Wellsite Multi-Phase Flow and Core Online Detection Technology

Abstract

Abstract In the past 20 years, the wellsite Nuclear Magnetic Resonance (NMR) technology has developed rapidly and played an important role in oil Production and development. Logging NMR refers to the measurement, analysis, and application of NMR technology in the complex and harsh environment of oil and gas drilling sites. It is currently used in downhole and NMR logging, including cable NMR logging, while-drilling NMR logging, downhole NMR fluid analysis devices, and application technologies. With the expansion of unconventional oil and gas resource development in recent years and the demand for integrated geological engineering construction, multiphase flow high-frequency and high-precision measurement and complex core in-situ detection technologies have become research hotspots for various oil and service companies. NMR technology has become one of the research directions due to its irreplaceability demonstrated in the logging field. However, there are still several scientific problems that need to be solved for the application of NMR technology in measurement and core scanning: 1. The current measurement method requires the sample to remain relatively still during the measurement process; 2. The current NMR probe cannot adapt to the complex environment of the oilfield; 3. The existing NMR measurement and interpretation software cannot meet the requirements of automation and intelligence in the drilling site. This paper proposes online monitoring of oil and gas production multiphase flow and reservoir detection technology for drilling cores, the NMR multiphase flow on-line detection technology and the core well site scanning technology are proposed, which fills the shortcomings of the industrial application of the motion magnetic resonance technology. It also expands the application of NMR technology in the petroleum field from petroleum logging to drilling, well testing, oil & gas production, and gathering and transportation.