CN107377201A - A kind of perforation returns sediment outflow retracting device and method - Google Patents
A kind of perforation returns sediment outflow retracting device and method Download PDFInfo
- Publication number
- CN107377201A CN107377201A CN201710768106.XA CN201710768106A CN107377201A CN 107377201 A CN107377201 A CN 107377201A CN 201710768106 A CN201710768106 A CN 201710768106A CN 107377201 A CN107377201 A CN 107377201A
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- perforation
- sand
- sediment outflow
- gas
- hydrocyclone
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- 239000013049 sediment Substances 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000004576 sand Substances 0.000 claims abstract description 71
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 55
- 239000000428 dust Substances 0.000 claims abstract description 40
- 238000001035 drying Methods 0.000 claims abstract description 26
- 238000001179 sorption measurement Methods 0.000 claims abstract description 26
- 238000010438 heat treatment Methods 0.000 claims abstract description 22
- 238000007599 discharging Methods 0.000 claims abstract description 7
- 238000004064 recycling Methods 0.000 claims abstract description 7
- 238000011084 recovery Methods 0.000 claims abstract description 5
- 238000010521 absorption reaction Methods 0.000 claims description 6
- 238000001556 precipitation Methods 0.000 claims description 6
- 239000010865 sewage Substances 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 230000001939 inductive effect Effects 0.000 claims 1
- 238000003466 welding Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 239000002910 solid waste Substances 0.000 abstract description 7
- 238000012216 screening Methods 0.000 abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 206010054949 Metaplasia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000015689 metaplastic ossification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
- B03B9/02—General arrangement of separating plant, e.g. flow sheets specially adapted for oil-sand, oil-chalk, oil-shales, ozokerite, bitumen, or the like
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Geology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Processing Of Solid Wastes (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention provides a kind of perforation to return sediment outflow retracting device and method, including hopper, rotary disc feeder, preceding conveying worm, heating furnace, the three gentle sand separators of drying oven being sequentially connected, in addition to hydrocyclone, water adsorption type dust catcher, rear screw conveyer and rotary screen；The top exit of gas sand separator is connected to the entrance of hydrocyclone, the air inlet of the outlet connection dampening adsorption type dust catcher of hydrocyclone；The outlet at bottom of gas sand separator is connected to the charging aperture of rear screw conveyer, the discharging opening slidable sieve charging aperture of rear screw conveyer.Perforation returns sediment outflow recovery method and realizes that perforation returns the sediment transport of sediment outflow, feeding, drying, dedusting, screening successively, and the sand filtered out is collected recycling, solves pollution problem of the perforation sand to environment, while saved cost.It is recyclable, environmental protection a production technology and process units and whole production process is arranged without waste liquid, solid waste beyond the region of objective existence.
Description
Technical field
The invention belongs to petroleum exploration and development engineering field, and in particular to and a kind of perforation returns sediment outflow retracting device and method,
For returning the recovery and recycling of sediment outflow to the perforation for returning out pit shaft.
Background technology
In petroleum exploration and development leads engineering field, as hydraulic jet perforation technique is in the popularization of horizontal well, well site heap
Product is largely because solid waste --- the perforation sand that abrasive perforating is returned out by pit shaft, traditional processing method are to fill out it on the spot
Bury, certain pollution is caused to environment, while form certain waste.The implementation of " Law on Environmental Protection " at present, environmental pollution
Higher requirement is proposed, is unfavorable for the production of pressure break cleaned in situ metaplasia, it is extremely urgent to the processing of returning the perforation sand ejected,
International oil price declines to a great extent simultaneously, and enterprise cost efficiency is badly in need of carrying out, so, perforation return sediment outflow recycling have it is important
Meaning.
The content of the invention
The purpose of the present invention is to overcome existing perforation to return sediment outflow to cause environmental pollution, the wasting of resources to be asked using landfill on the spot
Topic.
Therefore, the invention provides a kind of perforation to return sediment outflow retracting device, including hopper, the disk feeding being sequentially connected
Machine, preceding conveying worm, heating furnace, three gentle sand separators of drying oven, in addition to hydrocyclone, water absorption type dedusting
Device, rear screw conveyer and rotary screen；
The top exit of the gas sand separator is connected to the entrance of hydrocyclone, and the outlet connection dampening of hydrocyclone is inhaled
The air inlet of attached formula deduster；
The outlet at bottom of the gas sand separator is connected to the charging aperture of rear screw conveyer, and the discharging opening of rear screw conveyer is just
To rotary screen charging aperture.
Also include air blower, the air inlet of blower outlet face heating furnace.
Also include air-introduced machine, the gas outlet of water adsorption type dust catcher is connected to the air inlet of air-introduced machine.
The water adsorption type dust catcher is made up of air inlet pipe, water tank and escape pipe, and water tank is by high flush tank and low flush tank company
The L-shaped structure of logical composition, high flush tank and low flush tank connectivity part are provided with the dividing plate stretched into water, and air inlet pipe is inserted by high flush tank upper surface
Enter in water tank, escape pipe is welded on high flush tank side, and low flush tank upper surface is open, and the opening is sand removing hole, and water tank bottom opens up
There is sewage draining exit.
The hopper, rotary disc feeder, preceding conveying worm, air blower, heating furnace, three drying ovens, gas sand separator,
Hydrocyclone, water adsorption type dust catcher, air-introduced machine, rear screw conveyer and rotary screen equal skid are prized the bottom of at.
The preceding conveying worm is identical with rear screw conveyor construction, equal slant setting, and discharging opening is above feeding
Mouthful.
A kind of perforation returns sediment outflow recovery method, comprises the following steps：
Step 1, perforation is returned into sediment outflow with conveying worm and is delivered to hopper, the perforation in hopper returns sediment outflow and is discharged into disk feeding
Machine, rotary disc feeder return perforation before sediment outflow is transported in conveying worm, and perforation is returned sediment outflow lifting and arrived by preceding conveying worm
Heating furnace top, then three drying ovens are entered by heating furnace）Dried, the perforation after drying returns sediment outflow through gas sand separator
Carry out gas solid separation；
Step 2, the dry sand that perforation is returned in sediment outflow is flowed out by gas sand separator bottom, and is lifted and conveyed by rear screw conveyer
To rotary screen, rotary screen is sieved to dry sand, and the sand of 20~40 mesh screened out, 40~70 mesh is collected into repetition profit
With；
Step 3, the hot gas and dust for the carrying sand isolated enter hydrocyclone by being discharged at the top of gas sand separator,
Sand is spilt from hydrocyclone bottom, and hot gas and dust enter water adsorption type dust catcher by hydrocyclone sidewall exit, heat
Gas and dust are adsorbed with water the water absorption in formula deduster, are deposited in bottom after precipitation, air-introduced machine takes water absorption type dedusting away
Hot gas in device.
Beneficial effects of the present invention：
1st, traditional conveyer is conveyer belt, and angled conveyor is less than 30 degree, and volume is larger, is not easy to transport, and screw conveyer volume
Small, angled conveyor is put flexibly in the range of 0-90 degree, has saved the space of skid-mounted device, transfer efficiency is high, is easy to transport
It is defeated.
2nd, using water adsorption type dust catcher, hot gas carries dust and enters the rear face water surface, is adsorbed with water, accumulates after precipitation
In bottom, deposit cleaning is convenient.
3rd, can be by solid waste --- perforation sand, high-efficiency sieve select the stone for meeting YS/T5108-2014 professional standards
Sand.
4th, each functional unit（Collection, feeding, conveying, drying, dedusting, screening）Realize it is integrated, with production line side
Formula forms skid-mounted device, is readily transported, safety and environmental protection.
The present invention is described in further details below with reference to accompanying drawing.
Brief description of the drawings
Fig. 1 is the front view that perforation returns sediment outflow retracting device.
Fig. 2 is the top view that perforation returns sediment outflow retracting device.
Fig. 3 is the front view of water adsorption type dust catcher.
Fig. 4 is the top view of water adsorption type dust catcher.
Description of reference numerals：1st, bottom is prized；2nd, hopper；3rd, rotary disc feeder；4th, preceding conveying worm；5th, air blower；6th, add
Hot stove；7th, three drying ovens；8th, gas sand separator；9th, hydrocyclone；10th, water adsorption type dust catcher；11st, air-introduced machine；12nd, after
Conveying worm；13rd, rotary screen；
10.1, air inlet pipe；10.2, water tank；10.3, escape pipe；10.4, dividing plate；10.5, sewage draining exit；10.6, sand removing hole；10.7、
High flush tank；10.8, low flush tank.
Embodiment
Embodiment 1：
The problem of landfill causes environmental pollution, the wasting of resources on the spot is used in order to overcome existing perforation to return sediment outflow, the present embodiment carries
A kind of perforation as depicted in figs. 1 and 2 has been supplied to return sediment outflow retracting device, including the hopper 2, rotary disc feeder 3, preceding being sequentially connected
6, three conveying worm 4, heating furnace gentle sand separators 8 of drying oven 7, in addition to hydrocyclone 9, water adsorption type dust catcher
10th, rear screw conveyer 12 and rotary screen 13；The top exit of the gas sand separator 8 is connected to the entrance of hydrocyclone 9,
The air inlet 10.1 of the outlet connection dampening adsorption type dust catcher 10 of hydrocyclone 9；The outlet at bottom of the gas sand separator 8
The charging aperture of rear screw conveyer 12 is connected to, the discharging opening slidable of rear screw conveyer 12 sieves 13 charging apertures.
The course of work that perforation returns sediment outflow retracting device is as follows：
The damp sand that perforation is returned to row with external conveying worm is delivered in hopper 2, and preceding spiral transferring is distributed to through rotary disc feeder 3
Send the lifting of machine 4 to be pushed up to heating furnace 6, entered by the tip circle pipe of heating furnace 6 in three drying ovens 7, the sand after drying is through gas sand
Sieved after separator 8 by rear screw conveyer 12 into rotary screen 13；Hot gas is produced by heating furnace 6, through three drying
Stove 7 enters gas sand separator 8, enters back into hydrocyclone 9, a small amount of sand is spilt from the bottom of hydrocyclone 9, and gas enters back into
Water adsorption type dust catcher 10, hot gas carry dust and enter the rear face water surface, be adsorbed with water, be deposited in bottom after precipitation, deposits
Thing cleaning is convenient.
It should be noted that the present embodiment uses screw conveyer small volume, angled conveyor is in the range of 0-90 degree, pendulum
Put flexibly, saved the space of skid-mounted device, transfer efficiency is high, is readily transported.Rotary screen 13 is by the sand after drying, through difference
The screen cloth of mesh number classify filling, and screen cloth is from carefully to slightly totally three kinds, can screening out the sand of 3 kinds of different-diameter scopes, meet
YS/T5108-2014 professional standards, it can reuse, it is impossible to which the big particle diameter debris of screening is discharged from end.Three drying ovens 7
Built-in three layers of cylinder, damp sand come and go in stove and are rotationally advancing, and increasing stroke and drying time, exit sand can be rapidly achieved
Drying regime, the sand that three drying ovens 7 come out, through gas sand separator 8, sand leans on gravity, spilt from outlet at bottom, hot gas is taken
Band traces of sand and dust enter hydrocyclone 9 from top exit.
The present invention, in order to be recycled to the perforation sand for returning discharge, develops for cleaning pressing crack construction demand
Above perforation returns sediment outflow retracting device, and the perforation sand that ground is drained into returning is collected, dried, screening recycling, solves
Solid waste --- perforation sand, the problem of pollution to environment, while reused, saved cost.It is whole raw
Production process is arranged without waste liquid, solid waste beyond the region of objective existence, is recyclable, environmental protection a production technology, realizes apparatus of the present invention of the method
Be readily transported, it is green the characteristics of, be a sustainable circulation product line device.
Embodiment 2：
On the basis of embodiment 1, perforation, which returns sediment outflow retracting device, also includes air blower 5, the air outlet face heating furnace of air blower 5
6 air inlet.Air blower 5 is prosperous by the baked wheaten cake in heating furnace, and heating furnace 6 burns smokeless coal cinder, produces hot gas, is carried for follow-up drying
Supplying heat source.
Embodiment 3：
On the basis of embodiment 1, perforation, which returns sediment outflow retracting device, also includes air-introduced machine 11, the outlet of water adsorption type dust catcher 10
Mouth 10.3 is connected to the air inlet of air-introduced machine 11.Air-introduced machine 11 is whole air-channel system power source, ensures heat caused by heating furnace
Gas is discharged after the devices such as three drying ovens 7, gas sand separator 8, hydrocyclone 9, water adsorption type dust catcher 10.Gas enters
After water adsorption type dust catcher 10, discharged by air-introduced machine 11.
Embodiment 4：
On the basis of embodiment 1 or embodiment 3, as shown in Figure 3 and Figure 4, the water adsorption type dust catcher 10 is by air inlet pipe
10.1st, water tank 10.2 and escape pipe 10.3 form, and water tank 10.2 connects the L-shaped formed by high flush tank 10.7 with low flush tank 10.8
Structure, high flush tank 10.7 and the connectivity part of low flush tank 10.8 are provided with the dividing plate 10.4 stretched into water, and air inlet pipe 10.1 is by high flush tank
In 10.7 upper surfaces insertion water tank 10.2, escape pipe 10.3 is welded on the side of high flush tank 10.7, and the upper surface of low flush tank 10.8 is open,
The opening is sand removing hole 10.6, and the bottom of water tank 10.2 offers sewage draining exit 10.5.
Hot gas and dust enter water adsorption type dust catcher 10 by the sidewall exit of hydrocyclone 9, and hot gas and dust are inhaled by water
Water absorption in attached formula deduster 10, is deposited in bottom, air-introduced machine 11 takes the heat in water adsorption type dust catcher 10 away after precipitation
Gas.It should be noted that the role of dividing plate 10.4 is, the water in dividing plate 10.4, high flush tank 10.7 and high flush tank 10.7
The space of relative closure is formed, accordingly even when sand removing hole 10.6 is opening, still ensures that air-introduced machine 11 smoothly discharges escape pipe
10.3 hot gas.
Embodiment 5：
On the basis of embodiment 1 or embodiment 2 or embodiment 3, the hopper 2, rotary disc feeder 3, preceding conveying worm 4,
Air blower 5, heating furnace 6, three drying ovens 7, gas sand separator 8, hydrocyclone 9, water adsorption type dust catcher 10, air-introduced machines
11st, rear screw conveyer 12 and 13 equal skid of rotary screen are on bottom sled 1.
As depicted in figs. 1 and 2, skid on bottom sled 1, has saved skid to specific placement location in each part set by more than
The space of device, transfer efficiency is high, is readily transported.
Embodiment 6：
On the basis of embodiment 1, the preceding conveying worm 4 is identical with the structure of rear screw conveyer 12, equal slant setting, and
Discharging opening is above charging aperture.Traditional conveyer is conveyer belt, and angled conveyor is less than 30 degree, and volume is larger, is not easy to transport, and spiral shell
Sand deliverer small volume is revolved, angled conveyor is put flexibly in the range of 0-90 degree, has saved the space of skid-mounted device, conveying effect
Rate is high, is readily transported.
Embodiment 7：
A kind of perforation returns sediment outflow recovery method, comprises the following steps：
Step 1, perforation is returned into sediment outflow with conveying worm and is delivered to hopper 2, the perforation in hopper 2, which returns sediment outflow and is discharged into disk, feeds
Material machine 3, rotary disc feeder 3 return perforation before sediment outflow is transported in conveying worm 4, and perforation is returned sediment outflow by preceding conveying worm 4
The top of heating furnace 6 is lifted, then is dried by heating furnace 6 into three drying ovens 7, the perforation after drying returns sediment outflow through gas
Sand separator 8 carries out gas solid separation；
Step 2, perforation return dry sand in sediment outflow and flowed out by the bottom of gas sand separator 8, and are lifted by rear screw conveyer 12 defeated
Rotary screen 13 is delivered to, rotary screen 13 is sieved to dry sand, and the sand of 20~40 mesh screened out, 40~70 mesh is collected
Recycling；
Step 3, the hot gas and dust of the carrying sand isolated are discharged by the top of gas sand separator 8, and enter hydrocyclone
9, sand is spilt from the bottom of hydrocyclone 9, and hot gas and dust enter water adsorption type dust catcher by the sidewall exit of hydrocyclone 9
10, the water that hot gas and dust are adsorbed with water in formula deduster 10 adsorbs, and is deposited in bottom after precipitation, and air-introduced machine 11 takes water suction away
Hot gas in attached formula deduster 10.
Process above method realizes that perforation returns the sediment transport of sediment outflow, feeding, drying, dedusting, screening successively, 20 filtered out~
40 mesh, the sand of 40~70 mesh are collected recycling, solve solid waste --- perforation sand, pollution to environment
Problem, while reused, save cost.And whole production process is arranged without waste liquid, solid waste beyond the region of objective existence, being can
Circulation, the production technology of environmental protection, realizing apparatus of the present invention of the method has the characteristics of being readily transported, be green, and being can
The product line device of persistent loop.
It is exemplified as above be only to the present invention for example, do not form the limitation to protection scope of the present invention, it is all
It is to be belonged to the same or analogous design of the present invention within protection scope of the present invention.The portion that the present embodiment does not describe in detail
The well-known components and common structure or conventional means of part and the structure category industry, are not described one by one here.
Claims (7)
1. a kind of perforation returns sediment outflow retracting device, it is characterised in that：Including the hopper being sequentially connected（2）, rotary disc feeder（3）、
Preceding conveying worm（4）, heating furnace（6）, three tins drying ovens（7）Gentle sand separator（8）, in addition to hydrocyclone（9）, water
Adsorption type dust catcher（10）, rear screw conveyer（12）And rotary screen（13）；
The gas sand separator（8）Top exit be connected to hydrocyclone（9）Entrance, hydrocyclone（9）Outlet
Connect dampening adsorption type dust catcher（10）Air inlet（10.1）；
The gas sand separator（8）Outlet at bottom be connected to rear screw conveyer（12）Charging aperture, rear screw conveyer
（12）Discharging opening slidable sieve（13）Charging aperture.
2. perforation as claimed in claim 1 returns sediment outflow retracting device, it is characterised in that：Also include air blower（5）, air blower
（5）Air outlet face heating furnace（6）Air inlet.
3. perforation as claimed in claim 1 returns sediment outflow retracting device, it is characterised in that：Also include air-introduced machine（11）, water absorption
Formula deduster（10）Gas outlet（10.3）It is connected to air-introduced machine（11）Air inlet.
4. the perforation as described in claim 1 or 3 returns sediment outflow retracting device, it is characterised in that：The water adsorption type dust catcher
（10）By air inlet pipe（10.1）, water tank（10.2）And escape pipe（10.3）Composition, water tank（10.2）It is by high flush tank（10.7）With
Low flush tank（10.8）Connect the L-shaped structure of composition, high flush tank（10.7）And low flush tank（10.8）Connectivity part is provided with and stretched into water
Dividing plate（10.4）, air inlet pipe（10.1）By high flush tank（10.7）Water tank is inserted in upper surface（10.2）It is interior, escape pipe（10.3）Welding
In high flush tank（10.7）Side, low flush tank（10.8）Upper surface is open, and the opening is sand removing hole（10.6）, water tank（10.2）Bottom
Offer sewage draining exit（10.5）.
