The Effects of VICOIL Bopanprog Usage as a Substitute for Crude Oil for Oil-Based Drilling Fluids


  • KRT Nur Suhascaryo Universitas Pembangunan Nasional Veteran Yogyakarta
  • Susila Herlambang Universitas Pembangunan Nasional Veteran Yogyakarta
  • Hiras Pasaribu Universitas Pembangunan Nasional Veteran Yogyakarta



Oil Base Mud, VICOIL, Shale


The use of water-based mud often faces some difficulties in dealing with shale zones, which can cause shale problems. Oil-based mud has better performance than water based mud in overcoming shale problems. However, oil-base mud can cause unfavorable environmental impacts, and it is more costly than water base mud. Various efforts were made to find oil base mud materials that are environmentally friendly and do not cost too much money but still function as a standard oil-base mud with all its advantages compared to water-based mud. Oil-based mud by using VICOIL Bopanprog as its liquid phase is expected to be a substitute material for oil-based mud. The first test is to analyze the shale content of the cutting samples, which will be tested on the designed mud by using MBT and XRD. From the results of these tests, we can find out the potential shale problems that will occur. Then we can determine the correct mud composition to prevent the shale problem from happening. To determine the physical and rheological properties of the designed mud, tests are carried out in the laboratory. After meeting the testing standards, the mud filtrate is tested to the cutting sample that has been analyzed at the beginning to determine its performance in overcoming shale problems. From the research results, the use of VICOIL Bopanprog oil-based mud has met the normal oil base mud standard, and it is able to overcome clay swelling caused by smectite and illite minerals from the tested cutting samples. However, in testing, the cutting samples also contain kaolinite minerals, which tend to cause sloughing problems. OBM VICOIL also has good mechanical, hydraulics, and or properties of drilling mud to prevent shale sloughing.


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