CN105443065B - Oil well casing blowout prevention alarm - Google Patents
Oil well casing blowout prevention alarm Download PDFInfo
- Publication number
- CN105443065B CN105443065B CN201610004257.3A CN201610004257A CN105443065B CN 105443065 B CN105443065 B CN 105443065B CN 201610004257 A CN201610004257 A CN 201610004257A CN 105443065 B CN105443065 B CN 105443065B
- Authority
- CN
- China
- Prior art keywords
- sealing ring
- hole
- slideway
- spring
- oil well
- 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
Links
- 239000003129 oil well Substances 0.000 title claims abstract description 16
- 230000002265 prevention Effects 0.000 title claims abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 43
- 238000007667 floating Methods 0.000 claims description 2
- 230000017105 transposition Effects 0.000 claims 1
- 239000003921 oil Substances 0.000 description 18
- 239000010779 crude oil Substances 0.000 description 8
- 239000007788 liquid Substances 0.000 description 6
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B2200/00—Special features related to earth drilling for obtaining oil, gas or water
- E21B2200/01—Sealings characterised by their shape
Abstract
A kind of oil well casing blowout prevention alarm.Oil well casing blowout prevention alarm includes pipe main body, described pipe body top is provided with upper sealing ring, upper sealing ring is evenly equipped with through hole on axial direction, float is cased with pipe main body below upper sealing ring, float inwall is provided with sliding pin, pipe body outer wall is provided with slideway and slideway is engaged with sliding pin, pipe lower body part is provided with lower sealing ring, oil pipe below lower sealing ring is provided with guide pad, lower sealing ring is evenly equipped with lower through-hole on axial direction, lower through-hole is corresponding with upper through hole, spring is installed in lower through-hole, spring extends to lower through-hole outside and the lower end of spring and extended in the hole of guide pad.The alarm can prevent Wellhead crue oil and be stolen, and do not influence oil well and normally produce.
Description
Technical field：
The present invention relates to oil extraction in oil field technical field, refers in particular to a kind of oil well casing blowout prevention alarm.
Background technology：
At present, it is very universal to steal crude oil phenomenon (especially remote producing well) on each oil field, causes crude oil to be lost in, gives
Oil field production brings influence.Criminal very generally starts with well head.The major way that they steal crude oil is exactly in producing well
Mouth decontrols 250 gates, first, crude oil, which is stolen, causes economic loss, second, the process crude oil for stealing crude oil is scattered on the ground,
Environmental pollution is caused, while also adds labor intensity to worker.In order to prevent that crude oil is stolen, environmental protection, producing well facility
Do not destroyed, safeguard the daily management of oil well.Various forms of anti-theft measures are used for, such as antitheft well head, Anti-theft valve
Door etc., though stolen phenomenon can be suppressed, it can not fundamentally prevent stolen phenomenon.
The content of the invention：
In order to solve technical problem present in background technology, it is an object of the invention to provide a kind of oil well casing blowout prevention to prevent
Steal device.The alarm can prevent Wellhead crue oil and be stolen, avoid economic loss, and do not influence oil well and normally produce.Keep away simultaneously
Exempt from environmental pollution, also reduce the labor intensity of worker.
The purpose of the present invention is realized as follows：Oil well casing blowout prevention alarm includes pipe main body, described pipe
Body top is provided with upper sealing ring, is evenly equipped with through hole on upper sealing ring axial direction, is cased with floating in the pipe main body below upper sealing ring
Son, float inwall are provided with sliding pin, and pipe body outer wall is provided with slideway and slideway is engaged with sliding pin, and pipe lower body part is provided with down close
Seal ring, the oil pipe below lower sealing ring are provided with guide pad, and lower through-hole, lower through-hole and upper through hole are evenly equipped with lower sealing ring axial direction
It is corresponding, spring eye is evenly equipped with lower sealing ring axial direction, spring eye is arranged at intervals with lower through-hole, and spring is provided with spring eye,
Spring extends to spring eye outside and the lower end of spring and extended in the hole of guide pad.
Upper sealing ring outer wall in such scheme is provided with groove and groove is built-in with sealing ring.The lower surface of guide pad is
It is domatic.Slideway is provided with long slideway and short slideway, and sliding pin is shifted one's position in long slideway and short slideway, can change the work of alarm
Make state.
The beneficial effects of the invention are as follows：Because the present invention uses above-mentioned technical proposal, sleeve gate, which is opened, to be prepared to steal
During liquid in oil jacket ring cavity, float floats closing oil jacket ring cavity in the presence of fluid pressure, and the liquid in oil jacket ring cavity is not
It can be stolen, reach antitheft purpose, not influence the normal production of oil well in this case.It is dirty that the crude oil being scattered is avoided simultaneously
Environment is contaminated, reaches the purpose of environmental protection, also reduces the labor intensity of worker.
