Recent years, we have found and developed many unconsolidated sand gas reservoirs. The proved reserves and the produced reserves are very considerable.
近年来，发现并投入开发了很多砂岩气藏，其探明储量和已动用储量都是很可观的。
Most shallow reservoirs in Bohai sea are unconsolidated formation with heavy oil, and they are developed mainly by using a sand exclusion management.
渤海浅层油藏大多为胶结疏松的稠油油藏，这类油藏的开发目前主要采取防砂管理方式。
Hence, it is proposed to allow an appropriate amount of sand production during recovery of unconsolidated sandstone gas reservoirs.
疏松砂岩气藏在开采过程中容易出砂，采取完全防砂的方式进行开采，既增加了气井的成本，又降低了气藏的开发速度。
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