CN202493246U - Control device for multi-stage perforator of oil-gas well - Google Patents
Control device for multi-stage perforator of oil-gas well Download PDFInfo
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- CN202493246U CN202493246U CN2012200894778U CN201220089477U CN202493246U CN 202493246 U CN202493246 U CN 202493246U CN 2012200894778 U CN2012200894778 U CN 2012200894778U CN 201220089477 U CN201220089477 U CN 201220089477U CN 202493246 U CN202493246 U CN 202493246U
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Abstract
The utility model provides a control device for a multi-stage perforator of an oil-gas well, which comprises a stage perforation upper connector and a stage perforation lower connector, wherein the other end of the stage perforation upper connector is connected with an upper-stage perforator, the other end of the stage perforation lower connector is connected with a lower-stage perforator, a stage perforation control device is arranged in the stage perforation lower connector and comprises an upper-stage wiring contact pin and a lower-stage wiring contact pin, the upper-stage wiring contact pin is arranged at an upper end port of the stage perforation lower connector, the lower-stage wiring contact pin is arranged at a lower end port of the stage perforation lower connector, an on-off insertion rod is arranged between the upper-stage wiring contact pin and the lower-stage wiring contact pin, a lower end of the lower-stage wiring contact pin is connected with a telescopic connection contact pin component, and the stage perforation control device also comprises a control circuit board, and the control circuit board is used for connecting and controlling the upper-stage wiring contact pin and the lower-stage wiring contact pin. By the control device, a detonator which is just communicated by the upper stage perforator due to polydispersity of ignition current of next stage perforator is effectively prevented from being fired by mistake, the control device can be used for detecting on-off condition of a corresponding stage circuit, and the safety and reliability of the stage perforation control device is improved.
Description
Technical field
The utility model relates to perforating oil gas well equipment and instrument, relates to a kind of control device that is used for oil gas well multi-stage perforator device concretely.
Background technology
Oil gas well classification perforating technology is meant and utilizes the special control device to connect multi-stage perforator device and bridging plug instrument; Adopt cable multi-stage perforator device and G.I.H of instrument, realize each interval of interest light a fire step by step perforation and instrument acting through the control of ground perforation instrument with assembling.Need penetrate out a plurality of oil gas intervals to completion of some oil gas well, and characteristics such as each interval thickness is thin, and the interval spacing distance is big; Generally adopted cable to carry repeatedly go into the well completion perforation and engineer operation to this type of oil gas well in the past, and perhaps adopted oil pipe to connect the perforator conveying gun perforation, its shortcoming is that the cable conveying is gone into the well often; Length consuming time; Oil pipe is carried and is used a large amount of perforation dry practices or oil pipe to connect, and complex procedures is wayward.Oil gas interval classification gun perforation process technology highlights to such hole condition advantage; It can utilize special connection control device that the perforator and the engineer operation instrument of a plurality of intervals are linked together, and uses cable to carry once all G.I.Hs, and the igniting of ground perforation instrument control each time can only be ignited its next stage perforator; Other perforator ignition circuit of its higher level all is in open-circuit condition; After having put the next stage perforator, upper level perforator ignition circuit auto-closing, implementing successively can realize once going into the well accomplishes multistage ignition perforation and the bridging plug operation step by step of a plurality of intervals; Improve the operation timeliness, shortened construction period.This technology especially should be in unconventional oil-gas Layer perforating job, realizes many bunches, multi-stage perforator and bridging plug, is the crucial supporting technology that improves reservoir fracturing transformation inefficacy and effect.But above-mentioned technology is still waiting to improve on security reliability, misses the upper level perforator that detonates and rigidly connects logical detonator because when igniting, cause the polydispersity of next stage perforator initial firing current easily, causes potential safety hazard.Also lack fault detection capability etc. in addition.
In view of this, to the problems referred to above, propose a kind of realization oil gas well multi-stage perforator device reasonable in design and that effectively improve above-mentioned disappearance and connect and the control device of igniting step by step.
