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Basic methods of intensification of oil and gas production and
injectivity of injection wells and reagents which are used. Acid
action on the formation. Acids and components of the acid
solution. Methods of acid action and basic reagents for carrying
out of them. The reagents used in hydraulic jet perforation and
hydraulic fracturing of formation. The treatment of bottom-hole
formation zone by means of surfactant solutions. Directed and
selective methods of action on the productive formation.
Complications during wells operation and reagents used for
prevention of their formation. Repair-isolating works and reagents
used in this process. Limitation of water inflow into the wells
and reagents used in this process. Reagents which are used in
the system of gathering and treatment of oil and gas and methods
of their usage. [1, 2, 4, 6, 9, 10, 11, 12].

Control questions

1. What does the term “bottom-hole formation zone” mean
and how does its state affect the production rate of the well?
2. Name and characterize the chemical agents used to
intensify the inflow of hydrocarbons.
3. Name and characterize the chemical agents used in the
processes of oil and gas production.
4. How does water affect the filtration properties of reservoir
rocks for hydrocarbons during the drilling and operation of wells?
5. Name and give a brief characteristics of the main methods
for increasing the productivity of wells.
6. The essence of the hydrochloric acid treatment of wells
and the main reagents used in this process.
7. Reagents-additives to hydrochloric acid solutions.
8. Inhibitors of corrosion for hydrochloric acid treatment, the
main properties of them and requirements to them.

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