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Category: Drill pipe

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Working principle of screw drill

The screw drill can also be called the earth drill. When we use the earth drill, we want to know what the working principle of the earth drill is? In fact, the principle of the drill is very simple. The small hydraulic auger is a kind of auger blade drilling machine, which is installed on…
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Working principle of crawler hydraulic direct push drilling rig

Crawler type hydraulic direct push drilling machine is a kind of soil sampling equipment with high recognition in the market. Although this kind of equipment has high sampling efficiency, its price is also frighteningly high. For some powerful enterprises, it is also a symbol of capacity. After all, a million yuan soil sampling equipment can…
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In the spiral drill pipe, the performance distinction of single screw, double helix and triple helix?

Spiral number: the different designs of single spiral, double spiral and three spiral are selected to meet the needs of different geological conditions and drilling technology, especially with reference to the needs of slag removal efficiency. Compared with the multi-channel screw, the single screw has the characteristics of smaller relative pitch, larger slag discharge thrust…
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Carbide drill

In the process of drilling, attention should be paid to the condition of the drilling rig and the high-efficiency spiral drill pipe. Such as sticking, sudden death, and so on. Stop drilling immediately or drill slowly after drilling back to ensure that the high-efficiency spiral drill pipe does not bend flat. When the high-efficiency spiral…
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A detailed explanation of triangular drill pipe

Triangular drill pipe: alias: triangular drill pipe, anti collapse drill pipe, anti lock drill pipe. Overview: triangular drill pipe is a kind of drill pipe for coal mine drilling, which is made of triangular arc steel pipe with cone transition as drill pipe body and friction welding with threaded or triangular, square and hexagonal drill…
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Development status of titanium alloy drill pipe

Based on the characteristics of titanium alloy such as high specific strength and low elastic modulus, titanium alloy drill pipe is more suitable for small radius wells and horizontal wells, which can greatly reduce the surface equipment load and the hydraulic loss of joints. Especially for short radius wells, titanium alloy drill pipe can significantly…
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Causes and solutions of drill pipe fracture in directional drilling

1、 Fracture cause 1. In order to save investment, the directional drilling equipment used by the construction contractor does not match the actual demand of the engineering construction, the tonnage of the directional drilling equipment is too small, the maintenance is not timely, and the failure rate is high, which makes the drilling force of…
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Causes of drill pipe damage during drilling

1、 Vibration, bending and wear When the drill string reaches the critical speed, it will vibrate when it reaches the critical speed, which will often cause the drill pipe to bend, excessively wear, damage quickly and fatigue. Especially, when two kinds of vibration (wave joint vibration and spring swing vibration) coincide with each other, the…
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Three common wrong operations of drill pipe in well drilling rig

Don’t underestimate the small sticks like drill pipes. Some inexperienced drillers often make mistakes in their operations, which will have a great impact on the drilling team. Therefore, Zhengyang water well drilling rig manufacturer Xiaobian summarizes three common wrong operations based on our service engineer’s experience, hoping to give you some reference and guidance. The…
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Gun drill – the main body of deep hole processing technology

Introduction of carbide gun drill The gun drill can not only be used to process deep holes (L / D ratio > 10), but also can be used to process precision shallow holes. Gun drill generally consists of drill stem, drill pipe and drill bit. There is a through hole in the middle of the…
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What are the characteristics of integral spiral drill pipe

Spiral drill pipe, after you have heard it, you may know what it is literally. Drilling tools are widely used in the mining industry, especially in drilling. 1) Compared with the conventional coal mine full hydraulic drilling rig, the application of drill pipe does not need to upgrade the current drilling rig, and will not…
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Working conditions and loads of directional drill pipe and directional drill bit

Working conditions of directional drill pipe The drill pipe string composed of directional drill pipe is an elastic system. In the process of directional drilling, the size and direction of the load on the drill pipe are changing. The directional drill pipe bears complex alternating loads such as tension, compression, torsion, bending and vibration in…
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How to select geological drill pipe

1、 Understand drill pipe properties. Geological drill pipe is a kind of drilling tool which uses alloy steel pipe to thicken by upsetting at both ends, turning small pitch taper thread, and connecting with lock joint. It is used in the field of geological exploration to transfer drilling torque to bottom hole bit, and is…
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High-efficiency spiral drill pipe

Introduction of high-efficiency spiral drill pipe The drill pipe body is made of high-pressure seamless alloy steel pipe, and the spiral blade is made of a high wear-resistant T-shaped steel belt by prestressed winding and welding. The drill pipe joint is made of high-quality medium carbon alloy steel, vacuum quenched and tempered, and high pressure…
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Successful application of titanium alloy drill pipe independently developed by China

China’s independently developed high-strength titanium alloy drill pipe has successfully completed the drilling of 7100m ultra deep wells in Western oilfields, marking another major progress in the research and development of oil and gas well tubing in the field of deep and ultra deep wells in China, which will effectively improve the drilling efficiency and…
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How to select drill pipe

Some friends often ask me about the collocation of drill pipe and drilling rig, or the use of drill pipe, but few people ask how to choose a good drill pipe. This is because the general public in the purchase, will choose at will in the low price goods, so in the actual use is…
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