Summary of the invention
The purpose of the utility model is to provide a kind of control device that is used for oil gas well multi-stage perforator device; Effectively avoid the polydispersity mistake of the next stage perforator initial firing current upper level perforator that detonates to rigidly connect logical detonator; Simultaneously before the next stage perforator is not successfully lighted a fire; Its upper level perforator firing circuit breaks off always, and the detection resistance value of each grade perforator is different, can be used to detect corresponding stage connecting and disconnecting of the circuit situation; Judge which rank of perforator connection, improved the security reliability of classification perforation control device.
In order to reach above-mentioned purpose; The utility model provides a kind of control device that is used for oil gas well multi-stage perforator device; Comprise the top connection of classification perforation and the lower contact of classification perforation that link together; The other end of said classification perforation top connection connects higher level's perforator, and the said classification perforation lower contact other end then connects subordinate's perforator; Said classification perforation lower contact inside is equipped with classification perforation control device; This classification perforation control device comprises higher level's wiring contact pin that is arranged on classification perforation lower contact port place and the subordinate's wiring contact pin that is arranged on classification perforation lower contact lower port place; Be provided with the break-make inserted link between said higher level's wiring contact pin and the subordinate's wiring contact pin, the lower end of said subordinate wiring contact pin connects the flexible contact pin assembly that connects; Said classification perforation control device also comprises the control circuit board that is used for connecting and controlling higher level's wiring contact pin and subordinate's wiring contact pin.
Said control circuit board is made up of unilateral diode, detection resistance, microswitch and three winding stitches; Three winding stitches are respectively and connect stitch, connect stitch and igniting leg down, and it is parallelly connected with unilateral diode to detect resistance, and an end is contact fire leg simultaneously; Behind another termination detonator of unilateral diode and ground connection; Detect the direct ground connection of the resistance other end, under the control circuit board of the first order, connect stitch in the said multi-stage perforator device and connect the unilateral diode and detection resistance of parallel connection, the control circuit board of other grades directly connects subordinate's wiring contact pin; And each grade perforator unilateral diode closure adjacent level is staggered, and it is different to detect resistance.
Said higher level's wiring contact pin is two and is installed in the duct of set two-track tape internal thread of patchboard and sealing surface; Said higher level's wiring contact pin upper end connects respectively goes up through track and ignition lead, and the lower end connects respectively and connects stitch and igniting leg on the control circuit board; The said patchboard of going up is fixed in the classification perforation lower contact inner chamber by last retainer ring.
Said control circuit board is fixed on the retaining thread hole in the classification perforation lower contact inner chamber through middle fixed disk, and said middle fixed disk is provided with six ducts.
Said subordinate wiring contact pin is installed in and touches in the piston, and said shake-up piston arranged outside two seals ring recess and one group of pin hole are provided with together the duct with internal thread and sealing surface, right side port large scale chamfering in the middle of the right ends; Said subordinate wiring contact pin upper end is connected the following of control circuit board and connects on the stitch, and the lower end connects through track down, and left end one side is provided for connecting the internal thread hole of break-make inserted link; Said break-make inserted link left end is provided with groove, right-hand member is provided with external screw thread, puts hold-down nut and is fixed on shake-up piston left end one side.
Said flexible connection contact pin assembly is installed in the tapped duct of offering on the lower fixed disk, and said flexible connection contact pin assembly arranged outside is used to install and fix external screw thread.
Said flexible connection contact pin assembly is made up of bakelite, last contact pin, spring, following contact pin, and last contact pin, spring, following contact pin are installed in the bakelite, wherein play contact pin to stretch, and are used to connect next stage perforator through track contact.
Said classification perforation top connection left end is provided for connecting the external screw thread and the two seals ring recess of realizing sealing of higher level's perforator; Said classification perforation top connection right-hand member is provided for connecting the internal thread and the inner sealing surface of classification perforation lower contact; Said classification perforation top connection middle part is provided with wiring hole, and inboard, wiring hole duct is provided with sealing surface, the arranged outside internal thread, and installation is provided with two seals ring recess and externally threaded plug in the wiring hole duct; Said classification perforation top connection set inside through channel.
Said classification perforation lower contact left end is provided for connecting the external screw thread and the two seals ring recess of realizing sealing of classification perforation top connection; Said classification perforation lower contact right-hand member is provided for connecting the external screw thread and the two seals ring recess of realizing sealing of subordinate's perforator, and the outer middle side part of said classification perforation lower contact is provided with Card trough; Said classification perforation lower contact set inside different inner diameters cylinder type cavity with the level once is provided with the fixing retaining thread hole of the internal thread of retainer ring, the sealing surface of going up patchboard, the installing space of control circuit board, middle fixed disk, the penetrating via of break-make inserted link, the sealing surface that touches piston, bayonet lock nail step, the fixing internal thread of lower fixed disk gone up from left to right.
The utility model adopts ground perforation instrument output forward or negative sense direct current to accomplish igniting; Adopt positive negative electricity cross-point fire between every grade of control device is adjacent; More effectively avoid the polydispersity mistake of the next stage perforator initial firing current upper level perforator that detonates to rigidly connect logical detonator, simultaneously at the next stage perforator by before the successful igniting, its upper level perforator firing circuit breaks off always; And the detection resistance value of each grade perforator is different; Can be used to detect corresponding stage connecting and disconnecting of the circuit situation, judge which rank of perforator connection, improve the security reliability of classification perforation control device.
In a word, the utility model can link together the multi-stage perforator device effectively, and controls the multi-stage perforator device safely and reliably and realize classification perforation step by step, has simplified working procedure, has shortened construction period; Classification perforation controlling organization and circuit unit decoration structure features simple design are reasonable, and recycling rate of waterused is high, and cost is low, are prone to realize.
Description of drawings
Fig. 1 is the cut-open view of final assembly of the utility model embodiment;
Fig. 2 is top connection of classification perforation and the plug structural representation of the utility model embodiment;
Fig. 3 is the classification perforation lower contact structural representation of the utility model embodiment;
Fig. 4 is the control circuit board wiring diagram of the utility model embodiment.
The specific embodiment
With reference to Fig. 1; A kind of control device that is used for oil gas well multi-stage perforator device; Structure is connected the superior and the subordinate's perforator by classification perforation top connection 1 with classification perforation lower contact 2; Classification perforation controlling organization is installed in the classification perforation lower contact 2, wherein classification perforation controlling organization by last retainer ring 4, go up patchboard 5, higher level's wiring contact pin 6, control circuit board 7, middle fixed disk 8, break-make inserted link 9, touch piston 10, subordinate's wiring contact pin 11, lower fixed disk 12, the flexible contact pin assembly 13 that connects form.
Middle fixed disk 8 in the said classification perforation controlling organization is provided with six ducts, and wherein control circuit board 7 is fixed on the classification perforation lower contact 2 inboard retaining thread holes 209 through middle fixed disk 8.
Break-make inserted link 9 left ends in the said classification perforation controlling organization are provided with groove, right-hand member is provided with external screw thread, puts hold-down nut, are fixed on to touch piston 10 left ends one side.
Shake-up piston 10 arranged outside two seals ring recess and one group of pin hole in the said classification perforation controlling organization; Duct with internal thread and sealing surface is set in the middle of the right ends together; Right side port large scale chamfering; Be used to install subordinate's wiring contact pin 11, its upper end is connected the following of control circuit board 7 and connects on the stitch, and the lower end connects through track down; Left end one side is provided with internal thread hole, is used to connect break-make inserted link 9.
One band internal thread duct is set in the middle of lower fixed disk 12 right ends in the said classification perforation controlling organization, is used to install the flexible contact pin assembly 13 that connects, the arranged outside external screw thread is used to install and fix.
