Show metadata Hide metadata

(19)

(11)

2 283 950

(13)

(51)

IPC

E21B43/22(2006-01-01)

E21B37/06(2006-01-01)

(21) (22)

Application

2004108875/03, 2004-03-25

(24)

Start date

2004-03-25

(22)

Actual filing date

2004-03-25

(45)

Published

2006-09-20

(72)

Inventor

Takhautdinov Rustem ShafagatovichShajmardanov Rafaehl' GalimzjanovichFakhriev Al'Bert RobertovichSafin Azat KhafizovichShakirzjanov Ruslan RubisovichShajakhmetov Shamil' Kashfullinovich

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo

TREATMENT METHOD FOR WELL BOTTOMHOLE PRODUCTIVE FORMATION ZONE CHARACTERIZED BY DIFFICULT-TO-RECOVER OIL Russian patent published in 2006 - IPC E21B43/22 E21B37/06

Abstract RU 2283950 C2

FIELD: oil production industry, particularly to treat bottomhole formation zone and injection wells, which are converted from producing wells.

SUBSTANCE: method involves injecting solvent composition mixed with surfactant in formation; forcing composition in formation; performing time delay and putting well in operation. Before the composition forcing in formation the composition is held at face within the limits of well filter location for 1-2 hours in dependence of filter contamination with asphalt-tar-paraffin deposits or activating technical means usage. The solvent is distillation residue obtained during ethylbenzene and A or B grade styrene rectification. The surfactant is grade B liquid sulphanole taken in amount of 1-10% by the distillation residue weight.

EFFECT: increased efficiency, reduced time and material consumption for bottomhole formation zone treatment.

Similar patents RU2283950C2

Title	Year	Author	Number
METHOD FOR EFFECTING FACE-ADJACENT WELL AREA	2004	Luk'Janov Ju.V. Korenjako A.V. Mikhajlov A.A. Zaripov F.R.	RU2252311C1
REAGENT FOR INCREASING OIL RECOVERY OF FORMATIONS AND RESTRICTING WATER INFLOWS TO OIL WELLS, AND A METHOD FOR TREATING WATERED OIL FORMATION	2006	Nasibulin Il'Shat Maratovich Vasjasin Georgij Ivanovich Bajmashev Bulat Almazovich Muslimov Renat Khaliullovich Fakhrutdinov Il'Dus Mintalipovich Jagudin Shamil Gabdulkhaevich	RU2320696C1
METHOD OF MULTI-STAGE TREATMENT OF INJECTION WELL BOTTOMHOLE ZONE IN TERRIGENOUS AND CARBONATE FORMATIONS	2017	Sergeev Vitalij Vyacheslavovich	RU2642738C1
COMPOSITION FOR ACID TREATMENT OF BOTTOM-HOLE ZONE OF PRODUCTIVE FORMATIONS WITH HARD-EXTRACTABLE RESERVES OF OIL	2004	Khuzin R.R. Shajakhmetov Sh.K. Timirov V.S. Girfanov R.G. Shajakhmetov A.Sh.	RU2255216C1
METHOD OF OIL DEPOSIT DEVELOPMENT	2001	Grajfer V.I. Kotel'Nikov V.A.	RU2191257C1
METHOD OF CHEMICAL REAGENT IMPULSIVE IMPLOSION BOTTOM HOLE TREATMENT, EQUIPMENT FOR ITS EXECUTION, PRESSURE IMPULSE GENERATOR	2007	Boguslaev Vjacheslav Aleksandrovich Kononenko Petr Ivanovich Skachedub Anatolij Alekseevich Kvitchuk Kim Kirillovich Kozlov Oleg Viktorovich Slidenko Viktor Mikhajlovich Listovshchik Leonid Konstantinovich Lesik Vasilij Sergeevich	RU2376455C2
REAGENT FOR TREATMENT OF BOTTOMHOLE OIL FORMATION ZONE AND A PROCESS OF TREATING BOTTOMHOLE OIL FORMATION ZONE	2006	Nasibulin Il'Shat Maratovich Vasjasin Georgij Ivanovich Bajmashev Bulat Almazovich Muslimov Renat Khaliullovich	RU2319726C1
METHOD FOR PROCESSING OIL FORMATION	2005	Vasjasin Georgij Ivanovich Nasibulin Il'Shat Maratovich Lebedev Nikolaj Alekseevich Savel'Ev Viktor Alekseevich Grakhantsev Nikolaj Mikhajlovich Romanov Gennadij Vasil'Evich Zanin Vladimir Arkad'Evich	RU2289686C1
METHOD FOR PROCESSING BOTTOMHOLE FORMATION ZONE	2014	Sergeev Vitalij Vjacheslavovich	RU2583104C1
METHOD FOR PROCESSING BOTTOMHOLE ZONE OF FORMATION COMPOSED OF CARBONATE ROCKS WITH OIL RESOURCES COMPLICATED TO EXTRACT	2005	Takhautdinov Rustem Shafagatovich Safin Azat Khafizovich Shigapov Il'Nur Nailevich	RU2288358C2

RU 2 283 950 C2

Authors

Takhautdinov Rustem Shafagatovich

Shajmardanov Rafaehl' Galimzjanovich

Fakhriev Al'Bert Robertovich

Safin Azat Khafizovich

Shakirzjanov Ruslan Rubisovich

Shajakhmetov Shamil' Kashfullinovich

Dates

2006-09-20—Published

2004-03-25—Filed