Kompleksnaa tehnologia remontno-izolacionnyh rabot v dobyvausih skvazinah s primeneniem vodoizoliruusih selektivnyh sostavov na uglevodorodnoj osnove

• Autorzy: Efimov N. N. , Silin M. A. , Magadova L. A. , Efimov M. N.

Warianty tytułu

EN

The соmрlех technology of squeeze jobs in oil wells for water isolating using selective oil-based solutions

• Konferencja: Geopetrol 2010 : nowe metody i technologie zagospodarowania złóż i wydobycia węglowodorów w warunkach lądowych i morskich : międzynarodowa konferencja naukowo-techniczna : Zakopane, 20--23.09.2010
• Języki publikacji: RU

Abstrakty

EN

The use of waterless, oil-based slurry (WOBS) for selective water isolation in oil wells has shown high efficiency in squeeze jobs in which the kill fluid was replaced with oil after killing а well, and after that the slurry was рumped in the perforation interval. When the WOBS was pumped in the water-cut oil well with a small volume of the oil spacer, the efficiency was very low. During the period of well operation, well control, squeeze jobs, and stimulation jobs, the bottomhole formation zone is affected by water. Water from the reservoir gets into the oil wells during the late stage of reservoir development. As a result of this, a water saturation zone forms around the well, decreasing the reservoir pore volume. This is especially characteristic for low permeable hydrophilic formations. Water permeability grows with the growth of water saturation; whereas oil permeability falls because of capillary strength, and the blocking of the bottomhole zone with bound water. During the pumping of the hydrophobic compositions, the water layer is destroyed, and water is taken away from the bottomhole zone. The hydrophobic reagent is adsorbed on the formation surface preventing recurrent hydration. The new, complex technology of squeeze jobs using the selective oil-based solutions was designed for improving the efficiency of squeeze jobs. This technology consists in the pumping of a hydrocarbon solution of surfactant-oil wetting agent and/or an inverted emulsion based on surfactant-oil wetting agent before the use of WOBS.

Słowa kluczowe

PL

odwierty; ropa naftowa; zawodnienie

EN

wells; oil; water isolation

• Wydawca: Instytut Nafty i Gazu - Państwowy Instytut Badawczy
• Czasopismo: Prace Naukowe Instytutu Nafty i Gazu
• Rocznik: 2010
• Tom: nr 170 wyd. konferencyjne
• Strony: 873--879
• Opis fizyczny: Bibliogr. 3 poz., tab., wykr.

Twórcy

autor

Efimov N. N.

• RGU nefti i gaza im. I. M. Gubkina, Moskva, Rossia

autor

Silin M. A.

• RGU nefti i gaza im. I. M. Gubkina, Moskva, Rossia

autor

Magadova L. A.

• RGU nefti i gaza im. I. M. Gubkina, Moskva, Rossia

autor

Efimov M. N.

• RGU nefti i gaza im. I. M. Gubkina, Moskva, Rossia

Bibliografia

• [1] Басарыгин Ю.М., Будников В.Ф., Булатов А.И. — Теория и практика предупреждения осложнений и ремонта скважин при их строительстве и эксплуатации. Справ. пособие: в б т., М.: OOO «Недра-Бизнесцентр» , т. 2, с. 413 (ил.), 2000
• [2] Силин М.А., Магадова Л.А., Ефимов Н.Н., Ефимов М.Н. и др. —Тампонажный раствор «НЦР ХИМЕКО-ВМН». Патент РФ .No. 2357999 от 05.03.2007 г.
• [3] Хисметов Т.В., Бернштейн А.М., Силин М.А., Магадова Л.А.; Ефимов Н.Н. и др. — Ремонтно-изоляционные работы в нефтяных скважинах с использованием тампонажнык растворов на углеводородной основе. Нефтяное хозяйство, No. 6, сс. 50-53, 2009