Wells – Receptacles – Lateral ports used in well
Patent
1986-12-09
1988-05-03
Leppink, James A.
Wells
Receptacles
Lateral ports used in well
E21B 2700
Patent
active
047413964
ABSTRACT:
Equipment for depositing processing products in wells after being lowered inside production tubes for depositing cement to seal perforations in the production tube and also for depositing detergents or acid.
A syringe comprises a clock mechanism which, after a given period of time and through the medium of a striker for piercing a cap which seals a pressurized oil reservoir, actuates a hydraulic bolt comprising a barrel, a piston, a fixed liner encased in a movable liner and means for maintaining the movable liner in a raised position.
A central rod rigid with the movable liner traverses a syringe body, of which the filling space is provided with discharge orifices co-operating with a valve carried by the end of the central rod.
REFERENCES:
patent: 2141179 (1938-12-01), Ennis
patent: 2147983 (1939-02-01), Lindsly
patent: 2572493 (1951-10-01), Klaasen et al.
patent: 2577210 (1951-12-01), Ruska
patent: 2896723 (1959-07-01), Barnes
patent: 3692106 (1972-09-01), Basham et al.
Dang Hoang C.
Leppink James A.
Societe Nationale Elf Aquitaine (Production)
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