Duct Pipe Optimation For Geothermal Fluid In Water Dominated Reservoir

Eko Widi Prarnudiohadi, Eko and Sayogi Sudarman, Sayogi (2001) Duct Pipe Optimation For Geothermal Fluid In Water Dominated Reservoir. The 5th Indonesia Geothermal Association Annual Scientific Conference & Exhibitions.

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A single pipe model for simulating the flow of geothermal fluid in a well, in a two phase flow line and in a steam line is used to determine optimum diameter of casing, two phase line, steam line as well as optimum thickness of insulator. The inlet parameters such as pressure, temperature, diametex. mass flow and steam quality are the main factors which influencethe press lire loss are used as a basis of main optimization. There are two problems. Thefirst is production restriction and the second is investation of dUCIpipe that has cost limitation. Bothproblems can be solved by doing the optimization of dUCIpipe, involving the technical and economical aspects. WeliSim simulator is used 10 predict the pressure loss in the bottom hole and surface, and on the other way around. The output,namely pressure, mass flow rate, temperature, dryness and enthalpy of the wellhead are used as input data for PipeSim. PipeSim is a simulator used for calculating the pressure loss in the surface and then they are used 10 calculate power output from turbine and net present value. PipeSim simulator provides the parameters to determine optimal ion. In the present study data of well Sibayak-05 (Sibayak field) is used for determining optimum diameter of casing, surface line and insulation optimum thickness. The res lilt shows that optimum production casing diameter is /3-318 in, inside diameter of two phase ductpipe is 0.5368 m (outside diameter is 0.5588 m), insulation pipe of two phase flow is 2 em, inside steam pipe diameter is 0.2476 m (outsidediameter is 0.2731 m), pipe insulation thickness for steam flow is 7.5 em.

Item Type: Article
Subjects: T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User: ST, MT Eko Widi
Date Deposited: 23 Sep 2016 01:54
Last Modified: 23 Sep 2016 01:54
URI: http://eprints.upnyk.ac.id/id/eprint/3015

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