The Agent Technologies for Efficient Development of Moxi T2l11 Gas Reservoir

doi:10.11885/j.issn.1674-5086.2020.02.23.01

Abstract

Abstract: In view of the problems of thin effective thickness, poor permeability and natural gas sulfur content in the Moxi T₂l₁¹ gas reservoir, the related researches on the description of fine gas reservoirs and the safe production of downhole pipelines are carried out. In order to confirm the effective thickness and physical properties of reservoirs in Moxi T₂l₁¹ gas reservoir, a combination of logging data and seismic information is adopted to form the integrated 3D geological modeling-reservoir simulation process.Accurate division of layers and identification of sweet spots in reservoirs have resulted in the development of high efficiency gas reservoir technology, such as open hole multistage acidizing technology, horizontal wells and well pattern optimization technology. In view of the serious corrosion and blockage of downhole pipes, the life evaluation of downhole tubing and FRP tubing has been carried out, and the preventive replacement of tubing has been adopted, formed the workover (to extent eroded wells life span) and surface system optimization technology. Development practice has indicated that T₂l₁¹ gas reservoir maintains stable production of more than 25 years by successful application of efficient development technologies described above, setting an example as an efficiently developed low-permeability gas reservoir. This field has a gas production of 11 billion cubic meters, showing a good development effect.

Key words: Moxi T₂l₁¹ gas reservoir, synthetic seismograms, horizontal well, wellbore corrosion, staged acidizing, pressurization production

CLC Number:

TE37

HE Xiaochuan, OU Jiaqiang. The Agent Technologies for Efficient Development of Moxi T₂l₁¹ Gas Reservoir[J]. 西南石油大学学报(自然科学版), 2020, 42(4): 144-154.

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The Agent Technologies for Efficient Development of Moxi T₂l₁¹ Gas Reservoir

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