CN203248113U - Anti-spraying safety well opening device - Google Patents
Anti-spraying safety well opening device Download PDFInfo
- Publication number
- CN203248113U CN203248113U CN 201320258034 CN201320258034U CN203248113U CN 203248113 U CN203248113 U CN 203248113U CN 201320258034 CN201320258034 CN 201320258034 CN 201320258034 U CN201320258034 U CN 201320258034U CN 203248113 U CN203248113 U CN 203248113U
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- spraying
- well
- oil
- blowout prevention
- well opening
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Abstract
The utility model relates to an anti-spraying safety well opening device. When pump inspection maintenance is carried out on an oil well puling-out pipe column, crude oil can be splashed to everywhere if a single oil pipe is disassembled, therefore, the resource waste and the environmental pollution can be caused, and fire hazards and losses of life and personal injury can be easily caused. The anti-spraying safety well opening device is provided with an anti-spraying well opening body, a hopper body is connected to the upper portion of the anti-spraying well opening body, a lead screw is arranged in the middle of the anti-spraying well opening body, and the lower portion of the anti-spraying well opening body is connected with a sleeve short section. The hopper body is cylindrical, a hopper cover with an upper opening is arranged at the periphery of the hopper body, an anti-splashing current plate is arranged in the hopper cover, and a liquid returning hole is formed in the position, located below the anti-splashing current plate, of the lateral wall of the hopper body. A spraying opening is formed in the sleeve short section. According to the anti-spraying safety well opening device, the crude oil in the oil pipe cannot be splashed and leaked to the periphery of a well opening. The anti-spraying safety well opening device can be matched with an efficient plugging pressure relief device of the oil pipe for use to enable the non-pressure-carrying liquid in the oil pipe to completely flow back to a well. Meanwhile, when the well is repaired, if oil sleeve annular oil spaying happens, in-time plugging can be carried out, the well repairing operation environment can be improved, and the resource waste and the environmental pollution can be avoided.
Description
Technical field
The utility model belongs to the oilfield exploitation field of mechanical technique, is specifically related to a kind of blowout prevention safety access of tunnel device.
Background technology
Mechanical oil production model is the most widely mode of production of present each Oilfield using.The oil field computer collecting system is after normally producing the regular period continuously, and oil well often needs to propose tubing string and examines the pump maintenance; Oil well is owing to the reason of bar, pipe or pump can not normal need be carried out workover treatment.Workover treatment mode according to present is prone to following problem in the operation: one, flow string string bottom is not caused and has been full of liquid in the oil pipe because drainage device is installed, and causes oil pipe to unload that crude oil splashes when single everywhere; Because of the disconnected bar of sucker rod or dropout ineffective the failing of bleeder opened when two, drainage device being installed, also can cause the crude oil splash when single in oil discharge pipe; Three, carry in the process at oil pipe, because bottom pressure is higher, liquid can upwards spray well head often in the oil pipe, and crude oil can spray from the oil jacket annular space sometimes.Liquid flows out in a large number in the well, has not only caused the wasting of resources and environment pollution, and causes easily the accident of fire and casualties and equipment damage, affects the safety of operation.For this kind situation, in the workover treatment in the urgent need to a kind of blowout preventer borehole apparatus that can solve crude oil splash problem.
Summary of the invention
The purpose of this utility model provides a kind of blowout prevention safety access of tunnel device, and the oil pipe inner fluid is injected in around the well head when avoiding loading and unloading single oil pipe in the well workover work progress.
The technical scheme that the utility model adopts is:
A kind of blowout prevention safety access of tunnel device is characterized in that:
Described blowout prevention safety access of tunnel device is provided with the Blowout prevention wellhead body, and Blowout prevention wellhead body top is connected with funnel body, and the middle part is provided with screw mandrel, and the bottom is connected with casing nipple;
Described funnel body is cylindrical shape, and ring week is provided with the funnel cover of upper opening, is provided with the splashproof cowling panel in the funnel cover, and the funnel body sidewall is positioned at the following position of splashproof cowling panel and offers hole for back flow;
Offer spout on the described casing nipple.
One end of described screw mandrel approaching device axis is connected with silk braid, and the silk braid end is provided with the sealing semicircle;
Screw mandrel passes and two hold cap and twoly hold the bearing of cap both sides, and the other end is provided with hexagonal cap, offer for precession on the hexagonal cap or screw out the large lock pin of screw mandrel, the bearing both sides with pair hold the position that cap contacts back-up ring be installed.
