+86 10 8467 3566
+86 10 8467 3566
Length:1500-6000 mm
Depth: 300-5000 m
>> Application
This series reverse circulation pipes can increase penetration in lost-circulation formation, reduce driling fluid consumption, protect reservoir stratum and save the cost of other consumption tools. ln additional, the pipes can be worked in two direction circulation drling ways to control the well driling. By reverse circulation method to ki the we the heawy mud can be transferred directly to the bottom of well, no periodic circulaton and save time.
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PRODUCT DESCRIPTION
>> Characteristics
High-pressure air is transported into somewhere of the well along with air pip, via mixer, to inject the high-pressure air into the pipe with liquid, due tothe density of mixed liquor lower than the fushing liquor therefore a differential pressure occurred between pipe and sample tube that to make themixed air and liquid flow up fleetly by the fluid column pressure and take the rock debris or powder out to the ground from bottom of the holecontinuousiv. By this driling method wil provide with advantages ike hich penetration rate. quality pore-forming and fewer hole collapse during drilling in loose formation.
>> Specification
| External Dia.x Thickness | Inner Dia.x Thickness | Thread | Length | Sealing | Drilling Depth | Parts No. |
| (mm | mm | mm | Type | m | ||
| 80x8 | 48x5 | Buttress Thread | 1500-6000 | Dual O ring radial | 300-800 | JRC80/48 |
| 89x8.56 | 38x4 | Remet/Metzke | 1500-6000 | Dual O ring radial | 300-800 | JRC89/38 |
| 102x8.56 | 46x5 | Remet/Metzke | 1500-6000 | Dual O ring radial | 300-1000 | JRC102/46 |
| 108x8.56 | 46x5 | Remet/Metzke | 1500-6000 | Dual O ring radial | 300-1200 | JRC108/46 |
| 114x8.56 | 50x5.5 | Remet/Metzke | 1500-6000 | Dual O ring radial | 300-1200 | JRC114/50 |
| 127x9.35 | 60x7 | Remet/Metzke | 1500-6000 | Dual O ring radial | Less 5000 | JRC120/60 |
| 146x10 | 75x7 | Remet/Metzke | 1500-6000 | Dual O ring radial | Less 5000 | JRC146/75 |
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