Innovative approaches of technology for enhancing heavy oil development effect in Chengdao oilfield;

Single well economic evaluation in super heavy oil development;

Application of thermal stress compensator in super heavy oil development;

Design of variable frequency power supply combined with medium-frequency for viscous oil recovery;

The electrical heating production technique of hollow sucker rod passing through hollow subsurface pump is an effective method for viscous oil and heavy viscous oil recovery.

Viscous oil recovery with steam injection is the most widely used and more profitable recovery technique at present.

Energy conversion model and evaluation criteria of steam injection process in heavy oil recovery;

Current status of heavy oil recovery techniques in Shengli oilfield;

In order to evaluate the injection effect and determine the technical conditions of injecting superheated steam in heavy oil recovery , the flow and heat transfer mathematical model of the superheated steam is established on the basis of heat transfer principle and fluid flow theory.

Test and application of water mixing in transmission pump: a case study on heavy oil production in Gudong oilfield;