CN106703748A - Well killing-free and unloading-free christmas tree wellhead blowout preventer - Google Patents
Well killing-free and unloading-free christmas tree wellhead blowout preventer Download PDFInfo
- Publication number
- CN106703748A CN106703748A CN201710126600.6A CN201710126600A CN106703748A CN 106703748 A CN106703748 A CN 106703748A CN 201710126600 A CN201710126600 A CN 201710126600A CN 106703748 A CN106703748 A CN 106703748A
- Authority
- CN
- China
- Prior art keywords
- valve
- horizontal
- centerbody
- blowout preventer
- free
- 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.)
- Withdrawn
Links
- 241000191291 Abies alba Species 0.000 title claims abstract description 17
- 238000012856 packing Methods 0.000 claims description 4
- 238000011010 flushing procedure Methods 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000007789 sealing Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000005086 pumping Methods 0.000 abstract description 3
- 230000002411 adverse Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000002360 explosive Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000009467 reduction Effects 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/02—Valve arrangements for boreholes or wells in well heads
Abstract
The invention relates to a well killing-free and unloading-free christmas tree wellhead blowout preventer. The problems that the existing oil producing wellhead blowout preventer has a complicated maintenance and replacement procedure and high labor intensity are solved. The well control-free and unloading-free christmas tree wellhead blowout preventer is characterized in that the left and right sides of a center body (3) are respectively connected with a horizontal valve (2), and a bypass valve (1) is arranged between a joint of the center body (3) and the horizontal valve (2); and the bypass valve (1) and the horizontal valve (2) are respectively communicated with the inside of the center body (3). When the well killing-free and unloading-free christmas tree wellhead blowout preventer fails in sealing, a sealing component can be replaced without flushing and killing a well and unloading a pumping unit, so that a large amount of manpower and material resources and the adverse effects caused by production are eliminated, and the replacement and maintenance are simple and convenient.
Description
Technical field
The present invention relates to oilfield, specifically one kind exempts from kill-job and exempts to unload Christmas tree wellhead blowout preventer.
Background technology
The production tree that Christmas tree wellhead blowout preventer is used in the daily production of producing well, is changing packing for sealing polish rod and disk
Closed during root box, be used to intercept the band press liquid in oil pipe.Christmas tree wellhead blowout preventer is in routine use consumption and long-time oil
Under air water immersion corrosion, damage and cause seal failure, it is necessary to carry out maintenance replacing.Changing blowout preventer at present needs well-flushing pressure
Well, to shed and wear replacing from polished rod after oil pumper load, tedious process, input manpower and materials are more, labour intensity is larger.
The content of the invention
It is big in order to overcome the shortcomings of existing sealer for mouth of oil extraction well maintenance replacing tedious process, labour intensity, it is of the invention
Offer one kind exempts from kill-job and exempts to unload Christmas tree wellhead blowout preventer, and this is exempted from kill-job and exempts from unloading Christmas tree wellhead blowout preventer in seal failure
Shi Shixian need not well-flushing kill-job and oil pumping machine unloading be replaceable seal member, eliminate substantial amounts of manpower and materials and eliminate life
The adverse effect brought on product so that repair and replacement are simple and convenient.
The technical scheme is that：One kind exempts from kill-job and exempts to unload Christmas tree wellhead blowout preventer, including centerbody, centerbody
Upper and lower ends connect packing box and wellhead tree tree ring flange respectively, and the left and right sides is connected to horizontal valve on the centerbody
Door, escribes valve between the connector of centerbody and horizontal valve, and escribe valve and horizontal valve respectively with centerbody in
Portion communicates.
Horizontal valve connecting seat is respectively arranged on the left side and the right side on the centerbody, level is connected with horizontal valve connecting seat
Valve, escribes valve connecting seat between the connector of centerbody and horizontal valve, escribe to be connected with valve connecting seat and escribe
Valve.
The horizontal valve is connected by horizontal valve housing with centerbody, and horizontal valve housing is internally connected with level silk
Thick stick, horizontal screw lead the inner is connected with horizontal flashboard.
The valve that escribes is for gate valve.
It is described to escribe valve plate and be connected with centerbody by escribing valve housing, escribe valve housing and be internally connected with leading screw,
Leading screw end is connected with flashboard.
The present invention has the advantages that：Due to taking such scheme, valve is escribed by what is connected on centerbody
Mutually switch switching is carried out with horizontal valve：The horizontal valve closing of standard-sized sheet escribes valve, replacing and escribes valve during replacing horizontal valve
Standard-sized sheet escribes the horizontal valve of valve closing during door so that when changing, maintenance escribing valve or horizontal valve, can make pit shaft
Sealing, prevents liquid leakage in pit shaft.Compared with existing replacing Wellhead packer, the mode that maintenance is changed is changed completely, exempted from
Vehicle, oil consumption, the water consume input by cementing truck well-flushing are gone, while avoiding the ground lamination product that well-flushing kill-job is brought（Oil well
Yield reduction）；Eliminate check card sub- unloading, equipment of oil pumper to wear and fasten big torsion spiral shell button with loose unloading, reduce work operation,
Significantly reduce labour intensity.
