104.
(11) Patent number: 2146725
(46) Date of publication: 20.03.2000
(51) Int. Cl.7: C 23 G 1/00//E 21 B 37/06
(21) Application number: 98104385/02
(22) Application date: 06.03.1998
(71) Applicant:
Institut khimii nefti SO RAN
(72) Inventor:
Manzhaj V.N.,
Judina N.V.,
Prozorova I.V.,
Altunina L.K.,
Trufakina L.M.
(73) Proprietor:
Institut khimii nefti SO RAN
(98) Mail address:
634021, Tomsk, pr.Akademicheskij 3, IKhN SO RAN, PI
(54) COMPOSITION FOR REMOVAL OF ASPHALTENES, TARS, AND PARAFFINS FORM OIL- FIELD EQUIPMENT
(57)
FIELD: oil and gas production. SUBSTANCE: two- part composition contains, wt. %: solution A (ammonium chloride, 10- 35.0; aluminum chloride, 1.0-10.0; surfactant, 0.01-0.5; and water, (the balance) and solution B (sodium nitrite, 15-40; and water, the balance). EFFECT: complete removal of deposits. 2 tbl, 6 ex.
|
|
