JPH10278874A - Ocean oil shipping device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To safely carry out shipping work especially even at the time of a high sea concerning a device to load out oil to a tanker for oil transportation from an oil production facility on an ocean platform. SOLUTION: An oil transfer hose 4 connected to an oil production facility of an ocean platform 1 is provided to be extended under water through a hose take-up machine 5, and the oil transfer hose 4 is connected to an oil receiver of a tanker 2 through a coupling when a self-propulsion type diving movable body 3 on a head end of the hose 4 is fit in a recessed part 8 for cargo handling of the tanker 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for offloading oil from an oil production facility on a platform to an oil transportation tanker at sea.

[0002]

2. Description of the Related Art FIG.
(Plan view) and FIG. 6 (cross-sectional view). The oil transport tanker 2 is in contact with the platform 1 as a floating body anchored to the seabed by the anchor chain 14 via the fender 16. The ship is moored by the mooring line 15 and is loaded with oil via the oil filling pipe 17.

[0003]

In the above-described conventional offshore oil offloading apparatus, the relative movement between the platform 1 and the tanker 2 occurs. In addition to the difficulty of mooring the tanker 2, the relative movement of the tanker 2 exceeds the limit of the movement allowed for the oil filling pipe 17, which impedes the operation of loading oil, and consequently the operating rate of the oil production facility Is also reduced.

[0004] Accordingly, the present invention provides an offshore oil loading apparatus capable of safely performing an oil loading operation via a calm underwater even if the waves are high without requiring a mooring of a tanker to a platform. The challenge is to provide

[0005]

In order to solve the above-mentioned problems, an offshore petroleum offloading apparatus according to the present invention comprises an offshore platform and an oil feed hose extending from the oil production facility on the platform to the sea. In addition, a self-propelled diving vehicle connected to the tip of the oil supply hose is provided,
The diving vehicle is provided with a coupling capable of connecting the oil supply hose to an oil receiving port in a submerged portion of the oil transport tanker.

In the above-described offshore oil loading apparatus of the present invention, the self-propelled diving vehicle reaches the oil transport tanker from the platform having the oil production facility via the sea and connects the oil feed hose. In addition, the tanker does not need to be moored to the platform, and can be anchored to the sea floor or provided with appropriate position holding means such as a thruster.

[0007] Since the sea is calm even when the waves are high, the diving vehicle can be easily moved, and the oil loading operation can be safely performed in combination with the flexibility of the oil supply hose.

When the platform is provided with a hose winder for feeding and winding the oil feeding hose, the oil feeding hose is fed in accordance with the distance between the platform and the tanker. While adjusting the length, the oil unloading operation can be performed smoothly.

Further, if the platform is configured as a floating body and a storage recess is formed at the bottom of the platform so that the diving vehicle can be fitted from below, the platform can be shaken by waves. When the diving vehicle is not used, it can be stored in the storage recess and held safely.

If the platform is provided with a guide pipe for guiding the oil supply hose to the storage recess, the diving vehicle enters the recess for storage or moves out of the recess. In this case, the oil supply hose is smoothly processed.

Further, at the bottom of the oil transport tanker,
When a cargo handling recess for introducing the diving vehicle and performing cargo handling is formed and the oil receiving port is provided in the cargo handling recess, when the oil is unloaded, the Is introduced into the cargo handling recess at the bottom of the tanker, so that the coupling in the diving vehicle can be automatically connected to the oil receiving port in the recess, and the cargo handling work can be performed quickly. .

Further, in the offshore petroleum unloading device of the present invention, the diving vehicle is provided with a propulsion means capable of moving the diving vehicle in all directions of front and rear, left and right and up and down.
A position monitor for detecting the position of the diving vehicle in the sea with the platform is provided.

[0013] Thus, the diving vehicle started from the platform is remotely controlled by a propulsion means capable of moving the diving vehicle in all directions, and is maneuvered so that it can move freely in the sea. It is possible to reliably reach the oil transport tanker while detecting the position in the sea by the monitor.

[0014]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of an offshore petroleum offloading apparatus according to an embodiment of the present invention before starting work, and FIG. FIG. 3 is a longitudinal sectional view of the diving vehicle, FIG. 3 is a sectional view taken along the line AA of FIG. 2, and FIGS. 4 (a), (b) and (c) are transverse sectional views sequentially showing the operation state of the apparatus of FIG. is there.

As shown in FIG. 1, a platform 1 floating on the sea surface 10 on the sea is provided with an oil feed hose 4 connected to an oil production facility inside the platform 1. The oil feed hose 4 is a hose on the platform 1. The paper is unwound or wound by a winder 5.

A self-propelled diving vehicle 3 is connected to the tip of the oil supply hose 4 and the mobile device 3 is inserted from below into a storage recess 6 formed in the bottom of the platform 1 when not in use. It is designed to be inserted and stored.

The platform 1 is provided with a guide pipe 7 for guiding the oil supply hose 4 to the storage recess 6.

Further, at the bottom of the oil transport tanker 2 receiving the oil unloading from the platform 1, there is formed a cargo handling recess 8 for introducing the diving vehicle 3 to carry out cargo handling. An oil port 8a is provided therein.

As shown in FIGS. 2 and 3, the self-propelled submersible dive 3 has a pair of left and right remote control types for freely moving the same in a horizontal plane by remote control from the platform 1. All directions (front, rear, left and right) consisting of a pair of front and rear remote control type vertical propulsion means 11, 11 for moving the moving body 3 freely in the vertical plane by remote control from the platform 1 by the horizontal propulsion means 12, 12 And vertical direction)
A moving propulsion unit is provided, and a position monitor (not shown) for detecting the position of the moving body 3 in the sea with the platform 1 is provided. As this position monitor, a sonar or the like can be used.
Is temporarily disabled to stop the generation of disturbing sound, the position of the moving body 3 can be accurately detected. As the omnidirectional moving propulsion means, an omnidirectional thruster that can be propelled in an arbitrary direction by changing the blade angle may be used.

Further, if a floating chamber is provided inside the moving body 3 and the specific gravity of the floating chamber is made substantially equal to that of seawater, the settlement of the moving body 3 is suppressed even when the vertical propulsion means 11 is stopped. be able to.

Further, an illuminating lamp and a television camera are provided on the moving body 3, and the relative relationship between the moving body 3 and the cargo handling recess 8 in the tanker 2 is checked on the monitor 1 on the platform 1 while the moving body 3 is being checked. If the 3 is guided to the cargo handling recess 8, the moving body 3 can be properly introduced into the recess 8.

As shown in FIG. 2, the diving vehicle 3 is provided with a coupling 13 so that the oil feeding hose 4 can be connected to the oil receiving port 8a of the tanker 2 (see FIG. 1). It has become.

The operation of each of the propulsion means 11 and 12 is performed by a motor (not shown).
It is performed from a power supply of the platform 1 via a cable running along the oil supply hose 4.

In the above-described offshore petroleum unloading apparatus according to the present embodiment, as shown in FIGS. 4A, 4B and 4C, the self-propelled diving vehicle 3 is moved from the platform 1 having oil production facilities. Since the tanker 2 arrives at the oil transport tanker 2 via the sea and connects the oil supply hose 4, the tanker 2 does not need to be moored to the platform 1 and can be anchored to the seabed or an appropriate position holding means such as a thruster. Should be taken.

Since the sea is calm even when the waves 9 are high, the dive moving body 3 can be easily moved, and the oil loading work can be safely performed in combination with the flexibility of the oil supply hose 4.

Since the platform 1 is provided with a hose winder 5 for feeding and winding the oil supply hose 4, the oil supply hose 4 is wound in accordance with the distance between the platform 1 and the tanker 2. The oil unloading operation can be smoothly performed while adjusting the feeding length.

Further, even when the platform 1 is shaken by the waves 9, when the diving vehicle 3 is not used, it can be stored in the storage recess 6 of the platform 1 and safely held.

The platform 1 is provided with a guide pipe 7 for guiding the oil feed hose 4 to the storage recess 6, so that the diving mobile 3 can enter the recess 6 for storage, or enter the recess. The processing of the oil supply hose 4 when the moving body 3 is dispatched from 6 becomes smooth.

Also, during the oil unloading operation, the diving vehicle 3 is introduced into the cargo handling recess 8 at the bottom of the tanker 2, so that the coupling of the diving vehicle 3 into the oil receiving port 8 a in the recess 8. 13 can be automatically connected, and the cargo handling work can be performed quickly.

Further, the diving vehicle 3 launched from the platform 1 is remotely controlled by a pair of left and right horizontal propulsion means 12, 12 and a pair of front and rear vertical propulsion means 11, 11 and can be freely operated in the sea. Therefore, it is possible to reliably reach the oil transport tanker 2 while detecting the position in the sea by the position monitor.

[0031]

As described in detail above, the following effects can be obtained by the offshore petroleum offloading apparatus of the present invention. (1) The self-propelled diving vehicle reaches the tanker for oil transportation from the platform with oil production facilities via the sea and connects the oil supply hose via the coupling, so the tanker is moored to the platform. It is no longer necessary to perform anchoring to the sea floor or take appropriate position holding means such as a thruster. Since the sea is calm even when the waves are high, the diving vehicle can be easily moved, and the oil loading work can be safely performed in combination with the flexibility of the oil supply hose. (2) If the platform is provided with a hose winder that feeds and winds the oil feed hose, the feed length of the oil feed hose depends on the distance between the platform and the tanker. The oil loading operation will be carried out smoothly while adjusting the pressure. (3) If the platform is configured as a floating body and a storage recess is formed at the bottom of the platform so that the diving mobile body can be fitted from below, the diving is performed even if the platform is shaken by waves. When the moving body is not used, it can be stored in the storage recess and held safely. (4) If the platform is provided with a guide pipe for guiding the oil supply hose to the storage recess, the diving vehicle may enter the recess for storage or move out of the recess. In this case, the processing of the oil supply hose is performed smoothly. (5) At the bottom of the oil transport tanker, a cargo handling recess for introducing the diving vehicle and performing cargo handling is formed, and the oil receiving port is provided in the cargo handling recess. By introducing the diving vehicle into the cargo handling recess at the bottom of the tanker during the oil unloading operation, it is possible to automatically connect the coupling of the diving vehicle to the oil receiving port in the recess. Thus, the cargo handling work can be performed quickly. (6) The submersible moving vehicle launched from the above platform,
The propulsion means that can move the diving vehicle in all directions is remotely controlled and maneuvered so that it can move freely in the sea. You will be able to reach it reliably.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a state before starting operation of an offshore petroleum unloading apparatus as one embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of a self-propelled diving vehicle in the apparatus of FIG.

FIG. 3 is a sectional view taken on line AA of FIG. 2;

4 (a), 4 (b) and 4 (c) are cross-sectional views sequentially showing the operation state of the apparatus of FIG.

FIG. 5 is a plan view showing a conventional offshore oil unloading device.

6 is a cross-sectional view of the device of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Platform with oil production facilities 2 Tanker for oil transportation 3 Self-propelled diving vehicle 4 Oil supply hose 5 Hose winding machine 6 Storage recess 7 Guide pipe 8 Loading recess 9 Wave 10 Sea surface 11 Vertical propulsion means 12 Horizontal Propulsion means 13 Coupling 14 Anchor chain 15 Mooring line 16 Fender 17 Oil filling pipe

Claims (6)

[Claims] A self-propelled diving vehicle is provided, comprising: an offshore platform; and an oil feed hose that can extend from the oil production facility on the platform to the sea, and connected to a tip end of the oil feed hose. An offshore oil unloading device, characterized in that the diving vehicle is provided with a coupling capable of connecting the oil transfer hose to an oil receiving port in a submerged portion of an oil transport tanker. 2. The offshore oil unloading device according to claim 1, wherein the platform is provided with a hose winder for feeding and winding the oil feed hose. 3. The platform according to claim 1, wherein the platform is configured as a floating body, and a storage recess is formed at a bottom portion of the platform so that the diving vehicle can be fitted from below. Offshore petroleum offloading device as described. 4. The offshore petroleum unloading device according to claim 3, wherein the platform is provided with a guide pipe for guiding the oil supply hose to the storage recess. 5. A cargo handling recess for introducing the diving vehicle and performing cargo handling is formed at the bottom of the oil transport tanker, and the oil receiving port is provided in the cargo handling recess. The offshore petroleum offloading device according to any one of claims 1 to 4, characterized in that: 6. The diving vehicle is provided with propulsion means capable of moving the diving vehicle in all directions, front and rear, left and right, and up and down, and for detecting the position of the diving vehicle in the sea with the platform. 6. A position monitor according to claim 1, wherein a position monitor is provided.
An offshore petroleum unloading device according to any one of the above.