Audited Supplier
114
Customized
API
Taper-length
Center Drill Bit
High Carbon Steel
Well Drilling
Eccentric Overburden Casing System
114mm
100mm
92mm
94mm
124mm
3"
HW
Standard Packing
108-377mm
China
8207191000
Product Description
Product Description:
Casing System, also named Eccentric Casing System, is suitable for drilling water wells, geothermal wells, short mircopiles,medium mini-type grouting hole of building, diamond harbour project.
Economy: Eccentric is the most economical solutions because its ingenious reaming wing the bit is retrievable can be used at the next hole.
Working Principle:
When drilling, the reamer bit will rotate out to enlarge the hole which enough for the casing tube slide down behind the reamer. When reached required depth, the drill pipe will drill to the reverse direction and the reamer bit will retract, It is allowing the whole drilling system to pass through the casing.
working principle:
Operation steps:A:When drilling starts working,reaming sleeve will open,borehole range will increase,which will casing shoe and casing tube. |
B:When finish drilling in overburden layer,pay attention to reverse circulation,reaming sleeve circles up,eccentric drilling bit lifts out from the borehole. |
C:The casing that can be left in the borehole to prevent borehole from collapsing while pulling out pipe and grouting concrete. |
D:Regular drilling bits can be applied to drill the depth as required in the rock stratum. |
| model | casing tube O.D./mm | Maximum O.D. of guide device/mm | bit diameter/mm | casing shoe I.D./mm | maximum reaming O.D./mm | hammer style |
| 108 | 108 | 92 | 84 | 86 | 118 | 3" |
| 114 | 114 | 100 | 92 | 94 | 124 | 3" |
| 127 | 127 | 110 | 100 | 102 | 136 | 3-4" |
| 146 | 146 | 124 | 115 | 117 | 156 | 4" |
| 168 | 168 | 146 | 134 | 138 | 178 | 5" |
| 178 | 178 | 156 | 144 | 148 | 193 | 5" |
| 183 | 183 | 160 | 144 | 152 | 193 | 5" |
| 194 | 194 | 178 | 165 | 167 | 208 | 6" |
| 219 | 219 | 203 | 189 | 193 | 237 | 6-7" |
| 245 | 245 | 220 | 206 | 210 | 260 | 6-8" |
| 273 | 273 | 256 | 238 | 242 | 308 | 8" |
| 325 | 325 | 297 | 280 | 285 | 355 | 8-10" |
| 377 | 377 | 351 | 328 | 333 | 420 | 10-12" |
Details:
Working range:Casing System, also named Eccentric Casing System, is suitable for drilling water wells, geothermal wells, short mircopiles,medium mini-type grouting hole of building, diamond harbour project.
Company profile:Shandong Hengwang Group Co., Ltd. is a professional company engaged in research , development, production, sales, application and service of rock drill machines ,drilling tools,and pile driver machines.
FAQ:
Q1: Can I have a sample for testing?
A:Samples are still to be paid but discounted price can be provided.
Q2: Do you have the inspection procedures?
A:100% strict inspection and testing for every order before packing.
Q3: How can i get the after sale services?
A:Free replacement will provide once the problems casued by our product quality.
Q4: Can I have a visit to your factory before the order?
A: Sure, welcome, here is our address: Jining, Shandong.
Q1: Can I have a sample for testing?
A:Samples are still to be paid but discounted price can be provided.
Q2: Do you have the inspection procedures?
A:100% strict inspection and testing for every order before packing.
Q3: How can i get the after sale services?
A:Free replacement will provide once the problems casued by our product quality.
Q4: Can I have a visit to your factory before the order?
A: Sure, welcome, here is our address: Jining, Shandong.