Studi Laboratorium Pengaruh Penambahan Bubuk Tulang Sotong sebagai Bridging Agent pada Lumpur Pemboran

Fatma, Fatma

Jurnal Teknik Industri Terintegrasi (JUTIN)
Vol. 8 No. 4 (2025): October

During drilling operations, when the reservoir zone is penetrated, the rock formation generally has high porosity and permeability, which can cause lost circulation. To overcome this problem, a bridging agent in the form of calcium carbonate (CaCO₃) is used because it is acid soluble and can temporarily seal the formation pores. Cuttlebone is known to contain a high amount of CaCO₃, so it has potential as an alternative bridging agent. This study aims to evaluate the effectiveness of CaCO₃ derived from cuttlebone as a bridging agent in drilling fluid. The evaluation was carried out through filtration tests and observation of mud cake characteristics. The test results show a low filtrate volume of 4.8–6 mL within 30 minutes and created thin and compact mud cake with an average thickness of 0.398-0,794 mm. These results indicate that CaCO₃ from cuttlebone is effective in sealing formation pores and preventing lost circulation in the productive zone.