Gas Wellbore blocking Removal Agent

Product name：Gas Wellbore blocking Removal Agent

Product name：Gas Wellbore blocking Removal Agent

Chemical composition：zwitterionic surfactant、mixed acid( alkali)

Model No：WZ017

Specification

pH(20℃)1.0～2.0/9.0～12.0

Density，g/cm30.94～0.96

Corrosion rate(80℃，N80 steel，24h)，g/m2，h  ≤4.0

WZ017 is composed of zwitterionic surfactant, mixed acid as the main material, and corrosion inhibitor as the auxiliary material. It is made by heating and cooling process. Divided into acid stage and alkali stage, alternating action can eliminate the oil field chemicals blocked in the wellbore.2.Properties

Usage

Corrosion inhibitor residues, foaming agent denaturation, formation water inorganic salt fouling, fracturing fluid insufficiency gelout and organic or inorganic materials cause gas tube blockage, dig empty pool in the wellhead, inject unplugging agent into the wellbore, and shut-in  for 5-15 hours, empty the wellbore (or remove the residual liquid to the ground by using foam), repeated the operations above until the trial-production reaches the construction design requirements

The well condition before blockage removal：

1. High pressure difference of oil and casing pressure;

2. Difficulty in gas well production with water,  and the oil pressure and outputs of gas and water decreased

3. The drifting operation has been blocked, and the gauge cannot be located to the intended location;

4. Serious blockage caused the gas well to stop producing.

The results of blockage removal:

1. Keep the pipeline unblocked for a long time;

2. The differential pressure of oil and casing pressure has been narrowed, and the oil pressure and outputs of gas and water have been increased.

3. The pressure of formation water reinjection well decreased, and reinjection fluid volume increased;

4. The input and output ratio is greater than 1:10.

Package and storage

200KG plastic drum;Keep in a cool and dry place. prevent the rain and sunshine. The shelf life is two years.