CN203430474U - Automatic completion fluid injection control device - Google Patents
Automatic completion fluid injection control device Download PDFInfo
- Publication number
- CN203430474U CN203430474U CN201320569117.2U CN201320569117U CN203430474U CN 203430474 U CN203430474 U CN 203430474U CN 201320569117 U CN201320569117 U CN 201320569117U CN 203430474 U CN203430474 U CN 203430474U
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- CN
- China
- Prior art keywords
- sliding sleeve
- inner sliding
- blind plate
- control device
- injection control
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- 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 - Fee Related
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model discloses an automatic completion fluid injection control device, and relates to the field of oil field completion technology. The automatic completion fluid injection control device comprises a pipe cylinder, a blind plate, an inner sliding sleeve and a shear pin, wherein the blind plate is fixedly mounted in the pipe cylinder; the pipe cylinder above the blind plate is connected with an inner sliding sleeve through the shear pin; a liquid flowing hole is formed between the blind plate and the inner sliding sleeve; a positioning device is arranged on one side, fitted with the pipe cylinder, of the inner sliding sleeve; the positioning device is formed by the connection of a movable baffle and a spring. The automatic completion fluid injection control device has the advantages that the liquid flowing hole is formed in the device, so that liquid in a well can automatically flow into a sleeve, grouting is unnecessary, and plenty of time is saved; the damage of the blind plate is effectively reduced, and the safety and reliability of operation are improved; the inner sliding sleeve can be fixed through the positioning device during well cementation, and the liquid flowing hole is closed, so that a liquid flowing channel between the inside of the sleeve and a well casing is blocked to provide a good operating environment for the follow-up cement injection and slurry purifying operation; the device is compact and reasonable in structure, and facilitates the development and application of an oil field.
Description
Technical field
The utility model relates to oilfield well completion technical field, relates in particular to the automatic injection control device of a kind of completion fluid.
Background technology
Sleeve pipe is the steel pipe for supporting oil, the gas well borehole wall, with guarantee drilling process carry out with completion after the normal operation of whole oil well.Which floor sleeve pipe every a bite well, according to different drilling depths and geological condition, be used.Sleeve pipe will adopt well cementing of cement after going into the well, and it is different from oil pipe, drilling rod, cannot reuse, and belongs to disposable consumable material.So the consumption of sleeve pipe accounts for the more than 70% of whole oil well pipes.In cased process, if can not be timely to cover ipe grout, due to sleeve pipe inside and outside differential pressure, be easy to cause that blind plate is squeezed ruins, cause cannot carrying out in ensuing work.
Utility model content
The utility model is intended to for the deficiency existing in background technology, and provides a kind of completion fluid automatic injection control device.
The automatic injection control device of completion fluid of the present utility model, to be formed by tube column, blind plate, inner sliding sleeve and shear pin, in tube column, fixedly mounted blind plate, on the top tube column of blind plate, by shear pin, connected inner sliding sleeve, tube column between blind plate and inner sliding sleeve is provided with fluid hole, between inner sliding sleeve and tube column, joint place is provided with positioner, and positioner is to be connected and composed by movable baffle plate and spring.
As further improvement of the utility model, described fluid hole is no less than one.
As further improvement of the utility model, the part that described blind plate, inner sliding sleeve and tube column fit is equipped with O-ring seals.
The advantage of the automatic injection control device of completion fluid of the present utility model is:
1, the automatic injection control device of completion fluid of the present utility model is provided with fluid hole, can realize liquid in well and automatically flow in sleeve pipe, does not need grouting, has saved a large amount of time;
2, the automatic injection control device of completion fluid of the present utility model has effectively reduced the damage of blind plate, has improved the security reliability of operation;
3, the automatic injection control device of completion fluid of the present utility model is fixed inner sliding sleeve by positioner when well cementation, closed fluid hole, make flow liquid passage between inside pipe casing and well casing by shutoff, for follow-up cement injection with propose slurry operation good working environment is provided;
4, the automatic injection control device compact conformation of completion fluid of the present utility model is reasonable, is conducive to exploitation and the use in oil field, can large batch of production and popularization.
Accompanying drawing explanation
Fig. 1 is the structural representation of the automatic injection control device of completion fluid of the present utility model.
The specific embodiment
Below in conjunction with Fig. 1, to the automatic injection control device of a kind of completion fluid of the present utility model, be described further.
The automatic injection control device of completion fluid of the present utility model, to be formed by tube column 1, blind plate 2, inner sliding sleeve 3 and shear pin 4, it is characterized in that the interior blind plate 2 that fixedly mounted of tube column 1, on the top tube column 1 of blind plate 2, by shear pin 4, connected inner sliding sleeve 3, the tube column 1 that blind plate 2 and inner sliding sleeve are 3 is provided with more than one fluid hole 5,1 joint place of inner sliding sleeve 3 and tube column is provided with positioner 6, in inner sliding sleeve 3, form flow liquid passage 7, positioner 6 is to be connected and composed by movable baffle plate and spring.Described blind plate 2, inner sliding sleeve 3 are equipped with O-ring seals 8 with the part that tube column 1 fits.
The utility model does not in use need grouting, and in well, liquid can be flow in sleeve pipe by the fluid hole on tube column automatically, realizes automatic grouting, makes well casing internal and external pressure balance.When well cementation, first drop into a bottom plug, the use pump housing is suppressed, make rubber stopper be displaced downwardly to the upper surface of inner sliding sleeve, continue to boost, shear pin is by the section of cutting, inner sliding sleeve seals fluid hole, and when the bottom surface of inner sliding sleeve contacts completely with blind plate, the spring of fastening devices is released movable baffle plate, inner sliding sleeve is fixed, prevent from moving on inner sliding sleeve, at this moment the flow liquid passage between inside pipe casing and well casing is by shutoff, the sizing collar perforate on the external packer of pipe top while being pressed onto certain numerical value of spraining, sleeve pipe is inside and outside to be communicated with, and can carry out cement injection and propose slurry operation.
Claims (3)
1. the automatic injection control device of completion fluid, to be formed by tube column (1), blind plate (2), inner sliding sleeve (3) and shear pin (4), it is characterized in that having fixedly mounted in tube column (1) blind plate (2), the top tube column (1) of blind plate (2) has above connected inner sliding sleeve (3) by shear pin (4), tube column (1) between blind plate (2) and inner sliding sleeve (3) is provided with fluid hole (5), between inner sliding sleeve (3) and tube column (1), joint place is provided with positioner (6), and positioner (6) is to be connected and composed by movable baffle plate and spring.
2. the automatic injection control device of completion fluid as claimed in claim 1, is characterized in that described fluid hole (5) is for being no less than one.
3. the automatic injection control device of completion fluid as claimed in claim 1, is characterized in that described blind plate (2), inner sliding sleeve (3) are equipped with O-ring seals (8) with the part that tube column (1) fits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320569117.2U CN203430474U (en) | 2013-09-14 | 2013-09-14 | Automatic completion fluid injection control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320569117.2U CN203430474U (en) | 2013-09-14 | 2013-09-14 | Automatic completion fluid injection control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203430474U true CN203430474U (en) | 2014-02-12 |
Family
ID=50059519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320569117.2U Expired - Fee Related CN203430474U (en) | 2013-09-14 | 2013-09-14 | Automatic completion fluid injection control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203430474U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106555562A (en) * | 2015-09-24 | 2017-04-05 | 中国石油化工股份有限公司 | Displacement control homing position type is from grouting blind plate |
-
2013
- 2013-09-14 CN CN201320569117.2U patent/CN203430474U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106555562A (en) * | 2015-09-24 | 2017-04-05 | 中国石油化工股份有限公司 | Displacement control homing position type is from grouting blind plate |
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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: 20140212 Termination date: 20170914 |