CN205025458U - Downhole throttling pressure and temperature monitoring integrated tool - Google Patents
Downhole throttling pressure and temperature monitoring integrated tool Download PDFInfo
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- CN205025458U CN205025458U CN201520606782.3U CN201520606782U CN205025458U CN 205025458 U CN205025458 U CN 205025458U CN 201520606782 U CN201520606782 U CN 201520606782U CN 205025458 U CN205025458 U CN 205025458U
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 65
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- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000011156 evaluation Methods 0.000 abstract description 2
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Abstract
The utility model discloses a throttle pressure temperature monitoring integration instrument in pit belongs to the oil and gas field. The integrated tool at least comprises: the integrated seat working cylinder, the underground throttler, the pressure and temperature monitoring assembly, the upper shock absorber, the lower shock absorber, the upper centralizer, the lower centralizer, the connector and the guide head. The tool can be put in and salvaged under the conditions that an oil pipe column is not pulled out, a cable is not used, and the production of the underground throttling gas well is not influenced. The integrated tool is put into the underground through well testing steel wire operation, and the pressure and the temperature before underground throttling are continuously monitored by combining the existing storage type monitoring device; meanwhile, the downhole throttling pressure and temperature monitoring integrated tool can be lifted out of the ground through steel wire operation, and downhole pressure and temperature monitoring data is read back for analysis and evaluation.
Description
Technical field
The utility model relates to petroleum gas field pressure and temp monitoring technical field, particularly a kind of downhole choke pressure and temp monitoring integration instrument.
Background technology
The throttling of petroleum gas down-hole is a step-down, temperature-fall period.Downhole Choking Technology technology underground throttle device is placed in a certain appropriate location of flow string, realize reducing pressure by regulating flow in pit shaft, surface throttling process is transferred among pit shaft, make full use of geothermal heating, after making throttling, gas flow temperature is higher than the gas hydrate synthesis maximum temperature under pressure condition after throttling, ground gas gathering line is buried under frozen soil layer simultaneously, like this in pit shaft, well head and surface line can not form Hydrate Plugging.
The bottom pressure of current Downhole Choking Technology well and temperature can obtain with means by the following method directly or indirectly:
One, electronics detaching/attaching device is adopted, can directly monitor well bottom pressure and bottom hole temperature (BHT), the continuous monitoring of long period can be realized.
Two, annulus liquid level method is adopted, calculate bottom pressure by detection oil jacket annulus liquid level, namely echometer is used, by gathering through the joint hoop ripple signal of well casing joint reflection and the liquid surface wave signal through oil reservoir surface reflection, find out pithead position, producing fluid level position and benchmark joint hoop ripple, then utilize formula to calculate dynamic oil level.
Three, adopt pressure, the temperature of electronic pressure gauge monitoring gas well, main employing permanent setting type down-hole pressure temperature monitoring technique, the core of cable permanent setting type monitoring technology have employed ERDTM electric resonance diaphragm pressure, temperature sensor technology.Electric resonance diaphragm is down-hole inductive component, is controlled the resonant diaphragm excited by ground.The hunting of frequency of will be correlated with measuring point pressure and temperature after pressure, temperature pick up excite by ground, reaching ground by cable by signal, through resolving process, drawing the pressure and temperature data of this detecting location.
Realizing in process of the present utility model, inventor finds that prior art at least exists following problem:
Due to the existence of underground throttle device, traditional well-logging method has been not suitable with the requirement of production performance observation; Adopt computing method comparatively large due to the error of the calculating of mouth stream pressure drop, cause wellbore pressure error of calculation comparatively large, the requirement of dynamic analysis data can not be met; Adopt electronics detaching/attaching device, for shaking out, may there is salvaging risk in the serious well of wax deposition, needs operation repeatedly; Adopt annulus liquid level method, its requirement is non-lower packet, but has packer, so can not implement due to most well.Adopt permanent setting type down-hole pressure temperature monitoring technique, enter cable under needs, cost is higher.
Summary of the invention
In order to solve the problem of prior art, the utility model embodiment provides a kind of downhole choke pressure and temp monitoring integration instrument.Put seating nipple, underground throttle device and pressure and temp monitoring assembly by integrated seat, realize the pressure before to downhole choke, temperature monitors continuously; And retaking of a year or grade is carried out to monitored data.Described technical scheme is as follows:
A kind of downhole choke pressure and temp monitoring integration instrument, at least comprises: integrated seat puts seating nipple, underground throttle device, pressure and temp monitoring assembly, upper damper, lower damper, upper centralizer, lower centralizer, joint, guide head.
Described integrated seat is knocked off and tube inner chamber is provided with described underground throttle device, and described underground throttle device bottom connects described pressure and temp monitoring assembly by described joint.
Described pressure and temp monitoring assembly at least comprises: high-temperature battery, control circuit, pressure sensor, housing, central tube; Described housing internal upper part is provided with damper, upper centralizer in turn; Described lower housing portion is connected with guide head, is provided with lower centralizer, lower damper in described guide head in turn.
Central tube is provided with in described housing, high-temperature battery, control circuit, pressure sensor is connected with in turn from top to bottom in described central tube, the measuring mechanism of composition down-hole pressure data monitoring, and being connected with underground throttle device, to be powered the collection of completed well downforce data and storage by high-temperature battery.
It is a reducing cylinder that described integrated seat puts seating nipple, and its inner chamber is provided with the shoulder hole matched with described underground throttle device profile.
Described joint is a reducing cylinder, and upper and lower is provided with screwed hole, circumferential four steam vents of the inner space in the middle part of described joint.
Described joint top screwed hole is used for being connected with underground throttle device bottom, and the housing that lower thread hole is used for monitoring with pressure and temp assembly is connected.
Described guide head is a tapered cylinder, and upper cylinder is cavity structure, and lower taper is entity structure.
Guide head cavity is inserted in the central tube bottom of described pressure and temp monitoring assembly, and described central tube outer wall is provided with described lower centralizer, is provided with described lower damper bottom described central tube.
Described pressure and temp monitoring assembly, by computer software control, comprises measuring unit, memory cell, battery unit; Wherein, measuring unit and memory cell are respectively for measuring and storing temperature force value, and battery unit is used for power supply.
The beneficial effect that the technical scheme that the utility model embodiment provides is brought is:
Putting seating nipple, underground throttle device and pressure and temp monitoring assembly by arranging integrated seat, under not tripping out oil pipe column and not using cable, do not affect downhole choke gas well liquid loading condition, input and the salvaging of instrument can be carried out.By piano wire operation by under downhole choke pressure and temp integrated tool lower going-into-well and in conjunction with existing memory-type monitoring device, realize the pressure before to downhole choke, temperature monitors continuously; By steel wire operation, downhole choke pressure and temp monitoring integration instrument is tripped out ground simultaneously, retaking of a year or grade reading is carried out to down-hole pressure temperature monitoring data, carries out assay.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the downhole choke pressure and temp monitoring integration tool construction schematic diagram that the utility model embodiment provides;
Fig. 2 is the downhole choke pressure and temp monitoring integration instrument using method schematic diagram that the utility model embodiment provides.
In figure, each symbol represents that implication is as follows:
1 integrated seat puts seating nipple;
2 underground throttle devices;
3 pressure and temp monitoring assemblies,
3.1 high-temperature batteries, 3.2 control circuits, 3.3 pressure sensors, 3.4 housings, 3.5 central tubes;
Damper on 4; 5 times dampers; Centralizer on 6; 7 times centralizers; 8 joints; 9 guide heads; 10 steel wires; 11 oil pipes.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model embodiment is described in further detail.
Shown in Figure 1, the utility model embodiment provides a kind of downhole choke pressure and temp monitoring integration instrument, at least comprises: integrated seat puts the component such as seating nipple 1, underground throttle device 2, pressure and temp monitoring assembly 3, upper damper 4, lower damper 5, upper centralizer 6, lower centralizer 7, joint 8, guide head 9; Particularly, described integrated seat is put seating nipple 1 inner chamber and is provided with underground throttle device 2, and underground throttle device 2 bottom is by joint 8 Bonding pressure temperature monitoring assembly 3.