Flexible connection contact pin assembly 13 in the said classification perforation controlling organization is made up of bakelite, last contact pin, spring, following contact pin; Last contact pin, spring, following contact pin are installed in the bakelite; Wherein play contact pin to stretch, be used to connect next stage perforator through track contact.
Last retainer ring 4 arranged outside external screw threads in the said classification perforation controlling organization are used to install and fix.
Last patchboard 5 in the said classification perforation controlling organization is provided with the duct of two-track tape internal thread and sealing surface; Be used to install two higher level's wiring contact pins 6; The upper end connect to be gone up through track and ignition lead respectively, and the lower end connects respectively and connects stitch and igniting leg on the control circuit board 7.
Referring to Fig. 2, said classification perforation top connection 1, left end is provided with external screw thread 101 and two seals ring recess 102, is used to connect higher level's perforator and realizes sealing; Right-hand member is provided with internal thread 106 and inner sealing surface 107, is used to connect the lower contact of classification perforation; The middle part is provided with wiring hole 103, and inboard, wiring hole duct is provided with sealing surface 105, arranged outside internal thread 104, and the plug 3 that is provided with two seals ring recess 302 and external screw thread 301 is installed, be convenient to the superior and the subordinate's perforator connecting line; Set inside through channel 108 is convenient to the superior and the subordinate's perforator connecting line.
Referring to Fig. 3; Said classification perforation lower contact 2; Left end is provided with external screw thread 201 and two seals ring recess 202, is used to connect classification perforation top connection 1 and realizes sealing, and right-hand member is provided with external screw thread 205 and two seals ring recess 204; Be used to connect subordinate's perforator and realize sealing, outer middle side part is provided with Card trough 203; Set inside different inner diameters cylinder type cavity with the level; Once be provided with the fixing installing space 208 of the internal thread 206 of retainer ring 4, the sealing surface 207 of going up patchboard 5, control circuit board 7, the retaining thread hole 209 of middle fixed disk 8, the penetrating via 213 of break-make inserted link 9, the sealing surface 210 that touches piston 10, bayonet lock nail step 211, the fixing internal thread 212 of lower fixed disk 12 gone up from left to right, more than all be used to install classification perforation controlling organization.
Referring to Fig. 4; Control circuit board 7 in the said classification perforation controlling organization is made up of unilateral diode, detection resistance, microswitch and three winding stitches; Three winding stitches are respectively and connect stitch, connect stitch and igniting leg down, and it is parallelly connected with unilateral diode to detect resistance, and an end is contact fire leg simultaneously; Behind another termination detonator of unilateral diode and ground connection; Detect the direct ground connection of the resistance other end, wherein connect the unilateral diode and detection resistance of parallel connection except that first order control circuit board connects stitch for 7 times, other grades control circuit board 7 directly connects subordinate's wiring contact pin; And each grade perforator unilateral diode closure adjacent level is staggered, and it is different to detect resistance.
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, specifically describe the joint construction of each several part:
1. classification perforation top connection 1 embodiment:
Sealing ring is installed in plug 3 and classification perforation top connection 1 corresponding seal groove 302 and 202, and plug 3 screws in wiring hole 103 positions of classification perforation top connections 1; And classification perforation top connection 1 external screw thread 101 is screwed in higher level's perforator lower end, higher level's perforator through track and ignition lead penetrate in the through channel 108 of classification perforation top connection 1.
