A setting tool for deploying a downhole tool within a wellbore is described herein. The setting tool uses an in situ non-explosive gas-generating power source to generate high-pressure gas, which drives a mechanical linkage to actuate the deployment of the downhole tool. According to certain embodiments the non-explosive gas-generating setting tool contains no hydraulic stages and may contain only a single piston. The setting tool may be fitted to provide different stroke lengths and can provide usable power over a greater percentage of its stroke length, compared to setting tools using explosive/pyrotechnic power sources. Methods of using a non-explosive gas-generating setting tool to deploy a downhole tool within a wellbore are also disclosed.

A setting tool for deploying a downhole tool within a wellbore is described herein. The setting tool uses an in situ non-explosive gas-generating power source to generate high-pressure gas, which drives a mechanical linkage to actuate the deployment of the downhole tool. According to certain embodiments the non-explosive gas-generating setting tool contains no hydraulic stages and may contain only a single piston. The setting tool may be fitted to provide different stroke lengths and can provide usable power over a greater percentage of its stroke length, compared to setting tools using explosive/pyrotechnic power sources. Methods of using a non-explosive gas-generating setting tool to deploy a downhole tool within a wellbore are also disclosed.

A well livening downhole tool for the in-situ production of nitrogen is provided. The well livening downhole tool may produce nitrogen in-situ in a well to lighten the fluid column and lift the well fluids. The well livening downhole tool may include sodium azide and other reactants to produce nitrogen and scavenge other reaction products to produce alkaline silicate and water. The well-livening downhole tool may include multiple modules each having nitrogen-producing reactants and ignition components such that each module may be activated independently to produce nitrogen at different depths. A process for lifting the well fluids using the well livening downhole tool is also provided.

A well livening downhole tool for the in-situ production of nitrogen is provided. The well livening downhole tool may produce nitrogen in-situ in a well to lighten the fluid column and lift the well fluids. The well livening downhole tool may include sodium azide and other reactants to produce nitrogen and scavenge other reaction products to produce alkaline silicate and water. The well-livening downhole tool may include multiple modules each having nitrogen-producing reactants and ignition components such that each module may be activated independently to produce nitrogen at different depths. A process for lifting the well fluids using the well livening downhole tool is also provided.

A method of treating a subterranean formation by contacting the formation with the following: (a) ammonium compound; (b) an oxidizing agent selected from a perchlorate or a nitrite or combinations thereof; and (c) sulfamic acid.

Disclosed are gas generating compositions and methods of making and used them.

Disclosed are gas generating compositions and methods of making and used them.

This disclosure is directed to an airbag gas generant formulation optimized for hybrid airbag inflators, and an airbag inflator, an airbag, an airbag module comprising same, and a method of inflating an airbag using the airbag gas generant.

The invention relates to gas generating compositions for use in safety devices for vehicles. In particular, the invention relates to said compositions based on guanidine nitrate used in pedestrian protection devices. The composition substantially comprises 75 to 98% by weight of guanidine nitrate as fuel and 2 to 25% by weight of a burn accelerator selected from the group of the transition metal compounds, the metal nitrates, metal chlorates, metal perchlorates, ammonium perchlorate and mixtures thereof, wherein the transition metal compounds are selected from the compounds of the transition metals Ti, Cr, Mn, Fe, Cu, Zn, Zr and Mo and wherein the gas generating composition exhibits a burn rate of from 3 to 17 mm/s at 20 MPa.

The invention relates to gas generating compositions for use in safety devices for vehicles. In particular, the invention relates to said compositions based on guanidine nitrate used in pedestrian protection devices. The composition substantially comprises 75 to 98% by weight of guanidine nitrate as fuel and 2 to 25% by weight of a burn accelerator selected from the group of the transition metal compounds, the metal nitrates, metal chlorates, metal perchlorates, ammonium perchlorate and mixtures thereof, wherein the transition metal compounds are selected from the compounds of the transition metals Ti, Cr, Mn, Fe, Cu, Zn, Zr and Mo and wherein the gas generating composition exhibits a burn rate of from 3 to 17 mm/s at 20 MPa.