CN202412454U - Cement jet type two-level mixing device for well cementation - Google Patents
Cement jet type two-level mixing device for well cementation Download PDFInfo
- Publication number
- CN202412454U CN202412454U CN2012200341093U CN201220034109U CN202412454U CN 202412454 U CN202412454 U CN 202412454U CN 2012200341093 U CN2012200341093 U CN 2012200341093U CN 201220034109 U CN201220034109 U CN 201220034109U CN 202412454 U CN202412454 U CN 202412454U
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- pipe
- diffuser
- jet pipe
- well cementation
- cement
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Abstract
A cement jet type two-level mixing device for well cementation comprises a mixer, a cylindrical diffuser and an exhaust pipe. The exhaust pipe inserted into the center of the diffuser is arranged in the middle of the top of the diffuser, a tangential inlet is arranged on the periphery of the upper portion of the diffuser and in welded or threaded connection with the mixer, and the lower end of the diffuser is welded to the middle of the top of a slurry mixing tank. The mixer is a jet type two-level mixer, a jet pipe is inserted into the center of a cement inlet pipe and welded to the same, two secondary mixed slurry inlets are symmetrically arranged on the cement inlet pipe on the periphery of a jet pipe nozzle, the diameter of the secondary mixed slurry inlets is larger than that of the cement inlet pipe, and the center lines of the secondary mixed slurry inlets penetrate through the cement inlet pipe to be obliquely intersected on the center line of the jet pipe nozzle. By means of primary and secondary mixing of the mixer, mixing of the diffuser and stirring of the slurry mixing tank, the problem of uniformity in cement mixing for well cementation is solved, the defects of complexity, high equipment consumption and long well cementation period of original well cementation slurry mixing process are overcome, and well cementation quality and operating efficiency are improved.
Description
Technical field
The utility model relates to cementing slurry cementing concrete jetting type twin-stage mixing arrangement in a kind of oil drilling program.
Background technology
In well cementation work, the even inhomogeneous of cement mortar mixing is the basic assurance of cementing quality, and the cement mortar mixing arrangement of usefulness all is that the jetting type single-stage is mixed at present; Mixed cement mortar exists uneven phenomenon, for guaranteeing the quality of cement mortar, pumps into mud pit again and mixes; Pump into plunger displacement pump after the mixing again, cement the well complex process in the well that reinjects after the supercharging; It is many to employ equipment, and the well cementation cycle is long, does not meet the requirement that the fast completion of F.F. is bored in the oil field soon.
Summary of the invention
The purpose of the utility model provides a kind of cementing concrete jetting type twin-stage mixing arrangement, solves the problem that above-mentioned prior art exists.
The technical scheme of the utility model realizes in the following manner:
The utility model is made up of blender, diffuser and blast pipe; It is cylindrical to it is characterized in that diffuser is made as, and is provided with the blast pipe that inserts the diffuser center at middle part, last top, and all sides are provided with tangential entry on top; With blender welding or be threaded, weld at the middle part, top on bottom and the mixed stock tank; Blender is made as jetting type twin-stage blender; Jet pipe inserts the center of water inlet plaster pipe and welds together; On jet pipe nozzle ring week place's water inlet plaster pipe, be arranged with two secondary mixing slurry inlets; The diameter at secondary mixing slurry inlet place is greater than water inlet plaster pipe diameter, and the center line of secondary mixing slurry inlet passes on the center line of the oblique and cross jet pipe nozzle of water plaster pipe into.
It is trapezoidal that the jet pipe nozzle is made as circle, is located at the jet pipe front end face, with the same center line of jet pipe, evenly is provided with several radiation holes at trapezoidal upper bottom surface and all sides.
The utility model utilizes the mixed once secondary of blender to mix and the mixing of diffuser and the stirring of mixed stock tank; Solved the problem that cementing slurry stirs, overcome former well cementation and mixed the sizing process complicacy, it is many to employ equipment; The defective that the well cementation cycle is long has improved cementing quality and operating efficiency.
Description of drawings
Fig. 1 is the structural representation of the utility model,
Fig. 2 is the vertical view of Fig. 1,
Fig. 3 is the structural representation of blender.
1-water inlet plaster pipe, 2-jet pipe, 3-secondary mixing slurry inlet, 4-blender, 5-blast pipe, 6-diffuser, 7-jet pipe nozzle among the figure.
