在罐体外部装有夹层水套，水套中装有恒温加热装置，水套上设有进、出水阀。
The exterior of the tank body is provided with an interlayer water jacket provided with a constant temperature heating device and a water inlet and a water outlet valves.
研究表明，对于垂向渗透率较低、油水界面之上存在夹层的储集层，采水控锥效果显著。
The results suggest that a reservoir with low vertical permeability and interlayer above the water oil contact would have good effect of water extraction and cone control.
针对老油田开发现状及存在的问题，开展了大厚层内薄夹层堵水技术研究。
The research of the technology of thin intercalation in thick layer was developed aiming at the production status and the existent problem.
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