Changsha Sollroc Engineering Equipments Co., Ltd
FOCUS IN MANUFACTURING OF HIGH QUALITY DTH AND RC DRILLING TOOLS.
Add to Cart
Shank SRC543 RC Drill Bit , Compact Drill Bits For Mining And Exploration
Product Introduce:
In reverse circulation, drilling fluid (usually water or very thin mud) flows down the annulus, up the drill pipe to the suction side of a pump, and into the tank or pit. Cuttings are lifted inside the drill pipe that has a smaller cross section than the annulus. Suction lift of the pumps limits this method to approximately 450 ft depth at sea level. The method that is preferred for geothermal wells utilizes an air pipe inside the drill pipe to provide the lift, and a cyclone or similar separator to separate air from the water and cuttings mixture. The air lift greatly increases depth capacity.
Adavantages:
HIGH RATE OF PENETRATION
A big advantage of RC is its high rate of penetration. Penetration rates often exceed 80 m per shift depending on ground conditions. The speed of drilling can often mean big cost savings compared to slower drilling methods.
ENVIRONMENTALLY SOUND
Reverse circulation drilling has several environmental advantages. First and foremost, RC mostly requires no water for rock drilling. This is a benefit in areas with limited or sensitive water supply.
In addition, frozen water sources and waterlines can make winter drilling both tricky and expensive, if not impossible. In certain areas, like the arctic tundra, environmental permitting is easier for winter drilling when the ground is frozen and unlikely to be disturbed. Light-weight RC makes winter drilling in the arctic a viable option.
Woring Principle:
By using compressed air to extract rock fragments sample,the samples travel through rods to a sample splitter at surface, avoiding all contact between the samples and the borehole wall that allows samples to be retrieved with minimal contamination.
Specification:
SOLLROC RC BIT model SRC543:
| Diameter | Buttons * button diameter | Button angle | Flushing holes | Shroud diameter (mm) | weight (kg) | ||
| mm | inch | Gauge | Centre | ||||
| 124 | 4 7/8 | 8*14mm | 8*13mm | 35 | 2 | 122 | 11 |
| 127 | 5 | 8*14mm | 8*14mm | 35 | 2 | 125 | 11.2 |
| 130 | 5 1/8 | 8*16mm | 8*14mm | 35 | 2 | 128 | 11.4 |
| 133 | 5 1/4 | 8*16mm | 9*14mm | 35 | 2 | 131 | 11.7 |
About us:
SOLLROC Reverse Circulation drilling (RC) ,from size 3’’ to 5.5’’, is a technique of drilling that uses dual wall drill rods that consist of an outer drill rod with an inner tube. By using compressed air to extract rock fragments sample,the samples travel through rods to a sample splitter at surface, avoiding all contact between the samples and the borehole wall that allows samples to be retrieved with minimal contamination,which is mainly used in deep hole exploration and mining grade control.
Delivery Way:
By Air, By express or By Sea
Package :
Ply-wooden cases + pallet