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ESPROENKO EXPORT SL. We get all the data needed for the job, select the samples, making laboratory analysis of fluids. ESPROENKO EXPORT SL. Complex approach to increasing the productivity of wells. HOW DO WE WORK ?.

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slide2
We get all the data needed for the job, select the samples,

making laboratory analysis of fluids

ESPROENKO EXPORT SL

Complex approach to increasing the

productivity of wells

HOW DO WE WORK?

  • Get all the data needed for the job, select the samples,
  • making the laboratory analysis of fluids
  • Get all the data needed for the job, select the
  • samples, doing laboratory analysis of fluids
slide3

ESPROENKO EXPORT SL

SHARE OF MAIN DIRECTIONS OF THECOMPANY’S ACTIVITY, %

the products of the company
Multi-component acid compositions for well treatment

Reagents for thermodynamic processing

Reagents for elimination of irrigation reservoirs

Reagents for elimination of the annular flows

Surfactants for the processing and development of chinks (liquid and solid)

Corrosion inhibitors, hydrate formation and ASPV corrosion inhibitors, hydrate formation and ASPV

Cleaning reagents

Installing ultrasonic processing wells

THE PRODUCTS OF THE COMPANY

ESPROENKO EXPORT SL

technology of the company
Improving well productivity using:TECHNOLOGY OF THE COMPANY

ESPROENKO EXPORT SL

  • Acid treatments
  • Water-isolating compositions
  • Heat treatments
  • Reagents for removing of hydrocarbons in PZP
  • Suppression and exploration of wells using special solutions
  • Protection of wells from corrosion and formation of hydrates
  • Ultrasonic treatment using installations of оwn production
higher productivity wells inactive dispersed systems of powdered reagents

ESPROENKO EXPORT SL

HIGHER PRODUCTIVITY WELLS INACTIVE DISPERSED SYSTEMS OF POWDERED REAGENTS

The effectiveness of using the nitricacid and substances on its basis enables:

- effective reaction with the layer;

- products of reaction with the layer reduce the viscosity of oils

with a large content of asphalt and tar components;

- produce the de-emulsifying effect on the watered layer oil.

slide7

To prevent the corrosive effects of acids in the borehole equipment it is transferred to an inactive form.-nitric acid with urea-urea nitrate salt forms a (NC) for response:HNO3 + CO(NH2)2 [CO(NH2)2HNO3].

ESPROENKO EXPORT SL

Urea nitrate – a white crystalline substance with density of 1746 kg/cu.m. Corrosion activity of the powder:wet (dry)-3989 g/m 2-hour at 0.37% water content-0.06 g/m 2-hour.

content of nitric acid in dry product- 48%

Fig. 2. Dependence of urea nitrate corrosion changes on temperature

slide8
Nitrate urea (urea complex nitric acid) is resistant to its physical and chemical composition of up to 110° c.

ESPROENKO EXPORT SL

  • During the dilution with water there is a gradual breaking down of urea into nitrate source with formation of products-nitric acid and urea. This makes it possible to increase the depth of the layer when exposed to complex, compared with pure acids.

Fig. 1. The dependence of solubility of urea nitrate changes in water on temperature

slide9
Since the destruction of the complex by diluting it with water, declining concentrations of nitric acid in solution, then choosing one or another degree of dilution is adjustable and depth of productive layer acid exposure.

When you make a reagent in excess, you can maintain the concentration of nitric acid in solution-4.8% -26.5.

The dependence of concentration of nitric acid on the temperature of the fluid is described by the following formula:

Cнк = 0,000074T3 - 0,012T2 + 0,885T - 8,6

where T is the temperature of the solution, С.

Urea has the ability to improve the wettability of the rock, increasing the effectiveness of acid exposure during removal of reaction products of bottom hole formation zone pore space.

ESPROENKO EXPORT SL

slide10
Urea nitrate for delivery to the bottom hole of the well and the impact on the bottom area of productive layer, use organic liquid:

anhydrous oil,

heavy oil,

light oil,

condensate.

Solvent power of urea nitrate relative to urea quartz and clay minerals (fig. 4):

in 9 times lower than HCl;

the 4.5/ -5.5 times lower than HNO3

ESPROENKO EXPORT SL

slide11

ESPROENKO EXPORT SL

Urea nitrate and compositions on its basis can be used to increase the productivity of sand collectors and injectivity of injection wells because urea is pretty well dissolved silicate making up species (table 1).

Limitations depending on lithological compound rocks, as in the case of using hydrofluoric acid, are missing.

Fig. 4. the dependence of change of velocity of dissolution of marble in solutions of hydrochloric acid (1), nitric acid (2) and (3) urea nitrate concentration

slide12

ESPROENKO EXPORT SL

Table 1.

DISSOLUTION OF CLAY MINERALS AND QUARTZ IN ACIDS

slide13
Field tests conducted in enterprises:

-"Chernigivnaftogas" OIL &

-GAS PRODUCTION were “Dolina”(Ukraine),

-Dzunuanskom oil and gas enterprise (China),

-Enterprise oil and gas Zelenogurskom (Poland)

All work has been performed at wells in which the previous conventional acid treatments were ineffective or not effective.

The tested mixtures of liquid and powder acid:

-urea nitrate, acetic, hydrochloric acid, phosphoric and

hydrofluoric acids (hydrofluoric acid).

ESPROENKO EXPORT SL

slide14
Urea nitrate in powdered and sucked into the well as a disperse system in hydrocarbons. the anhydrous -1.0 0.5 toes per 1-3 M3 in layer 5-10% nitric acid concentration.

Calculation of acid composition:

-acid baths of acid solution is equal to the volume of

work a chink of slaughtering up to the roof of the

reservoir;

-when the first data processing of specific consumption

of acidic composition is 0.3 -0.5 m3 on 1 m thickness

(running);

-at the second treatment- -1.0 0.6 M3/m;

-when the third processing- -1.5 1.1 m3/m.

ESPROENKO EXPORT SL

slide15
The results of the technological operations are given in tables 2-6.

Technology is effective for classic and carbonate reservoir.

Effective for the pore and cracked, as well as the cracked reservoir.

Use is possible in a wide range of depths, pressures and temperatures.

Applies to deposits of both conventional and high-viscosity crude oils in various climatic conditions.

Field tests have proved high efficiency technology and feasibility of its application.

ESPROENKO EXPORT SL

restricting the flow of water in the well managed magnitoaktivnymi dobyva in disperse systems

ESPROENKO EXPORT SL

RESTRICTING THE FLOW OF WATER IN THE WELL MANAGED MAGNITOAKTIVNYMI DOBYVAÛŜIN DISPERSE SYSTEMS

slide22
Effectiveness of GTS in production wells depends upon the possibility of withholding agents in aquifer of insulating the manifold.

Therefore, typing in an insulating liquid substances and was giving it a magnetic operated liquid property, you can deduct magnetic active insulating solution of magnetic field in the aquifer of the collector-in hole, permanent magnet

ESPROENKO EXPORT SL

slide23

ESPROENKO EXPORT SL

The well device is connected by a parallel set of permanent magnets 1 (fig. 2) included in the magnetic circuit using two magnetic circuits 2. Permanent magnets are shifted relative to 1 magnetic circuits 2 and non-working face that increases the resistance to flow out of the butt end of a magnetic tape system and leads to a redistribution of the magnetic the flow towards the working face.

Elementary magnet systems are placed around the circumference of a cylindrical magnetic enclosure 3 and pointing at each other to strengthen the magnetic field on the surface of the device by "pushing out" the last out.

To prevent bypass surgery within the magnetic system of permanent magnets filled cavity sealing nonmagnetic material, elementary magnet systems are placed around the circumference of a cylindrical magnetic enclosure 3 and pointing at each other to strengthen the magnetic field on the surface of the device by "pushing out" the last out. To prevent bypass surgery within the magnetic system of permanent magnets filled cavity sealing nonmagnetic material.

slide24
Schematically the process isolation in water production wells is implemented as follows.

Secrete oil-and water-saturated reservoir intervals.

Prepare an aqueous solution of polyacrylamide with addition of substances, magnetic-active alkali metal carbonate and surfactant, aqueous solution polyvalent metal.

Flushed down the saturated magnetic field generator shooting interval (SGMP).

Tie the wellhead with special equipment and pump into a well insulating solution.

Then stir up the solution of water-soluble salt two-or trivalent metal.

This is a solid structure that prevents entry of isolating water in the well.

The waterproofing barrier of magnetic active particles of matter under the influence of a constant magnetic field effectively isolates the water-bearing stratum of.

ESPROENKO EXPORT SL

slide25
The formation of a solid structure is contributed by:

-presence of magnetic active substance in a polymer solution;

-formation of cross-linking in the polymer;

-deposition of insoluble precipitate by reacting alkali metal carbonate and soluble salts of polyvalent metal which provides reinforcement and bolsters a structure of oil well screen

3Na2CO3 + Al2(SO4)3 + 3H2O 

3Na2SO4 + 2Al(OH)3 + 3CO2;

-formation during the reaction sintering carbon dioxide surfactant.

Based on these studies in fishing practices it is possible to implement the following process flow diagrams-insulation of cracks formation and isolation of a watered formation interval.

ESPROENKO EXPORT SL

slide26
On the proposed schemes of technological processes of exclusion and limits inflows of water in wells were tested in several fields of Ukraine, Russia, Bulgaria, Poland and China.

Technology is widely tested on fields with different parameters and enclosing fluid layers:

West Siberia-Var′eganskoe (2193-2320 m)

Ukraine-Lelyakivske and Bugrevatovskoe (1811-1845 m)

Bulgaria-Dolni dabnik (3225-3374 m)

Poland-Yaroslav (920-950 m)

China-Huczuanczi and Venmincze 1708-2679 m and 1405-1701 m

Range of reservoir pressures and temperatures in tests was 5.6 -33.5 MPa and 32-105° c.

On how well subdivided gas lifting travelling sucker ((SSHN)) and electric central type pumps (PÈCN pumps).

ESPROENKO EXPORT SL

slide29

ESPROENKO EXPORT SL

S-water restrictions with the use of magnetic active substances

slide30
To increase the strength of water isolation barrier creates layered barrier:

downloading fringes, polymer, foam or plastic and foam;

fixing the Coyote magnetic active suspension and fixation of magnetic field.

Flow chart of a process is implemented as follows.

The wells produce polymer, or foam, or polymer and foam formulations and magnetic active suspensions.

Flushed down the water flow interval SGMP

Spend download at near well area consistently polymer solution, or foam, or polymer solution and a foam, and then magnetic active suspension.

ESPROENKO EXPORT SL

Create a layered water isolation barrier

slide31
On the proposed method in the Bugrevatovskom field of JSC "Ukrnafta", two of the GTS.

ESPROENKO EXPORT SL

slide32
The developed technology is based on the ability of the magnetite particles under the influence of a magnetic field generated by them themselves (without magnetic field exposure) to create an ordered system, strengthened by creating long chains that form a sort of "bundles" of disperse particles and thickened by an insulating mortar.

ESPROENKO EXPORT SL

Application of magnitoaktivnyh dispersed systems with insulation behind-overflows

slide33
Isolating this dispersion system uses clay powder and polyacrylamide solution laced with surfactant and magnetic active substances, mass%:

clay powder 5-10;

polyacrylamide 0.5 -1.0;

surfactant 0.01 -0.05;

the substance was 20-60; water – the rest.

Magnetic active substances used as a weighting agent used in glandular drilling.

To increase the corrosion resistance of casing pipes particles magnetic active substances (ferromagnetic), placed in microcapsules in mixtures with corrosion inhibitor.

Shell microcapsules made of permeable material and can release the oil-soluble corrosion inhibitor.

ESPROENKO EXPORT SL

slide34
The technological process is implemented.

In the interval of the beyond column circulation part casing.

The wells produce slurry backfilling material with ferromagnetic microcapsules containing corrosion inhibitor. Tie well and spend a download at near well area and beyond column suspension prepared.

After pumping the well allowed to work.

The waterproofing barrier inhibited the flow of water from the aquifer formation and circulation of the beyond column space.

Ferromagnetic microcapsules with corrosion inhibitor deposited on the outer surface of the magnetized casing pipes and pipe solid form on the surface protective film that prevents the development of corrosion processes.

The offered technology of isolating processes were held behind-flows at wells of the Var′eganskogo oilfield, located in Western Siberia, and the deposits located in Bulgaria Bohot. The results of this work are presented in table4.

ESPROENKO EXPORT SL

slide35
The use of technology is possible in a wide range of depths, pressures and temperatures. It is applicable to deposits of both conventional and high-viscosity crude oils in various climatic conditions.

ESPROENKO EXPORT SL

slide36

ESPROENKO EXPORT SL

Stages of thermal and gas dynamic

impact on the

productive layers of oil wells

slide37

ESPROENKO EXPORT SL

1- Productive layer prior to treatment

1 – Obsadnamarble column;

1

2

3

4

2 – NKT;

3 – Perforation holes

4 – Productive stratum

slide38

ESPROENKO EXPORT SL

2- Combine the fuel oxidation and

hydro-reacting process mixtures at bottom wells

5 – hydro-reacting composition

5

6

6 – Fuel oxidation composition

slide39

ESPROENKO EXPORT SL

3- The process of burning chemicals

in the perforation interval

7 – burning centre

7

slide40

ESPROENKO EXPORT SL

4- Change the column and reservoir after the processing

8 – Area of impact on the layer;

8

9 – Increase of cracks in the productive layer

9

slide41

ESPROENKO EXPORT SL

TECHNOLOGY OF TERMOGAZIFIKACII DROPPED OUT OF HYDROCARBONS

Depresion crater formation with loss of liquid hydrocarbons in reservoir

slide42

ESPROENKO EXPORT SL

Downloading the thermochemical composition

The reactionary mixture on bottom and move it into the layer

slide43

ESPROENKO EXPORT SL

Seam zone after processing

tehnologi intensifikacii doby i uglevodorodov block plastovyh putem tributary waters
Provides for the selective isolation of formation water reservoir amine complexes that create with fresh formation water insoluble inorganic compounds do not diminish productivity, productive zone.

Technology is widely introduced and recognized at the gas-condensate fields of Ukraine. During the implementation of advanced, more than 350 million was extracted Ministry of gas and 50 thousand. tons of liquid hydrocarbons.

TEHNOLOGIÂ INTENSIFIKACII DOBYČI UGLEVODORODOV BLOCKPLASTOVYH PUTEM TRIBUTARY WATERS

ESPROENKO EXPORT SL

slide45

ESPROENKO EXPORT SL

ADVANTAGES

  • Technology allows you to:
  • create indestructible barrier by Crystal-forming impurities;
  • increase output of hydrocarbons by changing the surfactant properties of the rocks;
  • keep the duration of isolation – not less than 2-3 years.
  • the insulation works needs to attract teams not refurbished;
  • reagents used-corrosion and environmentally safe.
slide46

ESPROENKO EXPORT SL

Stages of technological process of formation

water influx isolation in productive stratum

1

1-lifting of the cone formation water in the zone of the perforation interval

slide47

ESPROENKO EXPORT SL

2

2 – nagnetanie natural Strip for ottesneniâ cone obvodneniâ

slide48

ESPROENKO EXPORT SL

3

4

3-download blocking solution;

4-pumping of a blocking with a high pressure gas solution.

slide49

ESPROENKO EXPORT SL

5

5-insulating barrier of the marble-like structure

technology is the elimination of the annular gas flows
The use of technology provides:

improved sealing of production casing by increasing the depth of penetration Grouting mixtures in gas conductive channels.

achieved full blocking of gas conductive channels of small and medium sizes for a significant depth;

TECHNOLOGY IS THE ELIMINATION OF THE ANNULAR GAS FLOWS

ESPROENKO EXPORT SL

advantages
a wide range of formulations for different conditions;

with the Elimination of the annular gas flows are cheap and are not deficit reagents;

reduced costs and improved production standards upon liquidation of the tubing flows, because the works are carried out without killing the well and its future development.

TERM OF CONFINEMENT IS NOT LIMITED!

ADVANTAGES

ESPROENKO EXPORT SL

technology for extended reach wells of gas and gas condensate fluids
Field of application:

Gas and gas condensate fields, complicated irrigation wells.

Cleaning is achieved by the slaughter of gas and gas-condensate wells by filtering the liquid during operation and their self-suppression is avoided.

TECHNOLOGY FOR EXTENDED REACH WELLS OF GAS AND GAS CONDENSATE FLUIDS

ESPROENKO EXPORT SL

principle of operation
Formation at bottom wells of a double-phase foam upon contact with liquid sludge foaming composition, which is put on the surface of coal seam gas in the well.

Special foam composition is delivered to the bottom hole wells in the form of briquettes with soluble in formation fluid.

PRINCIPLE OF OPERATION

ESPROENKO EXPORT SL

secondary layers with simultaneous increase of autopsy filtration characteristics tunnel zone
SECONDARY LAYERS WITH SIMULTANEOUS INCREASE OF AUTOPSY FILTRATION CHARACTERISTICS, TUNNEL ZONE

ESPROENKO EXPORT SL

This technology is designed for opening low-permeability reservoir conditions to maximize the formation of well control fluid.

An autopsy involves operations in a multicomponent acid composition designed for simultaneous stimulation of hydrocarbons.

The technology can be applied to the secondary opening seams, cased for the perforation of the previously opened, and by moving to higher or lower located horizons.