Polytamp
Name
PolytampProduct description
Polytamp is a one-component material - a orthosilicic acid polyesters (varying polymerization degrees) mixture with special additives. The grouting material is capable, under the action of water as a result of the active groups hydrolysis and their further polycondensation, to form cross-linked, the entire volume curable structures.
Polytamp is used in oil and gas wells with seam temperatures ranging from +10°С to +180°С (maximum working temperature +250°С).
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Fields of application
Insulation work during the repair of wells:
- Elimination of the bottom water inflow.
- Elimination of the interlaying flooding.
- Elimination of behind-the-casing overflows in producing and injection wells.
- Disconnection of the seams during the transition to the higher or lower horizons.
- Production columns leaks elimination (preventing crater formation and eliminating).
- Restriction of water inflow after hydraulic fracturing in oil wells.
- Straightening the injectivity profile in injection wells.
- Weakly cemented rocks fastening of bottomhole.
Insulation work at the well construction stage:
- Elimination of loose and absorption.
- Warning shutdown of the formation water-saturated intervals before the primary or secondary productive horizon opening.
Work on increasing productivity (production stimulation) of wells:
- Hydrocarbon flow increasing and water cut reducing in well production.
| Application parameters | Application conditions |
|---|---|
| Well construction | Vertical, directionally inclined, horizontal, open borehole |
| The produced products | Oil, gas, gas condensate |
| Collector type | Any |
| Formation temperature | Up to +180°С (maximum working temperature +250°С) |
| Ambient temperature during application | From -50°С to +40°С |
| Mineralization of formation water | Any |
| Water cut of extracted products | Up to 100% |
| Stratum depth | Unlimited |
| Type of watering | Behind-the-casing flows, bottom watering, column leakage etc. |
| The current state of the productive interval | The perforation interval is not blocked by technological equipment or garbage (precipitation) |
Benefits
- Selective action on flooded formation.
- The simplicity of the process, the working solution preparation, high prefabrication degree of Polytamp materials, application of standard equipment during the squeeze job.
- A wide range of water inflows elimination types.
- Applicability in a wide range of seam temperatures (up to +250°C), the ability to use in regions with low ambient temperatures up to –50°C.
- The ability to adapt the properties of Polytamp to the geological and physical conditions of a particular deposit and for various types of squeeze job.
- The stability of Polytamp properties and compositions based on it.
- Possibility of application at the stage of well construction and during operation, in formations with abnormally low and high formation pressure.
- Coiled tubing units application possibility
- A wide range of the polymerization time regulation depending on the geological and technical conditions.
- Resistance to organic and inorganic acids, hydrogen sulfide, salt solutions, the possibility of acid treatments.
- Duration of repair insulation works is min. 5 hours
- The possibility of chemical destruction and removal of the insulating screen after polymerization in case of emergency.
- Strengthening the weakly cemented rocks skeleton, reducing sand removal.
- The economic effect increasing due to oil and gas extraction increasing.
Storage
Polytamp is recommended to be stored in tightly closed original packaging at a temperature between -60°C and + 40°C, in a cool, dry, well-ventilated place, away from areas that pose a fire hazard. Protect from direct sunlight and moisture.
The guaranteed shelf life in original container is 12 months. The actual period of application is up to 3 years or more, which is associated with the high stability of the Polytamp.
Storage over the date specified on the label does not necessarily mean the product is unusable. In case, if store more please check the properties of product before use.
Packaging
Steel barrels with a capacity of 100 dm3, 110 dm3, 200 dm3, 273 dm3.
Safety information
Grouting material Polytamp is a flammable, explosive liquid. Observe the fire safety technique when processing.
Detailed instructions are given in the relevant product safety data sheet. It can be provided upon request.
Physico-chemical properties
| Name of parameter and unit of measure | Standard |
|---|---|
| Appearance | Liquid |
| Color | From light yellow to dark brown |
| Freezing point, ⁰C | <-60 |
| Dynamical viscosity, mPa·s | 1-30 |
| Density, g/cm3 | 0,9-1,1 |
| The amount of precipitate after dilution with water in ratio 1:3,%vol, max | 7 |
| The gelling ability at a temperature (+75±5)°С, material to water ratio = 1:3 | From 1 hour |
| The ability to form a homogeneous system with water | Stable, non-delaminating fluid |
| Solubility | in alcohols, kerosene, acetone, oil distillate, etc. |