CN206174955U - Hole diameter calibration loop used of instrument in pit - Google Patents
Hole diameter calibration loop used of instrument in pit Download PDFInfo
- Publication number
- CN206174955U CN206174955U CN201621109198.8U CN201621109198U CN206174955U CN 206174955 U CN206174955 U CN 206174955U CN 201621109198 U CN201621109198 U CN 201621109198U CN 206174955 U CN206174955 U CN 206174955U
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- CN
- China
- Prior art keywords
- positioning screw
- hole diameter
- calibration loop
- axis
- torus
- 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 - Fee Related
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model relates to a hole diameter calibration loop used of instrument in pit belongs to the oil exploration instrument technical field in the pit that logs well, aims at solving the problem of the accurate centering of hole diameter calibration loop. This hole diameter calibration loop includes hollow tourus, and evenly distributed has a plurality of screws on the tourus, has connect the positioning screw in each screw respectively soon, and the hexagon head of each positioning screw is located the outside of tourus respectively, and the axis of each positioning screw is located same plane and intersects vertically with the axis of tourus respectively, met lock nut on each positioning screw respectively soon, each lock nut presses respectively on the inner wall of tourus. The inner wall of tourus is equipped with the plane respectively with the position of each lock nut contact. The positioning screw is equipped with four and just is the cross. The up end of tourus evenly welds the ANTI - SKID baffle plate that oriented tourus axis direction stretches out, and each ANTI - SKID baffle plate's axis becomes 45 contained angles with the axis of adjacent positioning screw. This hole diameter calibration loop can realize very conveniently with instrument centering in the pit, prevent the slippage.
Description
Technical field
The utility model is related to a kind of device for subsurface measuring, the hole diameter calibration loop of more particularly to a kind of downhole instrument, category
In petroleum exploration logging downhole instrument technical field.
Background technology
After the well shaping of oil well, metal sleeve to be installed and is protected for the borehole wall, the annular space between well and sleeve pipe
Injection cement mortar is cemented the well, and sleeve pipe plays a part of closure.The feelings such as deformation, bending, fracture, eyelet, the inner wall corrosion of sleeve pipe
Safety in production of the condition to oil well is particularly significant, it is necessary to measure monitoring to the internal diameter of metal sleeve.
Arm Caliper Log instrument is a kind of instrument with contacts, is provided with a set of measurement arm, after being opened by measuring arm
Contacted with metal sleeve inwall, the change of internal surface of sleeve pipe is switched into the radial displacement of caliper logging arm, inside caliper
Mechanical transfer, is changed into the vertical displacement of push rod, and the vertical displacement of push rod is changed into electric signal by differential displacement sensor.In imaging
Under the support of software, three-dimensional imaging figure, cross-sectional view and tubing string stereogram of deformation section etc. are completed, can be with explication de texte sleeve pipe
Deformation, bending, fracture, eyelet, inner wall corrosion situations such as, be to formulate lower step measure to provide scientific basis with scheme.
Multi-arm caliper instrument measures the accurate measurement data for directly determining multi-arm measuring instrument of arm stretched dimensions scope
Precision.Multi-arm caliper instrument is required for carrying out scale to the size of respectively stretching one's arms for measuring arm before well logging, i.e., by calibration loop pair
The measured value for measuring arm is demarcated.Calibration loop in scale, it is necessary to make calibration loop relative with multi-arm caliper instrument placed in the middle, at once
The axis for spending ring will overlap with the axis of multi-arm caliper instrument.
Existing calibration loop, does not have centralising device, inconvenient when adjustment keeps placed in the middle with instrument in use, easily makes
Scale into each measurement arm is inconsistent, influences the accurate of measurement result.And in scale, easily cause calibration loop slippage, shadow
Ring the carrying out of scale.
Utility model content
The purpose of this utility model is to overcome problems of the prior art, there is provided a kind of well of downhole instrument
Footpath calibration loop, can easily realize and downhole instrument centering.
It is to solve above technical problem, the hole diameter calibration loop of a kind of downhole instrument of the present utility model, including hollow
Torus, is evenly distributed with multiple screws on the torus, be connected with positioning screw in each screw respectively, each described fixed
The turret head of position screw rod respectively positioned at the outside of the torus, the axis of each positioning screw be located in approximately the same plane and
The axis with torus intersects vertically respectively；Locking nut, each locking nut are connected with each positioning screw respectively
It is press respectively against on the inwall of the torus.
Relative to prior art, the utility model achieves following beneficial effect：During well logging, locking nut is unscrewed, you can
To turn the turret head of positioning screw by spanner, with the rotation of positioning screw, inner termination and the torus axle of positioning screw
The distance between line changes；First by the regulation of the distance between each positioning screw inner termination to sufficiently large, then by calibration loop
It is enclosed within downhole instrument, when calibration loop is moved to the caliper logging arm top of downhole instrument, by precession positioning screw, makes each
The inner termination of positioning screw withstands on downhole instrument shell and confirms that the extension elongation of each positioning screw is consistent, that is, realize scale
Ring and the centering of downhole instrument, now screw each locking nut and realize positioning.
Used as preferred scheme of the present utility model, the position that the inwall of the torus is contacted with each locking nut sets respectively
There is plane.Each locking nut is twisted in the plane, and it is accurate by the locking of each positioning screw to be conducive to, and prevents from loosening.
Used as further preferred scheme of the present utility model, the axis of each screw is located at torus width respectively
Middle part.Axis easy to process and ensuring each screw is located in approximately the same plane.
Used as further preferred scheme of the present utility model, the positioning screw is provided with four, and four positioning screws are in ten
Word intersects.Four positioning screws can be supported the use with four-arm caliper device, four phases of correspondence four-arm caliper device shell,
The inscribe diameter of a circle of four positioning screw formation is identical with the housing diameter of downhole instrument, can first by adjacent two during regulation
Positioning screw is threaded to suitable position in advance, then other two precessions are withstood on the shell of downhole instrument, and locking nut is fixed
Afterwards, four-arm caliper device opens leg, it is possible to carry out scale.
As further preferred scheme of the present utility model, the oriented torus axle of upper surface uniform welding of the torus
The anti-skidding baffle plate that line direction is stretched out.During hole diameter instrument scale, each caliper logging arm opens, the maximum gauge position of caliper logging arm
Anti-skidding baffle plate lower section is withstood on, can prevent calibration loop from slipping downwards, influence scale.
Used as further preferred scheme of the present utility model, the anti-skidding baffle plate is distributed along the even circumferential of the torus
There are four, the axis of each anti-skidding baffle plate and the axis angle at 45 ° of adjacent positioned screw rod.Supported the use with four-arm caliper device,
Four four joint parts of measurement arm of anti-skidding baffle plate correspondence four-arm caliper device.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description, accompanying drawing only provides ginseng
Examine and used with explanation, be not used to limit the utility model.
Fig. 1 is the structural representation of the hole diameter calibration loop of the utility model downhole instrument.
In figure：1. torus；2. positioning screw；3. locking nut；4. anti-skidding baffle plate.
Specific embodiment
As shown in figure 1, the hole diameter calibration loop of the utility model downhole instrument, including hollow torus 1, torus 1
On be evenly distributed with multiple screws, positioning screw 2 is connected with each screw respectively, the turret head of each positioning screw 2 is located at respectively
The outside of torus 1, the axis of each positioning screw 2 is located in approximately the same plane and the axis with torus 1 intersects vertically respectively；
Locking nut 3 is connected with each positioning screw 2 respectively, each locking nut 3 is press respectively against on the inwall of torus 1.
During well logging, locking nut 3 is unscrewed, you can to turn the turret head of positioning screw 2 by spanner, with positioning screw
The distance between 2 rotation, the inner termination of positioning screw 2 and annulus body axis change；First by the inner termination of each positioning screw 2
The distance between regulation to sufficiently large, then calibration loop is enclosed within downhole instrument, when calibration loop is moved to the well of downhole instrument
During the measurement arm top of footpath, by precession positioning screw 2, the inner termination of each positioning screw 2 is set to withstand on downhole instrument shell and really
The extension elongation for recognizing each positioning screw 2 is consistent, that is, realize the centering of calibration loop and downhole instrument, now screws each locking nut
3 realize positioning.
The position that the inwall of torus 1 is contacted with each locking nut 3 is respectively equipped with plane.Each locking nut 3 is screwed in plane
On, be conducive to accurately locking each positioning screw 2, prevent from loosening.
The axis of each screw is respectively positioned at the middle part of the width of torus 1.Axis that is easy to process and ensuring each screw
In approximately the same plane.
Positioning screw 2 is provided with four, and four positioning screws 2 are in right-angled intersection.Four positioning screws 2 can be with four arm hole diameters
Instrument is supported the use, four phases of correspondence four-arm caliper device shell, the inscribe diameter of a circles that four positioning screws 2 are formed with
The housing diameter of downhole instrument is identical, adjacent two positioning screws can be in advance first threaded into suitable position during regulation, then will
Other two precessions are withstood on the shell of downhole instrument, and after locking nut is fixed, four-arm caliper device opens leg, it is possible to carved
Degree.
The anti-skidding baffle plate 4 that the upper surface uniform welding directed circle ring axis direction of torus 1 is stretched out.Hole diameter instrument scale
When, each caliper logging arm opens, and the maximum gauge position of caliper logging arm withstands on the lower section of anti-skidding baffle plate 4, can prevent calibration loop
Slip downwards, influence scale.
Anti-skidding baffle plate 4 is distributed with four, axis and the adjacent positioned spiral shell of each anti-skidding baffle plate 4 along the even circumferential of torus 1
The axis angle at 45 ° of bar 2.Supported the use with four-arm caliper device, four four of the corresponding four-arm caliper device of anti-skidding baffle plate 4
Measure the joint part of arm.
The foregoing is only the preferable possible embodiments of the utility model, non-therefore limitation patent of the present utility model
Protection domain.In addition to the implementation, the utility model can also have other embodiment.All use equivalents or equivalent change
The technical scheme to be formed is changed, is all fallen within the protection domain of the utility model requirement.Technology of the utility model without description is special
Levying can realize by or using prior art, will not be repeated here.
Claims (6)
1. a kind of hole diameter calibration loop of downhole instrument, including hollow torus, it is characterised in that：It is uniform on the torus
Multiple screws are distributed with, positioning screw is connected with each screw respectively, the turret head of each positioning screw is located at respectively
The outside of the torus, the axis of each positioning screw is located in approximately the same plane and the axis respectively with torus is vertical
It is intersecting；Locking nut is connected with each positioning screw respectively, each locking nut is press respectively against the interior of the torus
On wall.
2. the hole diameter calibration loop of downhole instrument according to claim 1, it is characterised in that：The inwall of the torus with
The position of each locking nut contact is respectively equipped with plane.
3. the hole diameter calibration loop of downhole instrument according to claim 1, it is characterised in that：The axis of each screw point
Not Wei Yu torus width middle part.
4. the hole diameter calibration loop of downhole instrument according to claim 1, it is characterised in that：The positioning screw is provided with four
Root, four positioning screws are in right-angled intersection.
5. the hole diameter calibration loop of downhole instrument according to any one of claim 1 to 4, it is characterised in that：The circle
The anti-skidding baffle plate that the upper surface uniform welding directed circle ring axis direction of ring body is stretched out.
6. the hole diameter calibration loop of downhole instrument according to claim 5, it is characterised in that：The anti-skidding baffle plate is along described
The even circumferential of torus is distributed with four, the axis of each anti-skidding baffle plate and the axis angle at 45 ° of adjacent positioned screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621109198.8U CN206174955U (en) | 2016-10-10 | 2016-10-10 | Hole diameter calibration loop used of instrument in pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621109198.8U CN206174955U (en) | 2016-10-10 | 2016-10-10 | Hole diameter calibration loop used of instrument in pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206174955U true CN206174955U (en) | 2017-05-17 |
Family
ID=58677315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621109198.8U Expired - Fee Related CN206174955U (en) | 2016-10-10 | 2016-10-10 | Hole diameter calibration loop used of instrument in pit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206174955U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108756281A (en) * | 2018-04-25 | 2018-11-06 | 温州职业技术学院 | Historic building fire prevention protective reinforcing device |
| CN109613317A (en) * | 2018-11-29 | 2019-04-12 | 江阴市星火电子科技有限公司 | High-precision rogowski coil |
| CN109613316A (en) * | 2018-11-29 | 2019-04-12 | 江阴市星火电子科技有限公司 | A kind of high-precision rogowski coil |
| CN109813941A (en) * | 2019-02-20 | 2019-05-28 | 山东元星电子有限公司 | A kind of method of flexible Luo-coil bracket and installation conducting wire to be measured |
-
2016
- 2016-10-10 CN CN201621109198.8U patent/CN206174955U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108756281A (en) * | 2018-04-25 | 2018-11-06 | 温州职业技术学院 | Historic building fire prevention protective reinforcing device |
| CN108756281B (en) * | 2018-04-25 | 2020-12-18 | 温州职业技术学院 | Protection and reinforcement device for wooden members of ancient buildings |
| CN109613317A (en) * | 2018-11-29 | 2019-04-12 | 江阴市星火电子科技有限公司 | High-precision rogowski coil |
| CN109613316A (en) * | 2018-11-29 | 2019-04-12 | 江阴市星火电子科技有限公司 | A kind of high-precision rogowski coil |
| CN109613316B (en) * | 2018-11-29 | 2020-12-29 | 江阴市星火电子科技有限公司 | High-precision Rogowski coil |
| CN109813941A (en) * | 2019-02-20 | 2019-05-28 | 山东元星电子有限公司 | A kind of method of flexible Luo-coil bracket and installation conducting wire to be measured |
| CN109813941B (en) * | 2019-02-20 | 2020-10-30 | 山东元星电子有限公司 | Flexible Roche coil support and method for mounting lead to be tested |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170517 Termination date: 20171010 |