CN201687465U - Stopper type pressure gauge capable of measuring flow pressure at rear of eccentric filling wellhead - Google Patents
Stopper type pressure gauge capable of measuring flow pressure at rear of eccentric filling wellhead Download PDFInfo
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- CN201687465U CN201687465U CN2010201516166U CN201020151616U CN201687465U CN 201687465 U CN201687465 U CN 201687465U CN 2010201516166 U CN2010201516166 U CN 2010201516166U CN 201020151616 U CN201020151616 U CN 201020151616U CN 201687465 U CN201687465 U CN 201687465U
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Abstract
The utility model relates to a stopper type pressure gauge capable of measuring flow pressure at the rear of an eccentric filling wellhead, which is used for eccentric filling wells in oil fields. The stopper type pressure gauge is characterized in that a pressure gauge main body is connected between a fishing head and a gland, a wellhead front pressure sensor and a wellhead rear pressure sensor are disposed in a pressure gauge cabin of the pressure gauge main body, the wellhead front pressure sensor corresponds to a wellhead front pressure guide hole on the side wall of the pressure gauge main body, the wellhead rear pressure sensor corresponds to a wellhead rear pressure guide hole at the center of the pressure gauge main body, a ceramic water nozzle is disposed at an inner hole of the lower end of the pressure gauge main body and communicated with a liquid feeding hole on the gland and a liquid discharge hole on the side wall of the pressure gauge main body, the middle of the outer wall of the pressure gauge main body is fixed with a positioning spring sheet, and the lower portion of the outer wall of the pressure gauge min body is fixed with a sealing packing. The pressure gauge can be filled via the original well water nozzle, and realizes pressure measurement operations on conditions of having identical filling states with the original well.
Description
Technical field:
The utility model relates to the normally water filling that use in the oil field in eccentric injection allocation well, can monitor the stopper type pressure gauge that stream is pressed behind the eccentric injection allocation well mouth that records of strata pressure behind interval of interest flowing pressure in the oil pipe under normal injection state and the mouth again.
Technical background:
Oil field stopper type pressure gauge commonly used is that pressure gauge is put into waterflood path at present, owing in use can not carry out normal water filling to test zone, so can only monitor stratum static pressure behind the mouth after the flowing pressure of non-interval of interest in the oil pipe and pressure gauge set, at the down-hole pressure state of this test period with normal water filling state difference, and can't continuous monitoring to the situation of change of eccentric injection allocation well strata pressure behind oil pipe internal pressure under the normal injection state and mouth.
The utility model content:
The technical problems to be solved in the utility model provides a kind of both normally water fillings of using in eccentric injection allocation well, can monitor simultaneously under normal injection state the stopper type pressure gauge that stream is pressed behind the pressure of interval of interest in the oil pipe and the mouth again.
In order to address the above problem, the technical solution of the utility model is: flow the stopper type pressure gauge of pressing after can recording eccentric injection allocation well mouth, comprise the fishing head of upper end and the gland of lower end, between described fishing head and gland, connect the pressure gauge main body, the pressure gauge cabin of pressure gauge main body is built-in with before the mouth pressure sensor behind the pressure sensor and mouth, the pressure pressure guide hole is corresponding before the mouth before the mouth on pressure sensor and the pressure gauge main body wall, and pressure sensor is corresponding with pressure pressure guide hole behind the mouth that pressure gauge main center locates behind the mouth; The endoporus place of pressure gauge main body lower end is equipped with ceramic water nozzle, communicates with inlet opening on the gland and the fluid hole on the pressure gauge main body wall; The middle part of pressure gauge main body outer wall fixedly has projection and retainer spring sheets that the angle of inclination, both sides is different, bottom fixing seal packing.
Have the release pin hole on the described fishing head; Be equipped with sealing ring respectively between the endoporus of fishing head and pressure gauge main body and between the lower surface of the shoulder of ceramic water nozzle and pressure gauge main body.
The beneficial effects of the utility model are: owing to adopt technique scheme, this pressure gauge has the water distribution structure of normal blanking plug, has the pressure measurement function again, can use former well water mouth to carry out injection allocation, guarantee under the condition of Tong Yuanjing injection state consistency, to carry out pressure measurement work, obtain strata pressure behind oil pipe internal pressure and the mouth simultaneously, the pressure that records by this pressure gauge will can be used in well test analysis, obtain real more formation parameter.
Description of drawings:
Accompanying drawing 1 is the structural representation of utility model;
Accompanying drawing 2 is the partial enlarged drawing of A in the accompanying drawing 1.