2. classification perforation lower contact 2 embodiments:
Install two seals circle, four shear pins at shake-up piston 10 earlier; Subordinate's wiring contact pin 11 and break-make inserted link 9 are installed in shake-up piston relevant position; Then break-make inserted link 9 will touch towards a left side piston 10 from classification perforation lower contact 2 right-hand members disclose into, shear pin just in time drops on the step between 211 and 210; Control circuit board 7 one fixing feet are fixed on the middle fixed disk 8; Control circuit board 7 disclose towards a left side from classification perforation lower contact 2 left ends into; Drop on the step between 208 and 213, last twice fixed screw is fixed on 209, and lets subordinate wiring contact pin 11 upper ends and break-make inserted link 9 left ends therefrom stretch out in fixed disk 8 corresponding ducts; Following wiring contact pin 11 is connected to the following of control circuit board 7 and connects on the stitch; The break-make inserted link squeezes on microswitch, and microswitch is depressed, simultaneously fixing control circuit board 7 another fixing feet; Get two higher level's wiring contact pins 6 and be installed in patchboard 5 corresponding ducts; Last patchboard 5 is installed the two seals circle; And from classification perforation lower contact 2 left ends disclose into, disclose preceding two higher level's wiring contact pins 5 be connected on respectively control circuit board 7 on connect stitch with the igniting leg on; The flexible connection contact pin assembly 13 that assembles is installed on the lower fixed disk 12; Lower fixed disk 12 is screwed on 212 from classification perforation lower contact 2 right-hand members; The fixing piston 10 that touches; And flexible the last contact pin that connects in the contact pin assembly 13 is connected with the lower end of subordinate wiring contact pin 11, last retainer ring 4 is screwed on 206 from classification perforation lower contact 2 left ends, fixes patchboard 5; At last classification perforation lower contact 2 right-hand members 205 are screwed in subordinate perforator upper end.
3. the upper and lower splice combinations embodiment of classification perforation:
Classification perforation lower contact 2 left ends 201 are screwed on the right-hand member 106 of classification perforation top connection 1; Penetrate in the through channel 108 of classification perforation top connection 1 with extended line on two higher level's wiring contact pins 6 of time stage perforation lower contact 2, turn on plug 3, take out connecting line up and down; And with the firmly connection mutually separately of corresponding line; Be wrapped with the heatproof insulating tape, carry out insulation, at last plug 3 is screwed in the wiring hole 103.
According to the above-described control device that is used for oil gas well multi-stage perforator device, its control method is divided into following step:
The multi-stage perforator device is connected by classification perforation control device, and the shake-up piston 10 before the first order perforator perforation on its each grade classification perforation control device is in the home position, by dowel fixes;
Microswitch on the control circuit board 7 is depressed; Make and connect stitch and connect down the stitch connection; Initial firing current can be transferred on the detonator of first order perforator through the up/down perforation line, and the control circuit board 7 igniting leg on other grades classification perforation controlling organization all open circuit with through track this moment;
When carrying out first order perforator perforation, other grades perforator is all by effective shielding, after accomplishing first order perforator perforation; The perforator perforation, perforating fluid pours in the first order perforator, under the borehole pressure effect; Shake-up piston 10 in the first order classification perforation controlling organization moves upward, and cuts off pin, and break-make inserted link 9 moves upward; Microswitch ejects also and slips in the groove on the break-make inserted link 9, connects stitch in the first order classification perforation controlling organization and connects stitch down and forever break off, and reliably connect with the leg of lighting a fire; This moment, the igniter pellet of second level perforator was switched on, and other levels are still all broken off;
Operation connects and the control of multistage ignition perforation step by step the multi-stage perforator device with regard to realizing successively.
Step according to said method; This classification perforation control device adopts ground perforation instrument output forward or negative sense direct current to accomplish igniting, adopts positive negative electricity cross-point fire between every grade of control device is adjacent, more effectively avoids the polydispersity mistake of the next stage perforator initial firing current upper level perforator that detonates to rigidly connect logical detonator; Simultaneously before the next stage perforator is not successfully lighted a fire; Its upper level perforator firing circuit breaks off always, and the detection resistance value of each grade perforator is different, can be used to detect corresponding stage connecting and disconnecting of the circuit situation; Judge which rank of perforator connection, improved the security reliability of classification perforation control device.
The above is merely the preferred embodiment of the utility model, and non-in order to limit the claim of the utility model, the equivalence of the patent spirit of other utilization the utility model changes, and all should all belong to the claim of the utility model.
