CN203685104U - Oil jacket safety protector - Google Patents
Oil jacket safety protector Download PDFInfo
- Publication number
- CN203685104U CN203685104U CN201420015639.2U CN201420015639U CN203685104U CN 203685104 U CN203685104 U CN 203685104U CN 201420015639 U CN201420015639 U CN 201420015639U CN 203685104 U CN203685104 U CN 203685104U
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- CN
- China
- Prior art keywords
- sleeve
- oil jacket
- pushing rod
- enclosed
- well
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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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- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The utility model discloses an oil jacket safety protector which comprises a cylinder structure formed by connecting an upper connector, a center pipe and a lower connector from top to bottom. A body is arranged outside the cylinder structure, a rubber cylinder and a de-setting device acting on the portion below the rubber cylinder are arranged outside the body, the upper end of the body is further connected with a well flushing control device arranged outside the cylinder structure in a sleeved mode, the de-setting device comprises a pushing rod sleeve which is arranged outside the body in a sleeved mode and abuts against the bottom end of the rubber sleeve and an outer sleeve arranged outside the pushing rod sleeve in a sleeved mode, an annulus is formed between the pushing rod sleeve and the outer sleeve, a piston is arranged in the annulus, a clamping ring is arranged in the annulus and above the piston and fixed to a clamping ring fixing sleeve, and the clamping ring is connected with the pushing rod sleeve through a connector. According to the oil jacket safety protector, when pressure leakage of a hydraulic control pipeline occurs by accident in an emergency circumstance, an oil jacket annular channel can be closed, and the requirement that the oil jacket annular channel is opened can be satisfied in the process of well backflushing with a large discharging amount.
Description
Technical field
The utility model relates to oil jacket protection instrument, especially a kind of oil jacket protector.
Background technology
One of marine chengdao oilfield layered water injection process pipe column of triumph is hydraulically-controlled type at present, safeguard protection instrument only has hydraulic control packer and safety valve, and wherein the effect of safety valve is to avoid one of key tool of Marine Pollution ecological environment in order to protect offshore oilfield to occur automatically to close oil pipe space when urgent unexpected liquid controling pipe line pressure release; The effect of hydraulic control packer be between layers effectively packing realize the guarantee instrument of efficient water injection; have advantages of simple to operation; also can play the effect of certain oil jacket annular space protection simultaneously; once but there is the pressure release of emergency liquid controling pipe line; packing element is retracted; just lose the effect to oil jacket safeguard protection, can not meet maritime safety environment protection control requirements completely.
Summary of the invention
The purpose of this utility model is to provide a kind of oil jacket protector, can realize oil jacket annulus access in the time of the unexpected pressure release of emergency liquid controling pipe line and close, the requirement that can meet large discharge capacity anti-flushing well again time, oil jacket annulus access is opened.
In order to reach above-mentioned purpose, the utility model has adopted following technical scheme, a kind of oil jacket protector, comprise from top to bottom by top connection, central tube, the tubular construction that lower contact is formed by connecting, described tubular construction arranged outside has body, the arranged outside of described body has packing element and acts on the seat deblocking device of packing element below, described body upper end also connects the well-flushing control device that is enclosed within equally described tubular construction outside, described seat deblocking device comprises the pushing rod sleeve that is enclosed within body outside and withstands on packing element bottom, be enclosed within the overcoat in pushing rod sleeve outside, between described pushing rod sleeve and overcoat, form annular space, piston is housed in annular space, in annular space and piston above be provided with lock ring, this lock ring is fixed on lock ring fixed cover, described lock ring and pushing rod sleeve are linked and are connect by gingival cyst of mucous gland in the newborn, the described outer inner side, upper end that is enclosed within is temporarily connected and fixed by setting shear pin with pushing rod sleeve, the described outer inner side, lower end that is enclosed within is temporarily connected and fixed by deblocking shear pin with body.
Between described pushing rod sleeve and overcoat, form annular space, piston be housed in annular space, in annular space and piston below be provided with fixed piston and stop the lock dog that moves down.
Described well-flushing control device comprises sliding sleeve, backwash cover, adapter sleeve, and described sliding sleeve is enclosed within central tube outside, and described backwash cover is enclosed within sliding sleeve outside, and the upper end of described backwash cover is connected in top connection by pipe nipple, and lower end is connected with body by adapter sleeve.
Between described adapter sleeve and sliding sleeve, be spring annular space, this spring annular distance is in-built back-moving spring, and the upper end of described back-moving spring withstands on the inner card platform bottom surface of adapter sleeve, and lower end withstands on body upper end.
Between described backwash cover and top connection, be provided with anti-rotation nail, between described backwash cover and adapter sleeve, be also provided with anti-rotation nail.
The described seat decapsulation side of depositing is provided with the well-flushing servicing unit that is enclosed within equally central tube outside, this well-flushing servicing unit and well-flushing control device are used in conjunction with jointly, described well-flushing servicing unit comprises valve and little spring, described little spring upper end is withstood on and is sat the decapsulation side of depositing by valve, and lower end withstands on lower contact upper surface.
Compared to prior art, the utlity model has following beneficial effect:
For the water injection well that uses hydraulically-controlled type stratified injection water technology, while there is emergency, only can carry out safeguard protection to oil pipe inside.And the use of oil jacket protector is further perfect to hydraulically-controlled type layered water injection process pipe column, occurring after the unexpected pressure release of emergency liquid controling pipe line, oil jacket annular space also can play the effect of safeguard protection, can reach again the requirement of large discharge capacity anti-flushing well simultaneously.
Accompanying drawing explanation
Fig. 1 is the structure chart of a kind of oil jacket protector of the present utility model.
In figure: the 1st, top connection, the 2nd, sliding sleeve, the 3rd, backwash cover, the 4th, anti-rotation nail, the 5th, back-moving spring, the 6th, adapter sleeve, the 7th, body, the 8th, packing element, the 9th, pushing rod sleeve, the 10th, set shear pin, the 11st, lock ring fixed cover, the 12nd, gingival cyst of mucous gland in the newborn button, the 13rd, lock ring, the 14th, overcoat, the 15th, piston, the 16th, lock dog, the 17th, deblocking shear pin, the 18th, valve, the 19th, little spring, the 20th, lower contact.
The specific embodiment
Relevant detailed description of the present utility model and technology contents, coordinate accompanying drawing to be described as follows, but accompanying drawing only provides the use of reference with explanation, is not used for the utility model to be limited.
As shown in Figure 1, a kind of oil jacket protector, comprise from top to bottom by top connection 1, central tube, the tubular construction that lower contact 20 is formed by connecting, described tubular construction arranged outside has body 7, the arranged outside of described body has packing element 8 and acts on the seat deblocking device of packing element below, described body upper end also connects the well-flushing control device that is enclosed within equally described tubular construction outside, described seat deblocking device comprises the pushing rod sleeve 9 that is enclosed within body outside and withstands on packing element bottom, be enclosed within the overcoat 14 in pushing rod sleeve outside, between described pushing rod sleeve and overcoat, form annular space, piston 15 is housed in annular space, in annular space and piston above be provided with lock ring 13, this lock ring is fixed on lock ring fixed cover 11, described lock ring is connected by gingival cyst of mucous gland in the newborn button 12 with pushing rod sleeve, the described outer inner side, upper end that is enclosed within is temporarily connected and fixed by setting shear pin 10 with pushing rod sleeve, the described outer inner side, lower end that is enclosed within is temporarily connected and fixed by deblocking shear pin 17 with body.Between described pushing rod sleeve and overcoat, in annular space and the below of piston is provided with fixed piston and stops the lock dog 16 moving down.
Described well-flushing control device comprises sliding sleeve 2, backwash cover 3, adapter sleeve 6, and described sliding sleeve is enclosed within central tube outside, and described backwash cover is enclosed within sliding sleeve outside, and the upper end of described backwash cover is connected in top connection by pipe nipple, and lower end is connected with body by adapter sleeve.Between described adapter sleeve and sliding sleeve, be spring annular space, this spring annular distance is in-built back-moving spring 5, and the upper end of described back-moving spring withstands on the inner card platform bottom surface of adapter sleeve, and lower end withstands on body upper end.Between described backwash cover and top connection, be provided with anti-rotation nail, between described backwash cover and adapter sleeve, be also provided with anti-rotation nail 4.The described seat decapsulation side of depositing is provided with the well-flushing servicing unit that is enclosed within equally central tube outside, this well-flushing servicing unit and well-flushing control device are used in conjunction with jointly, described well-flushing servicing unit comprises valve 18 and little spring 19, described little spring upper end is withstood on and is sat the decapsulation side of depositing by valve, and lower end withstands on lower contact upper surface.
This instrument according under designing requirement when the precalculated position, down-hole, setting pipeline by ground hydraulic-control suppresses, cut off and set shear pin 10 when reaching when shear pin pressure is cut off in design, promote piston 15 and move backward (effect of lock dog 16 is that fixed piston prevention move forward), piston promotes lock ring 13, lock ring fixed cover 11 and pushing rod sleeve 9 synchronizing moving backward, squeeze packing element 8, complete and set, owing to being connected by gingival cyst of mucous gland in the newborn button 12 between lock ring and pushing rod sleeve, therefore liquid controling pipe line pressure release can not make lock ring retreat yet, and still plays the effect of annular space security seal; Afterburning upper lifting pipe post, reaches when pressure is cut off in design and cuts off deblocking shear pin 17, and overcoat 14 moves down, until shift out lock ring, the gingival cyst of mucous gland in the newborn between lock ring and pushing rod sleeve links to connect and loses the active force of mutually biting, and stretching packing element completes deblocking, proposes tubing string.Well-flushing part is to suppress by ground hydraulic-control well-flushing pipeline, sliding sleeve 2 moves down, until interior well washing hole overlaps with outer well washing hole, along with entering well-flushing passage, flushing fluid builds the pressure, in the time reaching valve 18 opening pressure, valve is opened and is carried out clean-out service, after clean-out service completes, liquid controling pipe line pressure release, in under the effect of back-moving spring 5, well washing hole and outer well washing hole stagger, close well-flushing passage, valve is closed under the effect of little spring 19, dual spring has guaranteed that well-flushing passage does not fit badly the generation of truth condition because of the existence of impurity or the variation of oil jacket pressure reduction, the needs that maritime safety environmental protection is produced are met.
