All large capacity drilling projects such as oil gas drilling, no dig drilling for pipeline laying and water well drilling need drilling fluids when doing the drilling job. There is one type equipment naming shear pump that is an ideal choice for drilling fluids mixing. We could see the drilling fluids as the blood of the drilling equipment.
Here, how to make the drilling blood clean and let the blood perform well is so important to all the drillers. It is known that the drilling project need a drilling fluids recycling system, or we call it mud recycling system. Before start drilling, we need get the mud recycling system ready. On the other hand, we need the drilling fluids to be ready. The drilling fluid is a mixture of water/oil and some mud materials like barite, bentonite, and some other chemical agents. Among the various mud materials, the bentonite is the most important one and the consumption is quite big. Meanwhile, the bentonite is also a polymer which is difficult to solve into the drilling mud base.
Then how should we resolve this problem? Bingo! We need a shear pump. Thanks to the special design of the impeller, the shear pump could cut the polymer into very small pieces so that these materials could solve into the water easily. A high efficiency shear pump could make the consumption of bentonite reduce 30%. Oh my god! Really a large cost saving.
This is not the only advantage to use a shear pump to cut the polymers. Once the drilling started, the solids control equipment will also start running. When the used drilling fluid comes out from the well whole and flow into the shale shaker, the mud recycling process is beginning. If there is much long strips material in the drilling fluids, the screen will be blocked which leads to loss of polymers.
One thing the drilling fluids engineers need pay attention is the shear pump cannot run without fluids inside the pump. As you know, the shear pump is use centrifugal type pump, it need run with liquid to reduce centrifugal force so that the fluids can be transferred continuously. One more, the shear pump cannot be used to transfer used/active mud, as the cuttings in the used mud will definitely damage the pump parts.