EA200601430A1 - METHOD FOR DEVELOPING OIL DISTRIBUTIONS - Google Patents
METHOD FOR DEVELOPING OIL DISTRIBUTIONSInfo
- Publication number
- EA200601430A1 EA200601430A1 EA200601430A EA200601430A EA200601430A1 EA 200601430 A1 EA200601430 A1 EA 200601430A1 EA 200601430 A EA200601430 A EA 200601430A EA 200601430 A EA200601430 A EA 200601430A EA 200601430 A1 EA200601430 A1 EA 200601430A1
- Authority
- EA
- Eurasian Patent Office
- Prior art keywords
- gas
- oil
- wells
- reservoir
- injection
- Prior art date
Links
Landscapes
- Edible Oils And Fats (AREA)
Abstract
Изобретение относится к нефтяной промышленности и может быть использовано для разработки «мелких» (с запасами до 10 млн. т) нефтяных месторождений. Предлагаемый способ разработки создает условия для сохранения естественного водонефтяного контакта на весь период разработки нефтяной залежи за счет поддержания пластового давления на начальном уровне и выше. В процессе реализации способа на каждой локальной структуре, образующей нефтяную залежь, производят бурение в куполе структуры вертикальной поисково-разведочной скважины, которую впоследствии используют в качестве нагнетательной скважины. Затем осуществляют строительство группы скважин (куста), состоящей из нагнетательной и эксплуатационных наклонно-направленных скважин с устьями, расположенными на расстоянии 10-20 м от нагнетательной скважины и забоев скважин, которые располагают по внутреннему периметру структуры, повторяющему ее конфигурацию с условием вскрытия продуктивных горизонтов под углом 75-85°. Начало эксплуатации каждой скважины и всех скважин «куста» начинают с одновременной закачки во все продуктивные горизонты газа сепарации и/или попутного нефтяного газа, природного газа соседних газовых скважин или инертных газов с условием поддержания давления закачки P, равного или большего пластового давления нефтяной залежи (P≥P). Таким образом, фактически осуществляют полный сайклинг-процесс при добыче нефти и по мере ее извлечения, когда в порах пласта произойдет замещение жидкой фазы закачиваемым газом, начинают эксплуатировать нефтяную залежь в режиме газовой смеси с последующим переходом на газоконденсатный режим и режим добычи сухого газа. Следует отметить,The invention relates to the oil industry and can be used to develop "small" (with reserves of up to 10 million tons) of oil fields. The proposed method of development creates the conditions for the preservation of the natural water-oil contact for the entire period of development of the oil reservoir by maintaining reservoir pressure at the initial level and above. In the process of implementing the method, each local structure forming an oil reservoir is drilled in the dome of a vertical exploration well structure, which is subsequently used as an injection well. Then, a group of wells (a bush) is built, consisting of injection and production directional wells with mouths located at a distance of 10-20 m from the injection well and the bottom of the wells, which are located along the internal perimeter of the structure, repeating its configuration with the condition of opening the productive horizons at an angle of 75-85 °. The commencement of operation of each well and all wells of the “bush” begins with simultaneous injection of separation gas and / or associated petroleum gas, natural gas of neighboring gas wells or inert gases into all productive horizons with the condition of maintaining injection pressure P equal to or greater than the reservoir pressure of oil deposits P≥P). Thus, a full cycling process is actually carried out during oil production and as it is extracted, when the liquid phase is replaced by the injected gas in the pores of the reservoir, the oil reservoir starts to operate in the gas mixture mode with subsequent transition to the gas-condensate mode and dry gas production mode. It should be noted,
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EA200601430A EA009470B1 (en) | 2006-08-15 | 2006-08-15 | Method of exploiting oil-producing formations |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EA200601430A EA009470B1 (en) | 2006-08-15 | 2006-08-15 | Method of exploiting oil-producing formations |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EA200601430A1 true EA200601430A1 (en) | 2007-12-28 |
| EA009470B1 EA009470B1 (en) | 2007-12-28 |
Family
ID=40848906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EA200601430A EA009470B1 (en) | 2006-08-15 | 2006-08-15 | Method of exploiting oil-producing formations |
Country Status (1)
| Country | Link |
|---|---|
| EA (1) | EA009470B1 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU95919A1 (en) * | 1949-10-04 | 1952-11-30 | И.Н. Стрижов | The method of converting oil fields into gas condensate and its implementation |
| RU2047746C1 (en) * | 1992-10-04 | 1995-11-10 | Научно-производственная фирма "Волнотех" | Well method for production of hydrocarbons |
| RU2055168C1 (en) * | 1993-01-25 | 1996-02-27 | Замир Закариевич Салямов | Method for development of oil field |
| RU2112868C1 (en) * | 1997-09-08 | 1998-06-10 | Сумбат Набиевич Закиров | Method for development of oil and gas deposits |
-
2006
- 2006-08-15 EA EA200601430A patent/EA009470B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EA009470B1 (en) | 2007-12-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s) |
Designated state(s): RU |