Drilling water well at Tenosique Tabasco

Water Well Drilling
Alex Armando Méndez Pérez
Petroleum Engineering, Universidad Politécnica Mesoamericana
English VIII
L.I María Elena Ramirez Pérez
February 23, 2022
Contents
Drilling the wellbore
3
Results
Density and viscosity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Annular and pipe volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5
5
5
Water Well Drilling
3
Drilling the wellbore
Table 1
At the beginning of the activities, December
6Th 2021, first of all the groundwork was the principal
objective then set up all the equipment was the second activity, next was the installation of the bomb and
make the line for the flow, this way the flow line for
the perforation mud was ready, thus the perforation
can start, some components are shown in fig 1.
Table 1 shows the length of the drilling pipes
that was used, 40 pipes was used to reach the objective.
For the fluid properties measurements a densimeter
and a marsh funnel viscosimeter was used, shown in
fig 2
Figure 1
Rotary drilling equipment
Figure 2
Viscosimeter and densimeter
Drilling pipe length
Pipe number
Length (cm)
1
150.7
2
149.8
22
144.1
3
148.5
23
144
4
150
24
144.7
5
148.5
25
150.2
6
149
26
149.7
7
150
27
140.5
8
149.3
28
149.9
9
151
29
149.3
10
151
30
149.9
11
151
31
149.8
12
151
32
148.6
13
151
33
149.7
14
150.2
34
149.8
15
150.9
35
149
16
150.5
36
149.4
17
160.8
37
149.8
18
161
38
149.5
19
161.3
39
149.8
20
159.9
40
110.7
21
163.3
The drilling activities continued until the 3rd
day of the process without something unexpected,
60.341m was reached at the 3rd day and the the preparations for the final period was made.
The last day was prepared the casing because
needed to have the appropriate characteristics to be
tripping in as shown fig 3, then an gravel pack was
installed fig 4 and a 1 hp power submersible pump
with a net head of 113m fig 5that was installed at 43m
depth. Finally the well started flowing first to clean
the waste drilling, then a better looking water started
flowing from the well.
Water Well Drilling
Figure 3
Figure 4
Casing
Installing gravel pack
Figure 5
Submersible pump
Table 2
Casing length
Pipe number
Length (cm)
1
578.4
2
580.6
3
581.4
4
580
5
581.3
6
580.1
7
578.6
8
580.5
9
578.9
10
581.6
11
240
Table 2 shows the length of the casing.
The total length of all the casing does not
match the total length of the pipe length because it
was necessary to set a section for install later the production line and to closed the well.
Figure 6
8 3/8” Drill bit
4
Water Well Drilling
Results
5
Annular and pipe volume
The characteristics of the fluid and well measurement during the drilling are shown below.
Density and viscosity
The values for this properties were taken at
constant depths (each 5m) and are shown in table 3,
some of the values were approximates due to lack of
information.
Table 3
Density and viscosity of the drilling fluid
Depyh (m)
Density (g/cm3)
Viscosity
0
1.12*
24.22*
5
1.14
25.07
10
1.16
25.92
15
1.2
28.23
20
1.22
26.77
25
1.2
26.52
30
1.19
26.87
35
1.24
27.54
40
1.23
29.46
45
1.24
32.1
50
1.20*
27.61*
55
1.20*
27.61*
60.341
1.20*
27.61*
Note. The approximate values are indicated for
the symbol *
In this section is shown how the annular volume Vas an inside pipe volume Vp were calculated, it
is important to note that the total depth was 60.341m,
pipe diameter 2 3/8” (2.374”), inner diameter 1 1/4”
(1.25”) and diameter drill bit 8 3/8” (8.375”), using the
equation (1) and equation (2)
Vas = 0.5067(d22 − D12 )h
(1)
Where
D:
d:
h:
Vas
pipe outer diameter (in)
drill bit diameter (in)
depth (m)
annular volume (Lt)
Vp = 0.5067(d2 )h
(2)
Where
d:
h:
Vp
inner pipe diameter (in)
depth (m)
annular volume (Lt)
First Vas is calculated using (1) and by substituting
gives:
Vas = 0.5067(8.3752 − 2.3752 )60.341
Resolving:
Vas = 1972.07
( Lt)
(3)
Second Vp is calculated using (2):
Vp = 0.5067(1.252 )60.341
Resolving:
Vp = 47.77
( Lt)
(4)
Water Well Drilling
References
6