The role of geological-technological researches (GTR) at drilling oil and gas wells is quite topical at present. Available techniques and mud logging equipment demand essential alterations and development of new approaches in carrying out of researches. Specific solutions, features of drilling modes and applied configuration of the drilling tool complicate researches of cuttings and mud. Hence, it is necessary to consider GTR data very attentively taking into account all features of well drilling. The variants of elimination or reduction of influence of the factors that impact research processes can be divided into three directions: А. Reduction of influence of technical and technological factors. The GTR contractor should be given complete data on equipment, technologies, chemical agents, possible effect of neighbouring wells, timely mud laboratory analyses on their influence on gas logging and geological-geochemical researches. B. Alteration and working out of new techniques of carrying out GTR. The task of creation and adoption of uniform standards on GTR activities, taking into account the features of the region of works, still remains unsolved. This problem concerns not only researches in lateral wells. C. Equipment and software improvement is crucial. GTR software and equipment producers periodically make various attempts to create new products in this sphere. There is a variety of worthy and rather perspective products by domestic and foreign companies. In horizontal bores carrying out of a standard complex of geophysical researches of wells is impossible today; only separate kinds of logging are applied, which cannot give unambiguous answers to all the questions. Still, mud logging is the most perspective direction of researches. There is a necessity of complex GTR and geophysical researches data interpretation accounting for all the features of drilling.

Рассмотрены особенности проведения геолого-технологических исследований и газового каротажа при бурении горизонтальных скважин на нефть и газ. Указывается на смещение приоритета решаемых задач. Предлагаются пути устранения или уменьшения воздействия негативных факторов, влияющих на информативность проведения исследований. Предполагается, что использование адаптированных для горизонтальных скважин методов ГТИ может позволить более качественно осуществлять проводку скважин и оптимизировать весь процесс бурения.