Increasing the efficiency of coagulant influence on improvement of bore mud properties

Abstract

Because of the growing mining of raw hydrocarbon deposits one observes the increase in the volumes of bore mud accumulation. By their chemical composition and hydrophysical properties they have a range of negative characteristics, such as high alkalinity and toxicity, lack of structure, hydrophilic nature, low airing, filterability etc. The indicated characteristics of such mud pits, estimated as thousands, exclude the territories from the biogenic substance circulation in the conditions of KhMAD and YNAD. This leads to the violation of normal functioning of the northern territories ecosystems. The studies have shown that the abovementioned negative properties can be removed using coagulants, phosphogypsum, in particular – chemical industry wastes. Large volumes of phosphogypsum are located in the town of Revda, the Sverdlovsk region. A comparative study of diatomite as an ameliorant-coagulant showed its low efficiency in comparison with phosphogypsum. However, the ignition and use of diatomite allowed us to increase filterability of the bore mud up to the level of phosphogypsum or even higher. At the same time, it should be taken into account that in the north of the Tyumen region there were found enormous deposits of diatomite. Its use in the ignited form can be carried out under the production of building materials and coagulants as by-products.