The specific embodiment
For further disclosing the technical scheme of the utility model, elaborate through embodiment below in conjunction with Figure of description:
The utility model is made up of blender 4, diffuser 6 and blast pipe 5; It is cylindrical to it is characterized in that diffuser is made as; Be provided with the blast pipe that inserts the diffuser center at middle part, last top; Top week side be provided with tangential entry, with the blender welding or be threaded, weld at the middle part, top on bottom and the mixed stock tank; Blender is made as jetting type twin-stage blender; Jet pipe inserts the center of water inlet plaster pipe and welds together; On jet pipe nozzle ring week place's water inlet plaster pipe, be arranged with two secondary mixing slurry inlets; The diameter at secondary mixing slurry inlet place is greater than water inlet plaster pipe diameter, and the center line of secondary mixing slurry inlet passes on the center line of the oblique and cross jet pipe nozzle of water plaster pipe into.
When using the utility model; At first diffuser 6 lower ends are welded with mixed stock tank is vertical; The plaster pipe 1 of will intaking carries the concrete grey carrier pipe with compressed air and is connected, and jet pipe 2 is connected with the water under high pressure carrier pipe, and secondary mixing slurry mouth is connected through concrete pump with mixed stock tank outlet.Water under high pressure is ejected on the blender barrel from 7 radiation of jet pipe nozzle, and the concrete grey that the generation negative pressure blows into compressed air sucks and sends forth, and the tangential gets into diffuser 6, in diffuser, produces eddy current, promotes concrete grey to continue mixing.Pump into secondary mixing slurry inlet 3 entering blenders 4 through the concrete pump that mixes stock tank again and carry out the secondary mixing.In mixed process, compressed air is discharged from blast pipe 5, pumps into three-cylinder plunger pump supercharging injection well through concrete pump after cement mortar mixes and cements the well.
Claims (2)
1. cementing concrete jetting type twin-stage mixing arrangement; Form by blender, diffuser and blast pipe; It is cylindrical to it is characterized in that diffuser is made as, and is provided with the blast pipe that inserts the diffuser center at middle part, last top, and all sides are provided with tangential entry on top; With blender welding or be threaded, weld at the middle part, top on bottom and the mixed stock tank; Blender is made as jetting type twin-stage blender; Jet pipe inserts the center of water inlet plaster pipe and welds together; On jet pipe nozzle ring week place's water inlet plaster pipe, be arranged with two secondary mixing slurry inlets; The diameter at secondary mixing slurry inlet place is greater than water inlet plaster pipe diameter, and the center line of secondary mixing slurry inlet passes on the center line of the oblique and cross jet pipe nozzle of water plaster pipe into.
2. cementing concrete jetting type twin-stage mixing arrangement according to claim 1, it is round trapezoidal to it is characterized in that the jet pipe nozzle is made as, and is located at the jet pipe front end face, with the same center line of jet pipe, evenly is provided with several radiation holes at trapezoidal upper bottom surface and all sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200341093U CN202412454U (en) | 2012-01-17 | 2012-01-17 | Cement jet type two-level mixing device for well cementation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200341093U CN202412454U (en) | 2012-01-17 | 2012-01-17 | Cement jet type two-level mixing device for well cementation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202412454U true CN202412454U (en) | 2012-09-05 |
Family
ID=46737246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200341093U Expired - Fee Related CN202412454U (en) | 2012-01-17 | 2012-01-17 | Cement jet type two-level mixing device for well cementation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202412454U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758743A (en) * | 2014-01-20 | 2014-04-30 | 兰州理工大学 | Solid-liquid self-mixed multifunctional pump closing-type experimental device |
| CN104029293A (en) * | 2014-06-04 | 2014-09-10 | 三一汽车制造有限公司 | Jet type cement slurry mixing device |
| CN114800867A (en) * | 2022-05-05 | 2022-07-29 | 西南石油大学 | Well cementation cement slurry mixing device |
-
2012
- 2012-01-17 CN CN2012200341093U patent/CN202412454U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758743A (en) * | 2014-01-20 | 2014-04-30 | 兰州理工大学 | Solid-liquid self-mixed multifunctional pump closing-type experimental device |
| CN104029293A (en) * | 2014-06-04 | 2014-09-10 | 三一汽车制造有限公司 | Jet type cement slurry mixing device |
| CN114800867A (en) * | 2022-05-05 | 2022-07-29 | 西南石油大学 | Well cementation cement slurry mixing device |
| CN114800867B (en) * | 2022-05-05 | 2023-05-30 | 西南石油大学 | Well cementation cement paste mixing arrangement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20180117 |