Geological and technological justification of the parameters of acid-clay treatment of wells

The paper considers the influence of crank radius change on pumping unit kinematics during the dynamic fluid level control between tubing and casing in order to reduce the string fault rate. To improve the quality of prediction of these factors, the calculation of the movement of the polished rod over time is carried out using the Fourier variable separation method: the product of the balance bar head of a pumping unit defined as the movement of the slider of the pumping mechanism (in a straight line – like the chords of a circle), and the difference of such a chord with the length of the circle section equivalent to the movement of the articulated joint of the balance bar with the connecting rod. As a result, the accuracy of calculations is improved and the solution of the problem is simplified.

Section: Resultsmentioning

confidence: 99%

Influence of formation drilling conditions on the choice of well stimulation method

Gabzalilova

Garifullina

2022

“…Improving the efficiency of managing the development of oil deposits is based on the study and formalization of various processes aimed at extracting liquid hydrocarbons [1][2][3][4][5][6][7][8][9][10]. One of the given processes is the intensification of oil production with the application of impact on the bottomhole zone using hydraulic fracturing treatment.…”

Section: Introductionmentioning

confidence: 99%

Forecasting the hydraulic fracturing efficiency when selecting wells for an event

Valeev

Mukhametshin

Anisimov

2022

To this date, most of the oil and gas reserves are hard-to-recover, that is, they are located in deposits confined to low-permeability reservoirs. Hydraulic fracturing treatment (HFT) is one of the methods of production stimulation that allows making the oil recovery profitable from such reservoirs. The given article discusses regression analysis to predict HFT efficiency and select candidate wells.

“…Experience shows that the problem of intensification arises when opening productive formations in the process of drilling wells. It can be solved with the use of highquality drilling fluids, appropriate equipment and technological methods of well casing, which ensure reliable separation of productive formations and exclude clogging [1][2][3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

The structure of the oil-bearing strata and possibility of extracting oil from them

Akhmetianova

Bagmanov

Raymanov

et al. 2022

It is important to study the structure of oil-bearing strata is. In many ways, the structure of the Earth’s layers affects the possibility of intensifying oil production. This is one of the urgent problems of the oil industry. Obviously, at various stages of oil field development, methods of intensifying oil production, depending on the structure of oil-bearing rocks and geological and physical characteristics have their own features, which are manifested when they are used in the field conditions. Determination of the oil recovery factor (ORF) causes great difficulty in the operational assessment of oil reserves. At the stage of initial assessment, this indicator is taken either by analogy, or approximately. In order to make this parameter more valid, the main factors influencing its formation were studied. The formula for calculating oil recovery factor takes into account three main coefficients: grids, displacement and waterflooding.