CN205532523U - Layered oil production pipe column with pressure control switch - Google Patents
Layered oil production pipe column with pressure control switch Download PDFInfo
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- CN205532523U CN205532523U CN201620230897.1U CN201620230897U CN205532523U CN 205532523 U CN205532523 U CN 205532523U CN 201620230897 U CN201620230897 U CN 201620230897U CN 205532523 U CN205532523 U CN 205532523U
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 61
- 210000002445 nipple Anatomy 0.000 claims abstract description 42
- 239000003129 oil well Substances 0.000 claims abstract description 22
- 238000011084 recovery Methods 0.000 abstract description 7
- 239000010410 layer Substances 0.000 description 17
- 238000001556 precipitation Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000009096 changqing Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a layering oil production pipe with voltage-controlled switch belongs to oil field oil recovery technical field. The layered oil production pipe column is arranged in an oil well casing and comprises an oil pipe hanger, a first oil pipe short section, a first oil pipe, a tubular pump barrel, a second oil pipe, a sieve pipe, a third oil pipe, a first plug, a hydraulic release, a second oil pipe short section, a first packer, a fourth oil pipe, a first pressure-controlled switch, a fifth oil pipe, a second packer, a sixth oil pipe and a second pressure-controlled switch which are sequentially arranged from the top to the bottom of an oil well headThe third packer is connected with the third oil pipe nipple, the third packer is connected with the third pressure-controlled switch, and the fourth oil pipe nipple is connected with the second plug. By arranging the voltage-controlled switch, the oil layer can be changed randomly and repeatedly under the condition of not moving the pipe column, the random switching of the production layer in the well is realized, the purpose of water-reducing and oil-increasing is achieved, the once success rate of the layered oil production of the 4-port oil well on site is 100 percent, the average daily increase of the single-well yield is more than 1.3 tons, and the average daily water-reducing is 5.1m3The above.
Description
Technical Field
The utility model relates to an oil field oil recovery technical field, in particular to layering oil production pipe column with voltage-controlled switch.
Background
The research time of the layered oil production process technology of the oil field in China is relatively late, the field application research is only carried out in nearly 10 years, the layered oil production process technology is mainly applied to Daqing oil fields, Changqing oil fields and the like, and representative layered oil production process technologies comprise a separate production pump, a constant pressure production allocator, a proportional pump and two-layer layered oil production process technology and the like.
In the nineties of the last century, the method of adopting a hollow oil well pump and a common tubular pump up and down a packer solves the problem of separate production of two oil layers with different pressure grades. In recent years, a plurality of scholars at home and abroad research and test the separate production string suitable for different well conditions, and the research finds that the separate production string has better application effect in the field of separate production.
In realizing the utility model discloses an in-process, the designer discovers that prior art has following problem at least: the toothbrush-shaped oil reservoir has the characteristics of more oil layers and large interlayer difference, and layered oil production pipes are required to be adopted for layer-changing exploitation for improving the yield. However, the existing layered oil production pipe column cannot realize random conversion of production layers in the well, so that the toothbrush-shaped oil reservoir exploitation efficiency is low, and a large amount of manpower and material resources are needed.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, an embodiment of the utility model provides a layering oil production pipe that has voltage-controlled switch that can realize the random switching of well inner production zone.
Specifically, the method comprises the following technical scheme:
the embodiment of the utility model provides a layering oil production pipe column with voltage-controlled switch, layering oil production pipe column sets up in the oil well casing, layering oil production pipe column includes: the hydraulic control system comprises an oil pipe hanger, a first oil pipe nipple, a first oil pipe, a pipe pump barrel, a second oil pipe, a sieve pipe, a third oil pipe, a first plug, a hydraulic release, a second oil pipe nipple, a first packer, a fourth oil pipe, a first pressure control switch, a fifth oil pipe, a second packer, a sixth oil pipe, a second pressure control switch, a seventh oil pipe, a third packer, a third oil pipe nipple, a third pressure control switch, a fourth oil pipe nipple and a second plug; the upper end of the oil pipe hanger is positioned at an oil well mouth, and the lower end of the oil pipe hanger is connected with the upper end of the first oil pipe short section; the lower end of the first oil pipe short section is connected with the upper end of the first oil pipe; the lower end of the first oil pipe is connected with the upper end of the pump barrel of the tubular pump; the lower end of the pump cylinder of the tubular pump is connected with the upper end of the second oil pipe; the lower end of the second oil pipe is connected with the upper end of the sieve pipe; the lower end of the sieve tube is connected with the upper end of the third oil tube; the lower end of the third oil pipe is connected with the first plug; a gap is arranged between the first plug and the upper end of the hydraulic release; the lower end of the hydraulic release is connected with the upper end of the second oil pipe short section; the lower end of the second oil pipe short section is connected with the upper end of the first packer; the lower end of the first packer is connected with the upper end of the fourth oil pipe; the lower end of the fourth oil pipe is connected with the upper end of the first pressure-controlled switch; the lower end of the first pressure-controlled switch is connected with the upper end of the fifth oil pipe; the lower end of the fifth oil pipe is connected with the upper end of the second packer; the lower end of the second packer is connected with the upper end of the sixth oil pipe; the lower end of the sixth oil pipe is connected with the upper end of the second pressure-controlled switch; the lower end of the second pressure-controlled switch is connected with the upper end of the seventh oil pipe; the lower end of the seventh oil pipe is connected with the upper end of the third packer; the lower end of the third packer is connected with the upper end of the third oil pipe nipple; the lower end of the third oil pipe short section is connected with the upper end of the third pressure-controlled switch; the lower end of the third pressure-controlled switch is connected with the upper end of the fourth oil pipe short section; the lower end of the fourth oil pipe nipple is connected with the second plug.
Specifically, the first oil pipe short section, the second oil pipe short section, the third oil pipe short section and the fourth oil pipe short section are phi 73mm oil pipe short sections; the first oil pipe, the second oil pipe, the third oil pipe, the fourth oil pipe, the fifth oil pipe, the sixth oil pipe and the seventh oil pipe are phi 73mm thickened oil pipes; the first plug and the second plug are phi 73mm plugs; the sieve tube is a phi 73mm sieve tube; the first plug and the second plug are phi 73mm plugs; the hydraulic release is a phi 112mm hydraulic release; the second packer and the third packer are Y341-114 packers.
Specifically, the oil pipe hanger, the first oil pipe nipple, the first oil pipe, the tubular pump cylinder, the second oil pipe, the sieve pipe, the third oil pipe and the first plug are connected through screw threads; the hydraulic release, the second oil pipe nipple, the first packer, the fourth oil pipe, the first pressure-controlled switch, the fifth oil pipe, the second packer, the sixth oil pipe, the second pressure-controlled switch, the seventh oil pipe, the third packer, the third oil pipe nipple, the third pressure-controlled switch, the fourth oil pipe nipple and the second plug are connected through screw threads.
The embodiment of the utility model provides a technical scheme's beneficial effect is:
The embodiment of the utility model provides a be provided with voltage-controlled switch ware among the layering oil production pipe column, can control voltage-controlled switch ware's switch on ground to under the condition of motionless tubular column, realize that the oil reservoir changes the layer wantonly repeatedly, the needs that the interior production zone of well was random when having satisfied layering oil recovery changed are particularly useful for the exploitation of "toothbrush form" oil reservoir, reach precipitation and increase the purpose of oil, improve exploitation efficiency simultaneously, reduce staff intensity of labour. Adopt the utility model to implementThe layered oil production pipe column provided by the embodiment carries out layered oil production operation on 4 oil wells on site, the once success rate of the layered oil production is 100 percent, the average daily output of a single well of the oil well is increased by more than 1.3 tons, and the average daily water drop is 5.1m3The above.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a layered oil production string with a voltage-controlled switch according to an embodiment of the present invention.
The reference numerals denote:
1-tubing hanger, 2-first tubing nipple, 3-first tubing, 4-tubing pump barrel, 5-second tubing, 6-screen, 7-third tubing, 8-first plug, 9-hydraulic release, 10-second tubing nipple, 11-first packer, 12-fourth tubing, 13-first pressure control switch, 14-fifth tubing, 15-second packer, 16-sixth tubing, 17-second pressure control switch, 18-seventh tubing, 19-third packer, 20-third tubing nipple, 21-third pressure control switch, 22-fourth tubing nipple, 23-second plug, 24-well casing.
Detailed Description
In order to make the technical solutions and advantages of the present invention clearer, the following will describe the embodiments of the present invention in further detail with reference to the accompanying drawings. Unless defined otherwise, all technical terms used in the embodiments of the present invention have the same meaning as commonly understood by one of ordinary skill in the art.
The embodiment of the utility model provides a layering oil production pipe column with voltage-controlled switch, see fig. 1, layering oil production pipe column sets up in oil well casing 24, and its characterized in that, layering oil production pipe column includes: the hydraulic packer comprises an oil pipe hanger 1, a first oil pipe short section 2, a first oil pipe 3, a pump barrel 4 of a pipe pump, a second oil pipe 5, a sieve pipe 6, a third oil pipe 7, a first plug 8, a hydraulic release 9, a second oil pipe short section 10, a first packer 11, a fourth oil pipe 12, a first pressure control switch 13, a fifth oil pipe 14, a second packer 15, a sixth oil pipe 16, a second pressure control switch 17, a seventh oil pipe 18, a third packer 19, a third oil pipe short section 20, a third pressure control switch 21, a fourth oil pipe short section 22 and a second plug 23. Wherein,
The upper end of the oil pipe hanger 1 is positioned at an oil well mouth, and the lower end of the oil pipe hanger 1 is connected with the upper end of the first oil pipe nipple 2; the lower end of the first oil pipe short section 2 is connected with the upper end of the first oil pipe 3; the lower end of the first oil pipe 3 is connected with the upper end of a pump barrel 4 of the tubular pump; the lower end of the pump barrel 4 of the tubular pump is connected with the upper end of the second oil pipe 5; the lower end of the second oil pipe 5 is connected with the upper end of the sieve pipe 6; the lower end of the sieve tube 6 is connected with the upper end of a third oil tube 7; the lower end of the third oil pipe 7 is connected with a first plug 8; a gap is arranged between the first plug 8 and the upper end of the hydraulic release 9; the lower end of the hydraulic release 9 is connected with the upper end of a second oil pipe nipple 10; the lower end of the second oil pipe nipple 10 is connected with the upper end of a first packer 11; the lower end of the first packer 11 is connected with the upper end of a fourth oil pipe 12; the lower end of the fourth oil pipe 12 is connected with the upper end of the first pressure-controlled switch 13; the lower end of the first pressure-controlled switch 13 is connected with the upper end of a fifth oil pipe 14; the lower end of the fifth oil pipe 14 is connected with the upper end of a second packer 15; the lower end of the second packer 15 is connected with the upper end of a sixth oil pipe 16; the lower end of the sixth oil pipe 16 is connected with the upper end of the second pressure-controlled switch 17; the lower end of the second pressure-controlled switch 17 is connected with the upper end of a seventh oil pipe 18; the lower end of the seventh oil pipe 18 is connected with the upper end of a third packer 19; the lower end of the third packer 19 is connected with the upper end of a third oil pipe nipple 20; the lower end of the third oil pipe nipple 20 is connected with the upper end of a third pressure-controlled switch 21; the lower end of the third pressure-controlled switch 21 is connected with the upper end of a fourth oil pipe nipple 22; the lower end of the fourth tubing nipple 22 is connected to a second plug 23.
The pressure control switch is internally provided with a control circuit, and when a starting or closing signal is sent to the pressure control switch, the pressure control switch executes corresponding starting or closing action so as to control the switching state of the oil layer. According to the working principle of the pressure-controlled switch, in the layered oil production string provided by the embodiment of the utility model, the first pressure-controlled switch 13 is arranged between the fourth oil pipe 12 and the fifth oil pipe 14 which are positioned between the first packer 11 and the second packer 15, the second pressure-controlled switch 17 is arranged between the sixth oil pipe 16 and the seventh oil pipe 18 which are positioned between the second packer 15 and the third packer 19, the third pressure-controlled switch 21 is arranged between the third oil pipe nipple 20 and the fourth oil pipe nipple 22 which are positioned below the third packer 19, the switch of the pressure-controlled switch is controlled on the ground according to the requirements of geological schemes, thereby realizing the random layer changing of the oil layer under the condition of not moving the string, meeting the requirement of random switching of the production layer in the layered oil production, being particularly suitable for the exploitation of the oil deposit precipitation in a toothbrush shape, achieving the purpose of increasing the oil, meanwhile, the mining efficiency is improved, and the labor intensity of workers is reduced. Adopt the embodiment of the utility model provides a layering oil production pipe carries out the layering oil recovery operation at on-the-spot 4 oil wells, and the success rate of layering oil recovery is 100%, and oil well single well output increases more than 1.3 tons on average day, and average daily precipitation 5.1m 3The above.
Furthermore, in the layered oil production column of the embodiment of the utility model, the first oil pipe nipple 2, the second oil pipe nipple 10, the third oil pipe nipple 20 and the fourth oil pipe nipple 22 adopt phi 73mm oil pipe nipples; phi 73mm thickened oil pipes are adopted for the first oil pipe 3, the second oil pipe 5, the third oil pipe 7, the fourth oil pipe 12, the fifth oil pipe 14, the sixth oil pipe 16 and the seventh oil pipe 18; the sieve tube 6 adopts a phi 73mm sieve tube; the first plug 8 and the second plug 23 are plug with diameter of 73 mm; the hydraulic releasing 9 is a hydraulic releasing with the diameter of 112 mm; the first packer 11 is selected as the Y441-114 packer, and the second packer 15 and the third packer 19 are selected as the Y341-114 packer.
Furthermore, in the layered oil production column provided by the embodiment of the utility model, the oil pipe hanger 1, the first oil pipe nipple 2, the first oil pipe 3, the tubular pump cylinder 4, the second oil pipe 5, the sieve pipe 6, the third oil pipe 7 and the first plug 8 are connected through screw threads; and the hydraulic release 9, the second oil pipe short section 10, the first packer 11, the fourth oil pipe 12, the first pressure-controlled switch 13, the fifth oil pipe 14, the second packer 15, the sixth oil pipe 16, the second pressure-controlled switch 17, the seventh oil pipe 18, the third packer 19, the third oil pipe short section 20, the third pressure-controlled switch 21, the fourth oil pipe short section 22 and the second plug 23 are also connected through threads. The distance between the first plug 8 and the hydraulic release 9 can be determined by those skilled in the art according to the actual conditions of the oil well.
Further, the utility model discloses oil well hanger, phi 73mm screen pipe, phi 73mm oil pipe nipple joint, phi 73mm thickened oil pipe and phi 73mm plug in the layering oil production post of embodiment adopt the equipment that the oil field of market commonly used can.
The Y441-114 packer and the Y341-114 packer are preferably products produced by the institute of oil extraction engineering, China Petroleum North China oilfield, Inc., and those skilled in the art can also select similar products with the same performance in the market.
The voltage-controlled switch is preferably made of a product manufactured by the company beijing oell, and those skilled in the art can select the same product with the same performance in the market.
The tubing pumps are preferably manufactured by Shandong Wimama pumps, Inc., and may be selected from the tubing pumps having the specifications of phi 32, phi 38, phi 44, and phi 56, or those skilled in the art may select the same type of commercially available tubing pump having the same performance.
The embodiment of the utility model provides an implementation method of layering oil production pipe column does: after the layered oil production pipe column is put into the oil well casing, a tubular pump plunger, an oil pumping rod and a polished rod are sequentially arranged in the layered oil production pipe column, and finally, the well is completed, and the oil well pumps to produce normally.
The layered oil production string with the pressure control switch according to the embodiment of the present invention is further described in detail below by taking the jin XXX-2 well as an example.
The geological scheme of JinXXX-2 well in 2016, 03 months requires that the first section is produced, the second section and the third section are closed, and the production is continued if the capacity is available; if the yield is low, the second section is produced, and the first section and the third section are closed, and if the capacity is available, the production is continued; if the yield is low, the third stage is produced, and the first and second stages are closed. The requirements of layered oil extraction are as follows: first stage 6#Layer, 4.6m3D; second section 9#、11#Layer, 9m3D; third section 14#Layer, 5.8m3D; the following pump requirements: daily liquid 15m3And a liquid level of 1700 m. The base data of each layer of the JinXXX-2 well is shown in Table 1.
Table 1: base data of each layer of JinXXX-2 well
| Layer number | Well section | Thickness (m) |
| 6# | 2584.2～2588.0 | 4.6m |
| 9# | 2610.0～2615.5 | 5.5m |
| 11# | 2627.5～2631.0 | 3.5m |
| 14# | 2640.2～2646.0 | 5.8m |
The oil extraction engineering adopts a layered oil extraction pipe column with a pressure control switch for construction according to a geological scheme.
According to above-mentioned geological scheme and each layer basic data of jin XXX-2 well, the embodiment of the utility model provides a layering oil production pipe column with voltage-controlled switch ware. Referring to fig. 1, the layered production string with the pressure control switch is arranged inside a sleeve of a jin XXX-2 well, and comprises:
an oil pipe hanger 1 with the length of 0.5m, an oil pipe nipple joint (namely a first oil pipe nipple 2) with the length of 3.0m, a phi 73mm thickened oil pipe (namely a first oil pipe 3) with the length of 1996.5m, a tubular pump barrel 4 with the length of 6.5m, a phi 73mm thickened oil pipe (namely a second oil pipe 5) with the length of 19m, a phi 73mm sieve tube (namely a sieve tube 6) with the length of 1m, a phi 73mm thickened oil pipe (namely a third oil pipe 7) with the length of 19m and a phi 73mm screwed plug (namely a first screwed plug 8) with the length of 0.5m are sequentially connected from top to bottom through screw threads from a wellhead of an oil well; and a 112mm hydraulic release (i.e. hydraulic release 9) with a length of 0.5m, a 73mm tubing nipple (i.e. second tubing nipple 10) with a length of 1m, a Y441-114 packer (i.e. first packer 11) with a length of 1.39m, a 73mm thickened tubing (i.e. fourth tubing 12) with a length of 11m, a pressure-controlled switch (i.e. first pressure-controlled switch 13) with a length of 0.79m, a 73mm thickened tubing (i.e. fifth tubing 14) with a length of 11m, a Y341-114 packer (i.e. second packer 15) with a length of 1.26m, a 73mm thickened tubing (i.e. sixth tubing 16) with a length of 30m, a pressure-controlled switch (i.e. second pressure-controlled switch 17) with a length of 0.79m, a 73mm thickened tubing (i.e. seventh packer 18) with a length of 10m, a Y341-114 packer (i.e. third packer 19) with a length of 1.26m, which are sequentially connected with a certain distance from top to bottom through screw threads, A phi 73mm oil pipe short section (namely a third oil pipe short section 20) with the length of 5.5m, a pressure control switch device (namely a third pressure control switch device 21) with the length of 0.79m, a phi 73mm oil pipe short section (namely a fourth oil pipe short section 22) with the length of 22.5m and a phi 73mm plug (namely a second plug 23) with the length of 0.5 m.
And (3) after the layered oil production pipe with the voltage-controlled switch is put into a sleeve of a JinXXX-2 well, a tubular pump plunger, a sucker rod and a polished rod are sequentially arranged in the layered oil production pipe, and finally, the well is completed, and the oil well is pumped for normal production. After the JinXXX-2 well construction is completed, the daily output of the oil well is increased by 1.4 tons, and the daily rainfall is 2.5m3。
To sum up, the embodiment of the utility model provides a layering oil production pipe column with voltage-controlled switch through set up the voltage-controlled switch ware in layering oil production pipe column, realizes under the condition of motionless tubular column, trades the layer wantonly repeatedly to the oil reservoir to the needs that the interior production zone of well was random when satisfying the layering oil recovery changed reach precipitation and increase oil's purpose. Adopt the utility model discloses the one-time success rate that layering oil production pipe carried out layering oil recovery can reach 100%, and oil well individual well daily output and daily precipitation are showing and are improving simultaneously.
The above is only for facilitating the understanding of the technical solutions of the present invention by those skilled in the art, and is not intended to limit the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. A layered production string having a pressure controlled switch, the layered production string being disposed within an oil well casing (24), the layered production string comprising: the device comprises an oil pipe hanger (1), a first oil pipe short section (2), a first oil pipe (3), a tubular pump barrel (4), a second oil pipe (5), a sieve pipe (6), a third oil pipe (7), a first plug (8), a hydraulic release (9), a second oil pipe short section (10), a first packer (11), a fourth oil pipe (12), a first pressure control switch (13), a fifth oil pipe (14), a second packer (15), a sixth oil pipe (16), a second pressure control switch (17), a seventh oil pipe (18), a third packer (19), a third oil pipe short section (20), a third pressure control switch (21), a fourth oil pipe short section (22) and a second plug (23);
the upper end of the oil pipe hanger (1) is positioned at an oil well mouth, and the lower end of the oil pipe hanger (1) is connected with the upper end of the first oil pipe nipple (2);
the lower end of the first oil pipe short section (2) is connected with the upper end of the first oil pipe (3);
the lower end of the first oil pipe (3) is connected with the upper end of the pump barrel (4) of the tubular pump;
the lower end of the pump cylinder (4) of the tubular pump is connected with the upper end of the second oil pipe (5);
the lower end of the second oil pipe (5) is connected with the upper end of the sieve pipe (6);
The lower end of the sieve tube (6) is connected with the upper end of the third oil tube (7);
the lower end of the third oil pipe (7) is connected with the first plug (8);
a gap is arranged between the first plug (8) and the upper end of the hydraulic release (9);
the lower end of the hydraulic release (9) is connected with the upper end of the second oil pipe nipple (10);
the lower end of the second oil pipe nipple (10) is connected with the upper end of the first packer (11);
the lower end of the first packer (11) is connected with the upper end of the fourth oil pipe (12);
the lower end of the fourth oil pipe (12) is connected with the upper end of the first pressure-controlled switch (13);
the lower end of the first pressure-controlled switch (13) is connected with the upper end of the fifth oil pipe (14);
the lower end of the fifth oil pipe (14) is connected with the upper end of the second packer (15);
the lower end of the second packer (15) is connected with the upper end of the sixth oil pipe (16);
the lower end of the sixth oil pipe (16) is connected with the upper end of the second pressure-controlled switch (17);
the lower end of the second pressure-controlled switch (17) is connected with the upper end of the seventh oil pipe (18);
the lower end of the seventh oil pipe (18) is connected with the upper end of the third packer (19);
the lower end of the third packer (19) is connected with the upper end of the third oil pipe nipple (20);
The lower end of the third oil pipe short section (20) is connected with the upper end of the third pressure-controlled switch (21);
the lower end of the third pressure-controlled switch (21) is connected with the upper end of the fourth oil pipe short section (22);
the lower end of the fourth oil pipe nipple (22) is connected with the second plug (23).
2. The stratified oil production string according to claim 1, wherein the first tubing sub (2), the second tubing sub (10), the third tubing sub (20) and the fourth tubing sub (22) are phi 73mm tubing sub;
the first oil pipe (3), the second oil pipe (5), the third oil pipe (7), the fourth oil pipe (12), the fifth oil pipe (14), the sixth oil pipe (16) and the seventh oil pipe (18) are phi 73mm thickened oil pipes;
the sieve tube (6) is a phi 73mm sieve tube;
the first plug (8) and the second plug (23) are phi 73mm plugs;
the hydraulic releasing tool (9) is a hydraulic releasing tool with the diameter of 112 mm;
the first packer (11) is a Y441-114 packer;
the second packer (15) and the third packer (19) are Y341-114 packers.
3. The layered oil production string according to claim 1, wherein the tubing hanger (1), the first tubing nipple (2), the first tubing (3), the tubing pump barrel (4), the second tubing (5), the screen (6), the third tubing (7) and the first plug (8) are connected by screw threads; the hydraulic release device is characterized in that the hydraulic release device (9), the second oil pipe short section (10), the first packer (11), the fourth oil pipe (12), the first pressure-controlled switch device (13), the fifth oil pipe (14), the second packer (15), the sixth oil pipe (16), the second pressure-controlled switch device (17), the seventh oil pipe (18), the third packer (19), the third oil pipe short section (20), the third pressure-controlled switch device (21), the fourth oil pipe short section (22) and the second plug (23) are connected through threads.
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| CN201620230897.1U CN205532523U (en) | 2016-03-24 | 2016-03-24 | Layered oil production pipe column with pressure control switch |
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| CN201620230897.1U CN205532523U (en) | 2016-03-24 | 2016-03-24 | Layered oil production pipe column with pressure control switch |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106593366A (en) * | 2017-01-14 | 2017-04-26 | 河北宏龙环保科技有限公司 | Oil well multilayer mining method and device |
| CN106640026A (en) * | 2016-12-14 | 2017-05-10 | 中国海洋石油总公司 | Pressure control type intelligent production pipe column capable of injecting acid by layer selection and production method |
| CN111119801A (en) * | 2018-10-31 | 2020-05-08 | 中国石油天然气股份有限公司 | Oil testing tubular column, perforating tubular column and continuous oil testing method |
| CN112627742A (en) * | 2020-12-11 | 2021-04-09 | 中国石油集团渤海钻探工程有限公司 | Controllable layered oil production/testing process pipe column |
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- 2016-03-24 CN CN201620230897.1U patent/CN205532523U/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106640026A (en) * | 2016-12-14 | 2017-05-10 | 中国海洋石油总公司 | Pressure control type intelligent production pipe column capable of injecting acid by layer selection and production method |
| CN106640026B (en) * | 2016-12-14 | 2019-08-16 | 中国海洋石油集团有限公司 | A kind of pressure-controlled intelligent flow string and production method of optional layer acid filling |
| CN106593366A (en) * | 2017-01-14 | 2017-04-26 | 河北宏龙环保科技有限公司 | Oil well multilayer mining method and device |
| CN111119801A (en) * | 2018-10-31 | 2020-05-08 | 中国石油天然气股份有限公司 | Oil testing tubular column, perforating tubular column and continuous oil testing method |
| CN112627742A (en) * | 2020-12-11 | 2021-04-09 | 中国石油集团渤海钻探工程有限公司 | Controllable layered oil production/testing process pipe column |
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