CN201233961Y - Insulation dipole wireless transmission antenna in conjunction with drill - Google Patents
Insulation dipole wireless transmission antenna in conjunction with drill Download PDFInfo
- Publication number
- CN201233961Y CN201233961Y CNU2008201086461U CN200820108646U CN201233961Y CN 201233961 Y CN201233961 Y CN 201233961Y CN U2008201086461 U CNU2008201086461 U CN U2008201086461U CN 200820108646 U CN200820108646 U CN 200820108646U CN 201233961 Y CN201233961 Y CN 201233961Y
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- CN
- China
- Prior art keywords
- drill collar
- dipole
- insulation
- wireless transmission
- transmission antenna
- 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.)
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Abstract
The utility model relates to a wireless transmitting antenna device for an insulating dipole while drilling. The wireless transmitting antenna device comprises a drill collar type insulating dipole, a general upper drill collar and a general lower drill collar, wherein the drill collar type insulating dipole is connected with the upper drill collar and the lower drill collar, the upper drill collar is used as an electrode of the drill collar type insulating dipole, and the lower drill collar is used as the other electrode of the drill collar type insulating dipole; through the structure, a complete down-hole electromagnetic transmission channel is formed. The wireless transmitting antenna device can provide ground receiving for measurement while drilling and wireless measurement of underground prospecting; the current field receiving antenna is easy to process, the structure is simple, and the sensitivity of the receiving signal is high.
Description
Technical field
The utility model relates to the borehole instruments equipment of oil measurement while drilling, and is particularly a kind of with boring insulation dipole wireless transmission antenna.
Background technology
In the current petroleum drilling engineering, generally the transducer of orientation sensor and collection geological information is installed in the position of close drill bit.In the drilling process of drill bit, described in Chinese patent application 200410005527.X, sensor acquisition to data send signal projector (transmitting coil) to and also claim emission electrode, on drill string, induce the carrier frequency curtage by transmitting coil, utilize drill string and closed-loop path that the stratum constituted to be transferred to ground receiving wastewater facility again.
But the induction antenna of prior art can not be set up transmission channel with drilling rod under with the condition of boring, and emission effciency is low.
Summary of the invention
The purpose of this utility model just provides a kind of with boring insulation dipole wireless transmission antenna, can not set up transmission channel and the low defective of emission effciency with drilling rod under with the condition of boring to overcome above-mentioned existing induction antenna.
For achieving the above object, it is a kind of with boring insulation dipole wireless transmission antenna assembly that the utility model provides, comprise on the insulation drill collar formula dipole, a drill collar and drill collar once, insulation drill collar formula dipole connects goes up drill collar and following drill collar, last drill collar is as an electrode of insulation drill collar formula dipole, and following drill collar is as another electrode of insulation drill collar formula dipole.
Insulation drill collar formula dipole comprises at least two insulating short sections and two general drill collars, and at least two insulating short sections link by the spiral shell that is coated with oxide-film and connect, and the two ends of at least two insulating short sections that couple together connect general drill collar respectively.
Also comprise the end face that at least two insulating short sections of covering are in contact with one another and the polyimide coating of spiral shell button.
The steel pottery that also comprises the seam crossing of the interior outside of at least two insulating short sections of covering and general drill collar.
General drill collar is six cun six drill collar, and the spiral shell button is the API standard
Interior flat button.
Last drill collar links to each other with drill string, and following drill collar links to each other with drill bit.
Insulating short section is to make with titanium alloy material.
Existing down-hole transmitting antenna all belongs to induction, and the through-put power of induction antenna is
In the formula
The power that P-antenna sends
U
0---the voltage at dipole antenna two ends
U---signal source voltage
N
0---electric wire induction type antenna time sideline circle, here time sideline circle is exactly a drilling rod, is equivalent to a circle coil
N---primary coil, N are the integers greater than
R---formation resistivity
So
P＝(U
2/N
2)/R
And antenna transmission power of the present utility model is: P
1=U
2/ R.Compare two antenna transmission power: P
1/ P=N
21, the antenna transmission power of visible the utility model patent is greater than the antenna transmission power of two patents of invention.
The purpose of this utility model has overcome the deficiencies in the prior art exactly, as: the shortcoming that has overcome the real-time difference of shooting style; Overcome the shortcoming that wired mode frequently makes a trip, improved fail safe and rate of penetration; Overcome the shortcoming that mud-pulse can not be used for aspects such as gas drilling.
