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Hydraulic Fracturing Designs for Low Permeability Gas Condensate Reservoirs Having Different Compositions

หน่วยงาน จุฬาลงกรณ์มหาวิทยาลัย

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ชื่อเรื่อง : Hydraulic Fracturing Designs for Low Permeability Gas Condensate Reservoirs Having Different Compositions
นักวิจัย : Karanthakarn Mekmok
คำค้น : -
หน่วยงาน : จุฬาลงกรณ์มหาวิทยาลัย
ผู้ร่วมงาน : Jirawat Chewaroungroaj , Chulalongkorn University. Faculty of Engineering
ปีพิมพ์ : 2559
อ้างอิง : http://cuir.car.chula.ac.th/handle/123456789/52301
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : -
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Thesis (M.Eng.)--Chulalongkorn University, 2016

Gas condensate reservoirs have been challenging all researchers in petroleum industry for decades because of their complexities in flow behavior. After dew point pressure is reached, gas condensate will drop liquid out and increase liquid saturation near wellbore vicinity creating production loss due to the phenomenon called condensate banking or condensate blockage. Many studies indicate the damage from condensate banking in many gas condensate fields all over the world and it can be more severe if the permeability of the reservoir is low. Hydraulic fracturing in horizontal well has been proved to be a reliable method to mitigate condensate banking and to increase productivity of condensate well by means of pressure redistribution in the near wellbore vicinity. In this work, compositional reservoir simulator had been implemented to study several designs of hydraulic fracturing in low permeability condensate reservoir. The objectives of this study are to study the effect of parameters of dimensionless fracture conductivity with different fluid compositions and saturation profile near wellbore vicinity had been observed. The results indicate that fracture width has impact on controlling inertial effect. Increasing fracture width improves condensate productions in both lean and rich condensate compositions to 18.45% and 12.15% compared to non-fracture case. While, higher number of fractures allow larger contact area between fracture and reservoir and increasing condensate production to 18.45% and 11.68% in lean and rich condensate compositions respectively. Moreover, number of fractures also plays an important role in the condition of having the same Stimulated Reservoir Volume (SRV). The investigation of fracture permeability shows small benefit from increasing fracture permeability from 50,000 mD to 150,000 mD because fracture permeability at 50,000 mD is already high enough compared to reservoir permeability at 0.2 mD. In addition, from the study of condensate saturation near wellbore indicates that condensate banking can be reduced effectively with the introduction of hydraulic fracturing. Especially in rich condensate composition where revaporization occurred. The couple effect of revaporization and hydraulic fracturing has benefit on decreasing condensate banking more than considering the effect of revaporization alone.

บรรณานุกรม :
Karanthakarn Mekmok . (2559). Hydraulic Fracturing Designs for Low Permeability Gas Condensate Reservoirs Having Different Compositions.
    กรุงเทพมหานคร : จุฬาลงกรณ์มหาวิทยาลัย.
Karanthakarn Mekmok . 2559. "Hydraulic Fracturing Designs for Low Permeability Gas Condensate Reservoirs Having Different Compositions".
    กรุงเทพมหานคร : จุฬาลงกรณ์มหาวิทยาลัย.
Karanthakarn Mekmok . "Hydraulic Fracturing Designs for Low Permeability Gas Condensate Reservoirs Having Different Compositions."
    กรุงเทพมหานคร : จุฬาลงกรณ์มหาวิทยาลัย, 2559. Print.
Karanthakarn Mekmok . Hydraulic Fracturing Designs for Low Permeability Gas Condensate Reservoirs Having Different Compositions. กรุงเทพมหานคร : จุฬาลงกรณ์มหาวิทยาลัย; 2559.