In view of the major problems in the Hexinchang T 3 x 2 bottom water gas field of Sichuan, the authors adopt the three dimension and two phase dual porosity medium model to carry out the simulation research of water displacement in virtue of production by water displacement technology in individual well.

In the light of the characteristics of Sichuan gas fields, a numerical simulation model of researching water invasion of individual well in fracture gas reservoir with bottom water is set up.

The economic and technical policy limit of the horizontal wells in the fault block oil reservoir of thick beds with bottom water in Shengli Oilfield;

Horizontal wells are not suitable for bottom water reservoir development;

Analysis on coning control of bottom water reservoir;

Development practice and understanding in small fault block reservoir with edge and bottom water;

Improve vertical producing degree of heavy oil reservoir with edge and bottom water;

Enhancing oil recovery of edge and bottom water reservoirs in the small fault blocks by usingspecial wells;

Based on the problem and objection of bottom cooling waterpipe prefabricated wrapping structure in bar heating furnace of Han steel,the project of technique reformation was put forward and put into practice.