The friction and wear properties of the nylon coating,used to protect the surface of the flexible continuous sucker rod were studied by using a pin-on-disc wear tester in the simulated oil well environment.

A new type of petroleum equipment, the flexible continuous sucker rod, highly appraised by the oil experts, has a very good application prospect because it can fully exhibit its unique excellence on machine oil extraction.

Computer simulation for dynamic characteristics of electric heating flexible continuous sucker rod;

Analysis of the Dynamic Characteristics for Electric Heating Flexible Continuous Sucker Rod;

Analyses and comparisons of several kinds the continuous sucker rods;

Based on characteristics of Pucheng Oilfield reservoir and production status,the continuous sucker rod techonology was used to reduce the development cost.

Since 1999, the research of carbon fiber reinforced plastic continuous sucker rod(CFRPC sucker rod) has been started in China.

Supporting technique and application of coiled rod in oil production;

The pilot test of coiled rod pumping technology;

Compared with normal rods, the carbon fibre coiled rod behaves much more advantages, such as lighter weight, better elasticity, resisting corrosion, higher fatigue limit, etc.

Optimization and application of flexible sucker rod string;

Development and application of supporting technologies for flexible sucker rod;