CN200975242Y - Horizontal well perforating hydraulic time-delay impacting assembly - Google Patents
Horizontal well perforating hydraulic time-delay impacting assembly Download PDFInfo
- Publication number
- CN200975242Y CN200975242Y CN 200620125227 CN200620125227U CN200975242Y CN 200975242 Y CN200975242 Y CN 200975242Y CN 200620125227 CN200620125227 CN 200620125227 CN 200620125227 U CN200620125227 U CN 200620125227U CN 200975242 Y CN200975242 Y CN 200975242Y
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- time
- delay
- delayer
- pilot
- urceolus
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Abstract
The utility model discloses a horizontal-well perforation fluid time-delay percussion assembly. The oil pocket arranged in the time-delay unit (1) of the utility model is provided with a movable time-delay piston mandrel (2), and a time-delay pin (3) is arranged in the middle hole. The utility model also comprises a connecting outer-tube (6). The upper part of the time-delay unit (1) is fixed on the upper part of the connecting outer-tube (6) and connected to the upper joint (7); the rest part of the time-delay unit (1) is arranged in the connecting outer-tube (6); the connecting outer-tube (6) is provided with connecting holes (8) from the top down, communicating with the initiating through hole provided at the bottom of the time-delay unit (1) through the clearance between the connecting outer-tube (6) and the time-delay unit (1), pressure transmitting hole (9) arranged on the lower part of the time-delay unit (1) successively; the lower part of the connecting outer-tube (6) is connected to a sealed blast propagating joint-assembly (10) by closing joint, the inner part is connected to the time-delay unit (1) by closing joint; the pressure-transmitting channel in the sealed blast propagating joint-assembly (10) communicates with the initiating through hole.
Description
Technical field
The utility model relates to a kind of horizontal well perforation hydraulic pressure time-delay bump assembly, the long well section horizontal well perforation that especially the is applied to oil exploration operation of detonating.
Background technology
Along with the sustained and rapid development of national economy, energy demand presents quick growth, and the oil gas insufficiency of supply-demand is increasing, and oil gas has become the grand strategy resource that concerns China's modernization construction overall situation and national security.The scale of facing the new discovery oil field diminishes gradually, low pressure, hypotonic, thin layer heavy oil reserves proportion constantly increase, the exploration and development technical difficulty strengthens day by day, resource is taken over the reality that nervous contradiction becomes increasingly conspicuous, the application of horizontal well technology must be promoted energetically, only in this way oil and gas production and recovery ratio could be further improved.Entered since the nineties in 20th century, the extensive use and the fast development of world standard well drilling technology have made horizontal well become the important channel that the oil field development comprehensive benefit improves in various countries oil company.The U.S., Canadian annual horizontal well quantity account for the 6%-10% of total well number, and cost and output are respectively 1.2-2 times and 4-8 times of straight well, and benefit is fairly obvious.In the horizontal well drilling process, the drilling well of front, well logging, well cementation etc. have all been completed, have just waited the perforation formation testing, if perforation technical measures out of joint or that take are improper, just possible all that has been achieved is spoiled, and how important visible this link of perforation is.Horizontal well perforation well segment length reaches hundreds of rice even goes up km, for avoiding causing rifle card, sand sedimentation and end Shuitu to advance, require to adopt hydraulic pressure time-delay segmentation detonation mode, to horizontal both sides or 30 ° of directional transmissions below the both sides, could guarantee fully that like this perforating job safety is once successful.Present horizontal well perforation technology, can ensure the perforating gun level emission that reaches hundreds of rice, but when pilot and riser, exist certain work hidden danger, in the perforating job of long well section, easily cause the distortion of delayer owing to promote the long-term stretching of tubing string and compressive load, influence normal pressure transmission and delay effect, and range of application is smaller, can not extensively be extended to all kinds of operations.
Summary of the invention
The utility model provides a kind of horizontal well perforation hydraulic pressure time-delay bump assembly, it not only can strengthen the working strength of delayer, reduces accident rate, and applied range, can work under various hole diameter conditions, the perforating gun of combining different size carries out perforating job.
The utility model has adopted following technical scheme: a kind of horizontal well perforation hydraulic pressure time-delay bump assembly, it comprises delayer, in delayer, be provided with upper oil cavitie and lower oil cavitie, in two oil pockets, be provided with time-delay piston axle, in the mesopore of time-delay piston axle, be provided with the time-delay pin, time-delay piston axle can move up and down in oil pocket, between oil pocket and time-delay piston axle, be connected with shear pin, bottom at delayer is provided with pressure transmission hole, it comprises that also pilot connects urceolus, the top that pilot connects urceolus is connected with top connection, the top of delayer is fixed in the top connection, the remainder of delayer is positioned at pilot and connects urceolus, pilot connects urceolus and is connected with delayer, between pilot connection urceolus and delayer, be provided with the gap, pilot connects urceolus and is provided with pressure guide hole from top to bottom successively, pressure guide hole communicates with the through hole that detonates of delayer bottom by gap and pressure transmission hole successively, the bottom is connected with sealing transmission detonation joint assembly, sealing transmission detonation joint assembly is positioned at the bottom that pilot connects urceolus, the inside of sealing transmission detonation joint assembly is connected with the lower seal of delayer, the outside is connected urceolus with pilot and is tightly connected, be provided with pressure transmission passage and priming device in sealing transmission detonation joint assembly, the pressure transmission passage communicates with the through hole that detonates.
Described delayer bottom is connected with the sealing transmission detonation joint by sealing ring and screw thread, and sealing transmission detonation joint outside is connected urceolus with pilot and is tightly connected.Described priming device comprises the striker that detonates, and the striker that detonates is fixed in the sealing transmission detonation joint assembly by shear pin I.Be provided with the sealing device that detonates in the described sealing transmission detonation joint assembly.
After having adopted above technical scheme, the utility model is widely used, and work under various hole diameter conditions, and the perforating gun of combining different size carries out perforating job.The utility model is provided with pilot and connects urceolus outside delayer, also be provided with top connection is connected with the lifting tubing string on top, intensity in the time of can improving bump like this, avoided hydraulic delay device owing to stretching that promotes tubing string and the distortion that compressive load causes delayer influence the piston axle motion in the delayer oil pocket of delaying time, improve normal pressure transmission and delay effect, removed work hidden danger.On pilot connection urceolus, be provided with a plurality of pressure guide holes, can have prevented effectively that like this pressure guide hole from being stopped up by foreign material in the well, guarantee that annular pressure effectively passes to delayer.In delayer, being provided with time-delay pin, under equal external condition, can relying on and regulate time-delay pin size control time-delay piston axle and open the speed of service of pilot passage and control delay time, playing the fragment delay effect.The bottom of sealing transmission detonation joint assembly of the present utility model and delayer is for being sealedly and fixedly connected, the outside urceolus that is connected with pilot connects, avoided the sedimental landing of riser column wall and stopped up the pressure transmission passage, guaranteed construction quality, job success ratio can reach 100%.
Description of drawings
Fig. 1 is a structural representation of the present utility model
The specific embodiment
In Fig. 1, the utility model is a kind of horizontal well perforation hydraulic pressure time-delay bump assembly, it comprises delayer 1, in delayer 1, be provided with, lower oil cavitie 5, be provided with time-delay piston axle 2 in the oil pocket, in the mesopore of time-delay piston axle 2, be provided with time-delay pin 3, upper oil cavitie 4 communicates with lower oil cavitie 5 by the slit in the time-delay pin 3, the activity axle can move up and down in oil pocket, between oil pocket and time-delay piston axle 2, be connected with shear pin, be provided with pressure transmission hole 9 in the bottom of delayer 1, it comprises that also pilot connects urceolus 6, the top that pilot connects urceolus 6 is connected with top connection 7, the top of delayer 1 is fixed in the top connection 7, the remainder of delayer 1 is positioned at pilot and connects urceolus 6, pilot connects urceolus 6 and is connected for being similar to sleeve with delayer 1, between pilot connection urceolus 6 and delayer 1, be provided with the gap, connect urceolus 6 in pilot and be provided with pressure guide hole 8 from top to bottom successively, pressure guide hole 8 communicates with the through hole that detonates of delayer 1 bottom by gap and pressure transmission hole 9 successively, delayer 1 bottom is connected with the sealing transmission detonation joint by sealing ring and screw thread, the outside urceolus 6 that is connected with pilot of sealing transmission detonation joint connects, sealing transmission detonation joint assembly 10 is positioned at the bottom that pilot connects urceolus 6, in sealing transmission detonation joint assembly 10, be provided with pressure transmission passage and priming device, pressure transmission passage 12 communicates with the through hole that detonates, priming device comprises the striker 11 that detonates, and the striker 11 that detonates is fixed in the sealing transmission detonation joint assembly 10 by shear pin I.
When time-delay piston axle 2 is not worked, airtight pressure transmission passage 12 spaces have been constituted.Be provided with the sealing device that detonates in the sealing transmission detonation joint assembly 10.During the work of need, add the predetermined external force of design, when applying predetermined pressure at annular space, enter by pressure guide hole 8, at first, cut off the shear pin of constant time lag piston axle 2, time-delay piston axle 2 promptly upwards moves in the oil pocket through hole, the time-delay oil of upper oil cavitie 4 slowly flows to lower oil cavitie 5 by time-delay pin 3 slits, time-delay piston axle 2 is slowly up until the stroke end, and time-delay piston axle 2 breaks away from pressure transmission passages 12, and pressure transmission hole 9 is opened, pressure connects urceolus 6 by pilot successively, pressure transmission hole 9, pressure transmission passage 12 through hole that detonates, last annular pressure is cut off fixedly cutting off of striker 11, and striker 11 moves downwards, striker 11 impact initiations, detonate and finish, finish perforating job.
Claims (4)
1, a kind of horizontal well perforation hydraulic pressure time-delay bump assembly, it comprises delayer (1), in delayer (1), be provided with upper oil cavitie (4) and lower oil cavitie (5), in two oil pockets, be provided with time-delay piston axle (2), in the mesopore of time-delay piston axle (2), be provided with time-delay pin (3), time-delay piston axle (2) can move up and down in oil pocket, between oil pocket and time-delay piston axle (2), be connected with shear pin, be provided with pressure transmission hole (9) in the bottom of delayer (1), it is characterized in that it comprises that also pilot connects urceolus (6), the top that pilot connects urceolus (6) is connected with top connection (7), the top of delayer (1) is fixed in the top connection (7), the remainder of delayer (1) is positioned at pilot and connects urceolus (6), pilot connects urceolus (6) and is connected with delayer (1), between pilot connection urceolus (6) and delayer (1), be provided with the gap, pilot connects urceolus (6) and is provided with pressure guide hole (8) from top to bottom successively, pressure guide hole (8) communicates with the through hole that detonates of delayer (1) bottom by gap and pressure transmission hole (9) successively, the bottom is connected with sealing transmission detonation joint assembly (10), sealing transmission detonation joint assembly (10) is positioned at the bottom that pilot connects urceolus (6), the inside of sealing transmission detonation joint assembly (10) is connected with the lower seal of delayer (1), the outside is connected urceolus (6) with pilot and is tightly connected, be provided with pressure transmission passage (12) and priming device in sealing transmission detonation joint assembly (10), pressure transmission passage (12) communicates with the through hole that detonates.
2, horizontal well perforation hydraulic pressure time-delay bump assembly according to claim 1 is characterized in that described delayer (1) bottom is connected with the sealing transmission detonation joint by sealing ring and screw thread, and sealing transmission detonation joint outside is connected urceolus (6) with pilot and is tightly connected.
3, horizontal well perforation hydraulic pressure time-delay bump assembly according to claim 1 is characterized in that described priming device comprises the striker that detonates (11), and the striker that detonates (11) is fixed in the sealing transmission detonation joint assembly (10) by shear pin I.
4, horizontal well perforation hydraulic pressure time-delay bump assembly according to claim 1 is characterized in that being provided with the sealing device that detonates in the described sealing transmission detonation joint assembly (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620125227 CN200975242Y (en) | 2006-11-11 | 2006-11-11 | Horizontal well perforating hydraulic time-delay impacting assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620125227 CN200975242Y (en) | 2006-11-11 | 2006-11-11 | Horizontal well perforating hydraulic time-delay impacting assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200975242Y true CN200975242Y (en) | 2007-11-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620125227 Expired - Fee Related CN200975242Y (en) | 2006-11-11 | 2006-11-11 | Horizontal well perforating hydraulic time-delay impacting assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200975242Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355202A (en) * | 2016-05-10 | 2017-11-17 | 中国石油天然气股份有限公司 | Delayed ignition device and perforation tubular column |
| CN110080683A (en) * | 2019-03-09 | 2019-08-02 | 西安物华巨能爆破器材有限责任公司 | A kind of hydraulic adjustable delay boring device |
| CN111183270A (en) * | 2017-07-25 | 2020-05-19 | 狩猎巨人公司 | Hydraulic delay actuated by energy output of perforating gun |
-
2006
- 2006-11-11 CN CN 200620125227 patent/CN200975242Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355202A (en) * | 2016-05-10 | 2017-11-17 | 中国石油天然气股份有限公司 | Delayed ignition device and perforation tubular column |
| CN107355202B (en) * | 2016-05-10 | 2019-08-02 | 中国石油天然气股份有限公司 | Delayed ignition device and perforation tubular column |
| CN111183270A (en) * | 2017-07-25 | 2020-05-19 | 狩猎巨人公司 | Hydraulic delay actuated by energy output of perforating gun |
| CN110080683A (en) * | 2019-03-09 | 2019-08-02 | 西安物华巨能爆破器材有限责任公司 | A kind of hydraulic adjustable delay boring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071114 Termination date: 20091211 |