CN108915613A - A kind of hydraulic variable diameter stabilizer - Google Patents
A kind of hydraulic variable diameter stabilizer Download PDFInfo
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- CN108915613A CN108915613A CN201810838363.0A CN201810838363A CN108915613A CN 108915613 A CN108915613 A CN 108915613A CN 201810838363 A CN201810838363 A CN 201810838363A CN 108915613 A CN108915613 A CN 108915613A
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- plunger
- stabilizer
- wing plate
- diameter
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1078—Stabilisers or centralisers for casing, tubing or drill pipes
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1042—Elastomer protector or centering means
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- Life Sciences & Earth Sciences (AREA)
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- Mining & Mineral Resources (AREA)
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- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
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- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention patent provides a kind of hydraulic variable diameter stabilizer, is mainly made of stabilizer shell, control pipe, upper seal support, pressing plate, plunger, middle web, top wing plate, spring and bottom sealing socket.When compound drilling, pipe downlink is controlled, upper seal section is managed in control and control manages lower seal section and respectively enters upper seal support and bottom sealing socket, and drilling fluid is directly entered lower drilling tool through controlling pipe mesoporous, plunger, middle web and top wing plate do not extend out, and hydraulic variable diameter stabilizer is equivalent to drilling string stabilizer.When slipping drilling, control pipe uplink, upper seal section is managed in control and control manages lower seal section respectively away from upper seal support and bottom sealing socket, drilling liquid pressure passes to plunger through annular space between control pipe and stabilizer shell mesoporous, plunger, middle web and top wing plate is pushed to stretch out, top wing plate screw die imbeds the borehole wall, and helicoid hydraulic motor reaction torque is prevented to be communicated up, helicoid hydraulic motor untwisting angle is eliminated, it is difficult thoroughly to solve helicoid hydraulic motor slipping drilling orientation.
Description
Technical field
The invention patent belongs to oil drilling machine field, and in particular to a kind of hydraulic variable diameter stabilizer.As screw drill
Have slipping drilling auxiliary tool, hydraulic variable diameter stabilizer is used to eliminate helicoid hydraulic motor untwisting angle, solve directional well (or inclined shaft) and
Positive displacement drill for horizontal well slipping drilling orientation is difficult, improves directional drilling rate of penetration, reduces directional drilling operating cost.
Background technique
It the use of helicoid hydraulic motor directional drilling is adjustment well track during directional well (or inclined shaft) and horizontal well drilling
Or change the important means of wellbore space drilling direction.When directional drilling, helicoid hydraulic motor cannot rotate, it is necessary to forward slip and logical
Screw drill transmission shaft driving drill bit broken rock drilling is crossed, therefore, directional drilling is also referred to as slipping drilling.When slipping drilling, work as spiral shell
When bar drill transmission shaft drives drill bit broken rock drilling, helicoid hydraulic motor shell reaction torque drives helicoid hydraulic motor and top drilling tool counterclockwise
Rotation until reaction torque by borehole wall mill resistance counteracting until, it is anti-twisted that helicoid hydraulic motor rotated counterclockwise by angle is called helicoid hydraulic motor by we
Therefore helicoid hydraulic motor untwisting angle must be taken into consideration when putting tool-face in angle, in other words, actual tool face is equal to wellbore flash, tool face angle
The sum of with helicoid hydraulic motor untwisting angle three.
During slipping drilling, since the factors such as well track, drill assembly, bite type and mud property influence,
There is orientation difficulty in various degree in different wellbores or the same wellbore difference well section, in other words, tool-face is unstable, seriously affect
Slipping drilling operating efficiency and rate of penetration.Tool-face shakiness is mainly related with spiral drilling rig structure.For certain specifications and models
For helicoid hydraulic motor, when one timing of drilling fluid displacement, helicoid hydraulic motor output power is a definite value.When slipping drilling, if
Even to send brill, helicoid hydraulic motor output torque is relatively stable, and untwisting angle is basically unchanged, and tool-face is just relatively stable；If increase (or subtract
Bit pressure less), helicoid hydraulic motor output torque are increase accordingly (or reduction), and untwisting angle also increases accordingly (or reduction), and tool-face is with regard to phase
To shakiness.
The invention patent proposes a kind of hydraulic variable diameter stabilizer, is typically mounted on helicoid hydraulic motor and non-magnetic drilling tool top,
It prevents helicoid hydraulic motor shell reaction torque from being communicated up when slipping drilling, eliminates helicoid hydraulic motor untwisting angle.There is no helicoid hydraulic motor anti-twisted
Angle, tool-face would not be unstable because of the variation of helicoid hydraulic motor untwisting angle, and therefore, hydraulic variable diameter stabilizer can thoroughly solve screw drill
It is difficult to have slipping drilling orientation.
Patent of invention content
The invention patent belongs to oil drilling machine field, and in particular to a kind of hydraulic variable diameter stabilizer.As screw drill
Have slipping drilling auxiliary tool, hydraulic variable diameter stabilizer is used to eliminate helicoid hydraulic motor untwisting angle, solve directional well (or inclined shaft) and
Positive displacement drill for horizontal well slipping drilling orientation is difficult, improves directional drilling rate of penetration, reduces directional drilling operating cost.
The invention patent use specific technical solution be：
Hydraulic variable diameter stabilizer is mainly by stabilizer shell, control pipe, upper seal support, pressing plate, plunger, middle web, top
Portion's wing plate, spring and bottom sealing socket composition.
Stabilizer shell is mesoporous, straight prismatic, thick-wall metal pipes.From the point of view of inside, mesoporous mid diameter is relatively small, and two
Hold diameter relatively large, for installing upper seal support and bottom sealing socket, control drilling liquid pressure transmitting.Externally, both ends
It is screw thread, upper end is for connecting rotational slide boring means, and for connecting lower drilling tool, middle part is centering edge, centering edge for lower end
Diameter is slightly less than borehole diameter, and chamfering is processed at tungsten carbide button's block at the top of centering edge, righting barrow both ends, and centering edge is certainly export-oriented
Inside successively it is machined with pressing plate track, wing plate storehouse and plunger case.From the point of view of attached drawing 1, each centering edge processes three plunger cases, uses
In installation plunger, concrete application, one plunger case of processing or two columns can be designed according to different wellbore specifications and wing plate thrust
Plug cylinder or four plunger cases or multiple plunger cases are specifically considered as a whole when designing processing.From the point of view of attached drawing 2, stabilizer shell
Body is circumferential uniformly to process three centering edges, in concrete application, can design processing four centering edges or five according to different wellbore specifications
A centering edge or multiple centering edges are specifically considered as a whole when designing processing.
Control pipe is mesoporous, thick-wall metal pipes.Control pipe is mounted on transmission shaft lower end in rotational slide boring means, and with
Transmission shaft movement is transmitted in rotational slide boring means to control drilling liquid pressure, therefore, control tube portion is drawn out in attached drawing 1
Section.From the point of view of inside, median pore diameter is identical, for passing through drilling fluid.Externally, upper diameter is relatively large, lower part
Diameter is relatively small, and identical as upper seal support and bottom sealing socket median pore diameter respectively.From the point of view of attached drawing 1, control pipe with it is upper close
Envelope seat and bottom sealing socket overlay segment can be described as seal section under the upper seal section of control pipe is managed with control, and undressed seal groove, nothing
Sealing ring, in concrete application, upper seal section is managed in control and lower seal section is managed in upper seal support, control and bottom sealing socket can be according to couple
Mating grinding-in respectively, alternatively, upper seal section is managed in control and control manages lower seal section and can design processing multiple tracks, a variety of sealings
Slot is installed multiple-sealed circle or sealing ring combination, is specifically considered as a whole when designing processing.
Upper seal support is mesoporous, thin metallic tubd.From the point of view of inside, median pore diameter is identical as control pipe top outer diameter.From
From the point of view of outside, upper diameter is relatively large and is external screw thread, and for being fixedly mounted, lower diameter is relatively small, close for smearing
Seal rouge.From the point of view of attached drawing 1, upper seal support does not install sealing ring without seal groove, in concrete application, can add in upper seal support lower part
Work seal groove is specifically considered as a whole when designing processing alternatively, seal groove can be processed in stabilizer shell mesoporous corresponding position.
Pressing plate is band dovetail shaped flank, top dimpling, rectangle sheet metal.Top is convex arc surface along its length,
Arc surface diameter is identical as centering edge diameter and is slightly less than borehole diameter, and bottom is machined with spring groove, for spring to be fixedly mounted,
Dovetail shaped flank is processed into two sides, and technical specification is identical as centering edge pressing plate track, and front end is plane, and rear end is chamfering, and
Technical specification is identical as centering edge chamfering.From the point of view of attached drawing 1, pressing plate is fixedly mounted on stabilizer shell by screw, specifically
In, pressing plate passes through dovetail shaped flank first and injects centering edge pressing plate track, and screw is recycled to be fixedly mounted, and screw hole can be
Cylindric stepped hole can be cylindric through-hole, specifically consider as a whole when designing processing.
Plunger is solid, metal cylinder, and diameter and height are identical as plunger case.
Middle web is arc chord angle, rectangle sheet metal.Middle part is machined with screw hole, for the top wing to be fixedly mounted
Plate, both ends are machined with cylindric spring base, and for spring to be fixedly mounted, the sum of spring base depth and spring groove depth are equal to spring
Compress residual altitude.
Top wing plate is made of wing plate body, screw hole and screw die.Wing plate body is screw hole and screw die carrier, is that top is micro-
Convex, rectangle sheet metal, length is relatively large, and width and height are relatively small.Screw hole is stepped cylinder on wing plate body
Hole, for being coupled top wing plate and middle web.Screw die apposition is overall structure, screw die top at the top of wing plate body and with wing plate body
Portion is rectangular planes, and width is extremely narrow, is similar to blade, is conducive to screw die and imbeds and cut the borehole wall.
Bottom sealing socket is mesoporous, thin metallic tubd.From the point of view of inside, median pore diameter is identical as control pipe lower outer diameter.From
From the point of view of outside, upper diameter is relatively small, and for smearing stop-leak compound, lower diameter is relatively large and is external screw thread, for fixing
Installation.From the point of view of attached drawing 1, bottom sealing socket does not install sealing ring without seal groove, in concrete application, can add on bottom sealing socket top
Work seal groove is specifically considered as a whole when designing processing alternatively, seal groove can be processed in stabilizer shell mesoporous corresponding position.
It is first with screw that top wing plate and middle web connection is integral when assembling；Then, successively plunger, top
Portion's wing plate and middle web, spring are installed into plunger case and wing plate storehouse；Again, pressing plate is injected from two end clamp plate track of centering edge,
Pressing plate is fixed using screw, whole plungers, middle web, top wing plate, spring and pressing plate are installed in centering edge accordingly；
Finally, bottom sealing socket and upper seal support is fixedly mounted, control tubulation be installed in rotational slide boring means transmission shaft lower end and
It is inserted into stabilizer shell mesoporous, connects rotational slide boring means and hydraulic variable diameter stabilizer.Assemble environment and condition not
Together, hydraulic variable diameter stabilizer assembling sequence and method may be different, specifically consider as a whole in assembling.
For plunger case and plunger, sealing ring is not installed, is specifically answered without seal groove between plunger case and plunger in attached drawing
In, plunger case and plunger, alternatively, seal groove can be processed on plunger case or plunger, can pacify according to the mating grinding-in of couple
Sealing ring is filled, is specifically considered as a whole when designing processing；Secondly, in attached drawing plunger case directly processed on stabilizer shell and
At, in concrete application, major diameter plunger cylinder seat can be first processed on stabilizer shell, then install plunger case set and plunger, just
In repairing and adjusting wing plate thrust, specifically considered as a whole when designing processing；Again, attached drawing center pillar undressed relief hole beyond the Great Wall,
It may cause in plunger case and build the pressure, plunger can not be withdrawn, and in concrete application, relief hole can be processed on plunger, alternatively, mountable let out
Nozzle is pressed, is specifically considered as a whole when designing processing.
For middle web, the undressed dredging flow groove in middle web bottom in attached drawing, if processing relief hole on plunger
Or installation pressure release nozzle, then, middle web bottom must correspond to processing dredging flow groove along its length and communicate with spring base, it is ensured that
Drilling fluid is overflowed by gap between plunger relief hole, middle web dredging flow groove, top wing plate and pressing plate in plunger case.
Hydraulic variable diameter stabilizer can be simplified to hydraulic variable diameter drilling string stabilizer, mainly by stabilizer shell, pressing plate, plunger,
Middle web, top wing plate and spring composition, still, need to be suitably modified stabilizer shell, middle web and top wing plate.It is first
First, stabilizer shell threaded upper ends are converted into that top drilling tool thread can be connected, stabilizer shell mesoporous suitably simplifies, without peace
Load onto seal receptacle and bottom sealing socket；Secondly, top wing plate screw die is modified to arc surface, tungsten carbide button's block is improved wear-resisting
Property；Finally, adjustment middle web and top wing plate thickness, it is ensured that it is best stabilized device diameter that top wing plate, which stretches out maximum gauge,.
The beneficial effect of the invention patent is：During directional well (or inclined shaft) and horizontal well drilling, hydraulic variable diameter is steady
Determine device and is typically mounted to helicoid hydraulic motor and non-magnetic drilling tool (built-in MWD/LWD instrument) top.When compound drilling, pipe is controlled with rotation
Transmission shaft downlink in slipping drilling tool, upper seal section is managed in control and control manage lower seal section respectively enter upper seal support and under it is close
Seat is sealed, drilling fluid is directly entered lower drilling tool through controlling pipe mesoporous, and plunger, middle web and top wing plate do not extend out, hydraulic change
Diameter stabilizer is equivalent to drilling string stabilizer.When slipping drilling, control pipe is with transmission shaft uplink in rotational slide boring means, control
Seal section and control manage lower seal section respectively away from upper seal support and bottom sealing socket on pipe, and drilling liquid pressure is managed and stablized through control
Annular space passes to plunger between device shell mesoporous, and plunger, middle web and top wing plate is pushed to stretch out, and top wing plate screw die imbeds well
Wall prevents helicoid hydraulic motor reaction torque from being communicated up, and eliminates helicoid hydraulic motor untwisting angle, thoroughly solves helicoid hydraulic motor slipping drilling orientation
It is difficult.
Hydraulic variable diameter drilling string stabilizer is mainly used in high-inclination directional well, super extended reach directional well and horizontal bottom and bores
In tool combination.In drilling process, drilling fluid pressure difference pushes plunger, middle web and top wing plate to stretch out, hydraulic variable diameter drill string
Stabilizer is equivalent to common drilling string stabilizer, moreover, it is most that the top wing plate for calculating and adjusting through drilling engineer, which stretches out diameter,
Good stabilizer diameter reduces drilling tool mill resistance, reduces drilling tool backing pressure.After hydraulic variable diameter drilling string stabilizer plays ground, according to top
Portion's wing plate degree of wear can make by adjusting middle web or replacement top wing plate, hydraulic variable diameter drilling string stabilizer back into well
With the maintenance of reduction drilling string stabilizer or acquisition cost.
Detailed description of the invention
Attached drawing 1 is the structural schematic diagram of the invention patent hydraulic variable diameter stabilizer.
Description of symbols：1- stabilizer shell, 2- control pipe, the centre 3- upper seal support, 4- pressing plate, 5- plunger, the 6- wing
Wing plate, 8- spring, 9- bottom sealing socket at the top of plate, 7-.
Attached drawing 2 is the A-A sectional view of the invention patent hydraulic variable diameter stabilizer.
Description of symbols：1- stabilizer shell, 2- control pipe, the top 5- plunger, 6- middle web, 7- wing plate.
Specific embodiment
Hydraulic variable diameter stabilizer is mainly by stabilizer shell (1), control pipe (2), upper seal support (3), pressing plate (4), plunger
(5), middle web (6), top wing plate (7), spring (8) and bottom sealing socket (9) composition.
The invention patent is described further with reference to the accompanying drawings and examples.
Stabilizer shell (1) is mesoporous, straight prismatic, thick-wall metal pipes.From the point of view of inside, mesoporous mid diameter is relatively
Small, both ends diameter is relatively large, for installing upper seal support (3) and bottom sealing socket (9), control drilling liquid pressure transmitting.From outer
From the point of view of portion, both ends are screw threads, and upper end is for connecting rotational slide boring means, and for connecting lower drilling tool, middle part is to help for lower end
Positive rib, centering edge diameter are slightly less than borehole diameter, and chamfering is processed at tungsten carbide button's block, righting barrow both ends at the top of centering edge,
Centering edge is successively machined with pressing plate track, wing plate storehouse and plunger case from the outside to the core.From the point of view of attached drawing 1, each centering edge is processed
Three plunger cases in concrete application, can design processing one according to different wellbore specifications and wing plate thrust for installing plunger (5)
A plunger case or two plunger cases or four plunger cases or multiple plunger cases are specifically considered as a whole when designing processing.From attached
From the point of view of Fig. 2, stabilizer shell (1) is circumferential uniformly to process three centering edges, in concrete application, can be designed according to different wellbore specifications
Four centering edges or five centering edges or multiple centering edges are processed, is specifically considered as a whole when designing processing.
Control pipe (2) is mesoporous, thick-wall metal pipes.Control pipe (2) is mounted in rotational slide boring means under transmission shaft
End, and drilling liquid pressure transmitting is controlled with transmission shaft movement in rotational slide boring means, therefore, control is drawn out in attached drawing 1
Tubulation (2) cut-away section.From the point of view of inside, median pore diameter is identical, for passing through drilling fluid.Externally, upper diameter phase
To larger, lower diameter is relatively small, and identical as upper seal support (3) and bottom sealing socket (9) median pore diameter respectively.From attached drawing 1
From the point of view of, control pipe (2) and upper seal support (3) and bottom sealing socket (9) overlay segment can be described as control and manage under upper seal section and control pipe
Seal section, and undressed seal groove, no sealing ring, in concrete application, upper seal section and upper seal support (3), control are managed in control
Mating grinding-in can be distinguished according to couple by managing lower seal section and bottom sealing socket (9), alternatively, upper seal section and control pipe are managed in control
Lower seal section can design processing multiple tracks, a variety of seal grooves, multiple-sealed circle or sealing ring combination be installed, specifically when designing processing
It considers as a whole.
Upper seal support (3) is mesoporous, thin metallic tubd.From the point of view of inside, median pore diameter manages (2) top outer diameter phase with control
Together.Externally, upper diameter is relatively large and is external screw thread, and for being fixedly mounted, lower diameter is relatively small, for applying
Smear stop-leak compound.From the point of view of attached drawing 1, upper seal support (3) does not install sealing ring without seal groove, can be in upper seal support in concrete application
(3) lower part processes seal groove, alternatively, seal groove can be processed in stabilizer shell (1) mesoporous corresponding position, specifically processes in design
When consider as a whole.
Pressing plate (4) is band dovetail shaped flank, top dimpling, rectangle sheet metal.Top is dome arc along its length
Face, arc surface diameter is identical as centering edge diameter and is slightly less than borehole diameter, and bottom is machined with spring groove, for bullet to be fixedly mounted
Spring (8), dovetail shaped flank is processed into two sides, and technical specification is identical as centering edge pressing plate track, and front end is plane, and rear end is down
Angle, and technical specification is identical as centering edge chamfering.From the point of view of attached drawing 1, pressing plate (4) is fixedly mounted on stabilizer shell by screw
(1) on, in concrete application, pressing plate (4) injects centering edge pressing plate track by dovetail shaped flank first, recycles the fixed peace of screw
Dress, screw hole can be cylindric stepped hole, can be cylindric through-hole, specifically consider as a whole when designing processing.
Plunger (5) is solid, metal cylinder, and diameter and height are identical as plunger case.
Middle web (6) is arc chord angle, rectangle sheet metal.Middle part is machined with screw hole, for top to be fixedly mounted
Wing plate (7), both ends are machined with cylindric spring base, for spring (8), the sum of spring base depth and spring groove depth to be fixedly mounted
Residual altitude is compressed equal to spring (8).
Top wing plate (7) is made of wing plate body, screw hole and screw die.Wing plate body is screw hole and screw die carrier, is top
Dimpling, rectangle sheet metal, length is relatively large, and width and height are relatively small.Screw hole is ladder-like circle on wing plate body
Post holes, for being coupled top wing plate (7) and middle web (6).Screw die apposition is whole knot at the top of wing plate body and with wing plate body
Structure, screw die top is rectangular planes, and width is extremely narrow, is similar to blade, is conducive to screw die and imbeds and cut the borehole wall.
Bottom sealing socket (9) is mesoporous, thin metallic tubd.From the point of view of inside, median pore diameter manages (2) lower outer diameter phase with control
Together.Externally, upper diameter is relatively small, and for smearing stop-leak compound, lower diameter is relatively large and is external screw thread, is used for
It is fixedly mounted.From the point of view of attached drawing 1, bottom sealing socket (9) does not install sealing ring without seal groove, can be in bottom sealing socket in concrete application
(9) top processes seal groove, alternatively, seal groove can be processed in stabilizer shell (1) mesoporous corresponding position, specifically processes in design
When consider as a whole.
It is first with screw that top wing plate (7) and middle web (6) connection is integral when assembling；Then, successively column
Plug (5), middle web (6) and top wing plate (7), spring (8) are installed into plunger case and wing plate storehouse；Again, from centering edge both ends
Pressing plate track injects pressing plate (4), pressing plate (4) is fixed using screw, accordingly by whole plungers (5), middle web (6), top
Wing plate (7), spring (8) and pressing plate (4) are installed in centering edge；Finally, bottom sealing socket (9) and upper seal support (3) is fixedly mounted,
Control tubulation (2) is installed to transmission shaft lower end in rotational slide boring means and is inserted into stabilizer shell (1) mesoporous, connects
Rotational slide boring means and hydraulic variable diameter stabilizer.It is different to assemble environment and condition, hydraulic variable diameter stabilizer assembling sequence and
Method may be different, specifically consider as a whole in assembling.
For plunger case and plunger (5), without seal groove sealing ring is not installed between plunger case and plunger (5) in attached drawing,
In concrete application, plunger case and plunger (5) can be according to the mating grinding-ins of couple, alternatively, can add on plunger case or plunger (5)
Work seal groove installs sealing ring, specifically considers as a whole when designing processing；Secondly, plunger case is directly in stabilizer shell in attached drawing
Body is process on (1), and in concrete application, major diameter plunger cylinder seat, then mounting post can be first processed on stabilizer shell (1)
Plug cylinder set and plunger (5), easy to repair and adjustment wing plate thrust, are specifically considered as a whole when designing processing；Again, attached drawing center pillar
Undressed relief hole on (5) is filled in, may cause in plunger case and build the pressure, plunger (5) can not be withdrawn, in concrete application, on plunger (5)
Processable relief hole, alternatively, mountable pressure release nozzle, is specifically considered as a whole when designing processing.
For middle web (6), the undressed dredging flow groove in middle web (6) bottom in attached drawing, if added on plunger (5)
Work relief hole or installation pressure release nozzle, then, middle web (6) bottom must correspond to processing dredging flow groove and and spring along its length
Seat communicates, it is ensured that drilling fluid passes through between plunger relief hole, middle web dredging flow groove, top wing plate (7) and pressing plate (4) in plunger case
It overflows in gap.
Hydraulic variable diameter stabilizer can be simplified to hydraulic variable diameter drilling string stabilizer, mainly by stabilizer shell (1), pressing plate (4),
Plunger (5), middle web (6), top wing plate (7) and spring (8) composition, still, need to be suitably modified stabilizer shell (1), in
Between wing plate (6) and top wing plate (7).Firstly, stabilizer shell (1) threaded upper ends are converted into that top drilling tool thread can be connected,
Stabilizer shell (1) mesoporous suitably simplifies, without installing upper seal support (3) and bottom sealing socket (9)；Secondly, top wing plate (7)
Screw die is modified to arc surface, and tungsten carbide button's block improves wearability；Finally, adjustment middle web (6) and top wing plate (7)
Thickness, it is ensured that it is best stabilized device diameter that top wing plate (7), which stretches out maximum gauge,.
Embodiment 1
During directional well (or inclined shaft) and horizontal well drilling, hydraulic variable diameter stabilizer be typically mounted to helicoid hydraulic motor and
Non-magnetic drilling tool (built-in MWD/LWD instrument) top.
When compound drilling, for control pipe (2) with transmission shaft downlink in rotational slide boring means, upper seal section and control are managed in control
Seal section respectively enters upper seal support (3) and bottom sealing socket (9) under tubulation, and drilling fluid is directly entered down through control pipe (2) mesoporous
Portion's drilling tool, plunger (5), middle web (6) and top wing plate (7) do not extend out, and hydraulic variable diameter stabilizer is equivalent to drilling string stabilizer.
When slipping drilling, control pipe (2) with transmission shaft uplink in rotational slide boring means, manage close under upper seal section and control pipe by control
Section is sealed respectively away from upper seal support (3) and bottom sealing socket (9), drilling liquid pressure manages (2) and stabilizer shell (1) mesoporous through control
Between annular space pass to plunger (5), push plunger (5), middle web (6) and top wing plate (7) stretching, top wing plate screw die imbeds
The borehole wall prevents helicoid hydraulic motor reaction torque from being communicated up, and eliminates helicoid hydraulic motor untwisting angle, and it is fixed thoroughly to solve helicoid hydraulic motor slipping drilling
To difficulty.
Embodiment 2
Hydraulic variable diameter drilling string stabilizer is mainly used in high-inclination directional well, super extended reach directional well and horizontal bottom and bores
In tool combination.
In drilling process, drilling fluid pressure difference pushes plunger (5), middle web (6) and top wing plate (7) to stretch out, hydraulic
Variable diameter drilling string stabilizer is equivalent to common drilling string stabilizer, moreover, the top wing plate (7) for calculating and adjusting through drilling engineer is stretched
Diameter is best stabilized device diameter out, reduces drilling tool mill resistance, reduces drilling tool backing pressure.When hydraulic variable diameter drilling string stabilizer plays ground
Afterwards, according to top wing plate (7) degree of wear, by adjusting middle web (6) or replacement top wing plate (7), hydraulic variable diameter drill string
Stabilizer can be used back into well, reduce drilling string stabilizer maintenance or acquisition cost.
It is above only preferred examples to the explanation of the invention patent, can not be understood to the invention patent technical solution
The limitation of content.In a particular application, technical staff is likely to require to be made to adjust and change individually the above content as the case may be
Become, the adjustment and change should all be fallen among the protection scope of the invention patent appended claims.
Claims (6)
1. hydraulic variable diameter stabilizer is mainly by stabilizer shell (1), control pipe (2), upper seal support (3), pressing plate (4), plunger
(5), middle web (6), top wing plate (7), spring (8) and bottom sealing socket (9) composition；
Stabilizer shell (1) is mesoporous, straight prismatic, thick-wall metal pipes；From the point of view of inside, mesoporous mid diameter is relatively small, and two
Hold diameter relatively large, for installing upper seal support (3) and bottom sealing socket (9)；Externally, both ends are screw threads, and middle part is
Centering edge, centering edge diameter are slightly less than borehole diameter, and tungsten carbide button's block at the top of centering edge, righting barrow both ends are processed into down
Angle, centering edge are successively machined with pressing plate track, wing plate storehouse and plunger case from the outside to the core；From the point of view of attached drawing 1, each centering edge adds
Three plunger cases of work in concrete application, can design processing according to different wellbore specifications and wing plate thrust for installing plunger (5)
One plunger case or two plunger cases or four plunger cases or multiple plunger cases are specifically considered as a whole when designing processing；From
From the point of view of attached drawing 2, stabilizer shell (1) is circumferential uniformly to process three centering edges, in concrete application, can be set according to different wellbore specifications
Meter four centering edges of processing or five centering edges or multiple centering edges, are specifically considered as a whole when designing processing；
Control pipe (2) is mesoporous, thick-wall metal pipes；From the point of view of inside, median pore diameter is identical；Externally, upper diameter phase
To larger, lower diameter is relatively small, and identical as upper seal support (3) and bottom sealing socket (9) median pore diameter respectively；From attached drawing 1
From the point of view of, control pipe (2) and upper seal support (3) and bottom sealing socket (9) overlay segment can be described as control and manage under upper seal section and control pipe
Seal section, and undressed seal groove, no sealing ring, in concrete application, upper seal section and upper seal support (3), control are managed in control
Mating grinding-in can be distinguished according to couple by managing lower seal section and bottom sealing socket (9), alternatively, upper seal section and control pipe are managed in control
Lower seal section can design processing multiple tracks, a variety of seal grooves, multiple-sealed circle or sealing ring combination be installed, specifically when designing processing
It considers as a whole；
Upper seal support (3) is mesoporous, thin metallic tubd；From the point of view of inside, median pore diameter is identical as control pipe (2) top outer diameter；
Externally, upper diameter is relatively large and is external screw thread, and lower diameter is relatively small；From the point of view of attached drawing 1, upper seal support
(3) without seal groove, sealing ring is not installed, in concrete application, seal groove can be processed in upper seal support (3) lower part, alternatively, can be steady
Determine device shell (1) mesoporous corresponding position processing seal groove, is specifically considered as a whole when designing processing；
Pressing plate (4) is band dovetail shaped flank, top dimpling, rectangle sheet metal；Top is convex arc surface along its length, circle
Cambered surface diameter is identical as centering edge diameter and is slightly less than borehole diameter, and bottom is machined with spring groove, and dovetail shaped side is processed into two sides
The wing, and technical specification is identical as centering edge pressing plate track, front end is plane, and rear end is chamfering, and technical specification is fallen with centering edge
Angle is identical；From the point of view of attached drawing 1, pressing plate (4) is fixedly mounted on stabilizer shell (1) by screw, in concrete application, pressing plate
(4) centering edge pressing plate track is injected by dovetail shaped flank first, recycles screw to be fixedly mounted, screw hole can be cylindric rank
Terraced hole can be cylindric through-hole, specifically consider as a whole when designing processing；
Plunger (5) is solid, metal cylinder, and diameter and height are identical as plunger case；
Middle web (6) is arc chord angle, rectangle sheet metal；Middle part is machined with screw hole, and both ends are machined with cylindric spring
Seat, the sum of spring base depth and spring groove depth are equal to spring (8) and compress residual altitude；
Top wing plate (7) is made of wing plate body, screw hole and screw die；Wing plate body is screw hole and screw die carrier, be top dimpling,
Rectangle sheet metal, length is relatively large, and width and height are relatively small；Screw hole is stepped cylinder hole on wing plate body；
Screw die apposition is overall structure at the top of wing plate body and with wing plate body, is rectangular planes at the top of screw die, width is extremely narrow, is similar to knife
Sword；
Bottom sealing socket (9) is mesoporous, thin metallic tubd；From the point of view of inside, median pore diameter is identical as control pipe (2) lower outer diameter；
Externally, upper diameter is relatively small, and lower diameter is relatively large and is external screw thread；From the point of view of attached drawing 1, bottom sealing socket
(9) without seal groove, sealing ring is not installed, in concrete application, seal groove can be processed on bottom sealing socket (9) top, alternatively, can be steady
Determine device shell (1) mesoporous corresponding position processing seal groove, is specifically considered as a whole when designing processing；
It is first with screw that top wing plate (7) and middle web (6) connection is integral when assembling；Then, successively plunger
(5), middle web (6) and top wing plate (7), spring (8) are installed into plunger case and wing plate storehouse；Again, from two side pressure of centering edge
Plate track injects pressing plate (4), pressing plate (4) is fixed using screw, accordingly by whole plungers (5), middle web (6), the top wing
Plate (7), spring (8) and pressing plate (4) are installed in centering edge；Finally, bottom sealing socket (9) and upper seal support (3) is fixedly mounted,
Control pipe (2) is installed to transmission shaft lower end in rotational slide boring means and is inserted into stabilizer shell (1) mesoporous, connects rotation
Turn slipping drilling tool and hydraulic variable diameter stabilizer；Assemble environment and condition difference, hydraulic variable diameter stabilizer assembling sequence and side
Method may be different, specifically consider as a whole in assembling.
2. a kind of hydraulic variable diameter stabilizer according to claim 1, it is characterised in that：Plunger case and plunger (5) are come
It says, without seal groove between plunger case and plunger (5) in attached drawing, do not install sealing ring, in concrete application, plunger case and plunger (5) can
According to the mating grinding-in of couple, alternatively, seal groove can be processed on plunger case or plunger (5), sealing ring is installed, is specifically being set
It is considered as a whole when meter processing；Secondly, plunger case is directly process on stabilizer shell (1) in attached drawing, it, can in concrete application
Major diameter plunger cylinder seat is first processed on stabilizer shell (1), then plunger case set and plunger (5) are installed, easy to repair and tune
Whole wing plate thrust is specifically considered as a whole when designing processing；Again, undressed relief hole on plunger (5) in attached drawing, may cause
It builds the pressure in plunger case, plunger (5) can not be withdrawn, and in concrete application, relief hole can be processed on plunger (5), alternatively, mountable pressure release
Nozzle is specifically considered as a whole when designing processing.
3. a kind of hydraulic variable diameter stabilizer according to claim 1, it is characterised in that：It is attached for middle web (6)
The undressed dredging flow groove in middle web (6) bottom in figure, if processing relief hole or installation pressure release nozzle on plunger (5), in
Between wing plate (6) bottom must correspond to processing along its length and dredging flow groove and communicated with spring base, it is ensured that drilling fluid passes through in plunger case
Gap is overflowed between plunger relief hole, middle web dredging flow groove, top wing plate (7) and pressing plate (4).
4. a kind of hydraulic variable diameter stabilizer according to claim 1, it is characterised in that：Hydraulic variable diameter stabilizer can be simplified to
Hydraulic variable diameter drilling string stabilizer, mainly by stabilizer shell (1), pressing plate (4), plunger (5), middle web (6), top wing plate
(7) it is formed with spring (8), still, stabilizer shell (1), middle web (6) and top wing plate (7) need to be suitably modified；Firstly,
Stabilizer shell (1) threaded upper ends are converted into connect top drilling tool thread, stabilizer shell (1) mesoporous suitably simplifies, nothing
Upper seal support (3) and bottom sealing socket (9) need to be installed, secondly, top wing plate (7) screw die is modified to arc surface, inlay hard conjunction
Gold bullion, finally, adjustment middle web (6) and top wing plate (7) thickness, it is ensured that it is best that top wing plate (7), which stretches out maximum gauge,
Stabilizer diameter.
5. a kind of hydraulic variable diameter stabilizer according to claim 1, it is characterised in that：Hydraulic variable diameter stabilizer is commonly installed
To helicoid hydraulic motor and non-magnetic drilling tool (built-in MWD/LWD instrument) top；
When compound drilling, upper seal section is managed in control and control manages lower seal section and respectively enters upper seal support (3) and bottom sealing socket
(9), drilling fluid is directly entered lower drilling tool through control pipe (2) mesoporous, and plunger (5), middle web (6) and top wing plate (7) are not
It stretches out, hydraulic variable diameter stabilizer is equivalent to drilling string stabilizer；When slipping drilling, upper seal section is managed in control and lower seal section is managed in control
Respectively away from upper seal support (3) and bottom sealing socket (9), drilling liquid pressure is through ring between control pipe (2) and stabilizer shell (1) mesoporous
Sky passes to plunger (5), pushes plunger (5), middle web (6) and top wing plate (7) to stretch out, top wing plate screw die imbeds well
Wall prevents helicoid hydraulic motor reaction torque from being communicated up, and eliminates helicoid hydraulic motor untwisting angle, thoroughly solves helicoid hydraulic motor slipping drilling orientation
It is difficult.
6. a kind of hydraulic variable diameter stabilizer according to claim 1, it is characterised in that：Hydraulic variable diameter stabilizer can be simplified to
Hydraulic variable diameter drilling string stabilizer is mainly used in high-inclination directional well, super extended reach directional well and horizontal well bottom drilling assembly
In；
In drilling process, drilling fluid pressure difference pushes plunger (5), middle web (6) and top wing plate (7) to stretch out, hydraulic variable diameter
Drilling string stabilizer is equivalent to common drilling string stabilizer, moreover, the top wing plate (7) for calculating and adjusting through drilling engineer stretches out directly
Diameter is best stabilized device diameter, reduces drilling tool mill resistance, reduces drilling tool backing pressure；After hydraulic variable diameter drilling string stabilizer plays ground,
According to top wing plate (7) degree of wear, by adjusting middle web (6) or replacement top wing plate (7), hydraulic variable diameter drill stem stabilization
Device can be used back into well, reduce drilling string stabilizer maintenance or acquisition cost.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810838363.0A CN108915613A (en) | 2018-07-19 | 2018-07-19 | A kind of hydraulic variable diameter stabilizer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810838363.0A CN108915613A (en) | 2018-07-19 | 2018-07-19 | A kind of hydraulic variable diameter stabilizer |
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ID=64417292
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111380711A (en) * | 2020-04-05 | 2020-07-07 | 新疆正通石油天然气股份有限公司 | Buckling tubular column drilling evaluation method in reducing borehole |
| CN113775300A (en) * | 2021-11-15 | 2021-12-10 | 奥瑞拓能源科技股份有限公司 | Reducing stabilizer and drilling tool |
| CN115506727A (en) * | 2022-11-08 | 2022-12-23 | 大庆市璞庆钻采设备制造有限公司 | Diameter-variable drilling tool stabilizer |
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| CN2864067Y (en) * | 2005-11-18 | 2007-01-31 | 新疆石油管理局钻井工艺研究院 | Electrically controlled diameter changeable type stabilizer |
| CN205918361U (en) * | 2016-08-10 | 2017-02-01 | 裴绪建 | Perpendicular drilling tool of machinery |
| CN206246059U (en) * | 2016-10-18 | 2017-06-13 | 裴绪建 | A kind of mechanical guide drilling tool |
| CN108179980A (en) * | 2018-01-05 | 2018-06-19 | 江小三 | A kind of machinery tapered stabilizer |
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| CN2851520Y (en) * | 2005-11-18 | 2006-12-27 | 新疆石油管理局钻井工艺研究院 | Hydraulic diameter-changeable type stabilizer |
| CN2864067Y (en) * | 2005-11-18 | 2007-01-31 | 新疆石油管理局钻井工艺研究院 | Electrically controlled diameter changeable type stabilizer |
| CN205918361U (en) * | 2016-08-10 | 2017-02-01 | 裴绪建 | Perpendicular drilling tool of machinery |
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| CN111380711A (en) * | 2020-04-05 | 2020-07-07 | 新疆正通石油天然气股份有限公司 | Buckling tubular column drilling evaluation method in reducing borehole |
| CN113775300A (en) * | 2021-11-15 | 2021-12-10 | 奥瑞拓能源科技股份有限公司 | Reducing stabilizer and drilling tool |
| CN115506727A (en) * | 2022-11-08 | 2022-12-23 | 大庆市璞庆钻采设备制造有限公司 | Diameter-variable drilling tool stabilizer |
| CN115506727B (en) * | 2022-11-08 | 2023-04-07 | 大庆市璞庆钻采设备制造有限公司 | Diameter-variable drilling tool stabilizer |
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Application publication date: 20181130 |