fracturing proppant Produced by cutting or grinding action

Drilling

Drilling (drilling) is a mechanical device, a cylindrical bore is drilled in the formation of a predetermined depth engineering. By rock crushing manner and the type of tools 

oil fracturing proppant‍ can be divided into Dayton drilling and rotary drilling.

1 Introduction

In geology, the use of underground drilling equipment to drill a smaller diameter, the depth of the larger cylindrical hole, known as drilling. Drilling diameter and depth of sizes, depending on the use of drilling and mineral burial depth. Drilling for oil, gas and groundwater drilling diameters are larger. The main functions are: ① get underground kind of information, that is to take the core, mine heart, debris, liquid sample, such as gaseous samples from the well. ② as geophysical logging channels, access to a variety of rock layers geophysical field data. ③ as an proppant conductivity‍ artificial aquifer hydrogeological observation channel dynamics. ④ used for exploration, mining, developers groundwater, oil and gas, and geothermal drilling.

Drilling usually use is divided into geological survey or exploration drilling, hydrogeological drilling, wells or engineering geology drilling, geothermal drilling, oil drilling, coal drilling, ore field drilling, drilling and other construction ground.

Dayton Drill

Dayton drill, also known as impact drill. Dayton drill with a rope to the bottom, by a power-driven walking beam mechanism, so that one end of the beam moves up and down, and drive up and down the rope and drill generate impact, the rock crushing. Leighton diamond drilling speed is slow, inefficient and unable to meet the increasing depth and drilling requires complex formation, gradually being replaced by rotary drilling. But it has a simple equipment, low cost and no pollution oil, etc., can be used for some low shallow wells, wells dropout.

Rotary drill

Produced by cutting or grinding action of hydraulic fracturing benefits‍the rotating drill bit broken rock. Is the most common methods of drilling. Beaton diamond drill fast, and easy to handle well collapse, blowouts and other complex situations. Press the power transfer mode, rotating the drill can be divided into rotary drilling and downhole drilling two types: rotary drilling device at the wellhead turntable rig, wheel well and the central part of the hole, the drill string side of the square hole through the kelly , then under kelly drill string and drill bit, drill string and drill bit driven when powered turntable rotates together, broken rock. Downhole drilling using downhole drill motor driven drill crushing rock, while drilling the drill string does not rotate, wear, life is short, especially suitable for directional well. Downhole drilling turbo drill, screw drill and electric drilling.

Drilling is the use of downhole drill turbodrill, rotary screw drill and impact drill by drilling fluids driven approach. Characterized footage quickly, WOB small, high pressure pump. Suitable for drilling directional wells or special hard bottom hole section.

Rotary drilling equipment by function into the system, improve the system, mud circulation system. Power and transmission and control systems.‍