CN201014135Y

CN201014135Y - Non-stop well pressured plugging device

Info

Publication number: CN201014135Y
Application number: CNU2007200198681U
Authority: CN
Inventors: 吴志刚; ***; 李龙兵; 寇永军; 戴德君; 王洪香; 墨延霞; 王立滨
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-03-22
Filing date: 2007-03-22
Publication date: 2008-01-30
Anticipated expiration: 2017-03-22

Abstract

The utility model provides a nonstop well leakage stoppage device under pressure and belongs to a leakage stoppage device. The utility model has an outer cylinder with outer thread on the lower part, and an inner cylinder arranged on the upper part of the outer cylinder, and the upper part of a flexible internal lever passes through the inner cylinder; a sealing ring is arranged between the middle part of the flexible internal lever and the outer cylinder; the lower end has a mounting hole for the screw blank plug; the inner cavity of the discharge pipe plug at the side of the outer cylinder is communicated with the lower cavity of the outer cylinder. The leakage stoppage device can build up the stealing hole on the oil line while the oil well keeps regular operation and the oil line keeps normal oil transfer pressure, which avoids losses caused by the production halts to stop the leakage. The utility model has the advantages of simple structure, easy operation, high speed in leakage stoppage and low cost.

Description

Do not stop well pressure sealing device

Technical field

The utility model provides a kind of leakage-baffling device, the leakage-baffling device on the oil transport pipeline of especially a kind of oil field.

Background technique

The oil field oil transport pipeline (as single well pipeline, outside defeated main line) on, the lawless person often carries out drilling hole of oil stolen, locates the clip of mounting strap ball valve in the robber hole of being beaten.At present, clip be taken off and repairs when stealing the hole, need the stopping production release, not only influence ordinary production, and frequently stopping production can cause sand output well to shake out, reduce oil well output, increase workover cost.In the winter time, the off-time is long, also can cause problems such as line clogging.

Summary of the invention

Technical problem to be solved in the utility model is, a kind of well pressure sealing device that do not stop is provided, and it can be with under situation about not stopping production and compress into capable plugging operations.

The utility model is to realize like this, do not stop well pressure sealing device, it has the externally threaded urceolus of bottom band, urceolus top is equipped with inner core, the top of bar is passed seal ring is installed between inner core, middle part and the urceolus in movable, there is screw tap plug mounting hole the lower end, and the VENT PLUG inner chamber of urceolus side communicates with the urceolus lower lumen.

That adopts said structure does not stop well pressure sealing device, can have in oil well ordinary production, oil transport pipeline under the situation of fuel transfer pressure, stops up the robber hole on the oil transport pipeline, the loss of having avoided the stopping production leak stopping to bring, simple in structure, easy to operate, blocking speed is fast, cost is low.

Description of drawings

Fig. 1 is the plan view of the utility model structure.

Embodiment

The embodiment who provides below in conjunction with accompanying drawing illustrates concrete structure of the present utility model and using method.

As shown in drawings, the utility model do not stop well pressure sealing device, it has the externally threaded urceolus of bottom band (3), urceolus top is equipped with inner core (2), the top of bar (1) is passed seal ring (4) is installed between inner core, middle part and the urceolus in movable, there is screw tap plug mounting hole (7) lower end, and the VENT PLUG of urceolus side (5) inner chamber communicates with the urceolus lower lumen.

Handle (2-1) can be arranged at inner core top.

During use, reeve screw tap plug (6) and being connected firmly in the screw tap plug mounting hole (7) of bar lower end is installed in pressure-relief valve on the VENT PLUG (5) and with pressure-relief valve and closes in movable.With the outside thread of urceolus, be installed on the ball valve of clip that the lawless person is contained in the robber hole place on the oil transport pipeline by its underpart.Ball valve is opened to fully open position.At this moment, because the effect of seal ring forms sealing between movable interior bar and the inner core, crude oil can not leak.Rotate inner core, the interior bar of its drive activity is moved down, the screw tap plug will withstand on to be stolen on the hole.After this, bar and rotate urceolus simultaneously in the available spanner rotation activity, the head end that makes the screw tap plug are screwed into by screw thread and steal in the hole and tighten.After this, open pressure-relief valve and carry out release, after affirmation does not have pressure, inner core, urceolus are unloaded successively, the screw tap plug is stayed and is stolen on the hole.Clip is taken off from oil transport pipeline.By electric welding the screw tap plug is welded on the oil transport pipeline, after having welded bar in the activity is taken off.At last, the unnecessary part on the screw tap plug can be sliced off, whole leak stopping process is finished.

Claims

1. do not stop well pressure sealing device, it is characterized in that, it has the externally threaded urceolus of bottom band (3), urceolus top is equipped with inner core (2), the top of bar (1) is passed seal ring (4) is installed between inner core, middle part and the urceolus in movable, there is screw tap plug mounting hole (7) lower end, and the VENT PLUG of urceolus side (5) inner chamber communicates with the urceolus lower lumen.