关键词: 碳酸盐岩, 储集层评价, 气测录井, 储集空间, 录井综合评价, 流体性质, 物性评价

Abstract:

The target bed in Gucheng area of Tarim Basin is carbonate reservoir. In the past, carbonate reservoir evaluation based on mud logging data was fragmented and unsystematic. From the point of cuttings, core and comprehensive mud logging unit, the reservoir lithology is identified by carbonate analysis, thin section identification of cuttings and XRD diffraction technology. The methods and standards were set up for evaluating reservoir physical properties by mechanical specific energy ratio. In addition, gas-bearing evaluation parameters were optimized and the interpretation chart of gas and water layers was established. A set of mud logging comprehensive interpretation and evaluation methods for carbonate reservoirs were formed. At present, their application in 5 wells such as X 11 and X 16 has achieved good results, and the coincidence rate of interpretation and evaluation is 83.3%.

Key words: carbonate rock, reservoir evaluation, gas logging, reservoir space, mud logging comprehensive evaluation, fluid property, physical property evaluation