This article describes operations from the well construction cycle where the cement rock behind the casing is subjected to dynamic action (impacts of the drill stem during drilling and normalization of the cement sleeve, secondary drilling operations, hydraulic fracturing, etc.). The developed cement mortar compositions were tested following API 10B-2, API 10B-6, API STD-65-2, and GOST 28985-91 standards. The composition of the cement system without the use of imported components (CM-5) was developed, which improved elastic and strength properties compared to existing industry solutions. An improvement in the elastic and strength features and technological properties of cement rock when using epoxy resins was identified, the optimal composition of the cement-and-epoxy grout was determined, and the internal structure of the formed backfill rock, its permeability, and porosity were studied.
The ecological role of forest soils is disclosed and a cadastre assessment of forest land is given. For cadastral assessment of forest land should pay special attention to the soil fertility forest plantings.
The article is devoted to identifying and analyzing the strengths and weaknesses of modern methods and techniques of state cadastral valuation of human settlements in the existing housing market of small and medium-sized towns of Russia.
The author of the article identified the dependence of the share value of the lanв common property on the market value of land gardening noncommercial organizations Leningrad’s region. For example of determining the value of the land by the selection of a single value of the property. Dependence of the deviation of the result obtained by the method of allocation of the share value of the land common property is illustrated.
It is considered the mechanism of formation of cracks of the round closed outline at action on breed of an individual chisel cutter. Pressure hinks arising on a face are investigated. Recommendations about designing of chisel crowns are made.
The analysis of design data of diamond crowns is made. Feature of work of diamond crowns is noted at drilling of rocks, principal views of deterioration of diamonds and a matrix. Are given rekomendatsi on perfection of diamond crowns.
The classification of different diamond bit types for drilling of jointed rock is offered. It is based on two predominant types of wear: mechanical and thermo physical. The facial and lateral on matrix body as well as cracks along the matrix body, spalling of the matrix sectors and normal wear are attributed to the mechanical type of wear. The proposed classification includes main types of wear at jointed rocks drilling and creates the grounds for the designing of rock-distributing tool more resistant to mechanical and thermo physical wear.
For rural settlements in Russia today is characterized by poor living conditions, their ac- complishment should be engaged in local government. However, the system of land registration at the municipality does not perform all assigned to municipal functions. We develop a system of indicators of land records, which is implemented using MS Access.
Stability of viscoplastic rocks (clays, salts, ice) in the walls of deep wells can be evaluated based on the theory of aging (steady-state creep), for which we propose a proven in practice methodology for determining the stresses on the contour of the wellbore section, radial displacements of points on this contour and their speed.
The mass valuation of real estate does not allow taking into account individual features of buildings that can have a significant impact on the value of the object. In this case certain difficulties arise in the calculation of functional depreciation. The method of operative definition of functional depreciation of real estate with the use of compilations of consolidated indicators of restoration value is suggested.