5. the perforation as described in claim 1 or 2 or 3 returns sediment outflow retracting device, it is characterised in that：The hopper（2）, disk feed
Material machine（3）, preceding conveying worm（4）, air blower（5）, heating furnace（6）, three tins drying ovens（7）, gas sand separator（8）, eddy flow
Desander（9）, water adsorption type dust catcher（10）, air-introduced machine（11）, rear screw conveyer（12）And rotary screen（13）Equal skid exists
Prize at bottom（1）On.
6. perforation as claimed in claim 1 returns sediment outflow retracting device, it is characterised in that：The preceding conveying worm（4）With it is rear
Conveying worm（12）Structure is identical, equal slant setting, and discharging opening is above charging aperture.
7. a kind of perforation as described in any claim in claim 1~6 returns sediment outflow recovery method, it is characterised in that bag
Include following steps：
Step 1, perforation is returned into sediment outflow with conveying worm and is delivered to hopper（2）, hopper（2）Interior perforation returns sediment outflow and is discharged into circle
Disk feeding machine（3）, rotary disc feeder（3）Perforation is returned into sediment outflow and is transported to preceding conveying worm（4）In, preceding conveying worm（4）
Perforation is returned into sediment outflow lifting and arrives heating furnace（6）Top, then pass through heating furnace（6）Into three drying ovens（7）Dried, dried
Perforation afterwards returns sediment outflow through gas sand separator（8）Carry out gas solid separation；
Step 2, perforation return dry sand in sediment outflow by gas sand separator（8）Bottom is flowed out, and passes through rear screw conveyer（12）Carry
Rise and be delivered to rotary screen（13）, rotary screen（13）Dry sand is sieved, by 20~40 mesh screened out, the sand of 40~70 mesh
It is collected recycling；
Step 3, the hot gas and dust for the carrying sand isolated are by gas sand separator（8）Top is discharged, and enters Swirling flow sand-removing
Device（9）, sand is from hydrocyclone（9）Bottom is spilt, and hot gas and dust are by hydrocyclone（9）Sidewall exit adsorbs into water
Formula deduster（10）, hot gas and dust are adsorbed with water formula deduster（10）Interior water absorption, is deposited in bottom, air inducing after precipitation
Machine（11）Take water adsorption type dust catcher away（10）Interior hot gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710768106.XA CN107377201B (en) | 2017-08-31 | 2017-08-31 | A kind of perforation returns sediment outflow recyclable device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710768106.XA CN107377201B (en) | 2017-08-31 | 2017-08-31 | A kind of perforation returns sediment outflow recyclable device and method |
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| CN107377201A true CN107377201A (en) | 2017-11-24 |
| CN107377201B CN107377201B (en) | 2019-06-04 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107953562A (en) * | 2017-12-21 | 2018-04-24 | 广州市爱司凯科技股份有限公司 | Blanking drawing mechanism based on 3D printer |
| WO2021012831A1 (en) * | 2019-07-25 | 2021-01-28 | 四川宏华石油设备有限公司 | Automatic sand conveying system |
| CN113103153A (en) * | 2021-04-07 | 2021-07-13 | 江西东方昊为科技股份有限公司 | Effectual sandblast room removes ash |
| CN114812183A (en) * | 2022-04-22 | 2022-07-29 | 驻马店市新创业管桩附件有限公司 | Precoated sand regenerating furnace capable of utilizing heat |
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Effective date of registration: 20211018 Address after: 100007 Oil Mansion, 9 North Avenue, Dongcheng District, Beijing, Dongzhimen Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC CHUANQING DRILLING ENGINEERING Co.,Ltd. Address before: 710018 room 1207, Changqing building, Changqing Xing Long Yuan District, Xi'an, Shaanxi Patentee before: CHINA NATIONAL PETROLEUM CORPORATION CHUANQING DRILLING ENGINEERING COMPANY LIMITED CHANGQING DOWNHOLE TECHNOLOGY Co. |