Volume 03 Issue 08-2023
20
American Journal Of Applied Science And Technology
(ISSN
–
2771-2745)
VOLUME
03
ISSUE
08
Pages:
20-27
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
(2023:
7.063
)
OCLC
–
1121105677
Publisher:
Oscar Publishing Services
Servi
ABSTRACT
Reducing the time of prospecting and exploration of mineral deposits and the beneficial use of heat from drilling
equipment in geological exploration, analysis of energy production and its consumption, and reduction in fuel and
energy consumption has great scientific and practical importance.
This article presents the valuable use of energy in the form of heat released during the operation of the internal
combustion engine of a diesel power plant used in drilling operations, and its consumption.
KEYWORDS
Diesel power plant, heat, thermal energy, internal combustion engine, fuel energy, energy losses, drilling, heat
consumption, energy losses.
INTRODUCTION
Today, at a time when the cost of energy resources is
rising all over the world, the exception is that
secondary energy resources in the form of flue gases
from
internal
combustion
engines
used
in
technological processes are emitted into the
atmosphere without valuable use. Internal combustion
engines that do not use secondary energy resources in
the form of heat are economically inefficient and
wasteful machines, since the thermal energy released
from the internal combustion engine to the
atmosphere can be usefully reused through a number
of systems.
It is possible to reduce the cost of energy
resources by using the heat generated from the
Research Article
DEVELOPMENT OF TECHNICAL SOLUTIONS FOR FAVORABLE USE OF
THE HEAT OF DRILLING EQUIPMENT WHEN CLEANING WELLS WITH
WASHING LIQUIDS
Submission Date:
August 20, 2023,
Accepted Date:
August 25, 2023,
Published Date:
August 30, 2023
Crossref doi:
https://doi.org/10.37547/ajast/Volume03Issue08-05
Juraev R.U.
Phd.Prof., Navoi State Mining And Technological University, Navoi, Uzbekistan
Raikhanov Sh.Z.
Almalyk Branch Of The Tashkent State Technical University, Almalyk, Uzbekistan
Journal
Website:
https://theusajournals.
com/index.php/ajast
Copyright:
Original
content from this work
may be used under the
terms of the creative
commons
attributes
4.0 licence.
Volume 03 Issue 08-2023
21
American Journal Of Applied Science And Technology
(ISSN
–
2771-2745)
VOLUME
03
ISSUE
08
Pages:
20-27
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
(2023:
7.063
)
OCLC
–
1121105677
Publisher:
Oscar Publishing Services
Servi
exhaust gases of the internal combustion engine and
the radiator of the cooling system for heating
technological and utility buildings, hot water supply
and other needs.
When carrying out drilling operations, it is required to
maintain optimal operating modes of drilling
equipment, a diesel power plant or other equipment
while utilizing the heat of the cooling system of internal
combustion engines, the heat of flue gases from
engines and other energy sources that are lost in the
form of heat. That is, when using useful heat recovery
systems, this should not affect the operation of
technological equipment, but, on the contrary, should
facilitate the operation process and reduce energy
consumption.
Today, drilling organizations in our country carry out
drilling operations mainly in two different areas, the
first direction is cleaning wells with flushing fluids, the
second is cleaning wells with compressed air.
The method of drilling wells by cleaning them with a
flushing liquid is widespread and accounts for an
average of 65% of the total drilling work in our country.
The method of cleaning and drilling the formation with
the help of air is used in complex mining, geological
and technological conditions and is 30-35%.
In the following, we have developed a device for
efficient use of the heat of the internal combustion
engine of a drilling rig for both drilling methods, i.e.
fluid drilling and air drilling.
To begin with, consider the process of cleaning and
drilling the tank using flushing fluid, this process is
shown in Figure 1.
1-drilling equipment, 2-drilling equipment guide, 3-rotor, 4, 11-pump, 5-swivel-stuffing box, 6-well, 7-drill pipe, 8-
chisel, 9-hermitizer, 10, 12-sump, 13-additional water pipe.
