Research and application on shift compensation of LVC work roll contour;

With the analysis on the deformation of the work roll,the effect of roll shift of the work roll on the crown .

Dye tracer with wave length 520nm is selected to find the breakthrough flow channel between oil and water wells.

Effect of start-up pressure gradient on steam channeling within heat condensate zones in the Bingham and monoclinal heavy oil reservoirs

Along with the increasing turns of steam flooding, severe steam channeling occurs between steam injection wells and production wells, making production performances get worse dramatically.

Since strengthened steam huff and puff having been carried out for years in heavy oil reservoirs with shallow buried depth,loosened cementation,serious vertical and horizontal heterogeneity of Henan Oilfield,steam channeling has increasingly influenced the normal production and development.

In this paper, solving methods to gas well cementing are presented, anti-channeling cement additives are selected based on analyzing the necessary conditions for the anti-channeling cement slurry sys.

This paper aims to cementing challenges to development well in Fuyang reservoir, on the basis of analysis of channeling in the annulus and loss during cementing, and requirement of protecting reservoir in low-permeability oil fields, carry out the study on cementing technologies such as anti-channeling, leak protection and cementing design optimization.