FIELD: oil and gas industry.
SUBSTANCE: invention relates to oil and gas industry and can be employed at production of liquid and gases from earth deposits. A well filtering device incorporates coupling and nipple, bearing frame made out of a perforated tube, filtering element, mounted on the bearing frame and closed from inside with a protective case with perforations. The protective case is made out of metal sheet with not-round holes punched in the said sheet, at that punching is not made along the total perimeter of holes and punched portion is bent. The bent part of punched elements is designed to prevent ingression of rock inside when the filtering element is lowered into the well.
EFFECT: upgraded rate of flow in well.
8 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| WELL FILTER | 2007 |
|
RU2347890C2 |
| DEMOUNTABLE WELL SCREEN | 2007 |
|
RU2348795C1 |
| WELL FILTER AND ITS MANUFACTURING METHOD | 2007 |
|
RU2347891C2 |
| WELL FILTERS STRING AND METHOD OF WELL FILTERS STRING ASSEMBLY | 2008 |
|
RU2378496C1 |
| COMBINED WELL SCREEN | 2007 |
|
RU2359109C2 |
| ARRANGEMENT OF WELL STRAINERS FOR DECREASING FLOODING OF OIL WELLS | 2008 |
|
RU2388904C2 |
| DEVICE TO REDUCE OIL WELL DROWNING | 2008 |
|
RU2378500C1 |
| WELL TYPESET FILTER | 2008 |
|
RU2374432C2 |
| SLOTTED FILTER WITH WIRED FILTRATING ELEMENT | 2008 |
|
RU2378494C1 |
| MULTIPURPOSE WELL SCREEN | 2007 |
|
RU2364709C2 |
