CN2220646Y - Multiple excitation explosive focus device for deep well - Google Patents
Multiple excitation explosive focus device for deep well Download PDFInfo
- Publication number
- CN2220646Y CN2220646Y CN 95239788 CN95239788U CN2220646Y CN 2220646 Y CN2220646 Y CN 2220646Y CN 95239788 CN95239788 CN 95239788 CN 95239788 U CN95239788 U CN 95239788U CN 2220646 Y CN2220646 Y CN 2220646Y
- Authority
- CN
- China
- Prior art keywords
- steel pipe
- rifle body
- protection steel
- detonator
- electric detonator
- Prior art date
- 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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- Geophysics And Detection Of Objects (AREA)
Abstract
The utility model relates to a multiple excitation explosive focus device for deep wells, which is a focus in wells for seismic exploration. The middle part of a gun body is provided with multi-head spiral grooves; the both ends are tightly sheathed with vibration damping hard rubber rings; the upper and the lower ends are provided with support connector pins. Firer articles composed of high temperature and high pressure shock resistance detonators and detonating ropes are built in the corresponding spiral grooves of the gun body. The high temperature and high pressure shock resistance detonator is composed of an electric detonator, a protective steel pipe and a plastic pipe.
Description
The utility model relates to focus in the used well of a kind of coal, oil, gas field crosshole seismic exploration.
Focus is representative with air gun and piezoelectric type focus in the existing domestic and international well, the former cost height, and maximum working depth has only 1500 meters, has limited its further use.A little less than latter's energy, and its working depth is influenced by ambient temperature, at home from still all being difficult to realize on the scientific and technological level economically.
The purpose of this utility model is exactly in order to address the above problem, and provides the deep-well that a kind of cost is low, working depth is dark, easy to use repeatedly to excite the explosive source device.
Technical solution of the present utility model:
A kind of deep-well repeatedly excites the explosive source device, it is made up of rifle body (1) and the shock-resistant detonator of High Temperature High Pressure (2) and primacord fuse (3), it is characterized in that rifle body (1) has the cylinder of multi-head spiral groove (4) for the middle part, its two ends appearance closely is set with damping rubberite circle (5), and rifle body (1) upper and lower end is equipped with the support latch (6) of length greater than rifle body (1) external diameter, makes that rifle body (1) does not contact with the borehole wall; The shock-resistant detonator of High Temperature High Pressure (2) is by electric detonator (7); protection steel pipe (8); plastic tube (9) constitutes; electric detonator (7) is positioned at protection steel pipe (8); protection steel pipe (8) one ends are sealed end; be provided with spring (10) between the corresponding end of sealing end and electric detonator (7); and between be filled with lubricating oil (11) in the cavity; the lead-in wire (12) of electric detonator (7) is drawn from the sealed end of protection steel pipe (8); the other end of corresponding electric detonator (7); in protection steel pipe (8), be provided with primacord fuse (3); the outer tight seal of protection steel pipe (8) is set with plastic tube (9); and be filled with fluid sealant (13) in one of the corresponding protection of plastic tube (9) steel pipe (8) sealed end and form another sealed end; in case FIH enters; the external diameter of protection steel pipe (8) and plastic tube (9) thereof is less than the barrel of the helicla flute (4) at rifle body (1) middle part; and the length of protection steel pipe (8) is less than the helical pitch of helicla flute (4), and the priming system that shock-resistant detonator of High Temperature High Pressure (2) and primacord fuse (3) are formed just is mounted in the corresponding helicla flute (4) of rifle body (1).
The utility model has been filled up the blank of focus in China's production seismology well, utilizes it to gather coal, oil, gas field well earthquake data.The utility model is simple in structure, produces easily, and is with low cost, utilizes existing well logging exploring equipment and priming system promptly to can be made into, and it to have an energy big, working depth is dark, can reach 4500 meters, low frequency is abundant, and is safe and reliable, characteristics such as long service life.
Fig. 1 is a lance body structure synoptic diagram of the present utility model;
Fig. 2 is the structural representation of shock-resistant detonator of High Temperature High Pressure of the present utility model and primacord fuse.
As Fig. 1, the support latch (6) that the utility model rifle body (1) upper and lower end is provided with preferably constitutes by two mutually orthogonal pins, this criss-cross support latch (6) contacts with the borehole wall, just guaranteed that rifle body (1) can contact the borehole wall in no instance, can avoid the friction of the rifle body (1) and the borehole wall.When the utility model uses such as Fig. 1,2, to embed by the priming system that shock-resistant detonator of High Temperature High Pressure (2) and primacord fuse (3) are formed in the helicla flute (4) of rifle body (1), a common rifle body (1) has five helicla flutes (4), then all embed priming system separately in five helicla flutes (4), and fix with unit clamp, also available wire or iron wire are fixed.Can send into rifle body (1) in the well by logging cable this moment, arrive designated depth after, by detonate arbitrary priming system in five helicla flutes (4) of firing system, its shot break is received by seismicrophone.Because electric detonator (7) (available No. 8 electric detonators) adopts the protection of protection steel pipe (8) and plastic tube (9); plastic tube (9) has the effect that reduces transverse vibration; the cushioning effect of spring (10) and lubricating oil (11) in addition; then arbitrary priming system explosion time, other each priming system of not lighting a fire is all unaffected.Simultaneously because the effect of the damping rubberite circle (5) at rifle body (1) two ends can overcome the influence that the borehole wall caused of priming system explosion time rifle body (1) bump.The utility model is except that priming system of blast like this, and other parts are all unaffected.Then rifle body (1) is dropped to another designated depth again, carry out same blast operation.By that analogy, can finish the blast operation of five different depths continuously.Need thousands of demolition points in the common well, then a plurality of rifle bodies (1) can be connected in series bunchiness and go into the well, the blast operation of exploding successively then and finishing each point.
Claims (2)
1, a kind of deep-well repeatedly excites the explosive source device, it is made up of rifle body (1) and the shock-resistant detonator of High Temperature High Pressure (2) and primacord fuse (3), it is characterized in that rifle body (1) has the cylinder of multi-head spiral groove (4) for the middle part, its two ends appearance closely is set with damping rubberite circle (5), and rifle body (1) upper and lower end is equipped with the support latch (6) of length greater than rifle body (1) external diameter, makes that rifle body (1) does not contact with the borehole wall; The shock-resistant detonator of High Temperature High Pressure (2) is by electric detonator (7); protection steel pipe (8); plastic tube (9) constitutes; electric detonator (7) is positioned at protection steel pipe (8); protection steel pipe (8) one ends are sealed end; be provided with spring (10) between the corresponding end of sealing end and electric detonator (7); and between be filled with lubricating oil (11) in the cavity; the lead-in wire (12) of electric detonator (7) is drawn from the sealed end of protection steel pipe (8); the other end of corresponding electric detonator (7); in protection steel pipe (8), be provided with primacord fuse (3); the outer tight seal of protection steel pipe (8) is set with plastic tube (9); and be filled with fluid sealant (13) in one of the corresponding protection of plastic tube (9) steel pipe (8) sealed end and form another sealed end; in case FIH enters; the external diameter of protection steel pipe (8) and plastic tube (9) thereof is less than the barrel of the helicla flute (4) at rifle body (1) middle part; and the length of protection steel pipe (8) is less than the helical pitch of helicla flute (4), and the priming system that shock-resistant detonator of High Temperature High Pressure (2) and primacord fuse (3) are formed just is mounted in the corresponding helicla flute (4) of rifle body (1).
2, repeatedly excite the explosive source device by the described deep-well of claim 1, it is characterized in that the support latch (6) that rifle body (1) upper and lower end is provided with preferably constitutes by two mutually orthogonal pins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95239788 CN2220646Y (en) | 1995-05-19 | 1995-05-19 | Multiple excitation explosive focus device for deep well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95239788 CN2220646Y (en) | 1995-05-19 | 1995-05-19 | Multiple excitation explosive focus device for deep well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2220646Y true CN2220646Y (en) | 1996-02-21 |
Family
ID=33881504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95239788 Expired - Fee Related CN2220646Y (en) | 1995-05-19 | 1995-05-19 | Multiple excitation explosive focus device for deep well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2220646Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100487485C (en) * | 2000-10-30 | 2009-05-13 | 维斯特恩格科地震控股有限公司 | Method for customizing seismic explosives |
| CN102435112A (en) * | 2011-08-18 | 2012-05-02 | 中国科学技术大学 | Underwater continuous pulse shock wave generator |
-
1995
- 1995-05-19 CN CN 95239788 patent/CN2220646Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100487485C (en) * | 2000-10-30 | 2009-05-13 | 维斯特恩格科地震控股有限公司 | Method for customizing seismic explosives |
| CN102435112A (en) * | 2011-08-18 | 2012-05-02 | 中国科学技术大学 | Underwater continuous pulse shock wave generator |
| CN102435112B (en) * | 2011-08-18 | 2013-11-06 | 中国科学技术大学 | Underwater continuous pulse shock wave generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |