FIELD: oil-and-gas production.
SUBSTANCE: invention related to oil-and-gas production, can be used in well construction. Method includes descending of a casing string lower than thief zone, cementing casing string bottom part through its inner cross section up to thief zone and cementing of the casing string upper part through its string clearance over the thief zone, during cementing of the casing string upper part cement media with a filler or thickener flooded into string clearance at wellhead and pressed through by the cement, with a pressure about 1-5 MPa.
EFFECT: quality increase of string clearance cemented stone.
1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR CEMENTING THE CONDUCTOR, A TECHNICAL COLUMN DURING THE CONSTRUCTION OF WELLS | 2022 |
|
RU2792128C1 |
| METHOD OF WELL CONSTRUCTION | 2008 |
|
RU2366795C1 |
| METHOD FOR OIL AND GAS WELL CASING CEMENTING | 1989 |
|
RU2016188C1 |
| METHOD OF CEMENTING CASING STRING | 2015 |
|
RU2605856C1 |
| METHOD OF WELL STAGE CEMENTING UNDER CONDITIONS OF ABNORMALLY LOW FORMATION PRESSURES IN LOST CIRCULATION ZONE | 2000 |
|
RU2188302C2 |
| METHOD FOR WELL DRILLING | 2012 |
|
RU2478769C1 |
| METHOD FOR WELL CONSTRUCTION | 1991 |
|
RU2012777C1 |
| METHOD OF CEMENTING CASING STRING IN WELL | 2023 |
|
RU2823955C1 |
| METHOD FOR ISOLATION OF THIEF ZONE DURING WELL DRILLING | 2015 |
|
RU2588074C1 |
| WELL CEMENTING METHOD UNDER CONDITIONS OF ABNORMALLY LOW RESERVOIR PRESSURES | 2021 |
|
RU2775319C1 |
