05-13

Knowledge analysis of groundwater structure

Water is the "source of life", an important condition for the survival of human beings and all living things, and an indispensable part of the human body.

05-14

Drilling related small knowledge:

There is always a process of sticking. In order to prevent sticking, the drilling tool is required to be frequently movable. Generally, the static time of the drilling tool shall not exceed 3-5 minutes.

05-20

What are the reasons for the drill pipe breaking during construction?

Several reasons for the broken drill pipe, Weida drill pipe to introduce:

05-24

What should be paid attention to when running casing during drilling?

The main matters needing attention in casing running operation are divided into three parts: site, gate front and wellhead.

06-02

Introduction to Fine Buckle Drill Pipe and Drill Pipe Joint of Weida Geological Drill Pipe!

I plant rod material selection of Shanghai Baosteel raw materials, not easy to fatigue bending or breaking, stable and reliable performance.

06-03

What are the precautions for drill pipes?

When the scratch mark on the drill pipe body is about 1mm deep and is in a spiral state for more than one turn, please use it with caution. Prevent the drill pipe from being broken during construction, causing greater losses.

06-04

The importance of drill bit drill pipe:

In the exploration and development of oil fields and coal mines, drill bits and drill pipes are indispensable, and they play an irreplaceable role in the mining process!

06-07

In what ways has the geological drill pipe helped mankind?

Under normal circumstances, because the underground environment is harsh, and in different areas, the composition of the underground soil and rock are different, so for the geological drill pipe, it is necessary to have the qualification to work in this complex underground environment.

06-09

What other tests are needed for finished drill pipes to leave the warehouse?

The drill pipe is a thin-walled pipe, which is subjected to axial force, bending moment, centrifugal force, torsional force and dynamic load during the drilling process, and the premise of the working condition is extremely harsh.

06-16

The new down-the-hole drilling opportunity has a running-in period, what are its characteristics?

Full attention should be paid to the use and maintenance of the running-in period of the down-the-hole drill and the impactor.

06-18

Relevant introduction of fine buckle drill pipe:

Fine buckle drill pipe is a kind of drilling tool that uses alloy steel pipe to thicken the head at both ends, turn small pitch taper thread, and connect with lock joint. It is used in geological exploration field, transmits drilling rig torque to bottom hole drill bit, and is responsible for transmitting drilling fluid. It is applied to geological exploration, water well drilling and geothermal well drilling engineering.

06-22

What are the specifications and materials of the most important trenchless drill pipes for horizontal directional drilling?

The steel grade of trenchless drill pipe is S135, which ensures the quality of trenchless drill pipe.

06-25

The guiding problem of hard soil layer, sand and pebble layer will be encountered in horizontal directional drilling construction.

The skill of starting operation, when the pilot drill bit passes through the sand, pebble layer and hard layer, when it wants to change the track direction, if it wants to push in blindly, it will cause the drill pipe to bend and the outlet of the horizontal directional pilot drill bit to be blocked. According to the working experience, the operation method of side pushing in with rotation should be adopted, for example, the direction should be upward, then the operator should control the feeding force when the drill pipe is about to bend.

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