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US 11,912,635 B2Granted
Explosive compositions for use in reactive ground and related methods
AssigneeDyno Nobel Asia Pacific Pty Limited
InventorsJade Pettersen, Emma McPhail, Jeff Gore
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Abstract
Explosive compositions for use in high temperature, reactive ground, or both, are disclosed. The explosive compositions can include an emulsion with a continuous organic fuel phase and a discontinuous oxidizer phase. The oxidizer phase can include one or more Group I or Group II nitrates.
Claims16
An explosive composition comprising an emulsion comprising:
- a continuous organic phase comprising fuel oil;
- a discontinuous oxidizer phase comprising:
- urea, wherein the urea is about 0.5% to about 35% of the discontinuous oxidizer phase by weight;
- a non-Group I or Group II nitrate;
- and
- one or more Group I or Group II nitrates, wherein the Group I or Group II nitrates are about 3% to about 35% of the discontinuous oxidizer phase by weight,
- wherein a ratio of the non-Group I or Group II nitrate to the one or more Group I or Group II nitrates is 6:1 to 9:1 by weight, and
- wherein the emulsion has a sleep time of at least 3 hours in contact with high temperature ground, reactive ground, or both.
5 more elements
A method of forming a blend, the method comprising:
- mixing a slurry comprising ammonium nitrate and fuel oil with an emulsion, the emulsion comprising:
- a continuous organic phase comprising fuel oil;
- and a discontinuous oxidizer phase comprising:
- urea, wherein the urea is about 0.5% to about 35% of the discontinuous oxidizer phase by weight;
- a non-Group I or Group 11 nitrate;
- and
- one or more Group I or Group II nitrates, wherein the one or more Group I or Group II nitrates are about 3% to about 35% of the discontinuous oxidizer phase by weight,
- wherein a ratio of the non-Group I or Group II nitrate to the one or more Group I or Group II nitrates is 6:1 to 9:1 by weight, and
- wherein the blend has a sleep time of at least 3 hours in contact with high temperature ground, reactive ground, or both.
6 more elements
Dependencies are inferred from the claim text.