Study of Hydraulic fracturing in water dominated Geothermal field using experimental design and numerical simulation

7th ITB International Geothermal Workshop

Judawisastra, Luthfan Hafizha^1 ; Pratama, Heru Berian^1 ; Saptadji, Nenny Miryani^1

Petroleum Engineering Study Program, Institut Teknologi Bandung, Indonesia Jl. Ganesha No. 10, West-Java-Bandung

40132, Indonesia^1

关键词: Field application;    Fracture half-length;    Fracturing parameter;    Geothermal reservoir;    Polynomial equation;    Probabilistic simulation;    Reservoir parameters;    Uncertainty parameters;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/254/1/012020/pdf
DOI  :  10.1088/1755-1315/254/1/012020

来源: IOP

【 摘 要 】

As a water-dominated geothermal field continues in operation, production rate and pressure will decrease. To enhance production rate, hydraulic fracturing stimulation is normally conducted. This fracturing stimulation is not always successful due to reasons related to the uncertainty of numerous design and reservoir parameters. This study is conducted to answer the uncertainty of hydraulic fracturing parameters problems specifically in a water-dominated geothermal reservoir by means of extending the experimental design for geothermal field applications. In this study, experimental design will be applied to study the uncertainty parameters of hydraulic fracturing stimulation in a water dominated reservoir using CMG STARS simulator followed by statistical analysis using MiniTab software and performing Monte Carlo probabilistic simulation. The result provides necessary steps to conduct hydraulic fracturing study in CMG STARS and proxy polynomial equation that well describes mass rate response output. This study also concluded that fracture half-length appears to have the highest effect on mass rate even it is not too different from the other two parameters. Last, the most probable mass rate output is estimated to be 124 kg/s which is 7.1 times higher than the base case mass rate. The first section in your paper.