JPH0351878B2 - - Google Patents
Info
- Publication number
- JPH0351878B2 JPH0351878B2 JP61099404A JP9940486A JPH0351878B2 JP H0351878 B2 JPH0351878 B2 JP H0351878B2 JP 61099404 A JP61099404 A JP 61099404A JP 9940486 A JP9940486 A JP 9940486A JP H0351878 B2 JPH0351878 B2 JP H0351878B2
- Authority
- JP
- Japan
- Prior art keywords
- electromagnetic coil
- magnetic field
- pipe
- data
- measuring device
- 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 - Lifetime
Links
- 230000005291 magnetic effect Effects 0.000 claims description 22
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000009412 basement excavation Methods 0.000 claims description 5
- 238000005259 measurement Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 description 8
- 238000005553 drilling Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000003302 ferromagnetic material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Landscapes
- Near-Field Transmission Systems (AREA)
Description
【発明の詳細な説明】
〔産業上の技術分野〕
本発明は掘削機におけるデータ伝送装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Industrial Technical Field] The present invention relates to a data transmission device in an excavator.
石油掘削時のドリルパイプ先端の温度、方位、
傾斜、土質等の計測情報を地上へ伝送する手段と
して有線方式、マツドパルス方式及び電磁波方式
の３種類がある。そのうち実用化されているのは
前２者であるが、後者の実用化研究も進んでい
る。有線方式は計器をパイプ中に昇降させるため
不経済であるが、後２者は無接触でデータ送信で
きるので、MWD（Measurments While
Drilling）の手段として有効である。
Temperature and orientation of drill pipe tip during oil drilling
There are three types of means for transmitting measurement information such as slope and soil quality to the ground: a wired method, a mud pulse method, and an electromagnetic wave method. Of these, the first two have been put into practical use, but research on the latter is also progressing. The wired method is uneconomical because it requires the instrument to be moved up and down the pipe, but the latter two methods can transmit data without contact, making MWD (Measurements While
Drilling).
しかし、双方ともデータレート（単位時間当た
りの送信データ数）が少ないこと、信頼性向上が
難しいことなどの問題もある。 However, both methods have problems such as a low data rate (number of data transmitted per unit time) and difficulty in improving reliability.
本発明は、データレートの向上、および信頼性
の向上を図ることを目的とするものである。
The present invention aims to improve data rate and reliability.
本発明の掘削機におけるデータ伝送装置は、掘
削用パイプの先端部近傍に計測器を配設し、該計
測器で計測した計測データを地上の施設に伝送す
るようにした掘削機におけるデータ伝送装置にお
いて、前記掘削用パイプを磁界伝達可能な部材に
より形成し、該掘削用パイプの先端部近傍に磁界
発生用の電磁コイルを配設すると共に、掘削用パ
イプの後端部近傍に前記電磁コイルで発生させた
磁界を感知する磁気センサーを配設し、かつ前記
電磁コイルに供給する電流を前記計測器で計測し
た計測値のデータ信号に対応して制御するように
したことを特徴とするものである。
A data transmission device for an excavator according to the present invention is a data transmission device for an excavator in which a measuring device is disposed near the tip of an excavating pipe, and measurement data measured by the measuring device is transmitted to a facility on the ground. In this method, the excavation pipe is formed of a member capable of transmitting a magnetic field, and an electromagnetic coil for generating a magnetic field is disposed near the tip of the excavation pipe, and the electromagnetic coil is disposed near the rear end of the excavation pipe. A magnetic sensor is provided to sense the generated magnetic field, and the current supplied to the electromagnetic coil is controlled in response to a data signal of a measurement value measured by the measuring device. be.
以下、図面により本発明の実施例について説明
する。
Embodiments of the present invention will be described below with reference to the drawings.
第１図は本発明の１実施例を示す概略図であ
り、鉄等の強磁性体から構成されたドリルパイプ
２は、その先端に取付けたピツト３によつて岩盤
１中を掘進する。掘進中のドリルパイプ２は、そ
の先端部近傍に計器部４を設け、この計器部４に
よつて得られた傾斜方位、傾斜角、温度および圧
力などのデータを地上の施設に伝送し、コンピユ
ータによつて処理している。 FIG. 1 is a schematic diagram showing one embodiment of the present invention, in which a drill pipe 2 made of a ferromagnetic material such as iron drills into a rock 1 by means of a pit 3 attached to its tip. The drill pipe 2 that is being drilled has an instrument section 4 near its tip, and the instrument section 4 transmits data such as tilt direction, angle of inclination, temperature, and pressure to facilities on the ground, and the data is sent to a computer. It is processed by
本発明は前記諸データの伝送に磁力線を利用す
るものであり、上記計測器４の上端部に電磁コイ
ル５を設置する。一方、ドリルパイプ２の後端部
に電磁コイル型、または他の方式の磁気センサー
６を設ける。 The present invention utilizes magnetic lines of force to transmit the various data, and an electromagnetic coil 5 is installed at the upper end of the measuring instrument 4. On the other hand, an electromagnetic coil type or other type magnetic sensor 6 is provided at the rear end of the drill pipe 2.
さて、上記電磁コイル５に図示しない電源から
電流を供給すると、前記電磁コイル５により磁界
が発生し、強磁性体であるドリルパイプ２全体が
磁化される。これによりドリルパイプ２の後端部
付近の磁界に変化が与えられる。そして、ドリル
パイプ２の後端部、またはその近傍に設置した磁
気センサー６により磁界の変化が検出される。従
つて、電磁コイル５に供給する電流に信号に対応
する変化を与えると、ドリルパイプ２の磁化の変
化として信号を伝送でき、その磁界の変化はドリ
ルパイプ２後端部の磁気センサー６により検出さ
れる。 Now, when a current is supplied to the electromagnetic coil 5 from a power source (not shown), a magnetic field is generated by the electromagnetic coil 5, and the entire drill pipe 2, which is a ferromagnetic material, is magnetized. This gives a change to the magnetic field near the rear end of the drill pipe 2. Changes in the magnetic field are detected by the magnetic sensor 6 installed at or near the rear end of the drill pipe 2. Therefore, when a change corresponding to the signal is given to the current supplied to the electromagnetic coil 5, the signal can be transmitted as a change in the magnetization of the drill pipe 2, and the change in the magnetic field is detected by the magnetic sensor 6 at the rear end of the drill pipe 2. be done.
従つて、本発明方式によれば、データレートも
従来方式に比べて３桁位向上するようになり、ま
た、信頼性も向上するようになる。 Therefore, according to the method of the present invention, the data rate is improved by three orders of magnitude compared to the conventional method, and the reliability is also improved.
なお、所望により、第２図に示すように、ドリ
ルパイプ２の外側に電磁コイル５を配設させても
よい。７はカバーである。 Incidentally, if desired, as shown in FIG. 2, an electromagnetic coil 5 may be disposed outside the drill pipe 2. 7 is a cover.
上記のように、本発明は、掘削用パイプの先端
部近傍に計測器を配設し、該計測器で計測した計
測データを地上の施設に伝送するようにした掘削
機におけるデータ伝送装置において、前記掘削用
パイプを磁界伝達可能な部材により形成し、該掘
削用パイプの先端部近傍に磁界発生用の電磁コイ
ルを配設すると共に、掘削用パイプの後端部近傍
に前記電磁コイルで発生させた磁界を感知する磁
気センサーを配設し、かつ前記電磁コイルに供給
する電流を前記計測器で計測した計測値のデータ
信号に対応して制御するようにしたので、データ
レートが従来方式に比べて著しく向上し、また、
信頼性も一段と向上するようになる。
As described above, the present invention provides a data transmission device for an excavator in which a measuring device is disposed near the tip of an excavating pipe and data measured by the measuring device is transmitted to an above-ground facility. The drilling pipe is formed of a member capable of transmitting a magnetic field, and an electromagnetic coil for generating a magnetic field is disposed near the tip of the drilling pipe, and the electromagnetic coil generates a magnetic field near the rear end of the drilling pipe. A magnetic sensor that senses the magnetic field is installed, and the current supplied to the electromagnetic coil is controlled in accordance with the data signal of the measured value measured by the measuring device, so the data rate is lower than that of the conventional method. significantly improved, and
Reliability will also be further improved.
第１図は本発明の１実施例を示す概略図、第２
図は他の実施例を示す概略図である。
１……岩盤、２……ドリルパイプ、３……ビツ
ト、４……計測器、５……電磁コイル、６……磁
気センサー。
FIG. 1 is a schematic diagram showing one embodiment of the present invention, and FIG.
The figure is a schematic diagram showing another embodiment. 1... Bedrock, 2... Drill pipe, 3... Bit, 4... Measuring instrument, 5... Electromagnetic coil, 6... Magnetic sensor.
Claims (1)
し、該計測器で計測した計測データを地上の施設
に伝送するようにした掘削機におけるデータ伝送
装置において、前記掘削用パイプを磁界伝達可能
な部材により形成し、該掘削用パイプの先端部近
傍に磁界発生用の電磁コイルを配設すると共に、
掘削用パイプの後端部近傍に前記電磁コイルで発
生させた磁界を感知する磁気センサーを配設し、
かつ前記電磁コイルに供給する電流を前記計測器
で計測した計測値のデータ信号に対応して制御す
るようにした掘削機におけるデータ伝送装置。1. A data transmission device for an excavator in which a measuring device is disposed near the tip of an excavating pipe and data measured by the measuring device is transmitted to an above-ground facility, wherein the excavating pipe is capable of transmitting a magnetic field. an electromagnetic coil for generating a magnetic field is arranged near the tip of the excavation pipe, and
A magnetic sensor that detects the magnetic field generated by the electromagnetic coil is arranged near the rear end of the excavation pipe,
and a data transmission device for an excavator, wherein a current supplied to the electromagnetic coil is controlled in response to a data signal of a measurement value measured by the measuring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61099404A JPS62258091A (en) | 1986-05-01 | 1986-05-01 | Data transmitter in drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61099404A JPS62258091A (en) | 1986-05-01 | 1986-05-01 | Data transmitter in drilling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62258091A JPS62258091A (en) | 1987-11-10 |
| JPH0351878B2 true JPH0351878B2 (en) | 1991-08-08 |
Family
ID=14246550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61099404A Granted JPS62258091A (en) | 1986-05-01 | 1986-05-01 | Data transmitter in drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62258091A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2873983B2 (en) * | 1991-11-22 | 1999-03-24 | 株式会社レイディック | Underground information collection method using steel rods |
| JPH0788749B2 (en) * | 1993-03-12 | 1995-09-27 | 石油公団 | Logging device |
-
1986
- 1986-05-01 JP JP61099404A patent/JPS62258091A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62258091A (en) | 1987-11-10 |
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