CN205297473U - Self-dropping type blowout-preventing oil drainage underground switch - Google Patents
Self-dropping type blowout-preventing oil drainage underground switch Download PDFInfo
- Publication number
- CN205297473U CN205297473U CN201521028621.7U CN201521028621U CN205297473U CN 205297473 U CN205297473 U CN 205297473U CN 201521028621 U CN201521028621 U CN 201521028621U CN 205297473 U CN205297473 U CN 205297473U
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- China
- Prior art keywords
- blowout prevention
- main body
- sliding sleeve
- oil
- draining
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Links
- 230000002265 prevention Effects 0.000 claims abstract description 48
- 238000007789 sealing Methods 0.000 claims description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000003129 oil well Substances 0.000 abstract description 14
- 230000005484 gravity Effects 0.000 abstract description 3
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Sliding Valves (AREA)
Abstract
The utility model provides a self-dropping type blowout-prevention oil drainage underground switch, which comprises an oil drainer main body and an extension coupling connected with the lower end of the oil drainer main body, wherein the upper end of the oil drainer main body is provided with a pressing cap, one side of the oil drainer main body is provided with an oil drainage valve, and a hollow oil drainage pin is arranged in the oil drainage valve; be equipped with sealed sliding sleeve and with sealed sliding sleeve complex spout in the bleeder main part, be equipped with the jump ring on the sealed sliding sleeve, the spout both ends are equipped with the jump ring groove, the below of sealed sliding sleeve is equipped with prevents spouting the valve plate assembly. The utility model discloses utilize and prevent spouting the function that the quilt scatters under the action of gravity behind the striking, effectively solved the problem that the blowout prevention valve easily resets and closes under the high pressure state, avoided because of preventing that the blowout prevention valve can not open the pit shaft fault incident's that causes emergence, guarantee oil well normal production has improved the rate when opening the well, and economic benefits is showing.
Description
Technical field
This utility model belongs to oil well well workover technology field, is specifically related to a kind of from separation-type blowout prevention draining down-hole switch.
Background technology
The preventer that current oil field is commonly used is conventional gland-type blowout control drip, although when workover rig service to oil well, in the process of lower drain line and rod string, prevent the excessive and ejection of oil gas in oil pipe from having good effect for sealing the oil gas of oil pipe inner chamber, but at home part oil field because of stratum energy big, during bottom pressure height, cause that the upper and lower pressure reduction of blowout control drip is too big, blowout prevention lid can automatically reset, it is closed, cause the phenomenon often occurring blowout control drip not open in oil well production, oil well cannot normally produce, require over and touch pump, resume production after sleeve opening emptying, if measure is invalid, pump detection and workover must be carried out, have a strong impact on Downhole Construction progress and oil well output.
Utility model content
The purpose of this utility model is to solve, because gland-type blowout control drip conventional when bottom pressure height causes oil well production is not opened often, to cause the problem that oil feeding function cannot realize and have a strong impact on oil well output.
For this, this utility model provides a kind of from separation-type blowout prevention draining down-hole switch, including the lengthening box cupling that bleeder main body is connected with bleeder main body lower end, described bleeder main body upper end is provided with pressure cap, described bleeder body side is provided with gate gurgle valve, is provided with hollow draining pin in described gate gurgle valve;
Be provided with in described bleeder main body seal sliding sleeve and with seal the chute that coordinates of sliding sleeve, described sealing sliding sleeve is provided with jump ring, and described chute two ends are provided with jump-ring slot, described sealing sliding sleeve be connected with blowout prevention valve plate assembly;
Described blowout prevention valve plate assembly is made up of blowout prevention lid and connection screw rod, and described blowout prevention lid is bonded with being connected screw rod by six 60 degree of arc plates.
Described hollow draining pin one end is provided with nut, and the other end is provided with breaking groove, and nut is arranged over thrust jump ring, is connected with gasket seal and sealing ring.
The thread pitch of described hollow draining pin is M24 �� 2.0.
Described fracture groove width 10mm, high 3mm.
Described hollow draining pin is red copper material.
The beneficial effects of the utility model are: it is this from separation-type blowout prevention draining down-hole switch that this utility model provides, structure is ingenious, easy to operate, utilize the function that blowout prevention lid is scattered after being knocked under gravity, efficiently solve blowout prevention valve under high pressure conditions and be prone to the problem closed that resets, avoid because blowout prevention valve is not opened the generation of the borehole failure event caused, and the production loss that oil well stopping production causes, both the function boring blowout prevention under oil pipe had been achieved, in turn ensure that oil inlet passage is smooth and easy, ensure that oil well normally produces, improve rate when driving a well, remarkable in economical benefits.
It is described in further details below in conjunction with accompanying drawing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is from separation-type blowout prevention draining down-hole switch blowout prevention functional schematic;
Fig. 3 is spilled into functional oil schematic diagram from separation-type blowout prevention draining down-hole switch blowout prevention lid;
Fig. 4 is from separation-type blowout prevention draining down-hole switch oil draining function schematic diagram.
In figure: 1, pressure cap; 2, jump ring; 3, sliding sleeve is sealed; 4, bleeder main body; 5, hollow draining pin; 6, gasket seal; 7, sealing ring; 8, blowout prevention valve plate assembly; 9, box cupling is lengthened; 10, gate gurgle valve; 11,60 degree of arc plates; 12, standing valve; 13, sucker rod.
Detailed description of the invention
Embodiment 1:
Present embodiments provide a kind of as shown in Figure 1 from separation-type blowout prevention draining down-hole switch, including the lengthening box cupling 9 that bleeder main body 4 is connected with bleeder main body 4 lower end, described bleeder main body 4 upper end is provided with pressure cap 1, described bleeder main body 4 side is provided with gate gurgle valve 10, is provided with hollow draining pin 5 in described gate gurgle valve 10;
Be provided with in described bleeder main body 4 seal sliding sleeve 3 and with seal the chute that coordinates of sliding sleeve 3, described sealing sliding sleeve 3 is provided with jump ring 2, and described chute two ends are provided with jump-ring slot, described sealing sliding sleeve 3 be connected with blowout prevention valve plate assembly 8;
Described blowout prevention valve plate assembly 8 is made up of blowout prevention lid and connection screw rod, and described blowout prevention lid is bonded with being connected screw rod by six 60 degree of arc plates 11.
As in figure 2 it is shown, from separation-type blowout prevention draining down-hole switch, in the process of lower drain line and sucker rod 13 post, the blowout prevention cap seal of blowout prevention valve plate assembly 8 is lived the oil gas of oil pipe inner chamber and is prevented the excessive and ejection of oil gas in oil pipe.
As shown in Figure 3, during lower pump, it is arranged between oil well pump and standing valve 12 from separation-type blowout prevention draining down-hole switch, after being drilled well under oil pipe bar, utilizing plunger depression from the blowout prevention valve assembly of separation-type blowout prevention draining down-hole switch, blowout prevention lid is dispersed into six 60 degree of arc plates 11, and come off between bleeder main body 4 and standing valve 12, the mouth groove that liquid is opened by blowout prevention lid enters pump barrel, it is achieved oil feeding function, ensures that oil well is just normally opened and takes out.
As shown in Figure 4, when playing oil pipe, by putting into sucker rod 13, the impact head being connected to sucker rod 13 head end severs hollow draining pin 5, thus getting through oil pipe and sleeve channel, reaches the purpose of draining.
Embodiment 2:
On the basis of embodiment 1, described hollow draining pin 5 one end is provided with nut, and the other end is provided with breaking groove, and nut is arranged over thrust jump ring, is connected with gasket seal 6 and sealing ring 7. Hollow draining pin 5 adds sealing steel pad, sealing ring 7 and thrust jump ring, is insured by three roads, improves the sealing property of pin. , add bearing strength and the decay resistance of bleeder simultaneously, improve sealing property.
The thread pitch of described hollow draining pin 5 is M24 �� 2.0, and the present embodiment is changed the thread pitch of former hollow draining pin 5 into M24 �� 2.0 by M24 �� 1.5, enhances tension and the bearing strength of draining pin.
Described fracture groove width 10mm, high 3mm, it is ensured that bleeder pin can disposable successfully be opened.
Described hollow draining pin 5 is red copper material, enhances corrosion resistance.
In sum, it is this from separation-type blowout prevention draining down-hole switch that this utility model provides, structure is ingenious, easy to operate, utilize the function that blowout prevention lid is scattered after being knocked under gravity, efficiently solve blowout prevention valve under high pressure conditions and be prone to the problem closed that resets, avoid because blowout prevention valve is not opened the generation of the borehole failure event caused, and the production loss that oil well stopping production causes, both achieved the function boring blowout prevention under oil pipe, in turn ensure that oil inlet passage was smooth and easy, ensured that oil well normally produced, improve rate when driving a well, remarkable in economical benefits.
The present embodiment does not have specifically described part to broadly fall into known general knowledge and the known technology of the art, no longer describes in detail one by one herein.
Exemplified as above is only to illustration of the present utility model, is not intended that the restriction to protection domain of the present utility model, every belongs within protection scope of the present invention with the same or analogous design of this utility model.
Claims (5)
1. from separation-type blowout prevention draining down-hole switch, including the lengthening box cupling (9) that bleeder main body (4) is connected with bleeder main body (4) lower end, it is characterized in that: described bleeder main body (4) upper end is provided with pressure cap (1), described bleeder main body (4) side is provided with gate gurgle valve (10), is provided with hollow draining pin (5) in described gate gurgle valve (10);
The chute sealing sliding sleeve (3) and coordinating with sealing sliding sleeve (3) it is provided with in described bleeder main body (4), described sealing sliding sleeve (3) is provided with jump ring (2), described chute two ends are provided with jump-ring slot, described sealing sliding sleeve (3) be connected with blowout prevention valve plate assembly (8);
Described blowout prevention valve plate assembly (8) is by blowout prevention lid and connects screw rod and forms, described blowout prevention lid by six 60 degree arc plates (11) be connected screw rod and be bonded.
2. according to claim 1 from separation-type blowout prevention draining down-hole switch, it is characterized in that: described hollow draining pin (5) one end is provided with nut, the other end is provided with breaking groove, and nut is arranged over thrust jump ring, is connected with gasket seal (6) and sealing ring (7).
3. according to claim 2 from separation-type blowout prevention draining down-hole switch, it is characterised in that: the thread pitch of described hollow draining pin (5) is M24 �� 2.0.
4. according to claim 2 from separation-type blowout prevention draining down-hole switch, it is characterised in that: described fracture groove width 10mm, high 3mm.
5. according to claim 1 and 2 from separation-type blowout prevention draining down-hole switch, it is characterised in that: described hollow draining pin (5) is red copper material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521028621.7U CN205297473U (en) | 2015-12-14 | 2015-12-14 | Self-dropping type blowout-preventing oil drainage underground switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521028621.7U CN205297473U (en) | 2015-12-14 | 2015-12-14 | Self-dropping type blowout-preventing oil drainage underground switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205297473U true CN205297473U (en) | 2016-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521028621.7U Active CN205297473U (en) | 2015-12-14 | 2015-12-14 | Self-dropping type blowout-preventing oil drainage underground switch |
Country Status (1)
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| CN (1) | CN205297473U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108915636A (en) * | 2018-09-14 | 2018-11-30 | 天津大港油田石油工程研究院钻采技术开发有限公司 | Anti- liquid hammer bleeder |
| CN110080720A (en) * | 2019-05-24 | 2019-08-02 | 盐城市弘通石油机械有限公司 | A kind of balanced type shock blowout control drip |
| CN112780226A (en) * | 2021-01-11 | 2021-05-11 | 中国石油天然气股份有限公司 | Composite blowout-preventing oil drain valve, tubular column string with oil drain valve and application method |
-
2015
- 2015-12-14 CN CN201521028621.7U patent/CN205297473U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108915636A (en) * | 2018-09-14 | 2018-11-30 | 天津大港油田石油工程研究院钻采技术开发有限公司 | Anti- liquid hammer bleeder |
| CN108915636B (en) * | 2018-09-14 | 2023-12-15 | 天津大港油田石油工程研究院钻采技术开发有限公司 | Liquid impact resistant oil drain device |
| CN110080720A (en) * | 2019-05-24 | 2019-08-02 | 盐城市弘通石油机械有限公司 | A kind of balanced type shock blowout control drip |
| CN110080720B (en) * | 2019-05-24 | 2023-09-26 | 盐城市弘通石油机械有限公司 | Balanced type impact blowout prevention oil drainage device |
| CN112780226A (en) * | 2021-01-11 | 2021-05-11 | 中国石油天然气股份有限公司 | Composite blowout-preventing oil drain valve, tubular column string with oil drain valve and application method |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |