Depth analysis of friction welding drill pipe on drilling steps:

Classification:

Industry dynamics

Release time:

2020-07-10

【Summary Description】 The design of pipe sleeve can be said to be the highlight of drilling. Any well in the friction welding drill pipe drilling process often encounter several different geological, depth or emergency conditions, production and development needs, so it is necessary to several layers of casing to protect the well hole, in order to smoothly drill to the drilling target.
1. Lower pipe sleeve
The design of pipe sleeve can be said to be the highlight of drilling. Any well inFriction welding drill pipeDuring the drilling process, several different geology, depth or emergencies, production and development needs, etc. are often encountered, so several layers of casing are required to protect the well hole in order to smoothly drill to the drilling target.
The drilling hole is drilled by the hole well to a certain formation depth or level, the next layer of pipe casing, and then changed to a smaller size drill bit to drill. In the first phase, after drilling to 1500 meters with 171/2 "drill bit, 133/8" surface pipe sleeve can be inserted first, and only 121/4 "drill bit can be used for drilling, etc.
摩擦焊钻杆
2. tripping out and tripping in
In order to replace the blunt drill bit, or prepare to collect core samples, repair equipment, and plan to do other work in the well, it is necessary to lift the drill and the drill bit to the ground, then remove the blunt old drill bit, connect the newly selected new drill bit, and then go down to the original bottom hole to start drilling according to the reverse order of drilling.
The deeper the drilling, the more time it takes to trip, the less time it takes to actually drill, soFriction welding drill pipeHow to choose a good drill bit to increase the progress of drilling, reduce the number of tripping, shorten the construction period, is also the responsibility of the engineer.
3. Mud and Drilling
The characteristic of rotary drilling method is to use mud as the circulating fluid in the well. The earliest fluid used in drilling is water. As far back as ancient Egypt, when the Egyptians manually rotated the drill bit to drill a borehole with a depth of 20 feet in the quarry, they would use water to remove cuttings.
During the Zhou Dynasty in China (more than 1,100 BC), in some areasFriction welding drill pipeDrilling salt wells also uses water to remove cuttings. Water, can be said to be the earliest used for drilling mud. Until now, water is still the main component of mud. Especially in the low weight mud, water accounts for more than 85% of the total composition.

Key words:

weilida drill