旅大27-2油田稠油油藏采出液流动特性

doi:10.3969/j.issn.1001-1803.2020.07.004

Abstract

Abstract:

The thermal recovery development method adopted in the heavy oil reservoir of LD-27-2 oilfield is cycle steam stimulation. In the development process, the main factors affecting the viscosity change of the production fluid were heavy oil group composition, temperature, water content and liquid production rate. Firstly, the influencing factors affecting the viscosity change of heavy oil in LD-27-2 oilfield were studied through laboratory experiments. Then, the fluidity model of the heavy oil reservoir in the LD-27-2 oilfield was established in combination with the wellbore data of the production well. Finally, based on the cycle steam stimulation parameters and production data, the bottom-hole flow temperature chart of the heavy oil reservoir and the viscosity chart of theproduction fluid of the heavy oil reservoir were established. According to the established bottom-hole flow temperature chart, the bottom fluid temperature and corresponding formation temperature of the production fluid in different stages of heavy oil steam stimulation in the LD-27-2 oilfield could be calculated. Combined with the viscosity chart of the production fluid, the viscosity of the production fluid in different flow stages and steam stimulation stages could be calculated, which could provide a guidance for oilfield production and implementation of measures.

Key words: heavy oil, LD-27-2 oilfield, flow characteristics, production fluid, chart

CLC Number:

TE345

LIU Yi-gang,LIU Jian-bin,ZOU Jian,ZHANG Hua,HAN Xiao-dong,LIU Hao. Flow characteristics of production fluid in heavy oil reservoirs of LD-27-2 oilfield[J].China Surfactant Detergent & Cosmetics, 2020, 50(7): 452-456.

Figures/Tables 12

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Flow characteristics of production fluid in heavy oil reservoirs of LD-27-2 oilfield

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