SU126086A1 - Method of cementing wells under pressure - Google Patents
Method of cementing wells under pressureInfo
- Publication number
- SU126086A1 SU126086A1 SU627938A SU627938A SU126086A1 SU 126086 A1 SU126086 A1 SU 126086A1 SU 627938 A SU627938 A SU 627938A SU 627938 A SU627938 A SU 627938A SU 126086 A1 SU126086 A1 SU 126086A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- under pressure
- wells under
- cementing wells
- cementing
- cement
- Prior art date
Links
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Description
Предлагаемое изобретение относитс к области цементажа буровых скважии и иозвол ет производить цементаж под давлением даже в тех случа х, когда в верхних пропластках имеютс поглощающие горизонты или грифонообразующие трещины и применение превентора не достигает цели.The present invention relates to the field of cementing boreholes and allows for cementing under pressure, even in those cases where there are absorbing horizons or griffon-forming cracks in the upper interlayers and the use of a preventer does not reach the goal.
Дл осуществлени описываемого способа в скважину порци ми нагнетают цементный раствор с различной характеристикой по времени схватывани . Порцию цементного раствора с наикратчайшим сроком схватывани закачивают в соответствии с произведенным расчетом на высоту зоны, лежащей над трещиноватым или подлежащим тампонажу под давлением горизонтом. Вследствие этого над горизонтом создаетс цементный мост и последующа порци цемента с замедленным сроком схватывани продавливаетс в расчетный горизонт под давлением.In order to carry out the described method, a cement slurry with different characteristics at the setting time is injected into the well in portions. A portion of the cement solution with the shortest setting time is pumped in accordance with the calculation made on the height of the zone lying above the fractured or subject to tamponazh under pressure horizon. As a result, a cement bridge is created above the horizon and a subsequent portion of cement with a slower setting time is pressed into the design horizon under pressure.
Предмет изобретени Subject invention
Способ цементажа скважин под давлением, отличающийс тем, что, с целью создани цементного моста над подлежащим тампонажу под давлением горизонтом, в скважину закачивают цементный раствор непрерывно следующими друг за другом порци ми с различной характеристикой по времени схватывани , причем порцию цемеита с наикратчайщим сроком схватывани нагнетают в затрубное пространство на высоту зоны, лежащей над подлежащим тампонажу под давлением горизонтом, и после истечени срока схватывани этой . порции продолжают нагнетать под давлением остальной цементный раствор.The method of cementing wells under pressure, characterized in that, in order to create a cement bridge over the horizon to be tamped under pressure, cement mortar is pumped into the well continuously with successive portions with different characteristics of the setting time, and a portion of ceiteite with the shortest setting time is pumped into the annulus to the height of the zone lying above the tamping under the pressure of the horizon, and after the expiration of this period. portions continue to pump the rest of the cement mortar under pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU627938A SU126086A1 (en) | 1959-05-12 | 1959-05-12 | Method of cementing wells under pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU627938A SU126086A1 (en) | 1959-05-12 | 1959-05-12 | Method of cementing wells under pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU126086A1 true SU126086A1 (en) | 1959-11-30 |
Family
ID=48397407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU627938A SU126086A1 (en) | 1959-05-12 | 1959-05-12 | Method of cementing wells under pressure |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU126086A1 (en) |
-
1959
- 1959-05-12 SU SU627938A patent/SU126086A1/en active
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