KR101138764B1 - Heating apparatus of deck using waste heat of mud pump in floating drilling rig - Google Patents

Abstract

The present invention relates to a drilling deck heating apparatus using waste heat of a mud pump in an offshore drilling vessel, wherein a plurality of mud pumps are disposed and a first air supply fan which introduces outside air to one side so as to discharge heat emitted from the mud pump to the outside The mud pump chamber is provided with a first vent for discharging the heat of the high temperature on the other side, and a plurality of drilling equipment is arranged and the inlet and the other side is installed on one side so that hot air can be introduced to protect the drilling equipment from low temperature And a drilling deck chamber provided with a second vent hole for discharging internal air in the air outlet, the exhaust pipe connected to the first vent hole and the outside, a heating inlet pipe leading from the second air supply fan to the inlet to the inlet port, and an exhaust pipe. Drilling deck room heated by heat-exchanging the high-temperature waste heat discharged from the air and the outside air flowing from the heating inlet pipe It comprises parts of the heat exchange flowing. Therefore, according to the present invention, instead of a large-capacity heating system for heating the interior of the drilling deck chamber, by heating the interior of the drilling deck chamber using the outside air heated by heat exchange with the high temperature exhaust waste heat emitted from the mud pump chamber, the cost saving and energy saving effect Has

Offshore drilling vessels, mud pumps, waste heat, drilling decks, heating, heat exchange

Description

HEATING APPARATUS OF DECK USING WASTE HEAT OF MUD PUMP IN FLOATING DRILLING RIG}

The present invention relates to a drilling deck heating apparatus using waste heat of a mud pump in an offshore drilling vessel, and more particularly, by heating the inside of a drilling deck chamber using high temperature waste heat discharged from a mud pump chamber in which a plurality of mud pumps are arranged. The present invention relates to a drilling deck heating apparatus using waste heat from a mud pump in an offshore drilling vessel that does not require a separate device for heating the system.

In general, the drilling vessel is a vessel for drilling oil or gas existing in the basement of the seabed, equipped with various drilling equipment, and can achieve a stable oil well development with less shaking or change of position due to tidal current, wind direction, wind speed, and digging.

In order to drill holes in the seabed, these drilling vessels must first be able to destroy rocks, effectively remove the excavated rock debris, prevent the drilled holes from collapsing, and prevent the oil and gas from being ejected. This is a mud circulation method.

The mud circulation system pushes the mud down into the bottom of the borehole. The mud that reaches the end of the bore tube is injected from the nozzle with high pressure, and after injection, it is pushed up through the gap between the well wall and the bore tube. At this time, the soil and rock debris dug together with the mud is carried together, and the hole is drilled by drilling the hole in the floor by the force of the nozzle pressure, and bringing the cut debris up using the mud's adhesiveness. will be.

In this mud circulation method, a plurality of mud pumps and equipment for drilling are required, and a separate space is provided for the plurality of mud pumps and drilling equipment in the drilling vessel.

1 is a schematic view showing a mud pump chamber and a drilling deck chamber according to the prior art.

First, a plurality of large-capacity mud pumps 11 are disposed in the mud pump chamber 10, and a high-temperature environment is maintained due to the calorific value of these mud pumps 11, so that the outside air is improved to improve a comfortable working environment from the high-temperature environment. An air supply fan 13 for supplying the gas and a vent hole 14 for discharging the air to the other side of the air supply fan 13 are provided.

And each of the mud pump 11 is provided with a cooling fan 12 for discharging the heat generated by the driving of the motor.

And in contrast to the mud pump chamber 10, the drilling deck chamber 20, which requires a heating system, is a space in which the actual drilling equipment 22 is mounted and performs drilling operations. There is no device with a large amount of heat in the drilling deck room 20, and the lower part is connected to the door pool 21, and the space is opened to the bottom of the seawater. This open space is located at an upper distance from the sea level.

In particular, during the drilling operation in the cold sea area, to isolate the drilling deck chamber 20 by using a protective plate (not shown), which is to prevent the intrusion of low-temperature outdoor air, the isolated drilling deck chamber 20 in the drilling work environment and drilling from low temperature A heating system is provided for the protection of the equipment 22.

The heater 23 is installed in the drilling deck chamber 20 on one side of the drilling deck chamber 20, and the vent hole 24 is provided on the other side of the drilling deck chamber 20 facing the heater 23.

