D-Grade
Self-destructive bridging agent
Provide primary fluid loss control for a desired period of time.
D-Lay
Breaker controlled release agent
Where it is used
D-Lay breaker controlled release agent is used as a self-degrading fluid loss control additive when fluid loss control is desired for a period of time and a fluid loss control pill is used. It is used in combination with D-Grade self-destructive bridging agent, as a component of the internal breaker or bridging package of self-degrading solids-laden or crosslinked hydroxyethyl cellulose (HEC) fluid loss control systems, to achieve required delay time above 200 degF [93 degC].
How it works
D-Lay agent is recommended for bottomhole temperatures above 200 degF [93 degC]. At these temperatures, D-Lay agent hydrolyzes and inhibits the D-GRADE agent reactivity rate to help achieve the required delay time.
What else I should know
The agent may not activate below 200 degF [93 degC]. Lab testing is required.
| Typical Physical Properties |
|
| Physical appearance | Granular powder |
| Color | White blue |
| Specific gravity | 1.33 |
Toxicity and handling
Bioassay information is available on request. Handle as an industrial chemical, wearing protective equipment and observing the precautions described in the SDS.
Packaging and storage
D-Lay agent is packaged in 50-lbm [23-kg] paper sacks. Store in a dry, well-ventilated area. Keep container closed. Keep away from heat, sparks, and flames. Store away from incompatibles. Follow safe warehousing practices regarding palletizing, banding, shrink-wrapping, or stacking.
Helpful links
About SLB