PROTECTING DEVICE AGAINST DRILLING OF A LOCKWEBER GEORGBUDENBENDER THEODORROTH ERNST
The parallel cut is a key technique for excavation of tunnels. Based on the theoretical analysis and the field test, through an approach to the mechanism o... G Min,YP Liu - Second International Conference on Electric Technology & Civil Engineering 被引量: 0发表: 2012年 ...
The first section, BHA including drill collar that is a rock breaking tool and drill bit where the BHA is heavy with a thick walled hollow tube used for drilling fluid being pumped down through it and circulated back up the annulus (the void between the casing and the drillstring). The ...
A lock-up phenomenon can occur as a result of such buckling, which can cause accidents that impede drilling. In this study, multi-objective optimization was performed to reduce the risk of buckling in the drilling trajectory and its length. The main conclusions of this study are as follows: ...
(R&D) activities, to develop innovative solutions for drilling services. Halliburton Inc. is a U.S.-based servicing company operating in the oil and gas industry across the globe through a chain of subsidiaries and affiliates. The company is focused on increasing its foothold in the hydrocarbon ...
The machine lock bar rotary drilling rig uses hydraulic crawler-type telescopic chassis, self-lifting and folding collapsible drilling mast, telescopic drilling rod and many other technical applications. It is a construction machine suitable for hole formation in building foundation engineering. Main...
The tool to draw a buried pipe (1) through a pilot drilling locks the pipe to a rod (4) to pull it through, with an abutment plate (3) and relative movement between the rod and the plate. A crank push drive has one end (10) secured to the rod, and the other end (7) lies ...
The machine lock bar rotary pile drilling rig uses hydraulic crawler-type telescopic chassis, self-lifting and folding collapsible drilling mast, telescopic drilling rod and many other technical applications. It is a construction machine suitable for hole formation i...
For 1050W AC impact drill and all kings of DC impact drill Sizetype of connectionDLWeight mm(inch)Taper mountmmmmkg 2-13(1/13-1/2)1/2-20UNF43590.19 Hangzhou Fanxi Tools Co., Ltd. 4.0 Start Order Request Contact Supplier Click here to contact the supplier through an inquiry. ...
However, a significant breakthrough with this material has not yet been made, and major technical problems continue to hinder the economic and large-scale development of unconventional oil and gas. Here, the international frontier external method, which only improves drilling fluid inhibition and ...