KR20150057686A - Sea floor pipe line detector and detecting method thereof - Google Patents

Sea floor pipe line detector and detecting method thereof Download PDF

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Publication number
KR20150057686A
KR20150057686A KR1020130141356A KR20130141356A KR20150057686A KR 20150057686 A KR20150057686 A KR 20150057686A KR 1020130141356 A KR1020130141356 A KR 1020130141356A KR 20130141356 A KR20130141356 A KR 20130141356A KR 20150057686 A KR20150057686 A KR 20150057686A
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KR
South Korea
Prior art keywords
pipe
moving
unit
inspection
inspecting
Prior art date
Application number
KR1020130141356A
Other languages
Korean (ko)
Inventor
강효동
김대중
주영석
Original Assignee
대우조선해양 주식회사
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Priority to KR1020130141356A priority Critical patent/KR20150057686A/en
Publication of KR20150057686A publication Critical patent/KR20150057686A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D5/00—Protection or supervision of installations
    • F17D5/02—Preventing, monitoring, or locating loss
    • F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation

Abstract

An undersea pipeline inspection apparatus and a inspection method thereof are disclosed. An apparatus for inspecting an undersea pipeline according to an embodiment of the present invention includes: a moving and inspecting unit arranged to surround an outside of a pipe, being movable along a pipe and inspecting an inside of the pipe; And a drilling unit coupled to the moving and inspecting unit, wherein the drilling unit drills the bottom of the bottom so as to enable movement of the moving and inspecting unit to the bottom of the seabed so as to provide a moving path of the moving and inspecting unit.

Description

TECHNICAL FIELD [0001] The present invention relates to a submarine pipeline inspection apparatus,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for inspecting a submarine pipeline and a method of inspecting the same. More particularly, the present invention relates to an apparatus for inspecting a submarine pipeline and a method of inspecting the same.

Recently, risers and pipelines corresponding to the movement path of petroleum resources in the development of the seabed well can be produced on the inner wall of the pipe by the change of ambient temperature and internal pressure.

As such, the product produced on the inner wall of the pipeline can obstruct the flow of petroleum resources, thereby reducing the production amount, or completely shutting off the inside of the pipeline, making the flow of resources impossible.

Therefore, the production of such products may be prevented in advance, or the inside of the pipe may be periodically or periodically pigged.

This pigging operation must be done through the interior of the pipeline, so it is possible to shut off the flow of the pipeline itself, ie shut down the production in the well.

Such cleaning of existing pipelines is a task that can be done by cutting off the flow of the pipeline, but it does so at the occurrence of the product or on a regular basis, despite the disadvantage of lowering the productivity because it is an essential task.

Korean Patent Application No. 10-2009-7016229

An embodiment of the present invention seeks to provide a submarine pipeline inspection apparatus and method for inspecting the interior of a pipeline along a pipeline without interfering with the pipeline flow itself.

According to an aspect of the present invention, a moving and inspecting unit arranged to surround an outside of a pipe, the moving and inspecting unit being provided to be movable along the pipe and inspecting the inside of the pipe; And a drilling unit coupled to the moving and inspecting unit for drilling the bottom of the bottom so as to enable movement of the moving and inspecting unit to the bottom of the seabed so as to provide a moving path of the moving and inspecting unit. A device may be provided.

Wherein the drilling unit comprises: a drilling body enclosing the pipe and coupled to the moving and inspecting unit, the drilling body providing power for the drilling; And a drill bit coupled to the drilling body to receive power from the drilling body, the drill bit being adapted to drill the bottom of the undersea.

Wherein the moving and inspecting unit comprises: a moving module provided to be able to run along an outer wall of the pipeline; And an inspection module adapted to perform inspection of the inside of the pipe.

Wherein the moving module includes a hydraulic driving part provided to be driven by hydraulic pressure, the hydraulic driving part including: a hydraulic motor; And a plurality of moving wheels which are rotationally driven by the hydraulic motor and arranged in an annular shape to be in contact with the pipe.

The drilling unit may be provided to be driven by the hydraulic motor, and the drilling body may be provided with a ring gear coupled to the hydraulic motor to drive the drill bit.

And a power cable unit connected to the moving and inspecting unit to provide power and power to the moving and inspecting unit, and a signal in which a signal cable is arranged to send and receive a signal.

According to another aspect of the present invention, there is provided a pipeline inspection method comprising: arranging a pipeline inspection apparatus on a pipe so as to surround a pipe; Operating a drilling unit of the movement and inspection unit of the inspection apparatus of the pipeline; Inspecting the outer and inner walls of the pipe while moving the inspection module along the pipe by the movement module of the movement and inspection unit; Transmitting inspection data for the pipe through a cable; And analyzing the inspection data for the outer and inner walls of the pipe to grasp the generation of cracks or products on the inner and outer walls of the pipe.