Brief description of the drawings：
Fig. 1 is the structural representation of anti-theft state of the present invention；
Fig. 2 is the structural representation of connected state of the present invention；
Fig. 3 is the structural representation that the present invention is transformed to anti-theft state by connected state；
Fig. 4 is the structural representation that the present invention suppresses state；
Fig. 5 is the top view of upper sealing ring in Fig. 1；
Fig. 6 is the structural representation of Fig. 1 middle slideway；
Fig. 7 is the sectional view of float in Fig. 1；
Fig. 8 is the cross-sectional view of float in Fig. 1；
Fig. 9 is the top view of lower sealing ring in Fig. 1；
Figure 10 is the top view of guide pad in Fig. 1.
In figure：1- upper sealing rings；The upper through holes of 2-；3- floats；4- pipe main bodys；5- slideways；6- lower sealing rings；7- lower through-holes；
8- springs；9- guide pads；10- sliding pins；11- sealing rings.
Embodiment：
The present invention is further described below in conjunction with the accompanying drawings：
As illustrated, oil well casing blowout prevention alarm includes pipe main body 4, the described top of pipe main body 4 is threaded with
Sealing ring 1, through hole 2 is evenly equipped with the axial direction of upper sealing ring 1, float 3, alarm are cased with the pipe main body 4 of the lower section of upper sealing ring 1
Float 3, which floats, under anti-theft state closes the upper through hole 2 of upper sealing ring 1, and the liquid flow of oil jacket annular space does not go out to reach antitheft
Purpose, the inwall of float 3 is provided with sliding pin 10, and the outer wall of pipe main body 4 is provided with slideway 5 and slideway 5 is engaged with sliding pin 10, in external force
The position slip that lower slide pin 10 can be different in slideway 5 is acted on, the lower thread of pipe main body 4 is connected with lower sealing ring 6, lower sealing
The oil pipe of the lower section of ring 6 is provided with guide pad 9, lower through-hole 7 is evenly equipped with the axial direction of lower sealing ring 6, lower through-hole 7 is relative with upper through hole 8
Should, spring eye is evenly equipped with the axial direction of lower sealing ring 6, spring eye is arranged at intervals with lower through-hole 7, and spring 8, bullet are provided with spring eye
Spring 8 extends to spring eye outside and the lower end of spring 8 and extended in the hole of guide pad 9.
In order that when the application is in antitheft working condition oil jacket annular space seal be more tightly provided with the outer wall of upper sealing ring 1
Groove and groove are built-in with sealing ring 11.Sealing ring 11 is effectively sealed to oil jacket ring cavity.
In order to prevent the application not scratching during going into the well from arriving casing coupling, slope is arranged in the lower surface of guide pad 9
Face, be advantageous to installation safety.
The slideway 5 of the application is provided with long slideway and short slideway, and sliding pin 10 is shifted one's position in long slideway and short slideway, can
The working condition of artificial change alarm.
Compression spring is designed with order to avoid changing the working condition of this product during normal wax removal hot wash, compression spring energy
5-8 MPas of pressure is enough born, and the change of working condition is controlled with this, that is to say, that when upper and lower pressure difference must reach 5-8 million
During pa could compression spring change the working condition of the application, and pressure during general hot wash is at 2 MPas or so, so normal
Under pressure during cleaning, spring can still support float 3 not change the working condition of float 3 without being compressed.
The application is in as shown in Figure 1 during antitheft working condition：Sleeve gate is opened, and under pressure, works as liquid level
When rising at this product, the up upper through hole 2 sealed on upper sealing ring 1 of float 3, oil jacket ring cavity is closed, in oil jacket ring cavity
Liquid will not be stolen, and reach antitheft purpose.Reaching prevents from polluting the purpose that environment event occurs.In antitheft work shape
The position as shown in Figure 1 of sliding pin 10 during state.The application does not influence the production of oil well normal work when being in antitheft working condition.
The application is in upper and lower UNICOM's working condition：When the reasons such as oil pipe internal cause wax deposition are formed, sucker rod is stuck to need operation
When and sleeve pipe in liquid level when rising to this product, when upper sealing ring 1 seals, can not carry out casing gas discharging reduces casing pressure.Enter
During row underground work, need this product to enter UNICOM's working condition up and down and ensure that reducing casing pressure carries out underground work.By shape
Preventing float after state adjustment, UNICOM ensures that operation is smoothed out above and below float from reaching with the sealing of upper sealing ring 1 in sleeve pipe.Change
Working condition operation is as follows：Fetched water with cementing truck into sleeve pipe pressurization, when flow reach 30 sides/when, and up and down pressure difference in 5-8 million
During pa, float compresses support spring and moved down as shown in figure 4, making aisle spare diminish, by 2500 squares under pressure
Millimeter becomes 500 square millimeters, and because aisle spare diminishes so that further rise in pressure, at this moment sliding pin 10 is in deflecting shape
As shown in figure 3, now stop suppressing, sliding pin 10 drives that float 3 is up is in position as shown in Figure 2, makes in this product for state position
Lower connection, to carry out operation in next step.
The application is arranged on first away from well head oil pipe and second oil pipe junction, about 10 meters away from ground or so.Beat
Sleeve pipe emptying gate is opened, such as continuously puts casing gas, big flow is at 20 seconds above is UNICOM's state, such as continuous deflate are no more than 10
Second, gas flow declines quickly, is to be in anti-theft state.
Claims (3)
1. a kind of oil well casing blowout prevention alarm, including pipe main body (4), it is characterised in that：Described pipe main body (4) top is provided with
Upper sealing ring (1), is evenly equipped with through hole (2) on upper sealing ring (1) axial direction, is cased with floating in the pipe main body below upper sealing ring (1)
Sub (3), float (3) inwall are provided with sliding pin (10), and pipe main body (4) outer wall is provided with slideway (5) and slideway (5) and sliding pin (10) phase
Coordinate, pipe main body (4) bottom is provided with lower sealing ring (6), and the oil pipe below lower sealing ring (6) is provided with guide pad (9), lower sealing
Lower through-hole (7) is evenly equipped with ring (6) axial direction, lower through-hole (7) is corresponding with upper through hole (2), is evenly equipped with lower sealing ring (6) axial direction
Spring eye, spring eye are arranged at intervals with lower through-hole (7), are provided with spring (8) in spring eye, spring (8) is extended to outside spring eye
The portion and lower end of spring (8) is extended in the hole of guide pad (9)；Spring (8) can bear 5-8 MPas of pressure, and with this
The change of working condition is controlled, slideway (5) is provided with long slideway and short slideway, and sliding pin (10) becomes transposition in long slideway and short slideway
Put, the working condition of alarm can be changed.
2. oil well casing blowout prevention alarm according to claim 1, it is characterised in that：Described upper sealing ring (1) outer wall
Sealing ring (11) is built-in with provided with groove and groove.
3. oil well casing blowout prevention alarm according to claim 2, it is characterised in that：The lower end of described guide pad (9)
Face is domatic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610004257.3A CN105443065B (en) | 2016-01-06 | 2016-01-06 | Oil well casing blowout prevention alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610004257.3A CN105443065B (en) | 2016-01-06 | 2016-01-06 | Oil well casing blowout prevention alarm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105443065A CN105443065A (en) | 2016-03-30 |
| CN105443065B true CN105443065B (en) | 2018-02-09 |
Family
ID=55553646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610004257.3A Expired - Fee Related CN105443065B (en) | 2016-01-06 | 2016-01-06 | Oil well casing blowout prevention alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105443065B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4537543A (en) * | 1983-07-11 | 1985-08-27 | Scott Tommy L | Security locking bolt |
| WO2009007916A2 (en) * | 2007-07-12 | 2009-01-15 | Cameron International Corporation | Theft-deterrence device |
| CN201354594Y (en) * | 2009-01-30 | 2009-12-02 | 陈世祥 | Buoyancy burglar-proof oil pipe pup joint |
| CN201635682U (en) * | 2010-04-01 | 2010-11-17 | 黑龙江北方双佳钻采机具有限责任公司 | Multi-stage circulation head |
| CN201687432U (en) * | 2010-04-28 | 2010-12-29 | 大庆油田有限责任公司 | Oil casing ring empty oil anti-theft check valve in oil well |
| CN201705274U (en) * | 2010-05-27 | 2011-01-12 | 中国石油天然气股份有限公司 | Special packer for preventing oil theft |
| CN202039812U (en) * | 2011-05-25 | 2011-11-16 | 大庆恒源利通石油机械设备制造有限公司 | Oil pipe blowout preventive antitheft device |
| CN103266864A (en) * | 2013-06-04 | 2013-08-28 | 大庆恒源利通石油机械设备制造有限公司 | Internal spray-resisting burglar alarm of sleeve pipe |
-
2016
- 2016-01-06 CN CN201610004257.3A patent/CN105443065B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN105443065A (en) | 2016-03-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181009 Address after: 163316 Heilongjiang science and technology incubator phase 2, hatchmaker 228, Daqing hi tech Zone Patentee after: Daqing Yi Hong Petroleum Technology Co.,Ltd. Address before: 163000 Room 201, Kangle 01-2 3, rang Hu Road, Daqing, Heilongjiang Co-patentee before: Feng Junjie Patentee before: Xu Yaping |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180209 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |