CN201173109Y

CN201173109Y - Heat insulation compensation apparatus for thick oil steam injection exploitation

Info

Publication number: CN201173109Y
Application number: CNU2008200118056U
Authority: CN
Inventors: 尚广玉; 郑士军; 陈志军
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-03-31
Filing date: 2008-03-31
Publication date: 2008-12-31
Anticipated expiration: 2018-03-31

Abstract

The utility model relates to a ultra-heavy oil steam injection recovery heat insulation and compensation device used in ultra-heavy oil steam injection recovery. The ultra-heavy oil steam injection recovery heat insulation and compensation device is composed of a lower connector, tetrafluoride V-shaped filling material, a sealing element, an outer pipe, an inner pipe, a filling material bin, filling material bin filling material, a filling material pressing ring, a filling material gland bush, a filling material supporting ring, inner pipe filling material, an upper filling material gland bush and an upper connector; two rows of 24 springs are installed in the sealing element, a thermal insulation layer is arranged between the inner pipe and the outer pipe, the lower connector is connected with the outer pipe through thread, the tetrafluoride V-shaped filling material is filled between the inner and the outer pipes, the lower ends of the inner and the outer pipes are welded, the sealing element is installed in a packer, the filling material bin filling material and the filling material pressing ring are installed in the filling material bin and are pressed through the filling material gland bush, the filling material bin is connected with the upper end of the packer through thread, the filling material supporting ring is pressed between the upper ends of the inner and the outer pipes, and is filled with the inner pipe filling material and is pressed through the upper filling material gland bush, and the upper connector is connected with the outer pipe through thread. The device solves the problems that the sealing pressure is insufficient in the prior art, the well jamming easily occurs, the steam injection quality and the thermal efficiency are low, and the cost is high, and the heavy oil steam injection recovery heat insulation and compensation device can be extensively used in ultra-heavy oil steam injection recovery operation.

Description

The heat insulation compensation arrangement of heavy oil exploitation via steam injection

Technical field:

The utility model relates to the heat insulation compensation arrangement of heavy oil exploitation via steam injection of the special heavy oil exploitation via steam injection of a kind of viscous crude.

Background technology:

The existing heavy oil exploitation via steam injection overwhelming majority in China oil field adopts under the packer and connects tail pipe at present, on connect 5-7 root instlated tubular connects instlated tubular again after connecting expansion loop thermal recovery technology and recover the oil, the problem that this technology oil recovery exists is that the sealing load in the instrument is not enough, easy Ka Jing, because steam quality is not enough, reduce the gas injection quality, the thermal efficiency is low, increases cost of production.

The utility model content:

The purpose of this utility model provides the heat insulation compensation arrangement of a kind of special heavy oil exploitation via steam injection, this device solves the sealing load that exists in the prior art not enough, Yi Kajing, steam quality is not enough, reduces the gas injection quality, the thermal efficiency is low, increases the problem of cost of production.

The technical scheme that its technical problem that solves the utility model adopts is: the heat insulation compensation arrangement of heavy oil exploitation via steam injection is made up of lower contact, tetrafluoro V-type filler, seal, outer tube, interior pipe, filler storehouse, filler storehouse filler, packing press ring, gland, packing support plate ring, interior tube packing, last gland, top connection; In the packer of this device, seal is housed, be provided with in the seal with accurate memorial alloy 3J21 material and make in the spring groove in 24 seals of packing into of spring 2 row of external diameter 20mm, pitch 6mm, the long 40mm of spring, between interior pipe and outer tube, be provided with isolation layer, outside interior pipe, be inserted in outer tube behind 2 layers of aluminium foil of winding and 1 layer of alumina silicate silk floss; Lower contact is connected with external pipe thread, tetrafluoro V-type filler packed into twined in the isolation layer between the outer and outer tube of pipe, be welded to connect between interior pipe and the outer tube lower end, seal is packed in the outer packer of outer tube, outer tube can slide at the packer inner chamber, filler storehouse filler and packing press ring packed into compress with gland in the filler storehouse, the filler storehouse is threaded with the packer upper end, in be pressed between pipe and the outer tube upper end and reinstall interior tube packing behind the packing support plate ring and use gland and compress, top connection is connected with external pipe thread.

The beneficial effects of the utility model are, relatively simple for structure, packer and expansion loop are combined as a whole in this device, the sealing strong pressure is big, is difficult for Ka Jing, steam quality 75%, coefficient of heat insulation 0.0412 packer setting and deblocking utilize steam injection stopping temperature rise temperature drop to solve and have replaced handling tubing string, rotation tubing string or brill to mill, manually-operateds such as handling instrument improve and annotate the vapour quality, improve the thermal efficiency.

Description of drawings:

Accompanying drawing is the utility model overall structure schematic diagram.

Among the figure 1, lower contact, 2, tetrafluoro V-type filler, 3, seal, 4, outer tube, 5, interior pipe, 6, the filler storehouse, 7, filler storehouse filler, 8, packing press ring, 9, gland, 10, the packing support plate ring, 11, interior tube packing, 12, go up gland, 13, top connection.

The specific embodiment:

In the drawings, the heat insulation compensation arrangement of heavy oil exploitation via steam injection is made up of lower contact 1, tetrafluoro V-type filler 2, seal 3, outer tube 4, interior pipe 5, filler storehouse 6, filler storehouse filler 7, packing press ring 8, gland 9, packing support plate ring 10, interior tube packing 11, last gland 12, top connection 13; Seal 3 is housed in the packer of this device, is provided with in the seal 3 with accurate memorial alloy 3J21 material and makes in the spring groove in 24 seals 3 of packing into of spring 2 row of external diameter 20mm, pitch 6mm, the long 40mm of spring; Between interior pipe 5 and outer tube 4, be provided with isolation layer, outside interior pipe 5, be inserted in outer tube 4 filling with inert gas argon gas simultaneously behind 2 layers of aluminium foil of winding and 1 layer of alumina silicate silk floss; Lower contact 1 is threaded with outer tube 4, tetrafluoro V-type filler 2 packed into twined in the isolation layer between the outer and outer tube 4 of pipe 5, be welded to connect between interior pipe 5 and outer tube 4 lower ends, seal 3 is packed in the outer packer of outer tube, outer tube 4 can slide at the packer inner chamber, filler storehouse filler 7 and packing press ring 8 packed into compress with gland 9 in the filler storehouse 6, filler storehouse 6 is threaded with the packer upper end, in be pressed between pipe 5 and outer tube 4 upper ends and reinstall interior tube packing 11 behind the packing support plate ring 10 and use gland 12 and compress, top connection 13 is threaded with outer tube 4.

Claims

1, the heat insulation compensation arrangement of a kind of heavy oil exploitation via steam injection is made up of lower contact (1), tetrafluoro V-type filler (2), seal (3), outer tube (4), interior pipe (5), filler storehouse (6), filler storehouse filler (7), packing press ring (8), gland (9), packing support plate ring (10), interior tube packing (11), last gland (12), top connection (13); It is characterized in that: seal (3) is housed in the packer of this device, is provided with in the seal (3) with accurate memorial alloy 3J21 material and makes in the spring groove in spring 2 24 seals of packing into of row (3) of external diameter 20mm, pitch 6mm, the long 40mm of spring; Between interior pipe (5) and outer tube (4), be provided with isolation layer, outside interior pipe (5), be inserted in outer tube (4) filling with inert gas argon gas simultaneously behind 2 layers of aluminium foil of winding and 1 layer of alumina silicate silk floss; Lower contact (1) is threaded with outer tube (4), tetrafluoro V-type filler (2) packed into twined in the isolation layer between the outer and outer tube (4) of pipe (5), be welded to connect between interior pipe (5) and outer tube (4) lower end, seal (3) is packed in the outer packer of outer tube, outer tube (4) can slide at the packer inner chamber, filler storehouse filler (7) and packing press ring (8) packed into compress with gland (9) in the filler storehouse (6), filler storehouse (6) is threaded with the packer upper end, in be pressed between on pipe (5) and the outer tube (4) and reinstall interior tube packing (11) behind the packing support plate ring (10) and use gland (12) and compress, top connection (13) is threaded with outer tube (4).