Method for scale and corrosion inhibition in a well penetrating a subterranean formation

Patent · Tue Oct 25 00:00:00 EDT 1988

OSTI ID:6543339

Snavely, Jr, E S; Hen, J

This patent describes a method for inhibiting scale and corrosion in a well penetrating a subterranean formation for the production of fluids from the formation comprising: (a) injecting a predetermined amount of microparticles of a cation exchange resin loaded with the desired cations into the formation about the well that are trapped and retained by the interstices of the formation without rendering the interstices or the formation impermeable to the flow of fluids; and (b) injecting a predetermined amount of an aqueous solution of scale and corrosion inhibitor into the formation about the well that contacts the cation exchange resin loaded with the desired cations and becomes fixed in a slightly soluble state either by complexation with the cations or is precipitated by the cations contained in the resin. A method for inhibiting scale and corrosion in a well penetrating a subterranean formation for the production of fluids from the formation comprising: (a) injecting a predetermined amount of microparticles of a cation exchange resin in an easily exchangeable cationic form into the formation about the well that are trapped and retained by the interstices of the formation without rendering the interstices or the formation impermeable to the flow of fluids; (b) injecting a predetermined amount of a aqueous solution of desired multivalent cations which exchange with the easily exchangeable cation form to the desired multivalent cation form; and (c) injecting a predetermined amount of an aqueous solution of scale and corrosion inhibitor into the formation about the well that contacts the cation exchange resin loaded with the desired cations and becomes fixed in a slightly soluble state either by complexation with the cations or is precipitated by the cations contained in the resin.

• Assignee: Mobil Oil Corp., New York, NY
• Patent Number(s): US 4779679
• OSTI ID: 6543339
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
AQUEOUS SOLUTIONS
CATIONS
CHARGED PARTICLES
CHEMICAL COMPOSITION
CONTROL
CORROSION INHIBITORS
CORROSION PROTECTION
DISPERSIONS
ION EXCHANGE
ION EXCHANGE MATERIALS
IONS
MATERIALS
MIXTURES
NATURAL GAS WELLS
OIL WELLS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
POLYMERS
RESINS
ROCK-FLUID INTERACTIONS
SCALE CONTROL
SOLUTIONS
WELLS