CN2763506Y - Anti-sersmic magnetic positioner - Google Patents
Anti-sersmic magnetic positioner Download PDFInfo
- Publication number
- CN2763506Y CN2763506Y CNU2005200330915U CN200520033091U CN2763506Y CN 2763506 Y CN2763506 Y CN 2763506Y CN U2005200330915 U CNU2005200330915 U CN U2005200330915U CN 200520033091 U CN200520033091 U CN 200520033091U CN 2763506 Y CN2763506 Y CN 2763506Y
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- spring
- magnetic locator
- junction block
- contact
- magnetic
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Abstract
The utility model relates to an anti-shock magnetic locator, which is composed of a skeleton element and a probe, wherein the framework element is composed of a magnetic locator upper contact, an outer shell, a magnetic locator lower contact and a perforating gun joint which are connected in order; a differential thread coupling which is movably connected with the position between the magnetic locator lower contact and the perforating gun joint. The interior of a cavity of an upper wire holder of a probe assembly is provided with a damping spring of which both of the ends are positioned by an upper spring seat and a positioning spring seat respectively; the interior of a cavity of a lower wire holder is provided with a damping spring of which both ends are positioned by a spring seat and a spring contact head respectively; a coil assembly is fixed by screws in a coil magnetic steel protecting sleeve. With the aid of the differential thread coupling, the utility model can be disassembled conveniently to change components, and the shock absorbing property of the structure of the probe is enhanced; also, the utility model has the characteristics that the structure is compact and passive detection to the signal of the coupling can be carried out without a power supply.
Description
Technical field
The utility model relates to the magnetic locator of measuring the oil gas well depth, is specifically related to a kind of being used for is connected with perforating gun, accurately locatees for perforating gun, makes perforating gun aim at target zone, the antidetonation magnetic locator of ignition perforating gun.
Background technology
Measure the oil gas well depth and adopt magnetic locator usually, nearly all there is the problem of shock resistance difference in existing like product, and mostly is overall structure because structure is single, and renewal part is very inconvenient.Mainly show: 1, shock-damping structure is unreasonable: be installed in damping rubber cushion end face on junction block and the following junction block spring eye that to be evenly distributed with six diameters be 8mm, and after the boring of damping rubber cushion, the intensity reduction, damping effect weakens; Simultaneously, because the spring steel wire diameter is 0.8mm only, exist elastic force little, the defective of anti seismic efficiency difference; And the high-strength impact that this spring produces when being subjected to high temperature and perforating gun perforation in the down-hole, the influence of vibration very easily take place tiredly, follow the string, will appearance and top connection, lower contact imperfect earth, and the situation of transmission jitter.2, go up junction block and be connected firmly, when the contact pin of external cable cooperates with socket, hit curved easily with last connector socket employing.3, the diode connected mode is unreasonable: an end of magnetic coil directly is connected with diode, then diode is entangled on the coil surface with adhesive tape, and it is placed in the slit between coil and the instrument tube, and its weak point is: not attractive in appearance; In working order down, owing to vibrate, be prone to broken string; Maintenance is inconvenient.4, the connected mode of upper and lower joint is undesirable: lower contact is adopted with rifle head connecting rod and is threaded, and the outside adds a helmet to be protected connecting portion, and welds a helmet baffle plate on rifle head connecting rod.Its weak point is: during assembling, must be enclosed within helmet earlier on the rifle head connecting rod, weld the helmet baffle plate again, and this structure assembling trouble, and helmet can not take off, and therefore, assembly and disassembly, maintenance are all inconvenient.
The content of utility model
At the prior art above shortcomings, the purpose of this utility model is to provide a kind of anti-seismic performance good, and combine and assemble is conveniently changed the antidetonation magnetic locator of component.
The purpose of this utility model is achieved in that the antidetonation magnetic locator, form by frame element and probe two large divisions, frame element is made up of the magnetic locator top connection, shell, magnetic locator lower contact, the perforating gun connector that connect successively, also be provided with the differential thread box cupling of flexible connection between magnetic locator lower contact and perforating gun connector, the termination of perforating gun connector connects the rifle head and connects union and union thread protector.Adopt this structure can dismantle easily, change component by the differential thread box cupling.
The probe assembly comprises junction block, following junction block, magnet steel, magnet steel coil casing, coil assembly, connector lug, bilateral diode assembly; Be provided with cavity in the last junction block and put damping spring in wherein, the damping spring two ends are respectively by upper spring seat, retainer spring seat location; Be provided with cavity in the following junction block and put damping spring in wherein, the damping spring two ends are respectively by spring base and spring contact location; Establish insulation sleeve in the last junction block and axially be provided with the hole successively and fix with back-up ring, screw, locking nut; Coil assembly by screw in magnet steel coil casing; The magnet steel two ends are contact screw respectively; Bilateral diode assembly one end spring contact connects, and other end via line is connected on the spring base; The termination of spring contact connects rifle head connecting rod core by hex nut.This spline structure is more reasonable, and damping performance also is greatly improved.
The utility model can be measured oil gas casing box cupling position, generally is used for automation and follows the tracks of perforating job, and magnetic curve before measuring, thereby the sign of the actual well depth of understanding every casing coupling control well depth during as perforation improve the accuracy of perforation; And can be other and measure curves the position foundation is provided; In addition also can be according to engineering accidents such as the fracture of magnetic orientation curve detection sleeve pipe and mistake perforation positions.Can realize that a tubing string reaches the test oil well depth, two purposes of perforation.
The utility model also has the general structure compactness, does not need power supply can carry out characteristics such as passive detection to the box cupling signal.In multiple-zone well, select layer perforation arbitrarily, accurately locate, make perforating gun aim at target zone, ignite the antidetonation magnetic locator of perforating gun for perforating gun.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the utility model probe assembly structure schematic diagram.
The specific embodiment
As shown in Figure 1, the utility model is made up of frame element and probe two large divisions.It comprises that magnetic locator top connection 1, shell 5, probe assembly 6, magnetic locator lower contact 7, differential thread box cupling 9, perforating gun connector 12, rifle head connecting rod core 13, rifle head connect union (also claiming movable joint) 15, union thread protector (also claiming the movable joint protecting cover) 18, connection-core insulation tube 21, lining 25, spring 26, copper packing 2,23, crash roll 4, felt pad 17,22, compositions such as O- ring seals 3,11,16,19,20 and spring washer 24, magnetic locator top connection 1 of the present utility model is connected with the single-core cable head harness, and the rifle head connects union 15 and connects perforating gun; Housing 5 is a cylindrical hollow configuration, and probe assembly 6 is located therein, and housing 5 tops are connected with top connection 1.
As shown in Figure 2, the probe assembly comprises junction block 201, following junction block 221, magnet steel 207, magnet steel coil casing 208, connector lug 213, bilateral diode assembly 220 etc.The center of last junction block 201 is established cavity and is put damping spring 225, and damping spring 225 two ends are respectively by upper spring seat 226, retainer spring seat 224 location; The center of following junction block 221 is established cavity and is put damping spring 216 damping springs 216 two ends respectively by spring base 215 and spring contact 218 location; Last junction block 201 is loaded in the top connection, establish insulation sleeve 202,203 in the last junction block 201 and axially be provided with hole back-up ring 227, upper spring seat 226, anti-chatter spring 225, retainer spring seat 224, screw 223, fixing by locking nut 204 successively, 205,206 is respectively felt pad and copper packing among the figure; Coil assembly 209 is fixed in the magnet steel coil casing 208 by screw 210; Magnet steel 207 two ends are contact screw 223,211 respectively, and screw 211 connects spring base 215 through spring shim 212, connector lug 213 successively; Bilateral diode assembly 220 1 ends are located on the spring contact 218, and other end via line is connected to spring base 215; The termination of spring contact 218 connects rifle head connecting rod core 13 by the hexagonal spiral shell.Among the figure the 214, the 217th, insulation sleeve, the 216th, spring, the 219th, hole back-up ring.
Promptly have in the middle part of housing 207 two of magnet steel are housed between top connection and the lower contact, coil assembly 209 is installed between two blocks of magnet steel, magnet steel 209 1 sides are by fluting flush end holding screw 210 location; On bilateral diode combination 220 sockets that are connected in the top connection.Bilateral diode combination 220 places in the poly-tetrafluoro insulation sleeve, and is connected with connector lug with lead, like this, makes more compact structure, attractive in appearance; Diode obtains better protection, has improved reliability.
Last wiring cover for seat and following wiring cover for seat have been placed crash roll outward, are used to reduce axially and radially vibrations; The spring steel wire of employing Φ 3 turns to the spring of Φ 28 * 58, further weakens axial vibrations.Because the elasticity of spring is strong, screen resilience is good, can keep contacting well with last lower contact, and therefore, ground connection is effective.
The damping spring that the utility model is installed on junction block and the following junction block is reasonable in design, has improved damping effect greatly; Last junction block adopts elasticity to be connected with last connector socket, when the contact pin of external cable cooperates with socket, is not easy to be hit curved; The diode connected mode is science more, and is both attractive in appearance, easy to maintenance again; The connected mode of upper and lower joint is adopted by differential thread box cupling and rifle head connecting rod and is threaded, and only need in the protection of rifle head connecting rod union thread protector, so structure is easy to assembly, and the union thread protector can take off, and therefore, assembly and disassembly, maintenance are all very convenient.
The utility model alnico magnets are selected the novel permanent magnetic material for use, and it is strong to make it magnet magnetic induction intensity (Br), coercivity (Hcb) height, and never demagnetization, long-term use need not be magnetized.Instrument magnetic Circuit Design advanced person forces the magnetic line of force to enter sleeve pipe more, and leakage field is reduced to bottom line, to reach the purpose that improves induced signal voltage.Crash roll is made with heat resistant rubber in the permanent magnet two ends, adds bigger spring simultaneously, has both increased the shock resistance of instrument, has guaranteed the stability that signal transmits again.Adopt poly-tetrafluoro rubber to make insulation sleeve, diode assembly is inserted wherein, improved the dependability and the life-span of diode, also make structure compact more.
This instrument application electromagnetic induction principle, its induction system is mainly measured coil by two blocks of permanent magnets and one and is formed.When instrument moved up and down in sleeve pipe, if even tube wall, magnetic field was constant, the life of cutting down output of coil influence electricity.When instrument when the box cupling, the magnetic resistance change rate around the instrument makes and measures that magnetic flux density changes in the coil, the variation of magnetic flux density makes coil produce induced voltage.Induced voltage is sent to ground, terminal display system after ground logging system is handled.
Claims (2)
1, antidetonation magnetic locator, form by frame element and probe two large divisions, it is characterized in that: frame element is made up of the magnetic locator top connection (1), shell (5), magnetic locator lower contact (7), the perforating gun connector (12) that connect successively, also be provided with the differential thread box cupling (9) of flexible connection between magnetic locator lower contact (7) and perforating gun connector (12), the termination of perforating gun connector (12) connects the rifle head and connects union (15) and union thread protector (18).
2, antidetonation magnetic locator according to claim 1 is characterized in that described probe assembly (6) comprises junction block (201), following junction block (221), magnet steel (207), magnet steel coil casing (208), coil assembly (209), connector lug (213), bilateral diode assembly (220); The center of last junction block (201) is established cavity and is put damping spring (225), and damping spring (225) two ends are respectively by upper spring seat (226), retainer spring seat (224) location; The center of following junction block (221) is established cavity and is put damping spring (216), and damping spring (216) two ends are respectively by spring base (215) and spring contact (218) location; Establish insulation sleeve (202,203) in the last junction block (201) and axially be provided with the hole successively and fix with back-up ring (227), screw (223), locking nut (204); Coil assembly (209) is fixed in the magnet steel coil casing (208) by screw (210); Magnet steel (207) two ends are contact screw (223,211) respectively; Bilateral diode assembly (220) one end spring contacts (218) connect, and other end via line is connected on the spring base (215); The termination of spring contact (218) connects rifle head connecting rod core (213) by hexagonal spiral shell (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200330915U CN2763506Y (en) | 2005-01-29 | 2005-01-29 | Anti-sersmic magnetic positioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200330915U CN2763506Y (en) | 2005-01-29 | 2005-01-29 | Anti-sersmic magnetic positioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2763506Y true CN2763506Y (en) | 2006-03-08 |
Family
ID=36141052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200330915U Expired - Fee Related CN2763506Y (en) | 2005-01-29 | 2005-01-29 | Anti-sersmic magnetic positioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2763506Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108625799A (en) * | 2017-03-24 | 2018-10-09 | 中国石油化工股份有限公司 | Damper |
| CN108729889A (en) * | 2018-07-16 | 2018-11-02 | 西安物华巨能爆破器材有限责任公司 | Precisely measure and control device between comprehensive control wireless cascade communication rifle |
-
2005
- 2005-01-29 CN CNU2005200330915U patent/CN2763506Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108625799A (en) * | 2017-03-24 | 2018-10-09 | 中国石油化工股份有限公司 | Damper |
| CN108625799B (en) * | 2017-03-24 | 2020-07-07 | 中国石油化工股份有限公司 | Vibration damper |
| CN108729889A (en) * | 2018-07-16 | 2018-11-02 | 西安物华巨能爆破器材有限责任公司 | Precisely measure and control device between comprehensive control wireless cascade communication rifle |
| CN108729889B (en) * | 2018-07-16 | 2024-04-02 | 物华能源科技有限公司 | Accurate omnibearing control wireless cascade communication gun interval measurement and control 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: 20060308 Termination date: 20100129 |