross sectional area of rotor through hole 321 is greater than the cross sectional area of geared sleeve 33, the number of teeth of the first tooth portion 3211 is more than the number of teeth of the second tooth portion 331.According to above-mentioned, by the meshing relation between the first tooth portion 3211 and the second tooth portion 331, in the time that rotor 32 rotates, can move along the hole wall of rotor through hole 321 by driven gear cover 33, and the movement of geared sleeve 33 can drive turning cylinder 1 to move.Further, by the cross sectional area feature of eccentric nature, rotor through hole 321 and geared sleeve 33 and the number of teeth feature of the first tooth portion 3211 and the second tooth portion 331 of rotor through hole 321, the bias that can realize geared sleeve 33 moves, and then the bias that can realize turning cylinder 1 moves.Fig. 1 with in Fig. 6, show respectively that turning cylinder 1 is in vertical state and the situation in maximum bias state of creeping into, Fig. 5 shows the sectional view after cutting open along the A-A line in Fig. 1, Fig. 7 shows the sectional view after cutting open along the B-B line in Fig. 6.From the comparison of Fig. 1 and Fig. 6, Fig. 5 and Fig. 7, can see, move and drive the bias of turning cylinder 1 to move by the bias of geared sleeve 33, can realize the deflecting function of drilling tool.
With reference to figure 1 and Fig. 2, according to embodiments of the invention, on rotor 32, offer pressure release runner 323.The entrance of pressure release runner 323 is connected with driving groove 322, and outlet is arranged on the lateral wall that the inwall with outer sleeve 2 of rotor 32 adjoins mutually.In addition, on the sidewall of outer sleeve 2, offer the by-pass prot 21 corresponding with the position of the outlet of pressure release passage 323.Like this, pressure release passage 323 can intermittently be connected with the outside of outer sleeve 2 via by-pass prot 21, and the drive fluid that makes to setover can be from driving groove 322 to flow to annular space.The biasing drive fluid entering in annular space can form pulsing jet, is conducive to improve the upward velocity of annular fluid, and the large rock-carrying ability of the body that backflows on strengthening.In addition, pressure release runner 323 can be provided with many, with the pressure release requirement of the drive fluid that adapts to setover.Wherein, the entrance of every pressure release runner 323 is connected from different driving grooves 322 respectively, on the lateral wall that the outlet of each pressure release runner 323 can be adjoined mutually with the inwall with outer sleeve 2 that is distributed in rotor 32 of presetting.Like this, can shorten the cycle that pressure release runner 323 is connected with the outside of outer sleeve 2.
With reference to figure 8, according to embodiments of the invention, biasing Control Component comprises guide portion 5.This guide portion 5 is arranged in the tube chamber of turning cylinder 1, flows to via 11 in order to guided drilling fluid.Particularly, guide portion 5 is concave shaped cavity, and the opening of this concave shaped cavity is towards the upstream side of via 11, and this concave shaped cavity is connected with via 11.According to one embodiment of present invention, concave shaped cavity can be realized by following mode: a part of wall of concave shaped cavity is the inwall of turning cylinder 1, and another part wall of concave shaped cavity can form and directly be connected on the inwall of turning cylinder 1 in addition.Wherein, the wall structure forming is in addition connected to the downstream position of via 11, is arranged in concave shaped cavity with the entrance that makes via 11.According to another embodiment of the invention, concave shaped cavity can be realized by following mode: via 11 is arranged to axis and tilts with respect to the tube wall of turning cylinder 1, and the entrance of via 11 tilts towards upstream side.Like this, concave shaped cavity becomes a part for via 11, therefore can realize concave shaped cavity and be connected with via 11.By concave shaped cavity is set, can make a part of drilling fluid be collected at via 11 places, so that control drilling fluid flows to the outside of turning cylinder 1 from the inside of turning cylinder 1.
Continue with reference to figure 8, according to embodiments of the invention, biasing Control Component also comprises pressure opening and closing valve 6.Pressure opening and closing valve 6 is arranged on via 11 places, and the aperture of pressure opening and closing valve 6 can change along with the size of the pressure of the drilling fluid in turning cylinder 1.That is, in the time that the pressure reduction of the tube wall both sides of turning cylinder 1 reaches the opening pressure of pressure opening and closing valve 6, the pressure of the drilling fluid in turning cylinder 1 is larger, and the aperture of pressure opening and closing valve 6 is larger.Therefore, by controlling the aperture that the pressure of drilling fluid just can controlled pressure switch valve 6.Further, because the aperture of pressure opening and closing valve 6 is directly corresponding with the driving force of biasing drive fluid, therefore by the aperture of controlled pressure switch valve 6, can control the angle of inclination of turning cylinder 1.That is to say, by controlling the pressure of drilling fluid, can finally realize the angle of inclination of controlling turning cylinder 1.In addition, according to a preferred embodiment of the invention, pressure opening and closing valve 6 can be arranged to by the pilot operated valve device of initial tension of spring application valve body aperture.
According to embodiments of the invention, biasing Control Component can also comprise position sensor.This position sensor can be arranged on the drill bit place of drilling tool, in order to detect and to send the signal at the angle of inclination of turning cylinder 1.Biasing Control Component can also comprise pressure-control valve, along the flow direction of drilling fluid, and on the turning cylinder 1 of the upstream position of the outer sleeve 2 that this pressure-control valve can be arranged on, thus the size of the pressure of control drilling tool fluid.Biasing Control Component can also comprise control module, and this control module is in response to the signal of position sensor, the aperture of controlled pressure control valve.That is to say, position sensor, control module and pressure-control valve form signal stream, in order to more accurately to realize the deflecting performance of drilling tool.In addition, in the time that the parameter of pressure-control valve is set, can the control action of pressure opening and closing valve 6 be incorporated in above-mentioned signal stream by the mode that correction factor is set.
On the other hand, the present invention also provides a kind of drilling tool, and above-mentioned rotary guiding device is installed on this drilling tool.In addition, this drilling tool can also dispose accurately measuring well oblique angle, the isoparametric measurement while drilling device in azimuth (MWD).This measurement while drilling device and above-mentioned rotary guiding device are used in conjunction with, and can further improve the deflecting performance of drilling tool.
Below describe by reference to the accompanying drawings the preferred embodiment of the present invention in detail; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition each the concrete technical characterictic described in above-mentioned detailed description of the invention, in reconcilable situation, can combine by any suitable mode.For fear of unnecessary repetition, the present invention is to the explanation no longer separately of various possible combinations.
In addition, between various embodiment of the present invention, also can be combined, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1. the rotary guiding device of a drilling tool, this rotary guiding device comprises the turning cylinder (1) of described drilling tool, one end of described turning cylinder (1) is connected with rotating power source, the other end is connected with drill bit, described turning cylinder (1) is the tube-like piece of flexible hollow, under the running status of described drilling tool, in described turning cylinder (1), flow and have drilling fluid; Described rotary guiding device also comprises and is centered around the outer sleeve (2) that the outside of described turning cylinder (1) and the outer wall of two ends and described turning cylinder (1) are tightly connected, and is arranged in described outer sleeve (2) to apply the biasing driven unit (3) of bias force to described turning cylinder (1); It is characterized in that, described rotary guiding device also comprise formed by described drilling fluid for driving the biasing drive fluid of described biasing driven unit (3), and biasing Control Component for described biasing drive fluid is controlled.
2. the rotary guiding device of drilling tool according to claim 1, it is characterized in that, being positioned on the inner tube wall of described outer sleeve (2) of described turning cylinder (1) offers via (11), to allow described drilling fluid to flow to described biasing driven unit (3) and form described biasing drive fluid from described turning cylinder (1) inside; And
Along the flow direction of described biasing drive fluid, described biasing driven unit (3) is arranged on the downstream position of described via (11).
3. the rotary guiding device of drilling tool according to claim 2, it is characterized in that, along described biasing drive fluid from upstream to the direction in downstream, described biasing driven unit (3) comprising: fixture, offers the drainage channel (312) of top to bottom that connects described fixture on this fixture; And tumbler, on this tumbler, offer multiple driving grooves (322);
Wherein, the opening of described driving groove (322) is towards the outlet of described drainage channel (312), and the described biasing drive fluid flowing out from described drainage channel (312) can promote the cell wall of described driving groove (322), so that described tumbler drives described turning cylinder (2) to setover.
4. the rotary guiding device of drilling tool according to claim 3, is characterized in that, described fixture comprises:
Stator (31), this stator (31) is fixedly connected on the inwall of described outer sleeve (2), and the centre of described stator (31) offers the stator through hole (311) that extends and allow described turning cylinder (1) to pass along the axial direction of described outer sleeve (2);
Locating ring (4), this locating ring (4) is arranged on the top of described stator (31), and the outer peripheral edges of described locating ring (4) are sealedly connected on the inwall of described outer sleeve (2), on the inner peripheral of described locating ring (4), offer groove along circumferential direction, the groove depth direction of this groove is extended along the radial direction of described locating ring (4); And
Sealing plate (41), sealing baffle plate (41) covers the top of described stator through hole (311), and, the outer peripheral edges of described sealing plate (41) embed in the groove of inner peripheral of described locating ring (4), and the outer wall of the inner peripheral of described sealing plate (41) and described turning cylinder (1) is tightly connected;
Wherein, described drainage channel (312) connects described locating ring (4) and described stator (31), and arranges at intervals between the bottom land of the groove of the inner peripheral of described locating ring (4) and the outer peripheral edges of described sealing plate (41).
5. the rotary guiding device of drilling tool according to claim 4, is characterized in that, described tumbler comprises:
Rotor (32), this rotor (32) is connected on the inwall of described outer sleeve (2) in the mode that can rotate around the axis of described outer sleeve (2), and the centre of described rotor (32) offers the rotor through hole (321) corresponding with described stator through hole (311) position, this rotor through hole (321) is with respect to the eccentric axis setting of described outer sleeve (2); Wherein, described driving groove (312) is arranged on the end face of described rotor (32); And
Geared sleeve (33), this geared sleeve (33) is set on the outer wall of described turning cylinder (1) and is sealed in described rotor through hole (321);
Wherein, the cross sectional area of described rotor through hole (321) is greater than the cross sectional area of described geared sleeve (33), on the hole wall of described rotor through hole (321) and on the outer wall of described geared sleeve (33), being respectively arranged with can intermeshing the first tooth portion (3211) and the second tooth portion (331), and the number of teeth of described the first tooth portion (3211) is more than the number of teeth of described the second tooth portion (331).
6. the rotary guiding device of drilling tool according to claim 5, it is characterized in that, on described rotor (32), offer pressure release runner (323), the entrance of described pressure release runner (323) is connected with described driving groove (322), and the outlet of described pressure release runner (323) is arranged on the lateral wall that the inwall with described outer sleeve (2) of described rotor (32) adjoins mutually; And
On the sidewall of described outer sleeve (2), offer the by-pass prot (21) corresponding with the position of the outlet of described pressure release passage (323), described pressure release passage (323) is intermittently connected with the outside of described outer sleeve (2) via described by-pass prot (21).
7. according to the rotary guiding device of the drilling tool described in any one in claim 2-6, it is characterized in that, described biasing Control Component comprises: guide portion (5), this guide portion (5) is arranged in the tube chamber of described turning cylinder (1), to guide described drilling fluid to flow to described via (11); And pressure opening and closing valve (6), this pressure opening and closing valve (6) is arranged on described via (11) and locates, and the aperture of described pressure opening and closing valve (6) can change along with the size of the pressure of the drilling fluid in described turning cylinder (1).
8. the rotary guiding device of drilling tool according to claim 7, it is characterized in that, described biasing Control Component also comprises: position sensor, and this position sensor is arranged on the drill bit place of described drilling tool, in order to detect and to send the signal at the angle of inclination of described turning cylinder (1); Pressure-control valve, this pressure-control valve is arranged on along the described turning cylinder (1) of the upstream position of the described outer sleeve (2) of the flow direction of described drilling fluid upper, in order to control the size of pressure of described drilling fluid; And control module, this control module, in response to the signal of described position sensor, is controlled the aperture of described pressure-control valve.
9. the rotary guiding device of drilling tool according to claim 7, is characterized in that, described guide portion (5) is concave shaped cavity, and this concave shaped cavity is connected with described via (11), and the opening of described concave shaped cavity is towards the upstream side of described via (11).
10. a drilling tool, is characterized in that, the rotary guiding device described in any one in claim 1-9 is installed on described drilling tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310313874.8A CN103334697B (en) | 2013-07-24 | 2013-07-24 | Rotary guide device of drilling tool and drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310313874.8A CN103334697B (en) | 2013-07-24 | 2013-07-24 | Rotary guide device of drilling tool and drilling tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103334697A CN103334697A (en) | 2013-10-02 |
| CN103334697B true CN103334697B (en) | 2014-07-23 |
Family
ID=49242901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310313874.8A Expired - Fee Related CN103334697B (en) | 2013-07-24 | 2013-07-24 | Rotary guide device of drilling tool and drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103334697B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105625968B (en) * | 2014-11-06 | 2018-04-13 | 通用电气公司 | Guidance system and guidance method |
| CN106761461A (en) * | 2017-01-17 | 2017-05-31 | 成都聚智工业设计有限公司 | Oil well prospecting bit structure |
| CN107386998B (en) * | 2017-08-14 | 2019-09-20 | 中国海洋石油集团有限公司 | A kind of adjustable-angle formula whipstock guiding taper joint |
| CN110410008A (en) * | 2019-07-22 | 2019-11-05 | 西南石油大学 | A kind of static state directional type hydraulic rotating steering tool |
| CN114109256A (en) * | 2020-09-01 | 2022-03-01 | 中国石油化工股份有限公司 | Well drilling directional device |
| CN112360350B (en) * | 2020-12-10 | 2022-01-04 | 西南石油大学 | Mechanical rotary guiding drilling tool |
| CN112834363B (en) * | 2021-02-25 | 2021-11-19 | 中国科学院地质与地球物理研究所 | Hydraulic system and alternating stress fatigue test equipment |
| CN114016913A (en) * | 2021-11-01 | 2022-02-08 | 西安石油大学 | Directional guide nipple offset adjusting device structure of rotary guide drilling tool |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2597650Y (en) * | 2002-10-29 | 2004-01-07 | 胜利石油管理局钻井工艺研究院 | Adjustable rotary guide disk valve controlling mechanism |
| CN1602384A (en) * | 2001-12-14 | 2005-03-30 | 瓦萨拉股份公司 | Liquid driven downhole drilling machine |
| WO2007138314A1 (en) * | 2006-05-01 | 2007-12-06 | Geolink (Uk) Limited | Rotary steerable tool |
| CN201943580U (en) * | 2011-01-25 | 2011-08-24 | 陈林 | Mechanical guide drilling jig |
-
2013
- 2013-07-24 CN CN201310313874.8A patent/CN103334697B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1602384A (en) * | 2001-12-14 | 2005-03-30 | 瓦萨拉股份公司 | Liquid driven downhole drilling machine |
| CN2597650Y (en) * | 2002-10-29 | 2004-01-07 | 胜利石油管理局钻井工艺研究院 | Adjustable rotary guide disk valve controlling mechanism |
| WO2007138314A1 (en) * | 2006-05-01 | 2007-12-06 | Geolink (Uk) Limited | Rotary steerable tool |
| CN201943580U (en) * | 2011-01-25 | 2011-08-24 | 陈林 | Mechanical guide drilling jig |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103334697A (en) | 2013-10-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103334697B (en) | Rotary guide device of drilling tool and drilling tool | |
| RU2607827C1 (en) | Control over directed drilling using flexible drive shaft | |
| EP2707565B1 (en) | Device and method for directional drilling | |
| CN102282333B (en) | Valve-controlled downhole motor | |
| CN110029937B (en) | Screw-driven rotary steering drilling tool | |
| RU2016135929A (en) | BUTTERFLY TOOL BITTING CONTROL WITH REDUCED FRICTION OF A DRILL RING | |
| CN102953682B (en) | Tilting tray plunger type rotary guide well drilling tool | |
| CN200982164Y (en) | Intelligently controlled diameter-variable stabilizer | |
| CN105275394A (en) | Novel angle controllable rotation guiding tool | |
| RU2618535C2 (en) | Method for rotational controlled drilling assembly control with channels with varying fluid flow | |
| US20200208511A1 (en) | Constant amplitude adjusting method and system for pressure pulse of drilling tool | |
| CN111287655A (en) | Actuating mechanism for rotary guiding device and rotary guiding device thereof | |
| CN202220554U (en) | Inclined disk plunger type rotary guide well-drilling tool | |
| CN102733755B (en) | A kind of rotary drilling guider | |
| CN113047772A (en) | Tool and method for performing directional operation in cooperation with downhole power drilling tool | |
| KR101645588B1 (en) | A steering for a rotary steerable system | |
| CN212716477U (en) | Guiding drilling device | |
| CN203050652U (en) | Underground electric control stepless flow control valve | |
| CN111927340A (en) | Guiding drilling device | |
| CN107905731A (en) | Rotary steerable drilling equipment | |
| CN111022017A (en) | Manual fracturing and production wellhead device and using method thereof | |
| CN102839947B (en) | Subsurface electric control stepless position adjusting structure | |
| CN211598517U (en) | Mechanical quasi-static pushing vertical drilling tool for coring | |
| CN203701980U (en) | Diameter-variable underreaming drill and drilling machine | |
| CN111609125B (en) | Multi-gear control system based on hydraulic drive |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 Termination date: 20160724 |