CN202266254U - Downhole instrument damping device - Google Patents
Downhole instrument damping device Download PDFInfo
- Publication number
- CN202266254U CN202266254U CN2011201744858U CN201120174485U CN202266254U CN 202266254 U CN202266254 U CN 202266254U CN 2011201744858 U CN2011201744858 U CN 2011201744858U CN 201120174485 U CN201120174485 U CN 201120174485U CN 202266254 U CN202266254 U CN 202266254U
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- China
- Prior art keywords
- joint
- outer tube
- downhole instrument
- spring
- central axis
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- Expired - Fee Related
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Abstract
The utility model relates to a downhole instrument damping device, which is composed of a joint, a compression spring, a central axle, a spherical elastomer, an outer tube and a guide cone, wherein the joint is in the cylindrical shape, the upper part of the joint is provided with an external thread and connected with a downhole instrument, the lower part of the joint is provided with an internal thread and connected with the external thread on the upper end of the center axle; the center axle is in the cylindrical shape, the lower part of the center axle is provided with a boss; the outer tube is a cylindrical tube body, the upper part of the outer tube is provided with an internal shoulder, the center axle is hung on the internal shoulder on the upper part of the outer tube, a spring is mounted in the outer tube, an internal thread is arranged on the lower part of the outer tube and connected with the external thread of the guide cone; the spherical elastomer is formed by combining upper, lower parallel support round disks and an elastic steel slice mounted between the support round disks and sleeved with the center axle, a spring is arranged between the upper support round disk and the joint. The downhole instrument damping device has the following beneficial effects: after the horizontal damping and the vertical damping function is realized, the acute impact force of the downhole instrument from all directions is effectively decomposed and the corresponding destructive seismic wave is eliminated.
Description
Technical field
The utility model relates to a kind of downhole instrument damping device, belongs to oil gas field downhole testing instrument damping device technical field.
Background technology
The downhole instrument damping device that oil gas field uses in production logging, oil recovery test jobs is generally assembled by joint, urceolus, hydraulic oil and piston back taper; Be hydraulic damping formula damping classification; Be mainly used in the damping of instrument aspect vertically, the vertical cushioning effect after can only satisfying instrument and being hampered; On instrument, put and let slip the no cushioning effect of left and right sides lateral impact vibrations that instrument and the borehole wall take place in the journey, increased the probability of downhole instrument fault, be prone to cause the test job interruption.
The patent No. is that 200420031928.8 patent discloses the downhole electronic pressure bomb damper; Comprise the pressure gauge connecting rod that links to each other with pressure gauge, taper spring, secondary spring, the holder tube jointing, the spring base that link to each other with the holder tube; The pressure gauge connecting rod is the integrative-structure that the body of rod and bar head constitute; Be set with secondary spring on the body of rod, be symmetrical in auxiliary cushion collar, the spring bushing of secondary spring both sides; The outside in secondary spring, auxiliary cushion collar, spring bushing is equipped with two taper springs, and two taper spring symmetries are positioned over the both sides of spring base, and spring base and a holder jointing are through being threaded.Only be applicable to the damping device of electronic pressure gauge.
Summary of the invention
The utility model provides that a kind of to collect horizontal damping be the downhole instrument damping device of one with vertical damping.
To achieve these goals, the technical scheme of the utility model has adopted a kind of downhole instrument damping device, is made up of joint, compression spring, central axis, spherical elastic body, urceolus, starting taper; Joint is a cylinder, and external screw thread is arranged at top, can be connected with downhole probe, and internal thread is arranged at the bottom, is connected with the central axis upper external screw thread; Central axis is a cylinder, and the bottom is provided with boss; Urceolus is a cylindrical tube, and top is provided with interior shoulder, and central axis is articulated on the interior shoulder on urceolus top, and spring is installed in the urceolus, and the bottom is provided with internal thread, is connected with the starting taper external screw thread; Spherical elastic body is by parallel up and down support disk and be installed in that elastic steel sheet combines between the support disk, is sleeved on the central axis, between last support disk and joint, spring is installed.
Central axis is a tubular body.
The beneficial effect of the utility model is; After the effect that realizes horizontal damping and vertically damping; Can effectively decompose downhole instrument violent bump dynamics from each side in the process of removing; Dissipate the humorous seismic wave of corresponding destructiveness, the electrical equipment of protection downhole instrument is intact and improve circuit safety property, guarantees the test assignment completion.
Description of drawings
Fig. 1 is the structural representation of the utility model.
