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发明公开
CN102817585A 双管循环捞砂 无效 - 撤回

双管循环捞砂
摘要：
本发明涉及一种捞砂装置，特别涉及一种双管循环捞砂，其技术方案是：主要是由捞砂管、捞砂锥尖、冲砂管组成，捞砂管底部设有捞砂锥尖，所述的捞砂管内设有冲砂管，所述的捞砂管上部设有多个排液孔；本发明的有益效果是：通过采用在捞砂管内设置冲液管，可以实现底部沉砂被冲洗出来，实现冲砂，提高油井产量，降低工人劳动强度。
摘要（英）：

The invention relates to a sand bailing device, in particular to a double-pipe circulating sand bailing device. The technical scheme includes that the sand bailing device mainly comprises a sand bailing pipe, a sand bailing conical tip and a sand washing pipe, the sand bailing conical tip is arranged at the bottom of the sand bailing pipe, the sand washing pipe is arranged in the sand bailing pipe, and a plurality of liquid drainage holes are arranged on the upper portion of the sand bailing pipe. The double-pipe circulating sand bailing device has the advantages that the sand washing pipe is arranged in the sand bailing pipe, the sand at the bottom can be swashed out, the sand washing is achieved, the oil well production is improved, and the labor intensity of workers is reduced.

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