CN106150409B - A kind of huge discharge continous way underground sand removal de-plugging tubing string and sand removal de-plugging process - Google Patents
A kind of huge discharge continous way underground sand removal de-plugging tubing string and sand removal de-plugging process Download PDFInfo
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- CN106150409B CN106150409B CN201610762731.9A CN201610762731A CN106150409B CN 106150409 B CN106150409 B CN 106150409B CN 201610762731 A CN201610762731 A CN 201610762731A CN 106150409 B CN106150409 B CN 106150409B
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- valve
- sand removal
- oil pipe
- sand
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- 239000004576 sand Substances 0.000 title claims abstract description 108
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000005086 pumping Methods 0.000 claims description 14
- 210000002445 nipple Anatomy 0.000 claims description 8
- 239000010865 sewage Substances 0.000 claims description 4
- 239000013049 sediment Substances 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 38
- 241001074085 Scophthalmus aquosus Species 0.000 description 7
- 238000003860 storage Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- 238000005553 drilling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
-
- 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
- E21B10/00—Drill bits
- E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The invention discloses a kind of huge discharge continous way underground sand removal de-plugging tubing string and its sand removal de-plugging process, including pump barrel, hollow plunger and plunger connecting rod are installed in pump barrel, the plunger can slide up and down with respect to pump barrel, the upper end of plunger connecting rod is connected with travelling valve, the upper end of the travelling valve is connected with upper tubing seal is pumped, and the lower end of pump barrel is connected with rramming device, and bottom valve is equipped with inside the upper end of rramming device.When sand removal, from well head to the clear water for pouring into certain volume in upper oil pipe is pumped, the valve ball of travelling valve and sealing valve port is coupled；Upper oil pipe is pumped by constantly lifting from the top and puting down, the upper oil pipe of pump drives plunger ceaselessly to move up and down, and takes sand drain liquid and is drawn into after pump barrel that above oil pipe to well head returns row by pump.Travelling valve top of the invention uses closed structure, only needs next time process pipe string continuous operation that can thoroughly remove pit shaft settling sand completely, sand removal efficiency is significantly improved.
Description
Technical field
The present invention relates to oil recovery well shaft machinery sand removal technical field more particularly to a kind of huge discharge in petroleum industry are continuous
Formula underground sand removal de-plugging tubing string and its sand removal de-plugging process.
Background technique
Sand production is one of the main problem faced in domestic sandstone oil reservoir recovery process, seriously affects and restricts
The raising of the normal production and economic benefit of crude oil.Especially for the oil field for being in middle and later periods exploitation, high by well water,
It is laminated and drops the influence that big and individual well high intensity puts the unfavorable factors such as the voidage-injection imbalance of poor extract and pay interval, formation depletion,
Negative pressure is serious, and oil well generally seriously shakes out.
Bailing pump negative pressure sand bailing process technology is widely applied a kind of for removing the side of pit shaft settling sand by each oil field
Method.Traditional bailing pump negative pressure sand bailing process tubular column structure is from top to bottom successively are as follows: power oil pipe, bailing pump store up sand oil pipe, fishing
Abrasive cone.Using the continuous pumping mode lifted from the top and puted down repeatedly make the settling sand in pit shaft be pumped under the rolling action of well liquid into
And be deposited in storage sand oil pipe, and well liquid is recirculated back to by the circulation port on bailing pump top and is flowed into wellbore casing.This fishing
Sand technology has the characteristics that technical maturity, easy to operate.But when pit shaft settling sand column is very thick, sand face is higher, and hydrodynamic face
When deep, storage sand oil pipe that can only be tripping in a small amount of several will result in, to guarantee that the travelling valve at the top of bailing pump must sink
There is enough pump intake pressures below hydrodynamic face, to improve the leakproofness of travelling valve.But several a small amount of storage sand oil pipes
It can only deposit and accommodate a small amount of sand, can not once skim pit shaft thickness sand column completely, it is necessary to remove more times fishing sandpipe columns, undergo more
Secondary to repeat fishing sand, extending operation and accounting for one to two days well time can be only achieved the purpose for thoroughly removing pit shaft settling sand, cause fishing sand
Inefficiency.Tap the latent power the continuing to increase of degree especially with rolling development, depth, at present the deep-well of each oil field investment exploitation,
The very deep low energy producing well in hydrodynamic face is more and more, these wells show when carrying out pit shaft sand removal operation using traditional sand bailing process
Fishing sand low efficiency out, fishing sand are not thorough, or even the problem of fishing sand failure is more prominent.
Summary of the invention
Technical problem to be solved by the present invention lies in providing in view of the deficiency of the prior art, a kind of pit shaft is clear
Sand is high-efficient and the huge discharge continous way underground sand removal de-plugging tubing string and its sand removal de-plugging process of removal of bridge formation function may be implemented.
The technical scheme adopted by the invention is as follows: a kind of huge discharge continous way underground sand removal de-plugging tubing string, including pump barrel,
Hollow plunger and plunger connecting rod are installed in pump barrel, it is characterised in that: the upper end of plunger connecting rod is connected with travelling valve, the trip
The upper end of dynamic valve is connected with upper tubing seal is pumped, and the lower end of pump barrel is connected with rramming device, and bottom is equipped with inside the upper end of rramming device
Portion's valve pumps upper oil pipe by constantly lifting from the top and puting down, and oil pipe drives plunger ceaselessly to move up and down on pump, takes sand drain liquid and is taken out
Enter and returns row to well head by pumping upper oil pipe after pump barrel.
According to the above technical scheme, the travelling valve includes valve body, and the both ends of the valve body are respectively and on plunger connecting rod and pump
Oil pipe is connected, and the valve ball seat of valve port upward is equipped in the valve body, and valve ball is configured in valve ball seat, is equipped in the upper end of valve body
Top ball valve baffle is equipped with multiple flowing holes on the ball valve baffle of top.
According to the above technical scheme, the bottom valve is cover-plate type valve block comprising in being arranged inside rramming device upper end
The valve port that diameter becomes smaller is installed with bottom cover plate on the top of valve port, and one end and the rramming device of the bottom cover plate pass through torsional spring phase
Hingedly, turning over and falling by bottom cover plate, realizes the on or off of valve port.
According to the above technical scheme, the bottom of the rramming device is cone-shaped, is equipped with hollow cavity in the inside of rramming device,
Multiple inlet openings are equipped in the side wall of rramming device and bottom.
According to the above technical scheme, the thread root at the top of the pump barrel is symmetrically arranged with through spiracle.
According to the above technical scheme, the lower end of the pump barrel can be not only connected by pumping lower oil pipe with rramming device, but also can be with
Rramming device is connected directly.
According to the above technical scheme, the rramming device include driving screw rod, driving screw rod outer wall circumferentially arranged with a plurality of
Spiral slide is equipped with ratchet mechanism in driving screw jacket, and the ratchet mechanism is equipped with radially protruding part, the radially protruding
Part correspondence is embedded in spiral slide, and can be slid along the track of spiral slide, thus by the spiral slide of radially protruding part
Shifting movement is converted to the rotary motion of ratchet mechanism, and the ratchet mechanism is multiple by the reset spring of setting on the drive screw
Position, be pressed on the driving ratchet of ratchet mechanism always on driven ratchet, ratchet mechanism lower end be connected in turn support tube and
The lower end of rramming cone, the driving screw rod is protruded within support tube, and is socketed by seal nipple and support tube sealing, and can phase
Support tube is axially slid.
According to the above technical scheme, the ratchet mechanism includes driving ratchet and driven ratchet, and the radially protruding part is symmetrical
It is installed in the inner wall of driving ratchet, the lower end surface of the driving ratchet is equipped with active engaging tooth, the upper surface of the driven ratchet
Equipped with driven engaging tooth, active engaging tooth is meshed with driven engaging tooth.
According to the above technical scheme, the rramming cone includes rramming cone ontology and rramming miser, is set in rramming cone ontology
Have into sand chamber, multiple rrammings cone ontology inlet opening is equipped on rramming cone ontology and is connected with into sand chamber, rramming bores the upper of ontology
End is equipped with cover-plate type valve block, and one end of the cover-plate type valve block is hinged with rramming cone ontology by torsional spring, the cover-plate type valve
Piece is connected for opening and closing the sediment outflow channel being arranged on rramming cone ontology, the rramming miser with rramming cone ontology,
Multiple spiral brill teeth are equipped in the outer wall of the rramming miser, are again provided with multiple brills on the groove that adjacent brill tooth is formed
Head inlet opening, the drill bit inlet opening are connected with the centre bore of rramming miser.
A kind of construction method of huge discharge continous way underground sand removal de-plugging tubing string, characterized by the following steps:
Step 1: transferring sand removal de-plugging tubing string in huge discharge continous way underground to the sand face of pit shaft；
Step 2: making the valve ball and sealing valve port of travelling valve from well head to the clear water for pouring into certain volume in upper oil pipe is pumped
Mating；
Step 3: connecting rotary hose on well mouth oil pipe, the upper oil pipe of pump is constantly lifted from the top and puted down, oil pipe drives plunger on pump
It ceaselessly moves up and down, takes sand drain liquid and be drawn into after pump barrel and return row to well head by pumping upper oil pipe, eventually by rotary hose blowdown
Into ground sewage processing equipment.
It is obtained by the present invention to have the beneficial effect that
1, travelling valve top of the invention uses closed structure, and lateral circulation port, well liquid is no longer arranged in travelling valve top
Pit shaft will not be flowed back into again, and solid phase particles along pump barrel and can pump upper oil pipe string always to well head with well liquid under continuous swabbing action
The row of returning only needs next time process pipe string continuous operation can be by well eventually by the blowdown of well head rotary hose into ground sewage tank
Cylinder settling sand thoroughly removes completely, and sand removal efficiency is greatly improved；
2, since the present invention realizes continuous pump drainage sand removal function, setting storage sand tube is no longer needed to, the lower end of pump barrel both can be with
It is connected directly, can also be connected by an oil pipe or tubing nipple with rramming device, is substantially reduced so that pumping lower clearance, further
Improve suction capactity；
3, rramming device of the invention moving downward by control driving screw rod drives ratchet mechanism to generate positive (overlook
It rotates clockwise), the rotation of the ratchet mechanism drives support tube and rramming cone to rotate in the forward direction realization rramming, above mentions driving screw rod
When, driven ratchet does not rotate, and driving ratchet resets under the action of reset spring with driven ratchet, makes rramming cone can be with
The hard sand lid of pit shaft settling sand column is bored mill and smashed to pieces by the mode of automatic rotary drilling mill, and then realizes that normal pumping fishing sand is made
Industry improves fishing sand success rate；
4, the lower end of rramming of the invention cone is equipped with rramming miser, is equipped on rramming miser and bores tooth, effectively mentions
High rramming efficiency；
5, it is connect due to travelling valve top with upper tubing seal is pumped, pump intake pressure suffered by travelling valve has no with pit shaft liquid level
Relationship, will no longer very thick, the sand face by pit shaft settling sand column when carrying out pit shaft sand removal operation with sand removal de-plugging process of the invention
It is higher, and the deep this contradictory factor limitation in hydrodynamic face；And in the oil pipe of pump barrel top constantly on the fluid column that returns it is more next
Higher, the pump intake pressure that travelling valve is born at the top of pump barrel also can be higher and higher therewith, and the sealing reliability of upstroke is taking out sand
Negative pressure pumping intensity, the pumping sand removal efficiency formed in pump barrel can all be continuously improved therewith.
Detailed description of the invention
Fig. 1 is the structure chart of huge discharge continous way provided by the invention underground sand removal de-plugging tubing string.
The flow direction signal of well liquid when Fig. 2 is huge discharge continous way provided by the invention underground sand removal de-plugging tubing string upper lifting pipe post
Figure.
Fig. 3 is the B-B cross-sectional view in Fig. 1.
Fig. 4 is the A-A cross-sectional view in Fig. 1.
Fig. 5 is the structure chart of rramming device provided in the present invention.
Fig. 6 is the A-A cross-sectional view in Fig. 5.
Fig. 7 is the main sectional view in Fig. 5 at B.
Fig. 8 is the perspective view of the driving screw rod of rramming device.
Fig. 9 is the perspective view of the explosion of ratchet mechanism in the present invention.
