Model | ** |
---|---|
Brand | FENGSU |
Type | Drill bit |
Material | Aolly |
Size Range | ** |
Thread Type | ** |
Recommended Formation | ** |
Origin | HUNAN,China |
Packaging | Carton or Wooden Box |
We are based in Hunan, China, start from 2019,sell to South Asia(16.00%),Mid East(15.00%),Africa(13.00%),Southeast Asia(12.00%),Eastern Asia(10.00%),North America(8.00%),Central America(6.00%),South America(6.00%),Northern Europe(4.00%),Western Europe(3.00%),Domestic Market(3.00%),Oceania(2.00%),Southern Europe(1.00%),Eastern Europe(1.00%). There are total about 51-100 people in our office.
We are based in Hunan, China, start from 2019,sell to South Asia(16.00%),Mid East(15.00%),Africa(13.00%),Southeast Asia(12.00%),Eastern Asia(10.00%),North America(8.00%),Central America(6.00%),South America(6.00%),Northern Europe(4.00%),Western Europe(3.00%),Domestic Market(3.00%),Oceania(2.00%),Southern Europe(1.00%),Eastern Europe(1.00%). There are total about 51-100 people in our office.
We are based in Hunan, China, start from 2019,sell to South Asia(16.00%),Mid East(15.00%),Africa(13.00%),Southeast Asia(12.00%),Eastern Asia(10.00%),North America(8.00%),Central America(6.00%),South America(6.00%),Northern Europe(4.00%),Western Europe(3.00%),Domestic Market(3.00%),Oceania(2.00%),Southern Europe(1.00%),Eastern Europe(1.00%). There are total about 51-100 people in our office.We are based in Hunan, China, start from 2019,sell to South Asia(16.00%),Mid East(15.00%),Africa(13.00%),Southeast Asia(12.00%),Eastern Asia(10.00%),North America(8.00%),Central America(6.00%),South America(6.00%),Northern Europe(4.00%),Western Europe(3.00%),Domestic Market(3.00%),Oceania(2.00%),Southern Europe(1.00%),Eastern Europe(1.00%). There are total about 51-100 people in our office.
We are based in Hunan, China, start from 2019,sell to South Asia(16.00%),Mid East(15.00%),Africa(13.00%),Southeast Asia(12.00%),Eastern Asia(10.00%),North America(8.00%),Central America(6.00%),South America(6.00%),Northern Europe(4.00%),Western Europe(3.00%),Domestic Market(3.00%),Oceania(2.00%),Southern Europe(1.00%),Eastern Europe(1.00%). There are total about 51-100 people in our office.
1. During normal operations, it is strictly forbidden to suddenly reverse the direction of operation to prevent the detachment of the composite sheet drill bits.
2. Ensure that there are no air leaks in the main airway of the air compressor during normal operations to maintain sufficient airflow and pressure, thereby extending the life of the diamond composite sheet drill bits.
3. When using a new composite sheet drill bit for the first time, operate at low speed for half an hour for running-in before progressively transitioning to normal usage.
4. In adverse geological conditions, reduce the axial pressure and rotation speed to prevent drill bit fracture.
5. During normal drilling operations, if it becomes necessary to change the drill bit midway, thoroughly check the borehole for debris. Only proceed with a new composite sheet drill bit if the borehole is clean.
6. To ensure stable and normal operation of the drill bit, replace the stabilizer regularly.
Pay attention to the cleanliness of the drilling area when using a new composite sheet drill bit for the first time to prevent debris from affecting
7. normal operation. Before replacing with a new drill bit, carefully check that the threads and teeth are intact and gently push to test if there are any issues.
8. Ensure that the inside is dust-free and the air outlet is clear, the threads are lubricated, and after connecting the drill bit with lifting and rotation, you may proceed to use it.
9. It is strictly prohibited to use bent drill rods to avoid uneven stress on the drill bit, which could accelerate damage and affect the normal usage time.
10. Choose different drill bits and operation methods based on different situations.
11. Before descending the well with a composite sheet drill bit, carefully inspect all parts to ensure there are no issues before beginning to use the drill bit.
Clasificación/Nombre del estrato | Representando estratos de roca | Velocidad de perforación teórica/longitud de extracción recomendada | Brocas recomendadas |
---|---|---|---|
Nivel 1 (suelo suelto) | Loess secundario, Hongshi secundario, arena blanda sin grava y grava angular, tierra de diatomeas | 15M/h, 15M/P | Broca de aleación, broca compuesta de dientes pequeños, broca compuesta ordinaria |
Nivel 2 (Roca suelta) | Huangshi/Hongshi/arcilla turbosa/suelo arenoso/tipo caolín | 8M/h, 2,4M/P | Broca de aleación, broca compuesta de dientes pequeños, broca compuesta ordinaria |
Nivel 3 (roca blanda) | Esquisto/pizarra/roca de pastoreo/esquisto/capa de arena ligeramente cementada fuertemente erosionada | 6M/h, 2M/P | Broca compuesta ordinaria, broca compuesta triangular, broca compuesta en forma de pan, broca compuesta en forma de hoja |
Nivel 4 (Roca ligeramente blanda) | Esquisto, esquisto arenoso, esquisto bituminoso, esquisto carbonoso, esquisto calcáreo, capa intermedia de esquisto arenoso, piedra caliza arcillosa | 5M/h, 1,7M/P | Broca compuesta ordinaria, broca compuesta triangular, broca compuesta en forma de pan, broca compuesta en forma de hoja |
Nivel 5 (Roca ligeramente dura) | Grava y capas de grava, capa de colapso de pizarra fangosa, pizarra de piedra verde de clorita de sericita, esquisto, piedra caliza, mármol | 3M/h, 11,50M/P | Broca compuesta ordinaria, broca compuesta triangular, broca compuesta en forma de pan, broca compuesta en forma de hoja |
Nivel 6-7 (roca media dura) | Clorita, mica, pizarra, roca Qianmu, esquisto, piedra caliza silicificada, calcita | 2M/h, 1,3M/P-1,1M/P | Broca compuesta en forma de hoja, broca compuesta reforzada, broca compuesta con dientes de casco, broca de diamante galvanizada de alta calidad |
Nivel 8-9 (rock duro) | Roca de mica silicificada, gneis, basalto, diorita, piroxenita, cuarzo, pórfido de Anshan | 1,2 M/h, 0,3 M/P-0,65 M/P | Broca compuesta engrosada, broca compuesta en forma de hoja, broca compuesta con dientes de casco, broca de diamante galvanizada convencional, broca de diamante policristalino térmicamente estable (TSP) |
Nivel 10-11 (rock muy duro) | Granito, granodiorita, gneis, riolita, cuarcita | 0,8M/h, 0,5M/P-0,32M/P | Broca sinterizada de cuerpo, broca de diamante galvanizada de bajo grado, broca de diamante policristalino (TSP) térmicamente estable. |
Nivel 12 (Roca extremadamente dura) | Cuarcita, jaspe, esquisto angular, corindón, cuarzo, pedernal, jaspe | 0,3 M/h, 0,16 M/P | Broca sinterizada de cuerpo, broca de diamante galvanizada de bajo grado, broca de diamante policristalino (TSP) térmicamente estable. |
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