The inspection module may perform inspection of the pipe using at least one of radiation, ultrasonic waves, and eddy currents.

The moving and inspecting unit and the drilling unit can be operated by hydraulic pressure.

According to an embodiment of the present invention, it is possible to provide an undersea pipeline inspection apparatus and method for inspecting the interior of a pipeline along a pipeline without interfering with the pipeline flow itself.

1 is a schematic diagram of an apparatus for inspecting an undersea pipeline according to an embodiment of the present invention.
2 is a sectional view taken along the line I-I in Fig.
Figure 3 is a schematic view of a drilling unit and inspection and moving unit according to one embodiment of the present invention.

Various embodiments of the present invention will now be described by way of specific embodiments shown in the accompanying drawings. The differences between the embodiments of the present invention described below are to be understood as mutually exclusive. That is, the specific shapes, structures, and characteristics described may be embodied in other embodiments in accordance with one embodiment without departing from the spirit and scope of the present invention, It is to be understood that the arrangements may be altered, where like reference numerals refer to like or similar features throughout the several views, and length and area, thickness, and the like may be exaggerated for convenience.

1, an apparatus for inspecting a submarine pipeline according to an embodiment of the present invention includes a pipe 101 arranged to surround the outside of a pipe 101, And a moving and inspecting unit 105 coupled to the moving and inspecting unit 105 for moving and inspecting the moving and inspecting unit 105 to the bottom of the seabed so that the moving and inspecting unit 105 can move and inspect And a drilling unit (130) for providing a path for the inspection unit (105).

According to this embodiment, a path along the pipe 101 at the bottom of the seabed for the movement of the movement and inspection unit 105 can be provided by the drilling unit 130, It is possible to inspect the outer wall and the inner wall of the pipe 101 while moving along the pipe 101.

At this time, the moving and inspecting unit 105 performs inspection while moving along the outer wall of the pipe 101, so that the outside and inside of the pipeline along the pipeline can be inspected without interfering with the flow of the pipeline itself .

Hereinafter, the components of the submarine pipeline inspection apparatus according to the present embodiment will be described in detail with reference to FIG. 1 to FIG.

First, the moving and inspecting unit 105 according to the present embodiment includes a moving module 110 provided so as to be able to run along an outer wall of a pipeline, a checking module (not shown) provided to inspect the inside of the pipe 101, (120).

The moving module 110 is disposed so as to surround the outer wall of the pipe 101 so as to be movable along the outer wall of the pipe 101 and can move along the pipe 101 driven by hydraulic pressure as described later.

3, the moving module 110 according to the present embodiment includes a hydraulic driving part 112 provided to be driven by hydraulic pressure, and the hydraulic driving part 112 includes a hydraulic motor 115, And a plurality of moving wheels 117 that are rotationally driven by the motor 115 and disposed annularly along the outer circumferential surface of the pipe 101 so as to be in contact with the pipe 101. [

The hydraulic drive part 112 driven by the hydraulic motor 115 can be moved by the moving wheel 117 disposed in the outer wall part of the pipe 101 in the circumferential direction.

That is, the hydraulic motor 115 can rotate the annular rotating shaft 119 connected to the moving wheel 117 so as to drive the plurality of moving wheels 117. The annular rotary shaft 119 is connected to the drive shaft 116 of the hydraulic motor 115 so as to be rotated by the hydraulic motor 115.

The annular rotary shaft 119 is flexible and can be rotated while wrapping the pipe 101. In addition, the annular rotary shaft 119 may form a node for each of the moving wheels 117, and the node elements may be rotatably connected to each other so as to be rotated while the pipe 101 is being wrapped.

The power transmission between the drive shaft 116 of the hydraulic motor 115 and the annular rotation shaft 119 is schematically shown in the drawing. The worm gear provided on the drive shaft 116 and the worm wheel provided on the rotation shaft 119 It is possible. The worm gear is indicated by a hatched portion on the driving shaft 116, and the worm wheel is indicated by a dashed circle on the inside of the moving wheel 117. Such a worm gear and a worm wheel are drive transmission elements that are mainly used for converting a driving line at a right angle.

Since the driving wheels 117 are driven by the hydraulic motor 115, the worm gears and the worm wheels, only the elements according to the present embodiment are used, and the moving wheels 117 can be driven by other methods. The right range is not limited to the movement by the movement wheel 117. [

Alternatively, the hydraulic motor 115 may adopt a rotary type that surrounds the pipe 101, and a spiral element that contacts the pipe 101 in a rotating element that surrounds the pipe 101 among the rotary type hydraulic motors In addition, it is possible to make it possible to proceed along the pipe 101 by the spiral contact.

Also, since the moving module 110 according to the present embodiment is described as being driven by the hydraulic motor 115 only as one exemplary driving technique, the driving technology for the moving module 110 is not limited to the hydraulic motor 115). The movement module 110 can also be driven by an electric motor.

Also, the inspection module 120 according to the present embodiment is arranged to annularly surround the outer wall of the pipe 101, so that the pipe 101 can be inspected in all areas. The inspection module 120 may include a nondestructive inspection unit 121 using radiation, ultrasonic waves, or an eddy current to inspect an outer wall portion and an inner wall portion of the pipe 101, as described later.

At this time, the inspection data of the outer wall part and the inner wall part of the pipe 101 can be transmitted by the inspection of the nondestructive inspection part 121. The inspection module 120 is provided with a transmission communication part 122 capable of transmitting the inspection data, .

Such a transmission communication unit 122 may be connected to wired communication connected to the signal and power cable unit 140 to be described later, and may be configured to perform wireless communication.

The drilling unit 130 according to the present embodiment includes a drilling main body 131 that encloses a pipe 101 and is coupled to the moving and inspection unit 105 and provides power for drilling, And a drill bit 132 coupled to the drilling body 131 to drill the bottom of the underside.

The drilling body 131 may be disposed in the direction of travel of the inspection and movement module 110 relative to the pipe 101 and the drill bit 132 may be disposed on the drilling body 131 to receive power from the drilling body 131. [ And can be rotationally driven.

The drill bit 132 may be disposed on both sides of the movement and inspection unit 105 to provide a movement path for movement of the movement and inspection unit 105 in both directions. The drill bit 132 may be provided in various shapes as shown in FIG. 4, and a structure suitable for the geological structure of the seabed can be selected.

1 and 3, a drilling unit 130 according to the present embodiment is provided to be driven by a hydraulic motor 115. The drilling main body 131 is coupled to a hydraulic motor 115, A ring gear 135 for driving the ring gear 132 may be provided.

The ring gear 135 arranged to be driven by the drive shaft 116 of the hydraulic motor 115 can be inscribed in the pinion gear 134 corresponding to the drive transmission system of the drive shaft 116. [ A pinion gear 134 is coupled to an end of the drive shaft 116. The ring gear 135 is rotated by the drive transmission system of the drive shaft 116 and the drill bit 132 coupled to the ring gear 135 can be rotated.

The rotation drive of the drill bit 132 by the ring gear 135 by the hydraulic motor 115 is only one example technique and therefore the configuration for rotation of the drill bit 132 is limited to this structure Do not.

The pipeline inspection apparatus according to the present embodiment includes a signal that is connected to the movement and inspection unit 105 to provide power and power to the movement and inspection unit 105 and in which the signal cable is arranged to send and receive signals, (140).

Such a signal and power cable unit 140 may be arranged with a hydraulic line or a power line capable of providing hydraulic pressure to the travel module 110 of the travel and inspection unit 105, It can be bundled with one cable set.

At this time, the signal and power cable unit 140 is arranged as a ship or a floating structure arranged in the sea so as to control the inspection apparatus of the pipeline.

An inspector of a ship or floating structure may control the inspection device of the submarine pipeline by wire or radio control. The drill bit 132 provides a path of movement of the inspection and movement module 110 and the inspection and movement module 110 may perform inspection of the outer and inner walls of the pipe 101 while advancing or retracting .

On the other hand, a method of inspecting the pipeline by the aforementioned pipeline inspection apparatus of the sea bed can be provided.

1 to 3, a submarine pipeline inspection method according to an embodiment of the present invention includes arranging a pipeline inspection apparatus on a pipe 101 so as to surround a pipe 101, Operating the drilling unit 130 of the moving and inspecting unit 105 in the apparatus and moving the inspecting module 120 along the pipe 101 by the moving module 110 of the moving and inspecting unit 105 Inspecting the outer wall and the inner wall of the pipe 101, transmitting the inspection data to the pipe 101 through a cable, analyzing the inspection data on the outer wall and the inner wall of the pipe 101, And the generation of cracks or products to the inner and outer walls of the substrate.

According to this, the moving and inspecting unit 105 can perform the inspection on the pipe 101 while moving along the movement path provided by the drilling unit 130, and if the flow of the pipeline itself is not blocked or interrupted The inspection of the outer wall and the inner wall of the standing pipe 101 can proceed.

To this end, the inspection module 120 may perform inspection of the pipe 101 using at least one of radiation, ultrasonic waves, and eddy currents. This inspection module 120 performs inspection of the pipe 101 in the same manner as the nondestructive tester.

Of course, the inspection module 120 may also include a camera to perform image inspection.

Further, the movement and inspection unit 105 and the drilling unit 130 according to the present embodiment can be operated by the hydraulic pressure as described above. This hydraulic pressure can provide a stable torque necessary to excavate the ground of the seabed by the drilling unit 130 and the bottom of the seafloor around the pipe 101 can be easily excavated by the drill bit 132.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Deletion, addition or the like of the present invention may be variously modified and changed within the scope of the present invention.

101: Pipe 105: Moving and Inspection Unit
110: Moving module 112: Hydraulic driving part
115: Hydraulic motor 116: Drive shaft
117: moving wheel 119: annular rotating shaft
120: Inspection module 121: Non-destructive inspection part
122: transfer communication unit 130: drilling unit
131: Drilling body 132: Drill bit
135: Ring gear 140: Signal and power cable unit

Claims (9)

A moving and inspecting unit arranged to surround the outside of the pipe, the moving and inspecting unit being provided to be movable along the pipe and inspecting the inside of the pipe; And
And a drilling unit coupled to the moving and inspecting unit for drilling the bottom of the bottom so as to allow movement of the moving and inspecting unit to the bottom of the seabed so as to provide a moving path of the moving and inspecting unit. . The method according to claim 1,
The drilling unit comprises:
A drilling body coupled to said moving and inspecting unit while surrounding said pipe, said drilling body providing power for said drilling; And
And a drill bit coupled to the drilling body to receive power from the drilling body, the drill bit being adapted to drill the bottom of the seabed. 3. The method of claim 2,
The moving and inspecting unit comprises:
A moving module provided to be able to run along an outer wall of the pipeline; And
And an inspection module provided to inspect the inside of the pipe. The method of claim 3,
The mobile module comprises:
And a hydraulic drive portion provided to be driven by hydraulic pressure,
The hydraulic drive unit includes:
Hydraulic Motor; And
And a plurality of moving wheels which are rotationally driven by a hydraulic motor and are annularly arranged to be in contact with the pipe. 5. The method of claim 4,
Wherein the drilling unit is configured to be driven by the hydraulic motor, wherein the drilling body is provided with a ring gear coupled to the hydraulic motor to drive the drill bit. The method of claim 3,
Further comprising: a signal and power cable unit connected to said moving and inspecting unit to provide power and power to said moving and inspecting unit, wherein a signal cable is arranged to transmit and receive signals; and a power cable unit. Disposing a pipeline inspection device on the pipe so as to surround the pipe;
Operating a drilling unit of the movement and inspection unit of the inspection apparatus of the pipeline;
Inspecting the outer and inner walls of the pipe while moving the inspection module along the pipe by the movement module of the movement and inspection unit;
Transmitting inspection data for the pipe through a cable; And
Analyzing the inspection data for the outer and inner walls of the pipe to determine generation of cracks or products to the inner and outer walls of the pipe. 8. The method of claim 7,
Wherein the inspection module performs inspection of the pipe using at least one of radiation, ultrasonic waves, and eddy currents. 8. The method of claim 7,
Wherein said moving and inspecting unit and said drilling unit are operated by hydraulic pressure.
KR1020130141356A 2013-11-20 2013-11-20 Sea floor pipe line detector and detecting method thereof KR20150057686A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110531430A (en) * 2019-08-29 2019-12-03 中国石油天然气集团公司 Processing method, device and the electronic equipment of submarine pipeline magnetic survey data
CN111102423A (en) * 2019-12-16 2020-05-05 江苏科技大学 Compound type silencing barrel based on photonic crystal pipeline
CN111208271A (en) * 2020-01-07 2020-05-29 东北大学 Test device of seabed oil and gas pipeline detection equipment with multiple emergency stop functions
KR20230171119A (en) 2022-06-13 2023-12-20 주식회사 창성금속 Complex System for Pipe Adjusting, Inspecting and Processing

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110531430A (en) * 2019-08-29 2019-12-03 中国石油天然气集团公司 Processing method, device and the electronic equipment of submarine pipeline magnetic survey data
CN111102423A (en) * 2019-12-16 2020-05-05 江苏科技大学 Compound type silencing barrel based on photonic crystal pipeline
CN111208271A (en) * 2020-01-07 2020-05-29 东北大学 Test device of seabed oil and gas pipeline detection equipment with multiple emergency stop functions
KR20230171119A (en) 2022-06-13 2023-12-20 주식회사 창성금속 Complex System for Pipe Adjusting, Inspecting and Processing

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