CN2448915Y - Blow-resistant hanging device for sucker rod - Google Patents
Blow-resistant hanging device for sucker rod Download PDFInfo
- Publication number
- CN2448915Y CN2448915Y CN 00238654 CN00238654U CN2448915Y CN 2448915 Y CN2448915 Y CN 2448915Y CN 00238654 CN00238654 CN 00238654 CN 00238654 U CN00238654 U CN 00238654U CN 2448915 Y CN2448915 Y CN 2448915Y
- Authority
- CN
- China
- Prior art keywords
- sucker rod
- screw thread
- hanger
- blowout prevention
- blowout
- 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 - Fee Related
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Abstract
The utility model discloses a blowout prevention suspension device of a sucker rod for the workover treatment of an oil field, which is composed of a suspension part and a buckle part which are processed as the integration. When the forerunner of the blowout is discovered, the device can be arranged into the suspension device for an oil pipe of a well head after the sucker rod in a well is connected so as to rapidly install an oil production tree or a blowout prevention gate in the next, and the operation of washing the well is conducted. The fussy procedure of the existing blowout prevention operation is changed so as to win valuable time for preventing and controlling well blowout. The utility model avoids the occurrence of heavy losses, such as the falling of the sucker rod, fire hazard, personal casualty, etc.
Description
The utility model relates to the sucker rod blowout prevention hanger that prevents blowout in a kind of oil well repairing operation.
Blowout is an accident common in the oil field operation, and serious can damage the oil well casing programme, engulfs wellhead equipment, causes fire incident, cause casualties, and contaminated environment, waste and breaking-up petroleum resources, very harmful.Therefore, must organize manpower to rescue immediately in case find the blowout omen, the time is the most valuable, rescues more early, and timely more, it is more little to cause damage.In the past, in playing the process of lower sucker rod, if when finding well head oil spout or blowout omen, want first upside-down mounting production tree, play polished rod again, dress rubber gate and blowout prevention box just can carry out well-flushing, kill-job, complicated operation, labour intensity is big, and the time is long, often because of causing the sucker rod well accident that falls it is pressed for time, even, cause even more serious property personal casualty loss because waste time and blowout takes place.
The purpose of this utility model provides a kind of simple in structure, practical sucker rod blowout prevention hanger.Can install production tree or blowout preventer in the short period of time, and can carry out next step well-flushing, kill-job operation smoothly, thoroughly control blowout, avoid the sucker rod well that falls, the generation of heavy losses such as fire casualties.
Be to realize that the purpose of this utility model, this sucker rod blowout prevention hanger are by in the same suspended portion that processes on the whole, screw thread partly constitutes up and down.Suspended portion cylindrical maximum gauge is slightly less than the boll-weevil hanger that matches with it or the internal diameter of tubing coupling, and greater than pipe aperture, and after the axial length at its maximum gauge place all is screwed into oil pipe less than boll-weevil hanger or tubing coupling two ends, the distance of two oil pipe end faces.The diameter at other position of suspended portion is all less than pipe aperture.So whole sucker rod blowout prevention hanger can be sitting on the boll-weevil hanger or the oil pipe end face in the tubing coupling of well head, the top of boll-weevil hanger or tubing coupling can connect tubing nipple and other device again, can not cause leakage because of colliding with hanger.
Described suspended portion has tank parallel with axis and that communicate up and down, load onto sucker rod blowout prevention hanger in the tubing hanger after, flushing fluid and well killing fluid can carry out well-flushing and kill-job by tank.There is the external screw thread of protrusion at this hanger two ends, and the bottom screw thread partly is used for connecting the rod string in the well, and the top screw thread partly is used for handling and has connected the sucker rod blowout prevention hanger of rod string.
As improvement of the present utility model, the external screw thread of described screw thread part changes the internal thread that is positioned at suspended portion inside into.
After adopting said structure, when finding the blowout omen, this hanger bottom connects in the well head boll-weevil hanger of packing into behind the rod string in the well, and the top blowout prevention gate that just can directly adorn production tree or blowout preventer and band tubing nipple of boll-weevil hanger is controlled the expansion of blowout.And can carry out well-flushing, kill-job operation at any time, thoroughly subdue blowout.Efficiency far is higher than operation in the past.This device can also be applied in the operations such as pressure testing that rise at ordinary times in the lower sucker rod process, and is very convenient.
Below in conjunction with drawings and embodiments the utility model is described in further detail.
Fig. 1 is the longitudinal section of the operating position of this sucker rod blowout prevention hanger in the well head boll-weevil hanger, shows the utility model a kind of working method commonly used.
Fig. 2 is the front view of a kind of specific embodiment of the present utility model.
Fig. 3 is the vertical view of sucker rod blowout prevention hanger shown in Figure 2.
Fig. 4 is the longitudinal section of the another kind of specific embodiment of the present utility model.
Fig. 5 is the vertical view of sucker rod blowout prevention hanger shown in Figure 4.
Can see by Fig. 1, when finding the blowout omen, the bottom screw thread part 3 of sucker rod blowout prevention hanger is screwed in the box cupling 5 of the rod string 6 in the well, on top screw thread part 2, connect the sucker rod lifting sub again, after slinging, put into 8 li of boll-weevil hangers that are fixed on well head four-way junction of casing 7, suspended portion 1 is sitting on the end face of oil pipe 9, rod string 6 is suspended in the tubing string 9, after shedding the sucker rod lifting sub flange of lower flange of production tree 10 and well head four-way junction of casing 7 is fixed with screw 11, shut valve 12, whole tubing string 9 and sleeve pipe 13 inside have just formed a high voltage bearing enclosure space, can control the expansion of blowout fully, shorten the time of control blowout greatly.After equipments such as cementing truck arrive in, utilize valve and the tank 4 on the sucker rod blowout prevention hanger on the production tree to carry out well-flushing and kill-job operation, make flushing fluid or well killing fluid inject thoroughly uniform blowouts of tubing strings 9 by tank 4.
Fig. 4, shown in Figure 5 be the another kind of specific embodiment of the present utility model.Change original screw thread part into be recessed into suspended portion 1 inside internal thread by original external screw thread, reduced the axial length of this hanger like this, reduced diameter variation again, further improved intensity.
Simultaneously, described tank 4 adopts U type cross section, and the circular arc of bottom can have maximum intensity again when guaranteeing the maximum flow area, and easy to process.Can certainly adopt direct brill circular hole or mill out square or the tank of other cross sectional shape, such conversion all drops within the protection domain of the present utility model.
Claims (5)
1, prevents the sucker rod blowout prevention hanger of blowout in a kind of oil well repairing operation, it is characterized in that: it has a plurality of tanks parallel with axis (4) by the suspended portion (1) of processing on one and the screw thread part (2) and screw thread part (3) formation at two ends on suspended portion (1) cylindrical.
2, according to the described sucker rod blowout prevention of claim 1 hanger, it is characterized in that: described screw thread part (2) and the external screw thread of screw thread part (3) for protruding.
3, according to the described sucker rod blowout prevention of claim 1 hanger, it is characterized in that: described screw thread part (2) and screw thread part (3) are recessed internal thread.
4, according to any one described sucker rod blowout prevention hanger in the claim 1 to 3, it is characterized in that: the maximum gauge of suspended portion (1) is less than the tubing coupling internal diameter, and greater than pipe aperture, the axial length at maximum gauge place connects the distance of two oil pipe end faces behind the oil pipe less than the box cupling two ends, and the diameter at all the other positions of suspended portion (1) is all less than pipe aperture.
5, according to any one described sucker rod blowout prevention hanger in the claim 1 to 4, it is characterized in that: the section type shape of described tank (4) is that the bottom is the U type of semicircle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00238654 CN2448915Y (en) | 2000-06-26 | 2000-06-26 | Blow-resistant hanging device for sucker rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00238654 CN2448915Y (en) | 2000-06-26 | 2000-06-26 | Blow-resistant hanging device for sucker rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2448915Y true CN2448915Y (en) | 2001-09-19 |
Family
ID=33599670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00238654 Expired - Fee Related CN2448915Y (en) | 2000-06-26 | 2000-06-26 | Blow-resistant hanging device for sucker rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2448915Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767345A (en) * | 2012-07-25 | 2012-11-07 | 胜利油田东胜精攻石油开发集团股份有限公司 | Multifunctional sucker rod hanging blowout preventer |
| CN106089125A (en) * | 2016-04-27 | 2016-11-09 | 中国石油化工股份有限公司 | Sucker rod suspension device |
| CN110043213A (en) * | 2019-04-12 | 2019-07-23 | 中国石油天然气股份有限公司 | A kind of sucker rod well-head protective device |
-
2000
- 2000-06-26 CN CN 00238654 patent/CN2448915Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767345A (en) * | 2012-07-25 | 2012-11-07 | 胜利油田东胜精攻石油开发集团股份有限公司 | Multifunctional sucker rod hanging blowout preventer |
| CN106089125A (en) * | 2016-04-27 | 2016-11-09 | 中国石油化工股份有限公司 | Sucker rod suspension device |
| CN106089125B (en) * | 2016-04-27 | 2019-01-04 | 中国石油化工股份有限公司 | Sucker rod suspension device |
| CN110043213A (en) * | 2019-04-12 | 2019-07-23 | 中国石油天然气股份有限公司 | A kind of sucker rod well-head protective device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |