CN203531821U - Blowout prevention combined valve type Christmas tree - Google Patents
Blowout prevention combined valve type Christmas tree Download PDFInfo
- Publication number
- CN203531821U CN203531821U CN201320646974.8U CN201320646974U CN203531821U CN 203531821 U CN203531821 U CN 203531821U CN 201320646974 U CN201320646974 U CN 201320646974U CN 203531821 U CN203531821 U CN 203531821U
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- China
- Prior art keywords
- valve
- valve plate
- type
- blowout prevention
- fixedly connected
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- Expired - Lifetime
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- 230000002265 prevention Effects 0.000 title claims abstract description 17
- 241000191291 Abies alba Species 0.000 title abstract 4
- 238000004519 manufacturing process Methods 0.000 claims description 22
- 238000005987 sulfurization reaction Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 13
- 230000033001 locomotion Effects 0.000 description 8
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 241000254175 Anthonomus grandis Species 0.000 description 1
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to a blowout prevention combined valve type Christmas tree which comprises a valve body. At least two valve plate holes communicated with a valve cavity are evenly distributed on the peripheral direction of the valve body and form moving pair with valve plates arranged in the valve plate holes and capable of moving in the valve plate holes, the tail portion of the valve plate holes are provided with inner threads and provided with valve covers in an inner thread matching mode, the valve plates are fixedly connected with hand wheels through a valve rod penetrating the valve covers, and the valve body is provided with outlets located above the valve plate holes and at the positions [perpendicular to the valve plate holes. The blowout prevention combined valve type Christmas tree has the advantages that the Christmas tree is reasonable and compact in structure, convenient to machine and operate, good in sealing performance; the valve plate are driven to move in the valve plate holes by turning the hand wheels so as to seal underground pressure and prevent oil blowout and leakage.
Description
Technical field
The utility model relates to a kind of oil exploitation wellhead assembly production tree, the blowout prevention combination valve type production tree that especially a kind of pumping production is used.
Background technology
At low pressure oil oil-producing region, heavy oil production district and the oil-producing region that shakes out, treat that recover petroleum, because the restriction of himself condition cannot realize blowing, need to adopt mechanical oil recovery equip ment to carry out oil producing operation.In mechanical oil recovery equip ment, its wellhead assembly is all comprised of tubing head and production tree, and tubing head is comprised of oil pipe four-way, boll-weevil hanger, crossover flange and valve etc., production tree is comprised of crossover sub, four-way, polished rod seal and packing box etc., this production tree exists loosely organized, the shortcomings such as consumptive material is many, and leak point is many.In addition in order to improve field output, the modes such as normal employing water filling, steam injection help adopts, can make like this borehole pressure occur abnormal, one small-sized preventer need to be installed above wellhead assembly, small-sized preventer not only can only seal less pressure, also can increase well head height, cause equipment operating inconvenient, safety is low.
Utility model content
The purpose of this utility model is: the problem existing for above-mentioned prior art, a kind of blowout prevention combination valve type production tree is proposed, and preventer and production tree are connected as a single entity, simplify structure, reduced well head height, and then reduced leakage point, effectively prevent from revealing, improve safety.
In order to reach above object, the utility model blowout prevention combination valve type production tree, comprise valve body, in uniform at least two the valve plate holes that are communicated with valve pocket of described valve body circumferencial direction, described valve plate hole forms moving sets with the valve plate that is arranged in valve plate hole and can moves in valve plate hole, afterbody in described valve plate hole is shaped with internal thread, be provided with valve gap with described screw-internal thread fit, described valve plate is fixedly connected with handwheel by running through the valve rod of valve gap, is positioned at above valve plate hole, has with vertical place, valve plate hole the outlet being communicated with valve pocket on described valve body.Like this, at down-hole pressure, occur when abnormal, can in valve plate hole, moving by rotation hand wheel drive valve plate, hold the polished rod in valve pocket tightly, carry out sealed well downforce, prevent that oil ejection from leaking.
Preferably, have at least two circumferential uniform pin-and-holes on the sidewall in described valve plate hole, coordinate and be provided with alignment pin with described pin-and-hole, the afterbody of described valve plate is shaped with the locating slot matching with alignment pin.Like this, alignment pin inserts in the locating slot on valve plate through the pin-and-hole on the sidewall of valve plate hole, and locating slot and alignment pin can form moving sets, for limiting the movement of valve plate in valve plate hole, and prevent that valve plate from overturning in motion process.
Preferably, on described alignment pin, be shaped with at least two O type grooves, in described O type groove, be provided for the O type circle of sealed valve body.
Preferably, by valve plate body and sulfuration, the rubber seal on valve plate body forms described valve plate, is shaped with O type groove on described valve plate body, in described O type groove, O type circle is set.
Preferably, the both sides of described valve body have outlet, and wherein a side outlet is fixedly connected with flap type by bolt, gasket ring, and opposite side outlet is fixedly connected with blind flange or flap type by bolt, gasket ring.
Preferably, described flap type is fixedly connected with thread flange by bolt, gasket ring.
Preferably, the bottom that is positioned at valve plate hole on described valve body has locking screw pit, coordinates and is provided with holding screw with described locking screw pit, and described valve body is fixedly connected with valve gap by holding screw.
Preferably, described valve gap is connected with threaded stem, and one end of described valve rod is fixedly connected with the T-shaped groove that is arranged on valve plate tail end, and the other end is fixedly connected with handwheel.
The utility model has the advantage of: blowout prevention combination valve type production tree of the present utility model is rational in infrastructure, compact, processing, easy to operate, good seal performance, moves in valve plate hole by rotation hand wheel drive valve plate, carry out sealed well downforce, prevent oil ejection leakage.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further described.
Fig. 1 is the structural representation of the utility model embodiment mono-.
Fig. 2 is that the A-A of Fig. 1 is to sectional view.
Fig. 3 is the structural representation of valve plate in the utility model.
Fig. 4 is the local enlarged diagram in B place of Fig. 2.
Figure comprises valve body 1, flap type 2, thread flange 3, blind flange 4, valve plate 5, valve rod 6, O type circle 7, alignment pin 8, holding screw 9, valve gap 10, handwheel 11, outlet 12, valve plate hole 13, locating slot 14, rubber seal 15, valve plate body 16, O type groove 17.
The specific embodiment
Embodiment mono-
The blowout prevention combination valve type production tree of the present embodiment, its structure as shown in Figure 2, comprise valve body 1, in uniform at least two the valve plate holes 13 that are communicated with valve pocket of valve body 1 circumferencial direction, valve plate hole 13 be arranged in valve plate hole 13 and can form moving sets at the valve plate 5 of valve plate hole 13 interior movements, afterbody in valve plate hole 13 is shaped with internal thread, be provided with valve gap 10 with described screw-internal thread fit, the bottom that is positioned at valve plate hole 13 on valve body 1 has locking screw pit, coordinate and be provided with holding screw 9 with described locking screw pit, valve body 1 is fixedly connected with valve gap 10 by holding screw 9.Valve plate 5 is fixedly connected with handwheel 11 by running through the valve rod 6 of valve gap 10, and valve gap 10 is threaded with valve rod 6, and one end of valve rod 6 is fixedly connected with the T-shaped groove that is arranged on valve plate 5 tail ends, and the other end is fixedly connected with handwheel 11.Like this, at down-hole pressure, occur when abnormal, can hold the polished rod in valve pocket tightly by rotation hand wheel 11 drive valve plate 5 in the interior movement in valve plate hole 13, carry out sealed well downforce, prevent that oil ejection from leaking.
On the sidewall in valve plate hole 13, have at least two circumferential uniform pin-and-holes, coordinate and be provided with alignment pin 8 with described pin-and-hole, the afterbody of valve plate 5 is shaped with the locating slot 14 matching with alignment pin 8, and on alignment pin 8, be shaped with at least two O type grooves, the O type circle 7(that is provided for sealed valve body 1 in O type groove is shown in Fig. 4).Like this, alignment pin 8 inserts in the locating slot 14 on valve plate 5 through the pin-and-hole on 13 sidewalls of valve plate hole, and locating slot 14 can form moving sets with alignment pin 8, for limiting the movement of valve plate 5 in valve plate hole 13, and prevents that valve plate 5 from overturning in motion process.In addition, above the both sides of valve body 1 are positioned at valve plate hole 13, have with vertical place, valve plate hole 13 outlet 12 being communicated with valve pocket, wherein a side outlet 12 is fixedly connected with flap type 2 by bolt, gasket ring, opposite side outlet is fixedly connected with blind flange 4 or flap type 2 by bolt, gasket ring, and flap type 2 is fixedly connected with (see figure 1) by bolt, gasket ring with thread flange 3.By valve plate body 16 and sulfuration, the rubber seal 15 on valve plate body 16 forms valve plate 5, is shaped with O type groove 17, the interior O type circle (see figure 3) that arranges of O type groove 17 on valve plate body 16.
In the surface drive course of work, because two side outlets 12 of special-purpose import are all positioned on valve plate hole 13, valve plate 5 is opened, and does not affect polished rod motion, realizes the normal oil extraction operation of production tree, by the open and close of flap type 2, controls oil producing operation.When down-hole pressure increases, when adding packing or changing surface drive, rotation hand wheel 11 actuate valve stem 6 motions, and then drive valve plate 5 to move to valve pocket center, and valve plate 5 is held polished rod tightly and is closed, sealed well downforce, thus prevent from revealing, realized the function of preventer.
In addition to the implementation, the utility model also can have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, drop on the protection domain of the utility model requirement.
Claims (8)
1. a blowout prevention combination valve type production tree, comprise valve body, it is characterized in that: in uniform at least two the valve plate holes that are communicated with valve pocket of described valve body circumferencial direction, described valve plate hole forms moving sets with the valve plate that is arranged in valve plate hole and can moves in valve plate hole, afterbody in described valve plate hole is shaped with internal thread, be provided with valve gap with described screw-internal thread fit, described valve plate is fixedly connected with handwheel by running through the valve rod of valve gap, is positioned at above valve plate hole, has with vertical place, valve plate hole the outlet being communicated with valve pocket on described valve body.
2. blowout prevention combination valve type production tree according to claim 1, it is characterized in that: on the sidewall in described valve plate hole, have at least two circumferential uniform pin-and-holes, coordinate and be provided with alignment pin with described pin-and-hole, the afterbody of described valve plate is shaped with the locating slot matching with alignment pin.
3. blowout prevention combination valve type production tree according to claim 2, is characterized in that: on described alignment pin, be shaped with at least two O type grooves, be provided for the O type circle of sealed valve body in described O type groove.
4. blowout prevention combination valve type production tree according to claim 2, is characterized in that: by valve plate body and sulfuration, the rubber seal on valve plate body forms described valve plate, is shaped with O type groove on described valve plate body, in described O type groove, O type circle is set.
5. blowout prevention combination valve type production tree according to claim 1, it is characterized in that: the both sides of described valve body have outlet, wherein a side outlet is fixedly connected with flap type by bolt, gasket ring, and opposite side outlet is fixedly connected with blind flange or flap type by bolt, gasket ring.
6. blowout prevention combination valve type production tree according to claim 5, is characterized in that: described flap type is fixedly connected with thread flange by bolt, gasket ring.
7. blowout prevention combination valve type production tree according to claim 1, it is characterized in that: the bottom that is positioned at valve plate hole on described valve body has locking screw pit, coordinate and be provided with holding screw with described locking screw pit, described valve body is fixedly connected with valve gap by holding screw.
8. blowout prevention combination valve type production tree according to claim 7, is characterized in that: described valve gap is connected with threaded stem, and one end of described valve rod is fixedly connected with the T-shaped groove that is arranged on valve plate tail end, and the other end is fixedly connected with handwheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320646974.8U CN203531821U (en) | 2013-10-18 | 2013-10-18 | Blowout prevention combined valve type Christmas tree |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320646974.8U CN203531821U (en) | 2013-10-18 | 2013-10-18 | Blowout prevention combined valve type Christmas tree |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203531821U true CN203531821U (en) | 2014-04-09 |
Family
ID=50418043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320646974.8U Expired - Lifetime CN203531821U (en) | 2013-10-18 | 2013-10-18 | Blowout prevention combined valve type Christmas tree |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203531821U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595835A (en) * | 2018-12-01 | 2019-04-09 | 湖南达道新能源开发有限公司 | A kind of wellhead assembly for geothermal energy resources |
| CN110206506A (en) * | 2019-06-10 | 2019-09-06 | 湖南达道新能源开发有限公司 | A kind of geothermal drilling well head cover board |
| CN110617024A (en) * | 2019-10-23 | 2019-12-27 | 东营市三和石油装备有限公司 | Controllable well plugging tool |
| CN111101891A (en) * | 2019-02-19 | 2020-05-05 | 大庆市富隆达石油工程机械设备有限公司 | Valve for oil well |
-
2013
- 2013-10-18 CN CN201320646974.8U patent/CN203531821U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595835A (en) * | 2018-12-01 | 2019-04-09 | 湖南达道新能源开发有限公司 | A kind of wellhead assembly for geothermal energy resources |
| CN111101891A (en) * | 2019-02-19 | 2020-05-05 | 大庆市富隆达石油工程机械设备有限公司 | Valve for oil well |
| CN110206506A (en) * | 2019-06-10 | 2019-09-06 | 湖南达道新能源开发有限公司 | A kind of geothermal drilling well head cover board |
| CN110206506B (en) * | 2019-06-10 | 2021-09-28 | 湖南达道新能源开发有限公司 | Wellhead cover plate for geothermal drilling |
| CN110617024A (en) * | 2019-10-23 | 2019-12-27 | 东营市三和石油装备有限公司 | Controllable well plugging tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140409 |
|
| CX01 | Expiry of patent term |