The specific embodiment
The utility model is made up of joint 1, compression spring, central axis 3, spherical elastic body, urceolus 6, starting taper 7; Joint 1 is a cylinder, and external screw thread is arranged at top, can be connected with downhole probe, and internal thread is arranged at the bottom, is connected with central axis 3 upper external screw threads; Central axis 3 is a cylinder, and the bottom is provided with boss; Urceolus 6 is a cylindrical tube, and top is provided with interior shoulder, and central axis 3 is articulated on the interior shoulder on urceolus 6 tops, and spring 5 is installed in the urceolus 6, and the bottom is provided with internal thread, is connected with starting taper 7 external screw threads; Spherical elastic body is by parallel up and down support disk and be installed in that elastic steel sheet 4b combines between the support disk, is sleeved on the central axis 3, between last support disk 4a and joint 1, spring 2 is installed.
Described central axis 3 is a tubular body.
In being lowered to the downhole probe process, if be hampered, then at first contact the face that is hampered by starting taper 7, the compression spring 5 in the urceolus 6 is impacted in central axis 3 lower ends, cushions the potential energy of its top instrument, thereby realizes vertical damping; In working the instrument process of going into the well; At first contact from horizontal collision by the elastic steel sheet 4b on the spherical elastic body; Be the trend of stretching after elastic steel sheet 4b is stressed, promote the spherical elastomeric support disk 4a of going up and move up, this moment, spring 2 played a role; Buffering is compressed in impact to last support disk 4a transmits, realizes the horizontal damping of instrument.
Claims (2)
1. a downhole instrument damping device is made up of joint (1), compression spring, central axis (3), spherical elastic body, urceolus (6), starting taper (7); It is characterized in that: joint (1) is a cylinder, and external screw thread is arranged at top, can be connected with downhole probe, and internal thread is arranged at the bottom, is connected with central axis (3) upper external screw thread; Central axis (3) is a cylinder, and the bottom is provided with boss; Urceolus (6) is a cylindrical tube, and top is provided with interior shoulder, and central axis (3) is articulated on the interior shoulder on urceolus (6) top, and spring (5) is installed in the urceolus (6), and the bottom is provided with internal thread, is connected with starting taper (7) external screw thread; Spherical elastic body is by parallel up and down support disk and be installed in elastic steel sheet between the support disk (4b) and combine, and is sleeved on the central axis (3), between last support disk (4a) and joint (1), spring (2) is installed.
2. a kind of downhole instrument damping device according to claim 1 is characterized in that: central axis (3) is a tubular body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201744858U CN202266254U (en) | 2011-05-27 | 2011-05-27 | Downhole instrument damping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201744858U CN202266254U (en) | 2011-05-27 | 2011-05-27 | Downhole instrument damping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202266254U true CN202266254U (en) | 2012-06-06 |
Family
ID=46157052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201744858U Expired - Fee Related CN202266254U (en) | 2011-05-27 | 2011-05-27 | Downhole instrument damping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202266254U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105024515A (en) * | 2015-08-06 | 2015-11-04 | 宁波创客工业设计有限公司 | Vibration motor |
| CN105156537A (en) * | 2015-09-11 | 2015-12-16 | 松冷（武汉）科技有限公司 | Metallic spherical shock absorber |
| CN109238260A (en) * | 2018-10-30 | 2019-01-18 | 贵州新联爆破工程集团有限公司 | A kind of improved RTK bar |
| CN109236278A (en) * | 2018-08-21 | 2019-01-18 | 中国石油天然气股份有限公司 | Downhole testing instrument integrated protection device |
| CN109882090A (en) * | 2018-01-31 | 2019-06-14 | 成都科盛石油科技有限公司 | A kind of ancillary equipment excavated for petroleum |
-
2011
- 2011-05-27 CN CN2011201744858U patent/CN202266254U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105024515A (en) * | 2015-08-06 | 2015-11-04 | 宁波创客工业设计有限公司 | Vibration motor |
| CN105024515B (en) * | 2015-08-06 | 2018-06-08 | 宁波创客工业设计有限公司 | Vibrating motor |
| CN105156537A (en) * | 2015-09-11 | 2015-12-16 | 松冷（武汉）科技有限公司 | Metallic spherical shock absorber |
| CN109882090A (en) * | 2018-01-31 | 2019-06-14 | 成都科盛石油科技有限公司 | A kind of ancillary equipment excavated for petroleum |
| CN109882090B (en) * | 2018-01-31 | 2020-09-08 | 成都科盛石油科技有限公司 | Auxiliary equipment for oil excavation |
| CN109236278A (en) * | 2018-08-21 | 2019-01-18 | 中国石油天然气股份有限公司 | Downhole testing instrument integrated protection device |
| CN109238260A (en) * | 2018-10-30 | 2019-01-18 | 贵州新联爆破工程集团有限公司 | A kind of improved RTK bar |
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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: 20120606 Termination date: 20130527 |