Reservoir Engineering Optimization Method Research About Steam Flooding With Horizontal Well In Zheng411 Heavy Oil Reservoir

Zheng 411 oil field genera in Super Heavy Oil Reservoir,after several rounds of horizontal well cyclic steam stimulation,the formation pressure decreases,water recovery rate increased,the overall recovery is severely affected,the development mode need to make change urgently.Steam flooding is the primary way to succeed in cyclic steam stimulation,the study of how to improve Zheng 411 heavy oil recovery by steam flooding of horizontal wells is significant.In this paper,for deep thin heavy oil reservoirs of Zheng 411,using geological model and numerical simulation,simulate Zheng 411 development process of thermal recovery,study the distribution of residual oil,analyze the main factors that affecting the distribution of residual oil;and probe the feasibility of steam flooding,optimize the technical parameters related to steam flooding,provide a reference for subsequent steam flooding;then design the steam flooding field test and carry on the steam flooding field test,after the steam flooding field test,analyze the problems that the horizontal well steam flooding process happened,and propose the follow-up measures to solve the problems;at the same time,due to the crude oil price fell deeply,carry out the economic evaluation,probe the parameters limits in heavy oil reservoir after several rounds of steam stimulation turn to steam flooding mode.