CN205577982U - Insulated antenna nipple joint of electromagnetic wave measurement while drilling - Google Patents
Insulated antenna nipple joint of electromagnetic wave measurement while drilling Download PDFInfo
- Publication number
- CN205577982U CN205577982U CN201520955972.6U CN201520955972U CN205577982U CN 205577982 U CN205577982 U CN 205577982U CN 201520955972 U CN201520955972 U CN 201520955972U CN 205577982 U CN205577982 U CN 205577982U
- Authority
- CN
- China
- Prior art keywords
- drilling
- insulated antenna
- pipe nipple
- joint
- antenna pipe
- 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
Links
Landscapes
- Geophysics And Detection Of Objects (AREA)
Abstract
The utility model discloses an insulated antenna nipple joint of electromagnetic wave measurement while drilling, including top and lower part, the upper end of top lower extreme and part down connects gradually reach through matched with threaded male joint and female joint together and all is formed with annular table in its junction and takes on, on the male joint of top lower extreme and lower partial upper end junction and the screw of female joint and all be equipped with insulating bond line on the circular bead face, is equipped with inside and outside insulating layer on the inside and outside face of cylinder of insulated antenna nipple joint respectively, the utility model discloses a structural design, provide one kind can be applied to ground ore deposit trade in the pit the electromagnetic wave along with boring the insulated antenna nipple joint among the measurement system, its simple structure, mechanical strength is big, can bear big pressure, pulling force, moment of torsion, moment of flexure and the impact of probing in -process, the insulation of drilling rod about required position is realized better.
Description
Technical field
This utility model relates to the insulated antenna pipe nipple of a kind of electromagnetic measurement while drilling, is used for transmitting electromagnetic wave signal, belongs to ore deposit, ground well logging field, falls within oil well logging field.
Background technology
In drilling process, down-hole real time information is known more, more can be close to high efficiency, the wellbore target of low cost.For real-time, continuous, monitor and control well track, DHM-MWD instrument must be many, and its performance characteristics depends on the selection of communication channel.
Mud-pulse is current domestic measurement while drilling mode with the most use, and transmission information is by means of positive pulse, negative pulse or the continuous pressure ripple of drilling liquid pressure.Along with the development of well logging during particularly geosteering, need the subsurface information of transmission to get more and more, and mud-pulse metering system has strict requirements to sand content and the air content of drilling fluid, it is difficult to solve effective transmission problem of down-hole information；Needs along with oil gas field production development, underbalance well starts to widely apply, and occurs in that air drilling, but in compressible drilling medium, mud-pulse measures technology cannot normally receive DHM-MWD information, limits the development and application of under-balanced drilling technology.Mud-pulse transmission technology is more come and the needs being difficult to meet intelligent drilling technology.
Electromagnetic wave measurement mode is low to property of drilling fluid and pumpage stability requirement, and the reliability sending information is unrelated with the heterogeneity of drilling fluid.Electromagnetic wave measurement technology develops quickly abroad, and it can be used for other aspects, and for now, it is the maximally effective technology of the one of real-time Transmission downhole data in gas drilling.Its operation principle: measurement data is passed to transmitter by underground survey unit, transmitter by after data code modulation by launch antenna electromagnetic signals to stratum, ground receiving equipment receives electromagnetic wave signal, recovers measurement data, and show in the display after demodulating and decoding.But the domestic current research to electromagnetic measurement while drilling technology is also in the starting stage.
At electromagnetic radiation with propagation, launch antenna and play vital effect.The energy launching sky bundle of lines discharger is converted into the energy of electromagnetic wave, but can only make an issue of along drilling rod on drilling rod with brill electromagnetic wave transmitting antenna owing to the particularity of drilling technology determines.
In drilling well circle, electromagnetic transmission is divided into two kinds of methods, i.e. loop coil coupling and directly coupled method.The method that electromagnetic measurement while drilling system in early days mostly is loop coil coupling, the most this method also has application.There are strict restriction, once coil sizing for the lowest or the highest load impedance, toroidal power level and impedance matching scope, are almost impossible to change the scope of load matched.When relating to Extremely low frequency electronic magnetic fields transmission, best loop coil transporter also cannot mate real load effectively, and when needing to reduce frequency increase power with the increase of drilling depth, this discharger presents contrary characteristic on the contrary.
Directly coupled method can eliminate the disadvantages mentioned above of loop coil even summation method.This antenna, it is generally required to drilling rod is divided into two joints, forms two electrodes, is separated by dielectric in the middle of it, and this structure is commonly referred to as insulated antenna pipe nipple.Owing to this insulated antenna pipe nipple to bear the highest moment of torsion and pressure, require antitorque with tension, comprcssive strength at a relatively high, but its superiority is the most prominent, it is adapted to Extremely low frequency electronic magnetic fields launch requirements, it is not necessary to loop coil is such that it is able to make less diameter etc..These features are most important for drilling engineering, thus insulated antenna pipe nipple.Owing to this insulated antenna pipe nipple to bear the highest moment of torsion and pressure, require that moment of torsion and tension, comprcssive strength are at a relatively high, but its superiority is the most prominent, it is adapted to extremely low frequency electromagnetic radiation requirement, it is not necessary to loop coil is such that it is able to make less diameter etc..These features are most important for drilling engineering, thus the application of insulated antenna pipe nipple is more and more, but there is also many difficulties during design: the most existing insulated antenna pipe nipple mostly connects the size of screw thread by abatement or processes groove on screw thread and reach the function of lower drill insulation, the most greatly abatement connects the intensity of screw thread, insulated antenna pipe nipple should keep good insulating properties, the transmission pressure of the pressure of the drill to be responsible for, so also to have higher mechanical property；The most existing most structure of insulated antenna pipe nipple is complicated, is unfavorable for actual application.Therefore, the insulated antenna pipe nipple of the electromagnetic measurement while drilling inventing a kind of practicality is the effective way solving the transmission of electromagnetic measurement while drilling system wireless.
Utility model content
In order to overcome existing various insulated antenna pipe nipple persistently by under the heavily loaded poor working conditions with impact load, there is the problem that electric insulation lost efficacy, this utility model is designed by structure, provide a kind of insulated antenna pipe nipple that can be applicable in the industry downhole electromagnetic ripple measurement-while-drilling system of ore deposit, ground, its simple in construction, mechanical strength is big, it is possible to bears big pressure, pulling force, moment of torsion, moment of flexure and the impact in drilling process, preferably realizes the insulation of upper and lower drilling rod at desired area.
The utility model discloses the insulated antenna pipe nipple of a kind of electromagnetic measurement while drilling, including upper and bottom section, the upper end of upper part lower end and lower part is by the threaded male joint matched and female joint is connected in turn and is each formed with annular shoulder in its junction, it is equipped with dielectric adhesive layer in the male joint of junction, upper end of upper part lower end and lower part and the screw thread of female joint and on circular bead surface, dielectric adhesive layer includes ceramic insulating layer the most successively, polymeric dielectric layer and adhesive layer, insulated antenna pipe nipple interior, in being respectively equipped with on external cylindrical surface, external insulation layer, inner insulating layer and external insulation layer extend upwardly in distance upper part at the downward 25cm in top and extend downward at distance lower part lower end male joint circular bead surface upwards 20cm.
In the embodiment of the insulated antenna pipe nipple of a kind of electromagnetic measurement while drilling disclosed in this utility model, the male joint of the junction of the upper end of upper part lower end and lower part and the form of thread of female joint are nonstandard form of thread.
In the embodiment of the insulated antenna pipe nipple of a kind of electromagnetic measurement while drilling disclosed in this utility model, upper part upper end is provided with threaded female joint and circular bead surface and is connected with drill collar above or drill string.
In the embodiment of the insulated antenna pipe nipple of a kind of electromagnetic measurement while drilling disclosed in this utility model, lower part lower end is provided with threaded male joint and circular bead surface and is connected with following drill collar or drill string.
