CN208423141U - A kind of test downhole data transmission antenna dielectric device - Google Patents
A kind of test downhole data transmission antenna dielectric device Download PDFInfo
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- CN208423141U CN208423141U CN201821051390.5U CN201821051390U CN208423141U CN 208423141 U CN208423141 U CN 208423141U CN 201821051390 U CN201821051390 U CN 201821051390U CN 208423141 U CN208423141 U CN 208423141U
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Abstract
The utility model discloses a kind of test downhole data transmission antenna dielectric device, comprising: upper drill body, one end are provided with the first groove；First sealing ring is O-ring, and circumferential seal is arranged in first groove；Second sealing ring is O-ring, and circumferential seal is arranged in first groove, and is arranged with first O-ring interval；Sealing ring is tightly disposed between first O-ring and the second O-ring；Antenna, one end are arranged in first groove；Control circuit, one end are connect with the antenna other end.The utility model has designed and developed a kind of test downhole data transmission antenna dielectric device, drill body and antenna is divided into two electrodes by O-ring and peek ring, structure is simple, high reliablity.
Description
Technical field
The utility model relates to petroleum and natural gas Exploration Domains, and more particularly, the utility model relates to a kind of tests
With downhole data transmission antenna dielectric device.
Background technique
In drilling process, underground real time information is known more, it more can be close to the wellbore target of high efficiency, low cost.
For real-time, continuous, monitor and control well track, downhole drilling instrument its performance characteristics must much can be depended on
The selection of information channel.
Electromagnetic wave measurement mode is low to property of drilling fluid and pumpage stability requirement, sends the reliability and drilling well of information
The heterogeneity of liquid is unrelated.Electromagnetic wave measurement technology development abroad quickly, it can be used for other aspect, for now, it
It is a kind of most effective technology of the real-time Transmission downhole data in gas drilling.Its working principle: underground survey unit will be surveyed
Amount data are transmitted to transmitter, and transmitter will pass through transmitting antenna electromagnetic signals to stratum, ground after data code modulation
Receiving device receives electromagnetic wave signal, restores measurement data after demodulating and decoding, and show in the display.But the country is at present to electricity
The research of magnetic wave drilling measuring technology is still in infancy.
In electromagnetic radiation and propagation, transmitting antenna is played a crucial role.Transmitting antenna is emitter
Energy is converted into the energy of electromagnetic wave, but can only bore since the particularity of drilling technology is determined with brill electromagnetic wave transmitting antenna
It makes an issue of on bar along drilling rod.
In drilling well circle, electromagnetic transmission is divided into two methods, i.e. loop coil coupling and directly coupled method.Early stage
Electromagnetic measurement while drilling system is mostly the method for loop coil coupling, and there are also apply for this method up to now.For very low or
Very high load impedance, the power level and impedance matching range of loop coil have stringent limitation, once coil is formed, almost
It is impossible to change the range of load matched.When being related to Extremely low frequency electronic magnetic fields transmission, best loop coil transmission device
True load can not be effectively matched, when the increase with drilling depth, which needs to reduce frequency, increases power, this transmitting dress
It sets and opposite characteristic is presented instead.
Directly coupled method can eliminate the disadvantages mentioned above of loop coil even summation method.This antenna is generally required drilling rod point
For two sections, two electrodes are formed, are separated among it by dielectric, this structure is commonly referred to as insulated antenna pipe nipple or day
Line seal.Since this insulated antenna pipe nipple will bear very high torque and pressure, it is desirable that antitorque and tension, compression strength
It is quite high, but its superiority is also quite prominent, is adapted to Extremely low frequency electronic magnetic fields launch requirements, do not need loop coil to
It can be made lesser diameter etc..These features are most important for drilling engineering, thus insulated antenna pipe nipple application is more next
It is more, but there is also many difficult when design: 1. existing insulated antenna pipe nipples pass through the ruler of abatement connection screw thread mostly
It is very little or process groove on screw thread to reach the function of upper lower drill insulation, greatly cut down the intensity of connection screw thread in this way, absolutely
Edge antenna pipe nipple should keep good insulation performance, while also be responsible for the transmitting pressure of bit pressure, so also to have higher
Mechanical property；2. structure is complicated mostly for existing insulated antenna pipe nipple, it is unfavorable for practical application.
