RE: Well file14 Feb 2023 15:52
Some more for you indi. Lots of explanations, observations and solutions available if you search.
The concentration of the inhibitor can be maintained at a single concentration, or can be varied during use. For example, higher concentrations of inhibitor may be desirable during dilution of existing salt deposits than during subsequent inhibition treatments. The aqueous inhibitor solution can be added as a single bolus dose, in regularly spaced additions, or as a continuous addition. The addition can comprise addition of fluid into the wellbore with a production slipstream or addition of fluid into the wellbore using a capillary treating string.
An alternative embodiment of the invention relates to a method for the treatment of a wellbore, the method comprising treating a wellbore with water, and subsequently adding an aqueous solution of a salt inhibitor to the well-bore. This method can be desirable, for example, when solid sodium chloride deposits have already formed in the well-bore.
The release of gas in a gas well gradually strips water present in the well. This, in turn, increases the concentration of salt dissolved in the water. At a sufficiently high concen-tration, the salt will precipitate. The addition of a fluid containing a salt inhibitor to a gas well will increase the concentration at which the salt would precipitate, thereby extending the amount of time that gas can be produced without interference from the formation of salt crystals.
The addition of a foaming agent to the fluid containing a salt inhibitor can be attractive in various situations. For example, the foaming agent can assist in the removal of water from a gas well without the associated risk of increasing precipitation of salt crystals
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