1-fishing head among the figure, 2-release pin hole, 3-set bolt, 4-retainer spring sheet, 5-pressure gauge cabin, pressure sensor before the 6-mouth, pressure pressure guide hole before the 7-mouth, pressure sensor behind the 8-mouth, pressure pressure guide hole behind the 9-mouth, the 10-fluid hole, 11-pottery water nozzle, 12-inlet opening, the 13-sealing ring, the 14-gland, 15-sealed packing, 16-pressure gauge main body.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
Shown in accompanying drawing 1, this stopper type pressure gauge that can record that stream is pressed behind the eccentric injection allocation well mouth is that pressure gauge is combined with blanking plug, is guaranteeing the normal water filling of test zone simultaneously, obtains strata pressure behind the pressure of interval of interest in the oil pipe and the mouth.This pressure gauge mainly comprises pressure sensor 8 behind pressure sensor 6 before the fishing head 1, pressure gauge main body 16, retainer spring sheet 4, mouth, the mouth, ceramic water nozzle 11, sealed packing 15 and gland 14; Wherein have release pin hole 2 on the fishing head 1, release pin is installed in release pin hole 2, is used for pressure gauge being lowered to the inclined to one side hole of injection well downhole flow regulator and salvaging and use.14 internal threads of fishing head 1 and gland connect pressure gauge main body 16, are equipped with sealing ring 13 between the endoporus of fishing head 1 and pressure gauge main body 16; Establish pressure gauge cabin 5 in the middle part of pressure gauge main body 16, pressure gauge cabin 5 is built-in with before the mouth pressure sensor 8 behind the pressure sensor 6 and mouth, pressure sensor 6 is positioned at behind the mouth on the pressure sensor 8 before the mouth, and pressure sensor 8 is same sensors behind preceding pressure sensor 6 of described mouth and the mouth, it only is pressure transmission hole position difference, what monitored is different pressure, the pressure sensor model is " down-hole, the small-sized oil field of a DM titanium/silicon-on-sapphire pressure sensor ", belongs to Russian microelectronic sensor industrial group product; Pressure sensor 6 is corresponding with the preceding pressure pressure guide hole 7 of the mouth on pressure gauge main body 16 sidewalls before the mouth, press by the stream in the 7 monitoring oil pipes of pressure pressure guide hole before the mouth, pressure before the just usually said mouth, behind the mouth behind the mouth of pressure sensor 8 and pressure gauge main body 16 centers pressure pressure guide hole 9 corresponding, stream by the 9 monitoring stratum of pressure pressure guide hole behind the mouth is pressed pressure behind the just usually said mouth; The endoporus place of pressure gauge main body 16 lower ends is equipped with ceramic water nozzle 11, communicate with inlet opening 12 on the gland 14 and the fluid hole 10 on pressure gauge main body 17 sidewalls, and be equipped with sealing ring 13 between the lower surface of the shoulder of ceramic water nozzle 11 and pressure gauge main body 16, after pressure gauge drops into the inclined to one side hole of injection well downhole flow regulator, inject water and enter the stratum through fluid hole 10 by the inlet opening 12 of the pressure gauge lower end ceramic water nozzle 11 of flowing through, after can guaranteeing that pressure gauge is lowered to the inclined to one side hole of injection well downhole flow regulator, injection state when this layer injection well downhole flow regulator can be according to ordinary production carries out injection allocation, and pressure gauge can monitor simultaneously that stream in the oil pipe is pressed and the stream pressure on stratum; 2 to 4 retainer spring sheets 4 are circumferentially fixed by set bolt 3 in the middle part of pressure gauge main body 16 outer walls, position after pressure gauge is lowered to the inclined to one side hole of injection well downhole flow regulator realizing; Retainer spring sheet 4 intermediate projections, the angle of inclination of both sides is inconsistent about the projection, and the inclination angle of lower end is less, and angle [alpha] is at the 15-30 degree, be convenient to instrument is imported in the inclined to one side hole, the inclination angle, upper end is bigger, and angle beta is at the 45-75 degree, and guaranteeing has enough support forces when instrument takes off card, when taking off card greater than pressure gauge, the strength that retainer spring sheet 4 is regained cuts off the required shear strength of pin, can guarantee the fashionable card that reliably takes off under the pressure gauge, just pressure gauge reliably can be proposed during salvaging that concrete angle as shown in Figure 2; The fixing two seals packing 15 up and down in the bottom of pressure gauge main body 16 outer walls in addition, in order to and the inclined to one side hole of injection well downhole flow regulator between seal.
