In the Dabei oil and gas field, addressing wax deposition in condensate gas reservoirs is crucial. By analysing field-obtained samples with varied wax contents (7%, 12%, 19%, 28%) using the HPVT-150 PVT instrument, we observed minimal changes in flash steam composition but notable enrichment in flash oil components and increased condensate oil densities. Higher wax content led to an increased flash gas-to-oil ratio, dew point pressure, and reverse condensate saturation, impacting heavy hydrocarbons. Recovery efficiency of condensate oil decreases with higher wax content and abandonment pressure at 10MPa. These findings are pivotal for developing high-wax condensate reservoirs.

This paper describes a fracture characterization and modeling project in China. The fracture characterization uses different sources and different scales of fracture-related data including outcrop, core, log, seismic, drilling, well test and production data for fracture recognition and analysis (Prioul et al (2009) and Hirata, (1989)). Subsequently, in the fracture modeling phase, a geostatistical method – the discrete modeling approach – is utilized to integrate the data from the various fracture characterization results. The fracture modeling uses the fracture characteristic parameters and their corresponding distribution under the guidance of the regional fracture development background to build a discrete fracture network (DFN) (Figure 1). Presentation Date: Thursday, September 28, 2017 Start Time: 9:45 AM Location: 330A Presentation Type: ORAL