Can be simultaneously for the wireless measurement of measurement while drilling and down-hole exploration provides ground to receive, this current field reception antenna is easy to processing, and is simple in structure, the receiving signal sensitivity height.
Description of drawings
Fig. 1 is with the fundamental diagram that bores insulation dipole wireless transmission antenna according to of the present utility model.
Fig. 2 is with the structure chart that bores insulation dipole wireless transmission antenna according to of the present utility model.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clear more understandable,, the utility model is described in further details below in conjunction with accompanying drawing.At this, illustrative examples of the present utility model and explanation thereof are used to explain the present invention, but not as to qualification of the present utility model.
Please refer to Fig. 1, Fig. 1 is with the fundamental diagram that bores insulation dipole wireless transmission antenna according to of the present utility model.Insulation drill collar formula dipole 1 connects goes up drill collar 2 and following drill collar 3, last drill collar 2 and connected drill string are as an electrode, following drill collar 3 and connected drill bit are another electrode, drill string in the down-hole just forms a Hertz doublet antenna like this, this dipole antenna can be set up the channel of transmission downhole data under the condition with brill.The operation principle of this downhole transmitted channel is: become voltage signal to be applied on the two poles of the earth of dipole antenna 2 the data-modulated of downhole sensor collection, 3, the two poles of the earth constitute conductive loop by drill string 6 and drill bit 7 with stratum 4, the signal voltage that is applied on dipole the two poles of the earth produces signal code in the loop, signal code is upwards propagated along drill string, simultaneously electric current of upwards propagating along drill string and the electric current that enters the stratum also give off electromagnetic wave, detect electric current of upwards propagating through drill string and the electromagnetic wave that gives off on ground by checkout gear 5, obtain the data that the down-hole sensing is gathered with the method.
Please refer to Fig. 2, Fig. 2 is with the structure chart that bores insulation dipole wireless transmission antenna according to of the present utility model.Insulation drill collar formula dipole 1 comprises at least two insulating short sections 8,9, and insulating short section the 8, the 9th, make with titanium alloy material, two insulating short section 8,9 employing API standards
Interior flat button.On spiral shell button joint face, generate the oxide layer that a layer thickness is 0.03---0.1mm, just formed the insulating tape that makes Hertz dipole two electrode insulations after connecing when two such insulating short sections 8,9 link by the spiral shell that is coated with oxide-film with electrochemical method.In order to guarantee the insulating properties between two insulating short sections, use polyimides 12 to tip the end face and the spiral shell that are in contact with one another between them in capable coating, the insulating material polyimides has Heat stability is good, mechanical performance height, the excellent characteristics of elastic performance, has satisfied the requirement of down-hole bad working environments.
The titanium alloy pipe nipple that is surrounded by coated film at first toasted 3-4 hour in 60-80 ℃ baking oven, then temperature was transferred to 140-160 ℃ of baking 4-6 hour, to guarantee the curing of polyimide coating and titanium alloy pipe nipple.After these two titanium alloy pipe nipples connect, be connected, cover the seam crossing of joint again with steel pottery 13, with the insulating oxide of protection insulating joint at seam crossing with two general drill collars 10,11.At last, even again brushing steel pottery 13 has so just formed the Hertz dipole that is used for DHM-MWD inside and outside insulating short section 8,9.Just constituted the Hertz dipole transmitting antenna if be connected, also just set up the electromagnetic signal channel that downhole data is uploaded with last drill collar 10, drill string 6 and with following drill collar 11, drill bit 7.
Content of the present utility model is, in six cun six (Φ 171.45mm) drill collar, a kind of insulation dipole wireless electromagnetic transmitting antenna that is used for measurement while drilling is provided, it can be widely used in various media is to carry out measurement while drilling in the special well (stepping on as directed drilling, horizontal drilling, under balance pressure drilling) of drilling fluid or the conventional drilling, make in drilling engineering, wellbore trace requires to creep into according to engineering design more accurately, and grasp formation information more timely and accurately, simultaneously measurement data is transferred to ground in real time, exactly.
Above-described specific descriptions; purpose, technical scheme and beneficial effect to invention further describe; institute is understood that; the above only is a specific embodiment of the utility model; and be not used in and limit protection range of the present utility model; within the spirit and principles in the present invention all, any modification of being made, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (7)
1, a kind of with boring insulation dipole wireless transmission antenna assembly, it is characterized in that: this antenna assembly comprises on the insulation drill collar formula dipole, a drill collar and drill collar once at least, described insulation drill collar formula dipole connects described drill collar and the described drill collar down gone up, a described electrode of going up drill collar as described insulation drill collar formula dipole, described drill collar down is as another electrode of described insulation drill collar formula dipole.
2, according to claim 1 with boring insulation dipole wireless transmission antenna assembly, it is characterized in that: described insulation drill collar formula dipole comprises at least two insulating short sections, described at least two insulating short sections link by the spiral shell that is coated with oxide-film and connect, and the two ends of described at least two insulating short sections that couple together connect general drill collar up and down respectively.
3, according to claim 2 with boring insulation dipole wireless transmission antenna assembly, it is characterized in that: also comprise covering the end face that described at least two insulating short sections are in contact with one another and the polyimide coating of spiral shell button.
4, according to claim 2 with boring insulation dipole wireless transmission antenna assembly, it is characterized in that: also comprise outside covering in described at least two insulating short sections and the steel pottery of described drill collar spiral shell button seam crossing.
5, according to claim 2 with boring insulation dipole wireless transmission antenna assembly, it is characterized in that: described spiral shell button is the API standard
Interior flat button, described general drill collar is six cun six drill collar of standard.
6, according to claim 1 it is characterized in that: the described drill collar of going up links to each other with drill string with boring insulation dipole wireless transmission antenna assembly, and described drill collar down links to each other with drill bit.
7, according to claim 2 with boring insulation dipole wireless transmission antenna assembly, it is characterized in that: described insulating short section is to make with titanium alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201086461U CN201233961Y (en) | 2008-06-04 | 2008-06-04 | Insulation dipole wireless transmission antenna in conjunction with drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201086461U CN201233961Y (en) | 2008-06-04 | 2008-06-04 | Insulation dipole wireless transmission antenna in conjunction with drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201233961Y true CN201233961Y (en) | 2009-05-06 |
Family
ID=40620350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201086461U Expired - Fee Related CN201233961Y (en) | 2008-06-04 | 2008-06-04 | Insulation dipole wireless transmission antenna in conjunction with drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201233961Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101976758A (en) * | 2010-08-11 | 2011-02-16 | 大庆石油管理局 | Electromagnetic wave transmitting antenna |
| CN103696755A (en) * | 2013-07-18 | 2014-04-02 | 西北工业大学 | Insulation pup joint used for electromagnetic wireless measurement while drilling and manufacturing method for insulation pup joint |
| CN103835705A (en) * | 2012-11-20 | 2014-06-04 | 中国石油天然气集团公司 | Underground measurement information transmission system |
| CN106223937A (en) * | 2016-08-31 | 2016-12-14 | 中国科学院地质与地球物理研究所 | A kind of reception device being applicable to the down-hole wireless short pass of nearly drill bit |
| CN112983404A (en) * | 2021-03-26 | 2021-06-18 | 北京吉星恒大能源科技有限公司 | Double-insulation near-bit wireless transmission receiving system |
-
2008
- 2008-06-04 CN CNU2008201086461U patent/CN201233961Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101976758A (en) * | 2010-08-11 | 2011-02-16 | 大庆石油管理局 | Electromagnetic wave transmitting antenna |
| CN103835705A (en) * | 2012-11-20 | 2014-06-04 | 中国石油天然气集团公司 | Underground measurement information transmission system |
| CN103696755A (en) * | 2013-07-18 | 2014-04-02 | 西北工业大学 | Insulation pup joint used for electromagnetic wireless measurement while drilling and manufacturing method for insulation pup joint |
| CN103696755B (en) * | 2013-07-18 | 2017-05-24 | 西北工业大学 | Insulation pup joint used for electromagnetic wireless measurement while drilling and manufacturing method for insulation pup joint |
| CN106223937A (en) * | 2016-08-31 | 2016-12-14 | 中国科学院地质与地球物理研究所 | A kind of reception device being applicable to the down-hole wireless short pass of nearly drill bit |
| CN112983404A (en) * | 2021-03-26 | 2021-06-18 | 北京吉星恒大能源科技有限公司 | Double-insulation near-bit wireless transmission receiving system |
| CN112983404B (en) * | 2021-03-26 | 2024-04-02 | 北京吉星恒大能源科技有限公司 | Double-insulation near-bit wireless transmission and reception system |
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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: 20090506 Termination date: 20130604 |