CN2264803Y

CN2264803Y - Runaway blowout well head rush-assembling device

Info

Publication number: CN2264803Y
Application number: CN 96227348
Authority: CN
Inventors: 贾玉武; 刘国庆; 王新安; 李景正; 綦耀升
Original assignee: HEKOU OIL PRODUCTION FIELD SHE
Current assignee: Shandong Xindatong Petroleum Environmental Protection Science and Technology Co.
Priority date: 1996-02-15
Filing date: 1996-02-15
Publication date: 1997-10-15
Anticipated expiration: 2006-02-15

Abstract

The utility model discloses a runaway blowout well head rush-assembling device used for various petroleum and gas wells, composed of an upper slip, a lower slip, an upper shaft sleeve, a lower shaft sleeve, a shaft and other components. The upper shaft sleeve is capable of up and down movement and rotation along the shaft. After the blowout, the preassembled well head can be rapidly mounted under the operation of the utility model to avoid the blowout and reduce loss. The utility model provides safety, saves labor, diminishes the number of people participating in the rescue, increases safety factor, eliminates a plurality of conditional restrictions during the blowout rescue, and minimizes the economic loss caused by the blowout.

Description

Blowout installing wellhead device out of control

The utility model relates to the implement of speedily carrying out rescue work of industrial gas oil, particularly a kind of blowout installing wellhead device out of control.

In the oil development process, gas blowout accident out of control happens occasionally, in case take place, must prevent blowout by installing wellhead.At present, robbing dress well out of control gusher mouth is by concentrating in the storming firmly of numerous (tens to up to a hundred) manpower, promptly lifting the shut-in well well head with oil pipe, just rush to well head in blowout, risk will be pre-installed well head screw hole and the contraposition of former well head screw hole, a suitable position, put on a well head screw earlier, rotate in placely again, first-class then 12 king bolts are finished installing wellhead work.The above-mentioned whole process of assembling of robbing all is to carry out in powerful gas stream ejection, and the per pass operation all is difficult to once success, and exists very big danger constantly, there is the once such well head of fashionable dress to need several days, even tens days, and it is big to rob the difficulty of dress work, and success rate neither be too high.Cause the oil well of millions of units to scrap and the serious pollution and the heavy losses of personal injury sometimes.

Purpose of the present invention is robbed assembling device reliably by application technology exactly, and critical process adopts mechanical positioning, reduces work difficulty, accelerate operating rate, reduce the personnel that participation is speedily carried out rescue work, improve the success rate of robbing dress work, avoid personal injury and great economic loss.

Technical solution of the present utility model is: make a kind of device of speedily carrying out rescue work, by upper and lower slips, upper and lower axle sleeve and axle are formed.Upper and lower slips is individually fixed on the upper and lower axle sleeve.Slips is used for former well head of clamping and prepackage well head, and Upper shaft sleeve can rotate also can do along axle and move up and down around axle, and blowout preventer and former well head contraposition are fixed.

Use the utility model can significantly reduce the participation number of speedily carrying out rescue work, safe and reliable, the time of blowout out of control can be shortened to greatest extent, and some highly difficult rescue can be finished reliably.Reduce economic loss, avoid the generation of personnel casualty accidents.

Accompanying drawing is operating principle of the present utility model and structural representation.

Below in conjunction with accompanying drawing the utility model is done further detailed description.Referring to accompanying drawing, the utility model is by upper and lower slips (1,5), and upper and lower axle sleeve (10,7) and axle (8) are formed, and the junction plate (6) between Lower shaft sleeve (7) and the lower slips (5) is split type, on be connected and fixed the hole, on spool (8) locating piece (9) is arranged.Upper and lower slips (1,5) is individually fixed in above the upper and lower axle sleeve (10,7), and Upper shaft sleeve (10) has locating piece.Upper shaft sleeve (10) can be done along axle (8) and move up and down, and can take same upper slips (1) and rotate around axle (8).For ease of carrying, Lower shaft sleeve (7) can be split type, also can be monolithic.When split type, axle (8) has the location stage body with the joint portion of Lower shaft sleeve (7), and Lower shaft sleeve (7) has locating slot.(2) be casing nipple, (3) are blowout preventer, and casing nipple (2) and blowout preventer (3) are the well heads that need rob dress, and (4) are the casing nipple of former well head.After blowout took place, powerful gas stream sprayed from the casing nipple (4) of former well head.The utility model is transported to the blowout scene, at first lower slips (5) is fixed on the former well head casing nipple (4) with screw, then the end of junction plate (6) pin is put on, make the utility model can outward-dipping certain angle, be convenient to operation.With Upper shaft sleeve (10) Rotate 180 ° angle, make upper slips (1) be positioned at the opposite direction of former well head then, prepackage well head [casing nipple (2) and blowout preventer (3)] is installed.To pre-install well head with the screw of upper slips (1) fixes, then the angle of the utility model flare is restored, put on the pin of going up of junction plate (6), then the utility model and former pit shaft two axle center line parallels, rotate the position of Upper shaft sleeve (10) to locating piece (9), at this moment pre-install the well head part with former pit shaft promptly on same axial line.Rotate handwheel, Upper shaft sleeve (10) is moved down, adjust the height of blowout preventer (3).At this moment, casing nipple (2), blowout preventer (3) and former pit shaft are on same axial line, and gas stream promptly sprays from casing nipple (2).Rotate handwheel, Upper shaft sleeve (10) is moved down, upper slips (1) grip sleeve pipe nipple (2) and blowout preventer (3) come downwards to former wellhead flange Pan Chu, and it is fastening with it to put on screw, closes blowout preventer (3) at last, and blowout is prevented, and the installing wellhead task is finished.The utility model is functional, and is safe and reliable, can finish some highly difficult installing wellhead work, as changing well head tap, big four, end flange etc.Entire work process is all carried out under no mechanokinetic situation, has eliminated the conditionality of a lot of blowout rescues.The utlity model has rational in infrastructurely, make characteristics such as simple.

Claims

1, a kind of blowout installing wellhead device out of control that is used for various oil, the natural gas well, it is characterized in that it is by upper and lower slips (1,5), upper and lower axle sleeve (10,7) and axle (8) are formed, upper and lower slips (1,5) is individually fixed on the upper and lower axle sleeve (10,7), junction plate (6) between lower slips (5) and the Lower shaft sleeve (7) is split type, is connected and fixed the hole.

2, blowout installing wellhead device out of control according to claim 1 is characterized in that Upper shaft sleeve (10) has locating piece, on the axle (8) locating piece (9) is arranged, and Upper shaft sleeve (10) can rotate around axle (8), also can do upper and lower moving along axle (8).

3, blowout installing wellhead device out of control according to claim 1 is characterized in that Lower shaft sleeve (7) for split type, also can be a monolithic, and axle when split type (8) has the location stage body with the joint portion of Lower shaft sleeve (7), and Lower shaft sleeve (7) has locating slot.