drill pipe of rotary excavator

drill pipe of rotary excavator

Correct cleaning method for drill pipe of rotary excavator shared by.

When cleaning the drill pipe of rotary excavator, the reason of sediment at the bottom of the hole should be understood firstly.

6. returns the second footage too large, loaded too full, muck extrudes from the drain hole of the top cover.

According to the characteristics of rotary drilling rig, we have worked out two kinds of hole clearing methods and obtained good results.

At the same time, we can also by changing the proportion of sludge and mud soil and increase or decrease the viscosity of the slurry to control the speed of soil sludge settling velocity, for example, we try to reduce the soil sludge settling velocity, the preparation should be adapted to increase the density and viscosity mud, on the contrary, we can reduce the density and viscosity to speed up the settlement of soil slag rotating drill.

Hole bottom sediment can't standard to do, so we must develop a hole cleaning, otherwise the large amount of settlement of pile top and bearing limit value is reduced, rotating drill hole cleaning settlement and displacement method, commonly used method is the so-called sedimentation method, after the end hole for soil slag precipitation to the bottom of the hole to hole cleaning, and replacement method is in the final hole on the bottom of the hole cleaning, immediately after the residue in soil has not been deposited from the mud before the hole with a new configuration of mud mud displacement in a way outside the hole.

And reverse circulation drilling, for use in pulp hole cleaning is appropriate, because it can take advantage of itself of the rotatingto carry on the positive and negative circulation in pulp, and spin dig with drill pipe does not transfer the function of the circulating fluid, want to use the method of black hole, also need to make pipe and the corresponding rotating drill equipment, this is obviously not feasible, and the settlement method is often used catheter suction pump, air lifting method, method of submersible slurry pump.

There are also some problems in the use of these methods, mainly the influence range of slag suction mouth. When the aperture is 1.5 meters, if the position of slag suction mouth cannot be moved or there is no tool agitation at the bottom of the hole, it is difficult to remove the slag away from the radius.

Other supplier products

	high strength sucker rod	Grade HY Sucker Rod Grade HY Sucker Rod Description If you have any question on Grade Hy Sucker Rodand Api Solid Sucker Rods. We will give the pr...
	oilfield drill pipe	oilfield drill pipe Drill pipe plays a decisive role in the process of drilling, it transfered the drilling torque to drill bit, inordertodrilling...
	Hexagonal Kelly	Kelly is located in the top of the drill string, with square and hexagonal.In rotary drilling, when it is drilling, kelly connected with square bus...
	oilfield drill pipe	oilfield drill pipe Drill pipe plays a decisive role in the process of drilling, it transfered the drilling torque to drill bit, inordertodrilling...
	high tensile strength	If you have any question on Grade Hy Sucker Rodand Api Solid Sucker Rods. We will give the professional answers to your short questions. Grade HY S...

供应产品

Same products

	贵州中钻T45 T51 螺纹钻头	卖方: 844239	SINODRILLS Threaded Button Bits With the top quality of alloy steels imported from USA and the b...
	SF1 Smart Scale	卖方: Shenzhen Yan Xing Science & Technology Co., Ltd.	SF1 Smart Scale SF1 is our star smart body fat analysis scale. This body fit smart scale has a s...
	Mining and Minerals	卖方: Bolian filtration solutions	Filter Fabric Used in Mining and Minerals Markets Applications One of the key points in energy...
	About Grinding Steel Balls grinding medias	卖方: 山东金池重工股份有限公司	We are a professional factory producinggrinding mediasabout 25years since1995with ISO9001,OHSAS18...
	About Grinding Steel Balls	卖方: 山东金池重工股份有限公司	DearManager: This isLeofromShandong Jinchiheavy industry joint-stockCo., LTD in China. We are a...