CN202157802U - High-temperature and density logging instrument - Google Patents
High-temperature and density logging instrument Download PDFInfo
- Publication number
- CN202157802U CN202157802U CN2011202513437U CN201120251343U CN202157802U CN 202157802 U CN202157802 U CN 202157802U CN 2011202513437 U CN2011202513437 U CN 2011202513437U CN 201120251343 U CN201120251343 U CN 201120251343U CN 202157802 U CN202157802 U CN 202157802U
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Abstract
The utility model relates to a high-temperature and density logging instrument in the field of logging equipment. The high-temperature and density logging instrument adopts the technical scheme that a radioactive shielding and receiving mechanism is positioned at the middle part of the instrument, and a pushing and leaning mechanism adhered onto a well wall and a connecting head are respectively arranged at the two ends of the instrument. The pushing and leaning mechanism adhered onto the well wall at least comprises a group of spring eccentric device; the spring eccentric device is fabricated in a way that a spring piece notch prefabricated on a cylinder wall, one end of a spring piece is clamped on the cylinder wall after being connected with a slide seat, and the other end of the spring piece is fixed on the cylinder wall. A metal vacuum bottle is sleeved outside a crystal in a shielding body. A set of or a plurality of sets of lambdoidal stabilizers is (are) arranged on a spring eccentric device body. The high temperature and density logging instrument has the characteristics that the whole instrument has small volume, low cost and high maneuverability; a shielding body component, a source room component and a circuit component are wholly combined together to ensure relative position between a source room and a detector; and as the metal vacuum bottle is used in the structure, the temperature index of the instrument is further improved.
Description
Technical field
The utility model relates to a kind of high temperature density log instrument in the logging equipment field.
Background technology
What at present domestic and international densilog instrument generally adopted is the backup logging mode that has telescoping ram, mainly comprises radioactive shield and receiving mechanism, telescoping ram (also claiming to paste borehole wall backup mechanism), connector composition.The subject matter of its existence is: the one, and telescoping ram comprises 3-6 backup arm of upholding, the Drive Structure that the driving backup arm opens and shrinks and control device (the underground and ground) composition of controlling driving mechanism; It needs the transmission system of motor, precision; A series of actions parts such as backup arm in superhigh temperature, are difficult to guarantee reliable action in the ultradeep well; Complex structure and diameter are bigger, can't satisfy the well logging of some exceptional wells (like ultra dark, superhigh temperature or extra small diameter well); The 2nd, pushing type densilog instrument sonde configuration is shield assembly and source chamber component to be divided into the two large divisions assemble; Also separate with circuit pack; Be difficult to the relative position between chamber, assurance source and the probe; Key is in this structure, can't use vacuum flask, thereby can't further improve the temperature index of instrument.Only the problem of this two aspect is enough to limit the normal use of density log instrument in special oil well.
The applicant in first to file a kind of " high temperature density log instrument " (patent No. 200720022988.7); Comprise radioactive shield and receiving mechanism, subsides borehole wall backup mechanism, connector composition; Wherein, radioactive shield and receiving mechanism are positioned at the middle part of instrument, and two ends are respectively to paste borehole wall backup mechanism and connector; Described subsides borehole wall backup mechanism is a prefabricated spring leaf notch on barrel, slides and fix in the spring leaf notch in the one or both ends of spring leaf.Its effect is mainly reflected in: 1, saved power drive and circuit controlling organization at the spring eccentric of the front end setting of instrument, had simple in structure, advantages of small volume, thereby made the volume of whole instrument short and small, cost reduces, handling raising; 2, the spring eccentric makes chamber, source launch window; The shield receive window is in fixing orientation all the time; A whole set of instrument is under the effect of eccentric spring leaf; Radioactive ray emission, receive window simultaneously are close to the borehole wall, thereby have improved accurately carrying out of density log project, improve the accuracy of survey data; 3, with the shield assembly do, guarantee the relative position between chamber, source and the probe, and in this structure, use the metal heat preservation bottle, thereby further improve the temperature index of instrument with source chamber component, circuit pack entire combination.But only rely on the spring leaf supporting role owing to paste borehole wall backup mechanism; And the corresponding barrel side of spring leaf is that barrel cooperates with the smooth of tube wall; Lack necessary rock-steady structure; Make radioactive ray emission, receive window simultaneously be difficult to the borehole wall of being close to of lasting stability, more or less can influence the accuracy of survey data.
The utility model content
The purpose of the utility model is exactly the defective that exists to prior art; Provide a kind of simplification to paste borehole wall backup mechanism; Can realize reliable and stable directionality; Make instrument transmit and receive window, satisfy special oil well and accomplish the density log project, and improve the high temperature density log instrument of log data accuracy exactly to landing surface.
Its technical scheme be comprise radioactive shield and receiving mechanism, paste borehole wall backup mechanism, connector is formed; Wherein, Radioactive shield and receiving mechanism are positioned at the middle part of instrument, and two ends are respectively to paste borehole wall backup mechanism and connector, and described subsides borehole wall backup mechanism is a prefabricated spring leaf notch on barrel; Sliding and fix in the spring leaf notch in the one or both ends of spring leaf, on the barrel of spring leaf respective side, is provided with " people " font stabilizer.Said " people " font stabilizer be with the corresponding barrel of spring leaf axis on be fixed with " people " font steel disc to both sides.
Chamber, source in radioactive shield and the receiving mechanism, shield, short space crystal, long space crystal are arranged in order, are fixed in the enclosure, and form fixing angle with the spring eccentric.Suit metal heat preservation bottle outside the crystal in shield.
The utility model is to use for reference and be retained on the technical advantage basis of first to file; Paste borehole wall backup mechanism through improving; Promptly increase " people " font stabilizer of spring leaf respective side; With these two end points actings in conjunction that reach outer end points of spring leaf and herringbone stabilizer, thoroughly solved the spring eccentric make chamber, source launch window, shield receive window stable be in fixing orientation, that greatly improves the density log project accurately carries out the accuracy with survey data.
Description of drawings
Accompanying drawing 1 is the structure diagram of a kind of embodiment.
The specific embodiment:
With reference to accompanying drawing 1, spring eccentric 3 is installed in the front end of density instrument, and connector 12 devices are at the other end of instrument.Spring eccentric 3 is processed with cover " people " font stabilizer 13 in a side of its cylindrical shell 4, opposite side is offered notch 2 and bayonet socket; Spring leaf 5 upper ends have slide (or foxy) 1; The lower end is fixed on the barrel; The slide of upper end slides at bayonet socket behind the spring leaf pressurized like this, and spring leaf bears against the side at the borehole wall with apparatus subject, and two of this side are the steel disc of herringbone distribution and the borehole wall effect of both sides simultaneously.Spring eccentric 3 links with fixing orientation with chamber, source 6; Chamber, source 6 connects together with shield 9; Be with metal heat preservation bottle 10 in the shield 9; Short space crystal 8, long space crystal 11 are installed in the metal heat preservation bottle, thereby have guaranteed spring eccentric 3, chamber, source 6 launch windows, shield 9 receive windows are in fixing orientation all the time.A whole set of instrument is under the effect of eccentric spring leaf; Radioactive ray emission, receive window simultaneously are close to the borehole wall; Under the effect of " people " font stabilizer 13; Make instrument launch window and receive window stable exactly to landing surface, especially effect is more obvious in the level well logging, thereby is guaranteeing accurately carrying out of density log project.
Need to prove " people " font stabilizer promptly with the corresponding barrel of spring leaf axis on after both sides are fixed with steel disc, be " people " font layout, the outer end points of the free end of steel disc and spring leaf constitutes isosceles triangle.
Claims (3)
1. high temperature density log instrument; Comprise radioactive shield and receiving mechanism, subsides borehole wall backup mechanism, connector composition; Wherein, radioactive shield and receiving mechanism are positioned at the middle part of instrument, and two ends are respectively to paste borehole wall backup mechanism and connector; Described subsides borehole wall backup mechanism is a prefabricated spring leaf notch on barrel; Sliding and fix in the spring leaf notch in the one or both ends of spring leaf, it is characterized in that: on the barrel of spring leaf respective side, be provided with " people " font stabilizer, said " people " font stabilizer be with the corresponding barrel of spring leaf axis on be fixed with " people " font steel disc to both sides.
2. according to the described high temperature density log of claim 1 instrument; It is characterized in that: the chamber, source in radioactive shield and the receiving mechanism, shield, short space crystal, long space crystal are arranged in order; Be fixed in the enclosure, and form fixing angle with the spring eccentric.
3. high temperature density log instrument according to claim 2 is characterized in that: suit metal heat preservation bottle outside the crystal in shield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202513437U CN202157802U (en) | 2011-07-18 | 2011-07-18 | High-temperature and density logging instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202513437U CN202157802U (en) | 2011-07-18 | 2011-07-18 | High-temperature and density logging instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202157802U true CN202157802U (en) | 2012-03-07 |
Family
ID=45765443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202513437U Expired - Fee Related CN202157802U (en) | 2011-07-18 | 2011-07-18 | High-temperature and density logging instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202157802U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2011
- 2011-07-18 CN CN2011202513437U patent/CN202157802U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120307 Termination date: 20150718 |
|
| EXPY | Termination of patent right or utility model |