In figure: 1-rotary hose；Oil pipe on 2-pumps；3-top ball valve baffles；4-top ball valves；5-top ball valve seats；
6-pump barrels；6-1-pump barrel spiracle；7-plunger connecting rods；8-plungers；9-pump lower oil pipe；10-rrammings cone；10-1-cover board
Formula valve block；10-2-rramming coning fluid apertures；11-settling sands；12-artificials bottom of a well；13-well liquids；14-casings；15-well heads；
16-driving screw rods；16-1-screw rod connector；16-2-screw spiral slideway；17-springs；18-sliding shims；19-pins
Nail；20-driving ratchets；21-driven ratchets；22-support tubes；22-1-support tube spiracle；23-seal nipples；24—
Sealing ring；25-sealing rings；26-variable buckle connectors；27-rrammings cone；27-1-cover-plate type valve block；27-2-rramming bores ontology；
27-2-1-rramming bores ontology inlet opening；27-3-rramming miser；27-3-1-drill bit inlet opening.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
As shown in Figs 1-4, a kind of huge discharge continous way underground sand removal de-plugging tubing string, including pump barrel 6 are present embodiments provided,
Hollow plunger 8 and plunger connecting rod 7 are installed in pump barrel 6, plunger 8 can slide with respect to about 6 pump barrel, between the two between
Gap is less than sand body particle diameter, and the side wall of the pump barrel is equipped with through spiracle 6-1, and spiracle 6-1 is located at 6 top of pump barrel
The root of screw thread.The upper end of plunger connecting rod 7 is connected with travelling valve, and the upper end of the travelling valve is connected with the upper sealing of oil pipe 2 is pumped, pumps
The lower end of cylinder 6 is connected with rramming device 10.
The travelling valve includes valve body, and the both ends of the valve body are connected with plunger connecting rod 7 and the upper oil pipe 2 of pump respectively, described
It is equipped with the valve ball seat 5 of valve port upward in valve body, valve ball 4 is configured in valve ball seat 5, is kept off in the upper end of valve body equipped with top ball valve
Plate 3 is equipped with multiple flowing holes on the ball valve baffle of top.
In the present embodiment, the bottom of the rramming device 10 be it is cone-shaped, be equipped with hollow cavity in the inside of rramming device,
The side wall of rramming device and bottom are equipped with multiple inlet opening 10-2, and the valve port that internal diameter becomes smaller is arranged inside rramming device upper end,
The top of valve port is equipped with cover-plate type valve block 10-1, and one end of the cover-plate type valve block 10-1 passes through the inner wall phase of torsional spring and rramming device
Hingedly, by the overturning of cover-plate type valve block 10-1, the on or off of valve port is realized.
In the present embodiment, no longer need to connect storage sand oil pipe between the lower end and rramming device of pump barrel, the two can direct phase
Even, lower oil pipe 9 or tubing nipple can also be pumped by one to be connected with rramming device.
The sand removal de-plugging process of above-mentioned huge discharge continous way underground sand removal de-plugging tubing string, includes the following steps:
Step 1: transferring sand removal de-plugging tubing string in huge discharge continous way underground to the sand face 11 of pit shaft, make rramming device with
Sand face contact；
Step 2: making the valve ball 4 and sealing valve port of travelling valve from well head to the clear water for pouring into certain volume in upper oil pipe is pumped
Mating；
Step 3: connecting rotary hose 1 on well mouth oil pipe, the upper oil pipe 2 of pump, 2 band of oil pipe on pump are above mentioned using workover rig
Dynamic 8 uplink of plunger, at this point, travelling valve is closed, cover-plate type valve block 10-1 is opened, and takes the feed liquor that sand drain liquid 13 passes through rramming device together
The valve port of hole 10-2 and cover-plate type valve block 10-1 enter in pump barrel 6；Plunger 8 reaches after top dead center, and decentralization pumps upper oil pipe, pushes column
Fill in 8 downlinks, at this point, cover-plate type valve block 10-1 is closed, travelling valve is opened, sand grains under the carrying of well liquid by pump upper oil pipe 2 to
15 row of returning of well head, eventually by 1 blowdown of rotary hose into ground sewage tank.So continuously to move in circles, pit shaft sand face constantly declines,
Sand column is gradually thinning, only need to connect single oil pipe by root to lengthen entire sand removal pipe between the first oil pipe of well head and rotary hose
Column realizes that next time process pipe string continuous operation can thoroughly remove pit shaft settling sand to realize continuous downlink sand removal
Completely.Meanwhile because travelling valve top does not have lateral circulation port, pit shaft levels pressure is no longer acted on travelling valve.That is,
Pump intake pressure suffered by travelling valve has no bearing on pit shaft liquid level, will no longer when with technology progress pit shaft sand removal operation
It is very thick by pit shaft settling sand column, sand face is higher, and the deep this contradictory factor limitation in hydrodynamic face.Moreover, as pump oils
In pipe constantly on the fluid column that returns it is higher and higher, the pump intake pressure that top travelling valve is born also can be higher and higher therewith, upstroke
Sealing reliability, the negative pressure pumping intensity, the pumping sand removal efficiency that are formed in sand pump cylinder can all be continuously improved therewith.
In addition, pump barrel uses pump diameter specification for the huge discharge of φ 83mm, long stroke underground sand removal tubing string, pass through continuous pump drainage
Operation can form the swabbing action of strength to perforated interval.And as well liquid constantly returns discharge well head, it can continue to reduce well
Cylinder liquid level, is greatly reduced the flowing bottomhole pressure (FBHP) in the short time, dredges stratum duct, certain releasing ponding is played to oil well,
It can restore production capacity in time after making its operation is complete to open pumping and obtain a degree of effect of increasing production.
In the present embodiment, in order to further increase sand removal efficiency of the invention, rramming device of the invention also be can be set into
Spin drilling type rramming device, and structure is as shown in figures 5-9 comprising driving screw rod 16 is driving the outer wall of screw rod 16 circumferentially
Equipped at least 4 spiral slide 16-2, it is set with ratchet mechanism outside driving screw rod 16, the ratchet mechanism includes driving ratchet
20 and driven ratchet 21, the lower end surface of driving ratchet 20 is equipped with active engaging tooth, the upper surface of the driven ratchet 21 be equipped with from
Dynamic engaging tooth, active engaging tooth are meshed with driven engaging tooth.4 radially protruding parts are symmetrically arranged in the inner wall of driving ratchet 20
19, the correspondence of radially protruding part 19 is embedded in spiral slide 16-2, and can be slid along the track of spiral slide, thus
The spiral sliding motion of radially protruding part is converted to the rotary motion of ratchet mechanism, wherein radially protruding part 19 can be pin
It may be other types of component, the present embodiment is illustrated for for pin.There is one in the upper end of driving screw rod 16
The screw rod connector 16-1 that formula is processed into, the reset spring 17 is connected between screw rod connector 16-1 and driving ratchet 20, described
Ratchet mechanism is resetted by reset spring 17, is pressed on the driving ratchet of ratchet mechanism always on driven ratchet, is resetting bullet
The lower end of spring 17 is equipped with sliding shim 18.Support tube 22 and rramming cone 27, the driving are connected in turn in ratchet mechanism lower end
The lower end of screw rod 16 is protruded into support tube 22, is connected with seal nipple 23 in the lower end of driving screw rod 16, the seal nipple
Upper end is tightly connected by sealing ring 24 and driving screw rod 16, and sealing socket is realized by sealing ring 24 and support tube 22 in lower end,
And it can be with respect to the axial sliding of support tube 22.Support tube spiracle 22- is equipped with positioned at the top of seal nipple 23 on support tube 22
1。
The rramming cone 27 is connected by variable buckle connector 26 with support tube 22, and the rramming cone 27 includes that rramming bores ontology
27-2 and rramming miser 27-3 is equipped with into sand chamber in rramming cone ontology 27-2, is equipped with multiple rrammings on rramming cone ontology
Cone ontology inlet opening 27-2-1 is connected with into sand chamber, and the upper end that rramming bores ontology is equipped with cover-plate type valve block 27-1, the cover board
One end of formula valve block 27-1 and rramming cone ontology 27-2 are hinged by torsional spring, the cover-plate type valve block for opening and closing
The sediment outflow channel being arranged on rramming cone ontology, the rramming miser 27-3 are connected with rramming cone ontology 27-2.
Multiple spiral brill teeth are equipped in the outer wall of the rramming miser 27-3, are set on the groove that adjacent brill tooth is formed
There are multiple drill bit inlet opening 27-3-1, the drill bit inlet opening 27-3-1 to be connected with the centre bore of rramming miser.
The working principle of the rramming device of the present embodiment are as follows: rramming device is supported on hard sand and covers, and only needs well head vertically
Tubing string is lifted repeatedly, is transmitted to downward pressure on the driving screw rod 16 of rramming device, due to four inlayed on driving ratchet 20
Driving pin is to correspond to be embedded in four spiral slide 22-1 of driving screw rod, when driving screw rod 16 is transported downward vertically
When dynamic, rotation torque will be transmitted on driving ratchet 20 by pin, in the pressure of spring 17 and 16-2 pairs of spiral slide
Under the positive frictional force effect of pin, driving ratchet 20 is generated and overlooks clockwise rotary torsion, always due to ratchet mechanism
Rotary torsion will be transmitted on driven ratchet 21 by engagement, driving ratchet 20, and then drive support tube 22,26 and of variable buckle connector
Rramming cone 27, which generates, overlooks clockwise rotary motion, and then so that bottom rramming miser 27-3 is generated brill mill to hard sand lid and smash
Broken strength；When well head is lifted up fishing sandpipe column, 16 uplink synchronization of screw rod is driven, at this point, in the pressure and spiral of spring 17
For slideway under the reverse friction power effect of pin, driving ratchet 20, which generates, overlooks rotary motion counterclockwise, but according to ratchet
The principle of mechanism, driving ratchet 20 and driven ratchet 21 will move out meshing state, i.e. driving ratchet 20 can be on driven ratchet 21
Reverse slide can not will reversely rotate torque and be transmitted to driven ratchet 21 so that in lower component, i.e., driven ratchet 21 is with lower component meeting
It is synchronized and lifts by driving screw rod 16, but without rotating, avoid the generation that all junction thread looseness move back button.Work as well
Mouth again the entire fishing sandpipe column of pressurization downwards when, rramming device will repeat above-mentioned movement again, so recycle, reach and smash hard sand to pieces
Lid fishes out the purpose of the smooth drilling depth of sand.
By the specific design to spiral slide, each down stroke of rramming device can rotate 3 circles automatically, can effectively play to hard
The brill mill of matter sand lid acts on.
Rramming device can be repeated as many times and use through over cleaning, inspection, reparation after having used out, and rramming bores 27, cover-plate type
Valve block 27-1, spring 17 etc. can be with dismounting and changes.
Claims (10)
1. a kind of huge discharge continous way underground sand removal de-plugging tubing string, including pump barrel, are installed on hollow plunger and column in pump barrel
Connecting rod is filled in, the plunger can slide up and down with respect to pump barrel, it is characterised in that: the upper end of plunger connecting rod is connected with travelling valve, institute
The upper end for stating travelling valve is connected with upper tubing seal is pumped, and the lower end of pump barrel is connected with rramming device, sets inside the upper end of rramming device
There is bottom valve, pump upper oil pipe by constantly lifting from the top and puting down, oil pipe drives plunger ceaselessly to move up and down on pump, takes sand drain liquid
It is drawn into after pump barrel and returns row to well head by pumping upper oil pipe.
2. huge discharge continous way according to claim 1 underground sand removal de-plugging tubing string, it is characterised in that: the travelling valve packet
Valve body is included, the both ends of the valve body are connected with plunger connecting rod and the upper oil pipe of pump respectively, and the valve of valve port upward is equipped in the valve body
Ball seat is configured with valve ball in valve ball seat, is equipped with top ball valve baffle in the upper end of valve body, is equipped on the ball valve baffle of top more
A flowing hole.
3. huge discharge continous way according to claim 1 or 2 underground sand removal de-plugging tubing string, it is characterised in that: the bottom
Valve is cover-plate type valve block comprising the valve port that internal diameter becomes smaller is arranged inside rramming device upper end, is installed on the top of valve port
One end of bottom cover plate, the bottom cover plate is hinged with rramming device by torsional spring, turning over and falling by bottom cover plate, real
The on or off of existing valve port.
4. huge discharge continous way according to claim 1 or 2 underground sand removal de-plugging tubing string, it is characterised in that: the rramming
The bottom of device be it is cone-shaped, the inside of rramming device be equipped with hollow cavity, be equipped in the side wall of rramming device and bottom multiple
Inlet opening.
5. huge discharge continous way according to claim 1 or 2 underground sand removal de-plugging tubing string, it is characterised in that: the pump barrel
The thread root at top is symmetrically arranged with through spiracle.
6. huge discharge continous way according to claim 1 or 2 underground sand removal de-plugging tubing string, it is characterised in that: the pump barrel
Lower end be connected by pumping lower oil pipe with rramming device.
7. huge discharge continous way according to claim 1 or 2 underground sand removal de-plugging tubing string, it is characterised in that: the rramming
Device includes driving screw rod, is driving the outer wall of screw rod that ratchet is housed in driving screw jacket circumferentially arranged with a plurality of spiral slide
Mechanism, the ratchet mechanism are equipped with radially protruding part, and the radially protruding part correspondence is embedded in spiral slide, and can be along spiral shell
The track of rotation slideway is slid, so that the spiral sliding motion of radially protruding part is converted to the rotary motion of ratchet mechanism,
The ratchet mechanism is resetted by the reset spring of setting on the drive screw, is pressed on the driving ratchet of ratchet mechanism always
On driven ratchet, support tube and rramming cone are connected in turn in ratchet mechanism lower end, support is protruded into the lower end of the driving screw rod
It in cylinder, and is socketed, and can be axially slid with respect to support tube by seal nipple and support tube sealing.
8. the huge discharge continous way underground sand removal de-plugging tubing string according to claim 7, it is characterised in that: the ratchet machine
Structure includes driving ratchet and driven ratchet, and the radially protruding part is symmetrically installed in the inner wall of driving ratchet, the driving ratchet
Lower end surface be equipped with active engaging tooth, the upper surface of the driven ratchet is equipped with driven engaging tooth, and active engaging tooth is nibbled with driven
Tooth is closed to be meshed.
9. huge discharge continous way according to claim 7 underground sand removal de-plugging tubing string, it is characterised in that: the rramming cone packet
Rramming cone ontology and rramming miser are included, is equipped in rramming cone ontology into sand chamber, is equipped with multiple rrammings on rramming cone ontology
Cone ontology inlet opening is connected with into sand chamber, and rramming bores the upper end of ontology equipped with cover-plate type valve block, and the one of the cover-plate type valve block
End is hinged with rramming cone ontology by torsional spring, and the cover-plate type valve block is arranged for opening and closing boring in rramming on ontology
Sediment outflow channel, the rramming miser are connected with rramming cone ontology, are equipped in the outer wall of the rramming miser multiple spiral
Tooth is bored, multiple drill bit inlet openings are equipped on the groove that tooth is formed in adjacent bore, in the drill bit inlet opening and rramming miser
Heart hole is connected.
10. a kind of utilize sand removal de-plugging tubing string in huge discharge continous way underground described in any claim in claim 1 to 9
Sand removal de-plugging process, characterized by the following steps:
Step 1: transferring sand removal de-plugging tubing string in huge discharge continous way underground to the sand face of pit shaft；
Step 2: the valve ball of travelling valve and sealing valve port is coupled from well head to the clear water for pouring into certain volume in upper oil pipe is pumped；
Step 3: connecting rotary hose on well mouth oil pipe, the upper oil pipe of pump is constantly lifted from the top and puted down, oil pipe drives plunger not stop on pump
Up and down motion, take sand drain liquid and be drawn into after pump barrel and return row to well head by pumping upper oil pipe, eventually by rotary hose blowdown into ground
Face sewage disposal device.
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| CN201610762731.9A CN106150409B (en) | 2016-08-29 | 2016-08-29 | A kind of huge discharge continous way underground sand removal de-plugging tubing string and sand removal de-plugging process |
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| CN107975364B (en) * | 2017-10-25 | 2021-03-30 | 中国石油天然气股份有限公司 | Method and device for determining gas well limit sand discharge time |
| CN110439508B (en) * | 2019-08-30 | 2020-05-12 | 东营市润腾油气技术有限公司 | Oil well negative pressure blockage relieving device and process |
| CN111577179B (en) * | 2020-06-05 | 2024-09-13 | 中国石油化工股份有限公司 | Swimming bottom plug |
| CN114109277B (en) * | 2020-08-31 | 2024-05-07 | 中国石油化工股份有限公司 | Self-adaptive rotary guide shoe |
| CN115012880B (en) * | 2022-07-19 | 2023-08-22 | 西安石油大佳润实业有限公司 | Fracturing sand suction device of coal-bed gas well and method for replacing drilling sand cover |
| CN115263254B (en) * | 2022-08-15 | 2023-07-14 | 陈彦洪 | Articulated ratchet flow adjustable layering oil pumping device |
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Effective date of registration: 20191230 Address after: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Co-patentee after: Jianghan Oil Production Plant of SINOPEC Jianghan Oilfield Company Patentee after: China Petrochemical Co., Ltd. Address before: 433123 No.1 Xiangyang development road, administrative unit directly under the central government of Hubei Province Patentee before: Jianghan Oil Production Plant of SINOPEC Jianghan Oilfield Company |
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