Based on the low pressure of the coal bed gas well, the sand removal technology by mechanical sand fishing is put forward.
根据煤层气井的低压特点，提出了通过机械捞砂来清砂的技术。
Oilfield application obtained better results. For low pressure and low permeability hydrocarbon reservoirs, especially gas well, this perforating completion process has important application value.
通过现场应用取得了较好的效果，该工艺技术对低压、低渗油气藏特别是气井的射孔完井具有重要应用价值。
Based on the experimental study of oil gas water slug flow, the numerical simulations of this model agree well with experimental data under the condition of low pressure.
通过油-气-水弹状流的实验研究发现，该模型的数值模拟结果与低压工况下的实验值符合得较好。
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