CN2358221Y - Wellhead slip diverting blowout preventer box - Google Patents
Wellhead slip diverting blowout preventer box Download PDFInfo
- Publication number
- CN2358221Y CN2358221Y CN 98216611 CN98216611U CN2358221Y CN 2358221 Y CN2358221 Y CN 2358221Y CN 98216611 CN98216611 CN 98216611 CN 98216611 U CN98216611 U CN 98216611U CN 2358221 Y CN2358221 Y CN 2358221Y
- Authority
- CN
- China
- Prior art keywords
- slips
- blowout prevention
- prevention box
- leakproof
- roller
- 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
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- Pressure Vessels And Lids Thereof (AREA)
Abstract
The utility model relates to a wellhead slip split-flow blowout preventing box for the pumping technology of an oil field, which is mainly composed of a guide wheel 2, an opening pressing cap 3, a central pipe 8 of the blowout preventing box, a sealing rubber pad 9, a connection head 1, a safety joint 16, etc. The utility model is characterized in that a central hole of the central pipe 8 of the blowout preventing box is provided with a blowout preventing slip, the lower part of the central pipe 8 of the blowout preventing box is provided with a diversion hole 10, and the outer part of the central pipe 8 of the blowout preventing box is provided with a water accumulation bucket 7 through a water accumulation flange 14. The utility model can effectively prevent that downthehole liquid is overflowed from a wellhead in the process of pumping technology, and accordingly, the utility model reaches the purposes that environment is protected and the loss of crude oil is avoided.
Description
The utility model relates to a kind of employed wellhead blowout preventer of technology that aspirates in the oil field operation process.
In oil field formation testing operation and workover treatment process, suction technology is indispensable operation procedure.The present blowout prevention box that in suction technology, uses, boom hoist cable is directly to pass blowout prevention box internal diameter to be connected with aspirator, in aspiration procedure, because there is bigger gap between wire rope and the blowout prevention box internal diameter, thus in aspiration procedure, can't realize sealing, thus cause down-hole liquid very serious in the leakage of blowout prevention box upper end, both contaminated environment, cause the crude oil loss again, also cause measuring parameter to exist simultaneously, thereby influence the ordinary production in oil well later stage than mistake.On the other hand, because the safety joint internal diameter of existing blowout prevention box is less, in operating process, if when the position of suction draw cord is not obvious, aspirator takes place easily fall into accident in the well.
The purpose of this utility model provides a kind of well head slips shunting blowout prevention box of good leak-proof effect.
The utility model mainly is made up of directive wheel 2, opening pressure cap 3, blowout prevention box central tube 8, seal gasket 9, connector 15, safety joint 16 etc., it is characterized in that in the centre bore of blowout prevention box central tube 8 leakproof slips (4 being housed, 5), in the bottom of blowout prevention box central tube (8) pod apertures (10) is arranged, blowout prevention box central tube (8) is outside to be equipped with ponding bucket (7) by ponding flange (14).
Aforesaid well head slips shunting blowout prevention box is characterized in that leakproof slips (4,5) is 1 to 3 group; Each group leakproof slips is made up of last leakproof slips 4 and following leakproof slips 5, and upper and lower leakproof slips structure is identical, and assembly direction is opposite; Slips roller (17) is equipped with at leakproof slips middle part, and slips roller (17) is contained on the roller bearing (18), and roller bearing (18) two ends are fixing by jackscrew (19), and the part of slips roller (17) excircle is exposed the fluting of leakproof slips.
Aforesaid well head slips shunting blowout prevention box is characterized in that on the excircle of described leakproof slips (4,5) arc groove being arranged, and by anticreep spring 6 the leakproof slip sleeve is contained in the blowout prevention box central tube 8.
Aforesaid well head slips shunting blowout prevention box, it is characterized in that described directive wheel 2 is made up of two rollers, the axial length of one of them roller is greater than the axial length of another roller, and a less roller is installed in the outer rim of the bigger roller of axial length; One of the outer slot cross-section of roller is a circular arc, and another is square.
Aforesaid well head slips shunting blowout prevention box is characterized in that described pod apertures 10 is two symmetrical distributions.
Aforesaid well head slips shunting blowout prevention box is characterized in that the outer warp of the internal diameter of described safety joint greater than the down-hole aspirator.
Advantage of the present utility model is: 1. after installing slips additional in blowout prevention central tube 8, can prevent effectively that liquid overflows from the blowout prevention top in the well, pod apertures 10 and ponding bucket 7 by blowout prevention central tube bottom, the liquid that enters in the blowout prevention box can be collected, among the special container of mozzle 11 inputs.2. directive wheel of the present utility model, can guarantee wire rope to neutrality, thereby eliminate the wearing and tearing of wire rope to blowout prevention box central tube 8.3. after the internal diameter of safety joint strengthens,, also aspirator can be proposed well head, fall into accident in the well thereby avoid taking place aspirator even the excessive situation of the amount of carrying on the wire rope takes place.
Fig. 1 is the utility model structure chart;
Fig. 2 is the utility model A-A sectional view;
Fig. 3 is the utility model leakproof slips sectional view;
Fig. 4 is the utility model opening pressure cap master pseudosection;
Fig. 5 is the utility model opening pressure cap vertical view.
The utility model is further specified as follows below in conjunction with accompanying drawing:
As depicted in figs. 1 and 2, the utility model mainly is made up of directive wheel 2, opening pressure cap 3, blowout prevention box central tube 8, seal gasket 9, connector 15, safety joint 16 etc., leakproof slips (4 and 5) is housed in the centre bore of blowout prevention box central tube 8, one fluting is arranged, so that clamp wire rope 1 on the leakproof slips.Last leakproof slips 4 is identical with following leakproof slips 5 structures, and assembly direction is opposite, and upper and lower leakproof slips is installed on the center with wire rope 1.On the excircle of leakproof slips deep-slotted chip breaker is arranged, anticreep spring 6 is contained in the leakproof slip sleeve in the blowout prevention box central tube 8.Pod apertures 10 is arranged at the bottom at blowout prevention box central tube 8, and pod apertures 10 is two symmetrical distributions.Ponding bucket 7 is equipped with by the ponding flange 14 of bottom in blowout prevention box central tube 8 outsides, be connected with tapered sleeve 12 by cone 13 between ponding flange 14 and the ponding bucket 7 and seal, ponding flange 14 has two holes, enters in the special container so that mozzle 11 will enter the down-hole liquid of ponding bucket.Anti-overflow rubber cushion 20 and screen cloth 21 are housed on the top of ponding bucket 7.Directive wheel 2 is made up of two rollers, the axial length of one of them roller is greater than the axial length of another roller, make the less roller of axial length be installed in the bigger roller outer rim of axial length, wire rope 1 is by behind the directive wheel, two rollers can guarantee wire rope to neutrality; One of the outer slot cross-section of roller is a circular arc, and another is square.In order to prevent that the accident that aspirator is fallen in the well because of maloperation from taking place, the utility model strengthens the internal diameter of safety joint, makes it the external diameter greater than the down-hole aspirator.Wire rope 1 upper end is connected with lifting means, and the lower end is connected with the down-hole aspirator.
As shown in Figure 3, slips roller 17 is equipped with at the middle part of leakproof slips, slips roller 17 is contained on the roller bearing 18, roller bearing 18 two ends are fixing by jackscrew 19, the part of slips roller 18 excircles is exposed the fluting of leakproof slips, when making wire rope 1, directly contact, examine thereby reduce to rub with the slips roller by the leakproof slips.Also roller bearing 18 can be removed, directly load onto ball at the two ends of slips roller 17, and then fixing with jackscrew 19.
As shown in Figure 4 and Figure 5, fluting one end at opening pressure cap 3 middle parts reaches the end, and the other end then reaches the middle and upper part of opening pressure cap, and caping has two installing holes that directive wheel is installed.
Claims (10)
1. the well head slips is shunted the blowout prevention box, mainly form by directive wheel (2), opening pressure cap (3), blowout prevention box central tube (8), seal gasket (9), connector (1), safety joint (16) etc., it is characterized in that in the centre bore of blowout prevention box central tube (8) leakproof slips (4,5) being housed, in the bottom of blowout prevention box central tube (8) pod apertures (10) is arranged, blowout prevention box central tube (8) is outside to be equipped with ponding bucket (7) by ponding flange (14).
2. according to the well head slips shunting blowout prevention box of claim described 1, it is characterized in that leakproof slips (4,5) is 1 to 3 group.
3. well head slips according to claim 2 shunting blowout prevention box is characterized in that each group leakproof slips is made up of last leakproof slips 4 and following leakproof slips 5, and two leakproof slips structures are identical, and assembly direction is opposite.
4. well head slips shunting blowout prevention box according to claim 3, it is characterized in that in the middle part of the leakproof slips slips roller (17) being housed, slips roller (17) is contained on the roller bearing (18), roller bearing (18) two ends are fixing by jackscrew (19), and the part of slips roller (18) excircle is exposed the fluting of leakproof slips.
5. well head slips according to claim 4 shunting blowout prevention box is characterized in that described slips roller (17) two ends are equipped with ball, and fixing by jackscrew (19).
6. well head slips according to claim 1 shunting blowout prevention box is characterized in that on the excircle of described leakproof slips arc groove being arranged, and by anticreep spring (6) leakproof slips (4,5) is sleeved in the blowout prevention box central tube (8).
7. well head slips shunting blowout prevention box according to claim 1, it is characterized in that described directive wheel 2 is made up of two rollers, the axial length of one of them roller is greater than the axial length of another roller, and less roller is installed in the outer rim of the bigger roller of axial length.
8. well head slips shunting blowout prevention box according to claim 7 is characterized in that one of the outer slot cross-section of described roller is circular arc, and another is square.
9. well head slips shunting blowout prevention box according to claim 1 is characterized in that described pod apertures (10)) be two symmetrical distributions.
According to claim well head slips shunting blowout prevention box, it is characterized in that the external diameter of the internal diameter of described safety joint (16) greater than the down-hole aspirator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98216611 CN2358221Y (en) | 1998-06-30 | 1998-06-30 | Wellhead slip diverting blowout preventer box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98216611 CN2358221Y (en) | 1998-06-30 | 1998-06-30 | Wellhead slip diverting blowout preventer box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2358221Y true CN2358221Y (en) | 2000-01-12 |
Family
ID=33969501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98216611 Expired - Fee Related CN2358221Y (en) | 1998-06-30 | 1998-06-30 | Wellhead slip diverting blowout preventer box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2358221Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103286013A (en) * | 2013-05-11 | 2013-09-11 | 柴盛海 | Top-spraying type dripping-free shower head |
-
1998
- 1998-06-30 CN CN 98216611 patent/CN2358221Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103286013A (en) * | 2013-05-11 | 2013-09-11 | 柴盛海 | Top-spraying type dripping-free shower head |
| CN103286013B (en) * | 2013-05-11 | 2018-06-22 | 柴盛海 | Top-spraying type dripping-free shower head |
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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 |