CN105178906B - Compound action layering vapour drives packer - Google Patents
Compound action layering vapour drives packer Download PDFInfo
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- CN105178906B CN105178906B CN201510631845.5A CN201510631845A CN105178906B CN 105178906 B CN105178906 B CN 105178906B CN 201510631845 A CN201510631845 A CN 201510631845A CN 105178906 B CN105178906 B CN 105178906B
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Abstract
The present invention provides a kind of compound action layering vapour and drives packer, including：Central tube, its two ends are connected with top connection and lower contact by external screw thread correspondence, and its side wall is provided with pressure transmission hole；Exterior central tube, it is set on central tube, and its upper end is connected by what a cutting portion can be separated with the lateral surface of top connection, and exterior central tube outer sheath is provided with regulation ring and cartridge；Dilation, the expansion inner cylinder on exterior central tube is set in including one, expansion overcoat is arranged with expansion inner cylinder, an annular seal space is formed between expansion inner cylinder and expansion overcoat, inflation fluid is filled with annular seal space, the upper end of expansion overcoat is in contact with the lower end of cartridge, provided with locking stopping mechanism between expansion inner cylinder and exterior central tube；The promotion part that dilation can be promoted to move up in fluid injection, it is set on central tube, and adjacent to the downside of dilation, seal and connect between promotion part and the lateral surface of lower contact, between the two provided with a sealing ring cavity connected with pressure transmission hole injected for liquid.
Description
Technical field
The invention belongs to field of petroleum exploitation, in particular to a kind of viscous crude, the compound action of super-viscous oil steam drive
It is layered vapour and drives packer.
Background technology
Liaohe Oilfield Heavy Crude, the measure of super-viscous oil block production practice are mainly using modes, steam such as steam drive, steam soaks
Drive is that Liaohe Oilfield Heavy Crude exploits the important mode of production.Because steam drives process well long construction period, Jing Wengao, steam drives work
Skill well underground working is severe, Jing Wengao, to ensure between tubing string and sleeve pipe in annular space to alter leakage, it is necessary to which packer possesses on steam is not
Good sealing property, and steam injects for a long time, requires very high to seal heatproof, sealing property, using rational setting
Mode is particularly important, existing setting mode more use the single setting mode of hydraulic base sealed or heating power, with recovery percent by
Gradually deepen, the mode of production sealing effectiveness that conventional general steam drives and successively vapour drives is bad, and layer is not can solve
Between otherness it is big, the problems such as interlayer interference.
In view of this, the present inventor develops one according to the production design experiences for being engaged in this area and association area for many years
Plant compound action layering vapour and drive packer, to solve the problem of prior art is present.
The content of the invention
The purpose of the present invention is to be that providing a kind of compound action layering vapour drives packer, is carried out using compound action mode
Setting, good sealing effect, heat resisting and pressure resisting is strong, is easy to deblocking, overcomes the defect of prior art.
Therefore, the present invention proposes that a kind of compound action layering vapour drives packer, it includes：
One central tube, its two ends are connected with top connection and lower contact by external screw thread correspondence, and its side wall is provided with pressure transmission hole；
One exterior central tube, it is set on the central tube, its upper end can be separated by a cutting portion with it is described on connect
The lateral surface of head is connected, and the exterior central tube outer sheath is provided with regulation ring and cartridge, and the upper end of the regulation ring is spirally connected
Outside in the cutting portion, its lower end is in contact with the upper end of the cartridge；
One dilation, including one be set on expansion inner cylinder on the exterior central tube, the expansion inner cylinder and be arranged with
Overcoat is expanded, is formed between the expansion inner cylinder and expansion overcoat in an annular seal space, the annular seal space filled with the vaporization that can be heated
To promote the inflation fluid that the expansion overcoat is moved up, the upper end of the expansion overcoat is in contact with the lower end of the cartridge,
A locking stopping mechanism that can prevent the expansion inner cylinder from moving down is provided between the expansion inner cylinder and the exterior central tube；
One can promote the promotion part that the dilation is moved up in fluid injection, and it is set on the central tube, and phase
Adjacent to the downside of the dilation, seal and touch between the promotion part and the lateral surface of lower contact, between the two provided with one
The sealing ring cavity injected for liquid, the sealing ring cavity is connected with the pressure transmission hole.
Compound action layering vapour as described above drives packer, wherein, the locking stopping mechanism include a lock sleeve,
One closing piece and a retaining ring, the lock sleeve are set on the exterior central tube, and its lateral surface is provided with can be with the retaining ring
The zigzag retaining tooth locked together, the expansion inner cylinder is set on the lock sleeve, and the retaining ring is embedded in described
On the inwall for expanding inner cylinder lower end, the bottom of the closing piece is embedded at the groove formed on the wall of the exterior central tube side, outside it
End is embedded at the neck of the medial surface formation of the lock sleeve, wherein, a groove is additionally provided with the lateral surface of the central tube,
The groove is adjacent to the downside of the closing piece, and when the central tube is moved up, the closing piece can be placed in the groove.
Compound action layering vapour as described above drives packer, wherein, the lateral surface of the expansion inner cylinder lower end is convexly equipped with
One outer portion, the outer portion and the medial surface of the expansion overcoat are mutually closely connected, and the upper end of the expansion overcoat is radially inward
Extension is formed with an internal ring portion, and the front end face of the internal ring portion is in contact with the lower end of the cartridge, thereafter end face and institute
The upper end end face for stating expansion inner cylinder is mutually closely connected, wherein, separately it is convexly equipped with a stripper loop, the separation on the inwall of the expansion overcoat
The lateral surface of ring and the expansion inner cylinder is mutually closely connected, it is described expand the lateral surface of inner cylinder, it is the medial surface of the expansion overcoat, described
Outer portion and stripper loop, which are enclosed, is formed with annular seal space described in one.
Compound action layering vapour as described above drives packer, wherein, the cutting portion includes a shear sleeve and first
Shear pin, the shear sleeve from top to bottom includes the first ring portion and the second ring portion, and the internal diameter of first ring portion is more than institute
The internal diameter of the second ring portion is stated, it is set on the outside of the top connection, and passes through first shear pin and the top connection phase
Connection, the second ring portion sealing is set on the central tube, and the upper end of the regulation ring is then socketed in first ring portion
Outside, the upper end of the exterior central tube is connected by internal thread with the lateral surface of second ring portion.
Compound action layering vapour as described above drives packer, wherein, shape between the exterior central tube and the central tube
Cheng Youyi annular spaces, the annular space adjacent to the second ring portion of the shear sleeve on the downside of, be placed with a pressure ring and one in the annular space
Sealing ring, the pressure ring and sealing ring are closely connected to be set on the lateral surface of the central tube.
Compound action layering vapour as described above drives packer, wherein, the pushing part point includes from top to bottom covering successively
Support set and piston on the central tube are located at, the upper end of the support set is connected to the expansion inner cylinder and expands overcoat
Lower end, its lower end is socketed on the upper end of the piston, and the lateral surface of the piston and the central tube is mutually closely connected, outside its lower end
Side axially extend to be formed ring ear sealing be set on the lateral surface of the lower contact, the piston lower surface with it is described under
The upper surface of joint is adjacent, and the sealing ring cavity being connected with the pressure transmission hole is formed between the two.
Compound action layering vapour as described above drives packer, wherein, the lateral surface of the lower contact is separately socketed with one and cut
Ring is cut, the lower end of the ring ear is set on the shearing ring, and is connected by the second shear pin with the shearing ring.
Compound action layering vapour as described above drives packer, wherein, the lateral surface of the lower contact with the ring ear
The position being in contact and the medial surface of the piston are embedded with seal washer respectively.
Compound action layering vapour as described above drives packer, wherein, the compound action layering vapour drives the outer of packer
Footpath is 152mm, and its internal diameter is 62mm.
