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Brine chemistry and control of adverse chemical reactions with natural gas production. Annual report, January-December 1986

Technical Report ·
OSTI ID:5699689
; ; ; ;
Monitoring brine chemistry to determine the extent of potential adverse reactions has been simplified by the development of a field-brine test kit and a series of nomographs. Results of the kit analyses serve as input to the nomographs, which provide a graphic means of determining the scaling tendency (Saturation Index value) of a brine. Brines that do not tend to form scale may be corrosive. Saturation Index values were correlated with various processes using data from geopressured wells in the Gulf Coast area. Control of scale in surface equipment with chemical inhibitors has been successful. Numerous laboratory simulations of inhibitor squeeze operations were completed using core material with calcite present and absent. The corresponding wells were squeezed with phosphorous-containing inhibitors, and the flowback of brine was monitored for phosphorous concentrations vs time. A new procedure to measure the concentration of phosphorous-containing inhibitors down to 0.05 mg/l was developed and applied to brines from the Gladys McCall No. 1 DOE Design well. Methods to optimize inhibitor squeezes and scale and corrosion control are presently being investigated. The goal of the work is to understand the mechanisms responsible for scale and corrosion and to develop appropriate control measures.
Research Organization:
Rice Engineering Design and Development Inst., Houston, TX (USA)
OSTI ID:
5699689
Report Number(s):
PB-88-118245/XAB
Country of Publication:
United States
Language:
English

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Related Subjects

03 NATURAL GAS
030900* -- Natural Gas-- Artificial Stimulation
Plowshare-- (-1989)
BRINES
CHEMICAL REACTIONS
CONTROL
CORROSION PROTECTION
ENERGY SOURCES
ENERGY SYSTEMS
ENHANCED RECOVERY
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
GEOPRESSURED SYSTEMS
NATURAL GAS
RECOVERY
SCALE CONTROL
WATER WELLS
WELLS