发明名称 |
HYDROPHOBIC EMULSION FOR ISOLATION OF FORMATION WATER INFLOW INTO WELL |
摘要 |
FIELD: oil and gas production. SUBSTANCE: objective of invention is to make emulsion stable under high-temperature conditions in contact with formation waters with different mineralization and pH values and simultaneously increase selective isolation properties of emulsion. Emulsion of invention contains calcium chloride-type formation water with density 1060-1180 kg/cu. m and vat residue from C<SB>17</SB>-C<SB>20</SB>-amine production or product of polycondensation of this residue with vat residue from caprolactam production: 20-30% of hydrocarbon solution of amino-containing products: enamines, imines, and aminoalcohols with amino number at least 100 mg KOH/g, cyclohexanone and high-temperature cyclohexanone oxidation products. EFFECT: increased emulsion stability. 2 tbl
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申请公布号 |
RU2134345(C1) |
申请公布日期 |
1999.08.10 |
申请号 |
RU19970110728 |
申请日期 |
1997.06.25 |
申请人 |
OTKRYTOE AKTSIONERNOE OBSHCHESTVO "PERMNIPINEFT'" |
发明人 |
JUZHANINOV P.M.;GLEZDENEVA T.V.;KACHIN V.A. |
分类号 |
E21B43/32;(IPC1-7):E21B43/32 |
主分类号 |
E21B43/32 |
代理机构 |
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地址 |
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