To increase the efficiency of oil and gas production wells in already depleted fields, a technology is used that involves the use of specially developed chemical compositions. invert emulsifiers are used for:
- Complete treatment of injection wells while performing horizontal alignment procedure.
- Preparation of a liquid, which is necessary for the technological "killing" of wells.
- If it is necessary to increase the recovery of oil reservoirs with waterflooding.
The emulsifier contains 2 main components - a hydrocarbon solvent and an oil-soluble substance. The total allowable concentration is as follows:
- Emultal - from 20 to 40%
- Calcium chloride - from 1 to 3.4%.
- Water - from 2 to 6.8%.
- Organobentonite - from 3.6 to 10.8%.
- Everything else is solvent.
The second type may additionally contain a solid phase - bentonite clay modified with a quaternary ammonium salt in a volume of 1.2 to 4.3%. This composition allows the substance to act as a kind of absorbent with the effect of reducing surface tension and forming a stable wellbore system.
Selection of emulsifiers
The effectiveness of the use of emulsifiers for the manufacture of emulsions fully depends on the correct selection of the desired type. The Shebekinskaya Industrial Chemistry Company, which carries out its scientific and production activities on the basis of the Surfactants Institute, pays particular attention to this issue.
You can get acquainted with the types and technical characteristics of industrial emulsifiers manufactured at the enterprise using the official website. These products are supplied to customers in concentrate format with detailed instructions for their dilution for use directly on the job site. For consultation on the resource, the option of contacting a technical manager is provided, who will answer all your questions and help with choosing the best suitable emulsifier.