The list of symbols and abbreviations.

m, m_от, m_дин – the coefficients of general, open and dynamic porosity;

_н, _в – oil – and watersaturation coefficients;

_но, _св – residual oil – and water saturation coefficients;

k_н, k_в – oil and water phase permeability coefficients;

k_н^*, k_в^*– oil and water specific phase coefficients;

χ^* – anisotropy coefficient;

_г, _эф – rock and effective pressure;

p₀ – initial formation pressure;

p – current formation pressure (in the disturbed zone, in depression funnel);

N – recoverable oil reserves;

G –geological oil reserves;

η_к, η(t) – project (predictable) and current oil recovery factors (ORF );

Q_нак(t), Q_тек(t) – cumulative and current oil production rate;

 – a share of the moving water in the formation in the total volume of filtering liquid;

- oil and water current pressure differentials;

v_в, v_н – oil and water filtration velocity;

q_в, q_н – oil and water volumetric filtration velocity;

µ_в, µ_н – oil and water dynamic viscosity coefficients;

f() – Backley-Leverett function;

– movement coefficient;

ε – hydraulic conductivity factor;

χ – piezoconductivity factor;

r_c – well radius;

R –external boundary radius;

ρ(t) – the disturbed pressure zone radius of the producing well or hydrodynamic displacement front of the injection well;

Q – the flow rate of the producing well or intake capacity of the injection well;

Δp^* – drawdown pressure, necessary to start the filtration of viscoplastic oil;

– Initial pressure differential;

PRP – pool-reservoir properties;

MORE – the methods of oil recovery enhancement;

PSM – production stimulation methods;

EOR(M) – enhanced oil recovery methods;

SAR – surface-active reagents;

IPC – injectivity profile conformance;

FFW – forced fluid withdrawal;

HP – high-permeability interlayer;

LP – low-permeability interlayer;

ISC – in-situ combustion;

FHF – Formation hydraulic fracturing;

Content

Introduction 3

Part 1. Oil fields development

Chapter 1. The concepts and parameters, determining the processes of hydrocarbon production……………… 7

1. The basic geological notions 7

2. Pool-reservoir properties 9

3. Heterogeneity and anisotropy of reservoir …..11

Chapter 2. Natural modes development of deposits…………………………..12

2.1 Rock pressure and effective pressure 12

2.2. Reservoir energy types 14

2.3. The main sources of reservoir energy 15

2.4. Operation modes of oil deposits 16

2.5. Elastic-water drive 17

2.6. Dissolved gas drive 17

2.7. Gas cap drive 18

2.8. Gravity drive 18

2.9. Combined drives 18

Chapter 3. Systems and indicators of oil fields development………………….20

3.1. Productive formation………………………………………………20

3.2. The reservoir recovery and oil recovery factor (ORF)…………….21

3.3. The well patterns – development systems of production facilities on natural recovery modes………………………………………………………….22

3.4. Enhanced recovery systems………………………………………...23

3.4.1. Oil displacement and sweep efficiency……………………………23

3.5. Field development systems………………………………………….24

3.5.1. Simultaneous production facilities development…………………24

3.5.2. Successive development systems…………………………………..25

3.6. Oil fields development parameters………………………………….26

3.6.1. Technological development parameters…………………………..26

3.6.2. Borehole grid. Wells’ density………………………………………26

3.6.3. Krylov’s parameters. Compensation factor. Water cut factor….28

3.6.4. Oil fields development rates……………………………………….28

3.6.5. Development stages of the production facilities…………………..29

3.7. Types of water flooding……………………………………………...30

3.7.1. Edge water flooding………………………………………………..30

3.7.2. Boundary water flooding…………………………………………...31

3.8. Circle water flooding…………………………………………………32

3.8.1. Direct line drive systems. Their varieties-block systems………….32

3.8.2. Grid water flooding systems……………………………………….34

3.8.3. Selective and Spot water flooding………………………………….35

3.8.4. Barrier water flooding systems……………………………………..36

Chapter 4. Formation physical models and displacement characteristics…….38