CN115163007B - Integrated well wall repairing device and well wall water permeability repairing method - Google Patents
Integrated well wall repairing device and well wall water permeability repairing method Download PDFInfo
- Publication number
- CN115163007B CN115163007B CN202210829114.1A CN202210829114A CN115163007B CN 115163007 B CN115163007 B CN 115163007B CN 202210829114 A CN202210829114 A CN 202210829114A CN 115163007 B CN115163007 B CN 115163007B
- Authority
- CN
- China
- Prior art keywords
- repairing
- working rod
- well wall
- fixed arm
- telescopic arm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000035699 permeability Effects 0.000 title claims description 9
- 238000004140 cleaning Methods 0.000 claims abstract description 15
- 230000008439 repair process Effects 0.000 claims abstract description 12
- 238000005520 cutting process Methods 0.000 claims abstract description 10
- 230000000903 blocking effect Effects 0.000 claims abstract description 4
- 230000008569 process Effects 0.000 claims description 10
- 230000007246 mechanism Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 206010028980 Neoplasm Diseases 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000005086 pumping Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- -1 iron ions Chemical class 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007789 sealing Methods 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
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
- E21B37/02—Scrapers specially adapted therefor
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses an integrated well wall repairing device, which comprises a working rod, wherein at least one following repairing unit is arranged on the working rod, and the repairing unit comprises: the locking piece is sleeved on the working rod and fixedly connected with the working rod; the sliding piece is arranged below the locking piece and is connected with the working rod in a sliding way, and the sliding piece is provided with a horizontal water blocking surface; the repairing cutters are positioned at the outer side of the working rod and are arranged at intervals along the circumferential direction, and the repairing cutters are arc-surface structures with cutting edges arranged on the lower end face; a fixed arm disposed between the locking member and each of the repair blades; the telescopic arm is correspondingly arranged below the fixed arm and is respectively hinged with the sliding part and the repairing knife. The invention also discloses a well wall water permeable repairing method using the device, which skillfully utilizes the water body resistance to automatically adjust the position of the repairing blade opening, and can repeatedly clean the well wall dirt and has good cleaning effect on stubborn dirt by moving the working rod up and down.
Description
Technical Field
The invention relates to the technical field of cleaning of inner walls of wells, in particular to an integrated well wall repairing device and a well wall water permeability repairing method.
Background
When the well is completed, the well pipe is generally made of steel pipes or cast iron pipes as a filtering framework, and in the long-time pumping operation process, underground water enters the well after passing through the filtering framework, wherein the underground water contains higher calcium, magnesium, chloride ions, sulfate ions and the like, the pressure change of the underground water is combined with air contact and iron ions and the like in the steel pipes after entering the filtering framework, and gradually forms plaque or tumor-shaped objects on the inner wall of the well pipe, and the plaque or tumor-shaped objects are adhered with the well pipe for a long time, have certain adhesive strength and block water inlets on the wall of the well pipe. In order to prolong or regenerate the function or function of the pumping well, the well wall scale can be cleaned and removed, and the water permeability of the well wall pipe is recovered. Because its scale thing tumour is in the same place with the corrosion of wall of a well steel pipe, has certain intensity, and the well space is narrow and small, adopts the air compressor machine to blow and washes or other instrument wells to clear up inconvenient, inefficiency, effect are not good.
Disclosure of Invention
In order to solve the problems, the invention provides an integrated well wall repairing device and a well wall water permeability repairing method, which concretely adopts the following technical scheme:
the invention relates to an integrated well wall repairing device, which comprises a working rod, wherein at least one repairing unit is arranged on the working rod, and each repairing unit comprises:
the locking piece is sleeved on the working rod and fixedly connected with the working rod;
the sliding piece is arranged below the locking piece, is connected with the working rod in a sliding manner, and is provided with a horizontal water blocking surface;
the repairing cutters are arranged at the outer side of the working rod and are arranged at intervals along the circumferential direction, the repairing cutters are of cambered surface structures matched with the well wall, and the cutting edges of the repairing cutters are arranged on the lower end face;
the fixed arm is arranged between the locking piece and each repair knife, one end of the fixed arm is fixedly connected with the locking piece, and the other end of the fixed arm is hinged with the repair knife;
the telescopic arm is correspondingly arranged below the fixed arm, one end of the telescopic arm is hinged with the sliding part, and the other end of the telescopic arm is hinged with the repairing knife.
Further, a limiting piece which is positioned above the fixed arm and is in a horizontal state is arranged on the locking piece.
The fixed arm comprises a fixed section and an extension section connected with the fixed section in a sliding manner, a graduated scale is arranged on the extension section, and a locking piece is arranged between the fixed section and the extension section. The length of the fixed arm can be adjusted, and the fixed arm is convenient to be matched with well pipes with different diameters.
Further, the telescopic arm comprises an outer sleeve, an inner sleeve and a supporting spring/reset spring positioned in the outer sleeve, and the end parts of the supporting spring/reset spring are respectively connected with the outer sleeve and the inner sleeve.
The invention relates to a method for repairing well wall water permeability, which uses the repairing device and comprises the following steps:
firstly, selecting a repairing unit with the lengths of a fixed arm and a telescopic arm matched with that of a well pipe to be cleaned, and installing the repairing unit on a working rod, wherein the repairing cutters are in a vertical state;
step two, connecting the lifting mechanism and the working rod to enable the working rod to be suspended in the well pipe, wherein the working rod coincides with the central shaft of the well pipe;
thirdly, starting a lifting mechanism to enable the working rod to fall for a certain distance, in the process, enabling the sliding part of each repairing unit to move upwards relative to the locking part under the resistance of water body, pushing the telescopic arm to stretch, enabling the repairing knife to be in an inclined state, and enabling the cutting edge to be connected with a well wall to cut and clean well wall scales; then, the working rod is lifted to the original position, in the process, the sliding part of each repairing unit moves downwards relative to the locking part under the resistance of the water body, so that the telescopic arm is pulled back and reset, and the repairing knife is lifted up smoothly in a vertical state;
fourth, repeating the third step for a plurality of times to finish the cleaning of the well wall scale in the stroke by the repairing unit;
and fifthly, adjusting the upper and lower positions of the working rod, repeating the fourth step, cleaning the scale of the well wall at other parts, and recovering the water permeability of the well wall.
The integrated well wall repairing device provided by the invention has the advantages of simple structure, easiness in manufacturing and installation, small occupied space, controllable oblique cutting force of the cutter, no damage to an original well pipe, high multilayer arrangement efficiency, strong size adaptability and the like. According to the method for repairing the well wall permeable, the integrated well wall repairing device is used, the water body resistance is ingeniously utilized to automatically adjust the position of the repairing blade opening, and the working rod is moved up and down, so that the well wall dirt can be repeatedly cleaned, and a good cleaning effect is achieved on stubborn dirt.
Drawings
FIG. 1 is a schematic view of the structure of the falling scale cleaning state of the present invention.
Fig. 2 is a schematic view of the structure of the invention in the raised-return state.
Fig. 3 is a schematic view of the connection structure of the surface of the fixing arm in fig. 1.
Fig. 4 is a schematic top view of the slider of fig. 1.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the accompanying drawings, and the embodiments and specific construction processes of the present invention are given by implementing the embodiments on the premise of the technical solution of the present invention, but the scope of protection of the present invention is not limited to the following embodiments.
As shown in fig. 1-4, the integrated well wall repairing device of the invention comprises a working rod 1, wherein at least one repairing unit is arranged on the working rod 1, and each repairing unit consists of a locking piece 2, a sliding piece 3, a repairing knife 4, a fixed arm 5 and a telescopic arm 6.
The locking piece 2 is sleeved on the working rod 1 and fixedly connected with the working rod 1, a stepped shaft type structure is generally adopted, the upper large round table can be used as a limiting piece 21, a plurality of vertical mounting plates 22 for connecting the fixing arms 5 are arranged around the lower small round table, and when the fixing arms 5 are connected with the locking piece 2, the limiting piece 21 can ensure that the fixing arms 5 are always in a horizontal state.
The sliding member 3 is located below the locking member 2, and has a disc shape with a central opening 31, and is sleeved on the working rod 1 to slide up and down along the working rod 1. In the process of ascending and descending of the sliding piece 3, the upper surface and the lower surface (namely the horizontal water blocking surface) of the horizontal disc are provided with larger contact surfaces with the water in the well, so that the movement speed of the sliding piece 3 can be reduced. A plurality of lugs 32 are provided on the upper surface of the slider 3 at intervals in the circumferential direction for connecting the telescopic arms 6.
The repairing knives 4 are arranged outside the working rod 1 and are arranged at intervals in the circumferential direction with the working rod 1 as the center. The main body of the repairing knife 4 is of an arc surface structure matched with a well wall, the lower end face of the main body is an inner incision-shaped cutting edge 41, a plurality of triangular mounting plates 42 are arranged on the inner side of the main body of the repairing knife 4, and each triangular mounting plate 42 is connected with a fixing arm 5 and a telescopic arm 6.
The fixing arm 5 is located between the locking member 2 and the repairing knife 4, one end of the fixing arm is fixedly connected with the locking member 2, and the other end of the fixing arm is hinged with the repairing knife 4. Specifically, the fixing arm 5 is composed of a fixing section 51 and an extension section 52 which are disposed in the same direction, and both are slidably connected and provided with locking members such as bolts. The length of the fixing arm 5 can be adjusted by adjusting the relative positions of the extension section 52 and the fixing section 51, so that the repairing knife 4 positioned on the extension section 52 can be adapted to well pipes with different diameters, and the application range is wider. Preferably, a scale is provided on the extension 52, and the length of the fixing arm 5 can be conveniently adjusted as required.
The telescopic arm 6 is used for connecting the sliding part 3 and the repairing knife 4, is correspondingly arranged below each fixed arm 5, one end of the telescopic arm is hinged with the sliding part 3, and the other end of the telescopic arm is hinged with the repairing knife 4. In general, the telescopic arm 6 adopts a two-section structure, and is formed by sleeving an outer sleeve 61 and an inner sleeve 62, which are hollow tubes with one ends open, a return spring 63 (a supporting spring can be selected according to the situation) is arranged in the inner cavity of the telescopic arm, and the ends of the return spring 63 are respectively connected with the bottom sealing ends of the outer sleeve 61 and the inner sleeve 62. When the telescopic arm 6 changes length, the repairing knife 4 at the end of the outer sleeve 61 is pushed or pulled to rotate. Generally, when the repairing unit is above the water surface, the repairing knife 4 is in a vertical state, and the restoring spring 63 of the telescopic arm 6 does not push and pull deformation; when the repairing unit is under the water surface and in a falling state, the bottom cutting edge 41 of the repairing knife 4 can move outwards in an inclined mode, and at the moment, the restoring spring 63 of the telescopic arm 6 is forced to push and stretch; when the restoration unit is below the water surface and in the raised state, the bottom edge 41 of the restoration blade 4 is moved obliquely inward again until the restoration unit is restored to the vertical state, and at this time, the return spring 63 of the telescopic arm 6 is also restored to the original position.
The invention relates to a method for repairing well wall water permeability, which is realized by using the repairing device and comprises the following steps:
the first step is to measure the inside diameter of the well pipe to be cleaned, select a repair unit adapted to the well pipe and mount it on the work rod 1. The above-mentioned adaptation with well pipe means that when work pole 1 and the central axis coincidence of well pipe, through the fixed arm 5 length of adjustment, can make restoration sword 4 just can be in vertical state, and restoration sword 4's facade radius is slightly less than well pipe radius. One or more repair units, in this embodiment two repair units, may be selected.
And secondly, erecting lifting equipment with a winch function at a wellhead, connecting a steel wire rope of the lifting equipment to the top end of the working rod 1, suspending the working rod 1 in a well pipe, and overlapping the working rod 1 with the central axis of the well pipe.
Thirdly, starting lifting equipment to enable the working rod 1 to fall a certain distance, in the process, the sliding piece 3 of each repairing unit moves upwards relative to the locking piece 2 under the resistance of water body, the telescopic arm 6 pushes and stretches, the repairing knife 4 is in an inclined state, the cutting edge 41 is contacted with the well wall, and therefore cutting and cleaning are carried out on well wall scales; then, the working rod 1 is lifted to the original position, in the process, the sliding part 3 of each repairing unit moves downwards relative to the locking part 2 under the resistance of the water body, the telescopic arm 6 is reset, and the repairing knife 4 is restored to the vertical state and is lifted smoothly.
Fourth, repeating the third step for a plurality of times to finish the cleaning of the well wall scale in the stroke by the repairing unit;
and fifthly, adjusting the position of the working rod 1, repeating the fourth step, and cleaning the well wall scale of other parts.
In actual work, the cleaning work can be repeatedly performed from bottom to top, or can be continuously or discontinuously performed, and the cleaning and the clearing can be continuously performed at the same depth for a certain time. The standard for judging the completion of cleaning the well wall scale is generally: when the repairing unit is in the falling process, the repairing knife 4 has no feel of being in a pause, and the cleaning and clearing work of the well wall scale is finished.
It should be noted that, in the description of the present invention, terms such as "front", "rear", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Claims (4)
1. An integrated well wall repairing device which is characterized in that: including the working rod, be provided with at least one repair unit on the working rod, each repair unit all includes:
the locking piece is sleeved on the working rod and fixedly connected with the working rod;
the sliding piece is arranged below the locking piece, is connected with the working rod in a sliding manner, and is provided with a horizontal water blocking surface;
the repairing cutters are arranged at the outer side of the working rod and are arranged at intervals along the circumferential direction, the repairing cutters are of cambered surface structures matched with the well wall, and the cutting edges of the repairing cutters are arranged on the lower end face;
the fixed arm is arranged between the locking piece and each repair knife, one end of the fixed arm is fixedly connected with the locking piece, and the other end of the fixed arm is hinged with the repair knife;
the telescopic arm is correspondingly arranged below the fixed arm, one end of the telescopic arm is hinged with the sliding part, and the other end of the telescopic arm is hinged with the repairing knife;
the telescopic arm comprises an outer sleeve, an inner sleeve and a supporting spring/reset spring positioned in the outer sleeve, and the end parts of the supporting spring/reset spring are respectively connected with the outer sleeve and the inner sleeve.
2. The integrated borehole wall repair device as set forth in claim 1 wherein: the locking piece is provided with a limiting piece which is positioned above the fixed arm and enables the fixed arm to be in a horizontal state.
3. The integrated borehole wall repair device as set forth in claim 1 wherein: the fixed arm comprises a fixed section and an extension section connected with the fixed section in a sliding manner, a graduated scale is arranged on the extension section, and a locking piece is arranged between the fixed section and the extension section.
4. A method for repairing a well wall by water permeation, which is characterized by using the repairing device of claim 1, comprising the following steps:
firstly, selecting a repairing unit with the lengths of a fixed arm and a telescopic arm matched with that of a well pipe to be cleaned, and installing the repairing unit on a working rod, wherein the repairing cutters are in a vertical state;
step two, connecting the lifting mechanism and the working rod to enable the working rod to be suspended in the well pipe, wherein the working rod coincides with the central shaft of the well pipe;
thirdly, starting a lifting mechanism to enable the working rod to fall for a certain distance, in the process, enabling the sliding part of each repairing unit to move upwards relative to the locking part under the resistance of water body, pushing the telescopic arm to stretch, enabling the repairing knife to be in an inclined state, and enabling the cutting edge to be connected with a well wall to cut and clean well wall scales; then, the working rod is lifted to the original position, in the process, the sliding part of each repairing unit moves downwards relative to the locking part under the resistance of the water body, so that the telescopic arm is pulled back and reset, and the repairing knife is lifted up smoothly in a vertical state;
fourth, repeating the third step for a plurality of times to finish the cleaning of the well wall scale in the stroke by the repairing unit;
and fifthly, adjusting the upper and lower positions of the working rod, repeating the fourth step, cleaning the scale of the well wall at other parts, and recovering the water permeability of the well wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210829114.1A CN115163007B (en) | 2022-07-15 | 2022-07-15 | Integrated well wall repairing device and well wall water permeability repairing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210829114.1A CN115163007B (en) | 2022-07-15 | 2022-07-15 | Integrated well wall repairing device and well wall water permeability repairing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115163007A CN115163007A (en) | 2022-10-11 |
| CN115163007B true CN115163007B (en) | 2023-10-17 |
Family
ID=83495875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210829114.1A Active CN115163007B (en) | 2022-07-15 | 2022-07-15 | Integrated well wall repairing device and well wall water permeability repairing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115163007B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09150122A (en) * | 1995-11-29 | 1997-06-10 | Petsuku:Kk | Pipe cleaning device |
| CN104550145A (en) * | 2013-10-17 | 2015-04-29 | 天津市蓝海华博科技发展有限公司 | Hydraulic pipeline dirt-cleaner |
| CN105127159A (en) * | 2015-10-26 | 2015-12-09 | 韩炳欣 | Cleaning machine for smoke exhaust pipe |
| CN110284838A (en) * | 2019-07-01 | 2019-09-27 | 桐城市湃腾机械设计有限公司 | Pipe device under a kind of construction drilling well |
| CN209838375U (en) * | 2019-03-10 | 2019-12-24 | 高志荣 | Well washing device |
| CN211951870U (en) * | 2020-04-17 | 2020-11-17 | 福光环境工程(上海)有限公司 | Local strutting arrangement is used in non-excavation formula pipeline restoration |
| CN112360372A (en) * | 2021-01-13 | 2021-02-12 | 东营政阳自动化科技有限公司 | Oil field well head greasy dirt cleaning treatment device |
| CN212867506U (en) * | 2020-07-28 | 2021-04-02 | 盐城华睿通机械有限公司 | Hydraulic anchor overhauls uses surperficial scraping device convenient to shrink |
| CN113565467A (en) * | 2021-07-08 | 2021-10-29 | 太原理工大学 | Umbrella-shaped geothermal well descaling device and descaling method thereof |
| CN113926810A (en) * | 2021-09-03 | 2022-01-14 | 安徽天思朴超精密模具有限公司 | Pipe detection device |
| CN216240505U (en) * | 2021-11-22 | 2022-04-08 | 孙金波 | Oil recovery well washing device for oil recovery in oil field |
| CN216788370U (en) * | 2022-01-18 | 2022-06-21 | 黄河勘测规划设计研究院有限公司 | Integrated self-rotating high-pressure well-flushing machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020122936A1 (en) * | 2018-12-14 | 2020-06-18 | Halliburton Energy Services, Inc. | Wellbore scraper assembly |
-
2022
- 2022-07-15 CN CN202210829114.1A patent/CN115163007B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09150122A (en) * | 1995-11-29 | 1997-06-10 | Petsuku:Kk | Pipe cleaning device |
| CN104550145A (en) * | 2013-10-17 | 2015-04-29 | 天津市蓝海华博科技发展有限公司 | Hydraulic pipeline dirt-cleaner |
| CN105127159A (en) * | 2015-10-26 | 2015-12-09 | 韩炳欣 | Cleaning machine for smoke exhaust pipe |
| CN209838375U (en) * | 2019-03-10 | 2019-12-24 | 高志荣 | Well washing device |
| CN110284838A (en) * | 2019-07-01 | 2019-09-27 | 桐城市湃腾机械设计有限公司 | Pipe device under a kind of construction drilling well |
| CN211951870U (en) * | 2020-04-17 | 2020-11-17 | 福光环境工程(上海)有限公司 | Local strutting arrangement is used in non-excavation formula pipeline restoration |
| CN212867506U (en) * | 2020-07-28 | 2021-04-02 | 盐城华睿通机械有限公司 | Hydraulic anchor overhauls uses surperficial scraping device convenient to shrink |
| CN112360372A (en) * | 2021-01-13 | 2021-02-12 | 东营政阳自动化科技有限公司 | Oil field well head greasy dirt cleaning treatment device |
| CN113565467A (en) * | 2021-07-08 | 2021-10-29 | 太原理工大学 | Umbrella-shaped geothermal well descaling device and descaling method thereof |
| CN113926810A (en) * | 2021-09-03 | 2022-01-14 | 安徽天思朴超精密模具有限公司 | Pipe detection device |
| CN216240505U (en) * | 2021-11-22 | 2022-04-08 | 孙金波 | Oil recovery well washing device for oil recovery in oil field |
| CN216788370U (en) * | 2022-01-18 | 2022-06-21 | 黄河勘测规划设计研究院有限公司 | Integrated self-rotating high-pressure well-flushing machine |
Non-Patent Citations (1)
| Title |
|---|
| 管路清理器在煤矿排水***中的应用;刘明;张钊;张政;;山东煤炭科技(第01期);190-191+196 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115163007A (en) | 2022-10-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108590213B (en) | Automatic robot for building wall surface breaking ceramic tiles | |
| CN115163007B (en) | Integrated well wall repairing device and well wall water permeability repairing method | |
| CN212003029U (en) | Drilling device that punches that highway maintenance was used | |
| CN113106880B (en) | Reverse supporting device for bridge gap repair and implementation method thereof | |
| CN113530448A (en) | One-time pore-forming while-drilling casing device for soft coal seam | |
| CN210918247U (en) | Single-side operation screw | |
| CN115538520B (en) | Desilting device for hydraulic engineering | |
| CN218766083U (en) | Concrete drilling core taking machine | |
| CN216326539U (en) | Cutting device is used in aluminum products production | |
| CN211679101U (en) | Cleaning device for threaded hole of aluminum alloy structural part | |
| CN213179809U (en) | Device for measuring buried depth and pipe inner diameter of rain sewage pipeline | |
| CN215595491U (en) | One-time pore-forming while-drilling casing device for soft coal seam | |
| CN213115805U (en) | Guardrail for construction | |
| JP2006249694A (en) | Cleaning device of open caisson cutting edge | |
| CN114232779A (en) | Self-cleaning sewage draining device for drainage pipeline | |
| CN111305017A (en) | Curb replacing device | |
| CN112854424A (en) | Sewer decontamination equipment | |
| CN220953813U (en) | Municipal works sewer dredging device | |
| CN217453264U (en) | Indoor wall cleaning device for architectural decoration | |
| CN218409045U (en) | Drainage pipe detection robot convenient to clearance | |
| CN219012536U (en) | Protection mechanism of oil pipe power tongs | |
| CN211572481U (en) | High altitude construction auxiliary device for building | |
| CN212888300U (en) | Perforating device for building engineering | |
| CN214741157U (en) | Fixing device for oil production pipeline | |
| CN220642345U (en) | Well lid lifting machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |