This article provides an analysis and summary of the experience of using the gravity method for eliminating annular pressure in the wells of the subsidiaries and dependent companies of JSC NC KazMunayGas. The analysis used the actual data obtained immediately after the elimination of annular pressure in wells using a compositional composition on a hydrocarbon basis by gravity replacement of annular fluid.

This article analyzes the impact of an actual trajectory of a J-Type directional well with an early kick-off point on the values of torque and drag along the bore hole.The actual data collected while drilling the directional SU-2 well with a target depth of 5000 m (South Urikhtau field) was used for the analysis: trajectory survey data results of the well, actual bottom hole assemblies applied (dimensions, material and characteristics of the elements), the actual drilling mud parameters according the control acts, actual drilling parameters according the daily drilling reports and mud logging curves, etc.Calculations of torque and drag were performed on a specialized software Landmark, a comparative analysis was carried out with the design values of parameters and appropriate recommendations were issued.