CN106285514A - A kind of drill string rotating pressurizing tool - Google Patents
A kind of drill string rotating pressurizing tool Download PDFInfo
- Publication number
- CN106285514A CN106285514A CN201610910417.0A CN201610910417A CN106285514A CN 106285514 A CN106285514 A CN 106285514A CN 201610910417 A CN201610910417 A CN 201610910417A CN 106285514 A CN106285514 A CN 106285514A
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- middle cylinder
- urceolus
- drill string
- inner core
- string rotating
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- 238000005553 drilling Methods 0.000 claims abstract description 121
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 50
- 239000010959 steel Substances 0.000 claims abstract description 50
- 238000000034 method Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 9
- 238000013461 design Methods 0.000 claims description 8
- 239000003208 petroleum Substances 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 238000011109 contamination Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000005461 lubrication Methods 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 abstract description 16
- 238000005086 pumping Methods 0.000 abstract description 5
- 239000002002 slurry Substances 0.000 description 8
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000012545 processing Methods 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000012938 design process Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 230000037237 body shape Effects 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides a kind of drill string rotating pressurizing tool, be mainly made up of top connection, upper thrust bearing, lower thrust bearing, middle cylinder, urceolus, position-limiting drum, inner core, steel ball, spring and lower contact.During slipping drilling, urceolus internal spline and middle cylinder external splines are kept completely separate, turn on pump, are about to urceolus and the locking of middle cylinder under inner core, it is achieved its top drilling tool rotates and lower drilling tool not rotary work state.During compound drilling, urceolus internal spline and middle cylinder external splines are at a fully engaged, turn on pump, are about to urceolus and the locking of middle cylinder under inner core, it is achieved its upper and lower part drilling tool rotary work state simultaneously.After termination of pumping, inner core utilizes spring to reset, it is achieved two kinds of duties are exchanged.Therefore, drill string rotating pressurizing tool has rotary presser function when slipping drilling, can efficient solution determine the backing pressure problem of slipping drilling in directional well, horizontal well.
Description
Technical field
Patent of the present invention belongs to oil drilling machine field, is specifically related to a kind of drill string rotating pressurizing tool, is used for solving
Slipping drilling backing pressure problem during directional well, horizontal well drilling, improves drilling well timeliness, reduces drilling cost.
Background technology
Drilling well is the inevitable approach of underground oil and gas resource exploitation to ground.According to design well trajectory shape, oil well
Straight well, directional well and horizontal well can be divided into.
During directional well, horizontal well drilling, well track is according to its spatial parameter (including well depth, hole deviation and orientation)
Change generally can be divided into angle buildup interval (include increasing hole angle section, drop angle section or turn round orientation section) and steady lower curved section and (includes straight well section, surely
Tiltedly section or horizontal segment).At angle buildup interval, when using helicoid hydraulic motor increasing hole angle, drop angle or turn round orientation operation, helicoid hydraulic motor drives and bores
Broken rock creeps into, and down-hole equipment does not rotates, but overcomes borehole wall mill resistance to push drill bit under the pressure of the drill effect of ground and slide forward, because of
This, use helicoid hydraulic motor increasing hole angle, drop angle or torsion orientation to creep into also referred to as slipping drilling.At steady lower curved section, down-hole equipment and spiral shell
Bar drill tool common driving drill bit breaks rock and creeps into, and therefore, uses helicoid hydraulic motor angle holding drilling to be also referred to as compound drilling.
When slipping drilling, drilling tool slides forward because self gravitation againsts borehole bottom, there is mill between drilling tool and the borehole wall
Resistance, therefore, on drill bit, actual the pressure of the drill deducts the difference of drilling tool mill resistance equal to ground the pressure of the drill, and in other words, actual the pressure of the drill is less than ground
The pressure of the drill, bit speed substantially slows down, and we call backing pressure this phenomenon.In High angle section, horizontal segment, bore during slipping drilling
Tool mill resistance along with hole deviation increase present the order of magnitude be incremented by, when drilling tool mill resistance more than ground the pressure of the drill time, drilling well without drilling depth, or
Saying, no matter ground applies much the pressure of the drill, and the pressure of the drill all cannot be effectively passed on drill bit, and even drilling tool bending deformation, drilling tool is all
Borehole bottom cannot be transported to.But, at identical well section, compound drilling rate of penetration slipping drilling to be far longer than power auger
Speed, in other words, backing pressure phenomenon slipping drilling to be significantly better than during compound drilling.In view of this, during compound drilling, drilling tool rotates energy
Enough drilling tool mills that reduces to a great extent hinder, thus reach to slow down or solve the purpose of backing pressure.
It addition, when slipping drilling, drilling tool slides forward because self gravitation againsts borehole bottom, and bore hole annulus is top
Greatly, the little crescent shape in bottom, annular space mud speed rate is uneven, and bottom its annular space, mud speed rate is minimum does not even flow, mud
The solid phase particles such as middle landwaste easily precipitate formation cutting bed, increase drilling tool mill resistance further, and backing pressure increases the most therewith.On the contrary, exist
During compound drilling, drilling tool rotate to a certain extent change bore hole annulus mud fluidised form, slow down or avoid the formation of cutting bed, also between
Connecing reduction drilling tool mill resistance, backing pressure is alleviated the most therewith.
Since down-hole equipment rotates can effectively solve backing pressure problem, then, it is therefore necessary to design a kind of drill string rotating and add
Pressure instrument, and this instrument is arranged on drilling tool flexing well depth anterior locations.When directional well, horizontal well slipping drilling, drill bit with
Between drill string rotating pressurizing tool, drilling tool does not rotates, still slipping drilling, and between drill string rotating pressurizing tool and rotating disk, drilling tool exists
Rotating disk (or top drive) drives lower rotation, in this manner it is possible to solve backing pressure problem, has good economic benefit and social benefit.
Patent of invention content
The purpose of patent of the present invention is to provide a kind of drill string rotating pressurizing tool, is used for solving directional well, horizontal well drilling
During slipping drilling backing pressure problem, improve drilling well timeliness, reduce drilling cost.
Patent of the present invention uses following concrete technical scheme to realize:
Drill string rotating pressurizing tool mainly by top connection, upper thrust bearing, lower thrust bearing, middle cylinder, urceolus, position-limiting drum,
Inner core, steel ball, spring and lower contact composition.
Urceolus upper end is special thread box and links together with top connection.Top connection is oil drilling tools adapter,
Its upper end is screw threads of petroleum drilling tools box, is used for connecting top drilling tool, and fixing upper thrust bearing is installed by screw in its lower surface.
Therefore, top connection, upper thrust bearing and urceolus collectively constitute the layer structure of drill string rotating pressurizing tool.
Fixing lower thrust bearing is installed by screw in middle cylinder upper surface；Its body six locking holes of processing are placed with steel ball,
Cylinder and urceolus relative movement in limiting；Its lower end is special thread pin thread, is used for connecting lower contact.Lower contact is petroleum drilling
Tool adapter, its lower end is screw threads of petroleum drilling tools pin thread, is used for connecting lower drilling tool.Therefore, lower thrust bearing, middle cylinder, steel
Pearl and lower contact collectively constitute the media layer damage of drill string rotating pressurizing tool.
Spring, inner core and position-limiting drum are arranged in middle cylinder endoporus, and can regulate inner core position by position-limiting drum threaded upper ends
Put and make cylinder locking hole in its stopper slot alignment, then, steel ball is placed in middle cylinder locking hole and maintains an equal level with middle drum outer wall, it is ensured that
Middle cylinder is arranged in urceolus endoporus smoothly.Therefore, spring, inner core and position-limiting drum collectively constitute the internal layer of drill string rotating pressurizing tool
Structure.
Outer tube inner wall lower end, middle drum outer wall upper end and the upper and lower outer wall of inner core stopper slot all process multiple-sealed groove, install phase
Answering specifications and models sealing ring, make to realize surging between middle cylinder and urceolus, between middle cylinder and inner core sealing, it is ensured that steel ball working environment
Not by mud contamination, drill string rotating pressurizing tool underground work is safe and reliable.Therefore, the multiple tracks on inner core, middle cylinder and urceolus is close
Seal together constitutes the sealing system of drill string rotating pressurizing tool.
Outer tube inner wall is provided with internal spline.The parameters such as the number of teeth of internal spline, tooth root dia, tooth top footpath, the facewidth and tooth length with in
Cylinder external splines matches, and spline tooth upper end is designed to fillet pyramidal structure, it is simple to urceolus internal spline engages with middle cylinder external splines.
Middle drum outer wall is provided with external splines.The parameters such as the number of teeth of external splines, tooth root dia, tooth top footpath, the facewidth and tooth length are with outer
Cylinder internal spline matches, and spline tooth lower end is designed to fillet pyramidal structure, it is simple to middle cylinder external splines engages with urceolus internal spline.
Urceolus internal spline and middle cylinder external splines collectively constitute the clutch of drill string rotating pressurizing tool.During slipping drilling,
Urceolus internal spline separates with middle cylinder external splines, and upper and lower part drilling tool separately, drill bit adds drill string rotating pressurizing tool with drill string rotating
Drilling tool slipping drilling between pressure instrument, between drill string rotating pressurizing tool and rotating disk, drilling tool is rotatable；During compound drilling, in urceolus
Spline and the engagement of middle cylinder external splines, whole drilling tool remains an entirety and jointly rotates under rotating disk drives.
Outer tube inner wall arranges two groups of stopper slots, i.e. upper group stopper slot and lower group of stopper slot below internal spline, often organizes spacing
Groove all designs two stopper slots.Its groove width is slightly larger than diameter of the steel ball, and groove depth is slightly larger than steel ball radius.
Middle bobbin body arranges two row's locking holes, two stopper slots in corresponding often group stopper slot below external splines.Often arrange
Three locking holes be 120 ° uniform, upper and lower two row's locking hole circumferences stagger 60 °, and its aperture is slightly larger than diameter of the steel ball.
Inner tank theca arranges one group of stopper slot, i.e. two stopper slots, two row's locking holes on corresponding middle bobbin body.Its groove width
Slightly larger than diameter of the steel ball, groove depth is slightly larger than steel ball radius.
Urceolus stopper slot, middle cylinder locking hole and inner core stopper slot collectively constitute the retaining mechanism of drill string rotating pressurizing tool.
When organizing stopper slot on urceolus and aliging with middle cylinder locking hole, turn on pump, high-pressure slurry promotes inner core descending, and compression spring, by steel ball
Locking in being extruded into urceolus stopper slot and middle cylinder locking hole formation space and by urceolus and middle cylinder, drill string rotating pressurizing tool belongs to slip
Creep into duty；When organizing stopper slot under urceolus and aliging with middle cylinder locking hole, turn on pump, high-pressure slurry promotes inner core descending, pressure
Contracting spring, locks in steel ball is extruded into urceolus stopper slot and middle cylinder locking hole formation space and by urceolus and middle cylinder, drill string rotating
Pressurizing tool belongs to compound drilling duty；Termination of pumping, inner core utilizes spring to automatically reset, and inner core stopper slot is locked with middle cylinder
Aliging in hole, steel ball can be pressed against middle cylinder locking hole and inner core stopper slot is formed in space, it is achieved urceolus and two kinds of middle cylinder work shape
State is exchanged.
In addition to often organizing stopper slot and arranging two stopper slots, often group stopper slot should design how many stopper slots？Depend primarily on
Cylinder and the steel strength of urceolus, mechanical processing technique level and drill string rotating pressurizing tool working environment in manufacture, accordingly, it would be desirable to
Design and manufacturing process considers and determines.
In addition to circular arc, stopper slot geometry is designed to square or other shapes？In depending on manufacturing, cylinder is with outer
Steel strength, locking body shape (such as steel ball) and the mechanical processing technique level of cylinder, accordingly, it would be desirable in Design and manufacturing process
Consider and determine.
Upper thrust bearing, lower thrust bearing use the time to be to determine one of drill string rotating pressurizing tool working life factor,
Therefore, upper thrust bearing, the contact surface uniform tungsten carbide button block of lower thrust bearing and grinding flat smooth, meanwhile, contact
Face is designed with mud runner, is used for cooling down, lubricating bearing, prevents hard alloy blocks from sintering.
Patent of the present invention provides the benefit that: when slipping drilling, no matter which kind of operating mode, will first transfer drilling tool before turn on pump
Certain altitude must first have one to transfer drilling tool process, urceolus internal spline and middle cylinder external splines to be kept completely separate in other words, with this with
Time, urceolus to be organized stopper slot and aligns with middle cylinder locking hole, turn on pump, high-pressure slurry promotes inner core descending, and steel ball is squeezed by compression spring
Locking in forming space to urceolus stopper slot and middle cylinder locking hole and by urceolus and middle cylinder, drill string rotating pressurizing tool belongs to the brill that slides
Enter duty, thus realize drilling tool slipping drilling between drill bit and drill string rotating pressurizing tool, drill string rotating pressurizing tool with
Between rotating disk, drilling tool is rotatable, period, top drilling tool the pressure of the drill by top connection, upper thrust bearing, lower thrust bearing, middle cylinder and under
Joint passes to lower drilling tool.When compound drilling, no matter which kind of operating mode, before turn on pump will first on carry drilling tool certain altitude or
Say and must first have on one the drilling tool process that carries, urceolus internal spline and middle cylinder external splines at a fully engaged, meanwhile, group limit under urceolus
Position groove aligns with middle cylinder locking hole, turn on pump, and high-pressure slurry promotes inner core descending, and steel ball is extruded into urceolus stopper slot by compression spring
Locking in forming space with middle cylinder locking hole and by urceolus and middle cylinder, drill string rotating pressurizing tool belongs to compound drilling duty,
Whole drilling tool remain an entirety rotating disk drive under jointly rotate, period, top drilling tool the pressure of the drill by top connection, urceolus,
Steel ball, middle cylinder and lower contact pass to lower drilling tool, moment of torsion by top connection, urceolus (internal spline), middle cylinder (external splines) and under
Joint passes to lower drilling tool.If drill string rotating pressurizing tool duty to be exchanged, termination of pumping, inner core utilizes spring certainly
Dynamic reset, inner core stopper slot aligns with middle cylinder locking hole, and steel ball can be pressed against middle cylinder locking hole and inner core stopper slot forms space
In, it is achieved the exchange between two kinds of duties.Therefore, under not affecting normal compound drilling premise, by terrestrial operation, bore
Post rotary presser instrument clutch and retaining mechanism cooperation, realize rotary presser function during slipping drilling jointly, solves
Backing pressure problem during directional well, horizontal well drilling.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of patent drill string rotating pressurizing tool of the present invention.
Description of reference numerals: cylinder in thrust bearing, 4-under 1-top connection, the upper thrust bearing of 2-, 3-, 5-urceolus, 6-are spacing
Cylinder, 7-inner core, 8-steel ball, 9-spring, 10-lower contact.
Detailed description of the invention
Drill string rotating pressurizing tool mainly by top connection (1), upper thrust bearing (2), lower thrust bearing (3), middle cylinder (4),
Urceolus (5), position-limiting drum (6), inner core (7), steel ball (8), spring (9) and lower contact (10) composition.
With embodiment, patent of the present invention is described further below in conjunction with the accompanying drawings.
Urceolus (5) upper end is special thread box and links together with top connection (1).Top connection (1) is oil drilling tools
Adapter, its upper end is screw threads of petroleum drilling tools box, is used for connecting top drilling tool, and its lower surface is installed on fixing by screw
Thrust bearing (2).Therefore, top connection (1), upper thrust bearing (2) and urceolus (5) collectively constitute outside drill string rotating pressurizing tool
Rotating fields.
Fixing lower thrust bearing (3) is installed by screw in middle cylinder (4) upper surface；Its body six locking holes of processing are placed with
Steel ball (8), cylinder (4) and urceolus (5) relative movement in limiting；Its lower end is special thread pin thread, is used for connecting lower contact.
Lower contact (10) is oil drilling tools adapter, and its lower end is screw threads of petroleum drilling tools pin thread, is used for connecting lower drilling tool.Therefore,
Lower thrust bearing (3), middle cylinder (4), steel ball (8) and lower contact (10) collectively constitute the media layer damage of drill string rotating pressurizing tool.
Spring (9), inner core (7) and position-limiting drum (6) are arranged in middle cylinder (4) endoporus, and by position-limiting drum (6) threaded upper ends
Inner core (7) position can be regulated and make cylinder (4) locking hole in its stopper slot alignment, then, steel ball (8) is placed on middle cylinder (4) lock
Maintain an equal level in tieholen and with middle cylinder (4) outer wall, it is ensured that middle cylinder (4) is arranged in urceolus (5) endoporus smoothly.Therefore, spring (9), interior
Cylinder (7) and position-limiting drum (6) collectively constitute the endothecium structure of drill string rotating pressurizing tool.
Urceolus (5) inwall lower end, middle cylinder (4) outer wall upper end and the upper and lower outer wall of inner core (7) stopper slot are all processed multiple-sealed
Groove, installs dimension model sealing ring, makes between middle cylinder (4) and urceolus (5), realizes surging between middle cylinder (4) and inner core (7)
Seal, it is ensured that steel ball (8) working environment is not by mud contamination, and drill string rotating pressurizing tool underground work is safe and reliable.Therefore, interior
Multiple-sealed circle on cylinder (7), middle cylinder (4) and urceolus (5) together constitutes the sealing system of drill string rotating pressurizing tool.
Urceolus (5) inwall is provided with internal spline.The parameters such as the number of teeth of internal spline, tooth root dia, tooth top footpath, the facewidth and tooth length with
Middle cylinder (4) external splines matches, and spline tooth upper end is designed to fillet pyramidal structure, it is simple to urceolus (5) internal spline and middle cylinder (4)
External splines engages.
Middle cylinder (4) outer wall is provided with external splines.The parameters such as the number of teeth of external splines, tooth root dia, tooth top footpath, the facewidth and tooth length with
Urceolus (5) internal spline matches, and spline tooth lower end is designed to fillet pyramidal structure, it is simple to middle cylinder (4) external splines and urceolus (5)
Internal spline engages.
Urceolus (5) internal spline and middle cylinder (4) external splines collectively constitute the clutch of drill string rotating pressurizing tool.Slide and bore
When entering, urceolus (5) internal spline separates with middle cylinder (4) external splines, and drill string rotating pressurizing tool separates upper and lower part drilling tool, drill bit
And drilling tool slipping drilling between drill string rotating pressurizing tool, between drill string rotating pressurizing tool and rotating disk, drilling tool is rotatable；Compound
When creeping into, urceolus (5) internal spline and the engagement of middle cylinder (4) external splines, whole drilling tool remains an entirety and is total under rotating disk drives
With rotating.
Urceolus (5) inwall arranges two groups of stopper slots, i.e. upper group stopper slot and lower group of stopper slot below internal spline, often organizes limit
Position groove all designs two stopper slots.Its groove width is slightly larger than steel ball (8) diameter, and groove depth is slightly larger than steel ball (8) radius.
Middle cylinder (4) body arranges two row's locking holes, two stopper slots in corresponding often group stopper slot below external splines.Often
Arrange three locking holes be 120 ° uniform, upper and lower two row's locking hole circumferences stagger 60 °, and its aperture is slightly larger than steel ball (8) diameter.
Inner core (7) outer wall arranges one group of stopper slot, i.e. two stopper slots, two row's locking holes on corresponding middle bobbin body.Its
Groove width is slightly larger than steel ball (8) diameter, and groove depth is slightly larger than steel ball (8) radius.
Urceolus (5) stopper slot, middle cylinder (4) locking hole and inner core (7) stopper slot collectively constitute drill string rotating pressurizing tool
Retaining mechanism.When urceolus (5) upper group stopper slot aligns with middle cylinder (4) locking hole, turn on pump, high-pressure slurry promotes under inner core (7)
OK, compression spring (9), in being extruded into urceolus (5) stopper slot and middle cylinder (4) locking hole formation space and by urceolus (5) by steel ball (8)
Locking with middle cylinder (4), drill string rotating pressurizing tool belongs to slipping drilling duty；When organizing stopper slot and middle cylinder (4) under urceolus (5)
During locking hole alignment, turn on pump, high-pressure slurry promotes inner core (7) descending, and steel ball (8) is extruded into urceolus (5) limit by compression spring (9)
Locking in position groove and middle cylinder (4) locking hole form space and by urceolus (5) and middle cylinder (4), drill string rotating pressurizing tool belongs to compound
Creep into duty；Termination of pumping, inner core (7) utilizes spring (9) elasticity to automatically reset, inner core (7) stopper slot and middle cylinder (4) locking hole
Alignment, steel ball (8) can be pressed against middle cylinder (4) locking hole and inner core (7) stopper slot is formed in space, it is achieved urceolus (5) and middle cylinder
(4) two kinds of duties are exchanged.
In addition to often organizing stopper slot and arranging two stopper slots, often group stopper slot should design how many stopper slots？Depend primarily on
Cylinder (4) and the steel strength of urceolus (5), mechanical processing technique level and drill string rotating pressurizing tool working environment in manufacture, because of
This, need to consider in Design and manufacturing process to determine.
In addition to circular arc, stopper slot geometry is designed to square or other shapes？Depend on manufacture in cylinder (4) and
The steel strength of urceolus (5), locking body shape (such as steel ball (8)) and mechanical processing technique level, accordingly, it would be desirable in design system
Consider during making and determine.
Upper thrust bearing (2), lower thrust bearing (3) use time are to determine drill string rotating pressurizing tool working life factor
One of, therefore, upper thrust bearing (2), the contact surface uniform tungsten carbide button block of lower thrust bearing (3) and grind smooth light
Sliding, meanwhile, contact surface is designed with mud runner, is used for cooling down, lubricating bearing, prevents hard alloy blocks from sintering.
Embodiment 1
In field operation, drill string rotating pressurizing tool is arranged on position between non magnetic drill collar and drilling tool flexing well depth, so
After, bore under way-type drilling unit.
When slipping drilling, no matter which kind of operating mode, will first transfer drilling tool certain altitude before turn on pump must first have in other words
Transferring drilling tool process, urceolus (5) internal spline and middle cylinder (4) external splines for one to be kept completely separate, meanwhile, urceolus organizes limit on (5)
Position groove aligns with middle cylinder (4) locking hole, turn on pump, and high-pressure slurry promotes inner core (7) descending, and steel ball (8) is squeezed by compression spring (9)
Locking in forming space to urceolus (5) stopper slot and middle cylinder (4) locking hole and by urceolus (5) and middle cylinder (4), drill string rotating is pressurizeed
Instrument belongs to slipping drilling duty, thus realizes drilling tool slipping drilling between drill bit and drill string rotating pressurizing tool, and drill string revolves
Turn drilling tool between pressurizing tool and rotating disk rotatable.Period, top drilling tool the pressure of the drill by top connection (1), upper thrust bearing (2),
Lower thrust bearing (3), middle cylinder (4) and lower contact (10) pass to lower drilling tool.
When compound drilling, no matter which kind of operating mode, before turn on pump will first on carry drilling tool certain altitude and must first have in other words
Drilling tool process, urceolus (5) internal spline and middle cylinder (4) external splines is carried at a fully engaged on one, meanwhile, group limit under urceolus (5)
Position groove aligns with middle cylinder (4) locking hole, turn on pump, and high-pressure slurry promotes inner core (7) descending, and steel ball (8) is squeezed by compression spring (9)
Locking in forming space to urceolus (5) stopper slot and middle cylinder (4) locking hole and by urceolus (5) and middle cylinder (4), drill string rotating is pressurizeed
Instrument belongs to compound drilling duty, and whole drilling tool remains an entirety and jointly rotates under rotating disk drives.Period, top is bored
Tool the pressure of the drill passes to lower drilling tool by top connection (1), urceolus (5), steel ball (8), middle cylinder (4) and lower contact (10), and moment of torsion leads to
Cross top connection (1), urceolus (5), middle cylinder (4) and lower contact (10) and pass to lower drilling tool.
If drill string rotating pressurizing tool duty to be exchanged, termination of pumping, inner core (7) utilizes spring (9) elastic the most multiple
Position, inner core (7) stopper slot aligns with middle cylinder (4) locking hole, and steel ball (8) can be pressed against middle cylinder (4) locking hole and inner core (7) is spacing
Groove is formed in space, it is achieved the exchange between two kinds of duties.
Therefore, under not affecting normal compound drilling premise, by terrestrial operation, drill string rotating pressurizing tool clutch
The rotary presser function with retaining mechanism cooperation, when jointly realizing slipping drilling, during solving directional well, horizontal well drilling
Backing pressure problem.
Explanation to patent of the present invention is only preferred examples above, can not be understood to art solutions of the present invention
The restriction of content.In a particular application, technical staff is likely to require and adjusts the most individually and change above content
Becoming, described adjustment and change all should fall among the protection domain of patent claims of the present invention.
Claims (8)
1. a drill string rotating pressurizing tool, it is characterised in that: drill string rotating pressurizing tool is mainly by top connection (1), upper thrust
Bearing (2), lower thrust bearing (3), middle cylinder (4), urceolus (5), position-limiting drum (6), inner core (7), steel ball (8), spring (9) and under connect
Head (10) composition.
A kind of drill string rotating pressurizing tool the most according to claim 1, it is characterised in that:
Urceolus (5) upper end is special thread box and links together with top connection (1)；
Top connection (1) is oil drilling tools adapter, and its upper end is screw threads of petroleum drilling tools box, is used for connecting top drilling tool, its
Fixing upper thrust bearing (2) is installed by screw in lower surface；
Top connection (1), upper thrust bearing (2) and urceolus (5) collectively constitute the layer structure of drill string rotating pressurizing tool.
A kind of drill string rotating pressurizing tool the most according to claim 1, it is characterised in that:
Fixing lower thrust bearing (3) is installed by screw in middle cylinder (4) upper surface；
Middle cylinder (4) body is processed six locking holes and is all placed with steel ball (8) cylinder (4) and urceolus (5) relative movement in limiting；
Middle cylinder (4) lower end is special thread pin thread, is used for connecting lower contact；
Lower contact (10) is oil drilling tools adapter, and its lower end is screw threads of petroleum drilling tools pin thread, is used for connecting lower drilling tool；
Lower thrust bearing (3), middle cylinder (4), steel ball (8) and lower contact (10) collectively constitute the middle level knot of drill string rotating pressurizing tool
Structure.
A kind of drill string rotating pressurizing tool the most according to claim 1, it is characterised in that: spring (9), inner core (7) and limit
Position cylinder (6) is arranged in middle cylinder (4) endoporus, and can be regulated inner core (7) position made it spacing by position-limiting drum (6) threaded upper ends
Cylinder (4) locking hole in groove alignment, then, is placed on steel ball (8) in middle cylinder (4) locking hole and maintains an equal level with middle cylinder (4) outer wall, really
During in guarantor, cylinder (4) is arranged on urceolus (5) endoporus smoothly, therefore, spring (9), inner core (7) and position-limiting drum (6) collectively constitute drill string
The endothecium structure of rotary presser instrument.
A kind of drill string rotating pressurizing tool the most according to claim 1, it is characterised in that: urceolus (5) inwall lower end, middle cylinder
(4) outer wall upper end and the upper and lower outer wall of inner core (7) stopper slot all process multiple-sealed groove, install dimension model sealing ring, make
Realize surging between middle cylinder (4) and urceolus (5), between middle cylinder (4) and inner core (7) sealing, it is ensured that steel ball (8) working environment is not subject to
Mud contamination, drill string rotating pressurizing tool underground work is safe and reliable, therefore, many on inner core (7), middle cylinder (4) and urceolus (5)
Road sealing ring together constitutes the sealing system of drill string rotating pressurizing tool.
A kind of drill string rotating pressurizing tool the most according to claim 1, it is characterised in that:
Urceolus (5) inwall is provided with internal spline, the parameter such as the number of teeth of internal spline, tooth root dia, tooth top footpath, the facewidth and tooth length and middle cylinder
(4) external splines matches, and spline tooth upper end is designed to fillet pyramidal structure, it is simple to urceolus (5) internal spline is spent outward with middle cylinder (4)
Key engages；
Middle cylinder (4) outer wall is provided with external splines, parameter and the urceolus such as the number of teeth of external splines, tooth root dia, tooth top footpath, the facewidth and tooth length
(5) internal spline matches, and spline tooth lower end is designed to fillet pyramidal structure, it is simple to middle cylinder (4) external splines and flower in urceolus (5)
Key engages；
Urceolus (5) internal spline and middle cylinder (4) external splines collectively constitute the clutch of drill string rotating pressurizing tool.
A kind of drill string rotating pressurizing tool the most according to claim 1, it is characterised in that:
Urceolus (5) inwall arranges two groups of stopper slots, i.e. upper group stopper slot and lower group of stopper slot below internal spline, often organizes stopper slot
All two stopper slots of design；
Middle cylinder (4) body arranges two row's locking holes, two stopper slots in corresponding often group stopper slot below external splines, often arranges three
Individual locking hole be 120 ° uniform, upper and lower two row's locking hole circumferences stagger 60 °；
Inner core (7) outer wall arranges one group of stopper slot, i.e. two stopper slots, two row's locking holes on corresponding middle bobbin body；
Stopper slot groove width is slightly larger than steel ball (8) diameter, and groove depth is slightly larger than steel ball (8) radius, and locking hole aperture is slightly larger than steel ball (8)
Diameter；
Urceolus (5) stopper slot, middle cylinder (4) locking hole and inner core (7) stopper slot collectively constitute the locking of drill string rotating pressurizing tool
Mechanism.
A kind of drill string rotating pressurizing tool the most according to claim 1, it is characterised in that: upper thrust bearing (2), lower thrust
Bearing (3) contact surface uniform tungsten carbide button block and grind flat smooth, meanwhile, contact surface has mud runner, be used for cooling down,
Lubrication bearing, prevents hard alloy blocks from sintering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610910417.0A CN106285514A (en) | 2016-10-18 | 2016-10-18 | A kind of drill string rotating pressurizing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610910417.0A CN106285514A (en) | 2016-10-18 | 2016-10-18 | A kind of drill string rotating pressurizing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106285514A true CN106285514A (en) | 2017-01-04 |
Family
ID=57719692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610910417.0A Pending CN106285514A (en) | 2016-10-18 | 2016-10-18 | A kind of drill string rotating pressurizing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106285514A (en) |
Cited By (8)
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|---|---|---|---|---|
| CN108179981A (en) * | 2018-01-05 | 2018-06-19 | 江小三 | A kind of rotational slide boring means |
| CN108612479A (en) * | 2018-04-23 | 2018-10-02 | 裴绪建 | A kind of mechanical guide control device |
| CN108825124A (en) * | 2018-05-22 | 2018-11-16 | 江小三 | A kind of locking device for also serving as rolling bearing and using |
| CN111734363A (en) * | 2020-07-02 | 2020-10-02 | 合力（天津）能源科技股份有限公司 | Underground clutch |
| CN111764841A (en) * | 2019-04-02 | 2020-10-13 | 陈晓新 | Novel horizontal torsional elastic force buffering cutting rock breaking drilling tool |
| CN111894496A (en) * | 2020-03-16 | 2020-11-06 | 重庆科技学院 | Drilling pressure control type underground circulation short circuit and coiled tubing drill plug dynamic flushing process |
| CN114109251A (en) * | 2021-11-18 | 2022-03-01 | 西南石油大学 | Control device and use method of composite directional drilling |
| CN114109250A (en) * | 2021-11-18 | 2022-03-01 | 西南石油大学 | Controller for realizing drill column full-rotation composite orientation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108179981A (en) * | 2018-01-05 | 2018-06-19 | 江小三 | A kind of rotational slide boring means |
| CN108612479A (en) * | 2018-04-23 | 2018-10-02 | 裴绪建 | A kind of mechanical guide control device |
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| CN111764841A (en) * | 2019-04-02 | 2020-10-13 | 陈晓新 | Novel horizontal torsional elastic force buffering cutting rock breaking drilling tool |
| CN111894496A (en) * | 2020-03-16 | 2020-11-06 | 重庆科技学院 | Drilling pressure control type underground circulation short circuit and coiled tubing drill plug dynamic flushing process |
| CN111734363A (en) * | 2020-07-02 | 2020-10-02 | 合力（天津）能源科技股份有限公司 | Underground clutch |
| CN114109251A (en) * | 2021-11-18 | 2022-03-01 | 西南石油大学 | Control device and use method of composite directional drilling |
| CN114109250A (en) * | 2021-11-18 | 2022-03-01 | 西南石油大学 | Controller for realizing drill column full-rotation composite orientation |
| CN114109251B (en) * | 2021-11-18 | 2023-08-22 | 西南石油大学 | Control device for composite directional drilling and use method |
| CN114109250B (en) * | 2021-11-18 | 2023-10-27 | 西南石油大学 | Controller for realizing full-rotation composite orientation of drill string |
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Application publication date: 20170104 |