Utility model content
The utility model has designed and developed a kind of test downhole data transmission antenna dielectric device, by O-ring and
Drill body and antenna are divided into two electrodes by peek ring, and structure is simple, high reliablity.
Technical solution provided by the utility model are as follows:
A kind of test downhole data transmission antenna dielectric device, comprising:
Upper drill body, one end are provided with the first groove；
First sealing ring is O-ring, and circumferential seal is arranged in first groove；
Second sealing ring is O-ring, and circumferential seal is arranged in first groove, and is sealed with described first
The setting of circle interval；
Sealing ring is tightly disposed between first sealing ring and the second sealing ring；
Antenna, one end are arranged in first groove；
Control circuit, one end are connect with the antenna other end.
Preferably, the sealing ring is peek ring.
Preferably, the control circuit includes:
The coaxial female connector of seven cores, one end are fixedly connected with the antenna other end, and the other end is circumferentially evenly arranged with
One sheet metal；
The coaxial pin end of seven cores, one end is provided with the second groove, and the second groove inner circumferential is evenly arranged with
Two sheet metals；
Wherein, the coaxial female connector other end of seven core is inserted into the second groove of the coaxial pin end of seven cores, and institute
It states the first sheet metal and second sheet metal corresponds.
It preferably, further include connector, one end is connect with the antenna other end, and the other end and seven core are coaxial
The connection of female connector one end.
It preferably, further include lower drill body, one end is fixedly connected with the coaxial pin end other end of seven core.
Preferably, further include tube body, be hollow structure, described tube body one end is fixedly connected with the upper drill body, separately
One end is fixedly connected with the lower drill body；
Wherein, the control circuit is arranged in the tube body hollow structure.
Preferably, further include third sealing ring, sealing be set in the coaxial pin end other end of seven core and with institute
Inboard wall of tube body sealed connection is stated, for sealing the control circuit.
It is described in the utility model the utility model has the advantages that
Test downhole data transmission antenna dielectric device described in the utility model, will be bored by O-ring and peek ring
Body and antenna are divided into two electrodes, and structure is simple, high reliablity, by drilling medium and switch pump influenced it is small, save drilling well when
Between.
Detailed description of the invention
Fig. 1 is the schematic cross-sectional view that downhole data transmission antenna dielectric device is used in test described in the utility model.
Specific embodiment
The following describes the utility model in further detail with reference to the accompanying drawings, to enable those skilled in the art referring to explanation
Book text can be implemented accordingly.
The utility model can there are many different forms to implement, and should not be construed as limited to again the implementation of this elaboration
Example, on the contrary, these embodiments are provided, so that the disclosure will be thorough and complete.In the accompanying drawings, for clarity, it can overstate
The size and relative size of big structure and region.
As shown in Figure 1, the utility model provides a kind of test downhole data transmission antenna dielectric device, comprising: upper to bore
Body 110, one end are provided with the first groove 111；First sealing ring 112, is O-ring, and circumferential seal setting is described the
In one groove 111；Second sealing ring 113, is O-ring, and circumferential seal is arranged in first groove 111, and with institute
State the setting of the first O-ring 112 interval；Sealing ring (is not shown in the figure, peek is polyethers ether copper material) for peek ring, tight
It is close to be arranged between first O-ring 112 and the second O-ring 113；Antenna (not shown), one end are arranged described
In first groove 111；The other end is connected with control circuit.
The control circuit includes: the coaxial female connector 120 of seven cores, and one end is fixedly connected with the antenna other end, separately
One end is circumferentially evenly arranged with the first sheet metal 121；The coaxial pin end 130 of seven cores, one end are provided with the second groove 131, and
Second groove, 131 inner circumferential is evenly arranged with the second sheet metal 132；Wherein, coaxial 120 other end of female connector of seven core
It is inserted into the second groove 131 of the coaxial pin end of seven cores, and first sheet metal 121 and second sheet metal 131
It corresponds.
It further include connector 140 as another embodiment of the utility model, one end and the antenna other end connect
It connects, the other end is connect with coaxial 120 one end of female connector of seven core.
It further include lower drill body 150, one end and the fixed company of coaxial 130 other end of pin end of seven core in the present embodiment
It connects.Further include tube body 160, be hollow structure, described 160 one end of tube body is fixedly connected with the upper drill body 110, the other end with
The lower drill body 150 is fixedly connected；Wherein, the control circuit is arranged in 160 hollow structure of tube body.
It further include third sealing ring 170 as another embodiment of the utility model, it is same that sealing is set in seven core
130 other end of axis pin end and with 160 inner wall of tube body be tightly connected, for sealing the control circuit.
Described antenna one end is protruded into first groove 111, and the other end is connect with the connector 140, passes through the first O
Antenna is divided into two electrodes by type circle and the second O-ring and peek ring with upper and lower drill body respectively, environment electricity in the well that will test
Magnetostatic wave signal is transmitted by direct-coupling.
Test downhole data transmission antenna dielectric device described in the utility model, will be bored by O-ring and peek ring
Body and antenna are divided into two electrodes, and structure is simple, high reliablity, by drilling medium and switch pump influenced it is small, save drilling well when
Between.
It is not only in the description and the implementation although the embodiments of the present invention have been disclosed as above
Listed utilization, it can be applied to various fields suitable for the present invention completely, for those skilled in the art,
Other modifications may be easily implemented, therefore without departing from the general concept defined in the claims and the equivalent scope, this reality
It is not limited to specific details and legend shown and described herein with novel.
Claims (7)
1. a kind of test downhole data transmission antenna dielectric device characterized by comprising
Upper drill body, one end are provided with the first groove；
First sealing ring is O-ring, and circumferential seal is arranged in first groove；
Second sealing ring is O-ring, and circumferential seal is arranged in first groove, and between first sealing ring
Every setting；
Sealing ring is tightly disposed between first sealing ring and the second sealing ring；
Antenna, one end are arranged in first groove；
Control circuit, one end are connect with the antenna other end.
2. test downhole data transmission antenna dielectric device as described in claim 1, which is characterized in that the sealing ring is
Peek ring.
3. test downhole data transmission antenna dielectric device as described in claim 1, which is characterized in that the control circuit
Include:
The coaxial female connector of seven cores, one end are fixedly connected with the antenna other end, and the other end is circumferentially evenly arranged with the first gold medal
Belong to piece；
The coaxial pin end of seven cores, one end is provided with the second groove, and the second groove inner circumferential is evenly arranged with the second gold medal
Belong to piece；
Wherein, the coaxial female connector other end of seven core is inserted into the second groove of the coaxial pin end of seven cores, and described
One sheet metal and second sheet metal correspond.
4. test downhole data transmission antenna dielectric device as claimed in claim 3, which is characterized in that further include connection
Part, one end are connect with the antenna other end, and the other end is connect with the coaxial female connector one end of seven core.
5. the downhole data transmission antenna dielectric device of test as described in claim 3 or 4, which is characterized in that under further including
Drill body, one end are fixedly connected with the coaxial pin end other end of seven core.
6. test downhole data transmission antenna dielectric device as claimed in claim 5, which is characterized in that it further include tube body,
It is hollow structure, and described tube body one end is fixedly connected with the upper drill body, and the other end is fixedly connected with the lower drill body；
Wherein, the control circuit is arranged in the tube body hollow structure.
7. test downhole data transmission antenna dielectric device as claimed in claim 6, which is characterized in that further include that third is close
Seal, sealing is set in the coaxial pin end other end of seven core and is tightly connected with the inboard wall of tube body, for sealing
State control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821051390.5U CN208423141U (en) | 2018-07-04 | 2018-07-04 | A kind of test downhole data transmission antenna dielectric device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821051390.5U CN208423141U (en) | 2018-07-04 | 2018-07-04 | A kind of test downhole data transmission antenna dielectric device |
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| Publication Number | Publication Date |
|---|---|
| CN208423141U true CN208423141U (en) | 2019-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821051390.5U Active CN208423141U (en) | 2018-07-04 | 2018-07-04 | A kind of test downhole data transmission antenna dielectric device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114776241A (en) * | 2022-05-17 | 2022-07-22 | 中煤科工集团西安研究院有限公司 | Measurement while drilling water feeder with rotary connection device, and wireless and wired rotary connection device |
-
2018
- 2018-07-04 CN CN201821051390.5U patent/CN208423141U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114776241A (en) * | 2022-05-17 | 2022-07-22 | 中煤科工集团西安研究院有限公司 | Measurement while drilling water feeder with rotary connection device, and wireless and wired rotary connection device |
| CN114776241B (en) * | 2022-05-17 | 2023-08-25 | 中煤科工集团西安研究院有限公司 | Measurement while drilling water feeder with turn-through device, wireless and wired turn-through device |
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