Described casing nipple lower end connects well head joint hoop.
Described funnel cover outer wall is provided with drop handle.
Described funnel body top is provided with the handling instrument hole.
The utlity model has following advantage:
The utility model can make crude oil in oil pipe no longer spray to leak to well head, be used with the efficient shutoff pressure relief device of oil pipe, can make and not be with the press liquid total reflux in the oil pipe to well, if in time shutoff of oil jacket annular space oil spout occurs during simultaneously well workover, improved the workover treatment environment, avoid the wasting of resources and environment pollution, effectively eliminated the threat of fire or personnel casualty accidents and equipment damage.
Description of drawings
Fig. 1 is the utility model structural representation.
Among the figure, 1-handling instrument hole, 2-funnel body, 3-drop handle, 4-splashproof cowling panel, 5-funnel cover, 6-hole for back flow, 7-Blowout prevention wellhead body, 8-back-up ring, the two caps that hold of 9-, the 10-hexagonal cap, 11-seals semicircle, 12-silk braid, the 13-screw mandrel, 14-bearing, the large lock pin of 15-, the 16-spout, 17-casing nipple, 18-well head joint hoop.
The specific embodiment
Below in conjunction with the specific embodiment the utility model is described in detail.
A kind of blowout prevention safety access of tunnel device described in the utility model is provided with Blowout prevention wellhead body 7, and Blowout prevention wellhead body 7 tops are connected with funnel body 2, and the middle part is provided with screw mandrel 13, and the bottom is connected with casing nipple 17, and casing nipple 17 lower ends connect well head joint hoop 18.Funnel body 2 is cylindrical shape, and ring week is provided with the funnel cover 5 of upper opening, is provided with splashproof cowling panel 4 in the funnel cover 5, and funnel body 2 sidewalls are positioned at the position of splashproof cowling panel below 4 and offer hole for back flow 6.Offer spout 16 on the casing nipple 17.
One end of screw mandrel 13 approaching device axis is connected with silk braid 12, and silk braid 12 ends are provided with sealing semicircle 11; Screw mandrel 13 passes and two hold cap 9 and twoly hold the bearing 14 of cap 9 both sides, and the other end is provided with hexagonal cap 10, offer for precession on the hexagonal cap 10 or screw out the large lock pin 15 of screw mandrel 13, bearing 14 both sides with pair hold the position that cap 9 contacts back-up ring 8 be installed.This part-structure is symmetrical set, and screws simultaneously hexagonal cap 10, and two sealing semicircles 11 of screw mandrel 13 1 ends are closed gradually, can hold oil pipe tightly, thus shutoff oil jacket annular space.
Funnel cover 5 outer walls are provided with drop handle 3, are used for guiding and supporting whole device.Funnel body 2 tops are provided with handling instrument hole 1, and this structure can make this blowout prevention safety access of tunnel and the well maintenance vehicle hook that hoists be connected, and makes things convenient for installation and removal.
Be not opened when namely carrying out well workover upper lifting pipe post when running into flow string lower end bleeder, liquid is in full state in the oil pipe of oil well pump top, the differential pressure action of fluid column in the oil pipe unloading when single owing to can make the crude oil that exists in the oil pipe cause strong injection in the process that flows out oil pipe.At this moment, the shaft mouth operation personnel should at first install the blowout prevention safety access of tunnel after laying down well head, unload the crude oil that flows out in the oil pipe when single in order to collect.During installation blowout prevention safety access of tunnel integral body is placed on the well head joint hoop 18, screws, make well head joint hoop 18 screw threads be connected screw thread with pipe nipple and closely connect.Can steadily play flowline after the installation and unload singlely, whenever unload next root oil pipe, intraluminal fluid is known from experience and is all flow in the funnel body 2, and liquid can be avoided sputtering outside the funnel by splashproof finishing plate 4 time, then flows back in the well via the oil jacket annular space by hole for back flow 6.When the recovered oil liquid in pipe, sealing semicircle 11 is in open mode, and spout 16 is in closed condition.
In running into owing to liquid in the oil pipe, contain a large amount of gases, so that when substantial oil is injected into around the well head from oil pipe upper end when dismantling tubing string, the efficient shutoff pressure relief device of oil pipe (application number is called " the efficient shutoff pressure relief device of a kind of oil pipe " for " 201320175980X ", name) can be installed be used with this blowout prevention safety access of tunnel.The efficient shutoff pressure relief device of oil pipe at first correctly is installed and is connected relief line to spout 16, open spout 16 is closed sealing semicircle 11 Seal Oil cover annular space; Then open the pressure relief device of the efficient shutoff pressure relief device of oil pipe, release also makes crude oil reclaim in the well from spout 16.After open flow finishes, remove oil pipe shutoff pressure relief device, close spout 16, open sealing semicircle 11, continued flowline.
In when, in the construction sleeve pipe oil spout occuring when, should stop to lift by crane the oil pipe operation, the rotation hexagonal cap 10(left and right sides screws simultaneously), sealing semicircle 11 is combined closely with oil pipe, the oil jacket annular space is blocked.Thereupon, spout 16 being opened (preset in advance flows oil level well and puts) is released annular pressure.
After construction finishes, unload this device.
It is cited that content of the present utility model is not limited to embodiment, and the conversion of any equivalence that those of ordinary skills take technical solutions of the utility model by reading the utility model manual is claim of the present utility model and contains.
Claims (5)
1. blowout prevention safety access of tunnel device is characterized in that:
Described blowout prevention safety access of tunnel device is provided with Blowout prevention wellhead body (7), and Blowout prevention wellhead body (7) top is connected with funnel body (2), and the middle part is provided with screw mandrel (13), and the bottom is connected with casing nipple (17);
Described funnel body (2) is cylindrical shape, ring week is provided with the funnel cover (5) of upper opening, be provided with splashproof cowling panel (4) in the funnel cover (5), funnel body (2) sidewall is positioned at the following position of splashproof cowling panel (4) and offers hole for back flow (6);
Offer spout (16) on the described casing nipple (17).
2. a kind of blowout prevention safety access of tunnel device according to claim 1 is characterized in that:
One end of described screw mandrel (13) approaching device axis is connected with silk braid (12), and silk braid (12) end is provided with sealing semicircle (11);
Screw mandrel (13) passes two cap (9) and two bearings (14) of cap (9) both sides that hold of holding, the other end is provided with hexagonal cap (10), offer for precession on the hexagonal cap (10) or screw out the large lock pin (15) of screw mandrel (13), bearing (14) both sides with pair hold the position that cap (9) contacts back-up ring (8) be installed.
3. a kind of blowout prevention safety access of tunnel device according to claim 1 and 2 is characterized in that:
Described casing nipple (17) lower end connects well head joint hoop (18).
4. a kind of blowout prevention safety access of tunnel device according to claim 3 is characterized in that:
Described funnel cover (5) outer wall is provided with drop handle (3).
5. a kind of blowout prevention safety access of tunnel device according to claim 4 is characterized in that:
Described funnel body (2) top is provided with handling instrument hole (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320258034 CN203248113U (en) | 2013-05-14 | 2013-05-14 | Anti-spraying safety well opening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320258034 CN203248113U (en) | 2013-05-14 | 2013-05-14 | Anti-spraying safety well opening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203248113U true CN203248113U (en) | 2013-10-23 |
Family
ID=49374559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320258034 Expired - Fee Related CN203248113U (en) | 2013-05-14 | 2013-05-14 | Anti-spraying safety well opening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203248113U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806191A (en) * | 2015-04-29 | 2015-07-29 | 牡丹江市新翔石油机械有限责任公司 | Environment-friendly liquid collecting electronic control operation platform |
| CN111058791A (en) * | 2019-12-18 | 2020-04-24 | 西安狮龙石油设备监理技术有限公司 | Oil well wellhead blowout preventer and system |
-
2013
- 2013-05-14 CN CN 201320258034 patent/CN203248113U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806191A (en) * | 2015-04-29 | 2015-07-29 | 牡丹江市新翔石油机械有限责任公司 | Environment-friendly liquid collecting electronic control operation platform |
| CN104806191B (en) * | 2015-04-29 | 2017-11-03 | 牡丹江市新翔石油机械有限责任公司 | Environmentally friendly liquid collecting electronic control operating floor |
| CN111058791A (en) * | 2019-12-18 | 2020-04-24 | 西安狮龙石油设备监理技术有限公司 | Oil well wellhead blowout preventer and system |
| CN111058791B (en) * | 2019-12-18 | 2022-03-22 | 西安狮龙石油设备监理技术有限公司 | Oil well wellhead blowout preventer and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131023 Termination date: 20140514 |