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"Kegiatan eksplorasi saat ini semakin gencar dilakukan. Teknologi pun mengiringi dengan berkembang sangat pesat. Pendorong sliding rig sebagai salah satu alat yang dianggap lebih efektif dan murah dibandingkan melakukan rig up dan rig down untuk memindahkan rig pada sumur berjenis cluster well yang berjarak antar sumur 10-20 m . Kelebihan penggunaan sliding rig dibanding dengan tidak menggunakan sliding rig dalam memindahkan rig adalah proses pemindahan rig menjadi lebih cepat karena tanpa melakukan pembongkaran rig. Ada dua tipe alat pemindah rig, yaitu rig walker dan sliding rig. Di Indonesia, sliding rig lebih aman untuk digunakan karena operasinya yang mudah dan murah. Salah satu sistem dalam pendorong sliding rig adalah sistem hidrolik. Sistem ini memiliki fungsi sebagai komponen utama untuk mendorong rig. Adapun yang perlu diperhatikan dari sistem hidrolik adalah material lower dan upper load (pony sub pada rig dan H-beam), spesifikasi sistem pelumasan pada komponen yang bergesekan (pony sub dan H-beam), spesifikasi dan aksesoris hidrolik, analisis stabilitas rig ketika dipindahkan oleh pendorong sliding rig, spesifikasi konfigurasi sistem hidrolik, dan pemilihan material dan dimensi H-beam.

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Exploration activities currently carried out more intensively. The technology was accompanied by growing very rapidly. Sliding rig pusher is the one of the tools that are considered far more effective and cheaper than doing rig up and rig down to move the rig for the cluster wells that the distance between wells is about 10-20 m. Advantages of use of a sliding rig if it is compared to not using a sliding rig pusher to move the rig is the process of moving rig to be faster because without disassembling rig. There are two types of a transporter rig, that is rig walker and sliding rig. In Indonesia, a sliding rig is safer to use because its operation is easy and inexpensive. One of the systems in the sliding rig is hydraulic system. This system has a function as the main component driving rig. As to consider are lower and upper load material rig (pony sub rig and H-beam, lubrication system for parts that rub against each other, specification of the hydraulic system, rig stability analysis when the rig is moved by sliding rig pusher, hydraulic system configuration, the selection of H-beam dimension and material."

"Any events presumed to risk the safety of a nuclear reactor should be analyzed. In a research reactor, the applicability of best estimate thermal-hydraulic codes has been assessed for safety analysis purposes. In this paper, the applicability of the RELAP/SCDAPSIM/MOD3.4 thermal-hydraulic code to one Indonesian research reactor, which is named TRIGA-2000, is performed. The aim is to validate the model and use the model to analyze the thermal-hydraulic characteristics of TRIGA-2000 for main transient events considered in the Safety Analysis Report. The validation was done by comparing the calculation results with experimental data mainly in steady state conditions. The comparison of calculation results with the measurement data showed good agreement with little discrepancies. Based on these results, simulations for thermal-hydraulic analyses were performed for loss of coolant transients. The calculation results also properly depicted the physic of the thermal-hydraulic phenomena following the loss of coolant transients. These results showed the adequacy of the model. It could be shown that the engineered safety features of TRIGA-2000 play an important role in keeping the reactor safe from the risk of postulated loss of a coolant accident."