CN202451126U - High-temperature injection-production process pipe column for J-shaped well - Google Patents
High-temperature injection-production process pipe column for J-shaped well Download PDFInfo
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- CN202451126U CN202451126U CN2012200815225U CN201220081522U CN202451126U CN 202451126 U CN202451126 U CN 202451126U CN 2012200815225 U CN2012200815225 U CN 2012200815225U CN 201220081522 U CN201220081522 U CN 201220081522U CN 202451126 U CN202451126 U CN 202451126U
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Abstract
The utility model discloses a high-temperature injection-production process pipe column for a J-shaped well. The high-temperature injection-production process pipe column comprises a well port device, a sleeve pipe, a continuous oil pipe, a screen pipe and an opened oil pipe, wherein the opened oil pipe is arranged on the middle position inside the screen pipe in a penetrating way and extends to the second end of the screen pipe to form a lower steam injection annulus with the screen pipe; an included angle is formed between the screen pipe and a vertical direction; both side positions of the wall of the screen pipe, which face to a just upper direction and a just lower direction, are respectively provided with an upper screen port and a lower screen port; the wall of the opened oil pipe inside the sleeve pipe is positioned at one side of the opened oil pipe, which faces to the just lower direction, and provided with an opening, the opening and the screen port are correspondingly arranged, and both side edges of the opening are hermetically connected with both side edges of the lower screen port to form an oil inlet which faces to the just lower direction; and the opened oil pipe and the lower steam injection annulus are mutually arranged in an isolating way. Thus, according to the utility model, steam channeling caused by the backflow of high pressure steams can be effectively prevented, and therefore, the oil production efficiency is increased.
Description
Technical field
The utility model is related to a kind of heavy oil wells production practice tubing string, the gas injection used more particularly, to a kind of J-type well of thick oil filling steam heating exploitation and the J-type well high temperature integrated process pipe string that is integrated and can effectively preventing channeling from occurring that recovers the oil.
Background technology
SAGD (SAGD) technology has been obtained for being widely applied in Canadian oil-sand mining area, can be divided into dual horizontal well combination S AGD, straight well and horizontal well combination S AGD and J-type well SAGD according to its well type.For dual horizontal well combination S AGD and straight well and horizontal well combination S AGD, because J-type well SAGD only needs to bung down, steam injection and production are completed in a bite well, therefore drilling cost and running cost are substantially reduced, simultaneously, dual horizontal well combination S AGD and straight well are applied to the oil reservoir that core intersection is more than 15m with horizontal well combination S AGD, do not applied in thin layer reservoir, and J-type well SAGD can be used in more than core intersection 8m heavy crude reservoir, therefore its applicable oil reservoir scope is more extensive, is the potentiality technology of a heavy crude reservoir effective exploitation.But so far, during external J-type well SAGD pilot tests, J-type well uses the tubular column structure under tripping in coiled tubing, coiled tubing to screen casing front end in the screen casing for connecting and being upwarped to top of oil horizon under sleeve pipe, screen casing；Oil pipe steam injection is used in SAGD production processes, annular space recovers the oil, channeling of the steam into annular space is injected come control oil pipe by the liquid-vaqor interface in annular space.But the J-type well SAGD pilot test open source informations of Canadian oil-sand mining area show, for super-heavy oil deposit, because oil reservoir resistance is larger, it is empty that the steam for injecting oil reservoir from oil pipe easily alters winding in annular space under producing pressure differential effect, form steam short circuit backflow, therefore J-type well SAGD pilot test development effectiveness is undesirable at present, and yield is relatively low, deficiency in economic performance.
In order to further improve the production efficiency of heavy oil wells, it would be highly desirable to a kind of tubing string for heavy oil wells steam injection heating exploitation, effectively solve the above problems.
Utility model content
The technical problem that the utility model is solved is to provide a kind of J-type well high temperature note and adopts integral process tubing string, effectively prevents high steam backflow from causing channeling, improves oil recovery efficiency.
Technical solution of the present utility model is：
A kind of J-type well high temperature note adopts integral process tubing string, wherein, the process pipe string includes：
Annular space gas filling device is provided with above wellhead assembly, including a thermal production well mouth, the thermal production well mouth；
Sleeve pipe, its top is tightly connected with the wellhead assembly；
Coiled tubing, its top is tightly connected with the wellhead assembly, and is arranged in described sleeve pipe bosom position, and upper steam injection annular space is formed between the coiled tubing and described sleeve pipe；High-temperature oil pump is provided with the coiled tubing；
Screen casing, its first end is connected with described sleeve pipe bottom end seal, and its second end is fixedly connected with a bottom and blocked up；
Be open oil pipe, and its first end is connected with the bottom end seal of the coiled tubing, and the opening oil pipe is arranged in the screen casing bosom position, and extends to the second end of the screen casing, and lower steam injection annular space is formed between the opening oil pipe and the screen casing；The annular air injection device connects setting with the upper steam injection annular space and bet compression ring sky；
There is an angle, the screen casing tube wall offers upper sieve mouth and lower sieve mouth respectively towards just upper and towards just lower both sides positions between the screen casing and vertical direction；Opening is offered towards the side tube wall under just in the opening oil pipe in the screen casing, the opening is correspondingly arranged with the lower sieve mouth, and is tightly connected between the both side edges of the opening and the both side edges of lower sieve mouthful, forms the oil inlet towards underface；It is mutually isolated between the opening oil pipe and the lower steam injection annular space to set.
Above-mentioned J-type well high temperature note adopts integral process tubing string, wherein, the first end of the screen casing is set less than its second end, and the screen casing first end to the top rade at the second end is 30 degree.
Above-mentioned J-type well high temperature note adopts integral process tubing string, wherein, it is tightly connected between the opening oil pipe and the coiled tubing via a tubing coupling, and the coiled tubing and described sleeve pipe equal length.
Above-mentioned J-type well high temperature note adopts integral process tubing string, wherein, it is tightly connected between the lateral margin of the opening of the opening oil pipe and the lateral margin of the lower sieve mouth via annular space sealed wall, and tube wall of the opening oil pipe at the tubing coupling is continuous whole tubular structure.
Above-mentioned J-type well high temperature note adopts integral process tubing string, wherein, the sieve mouth face width of the upper sieve mouth is equal to the radius in the opening oil pipe section.
Above-mentioned J-type well high temperature note adopts integral process tubing string, wherein, the sieve mouth face width of the A/F of the opening oil pipe and the lower sieve mouth is equal to the radius in the opening oil pipe section.
Above-mentioned J-type well high temperature note adopts integral process tubing string, wherein, the screen casing is cutting seam sieve tube.
Above-mentioned J-type well high temperature note adopts integral process tubing string, wherein, the screen casing first end is connected via a sealed suspension device with described sleeve pipe bottom end seal.
Above-mentioned J-type well high temperature note adopts integral process tubing string, wherein, provided with coiled tubing sealing and suspension arrangement above the Hot dishes well head of the wellhead assembly, the high-temperature oil pump is connected with an oil-well pump polish rod, and the oil-well pump polish rod is arranged in the coiled tubing and extends to the wellhead assembly.
Above-mentioned J-type well high temperature note adopts integral process tubing string, wherein, described sleeve pipe a diameter of 9 ", the coiled tubing it is a diameter of
The opening tubing diameter be 4 ", a diameter of 7 " of the screen casing and length is 450m.
Learnt by described above, the utility model can reach following effect compared with prior art, really：
The utility model J-type well high temperature note adopts integral process tubing string, using opening oil pipe and cutting seam sieve tube inwall seamless seal technique, in SAGD production processes, the steam of annular space injection passes through the sieve mouthful injection oil reservoir at the top of screen casing, the glutinous crude oil of heating drop enters opening oil pipe from the sieve mouthful of screen casing bottom in oil reservoir, avoid during conventional J-type well SAGD oil pipe steam injection, screen casing annular space adopt liquid, steam returns the serious consequence altered and causes steam short circuit backflow directed along annular space, can be prevented effectively from channeling.Meanwhile, screen casing top rade is increased to 30 degree, draining height and liquid-vaqor interface height is improved, adds draining power, well yield can be improved.
Brief description of the drawings
Fig. 1 is that J-type well high temperature of the present utility model notes the structural representation for adopting integral process tubing string preferred embodiment；
Fig. 2 is that J-type well high temperature of the present utility model notes the casing section cross-sectional view for adopting integral process tubing string；
Fig. 3 is that J-type well high temperature of the present utility model notes the schematic diagram positioned at screen casing and cannula connection cross section for adopting integral process tubing string preferred embodiment；
Fig. 4 is the schematic diagram that J-type well high temperature of the present utility model notes the sieve tube segment cross section for adopting integral process tubing string preferred embodiment.
Main element label declaration：
1：Sleeve pipe 2：Coiled tubing 3：Screen casing
4：Be open oil pipe 5：Upper sieve mouth 6：Lower sieve mouth
7：Annular space sealed wall 8：Sealed suspension device 9：Oil-well pump polish rod
10：Oil reservoir
Embodiment
A kind of J-type well high temperature note of the present utility model adopts integral process tubing string, including：Wellhead assembly, sleeve pipe, coiled tubing, screen casing and opening oil pipe；Wellhead assembly includes being provided with annular space gas filling device above a thermal production well mouth, the thermal production well mouth；Cannula tip is tightly connected with the wellhead assembly；Coiled tubing top is tightly connected with the wellhead assembly, and is arranged in described sleeve pipe bosom position, and upper steam injection annular space is formed between the coiled tubing and described sleeve pipe；High-temperature oil pump is provided with the coiled tubing；Screen casing first end is connected with described sleeve pipe bottom end seal, and its second end is fixedly connected with a bottom and blocked up；Opening oil pipe first end is connected with the bottom end seal of the coiled tubing, and the opening oil pipe is arranged in the screen casing bosom position, and extends to the second end of the screen casing, and lower steam injection annular space is formed between the opening oil pipe and the screen casing；The annular air injection device connects setting with the upper steam injection annular space and bet compression ring sky；There is an angle, the screen casing tube wall offers upper sieve mouth and lower sieve mouth respectively towards just upper and towards just lower both sides positions between the screen casing and vertical direction；Opening is offered towards the side tube wall under just in the opening oil pipe in the screen casing, the opening is correspondingly arranged with the lower sieve mouth, and is tightly connected between the both side edges of the opening and the both side edges of lower sieve mouthful, forms the oil inlet towards underface；It is mutually isolated between the opening oil pipe and the lower steam injection annular space to set.Whereby, the utility model prevents the possibility that channeling phenomenon occurs by way of being recovered the oil under upper gas injection, improves oil recovery efficiency.
In order to be more clearly understood to technical characteristic of the present utility model, purpose and effect, now control illustrates embodiment of the present utility model.
As shown in Figures 1 and 2, it is that J-type well high temperature note of the present utility model adopts the structural representation of integral process tubing string preferred embodiment and the cross-sectional view of casing section.Wherein, preferably, J-type well high temperature of the present utility model note is adopted integral process tubing string and included：Wellhead assembly, sleeve pipe 1, coiled tubing 2, screen casing 3 and opening oil pipe 4.The wellhead assembly is arranged at pithead position, and it includes can inject the annular space gas filling device of high steam into sleeve pipe 1；The top of described sleeve pipe 1 is tightly connected with the wellhead assembly；The top of the coiled tubing 2 is tightly connected with the wellhead assembly, and it is arranged in the bosom position of described sleeve pipe 1, whereby, upper steam injection annular space is formed between the coiled tubing 2 and described sleeve pipe 1, the annular space gas filling device can inject required high steam into steam injection annular space on this.High-temperature oil pump is provided with the coiled tubing 2, to extract the oil entered by lower section；In addition, the first end of screen casing 3 of the present utility model is connected with the bottom end seal of described sleeve pipe 1, its second end is fixedly connected with a bottom and blocked up；And the first end of the opening oil pipe 4 is connected with the bottom end seal of the coiled tubing 2, the opening oil pipe 4 is arranged in the bosom position of screen casing 3, and extends to the second end of the screen casing 3, and lower steam injection annular space is formed between the opening oil pipe 4 and the screen casing 3；The annular air injection device connects setting with the upper steam injection annular space and bet compression ring sky, whereby, the high steam entered via the upper steam injection annular space can enter in lower steam injection annular space, and be sprayed via screen casing 3 into oil reservoir 10, supercharging steam injection is carried out to oil reservoir 10, oil recovery efficiency is improved.
J-type well high temperature note of the present utility model as described above is adopted in integral process tubing string, has an angle between the screen casing 3 and vertical direction, is generally that the second end of screen casing 3 is upturned setting, further to prevent the generation of channeling phenomenon.Further, the tube wall of screen casing 3 offers upper sieve mouth 5 towards just upper and towards just lower both sides positions and lower sieves mouth 6 respectively.And the oil pipe 4 that is open be set to offer opening towards the side tube wall under just in the opening oil pipe 4 in the screen casing 3, that is, the opening of the opening oil pipe 4 is only opened in inside the screen casing 3, but it is not necessarily the opening oil pipe 4 inside screen casing 3 and offers the opening, generally, for ensure the to be open inside of oil pipe 4 and the seal isolation of lower steam injection annular space, the first end of opening oil pipe 4 typically maintains the complete circular tube structure in one end, so that opening oil pipe 4 and coiled tubing 2 junction can be formed with it is upper, the sealing structure for gas annular isolation of betting.The opening is correspondingly arranged with the lower sieve mouth 6, and is tightly connected between the both side edges of the opening and the both side edges of lower sieve mouthful 6, forms the oil inlet towards underface；That is, mutually isolated between the opening oil pipe 4 and the lower steam injection annular space set, seal pack state is kept, high steam will not enter opening oil pipe 4 by the inside of screen casing 3.
As illustrated, the J-type well high temperature note of the utility model preferred embodiment adopts integral process tubing string, it is open between oil pipe 4 and the coiled tubing 2 and is tightly connected via a tubing coupling, and the coiled tubing 2 and the equal length of described sleeve pipe 1；Whereby, make to connect more convenient between opening oil pipe 4 and coiled tubing 2, screen casing 3 and sleeve pipe 1, the utilization rate for the oil pipe 4 that is open is higher, so as to improve oil recovery efficiency.
It refer to shown in Fig. 3 and Fig. 4, be the schematic diagram for the 3 sections of cross sections of schematic diagram and screen casing for being located at screen casing 3 and the junction cross section of sleeve pipe 1 that J-type well high temperature note of the present utility model adopts integral process tubing string preferred embodiment.As shown in the figure, J-type well high temperature note of the present utility model adopts integral process tubing string, preferably, it is tightly connected between the lateral margin of the opening of the opening oil pipe 4 and the lateral margin of the lower sieve mouth 6 via annular space sealed wall 7, and shown annular space sealed wall 7 has separated shown lower steam injection annular space, so as to connect opening oil pipe 4 and outside oil reservoir 10, form outside an oil inlet, the oil inlet as lower sieve mouth 6.In addition, tube wall of the opening oil pipe 4 at the tubing coupling is continuous whole tubular structure, it refer to shown in Fig. 3, via complete annular tube wall coiled tubing 2 can be made to be tightly connected with opening oil pipe 4 in the junction, and via the setting of annular space sealed wall 7, the opening of opening oil pipe 4 is connected and is opened with the packing of lower steam injection annular space with lower sieve mouth 6 sealing.
Referring again to shown in Fig. 4, J-type well high temperature note of the present utility model is adopted in integral process tubing string, preferred embodiment, and the sieve mouth face width of the upper sieve mouth 5 is equal to the radius in opening oil pipe 4 section.
In addition, J-type well high temperature note of the present utility model is adopted in the preferred embodiment of integral process tubing string, the A/F of the opening oil pipe 4 and the sieve mouth face width of the lower sieve mouth 6 can also be set to be equal to the radius in opening oil pipe 4 section.
The setting of the size dimension of the upper sieve mouthful 5 of screen casing 3 as described above and/or lower sieve mouth 6, after can preferably controlling high steam via upper sieve mouth 5 ejection, will not enter in opening oil pipe 4 via lower sieve mouth 6, form channeling again.The setting of above-mentioned oil pipe sieve mouth size is only preferably set-up mode, dimensions indicated above is not limited, the width that upper sieve mouth sieve mouth face, lower sieve mouth sieve mouth face and opening oil pipe 4 are open is able to be configured in different sizes, preferably prevents the high steam for sieving the ejection of mouth 5 from entering opening oil pipe 4 from lower sieve mouth 6 as long as it disclosure satisfy that.
Preferably, J-type well high temperature note of the present utility model adopts integral process tubing string, its screen casing 3 is cutting seam sieve tube.
As shown in Figure 1, in order that J-type well high temperature note of the present utility model adopts integral process tubing string in actual motion operation process, improve oil producing operation efficiency, and effectively prevent the generation of channeling phenomenon, preferably, the utility model is set using the first end of screen casing 3 less than its second end, and the first end of screen casing 3 to the top rade at the second end is 30 degree, the upward pressurising of steam that upper sieve mouth 5 sprays is made with this, make the oil in oil reservoir 10 be squeezed downwards to push away, improve the efficiency that the oil in oil reservoir 10 enters opening oil pipe 4；Further, screen casing 3 is set to be upturned setting, opening oil pipe 4 is namely set to be upturned, now, the oily gravitional force in opening oil pipe 4 can be improved, promote to enter the oil in opening oil pipe 4 with higher speed to enter in coiled tubing 2, and then by pumping to well head, effectively increase the oil recovery efficiency of the J-type well.Certainly, the size of the updip angle of screen casing 3 is not limited thereto, generally, it can be configured according to the concrete condition of oil reservoir 10, for example, the longitudinal depth of oil reservoir 10 is larger, can the corner of screen casing 3 be set larger, it is further to improve potential energy oily in opening oil pipe 4, so as to improve oil recovery efficiency；If it is less to run into the longitudinal depth of oil reservoir 10, the inclination angle size of screen casing 3 can be adjusted according to thickness size, the actual conditions of the thickness of oil reservoir 10 is complied with, the maximization of oil recovery efficiency is realized with most suitable inclination angle.
As shown in figure 1, J-type well high temperature note of the present utility model adopts integral process tubing string, preferably, the first end of the screen casing 3 is connected via a sealed suspension device 8 with the bottom end seal of described sleeve pipe 1.
In a preferred embodiment, J-type well high temperature of the present utility model note adopts integral process tubing string, and the wellhead assembly is also sealed and suspension arrangement including coiled tubing 2, the connection coiled tubing 2 at well head, and reaches good sealing and suspension status；And the high-temperature oil pump is then connected with an oil-well pump polish rod 9, the oil-well pump polish rod 9 is arranged in the coiled tubing 2 and extends to the wellhead assembly, via the reciprocating action of oil well pump, the oil entered in opening oil pipe 4 can be extracted into coiled tubing 2 via high-temperature oil pump, then outwards be exported via wellhead assembly.
Referring again to shown in Fig. 1 to Fig. 4, this is used in new preferably one embodiment, J-type well high temperature note of the present utility model adopts integral process tubing string, including the sealing of coiled tubing 2 is blocked up with suspension arrangement, annular space steam injection wellhead assembly, thermal production well mouth, sleeve pipe 1, coiled tubing 2, oil-well pump polish rod 9, high-temperature oil pump, sealed suspension device 8, tubing coupling, screen casing 3, opening oil pipe 4, bottom；Sleeve pipe 1 is fixed with J-type well, screen casing 3, front half section of the screen casing 3 in J-type well be connected with by sealed suspension device 8 in the tail end of sleeve pipe 1；Bottom is fixed with the end of screen casing 3 to block up.Wherein：Thermal production well mouth is fixed with ground, the sealing of coiled tubing 2 and suspension arrangement and annular space steam injection wellhead assembly are fixed with thermal production well mouth top；The upper end of coiled tubing 2 is connected to the bottom of thermal production well mouth；Coiled tubing 2 is arranged in sleeve pipe 1, and coiled tubing 2 extends to sealed suspension device 8；High-temperature oil pump is arranged in coiled tubing 2, and high-temperature oil pump upper end is connected with polished rod；Polished rod reaches ground through the sealing of coiled tubing 2 and suspension arrangement；High-temperature oil pump does not pass through sealed suspension device 8；Coiled tubing 2 is connected using tubing coupling with opening oil pipe 4；Opening oil pipe 4 is not open at tubing coupling, and opening oil pipe 4 is arranged in screen casing 3, distal end to the front end of J-type well for the oil pipe 4 that is open；The top rade of screen casing 3 is 30 degree.
Wherein, in the embodiment, preferably, coiled tubing 2 is arranged in the center of sleeve pipe 1；Oil pipe 4 be open in the center of screen casing 3；Opening oil pipe 4 is underface opening, and A/F is equal to the radius of opening oil pipe 4；Screen casing 3 is cutting seam sieve tube.
The utility model J-type well high temperature note as implied above adopts the preferred embodiment of integral process tubing string, in addition to the surface slot of screen casing 3, annular space sealed wall 7, the underface slot of screen casing 3.Screen casing 3 take directly over slot and underface slot, the width in surface slot and the slot face of underface slot is equal to the opening radius of oil pipe 4；Oil-pipe external wall and the seamless welding of annular space sealed wall 7 immediately below opening oil pipe 4；Annular space sealed wall 7 and the inwall seamless welding of screen casing 3, annular space sealed wall 7 opening oil pipe 4 open outer side and screen casing 3 underface slot outer rim so that fluid can not scurry into opening oil pipe 4 in annular space.
More specifically, the J-type well high temperature note in above-described embodiment adopts integral process tubing string, and it is as follows that one preferably implements size：
9 " sleeve pipe 1,
Coiled tubing 2,7 " screen casing 3,4 " opening oil pipe 4, wherein, the length 450m of screen casing 3, the top rade of screen casing 3 is 30 degree.
A kind of J-type well high temperature note of the present utility model in summary adopts integral process tubing string, and it utilizes annular space sealed wall 7, and the opening oil pipe 4 in screen casing 3 and the inwall of screen casing 3 are realized into seamless seal；In SAGD production processes, using the annular space steam injection of screen casing 3, steam injection mouthful is the top slot of screen casing 3, produced using opening oil pipe 4, fluid is flowed into from the bottom slot of screen casing 3, enter oil pipe along at the lower ending opening of oil pipe, in the oil pipe steam injection process that effectively prevent conventional J-type well SAGD, short circuit backflow of the injection steam from annular space.Meanwhile, the top rade of screen casing 3 is increased to 30 degree, draining height and liquid-vaqor interface height is improved, increases draining power, improve well yield.
The schematical embodiment of the utility model is the foregoing is only, scope of the present utility model is not limited to.Any those skilled in the art, made equivalent variations and modification, all should belong to the scope of the utility model protection on the premise of design of the present utility model and principle is not departed from.
Claims (10)
1. a kind of J-type well high temperature note adopts integral process tubing string, it is characterised in that the process pipe string includes：
Annular space gas filling device is provided with above wellhead assembly, including a thermal production well mouth, the thermal production well mouth；
Sleeve pipe, its top is tightly connected with the wellhead assembly；
Coiled tubing, its top is tightly connected with the wellhead assembly, and is arranged in described sleeve pipe bosom position, and upper steam injection annular space is formed between the coiled tubing and described sleeve pipe；High-temperature oil pump is provided with the coiled tubing；
Screen casing, its first end is connected with described sleeve pipe bottom end seal, and its second end is fixedly connected with a bottom and blocked up；
Be open oil pipe, and its first end is connected with the bottom end seal of the coiled tubing, and the opening oil pipe is arranged in the screen casing bosom position, and extends to the second end of the screen casing, and lower steam injection annular space is formed between the opening oil pipe and the screen casing；The annular air injection device connects setting with the upper steam injection annular space and bet compression ring sky；
There is an angle, the screen casing tube wall offers upper sieve mouth and lower sieve mouth respectively towards just upper and towards just lower both sides positions between the screen casing and vertical direction；Opening is offered towards the side tube wall under just in the opening oil pipe in the screen casing, the opening is correspondingly arranged with the lower sieve mouth, and is tightly connected between the both side edges of the opening and the both side edges of lower sieve mouthful, forms the oil inlet towards underface；It is mutually isolated between the opening oil pipe and the lower steam injection annular space to set.
2. J-type well high temperature note as claimed in claim 1 adopts integral process tubing string, it is characterised in that the first end of the screen casing is set less than its second end, and the screen casing first end to the top rade at the second end is 30 degree.
3. J-type well high temperature note as claimed in claim 1 adopts integral process tubing string, it is characterised in that be tightly connected between the opening oil pipe and the coiled tubing via a tubing coupling, and the coiled tubing and described sleeve pipe equal length.
4. J-type well high temperature note as claimed in claim 3 adopts integral process tubing string, it is characterized in that, it is tightly connected between the lateral margin of the opening of the opening oil pipe and the lateral margin of the lower sieve mouth via annular space sealed wall, and tube wall of the opening oil pipe at the tubing coupling is continuous whole tubular structure.
5. J-type well high temperature note as claimed in claim 1 adopts integral process tubing string, it is characterised in that the sieve mouth face width of the upper sieve mouth is equal to the radius in the opening oil pipe section.
6. J-type well high temperature note as claimed in claim 1 adopts integral process tubing string, it is characterised in that the sieve mouth face width of the A/F of the opening oil pipe and the lower sieve mouth is equal to the radius in the opening oil pipe section.
7. J-type well high temperature note as claimed in claim 1 adopts integral process tubing string, it is characterised in that the screen casing is cutting seam sieve tube.
8. J-type well high temperature note as claimed in claim 1 adopts integral process tubing string, it is characterised in that the screen casing first end is connected via a sealed suspension device with described sleeve pipe bottom end seal.
9. J-type well high temperature note as claimed in claim 1 adopts integral process tubing string, it is characterized in that, provided with coiled tubing sealing and suspension arrangement above the thermal production well mouth of the wellhead assembly, the high-temperature oil pump is connected with an oil-well pump polish rod, and the oil-well pump polish rod is arranged in the coiled tubing and extends to the wellhead assembly.
10. J-type well high temperature as claimed in claim 1 note adopts integral process tubing string, it is characterised in that described sleeve pipe a diameter of 9 ", the coiled tubing it is a diameter of
The opening tubing diameter be 4 ", a diameter of 7 " of the screen casing and length is 450m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200815225U CN202451126U (en) | 2012-03-06 | 2012-03-06 | High-temperature injection-production process pipe column for J-shaped well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200815225U CN202451126U (en) | 2012-03-06 | 2012-03-06 | High-temperature injection-production process pipe column for J-shaped well |
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| Publication Number | Publication Date |
|---|---|
| CN202451126U true CN202451126U (en) | 2012-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200815225U Expired - Fee Related CN202451126U (en) | 2012-03-06 | 2012-03-06 | High-temperature injection-production process pipe column for J-shaped well |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104453818A (en) * | 2014-11-06 | 2015-03-25 | 中国石油天然气股份有限公司 | Combustion stimulation well injection and extraction integrated tubular column and ignition method of combustion stimulation well injection and extraction integrated tube |
| CN112761570A (en) * | 2019-11-04 | 2021-05-07 | 中国石油化工股份有限公司 | Natural gas upwarping horizontal well completion method |
-
2012
- 2012-03-06 CN CN2012200815225U patent/CN202451126U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104453818A (en) * | 2014-11-06 | 2015-03-25 | 中国石油天然气股份有限公司 | Combustion stimulation well injection and extraction integrated tubular column and ignition method of combustion stimulation well injection and extraction integrated tube |
| CN112761570A (en) * | 2019-11-04 | 2021-05-07 | 中国石油化工股份有限公司 | Natural gas upwarping horizontal well completion method |
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