FIELD: oil and gas industry.
SUBSTANCE: composition for preventing salt deposits in course of oil production contains, wt %: hydrochloric acid 8-10; diethylenetriamine-penta 3-5; ethylidenediphosphonic acid 2-4; polyethylene polyamine-N-methylphosphonic acid 2-5; ammonium chloride 2-4; isopropyl alcohol 0.5-2; the rest is water.
EFFECT: reduced degree of production formation damage, increased degree of protection of well equipment and formation near well bottom zone against deposition of inorganic salts with high mineralisation of formation water.
4 tbl, 4 ex
| Title | Year | Author | Number |
|---|---|---|---|
| COMPOSITION FOR PREVENTING FORMATION OF SALT DEPOSITS DURING OIL AND GAS EXTRACTION | 2015 |
|
RU2599150C1 |
| COMPOSITION FOR INHIBITING SALT DEPOSITION | 2018 |
|
RU2702784C1 |
| COMPOSITION FOR PREVENTION OF SALT FORMATION DURING OIL PRODUCTION | 2003 |
|
RU2259470C2 |
| STABILIZER FOR COLLECTOR PROPERTIES OF OIL FORMATION | 2006 |
|
RU2312880C1 |
| COMPOSITION FOR COMBINED TREATMENT OF RECOVERED FLUIDS | 1997 |
|
RU2131969C1 |
| COMPOUND FOR PREVENTING DEPOSITION OF SALTS AND SAND IN PRODUCTION OF OIL | 1997 |
|
RU2132451C1 |
| COMPOSITION FOR PREVENTING DEPOSITION ON OIL FIELD EQUIPMENT | 1993 |
|
RU2036167C1 |
| PRODUCING LAYER FILTRATION PROPERTY MODIFIER | 2012 |
|
RU2506298C1 |
| COMPOSITION FOR CALCIUM SALT PREVENTION | 2019 |
|
RU2723809C1 |
| COMPOSITION FOR PREVENTION OF HYDRATE SALT DEPOSITIONS AND CORROSION | 2011 |
|
RU2504571C2 |
