At first section, Mr. Sugeng gave the lecture
about Basic Mud-logging Engineering and its Role in the Oil
Industry. He explained that mud-logging work when the drilling is in progress and
monitored 24 hours in a day. Mudlogging crew officiate to operate
mud-logging unit, monitoring drilling, collecting and evaluating data. The
contribution of mudlogging is make drilling saver, faster,
and cheaper. There are more 20 sensors which be installed
in mudlogging tool.
Mr. Sugeng also explained that drilling is the
activity to make a hole. It is the only one way to proof
interpretation from seismic method and the other data included mudlogging about
existence of oil and gas in subsurface. There is no instrument
available which indicate the presence of oil and gas in subsurface. But by well log data about
cutting samples and its oil
content and gas reading, electric log data, and the contents of fluids such as gas, oil, or water
will be recovered. In drilling process there are
three main system, hoisting system, rotating system, and circulating system.
The drilling process is done step by step and there are about seven casing
design.

There are some problems can happen when
the drilling in process. The problem can be caused by the hole,
mecanics, or non-technical factors. In this section we were
explained about blowout in Panji well Porong, Sidoarjo which caused eruption of mud
vulcano. As we know, the eruption of mud has continue until now. According
to Mr. Sugeng’s, that incident was caused by human error. There was mistake
when drilling in progress. This mistake was in mudlogging data reading and
cementing.
In second section, Mr. Made shared his experience about Wireline Formation Testing
(SFT). He explained that there are some test in wireline formation testing and sampling.
They are RFT
(Repeat Formation Tester), MDT (Modular Dynamic Formation
Tester), RCI (Reservoir Characterization Instrument), FMT (Formation Multi Tester) and SFT (Sequential Formation Tester). From the test we will know some information such as type, location, and prospect of fluids,
condition of the zone, and type of rock in the well. The answer of logging will
provide water
saturation, hydrocarbon mobility, hydrocarbon type, permeability, lithology, structure, images,
and rock/
fluid samples (PVT) underground.
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