CN115182691B - Slurry conveying equipment for oil exploitation - Google Patents
Slurry conveying equipment for oil exploitation Download PDFInfo
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- CN115182691B CN115182691B CN202211091697.9A CN202211091697A CN115182691B CN 115182691 B CN115182691 B CN 115182691B CN 202211091697 A CN202211091697 A CN 202211091697A CN 115182691 B CN115182691 B CN 115182691B
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- 239000002002 slurry Substances 0.000 title claims abstract description 27
- 230000005540 biological transmission Effects 0.000 claims abstract description 26
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 238000004062 sedimentation Methods 0.000 claims abstract description 16
- 238000009434 installation Methods 0.000 claims description 12
- 239000003921 oil Substances 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000005553 drilling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000000151 deposition Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 210000002445 nipple Anatomy 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002917 insecticide Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
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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
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
-
- 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
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/063—Arrangements for treating drilling fluids outside the borehole by separating components
- E21B21/065—Separating solids from drilling fluids
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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)
- Screw Conveyors (AREA)
Abstract
The invention relates to the technical field of oil exploitation mechanisms, in particular to slurry conveying equipment for oil exploitation, which comprises a conveying device and a sedimentation tank, wherein the conveying device is also provided with a connector and two conveying pipes, the conveying pipes are divided into an inner pipe and an outer pipe, the connector comprises an upper connecting part, a lower connecting part and an adjusting mechanism, the adjusting mechanism comprises an annular baffle plate, a driving assembly, a transmission assembly and a plurality of guide plates, the transmission assembly is provided with a plurality of slide blocks, one slide block is in transmission connection with the driving assembly, the annular baffle plate and the guide plates are arranged, so that the second backflow channel passively guides slurry backflow, and meanwhile, the annular baffle plate and the guide plates can actively control the backflow path of the slurry, thereby achieving the purpose of dredging the second backflow channel, and meanwhile, the pressure of the slurry in a well can be adjusted according to the mode, so that the backflow speed of the slurry is improved.
Description
Technical Field
The invention relates to the technical field of oil exploitation mechanisms, in particular to slurry conveying equipment for oil exploitation.
Background
Petroleum is one of the main objects of geological exploration, is a viscous dark brown liquid called as industrial blood, is stored in the upper part of the crust, mainly comprises a mixture of various alkanes, cyclanes and aromatic hydrocarbons, is widely accepted, is considered to be formed by the long evolution of organisms in ancient oceans or lakes, belongs to biological deposition and oil change, and is not renewable; the latter considers that oil is generated by carbon in the earth crust, is irrelevant to biology, and renewable oil is mainly used as fuel oil and gasoline and is also a raw material of a plurality of chemical industry products, such as solution, chemical fertilizer, insecticide, plastics and the like.
Chinese patent CN201711233685.4 discloses a local underbalanced drilling backflow device, which comprises: the coiled tubing is connected to a coiled tubing joint at the lower end of the coiled tubing; the coiled tubing joint is sleeved outside the coiled tubing joint and is connected with the coiled tubing joint in a clamping manner; an annular cavity is formed between the upper drill bit joint and the continuous pipe joint, and a bearing is arranged in the annular cavity; the drill bit is connected to the lower end of the drill bit upper connector; the drill bit is provided with a nozzle; the backflow nipple is connected to the upper end of the drill bit upper joint; a backflow hole is formed in the side wall of the backflow nipple; the upper end of the drill rod is connected with a drill rod; the technical problem that mud is stuck on the wall of a well and the outer wall of the oil pipe during drilling is solved through the backflow hole, the mud is conveyed to the ground in a micro-annular auxiliary mode, and meanwhile, the mud carries rocks, so that the stability of a mud conveying circulation loop is guaranteed.
Disclosure of Invention
Based on this, it is necessary to provide a slurry conveying device for oil exploitation aiming at the problems in the prior art.
In order to solve the problems of the prior art, the invention adopts the technical scheme that:
a slurry conveying device for oil exploitation comprises a conveying device and a sedimentation tank arranged beside the conveying device, wherein the conveying device is further provided with a connector and two conveying pipes, each conveying pipe is divided into an inner pipe and an outer pipe, the two conveying pipes are coaxially arranged in a well for oil exploitation in a vertical state, the connector is arranged at the joint of the two conveying pipes and comprises an upper connecting part, a lower connecting part and an adjusting mechanism, the upper connecting part is of a hollow cylindrical structure and is sleeved on the outer pipe of the conveying pipe, a fixing frame is arranged in the center of the upper connecting part, a fixing ring is arranged in the center of the fixing frame and is sleeved on the inner pipe of the conveying pipe, the lower connecting part is of a hollow conical structure, the area of the top end of the lower connecting part is smaller than that of the bottom end of the lower connecting part, the top end of the lower connecting part is fixedly connected on the fixing frame, and the inner wall of the lower connecting part and the outer wall of the inner pipe form a first backflow channel, the inner wall of the connecting part on the outer wall of the lower connecting part forms a second backflow channel, the adjusting mechanism is positioned between the upper connecting part and the lower connecting part and comprises an annular baffle, a driving component, a transmission component and a plurality of guide plates, the annular baffle is sleeved at the bottom end of the upper connecting part and is in sliding fit with the upper connecting part, the driving component is positioned at the top end of the upper connecting part and is in transmission connection with the driving component, the guide plates are arranged around the axis of the connector at equal intervals, the transmission component is positioned above the guide plates and is provided with a plurality of slide blocks, all the slide blocks can slide and move along the radial direction of the connector, the number of the slide blocks corresponds to the number of the guide plates one by one, the tops of all the guide plates are respectively hinged with all the slide blocks, and the bottoms of all the guide plates are hinged with the bottoms of the inner wall of the upper connecting part, one of the sliding blocks is in transmission connection with the driving component.
Preferably, the inside of the upper connecting portion is provided with an installation cavity matched with the annular baffle, a plurality of sliding grooves are formed in the installation cavity in an equidistant mode and surround the axis of the upper connecting portion, and the annular baffle is provided with sliding strips matched with the sliding grooves.
Preferably, the driving assembly comprises a first screw rod and a first rotary driving motor, the first screw rod is located inside the installation cavity in a vertical state, the first screw rod penetrates through one of the sliding strips of the annular baffle, the first screw rod is in threaded fit with the sliding strips, the first rotary driving motor is located at the top end of the upper connecting portion, and the first rotary driving motor penetrates through the top of the upper connecting portion and is fixedly connected with the first screw rod.
Preferably, the guide plate is extending structure, drive assembly still includes the second lead screw, a plurality of slide bar and a plurality of arc telescopic link, the total of the quantity of second lead screw and all slide bars equals the quantity of guide plate, second lead screw and all slide bars all are the radial extension of horizontal state edge upper junction portion, and second lead screw and all slide bar equidistance encircle the axis setting in upper junction portion, all sliders overlap respectively and locate on second lead screw and all slide bars, wherein be located the slider on the second lead screw and the screw-thread fit of second lead screw, all telescopic links are located respectively between two adjacent sliders, the second lead screw is connected with the drive assembly transmission.
Preferably, the transmission assembly further comprises a first helical gear and a second helical gear, the first helical gear is sleeved on the middle portion of the first screw rod, the second helical gear is sleeved on one end, far away from the fixing frame, of the second screw rod, and the first helical gear is meshed with the second helical gear.
Preferably, the outside of lower connecting portion is provided with a plurality of water conservancy diversion strip, and all water conservancy diversion strips all encircle the axis distribution in lower connecting portion along the equidistance.
Preferably, the bottom of the lower connecting part is provided with a slot matched with the annular baffle plate.
Preferably, the bottoms of the upper connecting part and the lower connecting part are both arc-shaped structures.
Preferably, conveyor includes the second rotary driving motor, the spiral leaf, rotation axis and pay-off chamber, the pay-off chamber is cylindric structure, the pay-off chamber is the horizontality and places, the rotation axis is the rotatable inside that is located the pay-off chamber of horizontality, the spiral leaf cover is located on the rotation axis, the second rotary driving motor is located one of them end outer wall in pay-off chamber, the second rotary driving motor runs through outer wall and rotation axis fixed connection through the pay-off chamber, be provided with discharge gate and feed inlet on the pay-off chamber, the discharge gate is connected with the interior union coupling of conveyer pipe, the discharge gate is connected with the sedimentation tank.
Preferably, a mud pump is arranged beside the sedimentation tank, a first pipeline and a second pipeline are arranged on the mud pump, the first pipeline is connected with the outer pipe of the conveying pipe, one end of the second pipeline is connected with a well for oil exploitation, and the other end of the second pipeline is connected with the first pipeline.
Compared with the prior art, the beneficial effect of this application is:
1. this application is through the setting of second return channel for mud can flow into between outer tube and the inner tube at the in-process of backward flow, makes mud can follow the passageway between outer tube and the inner tube and flow, thereby plays the pressure of balanced mud backward flow.
2. This application drives ring baffle through drive assembly for ring baffle removes along the axis of connector, thereby plugs up second return channel through ring baffle, makes mud can't be in the backward flow in to second return channel, avoids second return channel's further card to die.
3. This application has still driven the removal of slider through drive assembly's start-up simultaneously, the removal of slider has driven the removal of all articulated guide plates, because the bottom of guide plate is articulated with the bottom of the inside of outer tube, the removal of all sliders makes the top of all guide plates all to the axle center side swing of conveyer pipe, thereby cut the passageway between outer tube inner wall and the inner tube outer wall, make mud can't continue the backward flow, mud can promote guide plate under inertial effect this moment, mud can flow to second return channel's upper portion along the guide plate under the effect of pressure, thereby it erodes to second return channel in the reverse direction, thereby make the mediation of second return channel.
4. This application is through adjustment mechanism's setting for when the passive guide mud backward flow of second return flow channel, the route of the backward flow of control mud that accessible ring baffle and guide plate can be initiative, thereby play the purpose of dredging second return flow channel, also can adjust the pressure that is located the mud in the well simultaneously according to this mode, thereby promote the speed of the backward flow of mud.
5. This application passes through the setting of water conservancy diversion strip for when mud upwards surged, can be along the better second return passage that removes of direction of water conservancy diversion strip, the water conservancy diversion strip is preferred to be set up to the S-shaped, thereby can improve the velocity of flow of mud, makes its better second return passage that passes through.
7. This application is through the setting of slot for annular baffle can insert the inside of slot when the axis lapse of last connecting portion, thereby avoids mud to flow in the second return channel, improves the leakproofness that shelters from second return channel, in order to avoid mud to get into second return channel, prevents further in the second return channel to be died by the grit card, improves adjustment mechanism mediation second return channel's possibility.
8. This application is the setting of arc angle structure through the bottom of last connecting portion and lower connecting portion for when mud passes through along last connecting portion and lower connecting portion, be difficult for on adhesion and last connecting portion and the lower connecting portion, improve the trafficability characteristic of mud.
Drawings
FIG. 1 is a perspective view of the present application in its entirety;
FIG. 2 is a top view of the entirety of the present application;
FIG. 3 is a front view of the entirety of the present application;
FIG. 4 is a partial cross-sectional view of the first embodiment of the present invention;
FIG. 5 is a schematic sectional view of a portion of a connecting head and a delivery pipe according to the present application;
fig. 6 is a schematic perspective view of a connector according to the present application;
fig. 7 is a front view of the connection head of the present application;
fig. 8 is a first schematic sectional view of a connector according to the present application;
fig. 9 is a schematic sectional view of a connecting head of the present application;
FIG. 10 is a perspective view of the transmission assembly and baffle of the present application;
FIG. 11 is a perspective view of the slider and telescoping rod of the present application;
FIG. 12 is a perspective view of the ring baffle of the present application;
FIG. 13 is an enlarged view at A of FIG. 10 of the present application;
FIG. 14 is a schematic cross-sectional view of the delivery device of the present application;
the reference numbers in the figures are:
1-a conveying device; 1 a-a second rotary drive motor; 1 b-a rotating shaft; 1b 1-helical leaf; 1 c-a feeding cavity;
2-a sedimentation tank; 2 a-a slurry pump; 2 b-a first conduit; 2b 1-a second conduit;
3-a connector; 3 a-an upper connecting part; 3a 1-a mount; 3a 2-a fixed ring; 3a 3-first return channel; 3a 4-installation cavity; 3a 5-chute; 3 b-lower connecting part; 3b 1-a second return channel; 3b 2-flow guide strips; 3b 3-slot;
4-an adjustment mechanism; 4 a-an annular baffle; 4a 1-a slider; 4 b-a drive assembly; 4b 1-a first lead screw; 4b2 — a first rotary drive motor; 4 c-a transmission assembly; 4c 1-a slider; 4c 2-a second lead screw; 4c 3-sliding bar; 4c 4-telescoping rod; 4c 5-a first bevel gear; 4c 6-second bevel gear; 4 d-a deflector;
5-conveying pipe; 5 a-an outer tube; 5 b-inner tube;
6-a drill bit; 6 a-a flow channel; 6 b-a drill rod.
Detailed Description
For further understanding of the features and technical means of the present invention, as well as the specific objects and functions attained by the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.
As shown in fig. 1-14, the present application provides:
a slurry conveying device for oil exploitation comprises a conveying device 1 and a sedimentation tank 2 arranged beside the conveying device 1, wherein the conveying device 1 is further provided with a connector 3 and two conveying pipes 5, each conveying pipe 5 is divided into an inner pipe 5b and an outer pipe 5a, the two conveying pipes 5 are both positioned in a vertical state and are coaxially positioned in an oil exploitation well, the connector 3 is positioned at the joint of the two conveying pipes 5, the connector 3 comprises an upper connecting part 3a, a lower connecting part 3b and an adjusting mechanism 4, the upper connecting part 3a is of a hollow cylindrical structure, the upper connecting part 3a is sleeved on the outer pipe 5a of the conveying pipe 5, the center of the upper connecting part 3a is provided with a fixing frame 3a1, the center of the fixing frame 3a1 is provided with a fixing ring 3a2, the fixing ring 3a2 is sleeved on the inner pipe 5b of the conveying pipe 5, the lower connecting part 3b is of a hollow conical structure, and the area of the top end of the lower connecting part 3b is smaller than that of the bottom end of the lower connecting part, the top end of the lower connecting part 3b is fixedly connected to the fixed frame 3a1, the inner wall of the lower connecting part 3b and the outer wall of the inner tube 5b form a first backflow channel 3a3, the inner wall of the upper connecting part 3a on the outer wall of the lower connecting part 3b forms a second backflow channel 3b1, the adjusting mechanism 4 is positioned between the upper connecting part 3a and the lower connecting part 3b, the adjusting mechanism 4 comprises an annular baffle 4a, a driving component 4b, a transmission component 4c and a plurality of guide plates 4d, the annular baffle 4a is sleeved at the bottom end of the upper connecting part 3a, the annular baffle 4a is in sliding fit with the upper connecting part 3a, the driving component 4b is positioned at the top end of the upper connecting part 3a, the annular baffle 4a is in transmission connection with the driving component 4b, the plurality of guide plates 4d are arranged around the axis of the connector 3 at equal intervals, the transmission component 4c is positioned above the guide plates 4d, a plurality of slide blocks 4c1 are arranged on the transmission component 4c, and all the slide blocks 4c1 can slide along the radial direction of the connector 3, the number of the sliding blocks 4c1 corresponds to the number of the guide plates 4d one by one, the tops of all the guide plates 4d are hinged to all the sliding blocks 4c1 respectively, the bottoms of all the guide plates 4d are hinged to the bottom of the inner wall of the upper connecting part 3a, and one sliding block 4c1 is in transmission connection with the driving assembly 4 b.
Based on the above embodiments, the technical problem that the present application intends to solve is how to ensure the backflow of the slurry and prevent the slurry from being stuck on the backflow path by active adjustment.
For this reason, the top of outer tube 5a of conveyer pipe 5 of this application is connected with sedimentation tank 2, the top of outer tube 5a is connected with drill bit 6, the top of inner tube 5b is connected with conveyor 1, the bottom of inner tube 5b is connected with drill bit 6, drilling rod 6b is located the center of inner tube 5b, inner tube 5b communicates with runner 6a on the drill bit 6, conveyer pipe 5 has at least two, the quantity of conveyer pipe 5 increases along with the distance of tunnelling, the quantity of connector 3 and conveyer pipe 5 are matchd each other, connector 3 is used for linking two adjacent conveyer pipes 5.
Firstly, slurry is fed into the inner pipe 5b of the conveying pipe 5 through the conveying device 1, the slurry flows towards the drill bit 6 along the inner pipe 5b, and the slurry is sprayed out through the flow channel 6a on the drill bit 6 in the tunneling process, so that the temperature of the drill bit 6 is reduced and the drill bit 6 is lubricated through the slurry.
Under the effect of mud pressure, mud can carry the piece in the exploitation to remove to the wellhead along the axis of well, because the inner wall of well is not level and smooth enough, so flow is slow, the card can cause the card to die simultaneously, through the setting of second return channel 3b1 this moment for mud can flow into between outer tube 5a and the inner tube 5b at the in-process of backward flow, makes mud can follow the passageway flow between outer tube 5a and the inner tube 5b, thereby plays the pressure of balanced mud backward flow.
If the second backflow channel 3b1 is jammed, the driving assembly 4b is started at this time, the driving assembly 4b drives the annular baffle 4a, so that the annular baffle 4a moves along the axis of the connector 3, the second backflow channel 3b1 is blocked by the annular baffle 4a, mud cannot flow back into the second backflow channel 3b1, and further jamming of the second backflow channel 3b1 is avoided, the delivery pipe 5 is long, and therefore the plurality of connectors 3 are provided, jamming of the second backflow channel 3b1 on one connector 3 cannot affect upward backflow of the mud, the mud can flow into the space between the outer pipe 5a and the inner pipe 5b through the second backflow channel 3b1 on the connector 3, the driving assembly 4b starts while driving the slider 4c1 to move, the slider 4c1 moves to drive all the hinged deflectors 4d, the bottom of the outer pipe 4d is hinged to the bottom of the inner part of the outer pipe 5a, the slider 4c1 moves to make the tops of all the sliders 4d move towards the side wall of the delivery pipe 5, thereby swinging the inner wall of the outer pipe 5a to swing the outer pipe 5b along the side of the inner wall of the inner pipe 5b, and the second backflow channel 3b continues to push the second backflow channel 3b to flow back to the mud to the backflow channel 3b, and to flow back to the upper backflow channel 3b, and the mud flow back to the lower flow channel 3b, and the upper portion of the flow channel 3b, and the flow channel 4 b.
After the mediation, annular baffle 4a is opened to rethread drive assembly 4b for annular baffle 4a resets, drives the inner wall laminating of the last connecting portion 3a of guide plate 4d and connector 3 simultaneously, thereby makes in mud can the reentrant second return channel 3b1, thereby can continue to flow back through second return channel 3b1.
Through the setting of adjustment mechanism 4 for when the second return flow channel 3b1 is passive guide mud backward flow, the route of the backward flow of accessible ring baffle 4a and guide plate 4d can active control mud, thereby play the purpose of dredging second return flow channel 3b1, also can adjust the pressure of the mud that is located the well simultaneously according to this mode, thereby promote the speed of the backward flow of mud.
And finally, the mud returning to the ground is introduced into the sedimentation tank 2, and is introduced into the conveying device 1 after the analysis of the mud by workers and the sedimentation of the sedimentation tank 2, so that the whole circulation is completed.
As shown in fig. 9, 10 and 12, further:
go up connecting portion 3 a's inside setting and the installation cavity 3a4 that the annular baffle 4a matches each other, be provided with the spout 3a5 that a plurality of equidistance set up around last connecting portion 3a axis in installation cavity 3a4, be provided with the draw runner 4a1 that matches each other with spout 3a5 on the annular baffle 4 a.
Based on the above-described embodiment, the technical problem that the present application intends to solve is how to slidingly fit the annular flap 4a with the upper connecting portion 3 a. For this reason, this application provides the gliding accommodation space of ring baffle 4a through the setting of installation cavity 3a4, through the setting of spout 3a5 and draw runner 4a1 for ring baffle 4a can slide along the spout 3a5 of installation cavity 3a4, thereby plugs up second return passage 3b1 through ring baffle 4a, prevents that further stifled second return passage 3b1 of mud backward flow.
As shown in fig. 8-10 and 13, further:
the driving assembly 4b comprises a first screw rod 4b1 and a first rotary driving motor 4b2, the first screw rod 4b1 is located inside the installation cavity 3a4 in a vertical state, the first screw rod 4b1 penetrates through one of the sliding strips 4a1 of the annular baffle 4a, the first screw rod 4b1 is in threaded fit with the sliding strip 4a1, the first rotary driving motor 4b2 is located at the top end of the upper connecting portion 3a, and the first rotary driving motor 4b2 penetrates through the top of the upper connecting portion 3a and is fixedly connected with the first screw rod 4b 1.
Based on the above embodiments, the technical problem to be solved by the present application is how the driving assembly 4b drives the annular baffle 4a to move in the installation cavity 3a 4. For this reason, this application is through starting first rotary driving motor 4b2, the output shaft of first rotary driving motor 4b2 has driven the rotation rather than first lead screw 4b1 of fixed connection, the rotation of first lead screw 4b1 has driven the removal rather than screw-thread fit's ring baffle 4a, make ring baffle 4a move along the direction of spout 3a5, thereby make ring baffle 4a move in installation cavity 3a4, thereby block second return flow path 3b1, prevent that mud backflow from further blocking up second return flow path 3b1.
As shown in fig. 8-10 and 13, further:
the guide plate 4d is of a telescopic structure, the transmission assembly 4c further comprises a second lead screw 4c2, a plurality of sliding rods 4c3 and a plurality of arc-shaped telescopic rods 4c4, the sum of the number of the second lead screw 4c2 and all the sliding rods 4c3 is equal to the number of the guide plates 4d, the second lead screw 4c2 and all the sliding rods 4c3 extend along the radial direction of the upper connecting part 3a in a horizontal state, the second lead screw 4c2 and all the sliding rods 4c3 are arranged around the axis of the upper connecting part 3a at equal intervals, all the sliding blocks 4c1 are respectively sleeved on the second lead screw 4c2 and all the sliding rods 4c3, wherein the sliding blocks 4c1 on the second lead screw 4c2 are matched with the threads of the second lead screw 4c2, all the telescopic rods 4c4 are respectively located between two adjacent sliding blocks 4c1, and the second lead screw 4c2 is in transmission connection with the driving assembly 4 b.
Based on the above embodiments, the technical problem to be solved by the present application is how the transmission assembly 4c drives all the baffles 4d to move together. Therefore, the driving assembly 4b drives the second lead screw 4c2 to rotate, the second lead screw 4c2 drives the slider 4c1 in threaded fit with the second lead screw to move, the slider 4c1 moves along the axis of the second lead screw 4c2, due to the fact that the telescopic rod 4c4 is arranged between every two adjacent sliders 4c1 and the telescopic rod 4c4 is of an arc-shaped structure, the slider 4c1 sleeved on the second lead screw 4c2 moves along the axis of the slider 4c1 driven by the telescopic rod 4c4, the slider 4c1 on the slider 4c3 moves along the axis of the slider 4c3, the telescopic rod 4c4 is of a telescopic structure and the arc-shaped structure, when the slider 4c1 moves towards the axis of the connector 3, the distance between the two matched sliders 4c1 can be better, meanwhile, the sliders 4c1 can be kept to move together, and all the deflectors 4d can be kept to move together, and therefore mud in the 5a and the inner pipe 5b can be guided to reversely scour the second backflow channel 3b through the deflectors.
As shown in fig. 13, further:
the transmission assembly 4c further comprises a first helical gear 4c5 and a second helical gear 4c6, the first helical gear 4c5 is sleeved at the middle part of the first screw rod 4b1, the second helical gear 4c6 is sleeved at one end, far away from the fixing frame 3a1, of the second screw rod 4c2, and the first helical gear 4c5 is meshed with the second helical gear 4c 6.
Based on the above embodiments, the technical problem to be solved by the present application is how to drive the driving assembly 4b to rotate the second lead screw 4c 2. For this reason, this application is through the setting of first helical gear 4c5 and second helical gear 4c6 for drive assembly 4b can drive the removal of guide plate 4d when driving ring baffle 4a, thereby can be better the flow of guide mud, conveniently carry out the backwash through mud to second return channel 3b1, prevent the card of mud and die.
As shown in fig. 7, further:
the outside of lower connecting portion 3b is provided with a plurality of water conservancy diversion strip 3b2, and all water conservancy diversion strips 3b2 all encircle in the axis distribution of lower connecting portion 3b along the equidistance.
Based on the above embodiment, the technical problem that the present application intends to solve is how to better guide the slurry to move toward the second return channel 3b1. Therefore, the flow guide strips 3b2 are arranged, so that when slurry surges upwards, the slurry can better move towards the second backflow channel 3b1 along the direction of the flow guide strips 3b2, and the flow guide strips 3b2 are preferably arranged in an S shape, so that the flow velocity of the slurry can be improved, and the slurry can better pass through the second backflow channel 3b1.
As shown in fig. 9, further:
the bottom of the lower connecting part 3b is provided with a slot 3b3 matched with the annular baffle 4 a.
Based on the above-described embodiments, the technical problem that the present application intends to solve is how to improve the sealability of the annular baffle 4a shielding the second return channel 3b1. For this reason, this application passes through slot 3b 3's setting, when making ring baffle 4a slide down along the axis of last connecting portion 3a, can insert slot 3b 3's inside, thereby avoid mud to flow in second return channel 3b1, the improvement shelters from second return channel 3b 1's leakproofness, in order to avoid mud to get into second return channel 3b1, prevent further in the second return channel 3b1 by the grit card die, improve adjustment mechanism 4 mediation second return channel 3b 1's possibility.
As shown in fig. 9, further:
the bottoms of the upper connecting part 3a and the lower connecting part 3b are both arc-shaped structures.
Based on the above embodiments, the technical problem to be solved by the present application is how to improve the permeability of the slurry flow. For this reason, this application is the setting of arc angle structure through the bottom of last connecting portion 3a and lower connecting portion 3b for when mud passes through along last connecting portion 3a and lower connecting portion 3b, be difficult for on glutinous and the last connecting portion 3a and the lower connecting portion 3b, improve the trafficability characteristic of mud.
As shown in fig. 14, further:
Based on the above-mentioned embodiments, the technical problem that the present application intends to solve is how the conveying device 1 conveys slurry into the conveying pipe 5. For this reason, this application lets in the pay-off chamber 1c through depositing good mud in 2 sedimentation tanks from the feed inlet in, has driven rather than fixed connection's rotation axis 1b through second rotary driving motor 1 a's output shaft, and rotation of rotation axis 1b has driven the helical blade 1b1 rather than being connected, drives mud through helical blade 1b1 and removes, and until mud is left from the discharge gate, flow in the inner tube 5b of conveyer pipe 5 at last to the completion is to the transport of mud.
As shown in fig. 1-3, further:
a mud pump 2a is arranged beside the sedimentation tank 2, a first pipeline 2b and a second pipeline 2b1 are arranged on the mud pump 2a, the first pipeline 2b is connected with an outer pipe 5a of the conveying pipe 5, one end of the second pipeline 2b1 is connected with a well for oil exploitation, and the other end of the second pipeline 2b1 is connected with the first pipeline 2 b.
The above examples only show one or more embodiments of the present invention, and the description is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the invention, and these changes and modifications are all within the scope of the invention. Therefore, the protection scope of the present patent should be subject to the appended claims.
Claims (4)
1. The mud conveying equipment for oil exploitation comprises a conveying device (1) and a sedimentation tank (2) arranged beside the conveying device (1), and is characterized in that a connector (3) and two conveying pipes (5) are further arranged on the conveying device (1), each conveying pipe (5) is divided into an inner pipe (5 b) and an outer pipe (5 a), the two conveying pipes (5) are both in a vertical state and coaxially located in a well for oil exploitation, the connector (3) is located at the joint of the two conveying pipes (5), the connector (3) comprises an upper connecting part (3 a), a lower connecting part (3 b) and an adjusting mechanism (4), the upper connecting part (3 a) is of a hollow cylindrical structure, the upper connecting part (3 a) is sleeved on the outer pipe (5 a) of the conveying pipe (5), a fixing frame (3 a 1) is arranged in the center of the upper connecting part (3 a), a fixing ring (3 a 2) is arranged in the center of the fixing frame (3 a 1), the conveying ring (3 a 2) is sleeved on the inner pipe (5 b) of the conveying pipe (5), the lower connecting part (3 b) is of the hollow cylindrical structure, the upper connecting part (3 b), the lower connecting part (3 b) is connected to the top end of the fixing frame (3 b), and the upper connecting part (3 b) is smaller than the area of the top of the lower connecting part (3 b), the first connecting part (3 b), the inner wall of the upper connecting part (3 a) on the outer wall of the lower connecting part (3 b) forms a second backflow channel (3 b 1), the adjusting mechanism (4) is positioned between the upper connecting part (3 a) and the lower connecting part (3 b), the adjusting mechanism (4) comprises an annular baffle plate (4 a), a driving assembly (4 b), a transmission assembly (4 c) and a plurality of guide plates (4 d), the annular baffle plate (4 a) is sleeved at the bottom end of the upper connecting part (3 a), the annular baffle (4 a) is in sliding fit with the upper connecting part (3 a), the driving assembly (4 b) is positioned at the top end of the upper connecting part (3 a), the annular baffle (4 a) is in transmission connection with the driving assembly (4 b), a plurality of guide plates (4 d) are arranged around the axis of the connector (3) at equal intervals, the driving assembly (4 c) is positioned above the guide plates (4 d), a plurality of sliding blocks (4 c 1) are arranged on the driving assembly (4 c), all the sliding blocks (4 c 1) can slide and move along the radial direction of the connector (3), the number of the sliding blocks (4 c 1) corresponds to that of the guide plates (4 d), the tops of all the guide plates (4 d) are respectively hinged with all the sliding blocks (4 c 1), the bottoms of all the guide plates (4 d) are hinged with the bottom of the inner wall of the upper connecting part (3 a), one of the sliding blocks (4 c 1) is in transmission connection with the driving component (4 b);
the inner part of the upper connecting part (3 a) is provided with a mounting cavity (3 a 4) matched with the annular baffle (4 a), a plurality of sliding chutes (3 a 5) arranged around the axis of the upper connecting part (3 a) at equal intervals are arranged in the mounting cavity (3 a 4), and the annular baffle (4 a) is provided with sliding strips (4 a 1) matched with the sliding chutes (3 a 5);
a plurality of guide strips (3 b 2) are arranged on the outer side of the lower connecting part (3 b), and all the guide strips (3 b 2) are distributed around the axis of the lower connecting part (3 b) at equal intervals;
the bottom of the lower connecting part (3 b) is provided with a slot (3 b 3) matched with the annular baffle (4 a);
the driving assembly (4 b) comprises a first screw rod (4 b 1) and a first rotary driving motor (4 b 2), the first screw rod (4 b 1) is located inside the installation cavity (3 a 4) in a vertical state, the first screw rod (4 b 1) penetrates through one of the sliding strips (4 a 1) of the annular baffle (4 a), the first screw rod (4 b 1) is in threaded fit with the sliding strip (4 a 1), the first rotary driving motor (4 b 2) is located at the top end of the upper connecting portion (3 a), and the first rotary driving motor (4 b 2) penetrates through the top of the upper connecting portion (3 a) and is fixedly connected with the first screw rod (4 b 1);
the guide plate (4 d) is of a telescopic structure, the transmission assembly (4 c) further comprises a second screw rod (4 c 2), a plurality of sliding rods (4 c 3) and a plurality of arc-shaped telescopic rods (4 c 4), the sum of the number of the second screw rod (4 c 2) and all the sliding rods (4 c 3) is equal to the number of the guide plate (4 d), the second screw rod (4 c 2) and all the sliding rods (4 c 3) extend along the radial direction of the upper connecting part (3 a) in a horizontal state, the second screw rod (4 c 2) and all the sliding rods (4 c 3) are arranged around the axis of the upper connecting part (3 a) at equal intervals, all the sliding blocks (4 c 1) are respectively sleeved on the second screw rod (4 c 2) and all the sliding rods (4 c 3), the sliding blocks (4 c 1) positioned on the second screw rod (4 c 2) are matched with the threads of the second screw rod (4 c 2), all the telescopic rods (4 c 4) are respectively positioned between two adjacent sliding blocks (4 c 1), and the second screw rod (4 c 2) is connected with the transmission assembly (4 b);
the transmission assembly (4 c) further comprises a first helical gear (4 c 5) and a second helical gear (4 c 6), the first helical gear (4 c 5) is sleeved in the middle of the first screw rod (4 b 1), the second helical gear (4 c 6) is sleeved on one end, far away from the fixing frame (3 a 1), of the second screw rod (4 c 2), and the first helical gear (4 c 5) is in meshed connection with the second helical gear (4 c 6).
2. The slurry conveying equipment for oil exploitation according to claim 1, wherein the bottoms of the upper connecting part (3 a) and the lower connecting part (3 b) are both in a circular arc angle structure.
3. The slurry conveying equipment for oil exploitation according to claim 1, wherein the conveying device (1) comprises a second rotary driving motor (1 a), a spiral blade (1 b 1), a rotating shaft (1 b) and a conveying cavity (1 c), the conveying cavity (1 c) is of a cylindrical structure, the conveying cavity (1 c) is placed in a horizontal state, the rotating shaft (1 b) is rotatably located inside the conveying cavity (1 c) in the horizontal state, the spiral blade (1 b 1) is sleeved on the rotating shaft (1 b), the second rotary driving motor (1 a) is located on the outer wall of one end of the conveying cavity (1 c), the second rotary driving motor (1 a) penetrates through the outer wall of the conveying cavity (1 c) and is fixedly connected with the rotating shaft (1 b), the conveying cavity (1 c) is provided with a discharge port and a feed inlet, the discharge port is connected with the inner pipe (5 b) of the conveying pipe (5), and the discharge port is connected with the sedimentation tank (2).
4. The mud conveying apparatus for oil exploitation according to claim 1, wherein a mud pump (2 a) is disposed beside the sedimentation tank (2), a first pipe (2 b) and a second pipe (2 b 1) are disposed on the mud pump (2 a), the first pipe (2 b) is connected to an outer pipe (5 a) of the conveying pipe (5), one end of the second pipe (2 b 1) is connected to a well for oil exploitation, and the other end of the second pipe (2 b 1) is connected to the first pipe (2 b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211091697.9A CN115182691B (en) | 2022-09-07 | 2022-09-07 | Slurry conveying equipment for oil exploitation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211091697.9A CN115182691B (en) | 2022-09-07 | 2022-09-07 | Slurry conveying equipment for oil exploitation |
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| Publication Number | Publication Date |
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| CN115182691A CN115182691A (en) | 2022-10-14 |
| CN115182691B true CN115182691B (en) | 2022-12-20 |
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| CN202211091697.9A Expired - Fee Related CN115182691B (en) | 2022-09-07 | 2022-09-07 | Slurry conveying equipment for oil exploitation |
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| CN2047298U (en) * | 1989-04-17 | 1989-11-08 | 牡丹江市新荣石油机械厂 | Under-ground blocking preventive by-passs circulating joint |
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| CN107939318A (en) * | 2017-11-30 | 2018-04-20 | 中国石油大学(北京) | Local under balance pressure drilling reflux |
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| CN208220665U (en) * | 2018-03-27 | 2018-12-11 | 北京首创热力股份有限公司 | A kind of multi-cycle runner well system for big size hole hard rock drilling well |
| CN208790503U (en) * | 2018-07-23 | 2019-04-26 | 曹倩倩 | A kind of oil exploitation slurry transportation device |
| CN212789939U (en) * | 2020-06-24 | 2021-03-26 | 四川凯景环保科技有限责任公司 | High-efficient splitter of drilling mud |
| CN113605846A (en) * | 2021-08-13 | 2021-11-05 | 陆成 | Drilling drill rod for oil exploitation |
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2022
- 2022-09-07 CN CN202211091697.9A patent/CN115182691B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2047298U (en) * | 1989-04-17 | 1989-11-08 | 牡丹江市新荣石油机械厂 | Under-ground blocking preventive by-passs circulating joint |
| CN104863503A (en) * | 2015-05-06 | 2015-08-26 | 中国石油大学(北京) | Anti-jamming drilling device based on double-wall drilling rod and downhole power drilling tool |
| CN107939318A (en) * | 2017-11-30 | 2018-04-20 | 中国石油大学(北京) | Local under balance pressure drilling reflux |
| CN208220665U (en) * | 2018-03-27 | 2018-12-11 | 北京首创热力股份有限公司 | A kind of multi-cycle runner well system for big size hole hard rock drilling well |
| CN208152959U (en) * | 2018-05-14 | 2018-11-27 | 北京首创热力股份有限公司 | A kind of mixed gas connector of multi-cycle runner drilling tool |
| CN208790503U (en) * | 2018-07-23 | 2019-04-26 | 曹倩倩 | A kind of oil exploitation slurry transportation device |
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| CN113605846A (en) * | 2021-08-13 | 2021-11-05 | 陆成 | Drilling drill rod for oil exploitation |
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| CN115182691A (en) | 2022-10-14 |
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