Fundamental principles and results of deep well lining

Abstract

Abstract The review of the theory and practice of the special technological fluids application is analyzed. On the example of a specific borehole, with an actual vertical depth of 3287 m, intended for opening horizons B-17v, B-17n and project B-21, measures to clarify the filtration and capacity properties of reservoir rocks, increase production volumes are considered of hydrocarbons and accelerating the rate of selection of mining reserves. Testing in the interval 3364 - 3337.6 m of the B-21 horizon by using a set of test tools KVI-95, objectively proved that the specified object is characterized as penetrating, gas-saturated, the activity of which is reduced by contamination of the near-outbreak zone of the seam. As a method of determining clogging, a cut of the working end of the core with a length of 1 mm was applied. According to the results of the interpretation of the materials of the geophysical research of the specified borehole, it was established that the seam fluid comes from the interval 3339 - 3344 m. The paper determined that a promising way to solve the issue of high-quality cementing is the application of composite tamponage systems in combination with advanced preparation methods of borehole shaft.