CN2825933Y - Manual hydraulic blowout preventer for sealing square drill rod and drill rod - Google Patents
Manual hydraulic blowout preventer for sealing square drill rod and drill rod Download PDFInfo
- Publication number
- CN2825933Y CN2825933Y CN 200520021631 CN200520021631U CN2825933Y CN 2825933 Y CN2825933 Y CN 2825933Y CN 200520021631 CN200520021631 CN 200520021631 CN 200520021631 U CN200520021631 U CN 200520021631U CN 2825933 Y CN2825933 Y CN 2825933Y
- Authority
- CN
- China
- Prior art keywords
- square
- drill rod
- housing
- drilling rod
- glue core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model relates to a manual fluid control blowout preventer for sealing square drill rods and drill rods, which mainly solves the problem of short service life of the existing self-seal rubber core for drill rods. The utility model is characterized in that a liquid bag sleeve (3) and a housing (1) form an oil chamber (7), and the wall of an inner hole of a rubber core (2) has a shape with a square upper part and a round lower part. When pressurizing control is not carried out, a gap exists between the wall of an inner cylindrical hole of the rubber core (2) and a drill rod, and no gap exists between the wall of a square hole and a square drill rod. The blowout preventer can seal square drill rods as well as drill rods and has the characteristics of favorable sealing effect, safety and long service life of the rubber core.
Description
Technical field:
The utility model relates to oil well repairing operation realization band and presses the annular space overflow prevention device that removes drilling rod, utilizes the kelly bar sand washing, belongs to a kind of hand hydraulically controlled preventer that seals kelly bar, drilling rod.
Background technology:
During oil well repairing operation, drilling rod is self-styled to be to cross the compressing sealing that the living convergent force of the outer occipitoposterior position (of the fetus) of large diameter pipe post glue core forms by minor diameter glue core retainer plate, and it fixedly is to pin self-styled sulfuration iron core by jackscrew.Liquid easily takes place during work advance to spatter with rubber and iron core and peel off phenomenon, lack application life, can't seal kelly bar in addition when the sand washing operation.
The utility model content:
In order to overcome existing short deficiency of drilling rod self-sealing rubber core cover life-span, the utility model provides a kind of hand hydraulically controlled preventer that seals kelly bar, drilling rod, this preventer can seal kelly bar again can sealing drilling rod, has good sealing effect, safe and reliable and characteristics that the glue core life-span is long.
The technical solution of the utility model is: a kind of hand hydraulically controlled preventer that seals kelly bar, drilling rod comprises housing, glue core and liquid capsule cover, form the grease chamber by liquid capsule cover with housing, the inner hole wall of glue core is the square top and round bottom shape, not gapped between the interior cylinder hole wall of glue core and the drilling rod during pressurized control, there is not the gap between square hole wall and the kelly bar.
Have annular groove on the external cylindrical surface of above-mentioned housing upper end, housing connects gland by bolt locking fixture block.
The utlity model has following beneficial effect: owing to take such scheme, band is pressed when removing drilling rod, utilize the grease chamber's pressure between housing and the liquid capsule cover to regulate the sealing effectiveness of glue core, hydraulic hand-pump is set up initial pressure, accumulator is regulated the glue core, realized of the reducing dynamic seal (packing) of glue core to diameter phi 73mm～114mm drilling rod, when single rubber core removes at casing pressure 10Mpa traveling system, can cross drilling rod 6000m continuously, salable drilling rod in the process of removing, salable kelly bar in the sand washing process, good sealing effect, safe and reliable, glue core long service life.
Description of drawings:
Accompanying drawing 1 is a structure sectional view of the present utility model;
Accompanying drawing 2 is vertical views of Fig. 1.
1-housing among the figure, 2-glue core, 3-capsule set, 4-fixture block, 5-bolt, 6-gland, 7-grease chamber.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
By Fig. 1 in conjunction with shown in Figure 2, a kind of hand hydraulically controlled preventer that seals kelly bar, drilling rod comprises housing 1, glue core 2 and liquid capsule cover 3, form grease chamber 7 by liquid capsule cover 3 with housing 1, the inner hole wall of glue core 2 is the square top and round bottom shape, not gapped between the interior cylinder hole wall of glue core 2 and the drilling rod during pressurized control, there is not the gap between square hole wall and the kelly bar.Have annular groove on the external cylindrical surface of housing 1 upper end, housing 1 connects gland 6 by bolt 5 locking fixture blocks 4, easy installation and removal, and attachment security is reliable.
During actual the use, band is pressed when removing drilling rod, utilize grease chamber 7 pressure of housing 1 and liquid capsule cover between 3 to regulate the sealing effectiveness of glue core 2, hydraulic hand-pump is set up initial pressure, accumulator is regulated glue core 2, realized the reducing dynamic seal (packing) of 2 pairs of diameter phi 73mm～114mm drilling rods of glue core, when single rubber core 2 removes at casing pressure 10Mpa traveling system, can cross drilling rod 6000m continuously, salable drilling rod in the process of removing, salable kelly bar in the sand washing process, good sealing effect, safe and reliable, glue core long service life.
Claims (2)
1, a kind of hand hydraulically controlled preventer that seals kelly bar, drilling rod, comprise housing (1), glue core (2) and liquid capsule cover (3), it is characterized in that: form grease chamber (7) by liquid capsule cover (3) and housing (1), the inner hole wall of glue core (2) is the square top and round bottom shape, not gapped between the interior cylinder hole wall of glue core (2) and the drilling rod during pressurized control, there is not the gap between square hole wall and the kelly bar.
2, a kind of hand hydraulically controlled preventer that seals kelly bar, drilling rod according to claim 1 is characterized in that: have annular groove on the external cylindrical surface of housing (1) upper end, housing (1) connects gland (6) by bolt (5) locking fixture block (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520021631 CN2825933Y (en) | 2005-09-14 | 2005-09-14 | Manual hydraulic blowout preventer for sealing square drill rod and drill rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520021631 CN2825933Y (en) | 2005-09-14 | 2005-09-14 | Manual hydraulic blowout preventer for sealing square drill rod and drill rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2825933Y true CN2825933Y (en) | 2006-10-11 |
Family
ID=37066118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520021631 Expired - Fee Related CN2825933Y (en) | 2005-09-14 | 2005-09-14 | Manual hydraulic blowout preventer for sealing square drill rod and drill rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2825933Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101899957A (en) * | 2010-05-14 | 2010-12-01 | 濮阳市益新石油技术有限公司 | Movable self-sealing preventor |
-
2005
- 2005-09-14 CN CN 200520021631 patent/CN2825933Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101899957A (en) * | 2010-05-14 | 2010-12-01 | 濮阳市益新石油技术有限公司 | Movable self-sealing preventor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |