1) sand pump

捞砂泵
1.
To solve effectively the problem of sand removing in low-pressure absorption wells,a drilling sand pump was developed.
为了有效解决低压漏失井的井下清砂问题,研究开发了一种具有钻进功能的捞砂泵。
2) bailer grab

捞砂筒捞钩
3) sand line

砂线;捞砂绳
4) Sand gainer

捞砂车
5) sand-bailing equipment

捞砂装置
6) sand fishing by tubing carrier

油管捞砂
1.
This paper presents the sand fishing by tubing carrier and steel line carrier, respectively, which can effectively remove the deposited sand at the bottom of the well and will not bring pollution to the reservoir as well as th.
本文介绍了油管捞砂和绳索捞砂,该捞砂技术能有效清除井底沉砂,不产生储层污染和地面污染,省时高效,得到了现场验证,建议在煤层气井推广应用。
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