Oil production

Tertiary method of operation

When an oil field enters the tertiary period of oil production, a large channel can be blocked by injecting a viscous polymer solution to increase the coverage ratio of the injected liquid and each ton of polymer can increase the production of 120-150 tons of crude oil per user. The company's polyacrylamide products for tertiary oil production are widely used in Daqing, Shengli, Dagan, Liaohe, Xinjiang, Henan, North America, South America, India, the Middle East, and other oil fields. Conventional products can withstand temperatures up to 75°C and salinity up to 30,000 parts per million. Heat-resistant and salt-resistant products can withstand temperatures up to 90 °C and salinity up to 30,000 ppm.

Alignment of the pick-up profile for water insulation

The alignment of the pick-up profile for water isolation consists in adding a crosslinking agent to a certain concentration of polyacrylamide solution so that the high-valent metal ion in the crosslinking agent forms a coordination bond with the carboxyl group in polyacrylamide in the form of a polyion of a multicore hydroxyl bridge.

Use together with a crosslinking agent can increase the strength of the gel and block the pores.

For drilling mud

Polyacrylamide is used as drilling mud in oil fields to improve the characteristics of drilling mud, prevent the collapse of the walls of the well, cooling and lubrication of drill bits, as well as to prevent the collapse of the walls. Polyacrylamide for drilling mud can be used in a non-dispersed polymer drilling mud system with a low solid content, it can be used in combination with various processing reagents and is suitable for various drilling mud systems.

Functions:

1. Shale Inhibitor: Inhibits hydration, expansion and decomposition of clay minerals contained in shale to prevent well collapse.

2. Filtration control: Control the flow of water into the formation and make the shale hydrate and expand.

3. Viscosity reduction: focus on protecting the edges of the clay particles, strengthen the negative charge effect there so that the system cannot form a mesh structure and thus

Hydraulic Fracturing Fluid Thickener

In a low-permeability oil reservoir of an oil field, pressure is used to compress the formation to form cracks and support it with a proppant to reduce resistance to fluid flow to increase production and attract attention. After the formation of cross-links, the hydraulic fracturing fluid thickener can send a large amount of wedging filler into the crack to support the crack. This product has good shear resistance and thermal stability.

Use and dosage of hydraulic fracturing fluid and drilling mud

1. Pre-acid: 0.8-1.5 m3/m of oil layer

2. Acid of the main treatment: oil layer 1.2-2 m3/ m (during the experiment, the clogging radius is first determined if the radius is 2-3 m, then v= 3.14h(Ri2-rw2) is used for calculation).

3. Solution after displacement: 0.8-1.2 times more than the solution for the main treatment.

Oil Field Resistance Reducer:

Polyacrylamide resistance reducer is widely used in the transportation of crude oil and refined oil through the pipeline.The friction resistance of the fluid in the pipeline restricts the flow of fluid in the pipeline, which leads to a decrease in the throughput of the pipeline and an increase in energy consumption.An important means of pipeline throughput and reduction of energy consumption. Our company's polymer drag absorber can effectively reduce the flow resistance and at the same time slow down the corrosion of the pipeline.

Use and dosage of the resistance reducer:

Usage: Dissolve the resistance reducer in a small amount of water and stir to dissolve it evenly, then gradually inject it into the pipeline so that it mixes evenly with the level in the pipeline. The injection rate cannot be too high, otherwise it will cause a flow gradient. Dosage: Add about 3 kg of this resistance reducer per 1 m3 of liquid.