CN202673283U - Sidewall contact device - Google Patents
Sidewall contact device Download PDFInfo
- Publication number
- CN202673283U CN202673283U CN 201220245765 CN201220245765U CN202673283U CN 202673283 U CN202673283 U CN 202673283U CN 201220245765 CN201220245765 CN 201220245765 CN 201220245765 U CN201220245765 U CN 201220245765U CN 202673283 U CN202673283 U CN 202673283U
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- CN
- China
- Prior art keywords
- shell
- semi
- sliding rails
- ring shell
- telescoping ram
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Abstract
The utility model discloses a sidewall contact device which overcomes the defect that existing single-spring sidewall contact devices have poor sidewall contact quality of long instruments. The sidewall contact device comprises a semi-ring shell (1), at least two pairs of sliding rails (2), elastic sheets (6), abrasion-resistant blocks (7), a first fixing sleeve (9) and a second fixing sleeve (11). All the sliding rails (2) are linearly distributed on the outer surface of the semi-ring shell (1), each sliding rail (2) is provided with a groove, the sliding rails (2) in each pair are provided with the elastic sheets (6) in an arched manner, the abrasion-resistant blocks (7) are fixedly arranged in the middles of the elastic sheets (6), and the first fixing sleeve (9) and the second fixing sleeve (11) are coaxial to the shell (1) and mounted at two ends of the semi-ring shell (1) respectively. Compared with the prior art, the sidewall contact device with two sidewall contact points is more ideal in well wall attachment effect of instruments.
Description
Technical field
The utility model relates to a kind of telescoping ram.
Background technology
In oil well logging, except well logging placed in the middle, also has contact well logging, such as NMR (Nuclear Magnetic Resonance) logging instrument, densilog instrument etc.All can attach a single spring telescoping ram in this class logging instrument, this telescoping ram only has a backup point.If tool length is longer, then stress point is single, and the backup effect is not very good just in prospect pit, and tool housing generally all needs additionally to add the application life that wearing layer prolongs telescoping ram.
The utility model content
Technical problem to be solved in the utility model is to overcome present single spring telescoping ram for the second-rate defective of the backup of longer instrument.
In order to solve the problems of the technologies described above, the utility model provides a kind of telescoping ram, comprises semi-ring shell (1), at least two pairs of sliding rails (2), shell fragment (6), wear-resistant block (7), the first fixed cover (9) and the second fixed cover (11), wherein:
Be distributed in the external surface of semi-ring shell (1), each sliding rail is provided with groove on (2) all sliding rails (2) straight line; Every a pair of sliding rail (2) all is the arc shell fragment (6) that is provided with, the middle part of shell fragment (6) is fixedly installed wear-resistant block (7), and the two ends of semi-ring shell (1) are separately installed with first fixed cover (9) and second fixed cover (11) coaxial with shell (1).
Preferably, semi-ring shell (1) is concentric with the instrument bearing shell.
Preferably, two pairs of sliding rails (2) are distributed in the external surface of semi-ring shell (1), and wherein two sliding rails (2) are positioned at the two ends of semi-ring shell (1), and remaining two sliding rails (2) are positioned at the centre of semi-ring shell (1).
Preferably, every a pair of sliding rail (2) all arranges shell fragment (6) by threaded pivot pin (3) and positioning threads cover (4).
Preferably, pivot pin (3) passes the grasswort of shell fragment (6) from a side, and positioning threads cover (4) is connected with pivot pin (3) with screw thread at opposite side, and the employing self-locking nut is fixed.
Preferably, the external surface of the outstanding shell fragment (6) of wear-resistant block (7).
Preferably, be provided with protection piece (12) perpendicular to semi-ring shell (1) axis at the first fixed cover (9) and the second fixed cover (11).
Preferably, protection piece (12) comprises U-shaped cassette tape.
Compared with prior art, an embodiment of the present utility model has two backup points, and the stressed position of its spring leaf is more reasonable, and it is more desirable that instrument pastes the effect of the borehole wall.
Description of drawings
Fig. 1 is the profile schematic diagram of the utility model embodiment.
Fig. 2 is the structural representation of the utility model embodiment.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, hereinafter in connection with accompanying drawing embodiment of the present utility model is elaborated.Need to prove that in the situation of not conflicting, the embodiment among the application and the feature among the embodiment be any combination mutually.
As depicted in figs. 1 and 2, the telescoping ram of the utility model embodiment mainly comprises semi-ring shell 1, sliding rail 2, threaded pivot pin 3, positioning threads cover 4, shell fragment 6, wear-resistant block 7, the first fixed cover 9, the second fixed cover 11 and protection piece 12 etc.
Semi-ring shell 1 is concentric with the instrument bearing shell, is distributed in the external surface of semi-ring shell 1 four sliding rail 2 straight lines, and wherein two sliding rails 2 are positioned at the two ends of semi-ring shell 1, and remaining two sliding rails 2 are positioned at the centre of semi-ring shell 1.Such four sliding rails 2 are divided into two pairs from the centre.
Be provided with groove on each sliding rail 2, every a pair of sliding rail 2 all is provided with length greater than the shell fragment 6 of two sliding rail 2 spacings in every a pair of sliding rail by threaded pivot pin 3 and positioning threads cover 4, and shell fragment 6 is and is installed between two sliding rails 2 arcly like this.Among the embodiment of the present utility model, pivot pin 3 passes the grasswort of shell fragment 6 from a side, and positioning threads cover 4 is connected with pivot pin 3 with screw thread at opposite side, and the employing self-locking nut is fixed, and prevents that positioning threads from overlapping 4 and releasing and come off.
At the middle part of shell fragment 6, by being interior hexagonal round head screw in the first screw 8(present embodiment) be fixedly installed wear-resistant block 7, the wherein external surface of wear-resistant block 7 outstanding shell fragments 6.
Embodiment of the present utility model, by more sliding rails 2 to (more than 3 pairs or 3 pairs), and supporting shell fragment 6, better note borehole wall effect can be provided.
The two ends of shell 1 are respectively by being interior hexagonal round head screw in the second screw 10(present embodiment) first fixed cover 9 and second fixed cover 11 coaxial with shell 1 be installed.What adopt in the first fixed cover 9 and the second fixed cover 11 are provided with protection piece 12(present embodiment perpendicular to shell 1 axis is U-shaped cassette tape).
Protection piece 12 should in time be changed after the wearing and tearing owing to frequent and sleeve pipe rub.The utility model is when using; after splitting out the protection piece; embodiment telescoping ram of the present utility model is fixed on (permanent position is in the centre of instrument pipe nipple) on the instrument pipe nipple, and protection piece 12 can prevent effectively that tool housing and internal surface of sleeve pipe from rubbing, and plays the effect of protection tool housing.The tension force that utilizes shell fragment 6 self in the course of work pushes against the opposite side of the borehole wall with instrument itself, plays the effect of compensation hole diameter.In the prospect pit operation process, two shell fragments act on simultaneously, effectively overcome the impact of the factors such as instrument center of gravity inequality, tool length and site environment, can reach compared to existing technology better note borehole wall effect, provide condition for obtaining better log data.The fixing U-shaped cassette tape in the two ends of the utility model embodiment can be protected tool housing, prevents shell and sleeve pipe generation frictional influence shell mechanical performance.
Although the disclosed embodiment of the utility model as above, the embodiment that described content just adopts for the ease of understanding the utility model is not to limit the utility model.Technician under any the utility model in the technical field; under the prerequisite that does not break away from the disclosed spirit and scope of the utility model; can do any modification and variation in the details that reaches of implementing in form; but scope of patent protection of the present utility model still must be as the criterion with the scope that appending claims was defined.
Claims (8)
1. a telescoping ram is characterized in that, comprises semi-ring shell (1), at least two pairs of sliding rails (2), shell fragment (6), wear-resistant block (7), the first fixed cover (9) and the second fixed cover (11), wherein:
Be distributed in the external surface of semi-ring shell (1), each sliding rail is provided with groove on (2) all sliding rails (2) straight line; Every a pair of sliding rail (2) all is the arc shell fragment (6) that is provided with, the middle part of shell fragment (6) is fixedly installed wear-resistant block (7), and the two ends of semi-ring shell (1) are separately installed with first fixed cover (9) and second fixed cover (11) coaxial with shell (1).
2. telescoping ram according to claim 1 is characterized in that,
Semi-ring shell (1) is concentric with the instrument bearing shell.
3. telescoping ram according to claim 1 is characterized in that,
Two pairs of sliding rails (2) are distributed in the external surface of semi-ring shell (1), and wherein two sliding rails (2) are positioned at the two ends of semi-ring shell (1), and remaining two sliding rails (2) are positioned at the centre of semi-ring shell (1).
4. telescoping ram according to claim 1 is characterized in that,
Every a pair of sliding rail (2) all arranges shell fragment (6) by threaded pivot pin (3) and positioning threads cover (4).
5. telescoping ram according to claim 4 is characterized in that,
Pivot pin (3) passes the grasswort of shell fragment (6) from a side, and positioning threads cover (4) is connected with pivot pin (3) with screw thread at opposite side, and the employing self-locking nut is fixed.
6. telescoping ram according to claim 1 is characterized in that,
The external surface of the outstanding shell fragment (6) of wear-resistant block (7).
7. telescoping ram according to claim 1 is characterized in that,
Be provided with protection piece (12) perpendicular to semi-ring shell (1) axis at the first fixed cover (9) and the second fixed cover (11).
8. telescoping ram according to claim 7 is characterized in that,
Protection piece (12) comprises U-shaped cassette tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220245765 CN202673283U (en) | 2012-05-29 | 2012-05-29 | Sidewall contact device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220245765 CN202673283U (en) | 2012-05-29 | 2012-05-29 | Sidewall contact device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202673283U true CN202673283U (en) | 2013-01-16 |
Family
ID=47494193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220245765 Expired - Lifetime CN202673283U (en) | 2012-05-29 | 2012-05-29 | Sidewall contact device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202673283U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285510A (en) * | 2016-08-31 | 2017-01-04 | 中国船舶重工集团公司第七八研究所 | A kind of eccentric centralizer for geochemical well logging instrument |
| CN108894770A (en) * | 2018-06-06 | 2018-11-27 | 王少斌 | A kind of double-deck four arms polygon telescoping ram |
| CN109236271A (en) * | 2018-08-27 | 2019-01-18 | 中国石油天然气集团有限公司 | A kind of wireline logging underground pushing device |
-
2012
- 2012-05-29 CN CN 201220245765 patent/CN202673283U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285510A (en) * | 2016-08-31 | 2017-01-04 | 中国船舶重工集团公司第七八研究所 | A kind of eccentric centralizer for geochemical well logging instrument |
| CN108894770A (en) * | 2018-06-06 | 2018-11-27 | 王少斌 | A kind of double-deck four arms polygon telescoping ram |
| CN108894770B (en) * | 2018-06-06 | 2022-04-22 | 王少斌 | Double-layer four-arm polygonal sidewall contact device |
| CN109236271A (en) * | 2018-08-27 | 2019-01-18 | 中国石油天然气集团有限公司 | A kind of wireline logging underground pushing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: China Oilfield Services Limited Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: China Oilfield Services Limited Patentee before: China National Offshore Oil Corporation |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130116 |