Infill development strategies for Block A of Xushen gas field. (2015)

• Record Type: Journal Article
• Authors: Xu, Qinglong; Li, Haijiang; Guo, Guanghui; Zhang, Ye
• Is Part Of: International journal of oil, gas and coal technology. Volume 9:Number 4(2015)
• Page Start: 422
• Page End: 436
• Publication Date: 2015
• Subjects: Songliao Basin -- volcanic gas reservoirs -- gas development planning -- infill development strategies -- China -- gas fields -- natural gas reservoirs -- pilot wells -- rock types -- microfracture -- volcanic rock lithology -- lithofacies -- pore space -- factures -- optimisation -- layer series division -- well patterns -- gas production rate -- stable production time -- final recovery ratio; Petroleum as fuel -- Periodicals; Gas as fuel -- Periodicals; Coal -- Periodicals; Biomass energy -- Periodicals; Hydrogen as fuel -- Periodicals; 662.6
• Languages: English
• ISSNs: 1753-3309

Abstract

Along with the enhancement of oil and gas exploration technologies, a large scale of natural gas reservoir of volcanic rock was discovered deep in the north of Songliao Basin of China. The gas reservoir has several distinct features such as diversified rock types, complex lithology, fast change of lithofacies, existence of micro-fractures, poor rock physical properties and strong heterogeneity, etc. Then a multidisciplinary method was used to evaluate the volcanic rock lithology and lithofacies, validity of matrix and fractures, types of pore space and its connection to factures. Based on above mentioned studies, optimisation was carried out on the development mode, layer series division, well pattern and its interspacing, gas production rate, stable production time and final recovery ratio. Also, a reasonable development programme was made. In order to reduce the risk in this programme, such development strategies which proved to highly efficient and have yielded good results were adopted as the overall deployment and successive implementation, pilot well infilling test in priority at local area, highlighted trace evaluation and timely adjustment. [Received: October 29, 2012; Accepted: July 12, 2013]