The foregoing is only preferred embodiment of the present utility model, non-in order to limit the scope of the claims of the present utility model, other use the equivalence of patent spirit of the present utility model to change, and all should all belong to the scope of the claims of the present utility model.
Claims (6)
1. an oil jacket protector, comprise from top to bottom by top connection, central tube, the tubular construction that lower contact is formed by connecting, described tubular construction arranged outside has body, the arranged outside of described body has packing element and acts on the seat deblocking device of packing element below, described body upper end also connects the well-flushing control device that is enclosed within equally described tubular construction outside, it is characterized in that, described seat deblocking device comprises the pushing rod sleeve that is enclosed within body outside and withstands on packing element bottom, be enclosed within the overcoat in pushing rod sleeve outside, between described pushing rod sleeve and overcoat, form annular space, piston is housed in annular space, in annular space and piston above be provided with lock ring, this lock ring is fixed on lock ring fixed cover, described lock ring and pushing rod sleeve are linked and are connect by gingival cyst of mucous gland in the newborn, the described outer inner side, upper end that is enclosed within is temporarily connected and fixed by setting shear pin with pushing rod sleeve, the described outer inner side, lower end that is enclosed within is temporarily connected and fixed by deblocking shear pin with body.
2. a kind of oil jacket protector according to claim 1, is characterized in that, between described pushing rod sleeve and overcoat, forms annular space, and piston is housed in annular space, in annular space and piston below be provided with fixed piston and stop the lock dog that moves down.
3. a kind of oil jacket protector according to claim 1; it is characterized in that; described well-flushing control device comprises sliding sleeve, backwash cover, adapter sleeve; described sliding sleeve is enclosed within central tube outside; described backwash cover is enclosed within sliding sleeve outside; the upper end of described backwash cover is connected in top connection by pipe nipple, and lower end is connected with body by adapter sleeve.
4. a kind of oil jacket protector according to claim 3; it is characterized in that, be spring annular space between described adapter sleeve and sliding sleeve, and this spring annular distance is in-built back-moving spring; the upper end of described back-moving spring withstands on the inner card platform bottom surface of adapter sleeve, and lower end withstands on body upper end.
5. a kind of oil jacket protector according to claim 3, is characterized in that, is provided with anti-rotation nail between described backwash cover and top connection, is also provided with anti-rotation nail between described backwash cover and adapter sleeve.
6. a kind of oil jacket protector according to claim 1; it is characterized in that; the described seat decapsulation side of depositing is provided with the well-flushing servicing unit that is enclosed within equally central tube outside; this well-flushing servicing unit and well-flushing control device are used in conjunction with jointly; described well-flushing servicing unit comprises valve and little spring; described little spring upper end is withstood on and is sat the decapsulation side of depositing by valve, and lower end withstands on lower contact upper surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420015639.2U CN203685104U (en) | 2014-01-11 | 2014-01-11 | Oil jacket safety protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420015639.2U CN203685104U (en) | 2014-01-11 | 2014-01-11 | Oil jacket safety protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203685104U true CN203685104U (en) | 2014-07-02 |
Family
ID=51007023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420015639.2U Expired - Fee Related CN203685104U (en) | 2014-01-11 | 2014-01-11 | Oil jacket safety protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203685104U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107916910A (en) * | 2016-10-10 | 2018-04-17 | 中国石油化工股份有限公司 | Independent hydraulic control packer pressure valve |
| CN111075385A (en) * | 2018-10-22 | 2020-04-28 | 中国石油化工股份有限公司 | Single-pipe double-control safe well-flushing packer |
-
2014
- 2014-01-11 CN CN201420015639.2U patent/CN203685104U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107916910A (en) * | 2016-10-10 | 2018-04-17 | 中国石油化工股份有限公司 | Independent hydraulic control packer pressure valve |
| CN111075385A (en) * | 2018-10-22 | 2020-04-28 | 中国石油化工股份有限公司 | Single-pipe double-control safe well-flushing packer |
| CN111075385B (en) * | 2018-10-22 | 2022-01-25 | 中国石油化工股份有限公司 | Single-pipe double-control safe well-flushing packer |
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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: 20140702 Termination date: 20170111 |