CN203008851U - Cementing rotary flow short casing - Google Patents
Cementing rotary flow short casing Download PDFInfo
- Publication number
- CN203008851U CN203008851U CN 201320014106 CN201320014106U CN203008851U CN 203008851 U CN203008851 U CN 203008851U CN 201320014106 CN201320014106 CN 201320014106 CN 201320014106 U CN201320014106 U CN 201320014106U CN 203008851 U CN203008851 U CN 203008851U
- Authority
- CN
- China
- Prior art keywords
- cementing
- short casing
- pipe nipple
- rotary flow
- nipple body
- 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.)
- Expired - Lifetime
Links
- 239000012530 fluid Substances 0.000 claims description 22
- 210000002445 nipple Anatomy 0.000 claims description 20
- 238000005553 drilling Methods 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 3
- 239000003208 petroleum Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
A cementing rotary flow short casing relates to petroleum machinery, particularly to a tool for oilfield well drilling completion construction. The cementing rotary flow short casing comprises a short casing body (1), wherein a plurality of liquid outlet holes (2) are formed in the pipe wall of the short casing body (1); the included angle Alpha between each liquid outlet hole (2) and the axis of the short casing body (1) is 10-160 degrees; and the included angle Beta between the liquid outlet hole (2) and the radial direction of the short casing body (1) is 0-70 degrees. The cementing rotary flow short casing has the advantages of simple structure, convenience in operation and carrying, small size, light weight, good using effect and high cementing quality.
Description
Technical field
The utility model relates to petroleum machinery, is specifically related to a kind of instrument for the construction of oil drilling completion.
Background technology
At present, each oil field is in the drilling completion construction, the modes that adopt direct circulation more, be that cementing fluid is directly discharged from the tubing string guide shoe by tubing string, and return on directly along the annular space between tubing string and the borehole wall, upper return process in can be along the gap larger spatial flow of cementing fluid, it is relatively less or do not flow that the less space cementing fluid in gap flows, form the dead band, have a strong impact on cementing quality.
Summary of the invention
Technical problem to be solved in the utility model is: for the oil drilling cementing operation provides a kind of instrument that can change cementing fluid flow direction and the type of flow, effectively guarantee to be full of in annular space cementing fluid, can not form the dead band, thereby guarantee cementing quality.
Technical solution of the present utility model is: it comprises the pipe nipple body, and described pipe nipple body is provided with some fluid holes in tube wall, the axis angle α of fluid hole and pipe nipple body be 10～160 the degree, with the pipe nipple body radially angle β be 0～70 the degree.
Technique effect of the present utility model is: it have advantages of simple in structure, easy to operate, volume is little, lightweight, convenient in carrying, that result of use reaches cementing quality well is high.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the A-A sectional view of Fig. 1.
The specific embodiment
As illustrated in fig. 1 and 2, it comprises pipe nipple body 1, and described pipe nipple body 1 is provided with some fluid holes 2 in tube wall, and fluid hole 2 is 10～160 degree with the axis angle α of pipe nipple body 1, with pipe nipple body 1 radially angle β be 0～70 degree.
Described fluid hole 2 is distributed on the tube wall of pipe nipple body 1.
Described fluid hole 2 quantity are 4～80.
Described fluid hole 2 is preferably 10～80 degree with the axis angle α of pipe nipple body 1.
The utility model is used for the oil drilling cementing operation, changes the flow direction of cementing fluid.Pipe nipple and box cupling are used in conjunction with, by box cupling, pipe nipple is connected to the below of tubing string, liquid is by injecting liquid into by the fluid hole on pipe nipple the annular space that tubing string and the borehole wall form in tubing string, and force fluid to rise in the shape of a spiral, be conducive to clean the borehole wall and high displacement efficiency, make whole annular space all be full of cementing fluid and improve cementing quality.
Claims (5)
1. well cementation vortex sub, comprise pipe nipple body (1), it is characterized in that, described pipe nipple body (1) is provided with some fluid holes (2) in tube wall, the axis angle α of fluid hole (2) and pipe nipple body (1) is 10～160 degree, with pipe nipple body (1) radially angle β be 0～70 degree.
2. well cementation vortex sub as claimed in claim 1, is characterized in that, described fluid hole (2) is distributed on the tube wall of pipe nipple body (1).
3. well cementation vortex sub as claimed in claim 1 or 2, is characterized in that, described fluid hole (2) quantity is 4～80.
4. well cementation vortex sub as claimed in claim 1 or 2, is characterized in that, described fluid hole (2) is 10～80 degree with the axis angle α of pipe nipple body (1).
5. well cementation vortex sub as claimed in claim 3, is characterized in that, described fluid hole (2) is 10～80 degree with the axis angle α of pipe nipple body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320014106 CN203008851U (en) | 2013-01-11 | 2013-01-11 | Cementing rotary flow short casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320014106 CN203008851U (en) | 2013-01-11 | 2013-01-11 | Cementing rotary flow short casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203008851U true CN203008851U (en) | 2013-06-19 |
Family
ID=48600458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320014106 Expired - Lifetime CN203008851U (en) | 2013-01-11 | 2013-01-11 | Cementing rotary flow short casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203008851U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015034369A1 (en) * | 2013-09-06 | 2015-03-12 | Hydra Systems As | Method for isolation of a permeable zone in a subterranean well |
| US10260311B2 (en) | 2012-03-09 | 2019-04-16 | Hydra Systems As | Method for combined cleaning and plugging in a well and flushing tool for flushing in a well |
-
2013
- 2013-01-11 CN CN 201320014106 patent/CN203008851U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10260311B2 (en) | 2012-03-09 | 2019-04-16 | Hydra Systems As | Method for combined cleaning and plugging in a well and flushing tool for flushing in a well |
| WO2015034369A1 (en) * | 2013-09-06 | 2015-03-12 | Hydra Systems As | Method for isolation of a permeable zone in a subterranean well |
| GB2531684A (en) * | 2013-09-06 | 2016-04-27 | Hydra Systems As | Method for isolation of a permeable zone in a subterranean well |
| GB2531684B (en) * | 2013-09-06 | 2017-02-15 | Hydra Systems As | Method of isolation of a permeable zone in a subterranean well |
| US10301904B2 (en) | 2013-09-06 | 2019-05-28 | Hydra Systems As | Method for isolation of a permeable zone in a subterranean well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130619 |