CN203584410U - Shock absorber of down-hole measuring instrument - Google Patents
Shock absorber of down-hole measuring instrument Download PDFInfo
- Publication number
- CN203584410U CN203584410U CN201320667901.7U CN201320667901U CN203584410U CN 203584410 U CN203584410 U CN 203584410U CN 201320667901 U CN201320667901 U CN 201320667901U CN 203584410 U CN203584410 U CN 203584410U
- Authority
- CN
- China
- Prior art keywords
- vibration damping
- shock absorber
- female
- male
- shock absorbing
- 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 - Lifetime
Links
- 230000035939 shock Effects 0.000 title claims abstract description 40
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 29
- 229920001971 elastomer Polymers 0.000 claims abstract description 26
- 239000005060 rubber Substances 0.000 claims abstract description 26
- 238000013016 damping Methods 0.000 claims description 57
- 238000002955 isolation Methods 0.000 claims description 19
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 238000005987 sulfurization reaction Methods 0.000 claims description 3
- 238000005553 drilling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
Images
Abstract
The utility model discloses a shock absorber of a down-hole measuring instrument. The shock absorber comprises a shock absorbing male head, a shock absorbing female head and shock absorbing rubber, wherein an assembling clearance exists between the shock absorbing male head and the shock absorbing female head, the shock absorbing rubber is filled in the clearance between the shock absorbing male head and the shock absorbing female head, and the shock absorbing rubber, the shock absorbing male head and the shock absorbing female head are bonded into a body. The shock absorber is simple in structure and reliable in work, and at the same time, higher reliability is obtained under the condition that the structure of the shock absorber is simpler than the structure of other similar products.
Description
Technical field
The utility model belongs to oil drilling machine engineering field, particularly a kind of shock absorber for underground survey inserting tube.
Background technology
At present; measurement while drilling (MWD), well logging during (LWD) system have become the indispensable part in petroleum drilling engineering field; obtaining of downhole data; the most important thing especially; shock absorber is as connection unit important in logger; for protecting instrument pipe nipple, obtaining reliable downhole data, its importance is self-evident.
In the device for subsurface measuring such as existing MWD/LWD as the shock absorber of connection element between adjacent two skeletons in same resistance to compression urceolus, the structure that its structure is also mostly that to adopt union end be metalwork and combines with vibration isolation rubber, folded spring etc.
A kind of structure is that shock absorber is by amplifying two metalwork Screw Thread Fit Clearance, adopt heat-vulcanized mode and vibration isolation rubber to be bonded together, easily there is pore in the vibration isolation rubber that this inside configuration is pressed into, minor diameter super large pitch rectangular thread (particularly screwed hole) processing in structure is also very difficult, and super large pitch screw there will be the trend of rotation in the situation that being subject to responsive to axial force, thereby the reliability that has reduced shock absorber affects effectiveness in vibration suppression.
Also having a kind of structure is that two ends adopt metalwork, it is rubber-coated that inside shock absorber, column centre is all made at two ends, sulfuration has some ring-shaped rubbers to press-fit and makes two ends bonding, and this structure also there will be the trend of rotation under responsive to axial force, thereby affects effectiveness in vibration suppression and reliability.
In these damper structures, owing to considering bonding or press-loading process, the hardness range of choice of elastomeric material has been received limitation, thereby damping property is produced to certain influence, and occur rubber and two ends metalwork degumming phenomenon underground work overlong time is as easy as rolling off a log, and the design of the trough between inserting tube is also restricted.
Utility model content
The purpose of this utility model is to provide a kind of shock absorber of device for subsurface measuring.
The technical scheme that the utility model adopts is: a kind of shock absorber of device for subsurface measuring, comprises vibration damping male, vibration damping female and vibration isolation rubber; There is fit-up gap in vibration damping male and vibration damping female, vibration isolation rubber is filled in the gap between vibration damping male and vibration damping female, and be bonded in one with vibration damping male and vibration damping female.
Described vibration damping male and vibration damping female fitting surface scribble adhesive.
Described vibration damping male and vibration damping female are provided with air vent.
Described vibration damping male is inserted after vibration damping female, adjusts fit-up gap, and the mode that vibration isolation rubber is pressed by note is injected shock absorber, by the mode vulcanized and vibration damping male and vibration damping female, is bonded in one.
The cooperation position of the metalwork at two ends of the present utility model is coaxial cooperation of hole and axle, its gap location sulfuration has vibration isolation rubber, from appearance, see that connecting metalwork is surrounded by vibration isolation rubber, this structure can reduce the risk of shock absorber accidental greatly, and the as easy as rolling off a log processing of its structural member, air vent on metalwork can effectively prevent the generation of vibration isolation rubber inner air vent, the fit system of shock absorber and skeleton also can change as requested, expand the range of application of this shock absorber, improved the reliability of this shock absorber.
In this structure, annular fit clearance has replaced the bonding mode such as rubber-coated in the middle of the super large pitch rectangular thread gap, column of similar products, and manufacturability is greatly improved, also prevented vibration damping male and vibration damping female axial rotation, move axially; Coaxial cooperation due to vibration damping male in this structure and vibration damping female employing axle and hole, even if the axial force that its applied environment is subject to is larger, there will not be degumming phenomenon to improve to a greater extent the reliability of shock absorber.
The cable tray of wire of the present utility model can freely be processed as requested, rather than is confined to away straight hole.
Compared with prior art, the utility model has the advantages that: simple in structure, reliable operation obtains higher reliability simultaneously in than the simpler situation of other like product structures.
Accompanying drawing explanation
The structural representation that figure l is shock absorber of the present utility model.
Fig. 2 is the A-A sectional drawing of Fig. 1.
Fig. 3 is cross-sectional schematic of the present utility model.
The specific embodiment
As shown in the figure, a kind of shock absorber of device for subsurface measuring, comprises vibration damping male 1, vibration damping female 2 and vibration isolation rubber 3; There is fit-up gap with vibration damping female 2 in vibration damping male 1, vibration isolation rubber 3 is filled in the gap between vibration damping male 1 and vibration damping female 2, and is bonded in one with vibration damping male 1 and vibration damping female 2.
Described vibration damping male 1 scribbles adhesive with vibration damping female 2 fitting surfaces.
Described vibration damping male 1 is provided with air vent with vibration damping female 2.Vibration isolation rubber 3 is pressed into the discharge that is conducive to inner air in cavity process, prevents the generation of pore.
Described vibration damping male 1 is inserted after vibration damping female 2, adjusts fit-up gap, and the mode that vibration isolation rubber 3 is pressed by note is injected shock absorber, by the mode vulcanized and vibration damping male 1 and vibration damping female 2, is bonded in one.
In applied environment, inserting tube skeleton contacts with the both ends of the surface of vibration isolation rubber 3, and by corresponding connecting mode, inserting tube skeleton is linked together, and can play in axial and radial direction the effect of vibration damping.
Claims (4)
1. a shock absorber for device for subsurface measuring, comprises vibration damping male, vibration damping female and vibration isolation rubber; It is characterized in that vibration damping male and vibration damping female exist fit-up gap, vibration isolation rubber is filled in the gap between vibration damping male and vibration damping female, and is bonded in one with vibration damping male and vibration damping female.
2. a kind of shock absorber of device for subsurface measuring according to claim 1, is characterized in that: vibration damping male and vibration damping female fitting surface scribble adhesive.
3. a kind of shock absorber of device for subsurface measuring according to claim 1, is characterized in that: vibration damping male and vibration damping female are provided with air vent.
4. a kind of shock absorber of device for subsurface measuring according to claim 1, it is characterized in that: vibration damping male is inserted after vibration damping female, adjust fit-up gap, the mode that vibration isolation rubber is pressed by note is injected shock absorber, and mode and vibration damping male and vibration damping female by sulfuration are bonded in one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320667901.7U CN203584410U (en) | 2013-10-29 | 2013-10-29 | Shock absorber of down-hole measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320667901.7U CN203584410U (en) | 2013-10-29 | 2013-10-29 | Shock absorber of down-hole measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203584410U true CN203584410U (en) | 2014-05-07 |
Family
ID=50582346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320667901.7U Expired - Lifetime CN203584410U (en) | 2013-10-29 | 2013-10-29 | Shock absorber of down-hole measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203584410U (en) |
-
2013
- 2013-10-29 CN CN201320667901.7U patent/CN203584410U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Dengzhou road 257091 in Shandong province Dongying City Dongcheng Development Zone No. 62 Patentee after: SCHLUMBERGER OILFIELD TECHNOLOGIES (SHANDONG) CO.,LTD. Address before: Dengzhou road 257091 in Shandong province Dongying City Dongcheng Development Zone No. 62 Patentee before: SCHLUMBERGER JHP OILFIELD TECHNOLOGIES SHANDONG Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140507 |