Compound action that the present invention is provided layering vapour drives packer, carried out using compound action mode setting, it is to avoid list
The shortcoming that one setting mode is present, good sealing effect, heat resisting and pressure resisting is strong, due to no anchor mechanism, and solution sealing mechanism safely may be used
Lean on, be easy to deblocking, good sealing effectiveness can be reached, possess preferable construction success rate.
The compound action layering vapour that the present invention is provided drives packer, it is adaptable to which hollow layering vapour drives technique and heavy crude heat extraction
The techniques such as steam drive, steam soak, it is adaptable to highest well temperature up to 350 DEG C steam drive, can pressure-resistant 18MPa, with extensive
Application prospect.
Brief description of the drawings
The following drawings is only intended to, in doing schematic illustration and explanation to the present invention, not delimit the scope of the invention.Wherein：
Fig. 1 drives the composition structural representation of packer for the compound action layering vapour of the present invention.
Main element label declaration：
The pressure transmission hole of 1 central tube 101
The top connection of 102 groove 11
The shear pin of 12 lower contact 13 first
The sealing ring of 14 pressure ring 15
The shear pin of 16 shearing ring 17 second
The ring portion of 2 shear sleeve 21 first
The exterior central tube of 22 second ring portion 3
The cartridge of 31 regulation ring 32
4 dilations 41 expand inner cylinder
411 outer portions 42 expand overcoat
The stripper loop of 421 internal ring portion 422
The neck of 51 lock sleeve 511
The retaining ring of 52 closing piece 53
6 promote the sealing of part 60 ring cavity
The piston of 61 support set 62
621 ring ear H annular seal spaces
Embodiment
The present invention proposes that a kind of compound action layering vapour drives packer, and it includes：One central tube, its two ends pass through external screw thread
Correspondence is connected with top connection and lower contact, and its side wall is provided with pressure transmission hole；One exterior central tube, it is set on the central tube,
Its upper end is connected by what a cutting portion can be separated with the lateral surface of the top connection, and the exterior central tube outer sheath is provided with tune
Ring and cartridge are saved, the upper end of the regulation ring is bolted in the outside in the cutting portion, its lower end and the cartridge
Upper end is in contact；One dilation, including one be set on expansion inner cylinder on the exterior central tube, the expansion inner cylinder and be arranged
There is expansion overcoat, an annular seal space is formed between the expansion inner cylinder and expansion overcoat, interior be filled with of the annular seal space can be by hot vapour
Change to promote the inflation fluid that the expansion overcoat is moved up, the upper end of the expansion overcoat connects with the lower end of the cartridge
Touch, a locking stopping mechanism that can prevent the expansion inner cylinder from moving down is provided between the expansion inner cylinder and the exterior central tube；
One can promote the promotion part that the dilation is moved up in fluid injection, and it is set on the central tube, and adjacent to described
The downside of dilation, seals between the promotion part and the lateral surface of lower contact and touches, noted for liquid provided with one between the two
The sealing ring cavity entered, the sealing ring cavity is connected with the pressure transmission hole.
The compound action layering vapour of the present invention drives packer, and setting, good sealing effect is carried out using compound action mode, resistance to
Warm resistance to pressure is strong, is easy to deblocking.
In order to which technical characteristic, purpose and effect to the present invention are more clearly understood from, below in conjunction with accompanying drawing and preferably
Embodiment, vapour is layered to compound action proposed by the present invention and drives the embodiment for constituting structural representation of packer, knot
Structure, feature and effect, are described in detail as after.In addition, by the explanation of embodiment, when can reach predetermined to the present invention
The technological means and effect that purpose is taken are able to more deep specific understanding, but institute's accompanying drawing is only to provide reference and explanation
With not for being any limitation as to the present invention.
Fig. 1 drives the composition structural representation of packer for the compound action layering vapour of the present invention.
As shown in figure 1, compound action layering vapour proposed by the present invention drives packer, it includes：
One central tube 1, its two ends are connected with top connection 11 and lower contact 12 by external screw thread correspondence, the central tube 1
Side wall is provided with pressure transmission hole 101；
One exterior central tube 3, is set on the central tube 1, its upper end can be separated by a cutting portion with it is described on connect
First 11 lateral surface is connected, and the outer sheath of exterior central tube 3 is provided with regulation ring 31 and cartridge 32, the regulation ring 31
Upper end is bolted in the outside in the cutting portion, and its lower end is in contact with the upper end of the cartridge 32, wherein, utilize regulation ring
31 with the relation that is spirally connected in cutting portion, its position can be adjusted, so that adjust that it contacts between cartridge 32 as needed is tight
Close degree, in addition, the cartridge 32 is preferred to use soft graphite and is made；
One dilation 4, including one be set on expansion inner cylinder 41 on the exterior central tube 3, the expansion inner cylinder 41
An expansion overcoat 42 is arranged with, is formed and is filled out in an annular seal space, the annular seal space between the expansion inner cylinder 41 and expansion overcoat 42
Filled with vaporization can be heated to promote the inflation fluid (not shown) that moves up of expansion overcoat 42, the expansion overcoat 42 it is upper
End is in contact with the lower end of the cartridge 32, can be prevented provided with one between the expansion inner cylinder 41 and the exterior central tube 3
The locking stopping mechanism that the expansion inner cylinder 41 is moved down；
One can promote the promotion part 6 that the dilation 4 is moved up in fluid injection, and it is set on the central tube 1, and
Adjacent to the downside of the dilation 4, seal and touch between the promotion part 6 and the lateral surface of lower contact 12, between the two
Provided with a sealing ring cavity 60 injected for liquid, the sealing ring cavity 60 is connected with the pressure transmission hole 101.When by described
The inner chamber of heart pipe 1 and pressure transmission hole 101 are into the sealing ring cavity 60 during fluid injection, and liquid stream can produce hydraulic pressure in sealing ring cavity 60
Power, and in the presence of hydraulic coupling, promoted by sealing the inwall of ring cavity 60 on the related dilation 4 in the promotion part 6
Move, to compress the cartridge 32, realize the sealing with down-hole casing and set operation.
Thus, when into the inner chamber of the central tube 1, fluid injection is suppressed, liquid stream enters described close from the pressure transmission hole 101
Seal ring intracavitary, under the promotion of hydraulic coupling, the promotion part is promoted on the expansion inner cylinder 41 and expansion overcoat 42 of dilation 4
Move, on the one hand, cartridge 32 described in the expansion upward pushing tow of overcoat 42 is compressed, and makes the cartridge 32 and down-hole casing
Inwall on set, on the other hand, by setting locking stopping mechanism, stopping after fluid injection suppresses, being avoided that the bulge
4 are divided to be moved down under the propulsive thrust effect of cartridge 32, so that setting reliable.
It is preferred that the locking stopping mechanism includes a lock sleeve 51, a closing piece 52 and a retaining ring 53, the locking
Set 51 is set on the exterior central tube 2, and its lateral surface is provided with the zigzag retaining tooth that can be locked together with the retaining ring 53
(not indicated in figure), the expansion inner cylinder 41 is set on the lock sleeve 51, and the retaining ring 53 is embedded in described swollen
, can be with its adjacent saw in downside after the retaining ring 53 is moved up with the expansion inner cylinder 41 on the inwall of the swollen lower end of inner cylinder 41
Tooth form retaining tooth phase clip is sealed, the back stretch that 32 pairs of the cartridge dilation 4 is produced is overcome, so as to keep away
Exempt from the expansion inner cylinder 41 to move down, cartridge 32 is in all the time upon compression and set state；
The bottom of the closing piece 52 is embedded at the groove formed on the side wall of exterior central tube 3, and its outer end is embedded in institute
State at the neck 511 of medial surface formation of lock sleeve 51 so that can be mutually between the lock sleeve 51 and the exterior central tube 23
Positioning, wherein, a groove 102 is additionally provided with the lateral surface of the central tube 1, the groove 102 is adjacent to the closing piece 53
Downside, when the central tube 1 is moved up, the closing piece 53 can be placed in the groove 102, and departs from the lock sleeve 51
Neck 511, makes to release between the lock sleeve 51 and the exterior central tube 3 and is mutually located state, with can be relative to the center
Pipe 3 is moved down.
