chemical sand control的意思|示意

There is a lack of dependable layered sand control tools that are rubber sealed and clamp anchored in chemical sand control of oil and water wells with long intervals and multiple layers.

针对化学防砂在长井段多油层的油水井防砂时缺少可靠的胶筒密封和卡瓦锚定的分层防砂工具的问题，研制了水力密闭式分层化学防砂工具。

The field technique test and effect evaluation of sand control of recent years are summarized, and application of high - pressure filling sand - control and chemical sand -control have a good effect.

文章总结了近几年防砂的现场工艺试验及效果评价，优选出采用高压充填防砂及化学防砂应用效果较好。

It is an effective way to control desert and realize vegetation recover by combining the chemical sand fixation with plants sand fixation.

化学固沙与生物措施相结合是实现沙漠快速治理及植被恢复重建的一条有效途径。