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Precautions for use of carbide drill
Jan 10, 2018

Precautions for use of carbide drill

Carbide drill in the process of using the need to pay attention to the matter:

1, the quality of the drill bit is the fundamental use

Checking drill bit quality, newness, and nozzle installation reliability before entering the well is critical to drill use. Check the drill into the well before the quality of records, can distinguish between the quality of drill failure is the cause or use.

2, only drill bit

The failure of each drill bit affects both the environment at the bottom of the well and the use of the drill bit. Collecting only records of drill bit failure description, analyzing the cause of failure of the drill bit, determining the working environment of the bit used in the well, and judging the impact of the well drop, well diameter and bottom shape on the drill bit failure. The company is located in:

3, stratigraphic lithology

Stratum lithology and hard and soft different rock crushing mechanism, resulting in different forms of bit failure. The common stratigraphic lithology in all oilfields in our country are determined by the petrophysical properties. According to the formation lithology and logging per meter of lithology collected on site, the hardness, plasticity, brittleness, abrasiveness and drillability of formation rock are analyzed. The failure mode of the drill bit is checked to confirm whether the bit selection and use is reasonable. The company is located in:

4, well location

Rocks in different positions in the crust vary greatly in their mechanical properties. Buried deeper rocks, in a multi-directional compressive stress state, the rock porosity decreases, increasing strength. The upper section of the rock generally loose cement, soft, high bit speed, low bit weight. The lower section of the rock generally hard, abrasive, bit low speed, high bit weight, the use of a long time. According to the records of well interval and lithology per meter collected, the hardness, plasticity, brittleness, abrasiveness and drillability of formation rock are analyzed. The failure mode of drill bit is checked to confirm whether the selection and use of drill bit is reasonable. The company is located in:

5, drill string combination

Drill string is China Unicom ground and underground hub. Different drill string structure and the state of stress in the well determines the size and direction of the bit weight to be borne by the drill. For directional drilling or larger deviation, the actual weight-on-bit experienced by the drill is smaller than that indicated on the weight-pressure gauge. If the drill-string combination has a centralizer, the actual weight-on-bit will be smaller. At the same time, due to the friction between the centralizer and the shaft wall, the stability of the drill bit is enhanced, which is favorable for the use of the drill bit. The company is located in:

6, mud parameters

Drilling into different well sections, the mud displacement, liner diameter, nozzle diameter, type and combination used are of practical significance for selecting the pressure drop of the bit and the bit power of the bit. Jet drilling in the drill to strengthen the hydraulic effect at the same time, resulting in the drill runner damage. Mud parameters and change records, is an important basis for bit failure analysis. Such as bit erosion of runner failure, tooth roller matrix erosion caused by tooth loss, broken teeth and other damage directly related to the parameters of the mud. The company is located in:

7, well structure

Different well structure, the drill bit size, type and use, etc. have special requirements. Such as beveling drill generally require trimming teeth or gage structure, the use of high speed, low pressure and so on. Collect well structure and bit selection, the use of parameters and other data, according to the form of bit failure, confirm the selection and use of bit is reasonable.

Foshan Meisasi Trading Co., Ltd. mainly produces wear-resistant parts, cold forging dies, oil drilling mud nozzles, tensile dies, hard alloy for oilfield drill bits, cemented carbide for mine bits, cemented carbide sheets, cemented carbide sheets Bars, Carbide Kun Ring, Carbide Chip. Carbide wafer knife, carbide sleeve, carbide seals and other products. The company has a strong machining capacity, testing means complete, strict quality management system, advanced technology, sophisticated technology and equipment. For more details, you can pay attention: http: //www.masseschina.com/


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