Brief description of the drawings
Fig. 1 is the explosive view of front view of the invention；
Fig. 2 is the explosive view of top view of the invention；
Fig. 3 is the half sectional view of front view of the invention；
Fig. 4 is the structural representation of horizontal valve flashboard.
1- escribes valve in figure, the horizontal valves of 2-, 3- centerbodies, and 11- escribes valve housing, 12- leading screws, 13- flashboards,
21- horizontal screw leads, the horizontal valve housings of 22-, the horizontal flashboards of 23-, 31- escribes valve connecting seat, the horizontal valve connecting seats of 32-,
33- upper binding heads, 34- lower union joints.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings：
As shown in Fig. 1 to Fig. 4, one kind exempts from kill-job and exempts to unload Christmas tree wellhead blowout preventer, including centerbody 3, and the inside of centerbody 3 is
Four-way, the upper and lower ends of centerbody 3 connect packing box and wellhead tree tree ring flange respectively, and the left and right sides is connected to horizontal valve
Door 2, and the upper and lower ends of centerbody 3 are respectively upper binding head 33 and lower union joint 34, one of connector both sides and water
Valve 1 is escribed between flat valve door 2.Valve 1 and the horizontal valve 2 of escribing is communicated with inside centerbody 3 respectively.To make level
Valve 2 is conveniently fixed with valve 1 is escribed, and horizontal valve connecting seat 32, horizontal valve are respectively arranged on the left side and the right side on the centerbody 3
Horizontal valve 2 is connected with door connecting seat 32,3 liang of upper lateral parts of centerbody are provided with and escribe valve connecting seat 31, escribes valve connection
It is connected with seat 31 and escribes valve 1.
The horizontal valve 2 is connected by horizontal valve housing 22 with centerbody 3, and horizontal valve housing 22 is internally connected with
Horizontal screw lead 21, the inner of horizontal screw lead 21 is connected with horizontal flashboard 23, and horizontal flashboard 23 can be under the drive of horizontal screw lead 21
In move or be displaced outwardly.When movement makes horizontal 2 Close All of valve to horizontal flashboard 23 inwards, horizontal valve 2 and centerbody 3
And the polished rod of inside is collectively forming seal combination, band press liquid in pit shaft can be closed；When horizontal flashboard 23 is moved outwardly to close
When right position is put, the inner passage of centerbody 3 is opened, the valve passage that escribes on top is closed, liquid enters other in intercepting pit shaft
Cutting valve 1, carries out replacing and escribes the No leakage of valve 1.
The valve 1 that escribes is for gate valve, or other can realize the valve of identical function.Illustrated by taking gate valve as an example below
Escribe the structure and function of valve 1, it is described to escribe valve plate 1 and be connected with centerbody 3 by escribing valve housing 11, escribe valve shell
Body 11 is internally connected with leading screw 12, and the end of leading screw 12 is connected with flashboard 13.Flashboard can be driven about 13 by rotational lead screw 12
It is mobile, escribe valve 1 so as to open or close.When horizontal valve 2 is fully open, closing escribes valve 1, can intercept pit shaft
Middle band press liquid enters horizontal valve 2, carries out the horizontal No leakage of valve 2 of replacing.
It is described on end, escribe valve 1 and be combined with each other switch switching with horizontal valve 2 so that without letting out when changing one of them
Leakage.
The Wellhead packer is by escribing the combination of valve 1, horizontal valve 2 and central part 3 so that the Wellhead packer is sent out
Raw seal failure part is usual at horizontal valve 2, so, by changing the horizontal valve 2 for damaging.Wherein horizontal valve
The front end of horizontal flashboard 23 in 2 is semicircle, is provided simultaneously with the function of sealing down-hole liquid after blowout preventer sealed clamping polished rod, this
Sample repair and replacement seal member just eliminate avoid oil and gas leakage well-flushing kill-job and change wear blowout preventer unload oil pumping it is airborne
Lotus operates.
Claims (5)
1. one kind exempts from kill-job and exempts from unloading Christmas tree wellhead blowout preventer, including centerbody（3）, centerbody（3）Upper and lower ends connect respectively
Connect packing box and wellhead tree tree ring flange, it is characterised in that：The centerbody（3）The upper left and right sides is connected to horizontal valve
Door（2）, centerbody（3）Connector and horizontal valve（2）Between escribe valve（1）, and escribe valve（1）With horizontal valve
（2）Respectively with centerbody（3）Inside communicates.
2. it is according to claim 1 exempt from kill-job exempt from unload Christmas tree wellhead blowout preventer, it is characterised in that：The centerbody
（3）On be respectively arranged on the left side and the right side horizontal valve connecting seat（32）, horizontal valve connecting seat（32）On be connected with horizontal valve
（2）, centerbody（3）Connector and horizontal valve（2）Between escribe valve connecting seat（31）, escribe valve connecting seat（31）
On be connected with and escribe valve（1）.
3. it is according to claim 1 and 2 exempt from kill-job exempt from unload Christmas tree wellhead blowout preventer, it is characterised in that：The level
Valve（2）By horizontal valve housing（22）With centerbody（3）It is connected, horizontal valve housing（21）It is internally connected with horizontal screw lead
（21）, horizontal screw lead（21）The inner is connected with horizontal flashboard（23）.
4. it is according to claim 3 exempt from kill-job exempt from unload Christmas tree wellhead blowout preventer, it is characterised in that：It is described to escribe valve
（1）It is gate valve.
5. it is according to claim 4 exempt from kill-job exempt from unload Christmas tree wellhead blowout preventer, it is characterised in that：It is described to escribe valve plate
（1）By escribing valve housing（11）With centerbody（3）It is connected, escribes valve housing（11）It is internally connected with leading screw（12）, silk
Thick stick（12）End is connected with flashboard（13）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710126600.6A CN106703748A (en) | 2017-03-03 | 2017-03-03 | Well killing-free and unloading-free christmas tree wellhead blowout preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710126600.6A CN106703748A (en) | 2017-03-03 | 2017-03-03 | Well killing-free and unloading-free christmas tree wellhead blowout preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106703748A true CN106703748A (en) | 2017-05-24 |
Family
ID=58912150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710126600.6A Withdrawn CN106703748A (en) | 2017-03-03 | 2017-03-03 | Well killing-free and unloading-free christmas tree wellhead blowout preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106703748A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2293641Y (en) * | 1997-04-18 | 1998-10-07 | 四川石油管理局川西南矿区 | Inner hole plug for maintaining wellhead device gate valve |
| CN2680848Y (en) * | 2003-12-26 | 2005-02-23 | 龚伟安 | Natural gas production well mouth device capable of replacing parts without killing well |
| GB0917915D0 (en) * | 2006-08-18 | 2009-11-25 | Cameron Int Corp | Wellhead assembly |
| WO2012049509A2 (en) * | 2010-10-12 | 2012-04-19 | Artificial Lift Company Limited | Wellhead and christmas tree assembly |
| CN202520257U (en) * | 2011-12-08 | 2012-11-07 | 江苏宏泰石化机械有限公司 | Device for replacing main control valve of christmas tree without killing well |
| CN202560159U (en) * | 2012-05-15 | 2012-11-28 | 艾中中 | Fire-fighting environment-friendly safe gate valve device |
| CN106368649A (en) * | 2016-10-13 | 2017-02-01 | 西安东新石油设备厂有限公司 | Full-airtight high pressure valve leakage treatment device and method |
| CN106468150A (en) * | 2015-08-14 | 2017-03-01 | 中国石油天然气股份有限公司 | Polish rod seal device |
| CN206539331U (en) * | 2017-03-03 | 2017-10-03 | 胡升龙 | Exempt from kill-job to exempt to unload Christmas tree wellhead blowout preventer |
-
2017
- 2017-03-03 CN CN201710126600.6A patent/CN106703748A/en not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2293641Y (en) * | 1997-04-18 | 1998-10-07 | 四川石油管理局川西南矿区 | Inner hole plug for maintaining wellhead device gate valve |
| CN2680848Y (en) * | 2003-12-26 | 2005-02-23 | 龚伟安 | Natural gas production well mouth device capable of replacing parts without killing well |
| GB0917915D0 (en) * | 2006-08-18 | 2009-11-25 | Cameron Int Corp | Wellhead assembly |
| WO2012049509A2 (en) * | 2010-10-12 | 2012-04-19 | Artificial Lift Company Limited | Wellhead and christmas tree assembly |
| CN202520257U (en) * | 2011-12-08 | 2012-11-07 | 江苏宏泰石化机械有限公司 | Device for replacing main control valve of christmas tree without killing well |
| CN202560159U (en) * | 2012-05-15 | 2012-11-28 | 艾中中 | Fire-fighting environment-friendly safe gate valve device |
| CN106468150A (en) * | 2015-08-14 | 2017-03-01 | 中国石油天然气股份有限公司 | Polish rod seal device |
| CN106368649A (en) * | 2016-10-13 | 2017-02-01 | 西安东新石油设备厂有限公司 | Full-airtight high pressure valve leakage treatment device and method |
| CN206539331U (en) * | 2017-03-03 | 2017-10-03 | 胡升龙 | Exempt from kill-job to exempt to unload Christmas tree wellhead blowout preventer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170524 |
|
| WW01 | Invention patent application withdrawn after publication |