ABSTRACT

Consideration was given to the characteristics of high porosity and permeability, poor rock formation, loose cementation, high mud content, low dissolved gas-oil ratio, and low flow rate in Unconsolidated Sandstone reservoirs. Based on the analysis of blockage material characteristics and production characteristics with injection wells and production wells, this paper put forward two ways for unblocking processes: degradation and acidification unblock technology and integration technology for stable production, which have been applied and the results have shown to be effective.