关键词: 二次防砂工艺, 储层改造, 低温固结覆膜陶粒, 强制诱导脱砂

Abstract: Aiming at the problems existing in the artificial wellbore sand control process,such as complex working fluid systems,complicated procedures,and large construction scales,a secondary sand control process using low-temperature consolidated coated and forced induced sand removal is proposed. In the well X2 of a certain oilfield in Bohai Sea,the cumulative pumping volume of consolidated ceramsite and working fluid was reduced by 50% and 70% respectively compared with the conventional process,the 24-hour post-drill-out heating time was saved,and there was no sand production after production. This process can effectively improve the operation efficiency and reduce the construction cost. One-time construction can achieve the dual effects of production increase and sand control,and it has broad application prospects in deep-layer oil and gas development and the transformation of low-production and low-efficiency wells.

Key words: secondary sand control process, reservoir transformation, low-temperature consolidated coated ceramsite, forced induced sand removal