METHOD OF TREATING BOTTOM ZONE OF WELL Russian patent published in 1998 - IPC

Abstract RU 2117151 C1

FIELD: oil and gas production. SUBSTANCE: in a method when horizontal hole is filled with solvent for removing asphalt-tar and paraffin deposits and, after required pause, solvent is removed, distinguishing feature consists in that, in horizontal hole, 30-50-m sections are chosen, depth of the middle part of each section is measured, and sections are treated successively from the highest section to lowest one. Treatment is carried out with the aid of a source of pulse-depression action that is successively installed in each treatment section, while hole fluid is withdrawn from each treatment section. EFFECT: increased productivity of well. 2 cl

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RU 2 117 151 C1

Authors

Ganiev G.G.

Ivanov A.I.

Valeev M.Kh.

Sivukhin A.A.

Sulejmanov Eh.I.

Dates

1998-08-10—Published

1998-03-12—Filed