CN202081839U - Logging-while-drilling acoustic logging sound isolation device - Google Patents
Logging-while-drilling acoustic logging sound isolation device Download PDFInfo
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- CN202081839U CN202081839U CN2011202030107U CN201120203010U CN202081839U CN 202081839 U CN202081839 U CN 202081839U CN 2011202030107 U CN2011202030107 U CN 2011202030107U CN 201120203010 U CN201120203010 U CN 201120203010U CN 202081839 U CN202081839 U CN 202081839U
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- drilling
- sound isolation
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Abstract
The utility model discloses a logging-while-drilling acoustic logging sound isolation device, which comprises a drill collar for installing emitting and receiving probes, wherein the drill collar is provided with a plurality of sound isolation grooves for isolating drill collar mode waves or structural sound waves; and the sound isolation grooves are annularly and uniformly formed on the drill collar. The logging-while-drilling acoustic logging sound isolation device has a simple structure, a reasonable design, a good sound isolation effect and high mechanical strength, drill collar waves or structural sound waves can be isolated effectively, and the requirement of a drilling project on the rigidity of a drill stem system in the logging-while-drilling process can be met.
Description
Technical field
The utility model relates to a kind of oil drilling apparatus, relates in particular to a kind of with boring the acoustic logging sound arrester.
Background technology
Along with global oil drilling activity is shifted to the sea from land, the quantity of high angle hole, multilateral well, horizontal well continues to increase, the demand of supporting with it logging while drilling technology is also increasing, according to statistics, at sea in the drillng operation, the ratio of using well logging during is up to more than 95%, and the output value of annual well logging during service has accounted for more than 25% of the whole well logging industry output value.In the actual effect of well logging during, high profit and advanced temptation with order about down, famous in the world petroleum works service company has all strengthened the R﹠D intensity of logging while drilling technology just.Domestic research in the well logging during field also is in the starting stage, has carried out in succession in recent years with the research of boring aspects such as gamma, induction motor, neutron density, and is also less with the correlative study report that bores acoustic logging instrument.
Comparing with the normal cable acoustic logging instrument, is that it transmits and receives probe and all is installed on the drill collar with the characteristics of boring the acoustic logging instrument maximum, and the intensity height of drill collar, plays the effect of load-bearing, pressure-bearing in drilling engineering.In the measurement while drilling of stratum compressional wave information, high frequency monopole sound source can excite a kind of drill collar mode wave in drill collar, this pattern wave amplitude is far longer than the amplitude of stratum compressional wave and it does not carry formation information, the drill collar ripple often is difficult to stratum compressional wave weave in differentiate, and must carry out compression process to it and could measure the stratum compressional wave more accurately to obtain formation information.The sound arrester that the normal cable acoustic logging is used, because of it compares " softness ", mechanical strength is low, be difficult to satisfy the requirement of drilling engineering, can not be used for the isolation of boring acoustic logging instrument drill collar mode wave, therefore most important to the measurement of stratum compressional wave information with the sound arrester design of boring acoustic logging instrument drill collar ripple.
The utility model content
Technical problem to be solved in the utility model provides a kind of simple in structure, and is reasonable in design, and defening effect is good, mechanical strength is high, can satisfy in the drilling course drilling engineering to the requirement of DRILL-STRING SYSTEM rigidity.
For solving the problems of the technologies described above, the technical solution of the utility model is: with boring the acoustic logging sound arrester, comprise and be used to install the drill collar that transmits and receives probe, described drill collar is provided with a plurality of sound insulation grooves that are used to isolate drill collar mode wave or structure sound wave, and described sound insulation groove evenly is arranged on the described drill collar in the form of a ring.
The external diameter of described drill collar is 125-129mm, and the length of described sound insulation groove is 103-107mm.
After having adopted technique scheme, the beneficial effect that the utility model is obtained is: the utility model is simple in structure, reasonable in design, can effectively isolate drill collar ripple or structure sound wave, defening effect is good, mechanical strength is high, can satisfy in the drilling course drilling engineering to the requirement of DRILL-STRING SYSTEM rigidity.
Description of drawings
Accompanying drawing is the structural representation of the utility model embodiment.
The specific embodiment
As shown in drawings, with boring the acoustic logging sound arrester, comprise being used to install the drill collar 1 that transmits and receives probe, described drill collar 1 is provided with a plurality of sound insulation grooves 2 that are used to isolate drill collar mode wave or structure sound wave, and described sound insulation groove 2 evenly is arranged on the described drill collar 1 in the form of a ring.Realize the abrupt change of cross-section of drill collar 1 by on drill collar 1, offering sound insulation groove 2, cause the impedance mismatching of structure based on permanent structure generation abrupt change of cross-section meeting, can make the drill collar ripple in communication process, run into the reflection of discontinuous place or suppress a part of drill collar ripple, thereby play the Principles of Acoustics of isolating drill collar ripple or structure sound wave, and select rational cutting parameter and groove layout type, can effectively isolate drill collar ripple or structure sound wave, learn through test, operating ambient temperature is 150 ℃, maximum pressure 145MPa, the utility model are that the sound insulation factor of drill collar mode wave of monopole source excitation of 10kHz is greater than 35 decibels to dominant frequency.The utility model is that benchmark designs with drill collar 1, the mechanical strength height, can satisfy in the drilling course drilling engineering to the requirement of DRILL-STRING SYSTEM rigidity.Certainly, also can use other structure.
The external diameter of described drill collar 1 is 125-129mm, and the length of described sound insulation groove 2 is 103-107mm.The parameter of drill collar 1 is f127mm * 6000mm, and the parameter of sound insulation groove 2 can be 105mm * R6, can effectively isolate drill collar ripple or structure sound wave by this dimensional parameters, plays better isolation effect.
The utility model is simple in structure, and is reasonable in design, can effectively isolate drill collar ripple or structure sound wave, and defening effect is good, mechanical strength is high, can satisfy in the drilling course drilling engineering to the requirement of DRILL-STRING SYSTEM rigidity.
The utility model discloses a kind of with boring the acoustic logging sound arrester, comprise and be used to install the drill collar that transmits and receives probe, described drill collar is provided with a plurality of sound insulation grooves that are used to isolate drill collar mode wave or structure sound wave, and described sound insulation groove evenly is arranged on the described drill collar in the form of a ring.The utility model is simple in structure, and is reasonable in design, can effectively isolate drill collar ripple or structure sound wave, and defening effect is good, mechanical strength is high, can satisfy in the drilling course drilling engineering to the requirement of DRILL-STRING SYSTEM rigidity.
Claims (2)
1. with boring the acoustic logging sound arrester, it is characterized in that: comprise being used to install the drill collar that transmits and receives probe, described drill collar is provided with a plurality of sound insulation grooves that are used to isolate drill collar mode wave or structure sound wave, and described sound insulation groove evenly is arranged on the described drill collar in the form of a ring.
2. according to claim 1 it is characterized in that: the external diameter of described drill collar is 125-129mm with boring the acoustic logging sound arrester, and the length of described sound insulation groove is 103-107mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202030107U CN202081839U (en) | 2011-06-16 | 2011-06-16 | Logging-while-drilling acoustic logging sound isolation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202030107U CN202081839U (en) | 2011-06-16 | 2011-06-16 | Logging-while-drilling acoustic logging sound isolation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202081839U true CN202081839U (en) | 2011-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202030107U Expired - Fee Related CN202081839U (en) | 2011-06-16 | 2011-06-16 | Logging-while-drilling acoustic logging sound isolation device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102877827A (en) * | 2012-10-10 | 2013-01-16 | 中国石油天然气集团公司 | Acoustic system module of acoustic logging while drilling |
| CN103352692A (en) * | 2013-07-31 | 2013-10-16 | 中国石油大学(华东) | Optimized design method of reducing sonic system sound insulator of acoustic logging-while-drilling drill collar |
| CN103397878A (en) * | 2013-07-31 | 2013-11-20 | 中国石油大学(华东) | Acoustic logging-while-drilling device of variable-diameter sound insulation structure |
| CN104234705A (en) * | 2013-06-13 | 2014-12-24 | 中国石油集团长城钻探工程有限公司 | Shock absorption and noise reduction structure for sonic logging tool |
| CN104453854A (en) * | 2014-12-17 | 2015-03-25 | 中国石油大学(华东) | Acoustic logging while drilling method and device based on double-source flyback technology |
| CN108412484A (en) * | 2018-04-19 | 2018-08-17 | 赵国山 | A kind of wireless sonic transmissions shaft bottom noise isolator based on drill string channel |
-
2011
- 2011-06-16 CN CN2011202030107U patent/CN202081839U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102877827A (en) * | 2012-10-10 | 2013-01-16 | 中国石油天然气集团公司 | Acoustic system module of acoustic logging while drilling |
| CN102877827B (en) * | 2012-10-10 | 2015-03-11 | 中国石油天然气集团公司 | Acoustic system module of acoustic logging while drilling |
| CN104234705A (en) * | 2013-06-13 | 2014-12-24 | 中国石油集团长城钻探工程有限公司 | Shock absorption and noise reduction structure for sonic logging tool |
| CN104234705B (en) * | 2013-06-13 | 2019-11-29 | 中国石油集团长城钻探工程有限公司 | Shock-reducing and noise-reducing structure for acoustic logging instrument |
| CN103352692A (en) * | 2013-07-31 | 2013-10-16 | 中国石油大学(华东) | Optimized design method of reducing sonic system sound insulator of acoustic logging-while-drilling drill collar |
| CN103397878A (en) * | 2013-07-31 | 2013-11-20 | 中国石油大学(华东) | Acoustic logging-while-drilling device of variable-diameter sound insulation structure |
| CN103352692B (en) * | 2013-07-31 | 2015-04-15 | 中国石油大学(华东) | Optimized design method of reducing sonic system sound insulator of acoustic logging-while-drilling drill collar |
| CN103397878B (en) * | 2013-07-31 | 2015-06-24 | 中国石油大学(华东) | Acoustic logging-while-drilling device of variable-diameter sound insulation structure |
| CN104453854A (en) * | 2014-12-17 | 2015-03-25 | 中国石油大学(华东) | Acoustic logging while drilling method and device based on double-source flyback technology |
| CN108412484A (en) * | 2018-04-19 | 2018-08-17 | 赵国山 | A kind of wireless sonic transmissions shaft bottom noise isolator based on drill string channel |
| CN108412484B (en) * | 2018-04-19 | 2023-12-22 | 中石化石油工程技术服务有限公司 | Bottom hole noise isolation device for wireless sound wave transmission based on drill string channel |
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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: 20111221 Termination date: 20140616 |
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| EXPY | Termination of patent right or utility model |