Research and Application of Efficient Treatment Technology for Oil Wells Containing Hydrogen Sulfide
In view of the problems such as low sulfur capacity,poor temperature resistance and easy scal-ing of triazine desulfurizer in the treatment process of oil Wells containing hydrogen sulfide,a new efficient DS desulfurizer system was developed.Compared with triazine desulfurizer,it had the advantages of high sulfur capacity,good temperature resistance,no scaling and so on,and can reduce the cost of hydro-gen sulfide treatment by about 30%.In order to en-sure the application effect of desulfurizer,four kinds of hydrogen sulfide treatment technology,such as casing drip adding and bottom hole injection,have been developed according to different working condi-tions of oil Wells.The desulfurization rate of the cat-alytic oxidation desulfurization device developed for Wells with high hydrogen sulfide content reached more than 95%.Up to now,the efficient treatment technology of hydrogen sulfide has been applied to more than 800 Wells,and the hydrogen sulfide con-tent at the wellhead can be reduced to less than 20 mg/m3,providing a strong guarantee for the safe and green production of the oilfield.
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