Geodynamics

Skakalska, L.; Nazarevych, А. V.

doi:10.23939/jgd2015.01.099

Cited by 2 publications

(3 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The theoretical relations were obtained for the calculation of elastic parameters of each layer (Fig. 1, a) of the well section [Skakalska, 2014a,b;Skakalska, Nazarevych, 2014, 2015b, 2016a,b, 2018Skakalska et al, 2017]:…”

Section: The Basic Variant Of the Theoretical-empirical Predictive Tementioning

confidence: 99%

“…In the column «Predicting by the technique», the colours indicate the type of the pores filler in each layer: gas -yellow, water -blue. The column «Porocity», «V S» , «V P» , «V S /V P » shows the change of these parameter values, according to the prediction by the technique [Skakalska, 2014a,b;Skakalska, Nazarevych, 2015b, 2016b.…”

Section: Variant Of the Technique Involving Data Of Electric Logging mentioning

confidence: 99%

“…The prediction is made by the basic variant of the technique (Fig. 9) [Skakalska, 2014a,b;Skakalska, Nazarevych, 2015b, 2016b. A depth of the interval, the type of the pore filler (gas) and porosity are correctly calculated -the result of the theoretical and empirical technique coincides with those of industrial geophysics [Kurovets et al, 2012;Krups'kyy et al, 2014].…”

Section: -Ludyns'ka Wellmentioning

confidence: 99%

See 2 more Smart Citations

The theoretical-empirical technique of hydrocarbons prediction in wells sections. New aspects

Skakalska¹,

Nazarevych²,

Kosarchyn

2021

GZh

View full text Add to dashboard Cite

We present the developed theoretical-empirical technique for predicting of rocks’ oil-and-gas bearing in wells sections according to acoustic logging (AL) and core research (CR) and its variants by using data of other loggings and also the results of testing them on wells sections data in the Western oil and gas bearing region of Ukraine (WOGR). The mathematical apparatus of the created technique is based on a mathematical model of solid porous rock, empirical relationships between elastic and reservoir characteristics of rocks and acoustic logging data for specific studied wells. The key parameter in the calculations is the rock compressibility. Determination of the porosity of rocks and prediction of the type of pore filler (water, oil, gas) is implemented by comparing the results of calculating the velocities using theoretical and constructed empirical relationships with the actual data of the AL, by the parameter of compressibility of rocks, by the density of the pore filler fluid. Additional versions of the technique have been developed based on correlation dependences and data from other logging methods — gamma-ray logging (GL), electric logging (EL/SP), offset method and seismic logging (SL). They are used in case of absence of AL data for the studied wells or for the intervals of their sections, and also for improving the reliability of prediction the oil and gas content of these sections. The software for the implementation of the technique was developed in Fortran, C# and Excel software environments. The technique was tested on the data of wells of a number of structures of the WOGR of Ukraine (Lishchyns’ka, Buchats’ka, Ludyns’ka, Zaluzhans’ka, Zarichnyans’ka and Nyklovyts’ka).The technique ensures reliable prediction of petrophysical characteristics, porosity and oil-gas-water saturation of rock layers of different thicknesses (including thin layers — from 0.1—0.2 m) in well sections. For this, in addition to the data of the general parametric base of the WOGR reservoir rocks, the specially constructed refined empirical relations for various specific types and subtypes of the WOGR reservoir rocks are used, they are based on the results of analysis of petrophysical characteristics of those rocks.

show abstract

Section: The Basic Variant Of the Theoretical-empirical Predictive Tementioning

confidence: 99%

Section: Variant Of the Technique Involving Data Of Electric Logging mentioning

confidence: 99%

Section: -Ludyns'ka Wellmentioning

confidence: 99%

See 1 more Smart Citation

The theoretical-empirical technique of hydrocarbons prediction in wells sections. New aspects

Skakalska¹,

Nazarevych²,

Kosarchyn

2021

GZh

View full text Add to dashboard Cite

show abstract

Estimates of Fracture and Permeability of Rocks in Well Sections According to the Predicting Method

SKAKALSKA,

NAZAREVICH,

KOSARCHYN

2023

VKNUGEOL

View full text Add to dashboard Cite

The article is devoted to highlighting the methods of studying the petrophysical characteristics of rocks using the developed theoretical-empirical method for predicting the oil and gas capacity of well sections and their results. As a part of the predictive method, methods for determining a number of important petrophysical characteristics of rocks in well sections were additionally developed. In particular, cracking and permeability of rocks is estimated by the indicator of crack opening – the Qside parameter, the strength of rocks is estimated by volume density and velocities of elastic bulk waves, and the types of rocks in layers are determined by a set of petrophysical parameters, including the density of the solid phase of rocks. The determining results of these parameters in sections for wells 4-North-Zarichnyans'ka and 1-Lishchyns'ka, are given.

show abstract

Geodynamics

Cited by 2 publications

References 5 publications

The theoretical-empirical technique of hydrocarbons prediction in wells sections. New aspects

The theoretical-empirical technique of hydrocarbons prediction in wells sections. New aspects

Estimates of Fracture and Permeability of Rocks in Well Sections According to the Predicting Method

Contact Info

Product

Resources

About