CN2811567Y - Piston type pressure balance transmission device for well logging tool - Google Patents
Piston type pressure balance transmission device for well logging tool Download PDFInfo
- Publication number
- CN2811567Y CN2811567Y CNU200520091008XU CN200520091008U CN2811567Y CN 2811567 Y CN2811567 Y CN 2811567Y CN U200520091008X U CNU200520091008X U CN U200520091008XU CN 200520091008 U CN200520091008 U CN 200520091008U CN 2811567 Y CN2811567 Y CN 2811567Y
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- Prior art keywords
- piston rod
- piston
- logical
- transmission device
- storehouse
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of logging instrument piston-type pressure balance transmission device, mainly comprise spring case, well logging piston rod and potentiometric sensor etc., an end that is characterized in spring case is connected with the balance pipe overcoat threadably, the other end of balance pipe overcoat is connected with piston rod, the other end of piston rod connects the logical pressure storehouse that offers logical pressure hole, and the logical end in storehouse of pressing is provided with plug; In piston rod, be provided with the dummy piston bar.The utility model is simple in structure, and modern design has advantage easy to use, with low cost, long service life.
Description
One, technical field: the utility model relates to a kind of logging instrument servicing unit, particularly a kind of logging instrument piston-type pressure balance transmission device.
Two, background technology: at present, the balance transmission device of all kinds of logging instrument sensors in oil field generally adopts the rubber tube structure, promptly is full of silicone oil in the rubber balance pipe, realizes balance behind the combination sealing.Because the rubber balance pipe can rub with down-hole rock and metal object when underground work, causes the damage leakage of oil; And rubber tube withstand voltage properties under down-hole high temperature, high pressure is poor, and is easily aging, causes the leakage of oil of breaking, thereby causes the insulation of logging instrument potentiometric sensor to be damaged and can not use, and also exists the high shortcoming of cost of production simultaneously.
Three, summary of the invention: the purpose of this utility model just is to provide a kind of metal tube structure, bascule in the form of piston---logging instrument piston-type pressure balance transmission device.Technical solution of the present utility model is: described balance transmission device mainly comprises spring case, well logging piston rod, potentiometric sensor etc., one end of spring case is connected with the balance pipe overcoat threadably, the other end of balance pipe overcoat is connected with piston rod, the other end of piston rod connects the logical storehouse of pressing, the logical end in storehouse of pressing is provided with plug, offers the logical hole of pressing on the storehouse logical the pressure; In piston rod, be provided with and the piston rod equal number of logging well, dummy piston bar that unit cross-sectional area is identical, be filled with silicone oil in the inside of balance pipe overcoat.The utility model is simple in structure, and modern design can be worked under down-hole high temperature, high pressure, anti-scratching, anti-leakage of oil, ageing-resistant, can guarantee the operate as normal of potentiometric sensor, greatly reduce cost of production, improved logging efficiency, have easy to use, safeguard easily, the advantage of long service life.
Four, description of drawings: Fig. 1 is the utility model embodiment master TV structure cross-sectional schematic;
Five, the specific embodiment: described balance transmission device mainly comprises spring case 1, well logging piston rod 2, potentiometric sensor 3 etc., on spring case 1, offer oil-filled hole 10, one end of spring case 1 is connected with balance pipe overcoat 4 threadably, the other end of balance pipe overcoat 4 is connected with piston rod 5, the other end of piston rod 5 connects the logical storehouse 6 of pressing, the logical end in storehouse 6 of pressing is provided with plug 7, offers the logical hole 8 of pressing on the storehouse 6 logical the pressure; In piston rod 5, be provided with and piston rod 2 equal numbers of logging well, dummy piston bar 9 that unit cross-sectional area is identical.Be filled with silicone oil 12 in the inside of balance pipe overcoat 4, on well logging piston rod 2 and balance piston rod 9, be respectively installed with the spring 11 that plays reset response.
Do the time spent only being subjected to down-hole pressure, well logging piston rod 2 and balance piston rod 9 are in relative balance state under the effect of medium silicone oil 12, during well logging when extraneous mechanical force promotes well logging piston rod 2 and moves, dummy piston bar 9 same moved further.
Claims (2)
1, a kind of logging instrument piston-type pressure balance transmission device, mainly comprise spring case (1), well logging piston rod (2), potentiometric sensor (3) etc., an end that it is characterized in that spring case (1) is connected with balance pipe overcoat (4) threadably, the other end of balance pipe overcoat (4) is connected with piston rod (5), the other end of piston rod (5) connects the logical storehouse (6) of pressing, the logical end in storehouse (6) of pressing is provided with plug (7), offers the logical hole (8) of pressing on the storehouse (6) logical the pressure; In piston rod (5), be provided with and the piston rod of logging well (2) equal number, dummy piston bar (9) that unit cross-sectional area is identical.
2, logging instrument piston-type pressure balance transmission device as claimed in claim 1 is characterized in that being filled with silicone oil (12) in the inside of balance pipe overcoat (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200520091008XU CN2811567Y (en) | 2005-05-24 | 2005-05-24 | Piston type pressure balance transmission device for well logging tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200520091008XU CN2811567Y (en) | 2005-05-24 | 2005-05-24 | Piston type pressure balance transmission device for well logging tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2811567Y true CN2811567Y (en) | 2006-08-30 |
Family
ID=36937954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200520091008XU Expired - Fee Related CN2811567Y (en) | 2005-05-24 | 2005-05-24 | Piston type pressure balance transmission device for well logging tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2811567Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751041A (en) * | 2019-01-30 | 2019-05-14 | 中国海洋石油集团有限公司 | A kind of flexibility logging instrument |
| CN112096369A (en) * | 2020-08-21 | 2020-12-18 | 中石化石油工程技术服务有限公司 | Guide short section based on SP and buffer force measurement |
| WO2022016959A1 (en) * | 2020-07-24 | 2022-01-27 | 中国海洋石油集团有限公司 | Sensor module, sensor assembly and acoustic logging tool |
-
2005
- 2005-05-24 CN CNU200520091008XU patent/CN2811567Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751041A (en) * | 2019-01-30 | 2019-05-14 | 中国海洋石油集团有限公司 | A kind of flexibility logging instrument |
| CN109751041B (en) * | 2019-01-30 | 2023-03-14 | 中国海洋石油集团有限公司 | Flexible logging instrument |
| WO2022016959A1 (en) * | 2020-07-24 | 2022-01-27 | 中国海洋石油集团有限公司 | Sensor module, sensor assembly and acoustic logging tool |
| CN112096369A (en) * | 2020-08-21 | 2020-12-18 | 中石化石油工程技术服务有限公司 | Guide short section based on SP and buffer force measurement |
| CN112096369B (en) * | 2020-08-21 | 2024-03-15 | 中石化石油工程技术服务有限公司 | Guiding nipple based on SP and buffer force measurement |
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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: 20060830 Termination date: 20110524 |