Wholesale API water well TCI tricone rock drill bits IADC537 with elastomer sealed bearing for hard formmation in stock with discounted price from China factory Bit Description: IADC: 537-TCI journal sealed bearing bit with gauge protection for soft to medium soft formations with low compressive strength. Compressive Strength: 85-100 MPA 12,000-14,500 PSI Ground Description: Medium hard and abrasive rocks such as sandstones with streaks of quartz, hard limestone or chert, hematite ores, hard, well-compacted abrasive rock such as: sandstones with quartz binder, dolomites, quartzite shales, magma and metamorphic coarse grained rocks. Far Eastern Drilling can offer tricone bits in a variety of sizes (from 3” to 26”) and most of IADC Codes.| Basical Specification | |
| Size of Rock Bit | 9 1/2 inches |
| 241.3 mm | |
| Bit Type | Tungsten Carbide Insert (TCI) bit |
| Thread Connection | 6 5/8 API REG PIN |
| IADC Code | IADC537G |
| Bearing Type | Journal Bearing |
| Bearing Seal | Elastomer Sealed Bearing |
| Heel Protection | Available |
| Shirttail Protection | Available |
| Circulation Type | Mud Circulation |
| Operating Parameters | |
| WOB (Weight On Bit) | 24,492-54,051 lbs |
| 109-241KN | |
| RPM(r/min) | 120~50 |
| Formation | Medium formations with low compressive strength,such as medium shale,limestone,medium sandston,etc. |
Drilling is an engineering project that uses drilling equipment and technology to rationally develop and utilize water resources in the earth's strata. Groundwater, on the other hand, is water that exists in cracks in the earth's crust or in crevices in the soil. Water in various states buried below the earth's surface is collectively called groundwater. The effect of water cutting characteristics of different structures on the production of oil wells is as follows. 1. Clean sand and gravel sedimentary rocks are the best source of water. This structure has high water absorption, high water content and good permeability. 2. Sand and gravel mixed layer. Sand and gravel mixed layer is also a water producing structure. It is a secondary water-producing rock because of the different proportion of sand. The lower the sand content, the higher the water production. 3. clay structure. Although clay structures can hold water well, it is difficult for water to move through them. This means that the clay structure does not flood the well, so it is not an aquifer. 4. Sandstone. It refers to earth-born clastic rock with a grain size of 0.0625 ~2 mm and sand making up more than 50% of all clastic particles. It is a poor water-producing rock if clay ACTS in sandstone as cement to hold the sand together. 5. Limestone. Of all sedimentary rocks, it is a good source of water. Limestone usually has large openings, such as underground karst caves, with high water content, but poor water quality. 6. Basalt. Early beds are dense rather than good water producing because they are tightly packed together. If it is late it has spongy development and it is a good source of water. 7. It is a hard rock. Rocks such as granite, porphyry and other crystalline rocks usually produce water poorly. The worst water producing beds are metamorphic rocks such as gneiss, quartzite, SLATE and soapstone. In order to avoid inefficient drilling, oil standard cone bit sizes should be selected when designing the drilling diameter. The choice of standard cone bit for pilot hole must facilitate the processing of reaming assembly cone bits to reduce the cost of bit processing. The influence of drilling parameters on drilling efficiency is the weight of the bit. The weight of the bit should be determined according to the hardness and softness of the formation. Also, the quality of the bit, the borehole, drilling tools, displacement and the performance of the flushing fluid, equipment and power should be considered. Correct use of the trigon bit: try to choose the type of trigon bit suitable for the lithological requirements, match the bit size with the drilling design, and use it in the order of size In the process of use, if there is a rampage, the cause should be analyzed immediately to check whether the formation changes or the well wall collapses. The parameters should be analyzed and adjusted immediately. If the uplift bit cannot drill normally, the uplift bit should be checked, and the working condition of the bit in the hole should be analyzed and judged. In addition, measures should be taken to control the deviation of well position, reduce the clearance between the drilling tool and the hole, and play the role of full-hole drilling and rigid anti-deviation. To prevent deviation, a concentrator and a drill collar can be added to the top of the trigonal cone bit.