This pressure gauge has overcome in the prior art can not carry out normal water filling to test zone, can only monitor the deficiency of stratum static pressure behind the mouth after the flowing pressure of non-interval of interest in the oil pipe and pressure gauge set, can use former well water mouth to carry out injection allocation, guarantee under the condition of Tong Yuanjing injection state consistency, to carry out pressure measurement work, obtain strata pressure behind the flowing pressure of interval of interest in the oil pipe and the mouth simultaneously, make the pressure data that records by this pressure gauge will can be used in well test analysis, obtain real more formation parameter.
Claims (3)
1. flow the stopper type pressure gauge of pressing after can recording eccentric injection allocation well mouth, comprise the fishing head (1) of upper end and the gland (14) of lower end, it is characterized in that: connect pressure gauge main body (16) between fishing head (1) and gland (14), the pressure gauge cabin (5) of pressure gauge main body (16) is built-in with before the mouth pressure sensor (8) behind the pressure sensor (6) and mouth, pressure sensor (6) is corresponding with the preceding pressure pressure guide hole (7) of the mouth on pressure gauge main body (16) sidewall before the mouth, and pressure pressure guide hole (9) is corresponding behind the mouth of pressure sensor behind the mouth (8) and pressure gauge main body (16) center; The endoporus place of pressure gauge main body (16) lower end is equipped with ceramic water nozzle (11), communicates with inlet opening (12) on the gland (14) and the fluid hole (10) on pressure gauge main body (17) sidewall; The middle part of pressure gauge main body (16) outer wall fixedly has projection and retainer spring sheets (4) that the angle of inclination, both sides is different, bottom fixing seal packing (15).
2. according to claim 1ly record the stopper type pressure gauge that stream is pressed behind the eccentric injection allocation well mouth, it is characterized in that: have release pin hole (2) on the fishing head (1).
3. according to claim 1ly record the stopper type pressure gauge that stream is pressed behind the eccentric injection allocation well mouth, it is characterized in that: reach between the endoporus of fishing head (1) and pressure gauge main body (16) between the lower surface of the shoulder of ceramic water nozzle (11) and pressure gauge main body (16) and be equipped with sealing ring (13) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201516166U CN201687465U (en) | 2010-04-07 | 2010-04-07 | Stopper type pressure gauge capable of measuring flow pressure at rear of eccentric filling wellhead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201516166U CN201687465U (en) | 2010-04-07 | 2010-04-07 | Stopper type pressure gauge capable of measuring flow pressure at rear of eccentric filling wellhead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201687465U true CN201687465U (en) | 2010-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201516166U Expired - Lifetime CN201687465U (en) | 2010-04-07 | 2010-04-07 | Stopper type pressure gauge capable of measuring flow pressure at rear of eccentric filling wellhead |
Country Status (1)
| Country | Link |
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| CN (1) | CN201687465U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678105A (en) * | 2012-05-18 | 2012-09-19 | 中国石油天然气股份有限公司 | Double-channel storage type blanking plug water distribution pressure gauge |
| CN104215405A (en) * | 2013-06-03 | 2014-12-17 | 中国石油天然气股份有限公司 | Seal checking method and seal checking tool for packer of layered water injection well |
| CN104632149A (en) * | 2014-12-29 | 2015-05-20 | 中国石油天然气股份有限公司 | Layered pressure measuring and production allocator and underground layered oil production device |
| CN107120100A (en) * | 2017-06-28 | 2017-09-01 | 四川省科学城久利电子有限责任公司 | A kind of water filling measurement apparatus using regulation eccentric injection allocation with one heart |
| CN114856548A (en) * | 2022-05-20 | 2022-08-05 | 西南石油大学 | Chemical flooding pressure-dividing well layering pressure measuring device |
-
2010
- 2010-04-07 CN CN2010201516166U patent/CN201687465U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678105A (en) * | 2012-05-18 | 2012-09-19 | 中国石油天然气股份有限公司 | Double-channel storage type blanking plug water distribution pressure gauge |
| CN104215405A (en) * | 2013-06-03 | 2014-12-17 | 中国石油天然气股份有限公司 | Seal checking method and seal checking tool for packer of layered water injection well |
| CN104632149A (en) * | 2014-12-29 | 2015-05-20 | 中国石油天然气股份有限公司 | Layered pressure measuring and production allocator and underground layered oil production device |
| CN104632149B (en) * | 2014-12-29 | 2017-04-05 | 中国石油天然气股份有限公司 | Layered pressure measuring and production allocator and underground layered oil production device |
| CN107120100A (en) * | 2017-06-28 | 2017-09-01 | 四川省科学城久利电子有限责任公司 | A kind of water filling measurement apparatus using regulation eccentric injection allocation with one heart |
| CN114856548A (en) * | 2022-05-20 | 2022-08-05 | 西南石油大学 | Chemical flooding pressure-dividing well layering pressure measuring device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101229 |
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| CX01 | Expiry of patent term |