How to use properly in cross engineering?
Non excavation bentonite mud, directional bentonite drilling dado Guan Jian; compounding and application of mud; engaged in drilling engineering personnel can feel, drilling in the whole; on the basis of engineering, municipal engineering, usually clay, water (or oil) and according to the application; in different conditions, can be divided into the mud:
The effect of drilling fluid on drilling process can be summed up as:Protect the hole wall, balance the formation earth pressure, cool and lubricate drilling tools, provide the bottom hole power, hydraulic rock crushing, return the bottom hole rock sample and so on.
For sand, gravel, crushed zone of the underlying mechanical dispersion; using the following corresponding to the formation of mud mud required for normal use; using a sand and gravel layer in the mud; in the sand, gravel and broken strata with drilling hole, difficult to solve; the ratio of slurry protection and application of the Guan Jian mud hole in drilling engineering personnel can feel, drilling fluid plays in the whole drilling engineering is how a character. It is in the field of geological engineering investigation, petroleum, natural gas drilling, groundwater and other resources drilling, mining, drilling, engineering, geological drilling, construction of basic projects, geological disaster control and other fields.
