Unconventional/complex reservoirs

Fracture Characterization Explores Potential of Phra Wihan Formation, Thailand

The authors of this paper describe the characterization of fractures in the Mesozoic sandstones of the Phra Wihan Formation exposed at the southern part of Uttaradit Province in Thailand.

Location of study outcrops in Uttaradit province, northern Thailand. Panoramic view of each outcrop location.
Location of study outcrops in Uttaradit province, northern Thailand. Panoramic view of each outcrop location.
IPTC 22845.

The complete paper describes the characterization of fractures in the Mesozoic sandstones of the Phra Wihan Formation in northern Thailand. Fracture characterization of outcrop analogs is important to determine the potential of subsurface reservoirs. The methodology used field study and petrography analysis to determine the relationship of fractures and other structures such as bedding planes and fold geometry. In addition, microstructure analysis can assist in the evaluation of a reservoir’s potential.

Introduction

Basement reservoir sandstones are one of the main targets in a mature onshore oil field in Thailand.

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