EA201600463A1 - METHOD OF ISOLATION OF ABSORBING PLASTES IN THE WELL AND DEVICE FOR ITS IMPLEMENTATION - Google Patents
METHOD OF ISOLATION OF ABSORBING PLASTES IN THE WELL AND DEVICE FOR ITS IMPLEMENTATIONInfo
- Publication number
- EA201600463A1 EA201600463A1 EA201600463A EA201600463A EA201600463A1 EA 201600463 A1 EA201600463 A1 EA 201600463A1 EA 201600463 A EA201600463 A EA 201600463A EA 201600463 A EA201600463 A EA 201600463A EA 201600463 A1 EA201600463 A1 EA 201600463A1
- Authority
- EA
- Eurasian Patent Office
- Prior art keywords
- container
- water
- axial channel
- absorption
- nozzle
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 3
- 238000002955 isolation Methods 0.000 title 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 6
- 238000010521 absorption reaction Methods 0.000 abstract 4
- 229920000642 polymer Polymers 0.000 abstract 2
- 238000010276 construction Methods 0.000 abstract 1
- 230000008030 elimination Effects 0.000 abstract 1
- 238000003379 elimination reaction Methods 0.000 abstract 1
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 229920002959 polymer blend Polymers 0.000 abstract 1
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
Изобретение относится к способам изоляции водопритока и ликвидации зон поглощения при строительстве и ремонте скважин. Он заключается в том, что в скважину в интервал поглощения на колонне насосно-компрессорных труб (НКТ) спускают контейнер с днищем, соединенный с нижерасположенной трубой, содержащей нижнее днище и сливные окна. Днище контейнера снабжено осевым каналом, обеспечивающим гидравлическую связь полости контейнера с трубой. Соосно контейнеру установлен и выполнен с возможностью подключения к НКТ патрубок с механизмом вибрационного воздействия (МВВ) на среду контейнера с соплом, образующим вместе с осевым каналом днища инжектор. До спуска устройства в скважину общей заглушкой перекрывают сопло и осевой канал днища контейнера, загружают в контейнер водонабухающий полимер (ВНП), укладывают на поверхность полимера не менее одного шара для перекрытия осевого канала днища. Заполняют затрубное пространство скважины водой. После спуска в затрубное пространство и по колонне НКТ под давлением подают воду, удаляя заглушки из сопла и осевого канала днища, осуществляют запуск МВВ и инжекционный захват ВНП с последующей доставкой водно-полимерной смеси через окна трубы в затрубное пространство и зону поглощения. Об окончании процесса судят по скачку давления в колонне НКТ при перекрытии шаром осевого канала, что является сигналом для прекращения подачи воды. Технический результат заключается в повышении надежности доставки тампонажного материала в зону ликвидации поглощения, его эффективного перемешивания с водой с последующим созданием тампонажного экрана с высокими структурно-механическими свойствами.The invention relates to methods for isolating water inflow and the elimination of absorption zones in the construction and repair of wells. It lies in the fact that a container with a bottom connected to a downstream pipe containing the bottom plate and the drain windows is lowered into the well in the absorption interval on the tubing string (tubing). The bottom of the container is provided with an axial channel, providing a hydraulic connection of the cavity of the container with the pipe. Coaxially installed and configured to connect to the tubing pipe with the mechanism of vibration exposure (MVV) on the medium of the container with the nozzle, forming together with the axial channel of the bottom of the injector. Before the device is lowered into the well, a nozzle and an axial channel of the bottom of the container are blocked with a common plug, a water swellable polymer (GNP) is loaded into the container, and at least one ball is placed on the polymer surface to block the axial channel of the bottom. Fill the annulus with water. After descending into the annular space and along the tubing string under pressure, water is removed, removing the plugs from the nozzle and the axial channel of the bottom, launching the MWB and injection capture the GNP with subsequent delivery of the water-polymer mixture through the window openings into the annular space and the absorption zone. The end of the process is judged by the pressure jump in the tubing string when the ball overlaps the axial channel, which is a signal to stop the water supply. The technical result is to increase the reliability of delivery of the grouting material to the absorption liquidation zone, its effective mixing with water, followed by the creation of a grouting screen with high structural and mechanical properties.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EA201600463A EA031825B1 (en) | 2016-04-15 | 2016-04-15 | Method for isolation of a formation fluid loss zone in a well, and device for implementing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EA201600463A EA031825B1 (en) | 2016-04-15 | 2016-04-15 | Method for isolation of a formation fluid loss zone in a well, and device for implementing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EA201600463A1 true EA201600463A1 (en) | 2017-10-31 |
| EA031825B1 EA031825B1 (en) | 2019-02-28 |
Family
ID=60159251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EA201600463A EA031825B1 (en) | 2016-04-15 | 2016-04-15 | Method for isolation of a formation fluid loss zone in a well, and device for implementing the same |
Country Status (1)
| Country | Link |
|---|---|
| EA (1) | EA031825B1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EA038066B1 (en) * | 2018-10-12 | 2021-06-30 | Республиканское Унитарное Предприятие "Производственное Объединение "Белоруснефть" | Device for treating given interval of oil well |
| CN113863872A (en) * | 2021-02-01 | 2021-12-31 | 中国石油天然气集团有限公司 | Short section and drilling device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2750016C1 (en) * | 2020-11-26 | 2021-06-21 | Публичное акционерное общество «Татнефть» имени В.Д. Шашина | Method for sealing defect in working column of production well (options) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU972048A1 (en) * | 1981-04-20 | 1982-11-07 | За витель | Plugging tool |
| CA2020229C (en) * | 1989-07-21 | 1995-09-26 | John Martin Dees | Well treatment method |
| SU1714086A1 (en) * | 1989-11-13 | 1992-02-23 | Донецкий политехнический институт | Squeeze cementing tool |
| RU2315855C1 (en) * | 2006-07-03 | 2008-01-27 | Государственное образовательное учреждение высшего профессионального образования "Санкт-Петербургский государственный горный институт имени Г.В. Плеханова (технический университет)" | Method and device for thief formation isolation inside well |
-
2016
- 2016-04-15 EA EA201600463A patent/EA031825B1/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EA038066B1 (en) * | 2018-10-12 | 2021-06-30 | Республиканское Унитарное Предприятие "Производственное Объединение "Белоруснефть" | Device for treating given interval of oil well |
| CN113863872A (en) * | 2021-02-01 | 2021-12-31 | 中国石油天然气集团有限公司 | Short section and drilling device |
Also Published As
| Publication number | Publication date |
|---|---|
| EA031825B1 (en) | 2019-02-28 |
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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): AM AZ KZ KG TJ TM |