However, since the isolated drilling deck chamber 20 has a long horizontal space and a large space, a large-capacity heater 23 for heating it is required, which requires a lot of manufacturing and installation costs.

The present invention has been invented to solve the above problems, the object of the drilling by heat-exchanging the hot exhaust waste heat and cold outside air discharged from the mud pump chamber and thereby heating the inside of the drilling deck chamber using the heat exchanged outside air, drilling It is to provide a drilling deck heating device using the waste heat of the mud pump in the offshore drilling ship that can reduce the cost and energy savings by not needing a large heating system in the deck room.

In order to achieve the above object, according to the present invention, a plurality of mud pump is disposed and discharge the high-temperature heat to the first air supply fan and the other side to introduce the outside air to one side so that the heat emitted from the mud pump to the outside The mud pump chamber is provided with a first vent hole for the purpose, and a plurality of drilling equipment is disposed and the inlet is installed on one side so that the hot air can be introduced for protection of the drilling equipment from low temperature and the internal air discharged to the other side 2 includes a drilling deck chamber provided with a vent hole, the exhaust pipe is connected to the first vent hole and installed outside, a heating inlet pipe leading from the second air supply fan for introducing outside air to the inlet port, and high temperature waste heat and heating discharged from the exhaust pipe. Ocean time including a heat exchanger for introducing warm air to the drilling deck chamber by heat-exchanging the outside air introduced from the inlet pipe Drilling deck heating apparatus using waste heat of the mud pump in the vertebrae is provided.

And the heating inlet pipe may be provided with a heat dissipation pipe that can be transferred from each mud pump to transfer the high temperature heat.

According to the drilling deck heating apparatus using waste heat of the mud pump in the offshore drilling vessel of the present invention, instead of a large-capacity heating system for heating the interior of the drilling deck chamber, using the outside air heated by heat exchange with the hot exhaust waste heat emitted from the mud pump chamber By heating the interior of the drilling deck room, it has the effect of reducing costs and energy.

Hereinafter, one embodiment of the present invention will be described in more detail with reference to the accompanying drawings so that those skilled in the art can easily practice, but this is only an example, the present invention is limited thereto. It doesn't happen.

Figure 2 is a block diagram of a drilling deck heating apparatus using the waste heat of the mud pump in the offshore drilling vessel according to an embodiment of the present invention.

As shown in FIG. 2, the drilling deck heating apparatus using waste heat of the mud pump in the marine drilling vessel of the present embodiment includes a mud pump chamber 100 in which a plurality of mud pumps 102 are disposed, and a plurality of drilling equipments 122. The drilling deck chamber 120 is disposed, the exhaust pipe 110 is discharged hot waste heat from the mud pump chamber 100, the heating inlet pipe 130 for supplying the hot air to the drilling deck chamber 120, and the exhaust pipe ( It may include a heat exchanger 140 for heat-exchanging the high temperature heat discharged from 110 and the outside air of the heating inlet pipe 130.

Here, a plurality of large-capacity mud pumps 102 may be disposed in the mud pump chamber 100, and each mud pump 102 may be provided with a cooling fan 103 for discharging heat generated by driving of an internal motor.

In addition, a first air supply fan 104 for supplying outside air is installed at one side of the mud pump chamber 100 so as to improve a comfortable working environment from the high temperature environment maintained by the heat generation amount of these mud pumps 102, and the first The other side of the air supply fan 104 may be provided with a first vent (106) for discharging the hot air.

The first vent hole 106 is provided with an exhaust pipe 110 extending to the outside to discharge the inside of the mud pump chamber 100 to the outside.

Meanwhile, the drilling deck chamber 120 may be a space in which the actual drilling equipment 122 is mounted and performs drilling operations, and there is no device having a large amount of heat, and the bottom is connected to the door pool 124 and the bottom may be seawater. The space is open. This open space is located at an upper distance from the sea level.

The drilling deck chamber 120 may be formed with an inlet 126 for introducing hot air to one side and a second vent hole 128 on the other side of the inlet 126.

In addition, the inlet 126 may be provided with a heating inlet pipe 130 from the second air supply fan 132 for introducing the outside air.

The heat exchanger 140 installed in the exhaust pipe 110 and the heating inlet pipe 130 has a high temperature by heat exchange in which high temperature waste heat discharged from the exhaust pipe 110 contacts the outside air introduced from the heating inlet pipe 130. The warmed air is to be introduced into the inlet 126 of the drilling deck chamber 120 through the heating inlet pipe 130.

In addition, the heating inlet pipe 130 may be provided with a heat dissipation pipe 150 that can be transferred directly from each mud pump 102 to directly transfer the high temperature heat.

The heat dissipation tube 150 may be installed in close proximity to the cooling fan 103 of the mud pump 102.

The operation of the drilling deck heating apparatus using the waste heat of the mud pump in the offshore drilling vessel made of such a structure is as follows.

Referring back to FIG. 2, a plurality of mud pumps 102 may be used as a power source for transporting mud during drilling operation in a mud circulation manner from a drilling vessel.

In these mud pumps 102, since a high temperature environment is maintained in the mud pump chamber 100 due to heat generated by driving of the motor, for this purpose, cold outside air flows into the mud pump chamber 100 through the first air supply fan 104. In addition, the hot bet inside the mud pump chamber 100 may be discharged through the first vent hole 106. Here, the hot bet waste heat discharged to the first vent hole 106 is discharged through the exhaust pipe 110.

The high temperature waste heat discharged through the exhaust pipe 110 is heat-exchanged in the heat exchanger 140 with the outside air introduced by the second air supply fan 132 of the heating inlet pipe 130, and the high-temperature outside air heated by the heat exchange is heated. It is introduced into the interior of the drilling deck chamber 120 connected to the inflow pipe 130 to protect the heating equipment 122 in a low temperature state, and can maintain a comfortable working environment.

Furthermore, by connecting the mud pump 102 and the heat generated from the mud pump 102 directly to the heating inlet tube 130 through the heat dissipation tube 150, the outside air warmed by the heat exchange unit 140 is further enhanced. It can be heated to increase the heating effect on the drilling deck chamber (120).

In addition, as the outside air flows into the drilling deck chamber 120, the outside air flows out into the second vent hole 128.

Therefore, as described above, by heat-exchanging the high temperature exhaust waste heat discharged from the mud pump chamber 100 and the cold outside air of the heating inlet pipe 130, and by heating the inside of the drilling deck chamber 120 by using the heat exchanged warm air This eliminates the need for a separate heating system, resulting in cost savings and energy savings.

As described above as a specific embodiment of the drilling deck heating apparatus using the waste heat of the mud pump in the offshore drilling vessel according to the present invention, this is only an example, the present invention is not limited thereto, the best light according to the basic idea disclosed herein It should be interpreted as having a range of. Those skilled in the art can easily change the material, size, etc. of each component according to the application field, and can be combined / substituted the disclosed embodiments to implement a pattern of a timeless shape, but this also does not depart from the scope of the present invention will be. It will be apparent to those skilled in the art that various changes and modifications may be readily made without departing from the spirit and scope of the invention as defined by the appended claims.

1 is a schematic view showing a mud pump chamber and a drilling deck chamber according to the prior art,

Figure 2 is a block diagram of a drilling deck heating apparatus using the waste heat of the mud pump in the offshore drilling vessel according to an embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

100 mud pump chamber 102 mud pump

103: cooling fan 104, 132: first and second air supply fan

106, 128: first and second vent holes 110: exhaust pipe

120: drilling deck room 122: drilling equipment

124: door pool 126: inlet

130: heating inlet pipe 140: heat exchange unit

150: heat dissipation tube

Claims (2)

A mud pump room having a plurality of mud pumps disposed therein is provided with a first air supply fan for introducing external air to one side to discharge heat emitted from the mud pump to the outside, and a first vent for discharging high temperature heat to the other side. and, A plurality of drilling equipment is disposed and includes a drilling deck chamber provided with a second inlet for discharging the internal air to the inlet is installed on one side and the other side so that hot air can be introduced to protect the drilling equipment from low temperature, An exhaust pipe connected to the first vent hole and disposed to the outside; A heating inlet pipe leading from the second air supply fan for introducing outside air to the inlet; Heat exchanger that introduces the hot air discharged from the exhaust pipe and the outdoor air introduced from the heating inlet pipe into the bore deck chamber. Drilling deck heating device using the waste heat of the mud pump in the offshore drilling vessel comprising a. The method of claim 1, Drilling deck heating device using the waste heat of the mud pump in the offshore drilling vessel is installed in the heating inlet pipe is further provided with a heat dissipation tube that can be transferred from each mud pump to transmit high-temperature heat.

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