Claims (9)
1. control device that is used for oil gas well multi-stage perforator device; Comprise the classification perforation top connection (1) and the classification perforation lower contact (2) that link together; The other end of said classification perforation top connection (1) connects higher level's perforator, and said classification perforation lower contact (2) other end then connects subordinate's perforator; It is characterized in that; Said classification perforation lower contact (2) inside is equipped with classification perforation control device; This classification perforation control device comprises the higher level's wiring contact pin (6) that is arranged on classification perforation lower contact (2) port place and is arranged on subordinate's wiring contact pin (11) at classification perforation lower contact (2) lower port place; Be provided with break-make inserted link (9) between said higher level's wiring contact pin (6) and the subordinate's wiring contact pin (11), the lower end of said subordinate's wiring contact pin (11) connects the flexible contact pin assembly (13) that connects; Said classification perforation control device also comprises the control circuit board (7) that is used for connecting and controlling higher level's wiring contact pin (6) and subordinate's wiring contact pin (11).
2. a kind of control device that is used for oil gas well multi-stage perforator device according to claim 1; It is characterized in that, said control circuit board (7) by unilateral diode, detect resistance, microswitch and three winding stitches and form, three winding stitches are respectively and connect stitch, connect the stitch and the leg of lighting a fire down; It is parallelly connected with unilateral diode to detect resistance; One end is contact fire leg simultaneously, behind another termination detonator of unilateral diode and ground connection, detects the direct ground connection of the resistance other end; Under the control circuit board (7) of the first order, connecting stitch in the said multi-stage perforator device connects the unilateral diode and detection resistance of parallel connection; The control circuit board of other grades (7) directly connects subordinate's wiring contact pin, and each grade perforator unilateral diode closure adjacent level is staggered, and it is different to detect resistance.
3. a kind of control device that is used for oil gas well multi-stage perforator device according to claim 2; It is characterized in that; Said higher level's wiring contact pin (6) is two and is installed in the duct of set two-track tape internal thread of patchboard (5) and sealing surface; Said higher level's wiring contact pin (6) upper end connects respectively goes up through track and ignition lead, and the lower end connects respectively and connects stitch and igniting leg on the control circuit board (7); The said patchboard (5) of going up is fixed in classification perforation lower contact (2) inner chamber by last retainer ring (4).
4. a kind of control device that is used for oil gas well multi-stage perforator device according to claim 2; It is characterized in that; Said control circuit board (7) is fixed on the retaining thread hole (209) in classification perforation lower contact (2) inner chamber through middle fixed disk (8), and said middle fixed disk (8) is provided with six ducts.
5. a kind of control device that is used for oil gas well multi-stage perforator device according to claim 2; It is characterized in that; Said subordinate's wiring contact pin (11) is installed in and touches in the piston (10); Said shake-up piston (10) arranged outside two seals ring recess and one group of pin hole are provided with together the duct with internal thread and sealing surface in the middle of the right ends, right side port large scale chamfering; Said subordinate's wiring contact pin (11) upper end is connected the following of control circuit board (7) and connects on the stitch, and the lower end connects through track down, and left end one side is provided for connecting the internal thread hole of break-make inserted link (9); Said break-make inserted link (9) left end is provided with groove, right-hand member is provided with external screw thread, puts hold-down nut and is fixed on shake-up piston (10) left end one side.
6. a kind of control device that is used for oil gas well multi-stage perforator device according to claim 2; It is characterized in that; Said flexible connection contact pin assembly (13) is installed in the tapped duct of offering on the lower fixed disk (12), and said flexible connection contact pin assembly (13) arranged outside is used to install and fix external screw thread.
7. a kind of control device that is used for oil gas well multi-stage perforator device according to claim 6; It is characterized in that; Said flexible connection contact pin assembly (13) is made up of bakelite, last contact pin, spring, following contact pin; Last contact pin, spring, following contact pin are installed in the bakelite, wherein play contact pin to stretch, and are used to connect next stage perforator through track contact.
8. a kind of control device that is used for oil gas well multi-stage perforator device according to claim 1; It is characterized in that said classification perforation top connection (1) left end is provided for connecting the external screw thread (101) of higher level's perforator and realizes the two seals ring recess (102) of sealing; Said classification perforation top connection (1) right-hand member is provided for connecting the internal thread (106) and the inner sealing surface (107) of classification perforation lower contact; Said classification perforation top connection (1) middle part is provided with wiring hole (103); Wiring hole (103) inboard, duct is provided with sealing surface (105); Arranged outside internal thread (104), and the plug (3) that is provided with two seals ring recess (302) and external screw thread (301) is installed in wiring hole (103) duct; Said classification perforation top connection (1) set inside through channel (108).
9. a kind of control device that is used for oil gas well multi-stage perforator device according to claim 1; It is characterized in that the two seals ring recess (202) that said classification perforation lower contact (2) left end is provided for connecting the external screw thread (201) of classification perforation top connection (1) and realizes sealing; Said classification perforation lower contact (2) right-hand member is provided for connecting the external screw thread (205) of subordinate's perforator and realizes the two seals ring recess (204) of sealing, and the outer middle side part of said classification perforation lower contact (2) is provided with Card trough (203); Said classification perforation lower contact (2) set inside different inner diameters cylinder type cavity with the level once is provided with the fixing retaining thread hole (209) of the internal thread (206) of retainer ring (4), the sealing surface (207) of going up patchboard (5), the installing space (208) of control circuit board (7), middle fixed disk (8), the penetrating via (213) of break-make inserted link (9), the sealing surface (210) that touches piston (10), bayonet lock nail step (211), the fixing internal thread (212) of lower fixed disk (12) gone up from left to right.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200894778U CN202493246U (en) | 2012-03-12 | 2012-03-12 | Control device for multi-stage perforator of oil-gas well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200894778U CN202493246U (en) | 2012-03-12 | 2012-03-12 | Control device for multi-stage perforator of oil-gas well |
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| Publication Number | Publication Date |
|---|---|
| CN202493246U true CN202493246U (en) | 2012-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200894778U Expired - Lifetime CN202493246U (en) | 2012-03-12 | 2012-03-12 | Control device for multi-stage perforator of oil-gas well |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306646A (en) * | 2012-03-12 | 2013-09-18 | 中国石油化工股份有限公司 | Control device and control method thereof for oil-gas well multistage perforator |
| CN103485750A (en) * | 2013-09-18 | 2014-01-01 | 中国石油集团川庆钻探工程有限公司测井公司 | Intermediate connector device for multistage ignition perforating |
| CN105178923A (en) * | 2015-09-29 | 2015-12-23 | 中石化石油工程技术服务有限公司 | Multi-stage perforation redundancy ignition control device |
| CN111946304A (en) * | 2020-09-21 | 2020-11-17 | 成都若克菲斯科技有限公司 | Detonating cord-free perforating gun for oil-gas well perforation |
-
2012
- 2012-03-12 CN CN2012200894778U patent/CN202493246U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306646A (en) * | 2012-03-12 | 2013-09-18 | 中国石油化工股份有限公司 | Control device and control method thereof for oil-gas well multistage perforator |
| CN103485750A (en) * | 2013-09-18 | 2014-01-01 | 中国石油集团川庆钻探工程有限公司测井公司 | Intermediate connector device for multistage ignition perforating |
| CN105178923A (en) * | 2015-09-29 | 2015-12-23 | 中石化石油工程技术服务有限公司 | Multi-stage perforation redundancy ignition control device |
| CN105178923B (en) * | 2015-09-29 | 2019-03-22 | 中石化石油工程技术服务有限公司 | Multi-stage perforation redundancy ignition control device |
| CN111946304A (en) * | 2020-09-21 | 2020-11-17 | 成都若克菲斯科技有限公司 | Detonating cord-free perforating gun for oil-gas well perforation |
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