Rotary drilling bit-the characteristics, specifications and application scope of various barrel drills
Release time:
2019-03-29
Source:
Http://www.sohu.com/a/296412802_120080391
There are many types of rotary drill bits on rotary drilling rigs. Commonly used among them are sand hopper, barrel drill and spiral drill. Each drill bit has evolved many different forms of drill bits due to the different combinations of specifications and models. The following is a detailed introduction to one type of drill bit-barrel drill: barrel drill can be divided into pick barrel drill, trident barrel drill, cone barrel drill and double barrel drill according to the formation conditions. The cutting tooth barrel drill is suitable for backfill layer, moderately weathered layer and bedrock layer; the cone barrel drill is suitable for medium and slightly weathered rock layer, hard rock layer and super British rock layer, and has a wide range of applications. The double-layer barrel drill is suitable for broken soil layer and pebble layer, moderately weathered rock layer.
There are many types of rotary drill bits on rotary drilling rigs. Commonly used among them are sand hopper, barrel drill and spiral drill. Each drill bit has evolved many different forms of drill bits due to the different combinations of specifications and models. The following is a detailed introduction to one type of drill bit-barrel drill: barrel drill can be divided into pick barrel drill, trident barrel drill, cone barrel drill and double barrel drill according to the formation conditions. The cutting tooth barrel drill is suitable for backfill layer, moderately weathered layer and bedrock layer; the cone barrel drill is suitable for medium and slightly weathered rock layer, hard rock layer and super British rock layer, and has a wide range of applications. The double-layer barrel drill is suitable for broken soil layer and pebble layer, moderately weathered rock layer. Trident barrel drilling is suitable for gravel soil layer, strongly weathered rock layer and moderately weathered rock layer;
Characteristics of cutting tooth barrel drill: 1. Circumferring cutting of barrel to release rock confining pressure; 2. Step crushing and grinding drilling of cutting teeth 3. Small drilling tools have high coring rate and large drilling tools are graded and matched for crushing. 4. Suitable for backfill layer, moderately weathered rock layer and bedrock layer; What can be customized for cutting tooth barrel drilling? 1. Customization of cutting diameter: design cutting diameter according to customer requirements, such as Φ 950 and Φ 1050, which are mostly used in conjunction with casing construction; 2. Cylinder height customization: design the height of the cylinder according to customer requirements, such as increasing to 1500 and 2000, increasing the single drilling volume and improving the construction efficiency; 3. Strengthening customization of weight-closing structure: strengthening parameters of various parts according to customer requirements, such as wall thickness thickening and bottom plate thickening, etc; 4. Customization of square head size: Customize the square head size of drilling tools according to the customer's drill pipe square head, usually 130 × 130, 150 × 150, 200 × 200, etc. 5. Customization of the number of drill teeth: encrypt the drill teeth according to customer requirements;
The characteristics of cone barrel drilling: 1. The barrel is cut to release the rock confining pressure; 2. The tooth wheel drilling teeth are rolled and ground, and the drilling tooth loss is small. 3. The coring rate of small drilling tools is high, and the large drilling tools are graded and broken. 4. It is suitable for medium and breeze strata, hard strata and super-hard bedrock strata. What items can be customized for cone barrel drill? 1, cutting diameter can be customized, according to customer requirements design cutting diameter, such as Φ 950, Φ 1050, etc., mostly used in conjunction with casing construction; 2. The height of the cylinder can be customized. The height of the cylinder can be designed according to customer requirements, such as increasing to 1500 and 2000, increasing the single drilling amount and improving the construction efficiency. 3. The weight-closing structure can be customized and the parameters of each part can be strengthened according to customer's requirements, such as wall thickness thickening and floor thickening; 4. Customization of types of cones: welded cones or replaceable cones can be selected, which can be customized according to customer requirements; 5. Square head size can be customized: the square head size of the drill tool can be customized according to the customer's drill pipe square head, usually 130 × 130, 150 × 150, 200 × 200, etc. 6. The number of drill teeth can be customized: the drill teeth are arranged in an encrypted manner according to customer's requirements;
what are the characteristics of double barrel drill? 1. The small barrel is cut in first, and the large barrel drill follows the ring cutting to release the rock confining pressure; 2, pick step crushing and grinding drilling; 3, small drilling tool coring rate is high, large drilling tool grading and crushing; 4, suitable for broken soil layer, pebble layer, moderately weathered rock layer; Trident cutting barrel drill characteristics: 1, cylinder ring cutting to release rock confining pressure, trident follow up crushing; 2, rich fissure formation, trident can improve slag carrying capacity; 3. It is suitable for gravel soil layer, strongly weathered rock layer and moderately weathered tooth layer. What are the customizable items for the double barrel drill? 1. Customization of cutting diameter: design cutting diameter according to customer requirements, such as Φ 950 and Φ 1050, which are mostly used in conjunction with casing construction; 2. Cylinder height customization: design the height of the cylinder according to customer requirements, such as increasing to 1500 and 2000, increasing the single drilling volume and improving the construction efficiency; 3. Strengthening customization of weight-closing structure: strengthening parameters of various parts according to customer requirements, such as wall thickness thickening and bottom plate thickening, etc; 4. Customization of square head size: Customize the square head size of drilling tools according to the customer's drill pipe square head, usually 130 × 130, 150 × 150, 200 × 200, etc. 5. Customization of double-cylinder spacing: Customize the double-cylinder spacing according to customer requirements;
What are the characteristics of trident barrel drilling? 1. Circumfering the barrel to release the confining pressure, and the trident to follow up the crushing; 2. Stratum with abundant gap development, the trident has strong slag carrying capacity; 3. It is suitable for gravel soil layer, strongly weathered rock layer and moderately weathered rock layer. What items can be customized for trident barrel drill? Customization of cutting diameter: design cutting diameter according to customer requirements, such as Φ 950 and Φ 1050, which are mostly used in conjunction with casing construction; 2. Cylinder height customization: design the height of the cylinder according to customer requirements, such as increasing to 1500 and 2000, increase the single drilling volume and improve the construction efficiency; 3. Strengthening customization of weight-closing structure: strengthening parameters of various parts according to customer requirements, such as thickening of wall thickness and thickening of bottom plate; 4. Customization of square head size: Customize the square head size of drilling tools according to the customer's drill pipe square head, usually 130 × 130, 150 × 150, 200 × 200, etc. 5. Inner Trident Customization: Customize the inner trident as trident or cross fork according to customer's requirements; 6. Customization of the number of drill teeth: encrypt the drill teeth according to customer's requirements;
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