CN201915943U - Axial shock absorber suitable for measurement while drilling instrument - Google Patents
Axial shock absorber suitable for measurement while drilling instrument Download PDFInfo
- Publication number
- CN201915943U CN201915943U CN2010205874818U CN201020587481U CN201915943U CN 201915943 U CN201915943 U CN 201915943U CN 2010205874818 U CN2010205874818 U CN 2010205874818U CN 201020587481 U CN201020587481 U CN 201020587481U CN 201915943 U CN201915943 U CN 201915943U
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- Prior art keywords
- oil storage
- measurement
- drilling
- spring
- drilling instrument
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- Expired - Lifetime
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- 238000005553 drilling Methods 0.000 title claims abstract description 45
- 238000005259 measurement Methods 0.000 title claims abstract description 19
- 230000035939 shock Effects 0.000 title claims abstract description 17
- 239000006096 absorbing agent Substances 0.000 title abstract 5
- 238000010521 absorption reaction Methods 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 239000003921 oil Substances 0.000 claims description 36
- 238000013016 damping Methods 0.000 claims description 12
- 239000010720 hydraulic oil Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract 1
- 235000017491 Bambusa tulda Nutrition 0.000 abstract 1
- 241001330002 Bambuseae Species 0.000 abstract 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract 1
- 239000011425 bamboo Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 7
- 230000009102 absorption Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
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Abstract
The utility model provides an axial bumper shock absorber suitable for measurement while drilling instrument, relates to the manufacturing and designing technical field of measurement while drilling instrument bumper shock absorber in the pit, the utility model discloses adopt a section of thick bamboo multiple shock-absorbing structure, designed an axial bumper shock absorber suitable for measurement while drilling instrument, including oil storage bin, damper cylinder, spring and support connecting rod, gapped between oil storage bin and the damper cylinder, the spring sets up the lower terminal surface in oil storage bin, support the connecting rod and fix in the bottom surface in oil storage bin and pass the spring lower part and connect the bearing cylinder; the shock absorber can solve the problems of shock and impact during gas drilling and has the shock absorbing combination characteristics of three different types, namely liquid shock absorption, spring shock absorption and transverse gap shock absorption.
Description
Technical field: a kind of axial damper that is applicable to measurement while-drilling instrument; the protection that is used to adopt gas medium to bore the well track monitoring steering tool of directional well or horizontal well relates to the design and manufacturing technology field of the DHM-MWD instrument damper of gas drilling.
Background technology: in order in drilling process, to protect oil and gas reservoir to greatest extent, make drilled stratum not be subjected to the pollution of drilling mud, keep produce oil or the original storing state of gas pay, present mode is to adopt the drilling well of gas as circulatory mediator carrying out horizontal well, and this technology is called gas usually for short and bores directional well, gas horizontal well drilling technology; And when implementing gas brill directional well or gas horizontal well drilling, need understand the well track of down-hole in real time, so that guarantee that drill bit creeps into along planned course or oil-gas Layer, so just need to adopt the technology and equipment of well track monitoring.At present, generally the monitoring technology of Cai Yonging is near in the drilling tool of drill bit measurement while-drilling instrument to be set, then the data that record are sent to the underground survey data by the multistage cable electromagnetic wave emission inserting tube at drill string middle part, electromagnetic wave emission inserting tube is sent to ground by the radio magnetic wave signal with data again, and this technology can increase the degree of depth of downhole data transmission; The problem that present mode exists is: during owing to the enforcement gas drilling, there is not the support of liquid in the pit shaft, the vibrations of down-hole equipment and impact are very big during gas drilling, under the operating mode condition of severe, the measurement while drilling device is easily damaged, in case damage, just can not finish the task of measurement while drilling and transmission signal.
Summary of the invention: the utility model is primarily aimed at the shortcoming of prior art, takes the structure of a multiple damping, has designed a kind of axial damper that is applicable to measurement while-drilling instrument.
The utility model is achieved in that the utility model comprises liquid damping mechanism and mechanical shock absorption mechanism, is characterized in that:
The oil storage storehouse 4 of described liquid damping mechanism is arranged in the damper cylinder 3, gapped between oil storage storehouse 4 and damper cylinder 3, described mechanical shock absorption mechanism is made of spring 5, supporting linkage 6, spring 5 is arranged on the lower surface in oil storage storehouse 4, and supporting linkage 6 is fixed on the bottom surface in oil storage storehouse 4 and passes spring 5 and the bottom surface of damper cylinder 3 is connected with the steering tool bearing tube 9 of bottom;
Gap between described oil storage storehouse 4 and the damper cylinder 3 is 5mm～10mm;
In the described oil storage storehouse 4 hydraulic oil 8 is housed;
The upper end of described damper cylinder 3 is connected by joint 7;
Described oil storage storehouse 4 is to be made by heatproof anti-corrosive rubber material;
During following well construction, the utility model is connected the upper end of measurement while-drilling instrument bearing tube 9, then upper end of the present utility model is hung in the drilling tool 1 by hanging head 2, again inside is provided with drilling tool of the present utility model and connects the drilling tool that the multistage cable is equipped with on top in advance successively, dock with the drilling tool that the drill string middle part has the electromagnetic wave transmitter structure until cable, continue again to bore down just can implement drilling well.
The beneficial effects of the utility model are:
The utility model has adopted liquid damping, three kinds of different damping combinations of spring shock absorption and lateral clearance damping simultaneously in same bearing tube, can shake longitudinally from drilling tool by rubber oil storage storehouse that hydraulic oil is housed and common elimination of spring in the process of creeping into, between oil storage storehouse and damper cylinder, leave the gap, and owing to the oil storage storehouse is made by rubber, so even the drilling tool and the borehole wall bump the gap of reserving the and also vibrations that collision produces can be cut down in a large number by the oil storage storehouse that rubber is made; Through test of many times, the utility model is provided with the damping design can weaken more than 50% of inserting tube vibrations, can effectively protect the precise electronic components and parts in the measurement while drilling exploring tube, therefore can guarantee the reliable segment transmissions of underground signal in the drilling process.
Description of drawings:
Fig. 1 is the syndeton schematic diagram of the utility model in drilling tool.
The specific embodiment:
Below in conjunction with accompanying drawing the utility model is further specified:
Embodiment 1:
The utility model comprises liquid damping mechanism and mechanical shock absorption mechanism, the oil storage storehouse 4 of liquid damping mechanism is arranged in the damper cylinder 3, the upper end of damper cylinder 3 is connected by joint 7, and oil storage storehouse 4 is to be made by heatproof anti-corrosive rubber material, is perfused with hydraulic oil 8 in oil storage storehouse 4; In order to reduce the direct collision between oil storage storehouse 4 and the drilling tool, between oil storage storehouse 4 and damper cylinder 3, leave the gap, the gap between oil storage storehouse 4 and the damper cylinder 3 is 5mm～10mm; Mechanical shock absorption mechanism comprises spring 5 and supporting linkage 6, and spring 5 is arranged on the lower surface in oil storage storehouse 4, and the upper end of supporting linkage 6 is fixed on the bottom surface in oil storage storehouse 4, and the bottom surface that spring 5 and damper cylinder 3 are passed in the lower end is connected with the steering tool bearing tube 9 of bottom;
Embodiment 2:
Assembling sequence of the present utility model is: be connected and fixed supporting linkage 6 in the bottom surface in oil storage storehouse 4 earlier, the spring 5 of in damper cylinder 3, packing into then, the supporting linkage 6 that 4 lower ends, oil storage storehouse are connected passes the bottom surface of spring and damper cylinder again, upper surface with damper cylinder 3 is connected with joint 7 by screw thread then, joint 7 is connected with hanging head 2, the lower end with supporting linkage 6 is connected with steering tool bearing tube 9 by screw thread at last again; Finish back just can the going into the well of connection and implement the drilling engineering construction.
Embodiment 3:
When using the utility model in the gas medium drilling well, to implement measurement while drilling, because the rotation of drilling tool does not have the support of mud materials, therefore the vibrations that produce are bigger, and from vertical and horizontal, make oil storage of the present utility model storehouse 4 produce elasticity from vibrations longitudinally, under the cooperation of oil storage storehouse 4 lower springs 5, therefore vibrations can or not produced directly vibrations to the measurement while-drilling instrument that is arranged on the utility model below by a large amount of absorptions; When drilling tool and the borehole wall bump; will produce horizontal vibrations; owing to leave the free gap between oil storage storehouse 4 and the damper cylinder 3; when transverse vibration takes place; because the oil storage storehouse is made by rubber; elasticity is preferably arranged; so; even the drilling tool and the borehole wall bump; the gap of reserving the and also vibrations that collision produces can be slowed down in a large number by the oil storage storehouse that rubber is made; shaking force can not be directly passed to oil storage storehouse 4; but just can pass to oil storage storehouse 4 after needing to eliminate the gap of reserving earlier; therefore can slow down in a large number from horizontal vibrations; through test of many times, under protection of the present utility model, the damping of the utility model setting design can weaken more than 50% of inserting tube vibrations; can effectively protect and comprise hole deviation in the measurement while drilling exploring tube; the orientation; therefore temperature and vibrations can guarantee the reliable segment transmissions of underground signal in the drilling process at interior precise electronic components and parts.
Claims (4)
1. longitudinal vibration damper that is applicable to measurement while-drilling instrument, comprise liquid damping mechanism and mechanical shock absorption mechanism, it is characterized in that: the oil storage storehouse of described liquid damping mechanism is arranged in the damper cylinder, gapped between oil storage storehouse and damper cylinder, described mechanical shock absorption mechanism is made of spring, supporting linkage, spring is arranged on the lower surface in oil storage storehouse, and supporting linkage is fixed on the bottom surface in oil storage storehouse and passes spring and the bottom surface of damper cylinder is connected with the steering tool bearing tube of bottom.
2. the longitudinal vibration damper that is applicable to measurement while-drilling instrument according to claim 1 is characterized in that: the gap between described oil storage storehouse and the damper cylinder is 5mm～10mm.
3. the longitudinal vibration damper that is applicable to measurement while-drilling instrument according to claim 1 is characterized in that: described oil storage is equipped with hydraulic oil in the storehouse.
4. the longitudinal vibration damper that is applicable to measurement while-drilling instrument according to claim 1 is characterized in that: the upper end of described damper cylinder is connected by joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205874818U CN201915943U (en) | 2010-11-02 | 2010-11-02 | Axial shock absorber suitable for measurement while drilling instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205874818U CN201915943U (en) | 2010-11-02 | 2010-11-02 | Axial shock absorber suitable for measurement while drilling instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201915943U true CN201915943U (en) | 2011-08-03 |
Family
ID=44415745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205874818U Expired - Lifetime CN201915943U (en) | 2010-11-02 | 2010-11-02 | Axial shock absorber suitable for measurement while drilling instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201915943U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102061908A (en) * | 2010-11-02 | 2011-05-18 | 中国石油集团川庆钻探工程有限公司 | Axial shock absorber suitable for measurement while drilling instrument |
-
2010
- 2010-11-02 CN CN2010205874818U patent/CN201915943U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102061908A (en) * | 2010-11-02 | 2011-05-18 | 中国石油集团川庆钻探工程有限公司 | Axial shock absorber suitable for measurement while drilling instrument |
| CN102061908B (en) * | 2010-11-02 | 2014-02-26 | 中国石油集团川庆钻探工程有限公司 | Axial shock absorber suitable for measurement while drilling instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110803 Effective date of abandoning: 20140226 |
|
| RGAV | Abandon patent right to avoid regrant |