CN203655238U - Hydraulic opening and closing tool for deepwater oil well - Google Patents
Hydraulic opening and closing tool for deepwater oil well Download PDFInfo
- Publication number
- CN203655238U CN203655238U CN201320825695.8U CN201320825695U CN203655238U CN 203655238 U CN203655238 U CN 203655238U CN 201320825695 U CN201320825695 U CN 201320825695U CN 203655238 U CN203655238 U CN 203655238U
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- CN
- China
- Prior art keywords
- mandrel
- oil well
- pressure transmission
- spring
- lock dog
- 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
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- 239000003129 oil well Substances 0.000 title claims abstract description 19
- 230000005540 biological transmission Effects 0.000 claims abstract description 26
- 239000012530 fluid Substances 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 238000005516 engineering process Methods 0.000 abstract description 2
- 241000282472 Canis lupus familiaris Species 0.000 description 19
- 230000007812 deficiency Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The utility model provides a hydraulic opening and closing tool for a deepwater oil well. The hydraulic opening and closing tool comprises a mandrel, a locking piece, a spring piece, a pressure transmission sleeve, a spring and a lower connector. The mandrel is connected with the lower connector. The locking piece, the spring piece, the pressure transmission sleeve and the spring are arranged on the portion, above the lower connector, of the mandrel in sequence. The locking piece is hidden in the pressure transmission sleeve so that the locking piece can be prevented from being worn and being blocked when the opening and closing tool is conveyed into the deepwater oil well; unlimited opening and closing of a sliding sleeve in the deepwater oil well can be achieved; when the sliding sleeve can not be opened and closed normally, the tool can bear heavy load, and the heavy load can be released through pressure relief; the tool can be used in cooperation with a coiled tubing to achieve quick operation; the tool is convenient and reliable to operate and can control opening and closing motion of the sliding sleeve just by being dropped to a preset position to carry out hydraulic pressing; the hydraulic opening and closing tool is free of signal misjudgment, convenient to construct on site and widely applied to the oil exploitation downhole operation technology.
Description
Technical field
The utility model relates to oil exploitation downhole tool, is specifically related to a kind of deep water oil well fluid power switching tools.
Background technology
At present, the sliding sleeve switch instrument using in oil exploitation completion practice, is generally mechanical switch formula structure.Chinese patent CN102966332A, on March 13 2013 publication date, discloses " a kind of sliding sleeve switch instrument ".Its structure is mainly made up of several groups of lock dogs of installing on mandrel, and the lock dog Compress Spring that inner portion installs that resets provides strength.The switching tools of this structure is that effect has been brought into play in oil underground work, but it exists following shortcoming or deficiency simultaneously: the lock dog of (1) switching tools is all the time in supported state, its external diameter is tubing string maximum outside diameter, implement in engineering in operation easy to wear, cannot normal switch sliding sleeve; (2) be not suitable for multistage sliding sleeve switch; (3) the safe shear pin of mechanical switch instrument, only can provide the less power of closing; (4) when lock dog is hampered in the time crossing casing coupling, easily cause operation erroneous judgement, have potential safety hazard.
Summary of the invention
The purpose of this utility model is to provide a kind of deep water oil well fluid power switching tools, adopt the combining structure of mandrel, pressure transmission cover, filling sliding sleeve, sealing drum and sliding sleeve switch etc., the lock dog card of meeting not easy to wear, difficult in multistage sliding sleeve operation process, can bear large service load, be useful in the multistage sliding sleeve switch operation of deep water oil well, effectively overcome or avoid the shortcoming or the deficiency that in above-mentioned prior art, exist.
Deep water oil well fluid power switching tools described in the utility model, comprises mandrel, lock dog, spring leaf, pressure transmission cover, spring, lower contact.Described mandrel is connected with lower contact, and mandrel more than lower contact is provided with lock dog, spring leaf, pressure transmission cover and spring outward in turn.
Wherein, the top of described mandrel is provided with outer groove, and middle part is provided with outer shroud platform, and O type circle is installed on this outer shroud platform, and outer shroud platform has pressure transmission hole, under this pressure transmission hole, spring is installed.Described lock dog is the groove shape structure of 3-6 piece, is installed in the outer groove of mandrel.A spring leaf is installed in each groove of described lock dog.The middle part of described lock dog is provided with exterior notch.Described pressure transmission cover middle part is provided with interior ring platform, is positioned at the lower end of mandrel outer shroud platform, and O type circle is installed on it, matches with the outer shroud platform of mandrel and the bottom of lock dog in the top of pressure transmission cover, matches with lower contact in bottom.Described spring fitting is in the annular space of upper end, pressure transmission cover and the mandrel of lower contact.
The utility model has the following advantages compared with prior art:
1, lock dog is hidden in pressure transmission cover, can prevent that switching tools is hampered transferring to when causing lock dog wearing and tearing in the oil well of deep-sea and going into the well.
2, in down-hole, can realize infinite stages sliding sleeve switch especially in the oil well of deep-sea.
3, in the time that sliding sleeve cannot normal switch, can carry large load, release can discharge.
4, matching is strong, can coordinate coiled tubing, realizes sharp work.
5, convenient and reliable operation, only need transfer to design attitude by the present invention, and fluid power is suppressed, and can control opening and closing motion of sliding sleeve switch.
6, without erroneous judgement signal, site operation is convenient and safe, and efficiency is high.
Brief description of the drawings
Fig. 1 is a kind of example structure schematic diagram of the present utility model;
Fig. 2 is the structural representation during by on-the-spot utilization shown in Fig. 1.
Detailed description of the invention
Consult Fig. 1-Fig. 2, a kind of deep water oil well fluid power switching tools, comprises mandrel 1, lock dog 2, spring leaf 3, pressure transmission cover 6, spring 7, lower contact 8.Mandrel 1 is connected with lower contact 8, outer lock dog 2, spring leaf 3, pressure transmission cover 6 and the spring 7 of being provided with in turn of more than 8 mandrel 1 of lower contact.
The top of mandrel 1 is provided with outer groove, and middle part is provided with outer shroud platform, and O type circle 4 is installed on this outer shroud platform, and outer shroud platform has pressure transmission hole 5, and this pressure transmission hole is provided with spring 75 times.Lock dog 2 is 3-6 piece, is expressed as the groove shape structure of 3 in figure, is installed in the outer groove of mandrel 1.A spring leaf 3 is installed in each groove of lock dog 2.The middle part of lock dog 2 is provided with exterior notch.Pressure transmission is overlapped 6 middle parts and is provided with interior ring platform, is positioned at the lower end of mandrel 1 outer shroud platform, and O type circle 4 is installed on it, matches with the outer shroud platform of mandrel 1 and the bottom of lock dog 2 in the top of pressure transmission cover 6, matches with lower contact 8 in bottom.Spring 7 is installed in the annular space of upper end, pressure transmission cover 6 and mandrel 1 of lower contact 8.
Claims (7)
1. a deep water oil well fluid power switching tools, comprise mandrel, lock dog, spring leaf, pressure transmission cover, spring, lower contact, it is characterized in that described mandrel is connected with lower contact, mandrel more than lower contact is provided with lock dog, spring leaf, pressure transmission cover and spring outward in turn.
2. deep water oil well fluid power switching tools according to claim 1, is characterized in that the top of described mandrel is provided with outer groove, and middle part is provided with outer shroud platform, and O type circle is installed on this outer shroud platform, and outer shroud platform has pressure transmission hole, under this pressure transmission hole, spring is installed.
3. deep water oil well fluid power switching tools according to claim 1, is characterized in that described lock dog is the groove shape structure of 3-6 piece, is installed in the outer groove of mandrel.
4. according to the deep water oil well fluid power switching tools described in claim 1 or 3, it is characterized in that, in each groove of described lock dog, a spring leaf is installed.
5. deep water oil well fluid power switching tools according to claim 4, is characterized in that the middle part of described lock dog is provided with exterior notch.
6. deep water oil well fluid power switching tools according to claim 1, it is characterized in that described pressure transmission cover middle part is provided with interior ring platform, be positioned at the lower end of mandrel outer shroud platform, O type circle is installed on it, matching with the outer shroud platform of mandrel and the bottom of lock dog in the top of pressure transmission cover, matches with lower contact in bottom.
7. deep water oil well fluid power switching tools according to claim 1, is characterized in that described spring fitting is in the annular space of upper end, pressure transmission cover and the mandrel of lower contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320825695.8U CN203655238U (en) | 2013-12-16 | 2013-12-16 | Hydraulic opening and closing tool for deepwater oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320825695.8U CN203655238U (en) | 2013-12-16 | 2013-12-16 | Hydraulic opening and closing tool for deepwater oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203655238U true CN203655238U (en) | 2014-06-18 |
Family
ID=50921638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320825695.8U Expired - Lifetime CN203655238U (en) | 2013-12-16 | 2013-12-16 | Hydraulic opening and closing tool for deepwater oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203655238U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711456A (en) * | 2013-12-16 | 2014-04-09 | 东营市福利德石油科技开发有限责任公司 | Hydraulic switching tool for deep-water oil well |
-
2013
- 2013-12-16 CN CN201320825695.8U patent/CN203655238U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711456A (en) * | 2013-12-16 | 2014-04-09 | 东营市福利德石油科技开发有限责任公司 | Hydraulic switching tool for deep-water oil 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: 20140618 |