CN201915920U - Hydraulic shockproof igniter - Google Patents
Hydraulic shockproof igniter Download PDFInfo
- Publication number
- CN201915920U CN201915920U CN 201020685512 CN201020685512U CN201915920U CN 201915920 U CN201915920 U CN 201915920U CN 201020685512 CN201020685512 CN 201020685512 CN 201020685512 U CN201020685512 U CN 201020685512U CN 201915920 U CN201915920 U CN 201915920U
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- CN
- China
- Prior art keywords
- top connection
- center tap
- piston
- pressure transmission
- transmission hole
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- 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
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Abstract
The utility model relates to a hydraulic shockproof igniter, which is applied to tubing conveying and perforating operations in oil and gas fields and comprises an upper connector, a sealing slide bushing, a rupture disc, a pressure transmission hole, a piston type striker plug, shear pins, a middle connector and the like. The pressure transmission hole or clearance is filled with hydraulic oil through an oil filling hole before descent in a well, during descent of tubing into the well, liquid and the piston type striker plug in the tubing are isolated by a packing in the sealing slide bushing and the rupture disc, and the piston type striker plug can be prevented from moving downward by the aid of the hydraulic oil in the pressure transmission oil when in tubing emergency stop, drilling pause, tripping prior to falling or the like. When perforation and detonation is needed, steel balls are put into from a wellhead to fall into a ball seat and block a bypass hole, the interior of the tubing is pressurized to rupture the rupture disc and the pressure acts to the piston type striker plug through the pressure transmission hole so as to shear the shear pins, and thereby the piston type striker plug strikes a detonator to complete detonation.
Description
Technical field
The utility model relates to the shockproof igniter head of a kind of hydraulic pressure, is mainly used in the igniter in the operation of oil gas field oil tube conveying gun perforation, belongs to the perforation auxiliary equipment of oil tube conveying gun perforation operation in the petroleum machinery.
Background technology
At present, the igniter head that uses in the oil tube conveying gun perforation operation is made up of top connection, firing pin plug, shear pin, lower contact and detonator etc., the firing pin plug bears the pressure of fluid column in the oil pipe all the time in construction operation, make the shear strength of shear pin increase and reduce gradually with the oil pipe depth of setting, occur that oil pipe anxious stops, during the phenomenon of percussion drill or the vibrations such as well of threading off, the firing pin plug is cut off shear pin easily, and the accident of by mistake detonating takes place, and causes operating personnel's injures and deaths and device damage.
The utility model content
The utility model purpose is to provide a kind of hydraulic pressure shockproof igniter head, at existing igniter head the detonate phenomenon of accident of mistake takes place easily, has improved the internal construction of igniter head, by the pressure balance effect of by-pass prot.Make the firing pin plug be in the state of stress balance all the time, when the momentum effect that is subjected to moment, the firing pin plug can not cut off shear pin, can stop finishing of the action of detonating.
The technical solution adopted in the utility model, it is the shockproof igniter head of a kind of hydraulic pressure, mainly by top connection, the sealing sliding sleeve, rupture disk, ball seat, piston type firing pin plug, parts such as center tap and lower contact constitute, top connection, center tap, it is cylindric that the lower contact profile all is, it is characterized in that top connection from top to bottom, center tap, lower contact thread seal successively connects, the outer wall of top connection bottom and center tap upper shed spiral inner wall are tightly connected, the bottom outer wall of center tap and the upper opening spiral inner wall of lower contact are tightly connected, top connection upwards has box, the oil pipe that can connect top, centre bore is arranged at the box bottom of top connection upper end, have by-pass prot on the sidewall of top connection, by-pass prot is communicated with the bottom of centre bore, the centre bore periphery of top connection is installed the sealing sliding sleeve, near the centre bore bottom design ball seat is being arranged, the center tap inwall has three step surfaces, the bottom of the step surface restriction top connection on center tap top, be sealed and installed with the upper piston of piston type firing pin plug on the inwall more than the step surface at center tap middle part, the lower piston of piston type firing pin plug is installed on the inwall of center tap bottom, the upper piston center has through hole, top connection and upper piston end face leave the gap, the end face of upper piston bottom surface and lower piston also leaves the gap, the lower contact of center tap and lower contact junction has a ring-shaped step, step is provided with shear sleeve, lower piston leans out the lower contact inner chamber from the center tap bottom, by shear pin shear sleeve and lower piston are fixed, there is the ignition contact bottom of lower piston, the step of igniting the lower contact of below, contact is provided with detonator, on the outer wall of the sealing sliding sleeve of top connection, have tank filler sleeve, pressure transmission hole is axially opened in the top connection outer wall along this device, one end of pressure transmission hole is communicated with tank filler sleeve, the bottom surface of the sensible top connection of the pressure transmission hole other end, tank filler sleeve place at the outer wall of the sealing sliding sleeve of top connection is equipped with rupture disk, and rupture disk is consistent with the pressure transmission hole phase place.Pressure transmission hole and by-pass prot phase difference are 90 °, and pressure transmission hole does not communicate with by-pass prot.
The utility model is filled with hydraulic oil by tank filler sleeve with pressure transmission hole or gap before going into the well, then dead the blocking up of tank filler sleeve screwed on.Fill with hydraulic oil in pressure transmission hole, utilize Liquid Bulk Modulus of Elasticity big, the characteristics that are difficult to compress make piston type firing pin plug be in the state of stress balance.Occur in construction operation that oil pipe anxious stops, during the phenomenon of percussion drill or the vibrations such as well of threading off, the impulse force of piston type firing pin plug self equates with the reaction force of hydraulic oil, piston type firing pin plug can not produce to bottom offset shear pin is cut off, and reaches the purpose that stops the action of detonating to be finished.
Operating principle of the present utility model, in oil pipe is gone into the well process, sealing packing of sliding sleeve and rupture disk are isolated liquid in the oil pipe and piston type firing pin plug, occur that oil pipe suddenly stops, during the phenomenon of percussion drill or the vibrations such as well of threading off, and the hydraulic oil in the pressure transmission hole stops piston type firing pin plug to move downward.When the needs perforation detonates, drop into steel ball from well head, steel ball falls in the ball seat of sealing sliding sleeve, seal by-pass prot, pressurize in oil pipe simultaneously, the rupture disk that pressure puts sealed sliding breaks, act on the piston type firing pin beyond the Great Wall through pressure transmission hole again, after shear pin cut off, piston type firing pin plug impact detonator was finished the action of detonating.
The utility model can effectively be avoided in the construction operation the detonate generation of accident of mistake, guarantees operating personnel's life security, also can carry out positive and negative circulation well cleanup operation, saves the loss on the man power and material who plays lower tubular column repeatedly and caused.
Description of drawings
Figure is a structural representation of the present utility model.
Among the above-mentioned figure, top connection 1, sealing sliding sleeve 2, tank filler sleeve 3, rupture disk 4, pressure transmission hole 5, ball seat 6, by-pass prot 7, piston type firing pin plug 8, center tap 9, shear sleeve 10, shear pin 11, detonator 12, lower contact 13, centre bore 14.
The specific embodiment
Below in conjunction with drawings and Examples the utility model structure is further specified.In the drawings, the shockproof igniter head of hydraulic pressure of the present utility model, mainly by top connection 1, sealing sliding sleeve 2, rupture disk 4, ball seat 6, piston type firing pin plug 8, parts such as center tap 9 and lower contact 13 constitute, top connection 1, center tap 9, lower contact 13 profiles all are cylindric, it is characterized in that top connection from top to bottom 1, center tap 9, lower contact 13 thread seal successively connects, the outer wall of top connection 1 bottom and center tap 9 upper shed spiral inner walls are tightly connected, the bottom outer wall of center tap 9 and the upper opening spiral inner wall of lower contact 13 are tightly connected, top connection 1 upwards has box, the oil pipe that can connect top, centre bore 14 is arranged at the box bottom of top connection 1 upper end, have by-pass prot 7 on the sidewall of top connection 1, by-pass prot 7 is communicated with the bottom of centre bore 14, centre bore 14 peripheries of top connection 1 are installed sealing sliding sleeve 2, near centre bore 14 bottom design ball seat 6 is being arranged, center tap 9 inwalls have three step surfaces, the bottom of the spacing top connection 1 of step surface on center tap 9 tops, be sealed and installed with the upper piston of piston type firing pin plug 8 on the inwall more than the step surface at center tap 9 middle parts, the lower piston of piston type firing pin plug 8 is installed on the inwall of center tap 9 bottoms, the upper piston center has through hole, top connection 1 leaves the gap with the upper piston end face, the end face of upper piston bottom surface and lower piston also leaves the gap, center tap 9 has a ring-shaped step with the lower contact of lower contact 13 junctions, step is provided with shear sleeve 10, lower piston is insinuated into the inner chamber of lower contact 13 from center tap 9 bottoms, by shear pin 11 shear sleeve 10 and lower piston are fixed, there is the ignition contact bottom of lower piston, the step of igniting the lower contact 13 of below, contact is provided with detonator 12, on the outer wall of the sealing sliding sleeve of top connection, have tank filler sleeve 3, pressure transmission hole 5 is axially opened in top connection 1 outer wall along this device, one end of pressure transmission hole 5 is communicated with tank filler sleeve 3, the bottom surface of the sensible top connection 1 of pressure transmission hole 5 other ends, tank filler sleeve 3 places at the outer wall of the sealing sliding sleeve of top connection 1 are equipped with rupture disk 4, and rupture disk 4 is consistent with pressure transmission hole 5 phase places.Pressure transmission hole and by-pass prot phase difference are 90 °, and pressure transmission hole does not communicate with by-pass prot.
The shockproof igniter head of the utility model hydraulic pressure before going into the well, by tank filler sleeve 3 with tank filler sleeve, pressure transmission hole and with gap that it is communicated with in fill with hydraulic oil, extremely the blocking up of the tank filler sleeve of screwing on then.
Claims (3)
1. shockproof igniter head of hydraulic pressure, by top connection (1), sealing sliding sleeve (2), rupture disk (4), ball seat (6), piston type firing pin plug (8), center tap (9) and lower contact (13) constitute, top connection (1), center tap (9), lower contact (13) profile all is cylindric, it is characterized in that top connection from top to bottom (1), center tap (9), lower contact (13) adopts thread seal to connect successively, the outer wall of top connection (1) bottom and center tap (9) upper shed spiral inner wall are tightly connected, the upper opening spiral inner wall of the bottom outer wall of center tap (9) and lower contact (13) is tightly connected, top connection (1) upwards has box, centre bore (14) is arranged at the box bottom of top connection (1) upper end, have by-pass prot (7) on the sidewall of top connection (1), by-pass prot (7) is communicated with the bottom of centre bore (14), centre bore (14) periphery of top connection (1) is installed sealing sliding sleeve (2), near centre bore (14) bottom design ball seat (6) is being arranged, center tap (9) inwall has three step surfaces, the bottom of the spacing top connection of step surface (1) on center tap (9) top, be sealed and installed with the upper piston of piston type firing pin plug (8) on the inwall more than the step surface at center tap (9) middle part, the lower piston of piston type firing pin plug (8) is installed on the inwall of center tap (9) bottom, the upper piston center has through hole, top connection (1) leaves the gap with the upper piston end face, the end face of upper piston bottom surface and lower piston also leaves the gap, center tap (9) has a ring-shaped step with the lower contact of lower contact (13) junction, step is provided with shear sleeve (10), lower piston is insinuated into the inner chamber of lower contact (13) from center tap (9) bottom, by shear pin (11) shear sleeve (10) and lower piston are fixed, there is the ignition contact bottom of lower piston, the step of igniting the lower contact (13) of below, contact is provided with detonator (12), on the outer wall of the sealing sliding sleeve of top connection (1), have tank filler sleeve (3), pressure transmission hole (5) is axially opened in top connection (1) outer wall along this device, one end of pressure transmission hole (5) is communicated with tank filler sleeve (3), the bottom surface of the sensible top connection (1) of pressure transmission hole (5) other end, tank filler sleeve (3) at the outer wall of the sealing sliding sleeve (2) of top connection (1) locates to be equipped with rupture disk (4), and rupture disk (4) is consistent with pressure transmission hole (5) phase place.
2. the shockproof igniter head of hydraulic pressure as claimed in claim 1 is characterized in that described pressure transmission hole (5) and by-pass prot (7) phase difference are 90 °.
3. the shockproof igniter head of hydraulic pressure as claimed in claim 1, it is characterized in that described tank filler sleeve (3), pressure transmission hole (5) and with gap that it is communicated with in fill with hydraulic oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020685512 CN201915920U (en) | 2010-12-23 | 2010-12-23 | Hydraulic shockproof igniter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020685512 CN201915920U (en) | 2010-12-23 | 2010-12-23 | Hydraulic shockproof igniter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201915920U true CN201915920U (en) | 2011-08-03 |
Family
ID=44415722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020685512 Expired - Fee Related CN201915920U (en) | 2010-12-23 | 2010-12-23 | Hydraulic shockproof igniter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201915920U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108179998A (en) * | 2017-12-12 | 2018-06-19 | 中国石油天然气集团公司 | Cable transmission pressure blasting perforation system and perforating methods |
| CN111954748A (en) * | 2018-01-31 | 2020-11-17 | 德力能欧洲有限公司 | Firing head assembly, completion assembly having a firing head assembly, and method of use |
| CN114412426A (en) * | 2022-01-04 | 2022-04-29 | 北方斯伦贝谢油田技术（西安）有限公司 | Magnetoelectric initiation device for oil and gas field, use method and initiation circuit |
-
2010
- 2010-12-23 CN CN 201020685512 patent/CN201915920U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108179998A (en) * | 2017-12-12 | 2018-06-19 | 中国石油天然气集团公司 | Cable transmission pressure blasting perforation system and perforating methods |
| CN111954748A (en) * | 2018-01-31 | 2020-11-17 | 德力能欧洲有限公司 | Firing head assembly, completion assembly having a firing head assembly, and method of use |
| CN114412426A (en) * | 2022-01-04 | 2022-04-29 | 北方斯伦贝谢油田技术（西安）有限公司 | Magnetoelectric initiation device for oil and gas field, use method and initiation circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110803 Termination date: 20151223 |
|
| EXPY | Termination of patent right or utility model |