In one embodiment of the insulated antenna pipe nipple of a kind of electromagnetic measurement while drilling disclosed in this utility model, the upper end of upper part lower end and lower part is respectively equipped with female joint and male joint.
In another embodiment of the insulated antenna pipe nipple of a kind of electromagnetic measurement while drilling disclosed in this utility model, the upper end of upper part lower end and lower part is respectively equipped with male joint and female joint.
Beneficial effect
This utility model is threaded by upper and lower part, the inside and outside insulating barrier that is provided with of pipe nipple, and is coated with high-strength insulating adhesive layer on the screw thread that upper and lower part connects, and makes upper and lower two parts be bonded together by screw thread；Owing to screw thread is provided with dielectric adhesive layer so that the upper and lower two-part drill collar of this utility model forms insulation, effectively the drill collar being connected to this utility model position upper and lower end is divided into upper and lower two-stage and has enough mechanical strengths and insulation effect.
It is equipped with dielectric adhesive layer in the male joint of junction, upper end of this utility model upper part lower end and lower part and the screw thread of female joint and on circular bead surface, when insulation layer fails in the male joint of upper part lower end or the screw thread of female joint and on circular bead surface, insulating barrier can guarantee that electric insulating quality of the present utility model in the male joint of the upper end of lower part or the screw thread of female joint and on circular bead surface, guarantee that antenna normally works, strengthen the insulating properties of insulated antenna pipe nipple.A kind of guarantee that electrical insulation properties of the present utility model is more than common insulating short section, substantially increases insulation effect and the service life of insulating short section.
This utility model can be applicable to ore deposit, ground industry downhole electromagnetic ripple measurement while drilling, simple in construction.Mechanical strength is big, insulating properties are more preferable, and is simple to manufacture, it is simple to produce in batches in factory, and its transport and assembling are the simplest.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of the insulated antenna pipe nipple of a kind of electromagnetic measurement while drilling disclosed in this utility model, and in figure, the right is structural perspective；
Fig. 2 is the structural representation of another embodiment of the insulated antenna pipe nipple of a kind of electromagnetic measurement while drilling disclosed in this utility model, and in figure, the right is structural perspective.
Detailed description of the invention
For content of the present utility model, feature and effect can be further appreciated that, hereby enumerate following example, and it be as follows to coordinate accompanying drawing to describe in detail:
nullFig. 1 is the structural representation of the insulated antenna pipe nipple of a kind of electromagnetic measurement while drilling disclosed in this utility model，In figure, the right is structural perspective，As shown in FIG.，The utility model discloses the insulated antenna pipe nipple of a kind of electromagnetic measurement while drilling，A kind of insulated antenna pipe nipple of electromagnetic measurement while drilling，Including upper part 01 and lower part 02，The upper end of upper part 01 lower end and lower part 02 is connected in turn by threaded male joint 03 and the female joint 04 matched and is each formed with annular shoulder 05 in its junction，In the male joint 03 of the junction, upper end of upper part 01 lower end and lower part 02 and the screw thread of female joint 04 and on circular bead surface 05, first part carries out differential arc oxidation after aluminizing，Its surface is made to have ceramic insulating layer，On this basis insulating polymeric material is moulded in its leaching，It is coated strong adhesive the most on the insulating layer，Ultimately form two insulating barriers，Improve insulated antenna pipe nipple withstand shocks the ability with pressure and insulate abrasive resistance，So it is equipped with dielectric adhesive layer 06 on the male joint 03 of the junction, upper end of upper part 01 lower end and lower part 02 and the screw thread of female joint 04 and on circular bead surface 05，Dielectric adhesive layer 06 includes ceramic insulating layer the most successively、Polymeric dielectric layer and adhesive layer，Insulated antenna pipe nipple interior、In being respectively equipped with on external cylindrical surface、External insulation layer 07 and 08，Inner insulating layer 07 and external insulation layer 08 extend upwardly in distance upper part 01 at the downward 25cm in top and extend downward at distance lower part 02 lower end male joint 03 circular bead surface 05 upwards 20cm.
In the embodiment of the insulated antenna pipe nipple of a kind of electromagnetic measurement while drilling disclosed in this utility model, the male joint 03 of the junction of the upper end of upper part 01 lower end and lower part 02 and the form of thread of female joint 04 are nonstandard form of thread.
In the embodiment of the insulated antenna pipe nipple of a kind of electromagnetic measurement while drilling disclosed in this utility model, upper part 01 upper end is provided with threaded female joint 04 and circular bead surface 05 and is connected with drill collar above or drill string.
In the embodiment of the insulated antenna pipe nipple of a kind of electromagnetic measurement while drilling disclosed in this utility model, lower part 02 lower end is provided with threaded male joint 03 and circular bead surface 05 and is connected with following drill collar or drill string.
As it is shown in figure 1, in an embodiment of the insulated antenna pipe nipple of a kind of electromagnetic measurement while drilling disclosed in this utility model, the upper end of upper part 01 lower end and lower part 02 is respectively equipped with female joint 04 and male joint 03.
Fig. 2 is the structural representation of another embodiment of the insulated antenna pipe nipple of a kind of electromagnetic measurement while drilling disclosed in this utility model, in figure, the right is structural perspective, as shown in Figure 2, in the embodiment of the insulated antenna pipe nipple of another kind of electromagnetic measurement while drilling disclosed in this utility model, the upper end of upper part 01 lower end and lower part 02 can also be respectively equipped with male joint 03 and female joint 05.
It is last that it is noted that obviously above-described embodiment is only for clearly demonstrating this utility model example, and not restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also cannot all of embodiment be given exhaustive.And the obvious change thus amplified out or variation still in this protection domain illustrated among.
Claims (6)
- null1. the insulated antenna pipe nipple of an electromagnetic measurement while drilling，It is characterized in that: described insulated antenna pipe nipple includes upper and bottom section，The upper end of described upper part lower end and described lower part is by the threaded male joint matched and female joint is connected in turn and is each formed with annular shoulder in its junction，It is equipped with dielectric adhesive layer on described upper part lower end and the male joint of junction, upper end of described lower part and the screw thread of female joint and on circular bead surface，Described dielectric adhesive layer includes ceramic insulating layer the most successively、Polymeric dielectric layer and adhesive layer，Described insulated antenna pipe nipple interior、In being respectively equipped with on external cylindrical surface、External insulation layer，Described inner insulating layer and external insulation layer extend upwardly in distance upper part at the downward 25cm in top and extend downward at distance lower part lower end male joint circular bead surface upwards 20cm.
- A kind of insulated antenna pipe nipple of electromagnetic measurement while drilling, it is characterised in that: the male joint of junction and the form of thread of female joint of the upper end of described upper part lower end and described lower part are nonstandard form of thread.
- A kind of insulated antenna pipe nipple of electromagnetic measurement while drilling, it is characterised in that: described upper part upper end is provided with threaded female joint and circular bead surface and is connected with drill collar above or drill string.
- A kind of insulated antenna pipe nipple of electromagnetic measurement while drilling, it is characterised in that: described lower part lower end is provided with threaded male joint and circular bead surface and is connected with following drill collar or drill string.
- A kind of insulated antenna pipe nipple of electromagnetic measurement while drilling, it is characterised in that: the upper end of described upper part lower end and described lower part is respectively equipped with female joint and male joint.
- A kind of insulated antenna pipe nipple of electromagnetic measurement while drilling, it is characterised in that: the upper end of described upper part lower end and described lower part is respectively equipped with male joint and female joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520955972.6U CN205577982U (en) | 2015-11-27 | 2015-11-27 | Insulated antenna nipple joint of electromagnetic wave measurement while drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520955972.6U CN205577982U (en) | 2015-11-27 | 2015-11-27 | Insulated antenna nipple joint of electromagnetic wave measurement while drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205577982U true CN205577982U (en) | 2016-09-14 |
Family
ID=56881611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520955972.6U Expired - Fee Related CN205577982U (en) | 2015-11-27 | 2015-11-27 | Insulated antenna nipple joint of electromagnetic wave measurement while drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205577982U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109802718A (en) * | 2017-11-14 | 2019-05-24 | 中国石油化工股份有限公司 | Electromagnetic measurement while drilling repeater and electromagnetic measurement while drilling system |
| CN110566192A (en) * | 2019-10-20 | 2019-12-13 | 达坦能源科技（上海）有限公司 | insulating short joint for electromagnetic wave measurement while drilling system |
-
2015
- 2015-11-27 CN CN201520955972.6U patent/CN205577982U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109802718A (en) * | 2017-11-14 | 2019-05-24 | 中国石油化工股份有限公司 | Electromagnetic measurement while drilling repeater and electromagnetic measurement while drilling system |
| CN109802718B (en) * | 2017-11-14 | 2021-03-23 | 中国石油化工股份有限公司 | Electromagnetic measurement-while-drilling repeater and electromagnetic measurement-while-drilling system |
| CN110566192A (en) * | 2019-10-20 | 2019-12-13 | 达坦能源科技（上海）有限公司 | insulating short joint for electromagnetic wave measurement while drilling system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10428646B2 (en) | Apparatus for downhole near-bit wireless transmission | |
| US9970288B2 (en) | Receiving apparatus for downhole near-bit wireless transmission | |
| CN100501121C (en) | Extra-low frequency or ultra-low frequency electromagnetic wave two-ways remote controlling sensing system while-drilling | |
| CN106285648B (en) | The signal transmit-receive method of ground installation and the signal transmit-receive method of underground equipment | |
| CN101545374B (en) | Relay Transmission Measurement While Drilling System | |
| CN102767363B (en) | Electric communication drill rod and method for increasing transmission distance of electromagnetic wave measurement while drilling signal | |
| CN205577982U (en) | Insulated antenna nipple joint of electromagnetic wave measurement while drilling | |
| CN105464646B (en) | A kind of communication device and method of underground geologic parameter | |
| CN113006777A (en) | Marine bidirectional electromagnetic measurement-while-drilling signal downloading device and method | |
| CN106297223A (en) | Ground signal R-T unit, underground signal R-T unit and data transmission system | |
| CN103573259B (en) | A kind of dipole antenna pipe nipple of electromagnetic measurement while drilling system | |
| CN201045282Y (en) | Petroleum drill pipe joint capable of transmitting electric power and signal | |
| CN201386571Y (en) | Relay transmission signal while drilling transmitting and receiving device | |
| CN103498667B (en) | A kind of for there being the downhole parameters transmission system of bar producing well | |
| CN114622900A (en) | Underground information transmission device and method based on micro-current | |
| CN201233961Y (en) | Insulation dipole wireless transmission antenna in conjunction with drill | |
| CN205370561U (en) | Reinforced insulation antenna nipple joint of electromagnetic wave measurement while drilling | |
| CN105673000A (en) | Wireless control system used for deblocking of downhole drill pipe blowout preventer | |
| CN111827985A (en) | Near-bit while-drilling device | |
| US20240026781A1 (en) | Wireless telemetry system for horizontal directional drilling | |
| CN115680632B (en) | Underground micro-current signal wireless uploading method and device | |
| CN201018002Y (en) | Electromagnetic wave while-drilling wireless transmission down-hole antenna | |
| CN206299374U (en) | A kind of reception device suitable for the underground wireless short pass of nearly drill bit | |
| CN109996929A (en) | For carrying out untethered bidirectional data transfers in the well for extracting formation fluid and stablizing the pipe that fluid continuously recycles and the tubing string including at least one of pipe pipe | |
| CN104863573B (en) | A kind of insulating short section and preparation method thereof |
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: 20160914 Termination date: 20181127 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |