Stratigraphy Drilling And Infill Drilling At Block LM For Updating Subsurface Geological Condition

Abstract

Block LM is located in Central Kalimantan, this block is one of block in the company (Suprabari Mapanindo Mineral, PT). This block regionally has located in Barito Basin and has a coal bearing formation namely Tanjung Formation. Last drilling Block LM was 2014 and the purpose drilling in Block LM was completed geological data. The data were thickness, seam, logging data, Subsurface and geological updated by detailing drilling in this area. There are 2 (two) types of drilling namely stratigraphy and infill drilling. Target of the drilling was bottom seam of pit. There was a seam that will be the bottom pit, the seam is seam 4L, but others seam is deeper than seam 4L or bottom pit will be drilled by geologist instructions for modelling data. Main seams in this block are seam 8, seam 7, seam 6, seam 51, seam 52, seam 4U1, seam 4U2, Seam 4 Series (41, 42, 43), seam 4L, seam 31 and seam 32.