CN203685053U - Horizontal well oil production process equipment with functions of steam injection, oil production and temperature and pressure real-time monitoring and with three tubings in same wellbore - Google Patents
Horizontal well oil production process equipment with functions of steam injection, oil production and temperature and pressure real-time monitoring and with three tubings in same wellbore Download PDFInfo
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- CN203685053U CN203685053U CN201320772545.5U CN201320772545U CN203685053U CN 203685053 U CN203685053 U CN 203685053U CN 201320772545 U CN201320772545 U CN 201320772545U CN 203685053 U CN203685053 U CN 203685053U
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Abstract
The utility model provides horizontal well oil production process equipment with functions of steam injection, oil production and temperature and pressure real-time monitoring and with three tubings in the same wellbore. The horizontal well oil production process equipment comprises a wellhead valve system; a steam injection tubing string, a mechanical lifting tubing string and an integral joint tubing are respectively arranged in an intermediate casing; the wellhead valve system comprises an integral joint tubing hanger, an oil pumping tubing outlet and a steam inlet; the integral joint tubing and a coiled tubing are hung on the integral joint tubing hanger; the mechanical lifting tubing string is connected to the oil pumping tubing outlet; the steam injection tubing string is connected to the steam inlet. Through the adoption of the horizontal well oil production process equipment, steam injection, oil production and monitoring can be conducted in the same wellbore simultaneously.
Description
Technical field
The utility model relates to horizontal well field of petroleum exploitation, be the process for petroleum recovery equipment of realizing steam injection, oil recovery, temperature, pressure Real-Time Monitoring in same pit shaft concretely, a kind of horizontal well steam injection, oil recovery and temperature, pressure Real-Time Monitoring three pipes are with pit shaft oil production technology equipment.
Background technology
The in-place oil in some oil fields, because viscosity is large or formation temperature is low, make crude oil flow difficulties in stratum, for this part oilfield exploitation, carried out a large amount of development tests and on-site development experiment both at home and abroad, practice shows, take the technical barriers such as straight well when exploitation exists development degree and recovery ratio is low, generally adopt horizontal wells, to increase the contact area of development well and oil reservoir, improve the development degree of oil reservoir, improve individual well daily production capacity and ultimate recovery.Along with technological progress, for this part oil field, development new technologies develop gradually, mainly comprise SAGD (Stream Assisted Gravity Drainage SAGD) SAGD, fireflood technology etc., these technology are generally using horizontal well as producing well, horizontal production well effect is directly connected to development effectiveness, the at present situation lower than well depth liquid column hydrostatic pressure for deep-well or strata pressure, when adopting two-tube (steam injection string+flow string) technology to recover the oil to horizontal well is general, realize the effect (patent: ZL201020610471.1) of preheating water horizontal well.Horizontal well dual tubing oil recovery technology realizes on-the-spot technology application substantially at present, mainly by be lowered to steam injection string and oil pipe in protective casing, in oil pipe, be lowered to oil well pump, carry out steam injection, oil recovery simultaneously, to realize rationally employing and preheating horizontal well horizontal segment, but dual tubing oil recovery technology, in the time developing with horizontal well preheating, exists the problem that cannot employ to horizontal well horizontal segment situation and preheat mode Real-Time Monitoring, adopt parameter thereby cannot optimize in time note.
In sum, in prior art, there is following problem: when horizontal well steam injection, because deep-well or strata pressure cause the production fluid cannot self-loopa and cannot be to horizontal segment temperature, pressure Real-Time Monitoring lower than well depth liquid column hydrostatic pressure.
Utility model content
The utility model provides a kind of horizontal well steam injection, oil recovery and temperature, pressure Real-Time Monitoring three pipes with pit shaft oil production technology equipment, object is to solve when steam injection, because deep-well or strata pressure cause the production fluid cannot self-loopa but also cannot be to the problem of horizontal segment temperature, pressure Real-Time Monitoring lower than well depth liquid column hydrostatic pressure.
For this reason, the utility model proposes a kind of horizontal well steam injection, oil recovery and temperature, pressure Real-Time Monitoring three pipes with pit shaft oil production technology equipment, described three pipes comprise with pit shaft oil production technology equipment:
Head valve system, is arranged on the well head place of the pit shaft of horizontal well link technique sleeve pipe;
Steam injection tubing string, mechanical lift tubing string and integral joint tubing, be separately positioned in protective casing, and described steam injection tubing string, described mechanical lift tubing string and described integral joint tubing do not comprise mutually;
Described integral joint tubing comprises: the vertical section of interconnective integral joint tubing and the horizontal segment of integral joint tubing;
Described coiled tubing, is arranged in described integral joint tubing, is provided with capillary tube and organizes thermocouple more in described coiled tubing, and described coiled tubing comprises: the vertical section of interconnective coiled tubing and the horizontal segment of coiled tubing;
Described steam injection tubing string comprises: the horizontal segment of the vertical section of interconnective steam injection tubing string and steam injection tubing string;
Described mechanical lift tubing string is arranged in the vertical section of described protective casing;
Described head valve system comprises: integral joint tubing hanger, oil pick-up tube outlet and steam inlet, described integral joint tubing and coiled tubing are suspended on described integral joint tubing hanger, described mechanical lift tubing string connects described oil pick-up tube outlet, and described steam injection tubing string connects described steam inlet.
Further, described three pipes also comprise with pit shaft oil production technology equipment: oil well pump, is connected to the lower bottom of described mechanical lift tubing string.
Further, described three pipes also comprise with pit shaft oil production technology equipment: the screen pipe hanger of horizontal well, is arranged in described protective casing.
Further, described steam injection tubing string maximum outside diameter, mechanical lift tubing string and integral joint tubing maximum outside diameter sum are than extremely when young 10mm of the internal diameter of the vertical section of described protective casing.
Further, the internal diameter of described integral joint tubing should at least be greater than 40mm, and the internal diameter of described coiled tubing should at least be less than 38mm.
Further, the internal diameter >=220mm of the vertical component of described protective casing.
Further, the maximum outside diameter >=70mm of described mechanical lift tubing string, the internal diameter >=62mm of described mechanical lift tubing string.
Further, the internal diameter >=40mm of described steam injection tubing string.
Further, the maximum outside diameter sum of the external diameter of the box cupling of described steam injection tubing string and integral joint tubing than the internal diameter of the horizontal segment of described protective casing to 10mm when young.
Further, the maximum outside diameter of described oil well pump body and oil well pump box cupling all≤92mm.
The utility model has configured steam injection tubing string, mechanical lift tubing string and integral joint tubing this three tubing strings or pipeline simultaneously in down-hole, complete respectively the function of steam injection, lifting and preheat mode Real-Time Monitoring, when steam injection or later, just can employ situation and preheat mode Real-Time Monitoring to horizontal well horizontal segment without changing tubing string, and just can complete lifting without changing tubing string, realize in the pit shaft of a horizontal well, completed the task of steam injection, oil recovery and temperature, pressure Real-Time Monitoring.
The utility model has been realized with the steam injection in pit shaft, oil recovery, monitoring, steam injection, oil recovery, monitoring can be carried out in same pit shaft simultaneously, and prior art is only for handling up exploitation steam injection and the monitoring carried out, need to after steam injection finishes, proposes steam injection and just can carry out oil producing operation with monitoring tubing string, after being lowered to flow string.
With respect to prior art, the utility model has reduced the technique of changing tubing string, has simplified technique, has improved operating efficiency, has guaranteed the continuity of producing, and has avoided changing the impact of tubing string on lifting work, has guaranteed the quality of lifting.
And then, the utility model arranges integral joint tubing hanger in head valve system, make these three tubing strings of steam injection tubing string, mechanical lift tubing string and integral joint tubing or pipeline can be connected to well head simultaneously, thereby provide support for the operation of these three tubing strings of steam injection tubing string, mechanical lift tubing string and integral joint tubing or pipeline.
Accompanying drawing explanation
Fig. 1 is that horizontal well steam injection, oil recovery and temperature, pressure Real-Time Monitoring three pipes of the utility model embodiment are with the structural representation of the main apparent direction of pit shaft oil production technology equipment;
Fig. 2 is that horizontal well steam injection, oil recovery and temperature, pressure Real-Time Monitoring three pipes of embodiment of the present utility model are with the sectional structure schematic diagram of the main apparent direction of the head valve system of pit shaft oil production technology equipment;
Fig. 3 is that horizontal well steam injection, oil recovery and temperature, pressure Real-Time Monitoring three pipes of the vertical section that is arranged in protective casing of embodiment of the present utility model are with the horizontal direction cross-sectional view of pit shaft oil production technology equipment;
Fig. 4 is that horizontal well steam injection, oil recovery and temperature, pressure Real-Time Monitoring three pipes of the horizontal segment that is arranged in protective casing of embodiment of the present utility model are with the vertical direction cross-sectional view of pit shaft oil production technology equipment;
Fig. 5 is that horizontal well steam injection, oil recovery and temperature, pressure Real-Time Monitoring three pipes of embodiment of the present utility model are with the sectional structure schematic diagram (side-looking direction) of the integral joint tubing hanger of the head valve system of pit shaft oil production technology equipment.
Drawing reference numeral explanation:
101 protective casing 102 steam injection tubing string 103 mechanical lift tubing strings, 104 oil well pumps, 105 ends sieve horizontal segment 109 integral joint tubing 110 coiled tubing 202 steam inlets of the vertical section 108 steam injection tubing strings of the screen pipe hanger 107 steam injection tubing strings of 106 horizontal wells, 203 casing annulus accesss, 204 polished rods, 205 polished rod sealers, 206 rubber gates, 207 Remote Hydraulic blowout preventers, the heat insulation inner tube of thick flange seal main body 304 oil-well tubing collar 305 instlated tubular 306 insulation layer 307 of 208 integral joint tubing hanger 209
The specific embodiment
Understand for technical characterictic of the present utility model, object and effect being had more clearly, now contrast accompanying drawing explanation the utility model.
As shown in Figure 1, the utility model proposes a kind of horizontal well steam injection, oil recovery and temperature, pressure Real-Time Monitoring three pipes with pit shaft oil production technology equipment, described three pipes comprise with pit shaft oil production technology equipment: head valve system, steam injection tubing string 102, mechanical lift tubing string 103 and integral joint tubing 109.
Head valve system, as Fig. 2, is arranged on well head place or the ground of the pit shaft of horizontal well, and link technique sleeve pipe 101;
Steam injection tubing string 102, mechanical lift tubing string 103 and integral joint tubing 109, be separately positioned in protective casing 101, as Fig. 3 and Fig. 4, steam injection tubing string 102, mechanical lift tubing string 103 and integral joint tubing 109 do not comprise mutually, the relation that steam injection tubing string 102, mechanical lift tubing string 103 and integral joint tubing 109 these threes are not socketed in other words, these three tubing strings or ducted any be all arranged on outside other two;
Described integral joint tubing 109 comprises: the vertical section of interconnective integral joint tubing and the horizontal segment of integral joint tubing; The vertical section of described integral joint tubing is arranged in the vertical section of described protective casing, the horizontal segment of described integral joint tubing is arranged in the horizontal segment of described protective casing, the end of described integral joint tubing post is positioned at the venthole front portion of described steam injection tubing string, for the protection of temperature and pressure monitoring coiled tubing;
As Fig. 3 and Fig. 4, described coiled tubing 110, be arranged in described integral joint tubing 109, in described coiled tubing, be provided with capillary tube and organize thermocouple more, described coiled tubing comprises: the vertical section of interconnective coiled tubing and the horizontal segment of coiled tubing, the vertical section of described coiled tubing is arranged in the vertical section of described integral joint tubing, the vertical section horizontal segment of described coiled tubing is arranged in the horizontal segment of described integral joint tubing, the end of described coiled tubing and integral joint tubing end are substantially suitable, for filling capillary pressure measuring and thermocouple temperature measurement; Described capillary tube test pressure should be less than 15MPa, and described many group thermocouple assay temperature should be less than 450 ℃, and adopt heat-resisting protective material filling between described coiled tubing;
Described steam injection tubing string 102 comprises: the vertical section 107 of interconnective steam injection tubing string and the horizontal segment 108 of steam injection tubing string, the vertical section of described steam injection tubing string is arranged in the vertical section of described protective casing, the horizontal segment of described steam injection tubing string is arranged in the horizontal segment of described protective casing, and the end of described steam injection tubing string is realized crude oil development and oil reservoir preheating to horizontal well pit shaft steam injection; As shown in Figure 3 and Figure 4, steam injection string comprises from outside to inside: heat insulation outer tube 305, insulation layer 306 and heat insulation inner tube 307, and insulation layer 306 is folded between heat insulation outer tube 305 and heat insulation inner tube 307;
Described mechanical lift tubing string 103 is arranged in the vertical section of described protective casing, for the liquid in lifting pit shaft (crude oil); As Fig. 4, mechanical lift tubing string 103 comprises the oil pick-up tube coupling together by oil-well tubing collar 304;
As Fig. 5, described head valve system comprises: thick flange seal main body 209, integral joint tubing hanger 208, oil pick-up tube outlet 201 and steam inlet 202(are as Fig. 2), steam inlet 202 is arranged in thick flange seal main body 209.
Described integral joint tubing 109 and coiled tubing 110 are suspended on described integral joint tubing hanger 208, and described mechanical lift tubing string 103 connects described oil pick-up tube outlet 201, and described steam injection tubing string 102 connects described steam inlet 202.As Fig. 5, integral joint tubing hanger 208 is arranged in thick flange seal main body 209, in integral joint tubing hanger 208, has receiving system, and the signal receiving in coiled tubing 110 is converted to temperature and pressure data.In addition, as Fig. 2, described head valve system also comprises: casing annulus access 203, polished rod 204, polished rod sealer 205, rubber gate 206, Remote Hydraulic blowout preventer 207.
The utility model is except be provided with in pit shaft three tubing strings or pipeline simultaneously, and at well head place, the utility model and existing well jaws equipment have obvious difference.One of them main distinction is: the utility model is at well head place, be provided with in head valve system the parts that connect or hang three tubing strings or pipeline simultaneously, mechanical lift tubing string connects described oil pick-up tube outlet 201, steam injection tubing string 102 connects described steam inlet 202, and integral joint tubing 109 and coiled tubing 110 are suspended on described integral joint tubing hanger 208.Also can say, steam injection tubing string and mechanical lift tubing string are all directly suspended in thick flange seal main body 209, for the original boll-weevil hanger of well head, this point is identical with prior art, but in addition, the utility model has also hung integral joint tubing hanger 208 in thick flange seal main body 209, for fixing and being connected coiled tubing 110.
In order to guarantee can to connect or hang three tubing strings or pipeline in the confined space of head valve system simultaneously, the utility model in thick flange seal main body 209 except offering steam inlet 202, also for the setting of integral joint tubing hanger 208 has reserved space, make the two or do not affect, non-interference, integral joint tubing hanger 208 is arranged on the side direction of steam inlet 202, and from Fig. 2, integral joint tubing hanger 208 is arranged on the rear of steam inlet 202.
The utility model has been realized with the steam injection in pit shaft, oil recovery, monitoring, steam injection, oil recovery, monitoring can be carried out in same pit shaft simultaneously, and prior art is only for handling up exploitation steam injection and the monitoring carried out, need to after steam injection finishes, proposes steam injection and just can carry out oil producing operation with monitoring tubing string, after being lowered to flow string.
Further, as Fig. 1, described three pipes also comprise with pit shaft oil production technology equipment: oil well pump 104, is connected to the lower bottom of described mechanical lift tubing string 103, for extracting the crude oil adulterating in the steam condensate (SC) of horizontal well and steam condensate (SC).The piston of described oil well pump adopts sucker rod on-off connector to be connected with sucker rod.Described oil well pump depth of setting L meets:
L≥H-100(P-1)
Wherein, H is oil reservoir vertical depth, and P is strata pressure.
Further, as Fig. 1, described three pipes also comprise with pit shaft oil production technology equipment: the screen pipe hanger 106 of horizontal well, be arranged in described protective casing, in the screen casing that hangs horizontal well horizontal segment, end sieve 105 is positioned at the end of screen casing, for the horizontal segment steam injection to described protective casing.
Further, as Fig. 4, described steam injection tubing string maximum outside diameter, mechanical lift tubing string and integral joint tubing maximum outside diameter sum are than extremely when young 10mm of the internal diameter of the vertical section of described protective casing, to guarantee that three tubing strings or pipeline can be arranged in protective casing.Further, the internal diameter >=220mm of the vertical component of described protective casing, to guarantee that three tubing strings or pipeline can be arranged in protective casing.
Further, the internal diameter of described integral joint tubing should at least be greater than 40mm, and the internal diameter of described coiled tubing should at least be less than 38mm, so that integral joint tubing holds coiled tubing.
Further, internal diameter >=the 220mm of the vertical component of described protective casing, maximum outside diameter >=the 70mm of described mechanical lift tubing string, like this, can reduce the outside dimension of mechanical lift tubing string, increase the space of other two tubing strings or pipeline, further, the maximum outside diameter of described oil well pump body and oil well pump box cupling all≤92mm, to obtain rational allocation of space.Internal diameter >=the 62mm of described mechanical lift tubing string, to guarantee lifting efficiency.Further, the internal diameter >=40mm of described steam injection tubing string, to guarantee steam injection quality.
Further, the maximum outside diameter sum of the external diameter of the box cupling of described steam injection tubing string and integral joint tubing than the internal diameter of the horizontal segment of described protective casing to 10mm when young, so that steam injection tubing string can be arranged in the horizontal segment of protective casing.
As preferably selecting, the internal diameter >=40mm of described steam injection tubing string 102, external diameter≤89mm; The external diameter of the box cupling of described steam injection tubing string 102 than the internal diameter of the horizontal segment of described protective casing to 10mm when young, preferably, the external diameter >=108mm of the box cupling of described steam injection tubing string, described box cupling adopts two-way chamfering to connect.
Preferably, the external diameter >=70mm of described mechanical lift tubing string 103, internal diameter >=62mm; The maximum outside diameter of described steam injection tubing string 102 is with the maximum outside diameter sum of mechanical lift pipe 103 posts than extremely when young 10mm of the internal diameter of the vertical component of described protective casing 101, and the box cupling of mechanical lift tubing string 103 is approximately 89mm.
In the utility model, ground lifting equipment, adopts conventional pumping unit, and its oil pumper manufacturing parameter should meet the discharge capacity demand that is equal to steam injection amount, if injection rate is 100t/d, and the optional following combination of its oil extractor operating parameter:
Table 1(oil extractor operating parameter)
The explanation the utility model of giving one example below:
The oil well in a certain oil field, is SAGD horizontal production well, adopts this technique to carry out three pipe heavy oil production and the pre-hot work of horizontal well, steam injection 119 days, tired steam injection 13690t, tired production fluid 12560, tired produce oil 1810t, steam injection discharge capacity 4.5t/h, wellhead temperature is up to 220 ℃, and under Horizontal Well, temperature and pressure monitoring system shows, 230 ℃ of down-hole horizontal section temperature when steam injection, stop noting rear down-hole horizontal section temperature and reach 120 ℃, connected well section reaches 80%, and pressure control is produced.Steam injection, lifting, gathering and transportation technology system works are normal.
Be lowered to this technique at first well group (upper and lower two mouthfuls of water horizontal wells) in March, 2011 simultaneously and carry out cyclic preheat, its creation data is in Table 2(first well group creation data):
| Parameter | Design | Actual |
| Day steam injection (t) | 72 | 70 |
| Tired steam injection (t) | 14400 | 13690 |
| Tired production fluid (t) | 12960 | 12560 |
| Accumulation production-injection ratio | 0.9 | 0.91 |
| Production normal phase production-injection ratio | 0.9 | 0.92 |
| Bottom hole temperature (BHT) (℃) | ＞200 | 230 |
First well group result of the test shows, injection-production technology of the present utility model can be realized horizontal segment is evenly employed and can be met the requirement of horizontal well SAGD pipeline start up by preheating, obtain the gas oil ratio of considerable economy, observe from down-hole temperature and pressure monitoring system, can find that horizontal segment temperature is significantly improved.
The foregoing is only the schematic specific embodiment of the utility model, not in order to limit scope of the present utility model.For each ingredient of the present utility model can mutually combine under the condition of not conflicting; any those skilled in the art; do not depart from equivalent variations and the modification under the prerequisite of design of the present utility model and principle, done, all should belong to the scope of the utility model protection.
Claims (10)
1. horizontal well steam injection, oil recovery and temperature, pressure Real-Time Monitoring three pipes, with a pit shaft oil production technology equipment, is characterized in that, described three pipes comprise with pit shaft oil production technology equipment:
Head valve system, is arranged on the well head place of the pit shaft of horizontal well link technique sleeve pipe;
Steam injection tubing string, mechanical lift tubing string and integral joint tubing, be separately positioned in protective casing, and described steam injection tubing string, described mechanical lift tubing string and described integral joint tubing do not comprise mutually;
Described integral joint tubing comprises: the vertical section of interconnective integral joint tubing and the horizontal segment of integral joint tubing;
Coiled tubing, is arranged in described integral joint tubing, is provided with capillary tube and organizes thermocouple more in described coiled tubing, and described coiled tubing comprises: the vertical section of interconnective coiled tubing and the horizontal segment of coiled tubing;
Described steam injection tubing string comprises: the horizontal segment of the vertical section of interconnective steam injection tubing string and steam injection tubing string;
Described mechanical lift tubing string is arranged in the vertical section of described protective casing;
Described head valve system comprises: integral joint tubing hanger, oil pick-up tube outlet and steam inlet, described integral joint tubing and coiled tubing are suspended on described integral joint tubing hanger, described mechanical lift tubing string connects described oil pick-up tube outlet, and described steam injection tubing string connects described steam inlet.
2. three pipes as claimed in claim 1, with pit shaft oil production technology equipment, is characterized in that, described three pipes also comprise with pit shaft oil production technology equipment: oil well pump, is connected to the lower bottom of described mechanical lift tubing string.
3. three pipes as claimed in claim 1, with pit shaft oil production technology equipment, is characterized in that, described three pipes also comprise with pit shaft oil production technology equipment: the screen pipe hanger of horizontal well, is arranged in described protective casing.
4. three pipes as claimed in claim 1, with pit shaft oil production technology equipment, is characterized in that, described steam injection tubing string maximum outside diameter, mechanical lift tubing string and integral joint tubing maximum outside diameter sum are than extremely when young 10mm of the internal diameter of the vertical section of described protective casing.
5. three pipes as claimed in claim 1, with pit shaft oil production technology equipment, is characterized in that, the internal diameter of described integral joint tubing should at least be greater than 40mm, and the internal diameter of described coiled tubing should at least be less than 38mm.
6. three pipes as claimed in claim 1, with pit shaft oil production technology equipment, is characterized in that, the internal diameter >=220mm of the vertical component of described protective casing.
7. three pipes as claimed in claim 1, with pit shaft oil production technology equipment, is characterized in that, the maximum outside diameter >=70mm of described mechanical lift tubing string, the internal diameter >=62mm of described mechanical lift tubing string.
8. three pipes as claimed in claim 1, with pit shaft oil production technology equipment, is characterized in that, the internal diameter >=40mm of described steam injection tubing string.
9. three pipes as claimed in claim 1, with pit shaft oil production technology equipment, is characterized in that, the maximum outside diameter sum of the external diameter of the box cupling of described steam injection tubing string and integral joint tubing than the internal diameter of the horizontal segment of described protective casing to 10mm when young.
10. three pipes as claimed in claim 2, with pit shaft oil production technology equipment, is characterized in that, the maximum outside diameter of described oil well pump body and oil well pump box cupling all≤92mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320772545.5U CN203685053U (en) | 2013-11-28 | 2013-11-28 | Horizontal well oil production process equipment with functions of steam injection, oil production and temperature and pressure real-time monitoring and with three tubings in same wellbore |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320772545.5U CN203685053U (en) | 2013-11-28 | 2013-11-28 | Horizontal well oil production process equipment with functions of steam injection, oil production and temperature and pressure real-time monitoring and with three tubings in same wellbore |
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| Publication Number | Publication Date |
|---|---|
| CN203685053U true CN203685053U (en) | 2014-07-02 |
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| CN201320772545.5U Expired - Fee Related CN203685053U (en) | 2013-11-28 | 2013-11-28 | Horizontal well oil production process equipment with functions of steam injection, oil production and temperature and pressure real-time monitoring and with three tubings in same wellbore |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615199A (en) * | 2013-11-28 | 2014-03-05 | 中国石油天然气股份有限公司 | Oil extraction processing device for achieving steam injection, oil extraction and temperature-pressure real-time monitoring in shaft of horizontal well with three tubes |
| CN104265256A (en) * | 2014-07-31 | 2015-01-07 | 中国石油天然气股份有限公司 | In-situ combustion electric ignition device |
| CN105986794A (en) * | 2015-03-05 | 2016-10-05 | 中国石油天然气股份有限公司 | Oil extraction method for steam assisted gravity drainage (SAGD) dual horizontal well and tubular column equipment of oil extraction method |
-
2013
- 2013-11-28 CN CN201320772545.5U patent/CN203685053U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615199A (en) * | 2013-11-28 | 2014-03-05 | 中国石油天然气股份有限公司 | Oil extraction processing device for achieving steam injection, oil extraction and temperature-pressure real-time monitoring in shaft of horizontal well with three tubes |
| CN104265256A (en) * | 2014-07-31 | 2015-01-07 | 中国石油天然气股份有限公司 | In-situ combustion electric ignition device |
| CN105986794A (en) * | 2015-03-05 | 2016-10-05 | 中国石油天然气股份有限公司 | Oil extraction method for steam assisted gravity drainage (SAGD) dual horizontal well and tubular column equipment of oil extraction method |
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Granted publication date: 20140702 Termination date: 20211128 |