Volume 03 Issue 08-2023
22
American Journal Of Applied Science And Technology
(ISSN
–
2771-2745)
VOLUME
03
ISSUE
08
Pages:
20-27
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
(2023:
7.063
)
OCLC
–
1121105677
Publisher:
Oscar Publishing Services
Servi
Figure 1. The process of drilling wells by cleaning them with drilling fluid.
After starting the drilling equipment (1), the pump (4)
with the help of a rotary valve (5) pumps the flushing
fluid through the drill pipe (7) into the reservoir, and
the drive (2) drives the rotor (3). . The flushing liquid
cools the drill bit (8) and moves up along the annulus
between the wellbore (6) and the drill pipe (7), and the
hermitizer (9) directs the liquid to the settling tank (10),
liquid sludge settles in the settling tank, then the pump
( 11) pumps liquid into the second sump (12). The pump
(4) pumps liquid from the sump (12) to the swivel-
stuffing box. During the drilling process, 12-15% of the
drilling fluid volume is lost, so the fluid volume is
constantly provided with the help of an additional
water supply (13).
The drive of the drilling rig consists of a diesel power
plant and electric motors, a large amount of energy is
released in the form of heat from the internal
combustion engine of the diesel power plant with flue
gases and through the radiator of the cooling system,
that is, 55-65% of the fuel is thermal energy emitted into
the atmosphere.
In the process of drilling a well with flushing fluid, we
have developed a device, a schematic view of which is
shown in Figure 2, for the beneficial utilization of heat
generated from the internal combustion engine of
drilling equipment. The electrical energy generated in
the thermoelectric generator set is used by wires (14)
to accumulators or for other economic and
technological needs.
1. Drilling equipment, 2. Internal combustion engine, 3. Engine cooling radiator, 4. Fan, 5. Heat exchanger, 6. Cold
water pipeline, 7. Hot water pipeline, 8. Pump, 9. Muffler, 10. - flue gas transfer pipe, 11-thermoelectric generator set,
Volume 03 Issue 08-2023
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American Journal Of Applied Science And Technology
(ISSN
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2771-2745)
VOLUME
03
ISSUE
08
Pages:
20-27
SJIF
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MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
(2023:
7.063
)
OCLC
–
1121105677
Publisher:
Oscar Publishing Services
Servi
12- flue gas transfer pipe, 13 and 14-valves installed in the chimney, 15-pump, additional water supply (sub-feed)
transferred to the sump 16, 17-thermoelectric generator set connected wires.
Figure 2. A device for the useful recovery of heat from an internal combustion engine of drilling equipment.
The device for useful heat recovery of the internal
combustion engine of drilling equipment (Fig. 3.5)
works as follows. After starting the drilling equipment
(1), the flue gases of the internal combustion engine (2)
are transferred from the muffler (9) through the pipe
(10) to the thermoelectric generator unit (11) and
heating the thermoelectric generators through the
pipe (12) from the valve (13) is transferred to the heat
exchanger (5), while the flue gases from the
thermoelectric power plant are not connected to the
heat exchanger and are released into the atmosphere
through the valve (14). In the block of thermoelectric
generators, thermoelectric generators operating on
the basis of the Seebeck effect are installed, and when
one side of them is heated, and when the other is
cooled, they generate electricity due to the
temperature difference.
The pump (15) pumps cold water from the sump to the
block (11) for cooling the two sides of thermoelectric
generators, and then the heated water is sent through
the pipe (16) to the sump. Cold water is supplied by a
pump (8) to cool the heat exchanger (5), and heated
water is sent through a branch pipe (7) for use for
household and technological needs.
During drilling operations in aggressive conditions, the
heat exchanger (5) has a shell-and-tube design, which
facilitates its operation. That is, they are easy to
manufacture, easy to operate and repair, and cleaning
and repair are not difficult in conventional workshops.
In such heat exchangers, heat transfer is carried out by
separating the primary and secondary heat carriers
separately, a general view of which is shown in Figure
3.
Figure 3. Shell and tube heat exchanger
Volume 03 Issue 08-2023
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American Journal Of Applied Science And Technology
(ISSN
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2771-2745)
VOLUME
03
ISSUE
08
Pages:
20-27
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
(2023:
7.063
)
OCLC
–
1121105677
Publisher:
Oscar Publishing Services
Servi
The Seebeck effect used in the thermoelectric generator block can be explained with Figure 4 below, in which an
electrical force is generated when one side of the ceramic plates is exposed to high temperature and the other side
to low temperature.
Figure 4. Seebeck effect.
In the block of thermoelectric generators used in the device for useful heat recovery of the internal combustion engine
of drilling equipment, the Pelte module is used, its view is shown in fig. 5.
Volume 03 Issue 08-2023
25
American Journal Of Applied Science And Technology
(ISSN
–
2771-2745)
VOLUME
03
ISSUE
08
Pages:
20-27
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
(2023:
7.063
)
OCLC
–
1121105677
Publisher:
Oscar Publishing Services
Servi
Figure 5. Pelte module.
The effective use of thermoelectric generators in the proposed device for useful utilization of the heat of the internal
combustion engine of the proposed drilling equipment presents some technical difficulties, i.e. heating one side due
to the secondary energy of the internal combustion engine and cooling the other side without the use of additional
energy requires the development of new technical solutions. Therefore, the design of the thermoelectric generator
block was developed, shown in Figure 6.
A
B
1. Pipe, 2. Hermitizing plate of thermoelectric generators, 3. Shell, 4. Thermoelectric generator, 5. and 6. Inlet and
outlet pipes of cooling water.
Figure 6. Constructive structure (A) and general view (B) of a thermoelectric generator.
Volume 03 Issue 08-2023
26
American Journal Of Applied Science And Technology
(ISSN
–
2771-2745)
VOLUME
03
ISSUE
08
Pages:
20-27
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
(2023:
7.063
)
OCLC
–
1121105677
Publisher:
Oscar Publishing Services
Servi
The thermoelectric power plant is arranged in the
following order: there is a pipe (1) for the movement of
flue gases, thermoelectric generators (4) are installed
on the pipe, it is sealed from above with a round
tubular plate (2) and a shell of a large diameter pipe (3)
is enclosed in it. An annular gap is left between the
plate (2) and the shell (3) for the movement of water.
Branch pipes 5 and 6 are installed in the div to ensure
the movement of cooling water. This unit operates in
the following order, when the flue gases move through
the pipe (1), it heats the thermoelectric generators
installed on it, the cooling water is transferred from the
pipe (5) to the space between the shells (3). and the
plate (2), after the thermoelectric generators are
cooled, the heated water is discharged through the
pipe (6), so that the circulation of the cooling water
continues continuously during operation.
A distinctive feature of the heat recovery device of the
internal combustion engine of drilling equipment
shown in figure 2 above is that the activation of the
thermoelectric generators used in it requires exposure
to different temperatures on both sides, which leads to
a large consumption of thermal energy, so their
efficiency is low. However, in the proposed device, the
secondary energy of the internal combustion engine,
i.e., the energy lost to the atmosphere, is used to heat
the thermoelectric generator.
The water used to prepare and consume the drilling
fluid is also used for cooling. This, in turn, makes it
possible to save energy spent on cooling and receive
hot water for preparing and maintaining the
temperature of the drilling fluid in the cold season.
The electrical energy generated in the thermoelectric
generator can be used to illuminate areas where
drilling is being carried out, to provide energy for
measurement and control devices, and also to
accumulate the generated energy. This, in turn, leads
to a decrease in the energy intensity of drilling
operations and an increase in work efficiency.
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Volume 03 Issue 08-2023
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American Journal Of Applied Science And Technology
(ISSN
–
2771-2745)
VOLUME
03
ISSUE
08
Pages:
20-27
SJIF
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MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
(2023:
7.063
)
OCLC
–
1121105677
Publisher:
Oscar Publishing Services
Servi
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