Refer to Fig. 1, the lateral surface of the lower end of expansion inner cylinder 41 is convexly equipped with an outer portion 411, the outer portion 411 with
The medial surface of the expansion overcoat 42 is mutually closely connected, and the upper end of the expansion overcoat 42 is radially inwardly extending to be formed with an internal ring portion
421, the front end face of the internal ring portion 421 is in contact with the lower end of the cartridge 32, thereafter end face and the expansion inner cylinder
41 upper end end face is mutually closely connected, wherein, separately it is convexly equipped with a stripper loop 422, the stripper loop on the inwall of the expansion overcoat 42
422 is mutually closely connected with the lateral surface for expanding inner cylinder 41, the lateral surface of the expansion inner cylinder 41, the inner side of the expansion overcoat 42
Face, the outer portion 411 and stripper loop 422, which are enclosed, is formed with annular seal space H described in one, in other words, outside the expansion inner cylinder 41
Sideways, medial surface, the outer portion 411 and the internal ring portion 421 of the expansion overcoat 42, which are enclosed, is formed with a ring cavity, by setting
The stripper loop 422, makes part of the ring cavity between the stripper loop 422 and the outer portion 411 form the sealing
Chamber H.When in use, can more it be actually needed in the particular location of the expansion medial surface of overcoat 42 as the stripper loop 422
, will not be from expansion inner cylinder 41 as long as meeting inflation fluid when the expansion overcoat 42 is moved up depending on annular seal space H volume size
Flowed out at upper end.
As illustrated, the cutting portion includes a shear sleeve 2 and the first shear pin 13, the shear sleeve 2 is by up to
Under include the first ring portion 21 and the second ring portion 22, the internal diameter of first ring portion 21 is more than the internal diameter of second ring portion 22,
It is set in the outside of the top connection 11, and is connected by first shear pin 13 with the top connection 11, and described the
The sealing of two ring portions 22 is set on the central tube 1, and the upper end of the regulation ring 31 is then socketed in the outside of the first ring portion 21,
The upper end of the exterior central tube 3 is connected by internal thread with the lateral surface of second ring portion 22.As described in Figure, preferably cut
The lateral surface for cutting set 2 extends axially upward to form first ring portion 21, and its medial surface extends axially downward to form described
Second ring portion 22.
Further, an annular space is formed between the exterior central tube 3 and the central tube 1, the annular space is adjacent to institute
State and a pressure ring 14 and a sealing ring 15 are placed with the downside of the second ring portion 22 of shear sleeve 2, the annular space, the pressure ring 14 and close
Seal ring 15 is closely connected to be set on the lateral surface of the central tube 1.When fluid injection is suppressed, by setting the sealing ring 15, it can carry
Sealing between high central tube 1 and exterior central tube 2, it is to avoid liquid flows through gap leakage between the two into down-hole annular, and
The pressure ring 14 is then used to protect the sealing ring 15, prevents it from being damaged in assembling.
Fig. 1 is referred to, the promotion part 6 includes the support set 61 being from top to bottom sequentially sleeved on the central tube 1
And piston 62, the upper end of the support set 61 is connected to the lower end of the expansion inner cylinder 41 and expansion overcoat 42, the socket of its lower end
In the upper end of the piston 62, the lateral surface of the piston 62 and the central tube 1 is mutually closely connected, and the lateral surface of its lower end is vertically
Extension formed ring ear 621 sealing is set on the lateral surface of the lower contact 12, the lower surface of piston 62 with it is described under connect
First 12 upper surface is adjacent, and the sealing ring cavity 60 being connected with the pressure transmission hole, the piston 62 are formed between the two
The internal perisporium of lower end is formed with the sealing ring cavity 60 being connected with the pressure transmission hole 101.Wherein, in embodiment illustrated
In, in order to improve hydraulic drive effect, do not limited in the medial surface of the lower end of piston 62 sets chamfering, practical application further
In this, such as, also further ring groove etc. can be set directly on the medial surface of the lower end of piston 62, as long as can be preferably
Promote the piston 62 up when meeting fluid injection, therefore, its specific constructive form can be decided according to the actual requirements, and have herein
Body is not construed as limiting.
Wherein, the lateral surface of the lower contact 12 is separately socketed with a shearing ring 16, and the lower end of the ring ear 621 is set in institute
State on shearing ring 16, and be connected by the second shear pin 17 with the shearing ring 16, for the piston 62 initial
Positioning during state, when the piston 62 is acted on by hydraulic coupling, can cut second shear pin 17 and up.
To improve sealing property, the lateral surface of the lower contact 12 is at the position, Yi Jisuo being in contact with the ring ear 621
The medial surface for stating piston 62 is embedded with seal washer (not shown) respectively.Wherein, preferably compound action layering vapour drives envelope
It is 152mm (such as at the top connection, shearing ring) every the external diameter of device, its internal diameter is 62mm, such as in central tube, lower contact
Place.
Fig. 1 is referred to, the compound action layering vapour that the present invention is provided drives packer, is connected with other process pipe strings and tripping in
Behind underground, its specific work process is as follows：
First, by well head fluid injection into central tube 1, liquid stream enters in the sealing ring cavity 60 from the pressure transmission hole 101,
Under the promotion of hydraulic coupling, the piston 62 drives support set 61 up, and promotes expansion inner cylinder 41 and the expansion of dilation 4
Overcoat 42 is moved up, then is compressed by cartridge 32 described in the expansion upward pushing tow of overcoat 42, the cartridge 32 is existed
Underground completes tentatively to set, wherein, utilize the mutual clip of the lock sleeve 51 and retaining ring 52, it is to avoid the dilation
4 move down under the propulsive thrust effect of cartridge 32, so that setting reliable；
Then, steam injection operation is carried out to underground, temperature in wellbore can gradually rise, and now, the sealing is poured into advance
Inflation fluid in chamber H can be vaporized, swollen after vaporization because expansion inner cylinder 41 is locked on lock sleeve 51 by retaining ring 53
Swollen liquid can promote the expansion overcoat 42 to move up, and further compression seal packing element 32 realizes that compensation is setting.
After the completion of underground work, stop to underground steam injection, with the reduction of downhole temperature, after the inflation fluid heat release of vaporization
Liquid is re-converted into, so as to eliminate to the expansion thrust of overcoat 42 so that expansion overcoat 42 is fitted in the presence of cartridge 32
When moving down, the cartridge 32 is returned in underground initial preliminary sets state；Then, in being made by above putting on joint 11
Heart pipe 1 is up, and because cartridge 32 is tightly squeezed on the inwall of down-hole casing, each part is relatively motionless, and described first
Shear pin 13 is then cut；Central tube 1 is carried in continuation, when the groove 102 is moved to 52 bottom of closing piece, the lock
Block 52 departs from the neck 511 of the lock sleeve 51 and fallen into the groove 102, makes the lock sleeve 51 and the exterior central tube 3
Between release and be mutually located state, now, in the presence of the back stretch of cartridge 32, expansion overcoat 42, swollen can be promoted
Swollen inner cylinder 41 and lock sleeve 51 are overall to be moved down, and it is original state to reply, so as to release the state that sets with down-hole casing, most
Afterwards, the present invention is taken out from underground.
Schematical embodiment of the invention is the foregoing is only, the scope of the present invention is not limited to.It is any
Those skilled in the art, the equivalent variations made on the premise of the design of the present invention and principle is not departed from and modification, all should
Belong to the scope of protection of the invention.
Claims (10)
1. a kind of compound action layering vapour drives packer, it is characterised in that the compound action layering vapour, which drives packer, to be included：
One central tube, its two ends are connected with top connection and lower contact by external screw thread correspondence, and its side wall is provided with pressure transmission hole；
One exterior central tube, it is set on the central tube, its upper end can be separated by a cutting portion with the top connection
Lateral surface is connected, and the exterior central tube outer sheath is provided with regulation ring and cartridge, and the upper end of the regulation ring is bolted in institute
The outside in cutting portion is stated, its lower end is in contact with the upper end of the cartridge；
One dilation, including one be set on expansion inner cylinder on the exterior central tube, the expansion inner cylinder and be arranged with expansion
Overcoat, vaporization can be heated to push away by being formed in an annular seal space, the annular seal space to be filled between the expansion inner cylinder and expansion overcoat
The inflation fluid that the dynamic expansion overcoat is moved up, the upper end of the expansion overcoat is in contact with the lower end of the cartridge, described
A locking stopping mechanism that can prevent the expansion inner cylinder from moving down is provided between expansion inner cylinder and the exterior central tube；
One can promote the promotion part that the dilation is moved up in fluid injection, and it is set on the central tube, and adjacent to
The downside of the dilation, seals between the promotion part and the lateral surface of lower contact and touches, between the two provided with a feed flow
The sealing ring cavity of body injection, the sealing ring cavity is connected with the pressure transmission hole.
2. compound action layering vapour as claimed in claim 1 drives packer, it is characterised in that the locking stopping mechanism includes
There are a lock sleeve, a closing piece and a retaining ring, the lock sleeve is set on the exterior central tube, its lateral surface is provided with can be with
The zigzag retaining tooth that the retaining ring locks together, the expansion inner cylinder is set on the lock sleeve, and the retaining ring is embedded
On the inwall for being fixed on the expansion inner cylinder lower end, the bottom of the closing piece is embedded formed on the wall of the exterior central tube side logical
At groove, its outer end is embedded at the neck of the medial surface formation of the lock sleeve, wherein, separately set on the lateral surface of the central tube
There is a groove, the groove is adjacent to the downside of the closing piece, and when the central tube is moved up, the closing piece can be placed in described
In groove.
3. compound action layering vapour as claimed in claim 2 drives packer, it is characterised in that outside the expansion inner cylinder lower end
Side is convexly equipped with an outer portion, and the outer portion and the medial surface of the expansion overcoat are mutually closely connected, the upper end of the expansion overcoat
Radially inwardly extending to be formed with an internal ring portion, the front end face of the internal ring portion is in contact with the lower end of the cartridge, its
The upper end end face of rear end face and the expansion inner cylinder is mutually closely connected, wherein, separately it is convexly equipped with a separation on the inwall of the expansion overcoat
The lateral surface of ring, the stripper loop and the expansion inner cylinder is mutually closely connected, described to expand the lateral surface of inner cylinder, the expansion overcoat
Medial surface, the outer portion and stripper loop, which are enclosed, is formed with annular seal space described in one.
4. compound action layering vapour as claimed in claim 1 drives packer, it is characterised in that outside the expansion inner cylinder lower end
Side is convexly equipped with an outer portion, and the outer portion and the medial surface of the expansion overcoat are mutually closely connected, the upper end of the expansion overcoat
Radially inwardly extending to be formed with an internal ring portion, the front end face of the internal ring portion is in contact with the lower end of the cartridge, its
The upper end end face of rear end face and the expansion inner cylinder is mutually closely connected, wherein, separately it is convexly equipped with a separation on the inwall of the expansion overcoat
The lateral surface of ring, the stripper loop and the expansion inner cylinder is mutually closely connected, described to expand the lateral surface of inner cylinder, the expansion overcoat
Medial surface, the outer portion and stripper loop, which are enclosed, is formed with annular seal space described in one.
5. the compound action layering vapour as described in any one of Claims 1-4 drives packer, it is characterised in that the cutting portion
Include a shear sleeve and the first shear pin, the shear sleeve from top to bottom includes the first ring portion and the second ring portion, described
The internal diameter of first ring portion is more than the internal diameter of second ring portion, and it is set on the outside of the top connection, and is cut by described first
Cut pin with the top connection to be connected, the second ring portion sealing is set on the central tube, the upper end of the regulation ring
Then it is socketed on the outside of first ring portion, the upper end of the exterior central tube passes through internal thread and the lateral surface phase of second ring portion
Connection.
6. compound action as claimed in claim 5 layering vapour drives packer, it is characterised in that the exterior central tube with it is described in
Be formed with an annular space between heart pipe, the annular space adjacent to the second ring portion of the shear sleeve on the downside of, be placed with the annular space
One pressure ring and a sealing ring, the pressure ring and sealing ring are closely connected to be set on the lateral surface of the central tube.
7. the compound action layering vapour as described in claim 1,2,3 or 6 drives packer, it is characterised in that the promotion part
Including the support set and piston being from top to bottom sequentially sleeved on the central tube, the upper end of the support set is connected to described swollen
Swollen inner cylinder and the lower end for expanding overcoat, its lower end are socketed on the upper end of the piston, the outside of the piston and the central tube
Face is mutually closely connected, and the lateral surface of its lower end axially extends the ring ear to be formed sealing and is set on the lateral surface of the lower contact, institute
State that piston lower surface is adjacent with the upper surface of the lower contact, be connected with the pressure transmission hole described close is formed between the two
Seal ring chamber.
8. compound action layering vapour as claimed in claim 7 drives packer, it is characterised in that the lateral surface of the lower contact is another
A shearing ring is socketed with, the lower end of the ring ear is set on the shearing ring, and passes through the second shear pin and the shearing
Ring is connected.
9. compound action layering vapour as claimed in claim 8 drives packer, it is characterised in that the lateral surface of the lower contact exists
The position being in contact with the ring ear and the medial surface of the piston are embedded with seal washer respectively.
10. the compound action layering vapour as described in claim 1 or 9 drives packer, it is characterised in that the compound action layering
The external diameter that vapour drives packer is 152mm, and its internal diameter is 62mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510631845.5A CN105178906B (en) | 2015-09-29 | 2015-09-29 | Compound action layering vapour drives packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510631845.5A CN105178906B (en) | 2015-09-29 | 2015-09-29 | Compound action layering vapour drives packer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105178906A CN105178906A (en) | 2015-12-23 |
| CN105178906B true CN105178906B (en) | 2017-10-17 |
Family
ID=54901262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201510631845.5A Active CN105178906B (en) | 2015-09-29 | 2015-09-29 | Compound action layering vapour drives packer |
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| CN106437537B (en) * | 2016-09-06 | 2019-04-26 | 中国石油化工股份有限公司 | A kind of pumping pipe string with hot-washing wax remover function |
| CN110952967B (en) * | 2018-09-27 | 2021-09-28 | 中国石油天然气股份有限公司 | Thickened oil recovery method |
| CN110043217B (en) * | 2019-05-14 | 2021-03-05 | 淮安市井神钻采机具有限公司 | Multi-seal corrosion-resistant finding and plugging integrated oil extraction packer |
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| CN2292899Y (en) * | 1997-05-30 | 1998-09-30 | 辽河石油勘探局曙光采油厂 | Thermal recovery packer |
| CN102337856A (en) * | 2010-07-16 | 2012-02-01 | 张学锋 | Novel thermally-expanded extrusion packer for viscous oil steam-injection well |
| CN202176307U (en) * | 2011-08-02 | 2012-03-28 | 盘锦鑫富远石油机械厂 | Thermal recovery packer |
| US9016390B2 (en) * | 2011-10-12 | 2015-04-28 | Halliburton Energy Services, Inc. | Apparatus and method for providing wellbore isolation |
| CN103806861B (en) * | 2013-11-04 | 2016-06-08 | 中国石油天然气股份有限公司 | Cold-hot double-acting packer |
| CN205025420U (en) * | 2015-09-29 | 2016-02-10 | 中国石油天然气股份有限公司 | Combination effect layering vapour drives packer |
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