This report summarizes Ali J. Jani's petroleum engineering field trip to the Chu Huang Keng oil field in Miaoli County, Taiwan. The trip included visits to the Taiwan Oil Field Exhibition Hall, the China Petroleum Corporation (CPC) Research Center, and an active production well site. At the research center, the group learned about CPC's focus on carbon dioxide sequestration and enhanced oil/gas recovery techniques. They observed core sampling processes and permeability/porosity tests. At the well site, they watched maintenance replacing production tubing. The petroleum museum provided historical context of oil drilling in Taiwan and displayed rig platforms. Overall, the trip provided valuable insights into Taiwan's pet

1. Ali J. Jani
N46037013
Petroleum Engineering: Final Report
Miaoli Chu Huang Keng Trip
25 December 2014
Orientation and History
The Chu Huang Ken 出磺坑 (Chinese) is a
part of Gongguan Township in Miaoli
County (figure 1), and is of the most
important areas where drilling for oil
and natural gas has a history of more
than one hundred years. Oil has been
drilled since the Qing dynasty rule of
Taiwan in 1877, then it was then the
more advanced development stage
came through the Japanese when
they drilled around 98 oil wells. The
original site of the first oil well in
Taiwan has now turned into
the Taiwan Oil Field Exhibition Hall,
which also was a part of the
trip. Nowadays oil exploration in
Taiwan is controlled by the China
Petroleum Corporation (CPC). Deep
drilling in Taiwan began in 1959 when
the CPC drilled to a depth up to 4,063
meters which they brought out more
than 110,000 m3
of natural gas and
10,000 liters condensate daily.
Figure 1, Chu Huang Keng area
Figure 2, Petroleum Museum

2. Observations & Info
CPC Research Center, is only
advanced petroleum research
institution under the CPC Corporation
that has continuous contribution to oil
and gas industry in Taiwan, two of
their finest engineers explained the
most recent research topics (priority)
for the next few years. CPC is mainly
concentrating on Carbon dioxide
sequestration for the current time,
and is carrying over with some
traditional topics (figure 3) such as environmental risk prevention, and
protection, also Enhanced Gas/Oil Recovery and chemical flooding research is
running.
While the visit, the first stop was the core
treatment and storage center, and then
laboratory facilities in the next building. Through
these two important divisions, we understood
the importance of core archiving and had seen
many different sedimentary rock samples, as
well as rock sampling process, permeability and
porosity tests (figure 4), casing and cementing,
and finally circulation system precesses, most
importantly, how the mud is made for specific
pressures.
Throughout the visit we CPC personnel were
great help on field, where replacement of
production tubing for a gas well was on
procedure (figure 7). This was the first time on
rig site platform. However the process was on
hold due to problems (cuttings or remaining of
heaving were inside the casing) occurred while
tripping out the tubing. Some engineers were
calculating the density of the mud required to
push the undesired objects ot of the well.
Figure 3, CPC Exhibition Hall, research topics
Figure 4, CPC research center, Core
Permeability and porosity test device

3. Second station was the petroleum
Museum (figure 2), where
introduction to Chu Huang Keng’s
history and present was done
through a short video, and also as in
the given figures showing, we had a
detailed tour inside the museum to
see how Taiwan geology is formed
and that the reason behind the
concentration of drill sites on a
vertical line (north to south), is
mainly related to formation beneath
the island. Moreover, the exhibition
hall did also contain various types of
rig platforms on and offshore (figure
8 & 9). Finally drilling equipment and
various drilling bits for different
purposes were also shown.
Finally, we have visited an on
production well which produced from
two different layers, therefore as
shown in the picture, the well head equipment
(WHE) were coated with two (red & yellow)
colors (figure 10 & 11). There also have been
separation and heat treatment equipment
installed by the well, the process as explained
by the CPC Engineer was as following: the gas
was produced by constant rate by controlling
well head valves, it was obvious that the gas
was out flowing, and it was heating up the
pipes to a certain amount of temperature.
Natural gas then was directed to the separator
where water and condensate are departing the
gas. Finally the gas is going through heating
process when passing through the
depressurization, mostly because of the cooling process when gas expands.
Figure 5, CPC research center, Core archiving room
Figure 6, CPC research center, Core different tyupes of
core
Figure 7, CPC Rig site, production tubing
maintenance

4. Personal Feedback
This trip did include many details that unfortunately a single day trip wouldn’t
be enough to record all the information through. However this was a unique
experience that opened my eyes and pushed me forward to keep digging for
more knowledge in the industry and for oil itself (someday). Finally I’d like to
thank professor Hsieh for organizing this trip, and all the seniors responsible
in the coordination process.
Figure 9, Taiwan petroleum museum, drilling bitsFigure 8, Taiwan petroleum museum, offshore
platform
Figure 10, CPC multilayer
production WHE
Figure 11, CPC gas separator