CN87210515U - Mechanical packer for heating well - Google Patents
Mechanical packer for heating well Download PDFInfo
- Publication number
- CN87210515U CN87210515U CN 87210515 CN87210515U CN87210515U CN 87210515 U CN87210515 U CN 87210515U CN 87210515 CN87210515 CN 87210515 CN 87210515 U CN87210515 U CN 87210515U CN 87210515 U CN87210515 U CN 87210515U
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- screw thread
- ring
- pressure
- well
- packer
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Abstract
The utility model discloses a device which seals an oil removal pipe and a casing tube annular space of a thermal production well used for pouring steam to stratum, a thermal cycle production well and a high temperature and pressure stratum heat utilization well. The utility model overcomes the problems of which old type packers are unable to realize base seal at one time and unseal sometimes with high working capacity and low efficiency because the utility model is provided with a pressure anchor gear and all parts adopt refractory metallic materials, and is characterized in sealing the oil removal pipe and the casing tube annular space under the condition of high temperature and pressure, downing into the well with a heat-insulated pipe at one time, unsealing by means of lifting force and preventing automatically unsealing of gas cap.
Description
The utility model is a kind of thermal production well, thermal cycle producing well and high temperature, high pressure formation heat energy utilization well that is used for annotating to the stratum steam, the device of packing oil pipe and sleeve pipe annular space.
The present thermal packer that adopts, what have will deliver to desired position, down-hole seat to packer earlier with special tubing string and be honored as a queen, propose special tubing string and be lowered to heat-proof string again, and it is inserted into delivered in the packer of down-hole in advance, reached the purpose of packing oil casing annular space.After treating that this packer uses, must propose heat-proof string earlier, lower tubular column is salvaged packer again.Use old-fashioned thermal packer work operations amount big, efficient is low, the deblocking difficulty, even can not deblocking, often cause workover thus.According to statistics, the use success rate of old-fashioned thermal packer only is 60%.
The thermal packer that has can once be delivered to the position that the down-hole needs to tubing string, adopts hydraulic pressure (waterpower) seat envelope.But this operation must have big shape equipment to cooperate, and during deblocking because structure, urceolus is often lost easily in well, need carry out secondary and salvage.According to statistics, the use success rate of this kind packer also only is 78%.
The purpose of this utility model be to provide a kind of can be at the situation lower seal oil removal pipe of HTHP and the packer of sleeve pipe annular space, and possessing can be with instlated tubular once down in well, realize once seat envelope, and can realize deblocking by lift, possess the characteristics that prevent the automatic deblocking of pneumatic jack simultaneously.
Fig. 1 is a structure chart of the present utility model, and Fig. 2 is the expanded view of track central tube track part.(1) is to become the snapping head among the figure, and (2) are the track central tubes, and (3) are slip rings, (4) be the slip ring pin, (5) are slip ring sleeves, and (6) are wiper blocks, (7) be spring, (8) are centralizer bodies, and (9) are slip spiders, (10) be garter spring, (11) are slips, and (12) are to cut off pin, (13) be cone, (14) are baffle rings, and (15) are seal joints, (16) be joint ring, (17) are guard rings, and (18) are adjustable rings, (19) be joint, (20) are helmets, and (21) are hold-down rings, (22) be lower sealing ring, (23) be packing, (24) are the upper slips seats, and (25) are to go up close ring, (26) be upper slips, (27) be to cut off pin, (28) are upper cones, and (29) are tube connectors, (30) be sealed tube, (31) are pressure caps.
Use the utility model that oil well is carried out when setting, by behind the required setting height upper lifting pipe post, transfer tubing string, the centralizer that is made up of (3) slip ring to 7 parts of (9) slip spider is under the effect of spring (7) tension force, wiper block (8) rubs mutually with casing wall, and the track groove along track central tube (2) (showing such as Fig. 2) moves simultaneously. As a result, slip ring pin (4) moves to setting position from the top dead-centre of short groove---the top dead-centre of elongated slot. Slips (11) becomes softened state from rounding state, is clamped on the inwall of sleeve pipe. Meanwhile cutting off pin (12) is cut off under the effect of certain tubing string weight, joint (19), adjustable ring (18) and central tube (2) are together descending, compression seal ring (16), guard ring (17) are out of shape, thereby realize the annular space of disposable packing oil pipe and sleeve pipe. Continue on this basis afterburning, cut off pin (27) and be cut off, upper cone (28), sealed tube (30), pressure cap (31) are descending, and cone is opened upper slips (26), make its card jail on internal surface of sleeve pipe, thus can prevent packer in annotating vapour because of the automatic deblocking of pneumatic jack.
When the needs deblocking, the upper lifting pipe post is mentioned pressure cap (31), sealed tube (30), upper cone (28), and upper slips (26) is drawn in along the track of upper cone (28), leaves casing wall.Carry in the continuation, upper cone (28) rises together for the pipe (29) that is dynamically connected, upper slips seat (24), helmet (20), joint (19), adjustable ring (18), track central tube (2), slip ring pin (4) runs to bottom dead centre, cone (13) withdraws from slips (11), slips (11) draws unfreezing in, draws bad joint ring (16) to realize deblocking.
The utility model is owing to being provided with the pressure anchor of being made up of to (31) pressure cap (20) helmet, so can prevent the pneumatic jack deblocking.
Owing to be provided with the sealing drum of forming by (16) joint ring, (17) guard ring, can effectively seal to the tubular space of the oil jacket under high temperature, the high-pressure situations.
Owing to adopted the track central tube (2) that uses on the former low temperature packer, thereby packer can be realized once seat envelope, and can realize deblocking by lift with instlated tubular once down in well.
Because the used whole parts of the utility model have all adopted resistant to elevated temperatures metal material, so enough intensity is arranged under high temperature, high-pressure situations.
Therefore, the utility model also possesses easy to use, easy grasp, safe and reliable, characteristics such as cost is low, efficient height except that having above-mentioned functions.
Example:
Accompanying drawings.Show as Fig. 1, the pressure anchor by helmet (20) to pressure cap (31) totally 12 parts form.Helmet (20) is the metallic sheath of a band tapered tail, connects with joint (19) and upper slips seat respectively with screw thread, with the hold-down ring (21) in the protection helmet (20).Hold-down ring (21) connects with upper slips seat (24) screw thread, and upper sealing ring (25), packing (23), lower sealing ring (22) are sleeved on the sealed tube (30) successively, under the pressure of hold-down ring (21), play sealing function.Slips (26) directly is sleeved on the slip spider (24), and the other end is inserted in the dovetail groove of upper cone (28).Tube connector (29) connects with upper slips seat (24) with screw thread, is arranged in upper cone (28) inner chamber.Cut off pin (27) and be installed on the upper cone (28), together tube connector (29) and upper cone (24) pin joint with screw thread.Sealed tube (30) is installed on the pressure cap (31) with screw thread, and pressure cap (31) uses screw thread to connect with upper cone (28) simultaneously.
When pressure cap (31) sealed with the instlated tubular Connection Block, pressure cap (31) was descending, for movable sealing pipe (30), upper cone (28) is descending together, cuts off and cuts off pin (27), and upper cone (28) awl is opened slips (26), make its card jail on casing wall, just can realize preventing pneumatic jack deblocking voluntarily.
During deblocking, on carry instlated tubular, above-mentioned each part once proposes whole parts of packing by the motion of opposite program, realizes deblocking.
Shown in Figure 2 is the track part of track central tube (2).The track central tube is the device that uses on the low temperature packer, and this device is moved on the thermal packer, can realize oil casing annular space seat envelope once.This track central tube (2) is linked together with screw thread and helmet (1), joint (9) as shown in Figure 2, is sleeved on the centre of slip ring (3) to adjustable ring parts such as (8).Length overall of the present utility model is 2762mm.Pressure anchor length overall is 972mm, the external diameter of pressure cap (31) is φ 150mm, long 175mm, internal diameter is 21/2 plain end oil well pipe button, the length overall of sealed tube (30) is 570mm, external diameter is φ 73mm, internal diameter is φ 62mm, the long 235mm of upper cone (28), external diameter is φ 150mm, internal diameter φ 91mm, tapering is 1:5, the long 320mm of tube connector (29), maximum outside diameter is φ 110mm, internal diameter is φ 73mm, the long 150mm of upper slips (26), wide 40mm, tapering 1:5, the wide 15mm of upper sealing ring (25), external diameter φ 112mm, internal diameter φ 73mm, upper slips (24) long 230mm alive, external diameter φ 150mm, internal diameter is the screw thread of M90 * 3, the long 70mm of hold-down ring (21), the screw thread of external diameter φ M118 * 2, internal diameter φ 74.5mm, the long 230mm of helmet (20), external diameter φ 152mm, internal diameter φ 74mm.
Track center pipe range 1710mm, long track 993mm, short track 743mm, seal section external diameter φ 103mm.
The utility model is the requirement of strength that satisfies under the high-temperature condition, and all component are all selected exotic material for use, and wherein, track central tube (2), sealed tube (30), slip ring (3), baffle ring (14), pin (4) are 35CrM
0, wiper block (6), upper slips (26) are 20CrM
0, spring (7) is 1Cr18Ni9Ti, and garter spring (10) is 1Cr18Ni9Ti, and slips (11) is 38CrM
0A1, cone (13), change snapping head (1), seal joint (15), joint (19), helmet (20), hold-down ring (21), upper slips seat (24), seat offset nail (27), upper cone (28), tube connector (29), pressure cap (31) are 45
#Steel, sealing ring (16) is the asbestos copper wire, guard ring (17), adjustment ring (18) they are A
3Steel, lower sealing ring (22), upper sealing ring (25) they are brass, packing (23) is an expanded graphite.
Claims (4)
1, a kind of mechanical type thermal packer, be used for thermal production well to the stratum steam injection, thermal cycle producing well and high temperature, the packing of the oil pipe of high pressure heat energy utilization well and the annular space of sleeve pipe, it is characterized in that having one by helmet (20) to pressure cap (31) totally 12 pressure anchors that part is formed, helmet (20) is the metallic sheath of a band tapered tail, connect with joint (19) and upper slips seat respectively with screw thread, hold-down ring (21) connects with upper slips seat (24) screw thread, upper sealing ring (25), packing (23), lower sealing ring (22) is sleeved on the sealed tube (30) successively, slips (26) directly is sleeved on the slip spider (24), the other end is inserted in the dovetail groove of upper cone (28), tube connector (29) connects with upper slips seat (24) with screw thread, be arranged in upper cone (28) inner chamber, cutting off pin (27) is installed on the upper cone (28) with screw thread, tube connector (29) and upper cone (24) pin joint together, sealed tube (30) is installed on the pressure cap (31) with screw thread, and pressure cap (31) uses screw thread to connect with upper cone (28) simultaneously.
2, mechanical type thermal packer according to claim 1 is characterized in that having a sealing drum of being made up of joint ring (16), guard ring (17).
3, according to claim 1,2 described mechanical type thermal packers, it is characterized in that adopting the track central tube (2) that uses on the low temperature packer.
4, according to claim 1,2,3 described mechanical type thermal packers, it is characterized in that whole parts have all adopted resistant to elevated temperatures metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87210515 CN87210515U (en) | 1987-09-02 | 1987-09-02 | Mechanical packer for heating well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87210515 CN87210515U (en) | 1987-09-02 | 1987-09-02 | Mechanical packer for heating well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87210515U true CN87210515U (en) | 1988-05-11 |
Family
ID=4825440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87210515 Withdrawn CN87210515U (en) | 1987-09-02 | 1987-09-02 | Mechanical packer for heating well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87210515U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101663460B (en) * | 2007-09-20 | 2013-10-16 | 法克有限公司 | Oil well completion tool having severable tubings string barrier disc |
| CN104563956A (en) * | 2014-01-24 | 2015-04-29 | 大庆红祥寓科技有限公司 | Two-way anchored well plugging device |
| CN107387046A (en) * | 2017-08-03 | 2017-11-24 | 中国石油集团长城钻探工程有限公司 | A kind of thermal recovery produces integral tubular column |
-
1987
- 1987-09-02 CN CN 87210515 patent/CN87210515U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101663460B (en) * | 2007-09-20 | 2013-10-16 | 法克有限公司 | Oil well completion tool having severable tubings string barrier disc |
| CN104563956A (en) * | 2014-01-24 | 2015-04-29 | 大庆红祥寓科技有限公司 | Two-way anchored well plugging device |
| CN107387046A (en) * | 2017-08-03 | 2017-11-24 | 中国石油集团长城钻探工程有限公司 | A kind of thermal recovery produces integral tubular column |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |