CN107227942A - Plugging while drilling short-circuit device - Google Patents
Plugging while drilling short-circuit device Download PDFInfo
- Publication number
- CN107227942A CN107227942A CN201710567680.9A CN201710567680A CN107227942A CN 107227942 A CN107227942 A CN 107227942A CN 201710567680 A CN201710567680 A CN 201710567680A CN 107227942 A CN107227942 A CN 107227942A
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- China
- Prior art keywords
- outer barrel
- ring
- mandrel
- sleeve
- ring gear
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Classifications
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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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/01—Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
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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)
- Drilling And Boring (AREA)
Abstract
The present invention relates to oil/gas drilling engineering plugging and cleaning well construction tool technical field, it is a kind of plugging while drilling short-circuit device, including outer barrel, lower contact, mandrel, sliding sleeve, upper helical teeth ring, upper spring, oblique ring gear and lower spring, the lower inside of outer barrel and the upper outside of lower contact are fixedly installed togather, mandrel is set with outer barrel, the lower outside of mandrel and the upper inner of lower contact are fixedly installed togather, and the upper outside of mandrel is set with the sliding sleeve that can be slid in outer barrel and along mandrel；Sliding sleeve includes upper joint sleeve, middle adapter sleeve and the lower joint sleeve being from top to bottom connected in turn.The present invention can enable the invention to be connected to the optional position of drilling tool in well by the setting of upper helical teeth ring and oblique ring gear, the operation of multiple different demands can be carried out by a pitching, it cannot be only used for carrying out plugging operations, it can be additionally used in the cleaning of the borehole wall, the effect that drilling fluid takes sand can be improved in heavy duty service.
Description
Technical field
It is that a kind of plugging while drilling is short the present invention relates to oil/gas drilling engineering plugging and cleaning well construction tool technical field
Connection device.
Background technology
Can often run into leakage in oilfield drilling construction needs the construction of leak stopping, but because drilling tool water hole is too small, leak stopping
Material is not easily passed through, and is caused to usually require all to rise by the drilling tool in well, is carried out plugging operations again after replacing drilling tool, so
The substantial amounts of time will be wasted, the best opportunity of leak stopping may be missed, whole wellbore construction is influenceed.
The content of the invention
The invention provides a kind of plugging while drilling short-circuit device, the deficiency of above-mentioned prior art is overcome, it can effectively be solved
Drilling tool in well all is risen by certainly existing plugging operations the need for existing, and is carried out again after replacing drilling tool, is expended the time, fallibility
The best opportunity of leak stopping is spent, the problem of influenceing whole wellbore construction.
The technical scheme is that realized by following measures：A kind of plugging while drilling short-circuit device, including outer barrel,
Lower contact, mandrel, sliding sleeve, upper helical teeth ring, upper spring, oblique ring gear and lower spring, the lower inside of outer barrel and lower contact it is upper
It is fixedly installed togather on the outside of portion, mandrel is set with outer barrel, the lower outside of mandrel and the upper inner of lower contact, which are fixed, pacifies
It is fitted together, the upper outside of mandrel is set with the sliding sleeve that can be slid in outer barrel and along mandrel；Sliding sleeve is included from top to bottom
During the diameter of upper joint sleeve, middle adapter sleeve and the lower joint sleeve being connected in turn, upper joint sleeve and lower joint sleeve is respectively less than
The diameter of adapter sleeve, the upper inner of upper joint sleeve is provided with orientation under the ball seat land being located above mandrel, correspondence ball seat land
Circumferentially there is at least one interior circulation hole on the upper joint sleeve put, in corresponding on the outer barrel of adapter sleeve position circumferentially
Have at least one outer circulation hole, the outer barrel of correspondence lower joint sleeve medium position and be fixed with block；On the outside of the middle part of lower joint sleeve
The upper helical teeth ring above block is set with, the bottom of upper helical teeth ring rotates relative to block provided with energy and periodically produce short position
The lower joint sleeve outer sheath of position is equipped between adapter sleeve and upper helical teeth ring in the upper ring gear that shifting and long displacement alternately change, correspondence
Upper spring in outer barrel；The lower outside of the lower joint sleeve of correspondence block lower position is consolidated with the upper inner of oblique ring gear
Dingan County is fitted together, and the top of oblique ring gear is provided with the lower ring gear that can drive the rotation of helical teeth ring and the spacing upper helical teeth ring of energy, right
Answer the mandrel outer sheath of position between oblique ring gear and lower contact that the lower spring being located in outer barrel is housed.
Here is the further optimization and/or improvements to foregoing invention technical scheme：
Above-mentioned upper ring gear may include ratchet on upper groove and doubly-linked, circumferentially have at least two uniformly at intervals in upper helical teeth ring bottom
Ratchet on doubly-linked is equipped between upper groove, every two adjacent upper grooves, ratchet includes on the doubly-linked of front side left facade,
Left domatic, right facade and the right side are domatic, and left facade and right facade are in vertical shape, and the left domatic and right side is domatic to incline in a left side is low right high
Ramp-like, the lower end of left facade and left domatic left end adjacent thereto link together and form the upper left tooth of ratchet on doubly-linked
Point, the lower end of right facade and right domatic left end adjacent thereto link together and form the upper right crown of ratchet on doubly-linked,
The left and right sides of upper groove are vertical plane, and the left surface bottom of upper groove links together with corresponding right domatic top,
The bottom of the right flank of upper groove links together with corresponding left facade top；Lower ring gear includes U-lag and V-shaped groove, under
The top of helical teeth ring is circumferentially alternately evenly equipped with U-lag and V-shaped groove, positioned at the right part top of the U-lag of front side and adjacent thereto
The left part top of V-shaped groove link together and form lower-left crown, positioned at the right part top of the V-shaped groove of front side and adjacent thereto
The left part top of U-lag link together and form bottom right crown；Block be located in U-lag and with the right flank of U-lag it
Between have spacing, lower-left corresponding with U-lag crown be located at doubly-linked on ratchet upper left crown and upper right crown between, it is described
The upper left crown of ratchet is located at the left of block on doubly-linked, the left surface of each U-lag with corresponding left facade or right facade
It is against together.
The quantity of above-mentioned U-lag can be identical with the quantity of upper groove.
The quantity of above-mentioned U-lag can be 1.5 times of upper groove quantity.
It can be provided with positioned at upper spring lower outside on the outside of the upper end of above-mentioned upper helical teeth ring and internal diameter is less than middle adapter sleeve external diameter
Exterior ring cap.
Between above-mentioned correspondence ball seat land and interior circulation hole sealing ring can be provided with the upper joint sleeve inwall of position；Middle connection
Sealing ring is provided between set and mandrel；It is equipped with above and below correspondence outer circulation hole between the middle adapter sleeve and outer barrel of position close
Seal；Sealing ring is provided between oblique ring gear and outer barrel.
In the limited ring dais that the upper inner of the outer barrel of above-mentioned correspondence sliding sleeve top position can be provided with, the top of limited ring dais
Side is provided with Internal Pipe Thread button.
Above-mentioned lower joint sleeve can be connected through a screw thread with oblique ring gear and be fixedly installed togather, the lower inside of oblique ring gear
Provided with the pressure-bearing land below lower joint sleeve.
Above-mentioned upper spring and lower spring can be compression spring.
It can be uniformly distributed with along the circumference on above-mentioned upper joint sleeve on four interior circulation holes, outer barrel and be uniformly distributed with four outer circulations along the circumference
Hole.
Two pieces of blocks can be uniformly distributed with above-mentioned outer barrel along the circumference.
Reasonable and compact in structure of the present invention, it is easy to use, the present invention can be made by the setting of upper helical teeth ring and oblique ring gear
The optional position of drilling tool in well can be connected to, the operation of multiple different demands can be carried out by a pitching, at any time can be by throwing
The corresponding stage is realized in the ball that builds the pressure triggering, and it cannot be only used for carrying out plugging operations, it may also be used for the cleaning of the borehole wall, it is in deep-well
The effect that drilling fluid takes sand can be improved in operation, especially the construction of drilling tool can have been avoided out completely in leak stopping operation, directly
Connect and carry the present invention to leakage well section, i.e. achievable leak stopping is excited by throwing the ball that builds the pressure, so as to save the substantial amounts of operating time；Tool
Excite it is quick, it is reliable in time, the characteristics of safe operation.
Brief description of the drawings
Accompanying drawing 1 is the main view cross section structure diagram of preferred embodiment in an initial condition.
Accompanying drawing 2 is the left view broken section structural representation of accompanying drawing 1.
Accompanying drawing 3 is the main view broken section structural representation under preferred embodiment in the first stage completion status.
Accompanying drawing 4 is main view broken section structural representation of the preferred embodiment under second stage completion status.
Accompanying drawing 5 is main view broken section structural representation of the preferred embodiment under phase III completion status.
Accompanying drawing 6 is the expansion knot of upper helical teeth ring and oblique ring gear under U-lag and upper groove quantity equal state in accompanying drawing 1
Structure schematic diagram.
Accompanying drawing 7 is the upper exhibition of helical teeth ring and oblique ring gear under 1.5 times of states that U-lag is upper groove quantity in accompanying drawing 1
Opening structure schematic diagram.
Coding in accompanying drawing is respectively：1 is outer barrel, and 2 be lower contact, and 3 be mandrel, and 4 be upper helical teeth ring, and 5 be upper spring, 6
It is lower spring for oblique ring gear, 7,8 be upper joint sleeve, and 9 be middle adapter sleeve, and 10 be lower joint sleeve, and 11 be ball seat land, and 12 be interior
Circulation port, 13 be outer circulation hole, and 14 be block, and 15 be upper groove, and 16 be upper left crown, and 17 be upper right crown, and 18 be U-lag,
19 be V-shaped groove, and 20 be lower-left crown, and 21 be bottom right crown, and 22 be exterior ring cap, and 23 be sealing ring, and 24 be limited ring dais, and 25 be interior
Pipe screw thread button, 26 be pressure-bearing land.
Embodiment
The present invention is not limited by following embodiments, can technique according to the invention scheme and actual conditions it is specific to determine
Embodiment.
In the present invention, for the ease of description, the description of the relative position relation of each part is according to Figure of description 1
Butut mode be described, such as：The position relationship of forward and backward, upper and lower, left and right etc. is the Butut according to Figure of description
Direction is determined.
With reference to embodiment and accompanying drawing, the invention will be further described：
As shown in accompanying drawing 1,2,3,4,5,6,7, the plugging while drilling short-circuit device include outer barrel 1, lower contact 2, mandrel 3, sliding sleeve, on
Helical teeth ring 4, upper spring 5, oblique ring gear 6 and lower spring 7, the lower inside of outer barrel 1 are fixedly mounted with the upper outside of lower contact 2
Together, mandrel 3 is set with outer barrel 1, the lower outside and the upper inner of lower contact 2 of mandrel 3 are fixedly installed togather, core
The upper outside of axle 3 is set with the sliding sleeve that can be slid in outer barrel 1 and along mandrel 3；Sliding sleeve includes from top to bottom being sequentially connected
The diameter of upper joint sleeve 8, middle adapter sleeve 9 and lower joint sleeve 10 together, upper joint sleeve 8 and lower joint sleeve 10 connects in being respectively less than
The diameter of female connector 9, the upper inner of upper joint sleeve 8 is provided with the ball seat land 11 for being located at the top of mandrel 3, correspondence ball seat land 11
Circumferentially have on the upper joint sleeve 8 that orientation is put at least one interior circulation hole 12, correspondence on the outer barrel 1 of the position of adapter sleeve 9
Circumferentially have at least one outer circulation hole 13, the outer barrel 1 of the correspondence medium position of lower joint sleeve 10 and be fixed with block 14；Under
The middle part outer sheath of adapter sleeve 10 is equipped with the upper helical teeth ring 4 for being located at the top of block 14, and the bottom of upper helical teeth ring 4 is provided with can relative gear
In the rotation of block 14 and the upper ring gear for periodically producing the alternately change of short essay and long displacement, correspondence adapter sleeve 9 and upper helical teeth ring 4 it
Between position the outer sheath of lower joint sleeve 10 be equipped be located at outer barrel 1 in upper spring 5；The lower joint sleeve of the correspondence lower position of block 14
The upper inner of 10 lower outside and oblique ring gear 6 is fixedly installed togather, and the top of oblique ring gear 6 is oblique provided with that can drive
Ring gear 4 rotate and can spacing upper helical teeth ring 4 lower ring gear, the outside of mandrel 3 of position between the oblique ring gear 6 of correspondence and lower contact 2
It is set with the lower spring 7 in outer barrel 1.
According to demand, when upper helical teeth ring 4 produces short essay with respect to block 14, interior circulation hole 12 should be located at the upper of mandrel 3
Side, i.e., the endoporus of mandrel 3 is connected with interior circulation hole 12, when upper helical teeth ring 4 produces long displacement with respect to block 14, the top surface of mandrel 3
The top in interior circulation hole 12 should be located at, i.e. the endoporus of mandrel 3 and interior circulation hole 12 is obstructed；The ball that builds the pressure can use existing known technology,
Such as metal ball, bakelite ball sealer.The present invention may be mounted at the optional position of DHA（It is typically mounted at drill set
Middle part is closed close to drill bit）, the present invention is connected in default pipe string, its G.I.H is then subjected to drillng operation, it is used
The cycle period of process includes the following four stage：
1）First stage：In an initial condition, when need to landwaste is efficiently cleared up in pit shaft when, can be put into pipe string
Build the pressure ball, and the ball that builds the pressure will come downwards at ball seat land 11 in the presence of high-pressure fluid, and promote sliding sleeve descending, so as to drive down
Helical teeth ring 6 is descending and compresses upper spring 5 and lower spring 7, and oblique ring gear 6 lower ring gear during descending will be released to upper helical teeth
Ring 4 it is spacing, now upper helical teeth ring 4 will be rotated by the pressure of upper spring 5 and relative block 14 produces short essay, and interior follow
Annular distance 12 is connected with outer circulation hole 13, at the same interior circulation hole 12 also with drilling tool water hole UNICOM, now can simultaneously in drilling process
The middle cleaning construction for carrying out well；
2）Second stage：When not needing washing and cleaning operation, operation pressure is reduced, upper spring 5 and lower spring 7 will gradually recover shape
Become, while promoting sliding sleeve up, so as to drive oblique ring gear 6 up, in this process, lower ring gear will drive upper helical teeth ring 4 to revolve
Turn to realize after certain angular displacement to the spacing of upper helical teeth ring 4, the now displacement of the relative block 14 of upper helical teeth ring 4 will be returned back to initially
State, under relatively low operation pressure effect herein, sliding sleeve will produce it is micro descending, due to the spacing and exterior ring cap 22 of upper helical teeth ring 4
Setting, it can be ensured that the descending extreme position of this pressure low sleeve be the middle bottom surface of adapter sleeve 9 be in contact with the top surface of exterior ring cap 22, this
When interior circulation hole 12 and outer circulation hole 13 it is obstructed, normal drilling operability can be carried out；
3）Phase III：When needing closure drilling tool water hole to carry out plugging operations, it is possible to increase operation pressure, so as to promote lower helical teeth
Ring 6 is descending and releases lower ring gear to the spacing of upper helical teeth ring 4, and now above helical teeth ring 4 will be rotated simultaneously by the pressure of upper spring 5
Long displacement is produced with respect to block 14, now mandrel 3 will be from sliding sleeve inner side closure interior circulation hole 12, outer circulation hole 13 and and positioned at cunning
The inner chamber of outer barrel 1 connection of upper outer is covered, the plugging operations of drilling tool are not played now；
4）Fourth stage：When blocking construction terminates, ground stops applying pressure, and sliding sleeve can be in the common of upper spring 5 and lower spring 7
Up under effect, so as to drive oblique ring gear 6 up, in this process, lower ring gear will drive upper helical teeth ring 4 to rotate certain angle position
Realize that, to the spacing of upper helical teeth ring 4, the now displacement of the relative block 14 of upper helical teeth ring 4 will return back to original state, sliding sleeve after shifting
Also set back, can proceed with normal drilling well and cycle operation.Reasonable and compact in structure of the present invention, it is easy to use, by upper
The setting of helical teeth ring 4 and oblique ring gear 6 can enable the invention to be connected to the optional position of drilling tool in well, can be entered by a pitching
The operation of the multiple different demands of row, can realize the corresponding stage, it cannot be only used for being blocked up by throwing the ball triggering that builds the pressure at any time
Leak operation, it may also be used for the cleaning of the borehole wall, it can improve the effect that drilling fluid takes sand in heavy duty service, especially in leak stopping
The construction of drilling tool can have been avoided out in operation completely, directly the present invention is carried to leakage well section, excited by throwing the ball that builds the pressure
Leak stopping is realized, so as to save the substantial amounts of operating time；It is quick with exciting, it is reliable in time, the characteristics of safe operation.
Above-mentioned plugging while drilling short-circuit device can be made further optimization and/or improvements according to actual needs：
As shown in accompanying drawing 1,2,3,4,5,6,7, upper ring gear includes ratchet on upper groove 15 and doubly-linked, on the upper bottom edge of helical teeth ring 4
Circle spacing is evenly equipped between at least two upper grooves 15, every two adjacent upper grooves 15 and is equipped with ratchet on doubly-linked, before being located at
Left facade, left domatic, right facade and the right side that ratchet includes on the doubly-linked of side are domatic, and left facade and right facade are in vertical shape, left
Domatic and right domatic in left low right high skewed, the lower end of left facade and left domatic left end adjacent thereto are connected to one
The upper left crown 16 of ratchet on doubly-linked is played and is formed, the lower end of right facade and right domatic left end adjacent thereto link together
And the upper right crown 17 of ratchet on doubly-linked is formed, the left and right sides of upper groove 15 are vertical plane, the left surface of upper groove 15
Bottom is linked together with corresponding right domatic top, and the bottom of the right flank of upper groove 15 is connected with corresponding left facade top
Together；Lower ring gear includes U-lag 18 and V-shaped groove 19, and circumferentially alternately U-lag 18 and V are evenly equipped with the top of oblique ring gear 6
Shape groove 19, links together and shape positioned at the left part top on the right part top of the U-lag 18 of front side and V-shaped groove 19 adjacent thereto
Into lower-left crown 20, the left part top positioned at the right part top of the V-shaped groove 19 of front side and U-lag 18 adjacent thereto is connected to one
Rise and form bottom right crown 21；Block 14 is located in U-lag 18 and has spacing between the right flank of U-lag 18, with the U-shaped
The corresponding lower-left crown 20 of groove 18 is located on doubly-linked between the upper left crown 16 and upper right crown 17 of ratchet, ratchet on the doubly-linked
Upper left crown 16 be located at the left of block 14, the left surface of each U-lag 18 is against with corresponding left facade or right facade
Together.Thus the present invention can be made to meet the four-stage of its cycle period, be specially：（1）Oblique ring gear 6 is descending, and U-lag 18 is solved
It is left domatic to be slid along block 14 and drive the upper rotation of helical teeth ring 4 to come downwards to gear except to the spacing of corresponding left facade or right facade
Block 14 is stuck in left domatic right facade between, and now, upper helical teeth ring 4 is with respect to the generation short essay of block 14, and right facade will be with block
14 right flank is against together, and upper right crown 17 is located at the left side of lower-left crown 20；（2）Oblique ring gear 6 is up, lower-left crown
20 will go upward to be against it is right it is domatic on, spacing due to 14 pairs of right facades of block, upper helical teeth ring 4 is by the drive of lower-left crown 20
Lower synchronization goes upward to upper right crown 17 higher than block 14, now right domatic to be slid along block 14 and drive upper helical teeth ring 4 to rotate
Spacing to U-lag 18 and corresponding left facade or right facade, upper right crown 17 is located at the left side of block 14；（3）Under oblique ring gear 6
OK, U-lag 18 is released to the spacing of corresponding left facade or right facade, right domatic to be slid along block 14 and drive upper helical teeth ring 4
Rotation comes downwards to the top of the card upper groove 15 of block 14, now, and upper helical teeth ring 4 produces long displacement with respect to block 14, and left facade will
Together with being against with the right flank of block 14, and upper left crown 16 is located at the left side of lower-left crown 20；（4）Oblique ring gear 6 is up, left
Lower crown 20 will go upward to be against it is left it is domatic on, spacing due to 14 pairs of left facades of block, upper helical teeth ring 4 will be in lower-left crown 20
Drive under synchronously go upward to upper left crown 16 higher than block 14, it is now left domatic to be slid along block 14 and drive upper helical teeth ring
4 rotations are spacing to U-lag 18 and corresponding left facade or right facade, now return back to initial position.
As shown in accompanying drawing 1,2,3,4,5,7, the quantity of U-lag 18 is identical with the quantity of upper groove 15.According to demand, fovea superior
The quantity of groove 15 and U-lag 18 is four.
As shown in accompanying drawing 1,2,3,4,5,6, the quantity of U-lag 18 is 1.5 times of the quantity of upper groove 15.According to demand, may be used
Circumferentially there are four upper grooves 15 uniformly at intervals in the bottom of upper helical teeth ring 4, and the quantity of U-lag 18 is six.
Be provided with as shown in accompanying drawing 1,2,3,4,5,6,7, on the outside of the upper end of upper helical teeth ring 4 positioned at the upper lower outside of spring 5 and
Internal diameter is less than the exterior ring cap 22 of the middle external diameter of adapter sleeve 9.According to demand, the spacing between middle adapter sleeve 9 and exterior ring cap 22 should be less than
Spacing between the middle top of adapter sleeve 9 and outer circulation hole 13；The present invention can so be made in the second stage of cycle period, sliding sleeve
Descending extreme position is that the middle bottom surface of adapter sleeve 9 is in contact with the top surface of exterior ring cap 22, now interior circulation hole 12 and outer circulation hole 13
It is obstructed, it is ensured that drillng operation is normally carried out.
As shown in accompanying drawing 1,2,3,4,5,6,7, the upper joint sleeve 8 of position between correspondence ball seat land 11 and interior circulation hole 12
Inwall is provided with sealing ring 23；Sealing ring 23 is provided between middle adapter sleeve 9 and mandrel 3；Above and below correspondence outer circulation hole 13
Sealing ring 23 is equipped between the middle adapter sleeve 9 and outer barrel 1 of position；Sealing ring 23 is provided between oblique ring gear 6 and outer barrel 1.This
Sample can make the present invention have good sealing, be easy to smoothly complete the operation that builds the pressure.
As shown in accompanying drawing 1,2,3,4,5,6,7, the spacing ring that the upper inner of the outer barrel 1 of sliding sleeve top position is provided with is corresponded to
Platform 24, the upper inner of limited ring dais 24 is provided with Internal Pipe Thread button 25.Limited ring dais 24 up to sliding sleeve can play position-limiting action,
The setting of Internal Pipe Thread button 25 can make the present invention be easy to connect with drilling rod.
As shown in accompanying drawing 1,2,3,4,5,6,7, lower joint sleeve 10 is connected through a screw thread with oblique ring gear 6 and is fixedly mounted on one
Rise, the lower inside of oblique ring gear 6 is provided with the pressure-bearing land 26 for being located at the lower section of lower joint sleeve 10.Its connection can so installed more
Plus it is convenient and strength-saving, and pressure of the adapter sleeve to oblique ring gear 6 can be undertaken by pressure-bearing land 26, so as to the spiral shell of both junctions
Line plays effective protection.
As shown in accompanying drawing 1,2,3,4,5,6,7, upper spring 5 and lower spring 7 are compression spring.According to demand, upper spring 5
Pretightning force can be provided with an initial condition with lower spring 7, can so it is better met duty requirements.
As shown in accompanying drawing 1,2,3,4,5,6,7, it is uniformly distributed with along the circumference on upper joint sleeve 8 on four interior circulation holes 12, outer barrel 1
It is uniformly distributed with four outer circulation holes 13 along the circumference.The flowing of high-pressure fluid, which can so be made, has good stability.
As shown in accompanying drawing 1,2,3,4,5,6,7, two pieces of blocks 14 are uniformly distributed with outer barrel 1 along the circumference.Its stress can so be made
More stablize.According to demand, block 14 can be the metal squares being made up of 35CrMo materials, be fixed by welding in outer barrel 1
On wall.
Above technical characteristic constitutes highly preferred embodiment of the present invention, and it has stronger adaptability and optimal implementation effect
Really, non-essential technical characteristic can be increased and decreased according to actual needs, to meet the demand of different situations.
Claims (10)
1. a kind of plugging while drilling short-circuit device, it is characterised in that including outer barrel, lower contact, mandrel, sliding sleeve, upper helical teeth ring, upper bullet
Spring, oblique ring gear and lower spring, the lower inside of outer barrel and the upper outside of lower contact are fixedly installed togather, and are set with outer barrel
There is mandrel, the lower outside of mandrel and the upper inner of lower contact are fixedly installed togather, and the upper outside of mandrel is set with position
In in outer barrel and the sliding sleeve that can be slid along mandrel；Sliding sleeve include from top to bottom be connected in turn upper joint sleeve, middle connection
The diameter of set and lower joint sleeve, upper joint sleeve and lower joint sleeve is respectively less than the diameter of middle adapter sleeve, the upper inner of upper joint sleeve
Provided with the ball seat land above mandrel, circumferentially have at least one on the upper joint sleeve of correspondence ball seat land lower position
Circumferentially there are at least one outer circulation hole, correspondence lower joint sleeve in individual interior circulation hole, correspondence on the outer barrel of adapter sleeve position
Block is fixed with the outer barrel of medium position；The middle part outer sheath of lower joint sleeve is equipped with the upper helical teeth ring being located above block, on
The bottom of helical teeth ring is corresponding provided with simultaneously can periodically produce the upper ring gear that short essay and long displacement alternately change relative to block rotation
The lower joint sleeve outer sheath of position is equipped with the upper spring being located in outer barrel between middle adapter sleeve and upper helical teeth ring；Below correspondence block
The upper inner of the lower outside of the lower joint sleeve of position and oblique ring gear is fixedly installed togather, and the top of oblique ring gear is provided with
The lower ring gear of upper helical teeth ring rotation and the spacing upper helical teeth ring of energy can be driven, the mandrel of position between the oblique ring gear of correspondence and lower contact
Outer sheath is equipped with the lower spring being located in outer barrel.
2. plugging while drilling short-circuit device according to claim 1, it is characterised in that upper ring gear is included on upper groove and doubly-linked
Ratchet, circumferentially has and is equipped between at least two upper grooves, every two adjacent upper grooves uniformly at intervals in upper helical teeth ring bottom
Ratchet on doubly-linked, left facade, left domatic, right facade and the right side that ratchet includes on the doubly-linked of front side is domatic, left facade and the right side
Facade is in vertical shape, left domatic and right domatic in left low right high skewed, the lower end of left facade and a left side adjacent thereto
Domatic left end links together and forms the upper left crown of ratchet on doubly-linked, the lower end of right facade and adjacent thereto right domatic
Left end link together and form the upper right crown of ratchet on doubly-linked, the left and right sides of upper groove are vertical plane, fovea superior
The left surface bottom of groove links together with corresponding right domatic top, the bottom of the right flank of upper groove and corresponding left facade
Top links together；Lower ring gear include U-lag and V-shaped groove, the top of oblique ring gear circumferentially alternately be evenly equipped with U-lag and
V-shaped groove, links together positioned at the left part top on the right part top of the U-lag of front side and V-shaped groove adjacent thereto and forms a left side
Lower crown, links together positioned at the left part top on the right part top of the V-shaped groove of front side and U-lag adjacent thereto and forms the right side
Lower crown；Block is located in U-lag and has spacing between the right flank of U-lag, lower-left corresponding with U-lag crown position
Between the upper left crown and upper right crown of ratchet on doubly-linked, the upper left crown of ratchet is located at the left of block on the doubly-linked,
Together with the left surface of each U-lag is against with corresponding left facade or right facade.
3. plugging while drilling short-circuit device according to claim 2, it is characterised in that the quantity of U-lag and the quantity of upper groove
It is identical.
4. plugging while drilling short-circuit device according to claim 2, it is characterised in that the quantity of U-lag is upper groove quantity
1.5 again.
5. the plugging while drilling short-circuit device according to claim 1 or 2 or 3 or 4, it is characterised in that outside the upper end of upper helical teeth ring
Side is provided with the exterior ring cap for being less than middle adapter sleeve external diameter positioned at upper spring lower outside and internal diameter.
6. the plugging while drilling short-circuit device according to claim 1 or 2 or 3 or 4, it is characterised in that correspondence ball seat land with it is interior
The upper joint sleeve inwall of position is provided with sealing ring between circulation port；Sealing ring is provided between middle adapter sleeve and mandrel；Correspondence is outer
Above and below circulation port sealing ring is equipped between the middle adapter sleeve and outer barrel of position；Provided with close between oblique ring gear and outer barrel
Seal；
Or/and, the limited ring dais that the upper inner of the outer barrel of sliding sleeve top position is provided with are corresponded to, the upper inner of limited ring dais is set
There is Internal Pipe Thread button.
7. plugging while drilling short-circuit device according to claim 5, it is characterised in that correspondence ball seat land and interior circulation hole it
Between position upper joint sleeve inwall be provided with sealing ring；Sealing ring is provided between middle adapter sleeve and mandrel；On correspondence outer circulation hole
Sealing ring is equipped between side and the middle adapter sleeve and outer barrel of lower position；Sealing ring is provided between oblique ring gear and outer barrel；
Or/and, the limited ring dais that the upper inner of the outer barrel of sliding sleeve top position is provided with are corresponded to, the upper inner of limited ring dais is set
There is Internal Pipe Thread button.
8. the plugging while drilling short-circuit device according to claim 1 or 2 or 3 or 4 or 7, it is characterised in that lower joint sleeve is with
Helical teeth ring, which is connected through a screw thread, to be fixedly installed togather, and the lower inside of oblique ring gear is provided with the pressure-bearing being located at below lower joint sleeve
Land；Or/and, upper spring and lower spring are compression spring.
9. the plugging while drilling short-circuit device according to claim 1 or 2 or 3 or 4 or 7, it is characterised in that edge on upper joint sleeve
It is evenly distributed on four interior circulation holes, outer barrel and is uniformly distributed with four outer circulation holes along the circumference；Or/and, it is uniformly distributed along the circumference in outer barrel
There are two pieces of blocks.
10. plugging while drilling short-circuit device according to claim 8, it is characterised in that be uniformly distributed with four on upper joint sleeve along the circumference
It is uniformly distributed with four outer circulation holes on individual interior circulation hole, outer barrel along the circumference；Or/and, it is uniformly distributed with two pieces of blocks in outer barrel along the circumference.
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| CN201710567680.9A CN107227942B (en) | 2017-07-12 | 2017-07-12 | Leak-stopping short-circuit device while drilling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710567680.9A CN107227942B (en) | 2017-07-12 | 2017-07-12 | Leak-stopping short-circuit device while drilling |
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| CN107227942A true CN107227942A (en) | 2017-10-03 |
| CN107227942B CN107227942B (en) | 2023-07-28 |
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| CN201710567680.9A Active CN107227942B (en) | 2017-07-12 | 2017-07-12 | Leak-stopping short-circuit device while drilling |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110671060A (en) * | 2019-10-17 | 2020-01-10 | 中国石油集团渤海钻探工程有限公司 | Hydraulic type circulation while drilling short joint |
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| CN110671060B (en) * | 2019-10-17 | 2021-04-23 | 中国石油集团渤海钻探工程有限公司 | Hydraulic type circulation while drilling short joint |
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| CN107227942B (en) | 2023-07-28 |
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