摘要:
The present invention relates to a managed pressure and/or temperature drilling system (300) and method. In one embodiment, a method for drilling a wellbore into a gas hydrates formation is disclosed. The method includes drilling the wellbore into the gas hydrates formation; returning gas hydrates cuttings to a surface of the wellbore and/or a drilling rig while controlling a temperature and/or a pressure of the cuttings to prevent or control disassociation of the hydrates cuttings.
摘要:
The present invention relates to a managed pressure and/or temperature drilling system (300) and method. In one embodiment, a method for drilling a wellbore into a gas hydrates formation is disclosed. The method includes drilling the wellbore into the gas hydrates formation; returning gas hydrates cuttings to a surface of the wellbore and/or a drilling rig while controlling a temperature and/or a pressure of the cuttings to prevent or control disassociation of the hydrates cuttings.
摘要:
Foodstuffs subject to oxidative or enyzmatic discoloration particularly fruits, vegetables and cereal grains are treated with a combination of hydrolysis mixtures of aldonic acids and their lactones, particularly gluconic acid and its lactones together with very small quantities of a sulfiting agent in aqueous solutions to assist in maintaining fresh appearance and inhibiting discoloration without detracting from the flavor or leaving residues of sulfites in quantities of public health significance.