JPH0347442B2 - - Google Patents
Info
- Publication number
- JPH0347442B2 JPH0347442B2 JP58051635A JP5163583A JPH0347442B2 JP H0347442 B2 JPH0347442 B2 JP H0347442B2 JP 58051635 A JP58051635 A JP 58051635A JP 5163583 A JP5163583 A JP 5163583A JP H0347442 B2 JPH0347442 B2 JP H0347442B2
- Authority
- JP
- Japan
- Prior art keywords
- submarine
- superstructure
- seabed
- depth
- sounder
- 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
- 238000001514 detection method Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 description 15
- 238000010586 diagram Methods 0.000 description 6
- 241000251468 Actinopterygii Species 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は海底設置構造物の位置検出制御方法に
関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a position detection and control method for a structure installed on the seabed.
一般に、海底石油の生産を行う場合には、海底
石油掘削箇所に海底設置構造物を設置した後、こ
の海底設置構造物に対して洋上から各種の上部構
造物を接続する作業が行われる。従来、この海底
設置構造物の位置を洋上から検出する場合には、
主としてトランスポンダが使用されていた。
Generally, when producing offshore oil, a submarine installation structure is installed at an offshore oil drilling location, and then various superstructures are connected to the submarine installation structure from the ocean. Conventionally, when detecting the position of this submarine-installed structure from the ocean,
Transponders were mainly used.
しかし、トランスポンダは送波器と受波器との
双方が必要であり、海底設置構造物には、予め、
数個の送波器をセツトしておく必要があつた。ま
た、送波器には、電池、その他の電源が必要であ
つた。また、帰つてくる音響を複数個の受波器で
検出し、その位置の違いによる到達時間差によつ
て位置を検知する高級、かつ高価な計器である。
それにもかかわらずトランスポンダは深度が増加
すると、その位置検出誤差に変動があり、高精度
の位置検出ができないという問題があつた。 However, a transponder requires both a transmitter and a receiver, and it is necessary to install a transponder in advance in a structure installed on the seabed.
It was necessary to set up several transmitters. Additionally, the transmitter required batteries and other power sources. It is also a high-grade and expensive instrument that detects the returning sound using multiple receivers and detects the position based on the arrival time difference due to the difference in the position.
Nevertheless, as the depth of the transponder increases, its position detection error fluctuates, making it impossible to perform highly accurate position detection.
また、水中テレビを用いて海底設置構造物の位
置検出を行う場合には、その周囲の環境に左右さ
れるなどの問題があつた。 Furthermore, when using an underwater television to detect the position of a structure installed on the seabed, there are problems such as being affected by the surrounding environment.
一方、第１−Ａ図に示すように、測深器１は海
底２の高度差を利用するものであり、測深器１か
らある角度範囲θで発信された音響が帰つてくる
時間差別の音響強度を第１−Ｂ図のように、デイ
スプレイ面に表示するものである。従つて、第１
−Ａ図に示すように、ある角度範囲θに対応する
水深h1での音響到達範囲ａに比例する反射強さが
第１−Ｂ図で『ａ』のように表示され、水深h2で
の音響到達範囲ｂに比例する反射強さが第１−Ｂ
図で『ｂ』のように表示されるようになつてい
る。 On the other hand, as shown in Figure 1-A, the sounder 1 utilizes the height difference of the seabed 2, and the sound transmitted from the sounder 1 in a certain angular range θ returns with time-differentiated sound intensity. is displayed on the display surface as shown in Figure 1-B. Therefore, the first
As shown in Figure 1-A, the reflection strength proportional to the acoustic range a at water depth h 1 corresponding to a certain angle range θ is displayed as "a" in Figure 1-B, and at water depth h 2 The reflection strength proportional to the acoustic reach b is 1-B
It is now displayed as ``b'' in the figure.
この測深器１は角度範囲θが狭い程、その精度
が良く、例えば、魚群Ｆと海底２とを区別する魚
群探知器としても広く使用されている（第１−Ｃ
図参照）。 The narrower the angular range θ, the better the accuracy of this depth sounder 1. For example, it is widely used as a fish finder to distinguish between a school of fish F and the seabed 2 (No. 1-C
(see figure).
そこで、本発明の目的は、深度が増加しても位
置検出誤差に変動が生ずることがなく、トランス
ポンダを用いた場合に比べて高精度の位置検出が
可能であり、工業上、非常に有用な海底設置構造
物の位置検出制御方法を提供することにある。
Therefore, an object of the present invention is to prevent fluctuations in position detection error even when the depth increases, and to enable highly accurate position detection compared to the case of using a transponder. An object of the present invention is to provide a method for detecting and controlling the position of a structure installed on the seabed.
すなわち、本発明の海底設置構造物の位置検出
制御方法は、海底に設置された海底設置構造物に
対して、洋上から上部構造物を接続するに際し、
前記海底設置構造物上の周辺に該海底設置構造物
よりも高位置に位置してあらかじめ３個以上の反
射台を設置し、該反射台を、該反射台に対応する
ように前記上部構造物に取付けられた反射台と同
数の測深器によつて位置検出し、前記上部構造物
の方向制御を行うことを特徴とするものである。
That is, the position detection control method for a submarine installed structure of the present invention, when connecting a superstructure from the ocean to a submarine installed structure installed on the ocean floor,
Three or more reflecting tables are installed in advance around the submarine installation structure at a higher position than the submarine installation structure, and the reflecting tables are attached to the upper structure so as to correspond to the reflecting tables. The structure is characterized in that the position is detected by the same number of depth sounders as the reflecting tables attached to the upper structure, and the direction of the upper structure is controlled.
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２図において、２は海底であり、この海底２
上には、海底設置構造物３が設置されている。ま
た、海底設置構造物３の上面の周辺には、この海
底設置構造物３より高位置に位置して３個以上、
本実施例では、４個の反射台６Ａ，６Ｂ，６Ｃ，
６Ｄが設置されている。 In Figure 2, 2 is the ocean floor, and this ocean floor 2
A submarine installation structure 3 is installed above. In addition, around the upper surface of the submarine installation structure 3, there are three or more located at a higher position than the submarine installation structure 3.
In this embodiment, four reflecting tables 6A, 6B, 6C,
6D is installed.
一方、前記海底設置構造物３に接続する上部構
造物５には、反射台６Ａ，６Ｂ，６Ｃ，６Ｄに対
向する位置にそれぞれ測深器７Ａ，７Ｂ，７Ｃ，
７Ｄが取り付けられている。この上部構造物５
は、図示しない洋上の作業船から垂下したライザ
管４の下端部に取り付けられている。 On the other hand, the upper structure 5 connected to the submarine installation structure 3 has depth sounders 7A, 7B, 7C, respectively, at positions facing the reflecting tables 6A, 6B, 6C, and 6D.
7D is installed. This superstructure 5
is attached to the lower end of a riser pipe 4 hanging down from a work boat on the ocean (not shown).
次に、上部構造物５を海底設置構造物３に接続
させる接続作業について説明する。 Next, a connection operation for connecting the superstructure 5 to the submarine installed structure 3 will be explained.
第３図は、洋上の作業船から垂下したライザ管
４に取り付けられた上部構造物５の測深器７Ａ，
７Ｂ，７Ｃ，７Ｄが海底設置構造物３上の反射台
６Ａ，６Ｂ，６Ｃ，６Ｄと合致していない場合で
あり、この場合には、デイスプレイ面には、海底
のみが表示される。 FIG. 3 shows a sounder 7A of the superstructure 5 attached to the riser pipe 4 hanging from a work boat at sea.
This is a case where 7B, 7C, and 7D do not match the reflecting tables 6A, 6B, 6C, and 6D on the submarine installation structure 3, and in this case, only the ocean floor is displayed on the display surface.
そこで、トランスポンダで位置検出を行つて上
部構造物５を矢印Ｍの方向に移動させると、第４
図に示すように、測深器の一つである測深器７Ｃ
が海底設置構造物３にかかる。そして、デイスプ
レイ面には、海底２より高位置にある海底設置構
造物３がぼんやり表示される。 Therefore, when the transponder detects the position and moves the upper structure 5 in the direction of arrow M, the fourth
As shown in the figure, depth sounder 7C, which is one of the depth sounders.
is applied to the submarine installed structure 3. Then, the submarine installed structure 3 located at a higher position than the ocean floor 2 is vaguely displayed on the display surface.
そこで、上部構造物５を矢印M′の方向に移動
させると、第５図に示すように、２個の測深器７
Ｃ，７Ｄが海底設置構造物３にかかる。そして、
デイスプレイ面には、海底２より高位置にある海
底設置構造物３がややぼんやり表示される。 Therefore, when the upper structure 5 is moved in the direction of arrow M', the two sounders 7 are moved as shown in FIG.
C and 7D are applied to the submarine installation structure 3. and,
On the display surface, the submarine installed structure 3 located at a higher position than the ocean floor 2 is displayed somewhat vaguely.
そこで、上部構造物５を矢印M″の方向に移動
させると、第６図に示すように、４個の測深器７
Ａ，７Ｂ，７Ｃ，７Ｄが同数の反射台６Ａ，６
Ｂ，６Ｃ，６Ｄと対峙し、デイスプレイ面には、
海底設置構造物３より高位置にある反射台６Ａ，
６Ｂ，６Ｃ，６Ｄがはつきり表示される。 Therefore, when the superstructure 5 is moved in the direction of the arrow M'', the four sounders 7 are moved as shown in FIG.
A, 7B, 7C, 7D are the same number of reflection tables 6A, 6
Confronting B, 6C, and 6D, on the display surface,
Reflection table 6A located higher than the submarine installation structure 3,
6B, 6C, and 6D are displayed on the screen.
これで、上部構造物５の精接近は終了し、その
後は、傾斜板、ガイドフアンネル、ガイドスポツ
トなどの機械的なガイド装置によつて正確な位置
出しを行いながら上部構造物５を海底設置構造物
３に着座させることにより、上部構造物５と海底
設置構造物３との結合が行われる。 This completes the precise approach of the superstructure 5, and after that, the superstructure 5 is placed on the seabed while being accurately positioned using mechanical guide devices such as inclined plates, guide funnels, and guide spots. By seating it on the structure 3, the upper structure 5 and the submarine installed structure 3 are connected.
第７−Ａ図は、上部構造物５の中心位置Ｏと海
底設置構造物３の中心位置O′とが一致していて
も、測深器７Ａ，７Ｂ，７Ｃ，７Ｄと反射台６
Ａ，６Ｂ，６Ｃ，６Ｄとの位置が一致しない場合
であり、この場合には、上部構造物５を時計方向
又は反時計方向に回転させることにより、第７−
Ｂ図に示すように、上部構造物５の測深器７Ａ，
７Ｂ，７Ｃ，７Ｄを海底設置構造物３の反射台６
Ａ，６Ｂ，６Ｃ，６Ｄと一致させることができ
る。 In Figure 7-A, even if the center position O of the superstructure 5 and the center position O' of the submarine installed structure 3 match, the sounders 7A, 7B, 7C, 7D and the reflection table 6
This is a case where the positions of A, 6B, 6C, and 6D do not match. In this case, by rotating the upper structure 5 clockwise or counterclockwise,
As shown in Figure B, the depth sounder 7A of the superstructure 5,
7B, 7C, 7D as reflection table 6 of submarine installation structure 3
A, 6B, 6C, and 6D can be matched.
上記のように、本発明は、海底設置構造物上の
周辺に該海底設置構造物よりも高位置に位置して
３個以上の反射台を設置すると共に、上部構造物
に前記反射台と同数の測深器を配設して、前記上
部構造物の方向制御を行うようにしたから、深度
が増加しても位置検出誤差に変動が生ずることが
なく、トランスポンダを用いた場合に比べて高精
度の位置検出が可能になり、工業上、非常に有用
である。
As described above, the present invention includes installing three or more reflecting tables around a submarine installation structure at a higher position than the submarine installation structure, and installing the same number of reflecting tables on the upper structure. Since the depth sounder is installed to control the direction of the superstructure, the position detection error does not change even when the depth increases, and the accuracy is higher than when using a transponder. This makes it possible to detect the position of the object, which is very useful industrially.
第１−Ａ図は測深器の原理を示す説明図、第１
−Ｂ図は測深器のデイスプレイ面の説明図、第１
−Ｃ図は魚群探知器の説明図、第２図は本発明方
法によつて海底設置構造物の位置検出制御を行う
説明図、第３図乃至第６図は上部構造物の測深器
によつて海底設置構造物の反射台を捕捉する状態
を示す説明図、第７−Ａ図及び第７−Ｂ図は上部
構造物の測深器によつて海底設置構造物の反射台
を捕捉する他の例を示す説明図である。
２……海底、３……海底設置構造物、４……ラ
イザ管、５……上部構造物、６Ａ，６Ｂ，６Ｃ，
６Ｄ……反射台、７Ａ，７Ｂ，７Ｃ，７Ｄ……測
深器。
Figure 1-A is an explanatory diagram showing the principle of a depth sounder.
-Figure B is an explanatory diagram of the display surface of the sounder, the first
-C is an explanatory diagram of a fish finder, Fig. 2 is an explanatory diagram of position detection control of a structure installed on the seabed by the method of the present invention, and Figs. Figures 7-A and 7-B are explanatory diagrams showing a state in which a reflecting table of a structure installed on the seabed is captured by a sounder on a superstructure. It is an explanatory diagram showing an example. 2... Seabed, 3... Submarine installation structure, 4... Riser pipe, 5... Superstructure, 6A, 6B, 6C,
6D...Reflector, 7A, 7B, 7C, 7D...Deep sounder.
Claims (1)
洋上から上部構造物を接続するに際し、前記海底
設置構造物上の周辺に該海底設置構造物よりも高
位置に位置してあらかじめ３個以上の反射台を設
置し、該反射台を、該反射台に対応するように前
記上部構造物に取付けられた反射台と同数の測深
器によつて位置検出し、前記上部構造物の方向制
御を行うことを特徴とする海底設置構造物の位置
検出制御方法。1. For submarine installed structures installed on the seabed,
When connecting a superstructure from the ocean, three or more reflective stands are installed in advance around the submarine structure at a higher position than the submarine structure, and the reflector is connected to the Position detection control for a structure installed on the seabed, characterized in that the position is detected by the same number of depth sounders as the number of reflecting tables attached to the superstructure so as to correspond to the platforms, and the direction of the superstructure is controlled. Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5163583A JPS59178314A (en) | 1983-03-29 | 1983-03-29 | Method for detecting and controlling position of submarine construction on seabed from sea-surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5163583A JPS59178314A (en) | 1983-03-29 | 1983-03-29 | Method for detecting and controlling position of submarine construction on seabed from sea-surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59178314A JPS59178314A (en) | 1984-10-09 |
| JPH0347442B2 true JPH0347442B2 (en) | 1991-07-19 |
Family
ID=12892301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5163583A Granted JPS59178314A (en) | 1983-03-29 | 1983-03-29 | Method for detecting and controlling position of submarine construction on seabed from sea-surface |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59178314A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54115266A (en) * | 1978-02-28 | 1979-09-07 | Jiei Shia Rejinarudo | Underwater transponder calibrating arrangements |
| JPS57110911A (en) * | 1980-12-27 | 1982-07-10 | Towa Seisakusho:Kk | Measurement of length of object by supersonic wave |
-
1983
- 1983-03-29 JP JP5163583A patent/JPS59178314A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54115266A (en) * | 1978-02-28 | 1979-09-07 | Jiei Shia Rejinarudo | Underwater transponder calibrating arrangements |
| JPS57110911A (en) * | 1980-12-27 | 1982-07-10 | Towa Seisakusho:Kk | Measurement of length of object by supersonic wave |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59178314A (en) | 1984-10-09 |
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