CN203547729U - High-reliability tracing ejector for well logging - Google Patents
High-reliability tracing ejector for well logging Download PDFInfo
- Publication number
- CN203547729U CN203547729U CN201320617560.2U CN201320617560U CN203547729U CN 203547729 U CN203547729 U CN 203547729U CN 201320617560 U CN201320617560 U CN 201320617560U CN 203547729 U CN203547729 U CN 203547729U
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- China
- Prior art keywords
- ejector
- well logging
- instrument
- reliability
- tracing
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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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- Devices For Use In Laboratory Experiments (AREA)
Abstract
The utility model provides a high-reliability tracing ejector for well logging. The high-reliability tracing ejector comprises a universal joint, an instrument outer tube, a circuit control panel, a motor assembly, a lead screw transmission mechanism, a piston rod, an injection source cylinder, an ejection joint and the like. When an instrument is energized, the motor assembly rotates so as to drive the lead screw transmission mechanism to push the piston rod to move up and down, and liquid is sucked or discharged; when the lead screw transmission mechanism rotates to the top end or the tail end, a spring contact on a limiting switch can be touched, the instrument is grounded, and the motor assembly stops working. The high-reliability tracing ejector is good in anti-corrosion performance, can be used for continuously performing well logging of more than twenty wells without leakage, and is high in reliability.
Description
Technical field
The utility model belongs to oil well logging field, is specifically related to a kind of spike ejector of the use of logging well.
Background technology
The spike ejector that oil field is used at home at present all adopts fluororubber O shape circle sealing means on movable sealing structure, sheathing material adopts stainless steel or titanium alloy, selected fluororubber O shape circle and sheathing material are (175 ℃ of HTHPs, 100Mpa) lower anti-hydrochloric acid, thiocyanogen corrosive nature are poor, just easily leak after generally surveying 2 to 3 mouthfuls of wells.In screw mandrel motion process, generally adopt the mode of the disconnected bus current of contact limit switch next spacing, this switch is fragile by depressing for a long time, poor reliability.
Utility model content
The purpose of this utility model is to overcome prior art deficiency, and a kind of highly reliable spike ejector is provided.
The utility model is achieved through the following technical solutions:
A kind of highly reliable spike ejector, comprise universal joint, instrument outer tube, circuit control panel, electric machine assembly, lead-screw drive mechanism, piston rod, note source cylinder, jet-sub etc., when instrument is powered, thereby electric machine assembly rotates and drives lead-screw drive mechanism promotion piston rod to move up and down, suck or discharge liquid, when lead-screw drive mechanism turns to top or tail end, can touch the spring contact on limit switch, instrument ground, electric machine assembly quits work.
As preferably, this highly reliable spike ejector adopts spring energy-storage circle in movable sealing, and these circle nonmetals partly adopt PEEK material, and spring adopts hastelloy nickel-bass alloy material.
As preferably, this highly reliable spike ejector and radioisotope liquid contact portion material all adopt hastelloy nickel-bass alloy material.
The beneficial effects of the utility model are:
1, the utility model adopts earthing on limit method, rather than the disconnected bus current method generally adopting, and spacing contact adopts self made spring contact, dependable performance.
2, the PEEK material that the utility model adopts and hastelloy nickel-bass alloy material HTHP (175 ℃, 100MPa) lower anti-hydrochloric acid, thiocyanogen corrosive nature are good, can continuous logging more than 20 mouthfuls, and do not leak, reliability is high.
accompanying drawing explanation:
Fig. 1 is epimere sectional drawing of the present utility model;
Fig. 2 is stage casing of the present utility model sectional drawing;
Fig. 3 is hypomere sectional drawing of the present utility model;
Description of reference numerals: universal joint 1, instrument outer tube 2, circuit control panel 3, electric machine assembly 4, lead-screw drive mechanism 5, limit switch 6, joint 7, piston rod 8, note source cylinder 9, jet-sub 10.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Referring to Fig. 1, Fig. 2, Fig. 3, this spike ejector is mainly partly comprised of universal joint 1, instrument outer tube 2, circuit control panel 3, electric machine assembly 4, lead-screw drive mechanism 5, piston rod 8, note source cylinder 9, jet-sub 10 etc., when instrument is powered, thereby electric machine assembly 4 rotates and drives lead-screw drive mechanism 5 promotion piston rods 8 to move up and down, and sucks or discharge liquid.When lead-screw drive mechanism 5 turns to top or tail end, can touch on limit switch 6 spring contact, instrument ground, electric machine assembly quits work.
To description of the present utility model, do not have restricted above; if those of ordinary skill in the art is enlightened by it; in the situation that does not depart from the protection of the utility model claim, make other malformation of the present utility model and embodiment, all belong to protection domain of the present utility model.
Claims (3)
1. a highly reliable spike ejector for well logging, it is characterized in that: comprise universal joint, instrument outer tube, circuit control panel, electric machine assembly, lead-screw drive mechanism, piston rod, note source cylinder, jet-sub etc., when instrument is powered, thereby electric machine assembly rotates and drives lead-screw drive mechanism promotion piston rod to move up and down, suck or discharge liquid, when lead-screw drive mechanism turns to top or tail end, can touch the spring contact on limit switch, instrument ground, electric machine assembly quits work.
2. highly reliable spike ejector for a kind of well logging according to claim 1, is characterized in that: in movable sealing, adopt spring energy-storage circle, these circle nonmetals partly adopt PEEK material, and spring adopts hastelloy nickel-bass alloy material.
3. highly reliable spike ejector for a kind of well logging according to claim 1, is characterized in that: all adopt hastelloy nickel-bass alloy material with radioisotope liquid contact portion material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320617560.2U CN203547729U (en) | 2013-10-09 | 2013-10-09 | High-reliability tracing ejector for well logging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320617560.2U CN203547729U (en) | 2013-10-09 | 2013-10-09 | High-reliability tracing ejector for well logging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203547729U true CN203547729U (en) | 2014-04-16 |
Family
ID=50465858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320617560.2U Expired - Fee Related CN203547729U (en) | 2013-10-09 | 2013-10-09 | High-reliability tracing ejector for well logging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203547729U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109501372A (en) * | 2018-12-27 | 2019-03-22 | 济南二机床集团有限公司 | Moveable platform of press limit switch trigger mechanism |
-
2013
- 2013-10-09 CN CN201320617560.2U patent/CN203547729U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109501372A (en) * | 2018-12-27 | 2019-03-22 | 济南二机床集团有限公司 | Moveable platform of press limit switch trigger mechanism |
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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: 20140416 Termination date: 20161009 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |