RU2015156308A - Thermogasochemical binary composition and method of application for processing bottom-hole and remote zones of an oil and gas bearing formation - Google Patents

Thermogasochemical binary composition and method of application for processing bottom-hole and remote zones of an oil and gas bearing formation Download PDF

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RU2015156308A
RU2015156308A RU2015156308A RU2015156308A RU2015156308A RU 2015156308 A RU2015156308 A RU 2015156308A RU 2015156308 A RU2015156308 A RU 2015156308A RU 2015156308 A RU2015156308 A RU 2015156308A RU 2015156308 A RU2015156308 A RU 2015156308A
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Russia
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thermogasochemical
binary composition
oil
mineral acids
hole
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RU2015156308A
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Russian (ru)
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RU2637259C2 (en
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Борис Николаевич Басюк
Владимир Антонович Бурко
Юрий Александрович Ганькин
Виктор Борисович Заволжский
Альберт Раисович Идиятуллин
Вячеслав Александрович Соснин
Иван Валерьевич Хлестов
Антон Владимирович Бурко
Фердинант Лябибович Садриев
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Общество с ограниченной ответственностью "Центр Нефтяных Технологий" (ООО "ЦНТ")
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/58Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
    • C09K8/592Compositions used in combination with generated heat, e.g. by steam injection
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/16Enhanced recovery methods for obtaining hydrocarbons
    • E21B43/24Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection

Claims (6)

1. Термогазохимический бинарный состав для обработки призабойной и удаленной зон нефтегазоносного пласта, содержащий эквимолярные растворы аммониевых солей минеральных кислот и нитритов щелочных металлов с инициирующим раствором отличающийся тем, что в качестве инициирующего раствора используют растворы альдегидов, содержащих спирты или кетоны, превращающие альдегидные группировки в полуацетали, которые обладают пониженной реакционной способностью, что обеспечивает индукционный период, достаточный для безопасной закачки исходных реагентов в нефтегазоносный пласт.1. Thermogasochemical binary composition for processing the bottom-hole and remote zones of the oil and gas reservoir, containing equimolar solutions of ammonium salts of mineral acids and alkali metal nitrites with an initiating solution, characterized in that solutions of aldehydes containing alcohols or ketones that convert aldehyde groups to semi-acetals are used as an initiating solution which have a reduced reactivity, which provides an induction period sufficient for safe injection of the original in the petroliferous formation reagents. 2. Термогазохимический бинарный состав по п. 1, отличающийся тем, что инициирующий раствор, обеспечивающий индукционный период развития реакций тепло- и газовыделения до 20-180 минут, состоит из смеси водных растворов алифатических альдегидов (формальдегид, глиоксаль и др.) с алифатическими спиртами (метанол, этанол, i-пропанол и др.) или кетонами (ацетон) в молярном соотношении от 0,5:1 до 2:1.2. The thermogasochemical binary composition according to claim 1, characterized in that the initiating solution, providing an induction period for the development of heat and gas evolution reactions up to 20-180 minutes, consists of a mixture of aqueous solutions of aliphatic aldehydes (formaldehyde, glyoxal, etc.) with aliphatic alcohols (methanol, ethanol, i-propanol, etc.) or ketones (acetone) in a molar ratio of from 0.5: 1 to 2: 1. 3. Термогазохимический бинарный состав по п. 1, отличающийся тем, что молярное соотношение между альдегидом, содержащемся в инициирующем растворе и аммониевой солью в термогазохимическом бинарном составе, используют в пределах от 1:40 до 1-250.3. The thermogasochemical binary composition according to claim 1, characterized in that the molar ratio between the aldehyde contained in the initiating solution and the ammonium salt in the thermogasochemical binary composition is used in the range from 1:40 to 1-250. 4. Термогазохимический бинарный состав по п. 1, отличающийся тем, что смесь солей (аммониевые соли минеральных кислот и нитриты щелочных металлов) в водном растворе используется в пределах от 40 до 85% масс.4. The thermogasochemical binary composition according to claim 1, characterized in that the mixture of salts (ammonium salts of mineral acids and nitrites of alkali metals) in an aqueous solution is used in the range from 40 to 85% of the mass. 5. Способ для обработки призабойной и удаленной зоны нефтегазоносного пласта, включающий закачку в пласт растворов аммониевых солей минеральных кислот и нитритов щелочных металлов с инициирующим раствором отличающийся тем, что их смешение производится в режиме интенсивного перемешивания, до начала закачки термогазохимического бинарного состава в нефтегазоносный пласт.5. A method for treating the bottom-hole and remote zones of an oil and gas bearing formation, including injecting into the formation solutions of ammonium salts of mineral acids and alkali metal nitrites with an initiating solution, characterized in that they are mixed in an intensive mixing mode, before the thermogasochemical binary composition is injected into the oil and gas bearing layer. 6. Способ по п. 5, отличающийся тем, что температура водного раствора аммониевых солей минеральных кислот и нитритов щелочных металлов перед смешением с инициирующим раствором применяется в пределах от -10°C до +30°C.6. The method according to p. 5, characterized in that the temperature of the aqueous solution of ammonium salts of mineral acids and nitrites of alkali metals before mixing with the initiating solution is used in the range from -10 ° C to + 30 ° C.
RU2015156308A 2015-12-28 2015-12-28 Thermo-gas-chemical binary composition and method for treatment of bottom-hole and remote zones of oil and gas bearing formation RU2637259C2 (en)

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RU2696714C1 (en) * 2018-06-14 2019-08-05 Акционерное общество "Сибнефтемаш" Method for thermo-chemical treatment of oil reservoir
US11454098B2 (en) 2020-05-20 2022-09-27 Saudi Arabian Oil Company Methods for wellbore formation using thermochemicals
RU2766283C1 (en) * 2021-08-23 2022-03-11 Публичное акционерное общество «Татнефть» имени В.Д. Шашина Oil formation treatment method

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SU640023A1 (en) * 1977-01-17 1978-12-30 Ивано-Франковский Институт Нефти И Газа Method of heat and chemical treatment of hole bottom area
RU2126084C1 (en) * 1997-06-30 1999-02-10 Евгений Николаевич Александров Method for thermochemical treatment of bottom-hole zone of bed
RU2224103C1 (en) * 2002-05-28 2004-02-20 Институт биохимической физики РАН Device and method for thermochemical treatment of a productive layer
RU2401941C1 (en) * 2009-06-05 2010-10-20 Открытое акционерное общество "Татнефть" им. В.Д. Шашина (ОАО "Татнефть") Procedure for thermo-chemical treatment of oil formation
US9803133B2 (en) * 2012-05-29 2017-10-31 Saudi Arabian Oil Company Enhanced oil recovery by in-situ steam generation
RU2525386C2 (en) * 2012-11-26 2014-08-10 Общество с ограниченной ответственностью "Центр Нефтяных Технологий" (ООО "ЦНТ") Thermal gas chemical composition and its application for well bottom and remote zones of productive stratum

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