Suhascaryo, KRT. Nur (2011) THE EFFECTS OF CLINO TOBERMORITE MINERAL FOR LIGHT WEIGHT CEMENT ON SIMULATOR CURING CHAMBER CONDITION. JIK TekMin (Jurnal ilmu Kebumian Teknologi Mineral), 24 (1). pp. 1-9. ISSN 0 8 5 4 - 2 5 5 4
|
Text
1. EDIT The Effects of Clino Tobermorite Mineral.._compressed (1).pdf Download (344kB) | Preview |
Abstract
ABSTRACT The cement slurry to be set on bore hole wall arround of casing string, and so hardenner. On the bottom hole condition changers (based on simulator curing chamber), the characterization of cement such of changer strength, porosity, C/S ratio and caused mineralization. For the anticipated that conditions, the cement slurries to be added lightweight aditive (expanding and microsphere ceramics local), so results of characteristic cement is good (permeability, density, rheology, and strength). Results of the research are cement hardener good because any changes of mineralization tobermorite to clino tobermorite, by density 11-12 ppg (based on 15.8 ppg), thickening time 2 hours at 70-100 uc, so thats results can be applied on offshore oil and gas or geothermal fieldsKeywards :The cement slurry, bore hole, expanding additive, strength retrogression additive, lightweight additive ABSTRAKSemen pemboran diset didasar lubang sumur antara pipa selubung dan dinding lubang bor. Semen tersebut kemudian mengeras dan mengalami beberapa perubahan karaterisasi sifat fisik seperti strength, permeability, porositas, C/S ratio dan mineralisasi akibat perubahan kondisi lubang bor yang disimulasikan pada simulator curing chamber. Untuk mengantisipasi perubahan tersebut diperlukan tambahan aditif pengembang yaitu expanding additive, aditif pencegah strength retrogression, dan aditif lightweight cement Parameter yang didapat adalah besamya permeabilitas semen membatu, densitas semen slurry dan rheology, jenis mineral semen membatu, dan kekuatan gaya geser atau shearbond strength.Hasil penelitian temyata adanya perubahan bentuk kristalisasi mineral pencegah strength retrogression dari tobermorite ke clino tobermorite, dan gradient tekanan yang terjadi berkisar 11-12 ppg, dibanding gradient yang umum digunakan sebesar 15.8 ppg, dengan thickening time sekitar 2 jam pada harga 70-100 uc. Hasil penelitian tersebut dapat digunakan pada daerah lapangan migas lepas pantai dan pada lapangan panasbumi.Kata kunci: Semen pemboran, lubang bor, aditif pengembang, aditif pencegah, aditif lightweight.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Keywards :The cement slurry, bore hole, expanding additive, strength retrogression additive, lightweight additive Kata kunci: Semen pemboran, lubang bor, aditif pengembang, aditif pencegah, aditif lightweight. |
| Subjects: | Q Science > Q Science (General) |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Engineering Sciences |
| Depositing User: | Dr. Ir. MT KRT. Nur Suhascaryo |
| Date Deposited: | 07 Nov 2020 12:26 |
| Last Modified: | 07 Nov 2020 12:26 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/23853 |
Actions (login required)
 |
View Item |