DEVELOPMENT OF AN EXPERIMENTAL SETUP FOR CONDUCTING RESEARCH ON THE PROCESSES OF TRANSFERRING LOAD ON THE BIT AND TRANSPORTING CUTTINGS IN HORIZONTAL WELLS

Abstract

An analysis of the technological factors that arise when drilling horizontal wells related to the transfer of load to the bit and cleaning the wellbore from cuttings is carried out.The purpose of the work is to develop an experimental setup for conducting research on the processes of transferring load to the bit and transporting cuttings using a combined drilling assembly and mechanical cleaning devices when drilling wells with a long horizontal section.Main tasks:– analysis of technological factors that arise when drilling horizontal wells related to the transfer of load to the bit and cleaning the wellbore from cuttings;– planning of research on rational spiral fins of the lock-centralizer-turbulator and selection of geometric dimensions for modeling; – development of an experimental setup for conducting research on the influence of spiral fins of mechanical cleaning devices on the process of transporting sludge in the annular space.It is proposed to use a combined drilling assembly with the use of mechanical cleaning devices, in particular the design of a lock-centralizer-turbulator, which makes it possible to improve the cleaning of the horizontal part of the wellbore due to turbulization of the flow of the drilling fluid and lifting of cuttings to higher areas. flow rates. To substantiate the effectiveness of using this arrangement, planning was carried out to conduct research on rational spiral fins of mechanical cleaning devices and select the geometric dimensions of the simulation. An experimental installation was designed, manufactured and put into operation to conduct research on the processes of transferring load to the bit and cleaning the well from cuttings.