SU1736223A1 - Device for treating well walls - Google Patents
Device for treating well wallsInfo
- Publication number
- SU1736223A1 SU1736223A1 SU4737844/03A SU4737844A SU1736223A1 SU 1736223 A1 SU1736223 A1 SU 1736223A1 SU 4737844/03 A SU4737844/03 A SU 4737844/03A SU 4737844 A SU4737844 A SU 4737844A SU 1736223 A1 SU1736223 A1 SU 1736223A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- casing
- perforation
- working fluid
- spring
- whirl chamber
- Prior art date
Links
Landscapes
- Paper (AREA)
Abstract
FIELD: mining engineering. SUBSTANCE: device has hollow casing 1, spring-loaded radial sleeve 3 mounted in its wall and having whirl chamber 4 communicating to the casing cavity through tangential holes 5. Blind tube with radial holes is axially mountable inside hollow casing 1 to attach spring-loaded radial sleeves 3. The open end of the blind tube is located in the space behind the casing. Draw out spring-loaded radial members having dielectric tips are mountable in casing 1. The device operates as follows. Working fluid is supplied through the whirl chamber to the well walls forming fan-shaped flows cleaning the walls in the cleaning mode. A part of the working fluid washes off dirt from perforation channels leading into the well cavity. The perforation channel deepening mode is characterized by pressure developed in the cavity of casing 1 enough to make sleeves 3 get out of the casing and approach tightly the perforation channel openings. Working fluid jet curled in whirl chamber 4 slides along the perforation channel walls owing to the centrifugal forces and washes out the channel walls and end face. Used up working fluid together with slime escapes in the center of channel along the whirl chamber axis and is discharged into the surrounding space outside the casing. The draw out spring-loaded radial members with dielectric tips enable electric contact to be made with the casing string in the case the draw-out members enter the perforation holes. EFFECT: wider range of functional applications. 4 cl, 6 dwg
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU4737844/03A SU1736223A1 (en) | 1989-09-18 | 1989-09-18 | Device for treating well walls |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU4737844/03A SU1736223A1 (en) | 1989-09-18 | 1989-09-18 | Device for treating well walls |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1736223A1 true SU1736223A1 (en) | 1995-11-10 |
Family
ID=60530846
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU4737844/03A SU1736223A1 (en) | 1989-09-18 | 1989-09-18 | Device for treating well walls |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1736223A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7182138B2 (en) | 2000-03-02 | 2007-02-27 | Schlumberger Technology Corporation | Reservoir communication by creating a local underbalance and using treatment fluid |
RU2450118C1 (en) * | 2010-12-27 | 2012-05-10 | Дмитрий Николаевич Репин | Device for selective cleaning of perforation channels and bottomhole formation zone of conventionally unlimited thickness |
RU2453693C2 (en) * | 2006-12-18 | 2012-06-20 | КонокоФилипс Компани | Formation hydraulic fracturing method |
RU2655278C2 (en) * | 2013-06-27 | 2018-05-24 | Веллтек А/С | Downhole cleaning tool and cleaning method |
-
1989
- 1989-09-18 SU SU4737844/03A patent/SU1736223A1/en active
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7182138B2 (en) | 2000-03-02 | 2007-02-27 | Schlumberger Technology Corporation | Reservoir communication by creating a local underbalance and using treatment fluid |
RU2453693C2 (en) * | 2006-12-18 | 2012-06-20 | КонокоФилипс Компани | Formation hydraulic fracturing method |
RU2450118C1 (en) * | 2010-12-27 | 2012-05-10 | Дмитрий Николаевич Репин | Device for selective cleaning of perforation channels and bottomhole formation zone of conventionally unlimited thickness |
RU2655278C2 (en) * | 2013-06-27 | 2018-05-24 | Веллтек А/С | Downhole cleaning tool and cleaning method |
US10214997B2 (en) | 2013-06-27 | 2019-02-26 | Welltec A/S | Downhole cleaning tool and cleaning method |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
NZ504075A (en) | Downhole roller vane motor with a rotor within a housing having wing deflector cams and outlet ports , the rotor having recess in which rollers extend and retract | |
SU1736223A1 (en) | Device for treating well walls | |
RU2062862C1 (en) | Nozzle for one-piece drilling tool | |
EP0075185A3 (en) | Dust evacuation for a hollow drill | |
CS241987B1 (en) | Centrifuge for hydraulic drives' power liquids cleaning | |
EP0273974A4 (en) | Device for making holes in ground. | |
SU623954A1 (en) | Device for building up reverse circulation in borehole | |
SU866122A1 (en) | Apparatus for drilling boreholes | |
CN214033041U (en) | Clothes treatment equipment | |
RU1779276C (en) | Drilling bit | |
ATE220887T1 (en) | HYDROMASSAGE JET WITH VOLTAGE CHAMBER | |
SU1472162A1 (en) | Device for cleaning inner surface of pipeline | |
SU1539308A1 (en) | Device for cleaning inner spaces from deposits | |
SU1096016A1 (en) | Reagent pulse extension piece | |
SU1594264A1 (en) | Device for sedimenting and cleaning hole walls | |
CN214300868U (en) | Pipeline mounting structure reaches clothing treatment facility including it | |
SU1694844A1 (en) | Drilling device | |
SU1049684A1 (en) | Vertical bore-hole pumping unit | |
SU901456A1 (en) | Flushing assembly for drill bit | |
SU1258409A1 (en) | Hydraulic massaging apparatus for gums | |
SU653387A1 (en) | Device for dust removal at drilling | |
SU1643702A1 (en) | Washing fluid desludging device | |
RU96118855A (en) | TANDEM WELL JET BLOCK | |
ATE66034T1 (en) | TELESCOPIC POLE OR COLUMN LINE. | |
SU941550A1 (en) | Apparatus for cleaning bottom-adjoining area of borehole |