The main role of drilling mud additives in drilling work

The main role of drilling mud additives in drilling work

① The use of drilling mud additives can keep the borehole wall intact prevent rock layer infiltration causing borehole collapse shrinkage;

② The use of drilling mud additives can lubricate drilling tools;

When drilling, use clear water clay to drill, to mention the problems that come one after another. When the hole was drilled to 100m, the drill bit was ready to be excavated, the drill rod was almost stuck. At this point, the drilling rig had reached high rotational pressure, the drill rod almost did rotate, the pull-back pressure had also reached a high level. The machine has definitely reached its capacity limit. In formations such as granite, basalt, dolomitic carbon slate, siliceous rock, the friction resistance of drill bits can cause significant damage to equipment.

③ Using drilling mud additives to ensure reasonable viscosity of the mud achieve suspended sand removal;

③ Using drilling mud additives to ensure reasonable viscosity of the mud achieve suspended sand removal; If the drilling chips are removed the hole, they will stay in the hole fill the drill rod, causing all three to stick together. The drill rod cannot rotate move, millions of equipment will be lost.

④ The use of drilling mud additives can ensure normal circulation of drilling fluid.

We all know that good drilling can also encounter loose formations, strong permeability, larger fractured formations that will be lost.

Mud experts our experience have confirmed that both oil fields geological exploration drilling should pay attention to the above four aspects.

In the practical drilling process, drilling workers need to determine the type performance requirements of the flushing fluid based on geological conditions geological characteristics, that is, suitable drilling fluid, which is a key factor in successfully completing a drilling project. The success rate of units contractors who do use drilling fluid is decreasing. The training of drilling operators is receiving increasing attention. It must be kept in mind that the mud performance shall meet the formation requirements, more cuttings shall be brought out of the hole when the drilling fluid flows, when the drilling fluid stops flowing, the gel suspension capacity of the mud can support the cuttings, so as to ensure that the cuttings in the hole will accumulate. The mud used requires the ability to form filter cakes around the holes, commonly referred to as "mud cakes". The thin tough mud cake will control the water in the drilling fluid to penetrate into the soil layer maintain the hole wall collapsing until the entire pipeline is pulled back.