CN105443065A - Oil-well casing blowout preventer and burglar alarm - Google Patents
Oil-well casing blowout preventer and burglar alarm Download PDFInfo
- Publication number
- CN105443065A CN105443065A CN201610004257.3A CN201610004257A CN105443065A CN 105443065 A CN105443065 A CN 105443065A CN 201610004257 A CN201610004257 A CN 201610004257A CN 105443065 A CN105443065 A CN 105443065A
- Authority
- CN
- China
- Prior art keywords
- sealing ring
- oil
- slideway
- hole
- well casing
- 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.)
- Granted
Links
- 239000003129 oil well Substances 0.000 title claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 44
- 230000002265 prevention Effects 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 17
- 239000010779 crude oil Substances 0.000 description 8
- 239000007788 liquid Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 241000269793 Cryothenia peninsulae Species 0.000 description 1
- 230000009286 beneficial effect Effects 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
- 230000003292 diminished effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 238000013022 venting Methods 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Burglar Alarm Systems (AREA)
Abstract
The invention relates to an oil-well casing blowout preventer and burglar alarm. The oil-well casing blowout preventer and burglar alarm comprises a pipe body, wherein an upper sealing ring is arranged at the upper part of the pipe body; upper through holes are uniformly arranged in the upper sealing ring in the axial direction; a floater sleeves the pipe body below the upper sealing ring; a sliding pin is arranged on the inner wall of the floater; a slideway is arranged on the outer wall of the pipe body and is matched with the sliding pin; a lower sealing ring is arranged at the lower part of the pipe body; a guide block is arranged on an oil pipe below the lower sealing ring; lower through holes are uniformly arranged in the lower sealing ring in the axial direction and correspond to the upper through holes; springs are arranged in the lower through holes and extend to the outside of the lower through holes; the lower ends of the springs extend into holes of the guide block. The burglar alarm can be used for preventing wellhead oil from being stolen, and cannot affect the normal production of an oil well.
Description
Technical field:
The present invention relates to oil extraction in oil field technical field, refer in particular to a kind of oil well casing blowout prevention alarm.
Background technology:
At present, steal crude oil phenomenon (especially remote producing well) on each oil field very generally, to cause crude oil to run off, bring impact to field produces.Lawless person is very usual to start with at well head.They steal the major way of crude oil and decontrol 250 gates at production wellhead exactly, and one is that crude oil is stolen and causes economic loss, and two is that the process crude oil stealing crude oil is scattered on the ground, causes environment pollution, while also add labour intensity to workman.In order to prevent, crude oil is stolen, protection of the environment, and producing well facility is not damaged, and safeguards the daily management of oil well.Employ multi-form anti-theft measure, as Pithead preventing thieves, valve for guarding against theft etc., though can stolen phenomenon be suppressed, can not fundamentally stop stolen phenomenon.
Summary of the invention:
In order to solve the technical problem existed in background technology, the object of this invention is to provide a kind of oil well casing blowout prevention alarm.This alarm can stop Wellhead crue oil stolen, avoid economic loss, and do not affect oil well and normally produce.Avoid environment pollution simultaneously, also reduce the labour intensity of workman.
The object of the invention is to realize as follows: oil well casing blowout prevention alarm comprises tube body, described tube body top is provided with upper sealing ring, upper sealing ring is axially evenly equipped with through hole, on tube body below upper sealing ring, cover has float, float inwall is provided with sliding pin, tube body outer wall is provided with slideway and slideway matches with sliding pin, tube body bottom is provided with lower sealing ring, oil pipe below lower sealing ring is provided with guide pad, lower sealing ring is axially evenly equipped with lower through-hole, lower through-hole is corresponding with upper through hole, lower sealing ring is axially evenly equipped with spring eye, spring eye and lower through-hole interval are arranged, in spring eye, spring is installed, spring extends to spring eye outside and the lower end of spring extends 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 domatic.Slideway is provided with long slideway and short slideway, and sliding pin, in long slideway and short slideway inner conversion position, can change the duty of alarm.
The invention has the beneficial effects as follows: because the present invention adopts technique scheme, when sleeve gate is opened and prepares to steal the liquid in oil jacket ring cavity, under the effect of fluid pressure, float floats and closes oil jacket ring cavity, liquid in oil jacket ring cavity can not be stolen, reach antitheft object, do not affect the normal production of oil well in this case.Avoid the crude oil pollution environment be scattered simultaneously, reach the object of environmental protection, also reduce the labour intensity of workman.
Accompanying drawing illustrates:
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 that the present invention transforms to the structural representation of 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 ring; The upper through hole of 2-; 3-float; 4-tube body; 5-slideway; 6-lower sealing ring; 7-lower through-hole; 8-spring; 9-guide pad; 10-sliding pin; 11-sealing ring.
Detailed description of the invention:
Below in conjunction with accompanying drawing, the present invention is further described:
As shown in the figure, oil well casing blowout prevention alarm comprises tube body 4, described tube body 4 top has been threaded upper sealing ring 1, upper sealing ring 1 is axially evenly equipped with through hole 2, on tube body 4 below upper sealing ring 1, cover has float 3, alarm is in float 3 under anti-theft state and floats and close the upper through hole 2 of upper sealing ring 1, the liquid stream of oil jacket annular space is not gone out and is reached antitheft object, float 3 inwall is provided with sliding pin 10, tube body 4 outer wall is provided with slideway 5 and slideway 5 matches with sliding pin 10, slide in the position that sliding pin 10 can be different in slideway 5 under external force, tube body 4 lower thread is connected with lower sealing ring 6, oil pipe below lower sealing ring 6 is provided with guide pad 9, lower sealing ring 6 is axially evenly equipped with lower through-hole 7, lower through-hole 7 is corresponding with upper through hole 8, lower sealing ring 6 is axially evenly equipped with spring eye, spring eye and lower through-hole 7 interval are arranged, spring 8 is installed in spring eye, spring 8 extends to spring eye outside and the lower end of spring 8 extends in the hole of guide pad 9.
When being in antitheft duty to make the application, the tighter of oil jacket annular space sealing is provided with groove and groove is built-in with sealing ring 11 at upper sealing ring 1 outer wall.Sealing ring 11 pairs of oil jacket ring cavities effectively seal.
In order to prevent the application's not scratching in the process of going into the well to casing coupling, to be set to domatic in the lower surface of guide pad 9, be conducive to safety is installed.
The slideway 5 of the application is provided with long slideway and short slideway, sliding pin 10 in long slideway and short slideway inner conversion position, the duty of change alarm that can be artificial.
When normal wax removal heat is washed, change the duty of this product and be designed with Compress Spring, Compress Spring can bear the pressure of 5-8 MPa, and the change of duty is controlled with this, that is the duty of the application could be changed by Compress Spring when upper and lower pressure reduction must reach 5-8 MPa, and pressure when generally heat is washed is about 2 MPas, so under pressure when normal wash, spring still can support float 3 and can not be compressed, and can not change the duty of float 3.
When the application is in antitheft duty as shown in Figure 1: sleeve gate is opened, under pressure, when liquid level rises to this product place, the up upper through hole 2 sealed on upper sealing ring 1 of float 3, oil jacket ring cavity is closed, and oil jacket ring intracavity liquid can not be stolen, and reaches antitheft object.Namely the object that preventing pollution environment event occurs is reached.Sliding pin 10 position as shown in Figure 1 when being in antitheft duty.The application does not affect oil well and normally to work production when being in antitheft duty.
The application is in upper and lower UNICOM duty: when the reason such as oil pipe internal cause wax deposition forms that sucker rod is stuck needs operation and in sleeve pipe, liquid level rises to this product time, when upper sealing ring 1 seals, casing gas discharging cannot be carried out and reduce casing pressure.When carrying out underground work, reducing casing pressure carries out underground work to need this product introduction upper and lower UNICOM duty to ensure.After state adjustment, make float can not seal with upper sealing ring 1 reach the upper and lower UNICOM of float in sleeve pipe and ensure that operation is carried out smoothly.The operation of change duty is as follows: to fetch water in sleeve pipe pressurization with cementing truck, when flow reach 30 sides/time, and upper and lower pressure reduction is when 5-8 MPa, float compresses support spring under pressure and moves down as shown in Figure 4, aisle spare is diminished, 500 square millimeters are become by 2500 square millimeters, diminish due to aisle spare thus make pressure increase further, at this moment sliding pin 10 is in break-in state position 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, this product is communicated with up and down, so that next step carries out operation.
The application is arranged on apart from well head first oil pipe and second oil pipe junction, approximately apart from about 10 meters, ground.Open sleeve pipe emptying gate, as put casing gas continuously, large discharge was UNICOM's state more than 20 seconds, and as venting is no more than 10 seconds continuously, gas flow declines very soon, is to be in anti-theft state.
Claims (4)
1. an oil well casing blowout prevention alarm, comprise tube body (4), it is characterized in that: described tube body (4) top is provided with upper sealing ring (1), upper sealing ring (1) is axially evenly equipped with through hole (2), on the tube body of upper sealing ring (1) below, cover has float (3), float (3) inwall is provided with sliding pin (10), tube body (4) outer wall is provided with slideway (5) and slideway (5) matches with sliding pin (10), tube body (4) bottom is provided with lower sealing ring (6), the oil pipe of lower sealing ring (6) below is provided with guide pad (9), lower sealing ring (6) is axially evenly equipped with lower through-hole (7), lower through-hole (7) is corresponding with upper through hole (2), lower sealing ring (6) is axially evenly equipped with spring eye, spring eye and lower through-hole (7) interval are arranged, spring (8) is installed in spring eye, spring (8) extends to spring eye outside and the lower end of spring (8) extends in the hole of guide pad (9).
2. oil well casing blowout prevention alarm according to claim 1, is characterized in that: described upper sealing ring (1) outer wall is provided with groove and groove is built-in with sealing ring (11).
3. oil well casing blowout prevention alarm according to claim 2, is characterized in that: the lower surface of described guide pad (9) is domatic.
4. oil well casing blowout prevention alarm according to claim 3, is characterized in that: slideway (5) is provided with long slideway and short slideway, and sliding pin (10), in long slideway and short slideway inner conversion position, can change the duty of alarm.
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 true CN105443065A (en) | 2016-03-30 |
| CN105443065B 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) |
Citations (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
Patent Citations (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105443065B (en) | 2018-02-09 |
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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 | ||
| 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 |
|
| 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: 20180209 |