CN110439464A - Underground rotating particle jet stream sprays drilling apparatus - Google Patents

Underground rotating particle jet stream sprays drilling apparatus Download PDF

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Publication number
CN110439464A
CN110439464A CN201910748625.9A CN201910748625A CN110439464A CN 110439464 A CN110439464 A CN 110439464A CN 201910748625 A CN201910748625 A CN 201910748625A CN 110439464 A CN110439464 A CN 110439464A
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China
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particle
sealing block
spray head
nozzle
outer cylinder
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CN110439464B (en
Inventor
赵健
常方瑞
韩晓强
徐依吉
张在朋
张宪超
郭文卿
刘宝欣
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China Petroleum and Chemical Corp
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China University of Petroleum East China
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00Special methods or apparatus for drilling
    • E21B7/18Drilling by liquid or gas jets, with or without entrained pellets

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (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)
  • Earth Drilling (AREA)

Abstract

The invention belongs to petroleum drilling and mining fields, in particular to a kind of underground rotating particle jet stream sprays drilling apparatus, including filter, centralizer lug, upper sealing block, guiding axis, lower sealing block, rotary shaft, oil filler point, anti-jump bearing, alignment bearing, particle spraying spray head, side nozzle, surrounding nozzle, central nozzle etc., by the way that the particles such as sand grains are added in pumping work liquid, utilize the dedicated rotating spray device in underground, realize the filtration, purification to particle and fluid, and righting is carried out to underground spray head by righting blade, dedicated particle spraying spray head ejects high speed rotation particle stream flow, rotating particle jet stream high speed impact target zone, it is effective to realize underground high-efficient drilling, particle rotating jet can cover entire shaft bottom, rotation speed is adjustable, not by bit pressure, the limitation of revolving speed and small size wellbore, effective protection casing, it mentions High rate of penetration reduces construction cost.

Description

Underground rotating particle jet stream sprays drilling apparatus
Technical field
The present invention relates to a kind of underground rotating particle jet streams to spray drilling apparatus, belongs to petroleum drilling and mining field.
Background technique
With continually developing for domestic old filed, water ratio in oil well constantly rises, and yield constantly declines, and covers damage, water It alters equal down-hole accidents to happen occasionally, to restore old well capacity again, handles down-hole accident, underground beats plug sidetracking, tests and alter closure, bore The Downhole Constructions such as plug are more and more, and this mode is compared with new well is beaten, and is not only able to effectively save cost, and can have Imitate Remaining Oil.
There are mainly two types of the modes of currently used underground work drilling, and one is drive oil pipe by Power Tong in well head Rotation, oil pipe lower part connect drill bit, drive downhole drill bit rotary drilling by the rotation of well head Power Tong, this mode operates multiple Miscellaneous, the limited strength of oil pipe ontology, oil pipe connection buckle has larger limitation, the cutting energy of downhole drill bit to bit pressure and revolving speed Power is very limited, therefore the efficiency of underground drilling is all very low, while often occurring bit freezing phenomenon during construction.It is another More commonly used is underground screw rod+drill bit, is sent screw rod+drill bit combination tool to underground by oil pipe, and oil pipe itself does not rotate, The rotation of underground screw rod is driven by well head pumping circulation liquid, and then drives bit, carries out underground drilling.Which is to screw rod Quality requirement is higher, and underground work condition also has certain requirement, and conventional screw+drill bit rate of penetration is not high.If When well depth of constructing is shallower, bit pressure applies difficulty, and the efficiency of both the above mode is lower, and abrasion of the two ways to casing It is larger, for the casing of minor diameter, construct also extremely difficult.
Underground rotating particle jet stream sprays drilling technology, the hydraulic energy of cycle working fluid is taken full advantage of, by work Make that the particles such as sand grains are added in liquid, high speed rotation particle stream flow, rotation speed are ejected by the dedicated rotating spray device in underground It spends adjustable, realizes the rapidly and efficiently drilling of underground, all standing of the particle stream flow to shaft bottom can effectively improve rate of penetration, and And do not limited by bit pressure, small size wellbore etc., it is low to the abrasion of casing, while construction personnel's labor intensity is effectively reduced, it reduces Cost effectively improves the economic benefit in oil field.
Summary of the invention
The technical problem to be solved by the present invention is providing a kind of realization underground rotating particle jet stream injection drilling, grain is rotated Sub- jet stream high speed impact target zone, effective to realize underground high-efficient drilling, rotation speed is adjustable, and particle stream flow can cover entirely Shaft bottom is not limited, effective protection casing by bit pressure, revolving speed and small size wellbore, is improved rate of penetration, is reduced construction cost Underground rotating particle jet stream sprays drilling apparatus.
Rotating particle jet stream in underground of the present invention sprays drilling apparatus, including pit shaft, filter outer cylinder, annular gear Circle, filter, centralizer cylinder, centralizer lug, attachment device, upper sealing block, O-ring seal, guidance tape, sealing block lip type are close Envelope, compressed spring, guiding axis, lower sealing block, thrust bearing, gas vent, rotary body outer cylinder, rotary shaft, anti-jump bearing, righting axis Hold, oil filler point, gland, gland lip seal, retaining ring combination, particle spraying spray head, nozzle cavity, side nozzle, surrounding nozzle, Central nozzle composition.Filter outer cylinder is arranged inside pit shaft, filter outer cylinder top female thread lower part pin thread, annular retaining ring and mistake Filter welding, annular retaining ring are arranged in the step surface of filter outer cylinder female thread bottom, step surface annular retaining ring can be blocked not to Lower movement, filter outer cylinder can be fixed by being increased without extra device, and working solution is from top to bottom by filter outer cylinder female thread Into under the action of annular retaining ring, particle and working solution enter in filter, strainer screen diameter 1-6mm, particle and work Make impurity in liquid to be stored by filtering into filter, is downwardly into centralizer cylinder, helps by filtered particle and working solution Positive device blade is arranged on centralizer drum outer wall, plays centralizing function placed in the middle, and centralizer lug is evenly distributed on centralizer cylinder, cloth 3-6 are set, centralizer lug can be that cuboid band chamfering shape is also spiral shape.
Attachment device is arranged between centralizer cylinder and rotary body outer cylinder, and attachment device external connection rotary body outer cylinder is interior Portion connects upper sealing block, and three o type sealing rings, sealing block and attachment device in realization are arranged between upper sealing block and attachment device Between sealing, upper sealing block do not rotate, and guiding axis is arranged between attachment device and upper sealing block, leads to the effect of guiding axis, even Relative rotary motion is not present between connection device and upper sealing block, but can be along guiding axis direction relative motion, in guiding axis Compressed spring is intraocularly arranged in the upper sealing block hole of outside wall surface, and compressed spring is in compressive state, under the action of compressed spring, on Sealing block and lower sealing block compress, and seal, and upper sealing block and lower sealing stock material are ceramics or steel alloy, lower sealing block The lower inside of upper sealing block, lower sealing block rotation are set, and lower sealing block is extend out on the inside of sealing block, and guidance tape setting exists Between upper sealing block and lower sealing block, guiding takes up guiding and obstructs the effect of particle, and sealing block lip seal setting is being oriented to Band lower part, after lower sealing block inside has certain pressure, pressure is transmitted to sealing block lip seal by guidance tape by fluid, Sealing block lip seal under the effect of the pressure, starts to open have platform between upper sealing block and lower sealing block close to upper sealing block Rank, it may have sealing and guiding role were both prevented by guidance tape, the collective effect of sealing block lip seal, compressed spring compression Stop particle and entered seal failure caused by seal chamber, also effectively realizes the rotatory sealing that particle fluid is contained to high pressure.Rotation Shaft setting rotates simultaneously in lower sealing block lower part, rotary shaft and lower sealing block, and thrust bearing setting is being revolved in rotary body outer cylinder Between shaft, thrust bearing can enable devices to bear the bit pressure and pulling force of axial direction, and anti-jump bearing setting is in rotation axis platform Rank lower part, anti-jump bearing are tapered roller bearing, can prevent the bounce of spray head during the work time, improve device lifetime, help Positive bearing is arranged in anti-jump bearing lower part, and alignment bearing is cylinder roller bearing, has centralizing function, keeps rotary shaft placed in the middle, protects Rotary sealing appts are protected, gland is arranged between rotary body outer cylinder and rotary shaft, for pushing down top alignment bearing, gland lip type It is sealingly disposed in gland inside upper part, sealing gland and rotary shaft, retaining ring combination settings are in gland lower part two sides, and sealing is pressed respectively Lid and rotary shaft and gland and rotary body outer cylinder, retaining ring combination include two parts, lower part packing and upper sealing gasket, and packing is used Seal the particle of bulky grain, sealing ring is used to seal fluid and little particle particle, close by packing, sealing ring, gland lip type The three-level sealing function of envelope, can effectively prevent external particles and fluid to enter in rotary shaft.Gas vent, oil filler point setting are rotating On external cylinder, after oil filler point is opened, deceleration oil can be injected into the hole between rotary body outer cylinder and rotary shaft, for adjusting rotation The rotation speed of shaft, and then the rotation speed of particle spraying spray head is adjusted, gas vent is rotating to use to be discharged during oiling Gas between external cylinder and rotary shaft makes the oil smoothly hole between the full rotary body outer cylinder of filling and rotary shaft that slows down.
Rotary shaft lower part is arranged in particle spraying spray head, and for spraying rotating particle jet stream, nozzle cavity setting is sprayed in particle It penetrates in spray head, particle and fluid flow downwardly into nozzle cavity from top rotary shaft, and nozzle cavity bottom is hemispherical, can optimize spray Head inner cavity flow field, reduces the resistance that fluid enters lower nozzle, and particle goes successively to side nozzle, surrounding spray under fluid carrying Mouth, central nozzle, spray rotating particle jet stream, and rotating particle jet stream high speed impact lower part target zone generates greatly instantaneous punching Stress is hit, can effectively realize the broken of target zone, realizes underground rotating particle jet-flow efficient injection drilling, side nozzle setting exists Particle spraying spray head side can be sprayed outward rotating particle jet stream by side, effectively increase the work of particle spraying spray head injection With area, the propulsive thrust of particle spraying spray head rotation also can provide, the setting of surrounding nozzle is in particle spraying head of the nozzle surrounding, and four All nozzles can effectively spray the target zone of head of the nozzle, and surrounding nozzle is divided into two kinds, and one is direct-injections, be primarily used to impact cutting Broken target zone, another kind of is rotation spray, is primarily used to reaction force needed for providing spray head rotation, and central nozzle setting exists Particle spraying head of the nozzle, central nozzle can effectively spray spray head lower central target zone, and α is radial along particle spraying spray head On angle, be mainly used to direct-injection and go out particle stream flow impact grinding lower part target zone, and by adjusting α angle, grain is adjusted Sub- jet stream and is uniformly hit in purpose layer surface in the range that involves in shaft bottom, and α is 0-45 °, and β is along particle spraying Angle in spray head circumferential direction is mainly to provide the reaction force of particle spraying spray head rotation, pushes the rotation of particle spraying spray head, α It is 15-60 °.The beneficial effects of the present invention are:
By the way that the particles such as sand grains are added in pumping work liquid, using the dedicated rotating spray device in underground, realize to grain The filtration, purification of son and fluid, and righting is carried out to underground spray head by righting blade, dedicated particle spraying spray head ejects High speed rotation particle stream flow, rotating particle jet stream high speed impact target zone, effective to realize underground high-efficient drilling, rotation speed can It adjusts, particle stream flow can cover entire shaft bottom, not limited by bit pressure, revolving speed and small size wellbore, effective protection casing, improve Rate of penetration reduces construction cost.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is Tu1Zhong A-A partial side view.
Fig. 3 is the top view of B-B in Fig. 1.
Fig. 4 is the bottom plan view of Fig. 1.
Fig. 5 is surrounding nozzle C-C side view in Fig. 4.
In figure: 1, pit shaft 2, filter outer cylinder 3, annular retaining ring 4, filter 5, centralizer cylinder 6, centralizer lug 7, attachment device 8, upper sealing block 9, O-ring seal 10, guidance tape 11, sealing block lip seal 12, compressed spring 13, Guiding axis 14, lower sealing block 15, thrust bearing 16, gas vent 17, rotary body outer cylinder 18, rotary shaft 19, anti-jump bearing 20, alignment bearing 21, oil filler point 22, gland 23, gland lip seal 24, retaining ring combination 25, particle spraying spray head 26, Nozzle cavity 27, side nozzle 28, surrounding nozzle 29, central nozzle.
Specific embodiment
The present invention is described further with reference to the accompanying drawing:
As shown in Fig. 1~5, rotating particle jet stream in underground of the present invention sprays drilling apparatus, including pit shaft 1, filtering Device outer cylinder 2, annular retaining ring 3, filter 4, centralizer cylinder 5, centralizer lug 6, attachment device 7, upper sealing block 8, O-ring seal 9, guidance tape 10, sealing block lip seal 11, compressed spring 12, guiding axis 13, lower sealing block 14, thrust bearing 15, rotary body Outer cylinder gas vent 16, rotary body outer cylinder 17, rotary shaft 18, anti-jump bearing 19, alignment bearing 20, oil filler point 21, gland 22, gland Lip seal 23, retaining ring combination 24, particle spraying spray head 25, nozzle cavity 26, side nozzle 27, surrounding nozzle 28, center spray Mouth 29.Filter outer cylinder 2 is arranged inside pit shaft 1,2 top female thread lower part pin thread of filter outer cylinder, annular retaining ring 3 and filter 4 welding, annular retaining ring 3 are arranged in the step surface of 2 female thread bottom of filter outer cylinder, step surface annular retaining ring 3 can be blocked not to Lower movement, filter outer cylinder 2 can be fixed by being increased without extra device, and working solution is female by filter outer cylinder 2 from top to bottom It tips in under the action of annular retaining ring 3, particle and working solution enter in filter 4,4 strainer diameter 1-6mm of filter, grain Impurity is downwardly into centralizer by filtered particle and working solution by filtering storage into filter 4 in son and working solution In cylinder 5, centralizer lug 6 is arranged on 5 outer wall of centralizer cylinder, plays centralizing function placed in the middle, centralizer lug 6, which is evenly distributed on, to be helped On positive device cylinder 5, arrangement 3-6, centralizer lug 6 can be that cuboid band chamfering shape is also spiral shape.Attachment device 7 is arranged Between centralizer cylinder 5 and rotary body outer cylinder 16,7 external connection rotary body outer cylinder 16 of attachment device, inside connects upper sealing block 8, three o type sealing rings 9 are set between upper sealing block 8 and attachment device 7, it is close between sealing block 8 and attachment device 7 in realization Envelope, upper sealing block 8 do not rotate, and guiding axis 13 is arranged between attachment device 7 and upper sealing block 8, lead to the effect of guiding axis 13, connection Relative rotary motion is not present between device 7 and upper sealing block 8, but can be oriented to along 13 direction relative motion of guiding axis Compressed spring 12 is intraocularly arranged in 8 hole of upper sealing block of 13 outside wall surface of axis, and compressed spring 12 is in compressive state, in compressed spring 12 Under the action of, upper sealing block 8 and lower sealing block 14 compress, and seal, and upper sealing block 8 and lower 14 material of sealing block are ceramics Or the lower inside of upper sealing block 8 is arranged in steel alloy, lower sealing block 14, lower sealing block 14 can rotate, and lower sealing block 14 is stretched Supreme 8 inside of sealing block, guidance tape 10 are arranged between upper sealing block 8 and lower sealing block 14 out, and guidance tape 10 plays guiding and resistance Every the effect of particle, after the setting of sealing block lip seal 11 has certain pressure on the inside of 10 lower part of guidance tape, lower sealing block 14, Pressure is transmitted to sealing block lip seal 11, effect of the sealing block lip seal 11 in pressure by guidance tape 10 by fluid Under, start to open have step between upper sealing block 8 and lower sealing block 14 close to upper sealing block 8, it may have sealing and guiding are made With the collective effect compressed by guidance tape 10, sealing block lip seal 11, compressed spring 12 had both prevented particle to enter close Seal failure caused by chamber is sealed, the rotatory sealing that particle fluid is contained to high pressure is also effectively realized.Rotary shaft 17 is arranged under 14 lower part of sealing block, rotary shaft 18 and lower sealing block 14 rotate simultaneously, and the setting of thrust bearing 15 is being rotated in rotary body outer cylinder 16 Between axis 18, thrust bearing 15 can enable devices to bear the bit pressure and pulling force of axial direction, and the anti-jump setting of bearing 19 is rotating 18 step lower part of axis, anti-jump bearing 19 are tapered roller bearing, can prevent the bounce of spray head during the work time, improve device In the service life, for the setting of alignment bearing 20 in anti-jump 19 lower part of bearing, alignment bearing 20 is cylinder roller bearing, has centralizing function, makes Rotary shaft 18 is placed in the middle, protects rotary sealing appts, gland 22 is arranged between rotary body outer cylinder 17 and rotary shaft 18, for pushing down Top alignment bearing 20, gland lip seal 23 are arranged in 22 inside upper part of gland, sealing gland 22 and rotary shaft 18, retaining ring group 24 settings are closed in 22 lower part two sides of gland, sealing gland 22 and rotary shaft 18 and gland 22 and rotary body outer cylinder 17, keep off respectively Circle combination 24 includes two parts, lower part packing and upper sealing gasket, and packing is used to seal the particle of bulky grain, and sealing ring is used to close Seal fluid and little particle particle, by packing, sealing ring, gland lip seal 23 three-level sealing function, can effectively prevent outer Portion's particle and fluid enter in rotary shaft 18.Gas vent 16, oil filler point 21 are arranged on rotary body outer cylinder 17, and oil filler point 21 is opened Afterwards, deceleration oil can be injected, into the hole between rotary body outer cylinder 17 and rotary shaft 18 for adjusting the rotation speed of rotary shaft 18 Degree, and then the rotation speed of particle spraying spray head 25 is adjusted, gas vent 16 is discharged during oiling to use in rotary body outer cylinder 17 Gas between rotary shaft 18 makes the oil smoothly hole between the full rotary body outer cylinder 17 of filling and rotary shaft 18 that slows down.Particle spray It penetrates spray head 25 and 18 lower part of rotary shaft is set, for spraying rotating particle jet stream, nozzle cavity 26 is arranged in particle spraying spray head 25 Interior, particle and fluid flow downwardly into nozzle cavity 26 from top rotary shaft 18, and 26 bottom of nozzle cavity is hemispherical, can optimize spray Head 26 flow field of inner cavity, reduces the resistance that fluid enters lower nozzle, and particle goes successively to side nozzle 27, four under fluid carrying All nozzles 28, central nozzle 29, spray rotating particle jet stream, and rotating particle jet stream high speed impact lower part target zone generates very big Temporary impact stress, can effectively realize the broken of target zone, realize underground rotating particle jet-flow efficient injection drilling, side spray Mouth 27 is arranged in 25 side of particle spraying spray head, and rotating particle jet stream can be sprayed outward by side, effectively increases particle spraying The active area that spray head 25 sprays, also can provide the propulsive thrust of the rotation of particle spraying spray head 25, and surrounding nozzle 28 is arranged in particle 25 bottom surrounding of spray head is sprayed, surrounding nozzle 28 can effectively spray the target zone of head of the nozzle, and it is two kinds that surrounding nozzle 28, which is divided to, and one Kind is direct-injection, is primarily used to impact grinding target zone, and another kind of is rotation spray, is primarily used to needed for providing spray head rotation Reaction force, central nozzle 29 be arranged in 25 bottom of particle spraying spray head, central nozzle 29 can effectively spray in spray head lower part Heart target zone, α are the angle along particle spraying spray head 23 radially, are mainly used to direct-injection and go out particle stream flow impact grinding lower part Target zone, and by adjusting α angle, particle stream flow is adjusted in the range that involves in shaft bottom, and uniformly purpose is arrived in strike In layer surface, α is 0-45 °, and β is mainly to be to provide particle spraying spray head 25 along the angle in 23 circumferential direction of particle spraying spray head The reaction force of rotation pushes particle spraying spray head 25 to rotate, and α is 15-60 °.

Claims (3)

1. a kind of underground rotating particle jet stream sprays drilling apparatus, including pit shaft (1), filter outer cylinder (2), annular retaining ring (3), Filter (4), centralizer cylinder (5), centralizer lug (6), attachment device (7), upper sealing block (8), O-ring seal (9), guiding Band (10), sealing block lip seal (11), compressed spring (12), guiding axis (13), lower sealing block (14), thrust bearing (15), Gas vent (16), rotary body outer cylinder (17), rotary shaft (18), anti-jump bearing (19), alignment bearing (20), oil filler point (21), pressure Cover (22), gland lip seal (23), retaining ring combination (24), particle spraying spray head (25), nozzle cavity (26), side nozzle (27), surrounding nozzle (28), central nozzle (29), filter outer cylinder (2) setting is internal in pit shaft (1), on filter outer cylinder (2) Portion female thread lower part pin thread, annular retaining ring (3) and filter (4) are welded, and annular retaining ring (3) is arranged in filter outer cylinder (2) female thread Annular retaining ring (3) can be blocked and not moved downward by the step surface of bottom, step surface, and working solution is from top to bottom by filter outer cylinder (2) female thread enters, and under the action of annular retaining ring (3), particle and working solution enter in filter (4), in particle and working solution Impurity in filter (4), is downwardly into centralizer cylinder (5) by filtered particle and working solution, is helped by filtering storage Positive device blade (6) is arranged on centralizer cylinder (5) outer wall, plays centralizing function placed in the middle, and attachment device (7) is arranged in centralizer cylinder (5) between rotary body outer cylinder (17), attachment device (7) external connection rotary body outer cylinder (17), inside connects upper sealing block (8), three o type sealing rings (9) are set between upper sealing block (8) and attachment device (7), sealing block (8) and connection dress in realization The sealing between (7) is set, upper sealing block (8) does not rotate, guiding axis (13) are set between attachment device (7) and upper sealing block (8), The effect of logical guiding axis (13), there is no relative rotary motions between attachment device (7) and upper sealing block (8), but can be along Compressed spring (12) are intraocularly arranged in upper sealing block (8) hole of guiding axis (13) outside wall surface in guiding axis (13) direction relative motion, Compressed spring (12) is in compressive state, under the action of compressed spring (12), upper sealing block (8) and lower sealing block (14) pressure Tightly, it seals, upper sealing block (8) and lower sealing block (14) material are ceramics or steel alloy, and lower sealing block (14) setting exists The lower inside of upper sealing block (8), lower sealing block (14) can rotate, and lower sealing block (14) extend out on the inside of sealing block (8), Guidance tape (10) is arranged between upper sealing block (8) and lower sealing block (14), and guidance tape (10) plays the work of guiding and barrier particle With, after sealing block lip seal (11) setting has certain pressure on the inside of guidance tape (10) lower part, lower sealing block (14), pressure It is transmitted to sealing block lip seal (11) by fluid by guidance tape (10), effect of the sealing block lip seal (11) in pressure Under, start to open have step between upper sealing block (8) and lower sealing block (14), it may have seal and lead close to upper sealing block (8) It was both prevented to effect by guidance tape (10), the collective effect of sealing block lip seal (11), compressed spring (12) compression Particle enters seal failure caused by seal chamber, also effectively realizes the rotatory sealing for containing particle fluid to high pressure, rotary shaft (18) setting rotates simultaneously in lower sealing block (14) lower part, rotary shaft (18) and lower sealing block (14), thrust bearing (15) setting In rotary body outer cylinder (17) between rotary shaft (18), thrust bearing (15) can enable devices to bear axial direction bit pressure and Pulling force, in rotary shaft (18) step lower part, anti-jump bearing (19) is tapered roller bearing for anti-jump bearing (19) setting, can be prevented The bounce of spray head during the work time improves device lifetime, and alignment bearing (20) is arranged in anti-jump bearing (19) lower part, righting axis Holding (20) is cylinder roller bearing, has centralizing function, makes rotary shaft (18) between two parties, protects rotary sealing appts, gland (22) It is arranged between rotary body outer cylinder (17) and rotary shaft (18), for pushing down top alignment bearing (20), gland lip seal (23) in gland (22) inside upper part, sealing gland (22) and rotary shaft (18), retaining ring combines (24) and is arranged in gland for setting (22) lower part two sides, difference sealing gland (22) and rotary shaft (18) and gland (22) and rotary body outer cylinder (17), retaining ring group Closing (24) includes two parts, lower part packing and upper sealing gasket, and packing is used to seal the particle of bulky grain, and sealing ring is used to seal Fluid and little particle particle, by packing, sealing ring, gland lip seal (23) three-level sealing function, can effectively prevent outer Portion's particle and fluid enter in rotary shaft (18), and gas vent (16), oil filler point (21) are arranged on rotary body outer cylinder (17), oiling After hole (21) is opened, the oil that slows down can be injected into the hole between rotary body outer cylinder (17) and rotary shaft (18), for adjusting rotation The rotation speed of shaft (18), and then the rotation speed of particle spraying spray head (25) is adjusted, gas vent (16) uses discharge oiling Gas between rotary body outer cylinder (17) and rotary shaft (18) in the process makes to slow down the smooth filling of oil completely rotary body outer cylinder (17) The hole between rotary shaft (18), rotary shaft (18) lower part is arranged in particle spraying spray head (25), for spraying rotating particle jet stream, In particle spraying spray head (25), particle and fluid flow downwardly into spray head from top rotary shaft (18) for nozzle cavity (26) setting Chamber (26), nozzle cavity (26) bottom are hemispherical, can optimize nozzle cavity (26) flow field, reduce fluid and enter lower nozzle Resistance, particle go successively to side nozzle (27), surrounding nozzle (28), central nozzle (29) under fluid carrying, spray rotation Particle stream flow, rotating particle jet stream high speed impact lower part target zone, generates great temporary impact stress, can effectively realize purpose Layer is crushed, and realizes that underground rotating particle jet-flow efficient injection drilling, side nozzle (27) are arranged in particle spraying spray head (25) Side can be sprayed outward rotating particle jet stream by side, effectively increase the active area of particle spraying spray head (25) injection, It can provide the propulsive thrust of particle spraying spray head (25) rotation, surrounding nozzle (28) is arranged in particle spraying spray head (25) bottom four Week, surrounding nozzle (28) can effectively spray the target zone of head of the nozzle, and surrounding nozzle (28) is divided into two kinds, and one is direct-injections, main If being used to impact grinding target zone, another kind of is rotation spray, is primarily used to reaction force needed for providing spray head rotation, Central nozzle (29) is arranged in particle spraying spray head (25) bottom, and central nozzle (29) can effectively spray spray head lower central purpose Layer.
2. a kind of underground rotating particle jet stream according to claim 1 sprays drilling apparatus, it is characterised in that: filter (4) strainer diameter 1-6mm, centralizer lug (6) are evenly distributed on centralizer cylinder (5), and arrangement 3-6, centralizer lug (6) Can be cuboid band chamfering shape be also spiral shape.
3. a kind of underground rotating particle jet stream according to claim 1 sprays drilling apparatus, it is characterised in that: α be along The angle of particle spraying spray head (25) radially is mainly used to direct-injection and goes out particle stream flow impact grinding lower part target zone, Er Qietong α angle is overregulated, particle stream flow is adjusted in the range that involves in shaft bottom, and uniformly hit in purpose layer surface, α 0- 45 °, β is mainly to be to provide the anti-work of particle spraying spray head (25) rotation along the angle in particle spraying spray head (25) circumferential direction Firmly, particle spraying spray head (25) rotation is pushed, α is 15-60 °.
CN201910748625.9A 2019-08-14 2019-08-14 Underground rotary particle jet injection drilling device Active CN110439464B (en)

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CN111047961A (en) * 2020-01-02 2020-04-21 中国石油大学(华东) Hydraulic high-pressure particle jet flow drilling and plugging test device
CN111101864A (en) * 2020-01-07 2020-05-05 西安石油大学 Particle type drilling impact equipment
CN112647904A (en) * 2020-12-24 2021-04-13 中国石油大学(华东) Horizontal underground phase sand blasting perforation blockage removing tool
CN113202436A (en) * 2021-05-24 2021-08-03 中国石油大学(华东) Rotary particle jet pipe column cutting tool
CN113338829A (en) * 2021-06-01 2021-09-03 中海油田服务股份有限公司 Rotary speed-limiting jetting tool
CN113790025A (en) * 2021-09-17 2021-12-14 中国石油大学(华东) Double-flow-passage particle jet flow auxiliary drill bit rotary drilling and milling tool

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CN112647904A (en) * 2020-12-24 2021-04-13 中国石油大学(华东) Horizontal underground phase sand blasting perforation blockage removing tool
CN113202436A (en) * 2021-05-24 2021-08-03 中国石油大学(华东) Rotary particle jet pipe column cutting tool
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CN113790025B (en) * 2021-09-17 2023-08-04 中国石油大学(华东) Double-runner particle jet flow auxiliary drill bit rotary drilling and milling tool

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