Technical Bulletin
Description :
Rxsol Tex Additive is a sodium asphalt sulfonate made water soluble by a unique sulfonation process. It is a versatile, total mud conditioner that stabilizes shale formations, significantly increases lubricity, and lowers HTHP water loss. Rxsol Tex Additive enhances filter cake properties in both oil-based and water-based muds. Due to unique chemistry of Rxsol Tex Additive has delivered extraordinary results in both water-based and oil-based muds.
Application : Use for stablize shale formations, significantly increases lubricity, and lowers HTHP water loss.
Mixing : Conventional hopper when chlorides do not exceed 60,000 ppm. When adding to high salinity systems, pre-wetting Rxsol Tex Additive with fresh water by adding through chemical barrel may give best results.
DOSE : According to application below deose are recomended –
| Application | Dose |
| Stabilize shale formations | 3.0 to 6.0 ppb (9.0 to 17.0 kg/m3) |
| Impart significant lubricity | 1.0 to 3.0 ppb (3.0 to 9.0 kg/m3) |
| Reduce torque and drag | 1.0 to 3.0 ppb (3.0 to 9.0 kg/m3) |
|
Control HTHP fluid loss in water base & oil base Mud |
2.0 to 6.0 ppb (6.0 to 17.0 kg/m3) |
| Produce strong compressible wall cakes | 2.0 to 4.0 ppb (6.0 to 11.0 kg/m3) |
| Emulsify oil into water based mud systems | 0.5 to 3.0 ppb (2.0 to 9.0 kg/m3) |
|
Control shear strengths and increase thermal stability |
2.0 to 6.0 ppb (6.0 to 17.0 kg/m3) |
| General hole conditioning | 2.0 to 6.0 ppb (6.0 to 17.0 kg/m3) |
Properties :
| Physical state | : | Solid |
| Color | : | Black |
| Odor | : | No odor |
| Flash point | : | Not applicable |
| Lower explosion limit | : | No data available |
| Upper explosion limit | : | No data available |
| Oxidizing properties | : | No |
| Autoignition temperature | : | Not applicable |
| Molecular formula | : | Mixture |
| Molecular Weight | : | No data available |
| pH | : | Not applicable |
| Pour point | : | Not applicable |
| Boiling point/boiling range | : | Not applicable |
| Vapor pressure | : | Not applicable |
| Relative density | : | 1.2 – 1.5 |
| Water solubility | : | Partly soluble |
| Partition coefficient: n-octanol/water | : | No data available |
| Viscosity, kinematic | : | Not applicable |
| Relative vapor density | : | Not applicable |
| Evaporation rate | : | Not applicable |
Advantages :
- Controlled water and oil solubility to effect best chemical and physical performance.
- Minimizes damage to productive formations.
- Reacts with shale to prevent or stop sloughing and swelling.
- Significantly increases lubricity; either alone or synergistically with small amounts of oils and synthetics.
- Environmentally acceptable – is used on land and offshore.
- Extremely temperature stable – does not have the softening point typically associated with un-reacted asphaltic additives.
- Inhibits dispersion of drilled solids.
- Minimal and easily distinguishable fluorescence – does not hamper well logging or core analysis.
- Will not leave oil slick, sheen or rainbow on water at offshore locations.
- No emulsifiers needed to ensure proper mixing.
- Stable in Drilling Applications to 500 °F.
Product Label
Rxsol Tex Additive is a sodium asphalt sulfonate made water soluble by a unique sulfonation process. It is a versatile, total mud conditioner that stabilizes shale formations, significantly increases lubricity, and lowers HTHP water loss. Rxsol Tex Additive enhances filter cake properties in both oil-based and water-based muds. Due to unique chemistry of Rxsol Tex Additive has delivered extraordinary results in both water-based and oil-based muds.
