ResinBond Cement

RB Catalyst must always be added to the mixing water FIRST. Failure to do so may result in shortened working time leading to potential plug failure. Always keep Earth Pro ResinBond pail and RB Catalyst containers closed until use. Avoid contact with water or excessive moisture. Wear the appropriate safety goggles and protective equipment when handling this product.

Earth Pro ResinBond Cement is a unique blend of polymer and high purity gypsum that has been purposely designed to provide 90-120 minutes of open time, or fluid state to enable proper mixing and displacement to the desired plug zone.

Combined with RB Catalyst, low viscosity fluid properties are maintained for 30 – 60 minutes at BHT provided proper mixing procedures are followed, and product does not become contaminated. This enables confident placement at a wide variety of depths and wellbore temperatures.

Due to this delay feature, should another plug of the same type be required on top of the first one, a certain amount of waiting time is necessary to ensure adequate strength on the preceding plug to prevent disturbance of the weak bonds.

Generally, a minimum of 4 hours is required to allow proper set and initial cure before another similar plug may be placed on top. It is recommended that a retain (cup sample) of the slurry be taken after mixing and monitored at surface (above freezing temperature), to provide a more accurate indicator of the slurry set.

The table below depicts the typical strength development for Earth Pro ResinBond Cement. Using proper mixing and measuring techniques, the typical slurry will remain fluid for 1-1.5 hours after mixing. This time also includes the amount of time required at surface to mix.

Please note that shortly after this open time, the slurry begins the transition to the set state. In all cases, at 2 hours the slurry will no longer flow. This value does vary somewhat depending upon well depth and RB Catalyst loading, so always place the Earth Pro ResinBond Cement plug as quickly and as safely as possible.

The proper amount of clean water, accurate measurement of RB Catalyst, and adequate mixing of the cement all lead to a successful job.

1. Obtain as much well information as possible for the Earth Pro ResinBond Cement plug, most important are depth, and/or BHST (°C.)
2. Ensure well has been circulated clean, and that the well is dead.
3. Measure accurately the correct amount of CLEAN, FRESH water into the mixing vessel. Five (5) liters of water per 20 kg pail of Earth Pro ResinBond Cement is required for proper hydration. Do NOT use produced or contaminated water sources for mixing Earth Pro ResinBond Cement. Uncontrollable slurry properties could result in job failure. Ensure the mixing water temperature is 15-25°C. Lower temperature water may result in difficulty mixing, while using very hot water may lead to loss of working time, again leading to job failure.
4. In the following table, find the temperature closest to the BHT in the well being serviced. This corresponds to the proper amount of RB Catalyst L PER PAIL of Earth Pro ResinBond Cement required in this well situation.
5. Carefully pour the required amount of RB Catalyst into the measuring vial. Shake lightly to level. Re-measure and add or remove Catalyst as required. Do NOT tamp, as product will compact, leading to overt treating. Slight overdosing or under dosing will not compromise the overall fluid properties of Earth Pro ResinBond Cement, but care in handling is always recommended.
6. Add the required amount of RB Catalyst L FIRST to the mixing water. Stir for a minimum of 3-5 minutes to ensure proper dissolution.
7. Add the Earth Pro ResinBond Cement to the water and RB Catalyst L while mixing steadily to avoid lumping, and mix until the slurry is visibly smooth.
8. Pour into the dump bailer equipment and run to bottom and place plug as per usual procedure.
9. Pull up slowly to avoid disturbing plug.
10. Apply squeeze pressure if required.

NOTE: Temperatures are estimates for average Western Canadian well conditions and are for reference purposes only. Please contact oil company personnel for specific well depth/temperature profiles in the area for accuracy.

Appearance: White powder

Composition: Blend

Density: 2.3 – 2.5 g/cc

Solubility: Partly soluble in water

Water Requirement: 5L/20kg

pH: 6.0 – 8.0 (1% solution)

WHMIS: Controlled (see MSDS)

TDG: Not regulated

Packaging: 20L pail