Particularly, described pressure and temp monitoring assembly 3 at least comprises: high-temperature battery 3.1, control circuit 3.2, pressure sensor 3.3, housing 3.4, central tube 3.5 etc., central tube 3.5 is provided with in described housing 3.4, high-temperature battery 3.1, control circuit 3.2, pressure sensor 3.3 is connected with from top to bottom in turn in central tube 3.5, the measuring mechanism of composition down-hole pressure data monitoring, and be connected with underground throttle device 2, to be powered the collection of completed well downforce data and storage by high-temperature battery 3.1.Described pressure and temp monitoring assembly 3, by active computer software control, comprises measuring unit, memory cell, battery unit; Wherein, measuring unit and memory cell are respectively for measuring and storing temperature force value, and battery unit is used for power supply.
Particularly, housing 3.4 internal upper part of described pressure and temp monitoring assembly 3 is provided with upper damper 4, the upper centralizer 6 of prior art in turn; Housing 3.4 bottom is connected with guide head 9, is provided with the lower centralizer 7 of prior art, lower damper 5 in guide head 9 in turn.
Further, it is a reducing cylinder that described integrated seat puts seating nipple 1, and its inner chamber is provided with the shoulder hole matched with underground throttle device 2 profile; Described underground throttle device 2 is prior art, can select the underground throttle device product that engineering and technological research institute of Southwest Oil branch company produces.
Described joint 8 is a reducing cylinder, top is provided with screwed hole, and for being connected with underground throttle device 2 bottom, joint 8 bottom is provided with screwed hole, for being connected with the housing 3.4 that described pressure and temp monitors assembly 3, circumferential four steam vents of the inner space in the middle part of joint 8.
Described guide head 9 is a tapered cylinder, upper cylinder is cavity structure, and lower taper is entity structure, and cavity is inserted in central tube 3.5 bottom of described pressure and temp monitoring assembly 3, central tube 3.5 outer wall is provided with lower centralizer 7, is provided with lower damper 5 bottom central tube 3.5.
The utility model downhole choke pressure and temp monitoring integration instrument, resistance to compression can reach 70MPa, heatproof 150 DEG C, and pressure monitoring precision is 0.05%, and temperature monitoring precision is ± 0.2 DEG C.
Shown in Figure 2, the using method of the utility model embodiment: do not affect downhole choke gas well liquid loading prerequisite to throttling before pressure and temp monitor.
When needing the pressure and temp before monitoring downhole choke, by before under downhole choke pressure and temp monitoring integration instrument lower going-into-well, first after the arranging of the self-inspection of finishing equipment and pressure and temp sampling interval, integrated seat is put seating nipple 1 and is connected G.I.H precalculated position by self tubing thread with oil pipe 11, put in seating nipple 1 by steel wire 10 operation by entering under the utility model integrated tool is from oil pipe 11 to integrated seat, pressure and temp before the throttling of monitoring underground throttle device continuously.
When needs obtain downhole pressure/temperature data, salvaging integrated tool, carry out data playback process in indoor, analyze this well pressure variations in temperature by steel wire 10 operation, is the firsthand information for production provides.
In addition, the advantage that also has of the utility model embodiment:
Not only can monitor the pressure and temp before throttling for gas well downhole choke, the bottom pressure of monitoring downhole choke process well, for downhole choke dynamic analysis of gas well provides technical support, for evaluation and revision downhole choke pressure-drop theory model, form throttling well shaft calculation of pressure method, for gas reservoir protection analysis, science, safety, efficient, economic development provide basic basis.
Solve the problem needing operation repeatedly in prior art before the throttling of restriction choke producing well Real-Time Monitoring in pressure and temp monitoring method, reduce security risk during well testing; Owing to not relying on cable to provide monitoring power supply, therefore do not need to be equipped with cable and corresponding Special wellhead, reduce monitoring cost.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. a downhole choke pressure and temp monitoring integration instrument, it is characterized in that, at least comprise: integrated seat puts seating nipple (1), underground throttle device (2), pressure and temp monitoring assembly (3), upper damper (4), lower damper (5), upper centralizer (6), lower centralizer (7), joint (8), guide head (9).
2. downhole choke pressure and temp monitoring integration instrument according to claim 1, it is characterized in that, described integrated seat is put seating nipple (1) inner chamber and is provided with described underground throttle device (2), and described underground throttle device (2) bottom connects described pressure and temp monitoring assembly (3) by described joint (8).
3. downhole choke pressure and temp monitoring integration instrument according to claim 1, it is characterized in that, described pressure and temp monitoring assembly (3) at least comprises: high-temperature battery (3.1), control circuit (3.2), pressure sensor (3.3), housing (3.4), central tube (3.5); Described housing (3.4) internal upper part is provided with damper (4), upper centralizer (6) in turn; Described housing (3.4) bottom is connected with guide head (9), is provided with lower centralizer (7), lower damper (5) in described guide head (9) in turn.
4. downhole choke pressure and temp monitoring integration instrument according to claim 3, it is characterized in that, central tube (3.5) is provided with in described housing (3.4), high-temperature battery (3.1), control circuit (3.2), pressure sensor (3.3) is connected with from top to bottom in turn in described central tube (3.5), the measuring mechanism of composition down-hole pressure data monitoring, and be connected with underground throttle device (2), by collection and the storage of high-temperature battery (3.1) power supply completed well downforce data.
5. downhole choke pressure and temp monitoring integration instrument according to claim 1, it is characterized in that, it is a reducing cylinder that described integrated seat puts seating nipple (1), and its inner chamber is provided with the shoulder hole matched with described underground throttle device (2) profile.
6. downhole choke pressure and temp monitoring integration instrument according to claim 1, it is characterized in that, described joint (8) is a reducing cylinder, upper and lower is provided with screwed hole, circumferential four steam vents of inner space at described joint (8) middle part.
7. downhole choke pressure and temp monitoring integration instrument according to claim 6, it is characterized in that, described joint (8) top screwed hole is used for being connected with underground throttle device (2) bottom, and the housing (3.4) that lower thread hole is used for monitoring with pressure and temp assembly (3) is connected.
8. downhole choke pressure and temp monitoring integration instrument according to claim 1, is characterized in that, described guide head (9) is a tapered cylinder, and upper cylinder is cavity structure, and lower taper is entity structure.
9. the downhole choke pressure and temp monitoring integration instrument according to claim 1 or 3, it is characterized in that, guide head (9) cavity is inserted in central tube (3.5) bottom of described pressure and temp monitoring assembly (3), described central tube (3.5) outer wall is provided with described lower centralizer (7), and described central tube (3.5) bottom is provided with described lower damper (5).
10. downhole choke pressure and temp monitoring integration instrument according to claim 1, is characterized in that, described pressure and temp monitoring assembly (3), by computer software control, comprises measuring unit, memory cell, battery unit; Wherein, measuring unit and memory cell are respectively for measuring and storing temperature force value, and battery unit is used for power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520606782.3U CN205025458U (en) | 2015-08-12 | 2015-08-12 | Downhole throttling pressure and temperature monitoring integrated tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520606782.3U CN205025458U (en) | 2015-08-12 | 2015-08-12 | Downhole throttling pressure and temperature monitoring integrated tool |
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| CN205025458U true CN205025458U (en) | 2016-02-10 |
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| CN201520606782.3U Active CN205025458U (en) | 2015-08-12 | 2015-08-12 | Downhole throttling pressure and temperature monitoring integrated tool |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106288464A (en) * | 2016-08-05 | 2017-01-04 | 姜再新 | The method for building up of middle high-temperature geothermal heat exchange output system and middle high-temperature geothermal heat exchange output system |
| CN109505588A (en) * | 2017-09-15 | 2019-03-22 | 中国石油天然气股份有限公司 | Failure detection method for water injection valve of gravity flow water injection well |
| CN111734395A (en) * | 2019-03-20 | 2020-10-02 | 中国石油天然气股份有限公司 | Device for testing temperature and pressure of oil and gas well |
| CN114109314A (en) * | 2021-11-25 | 2022-03-01 | 西南石油大学 | Device for monitoring, preventing and treating hydrate in throttle well |
-
2015
- 2015-08-12 CN CN201520606782.3U patent/CN205025458U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106288464A (en) * | 2016-08-05 | 2017-01-04 | 姜再新 | The method for building up of middle high-temperature geothermal heat exchange output system and middle high-temperature geothermal heat exchange output system |
| CN106288464B (en) * | 2016-08-05 | 2018-04-03 | 姜再新 | The method for building up and high temperature underground heat heat exchange output system of high temperature underground heat heat exchange output system |
| CN109505588A (en) * | 2017-09-15 | 2019-03-22 | 中国石油天然气股份有限公司 | Failure detection method for water injection valve of gravity flow water injection well |
| CN109505588B (en) * | 2017-09-15 | 2022-03-29 | 中国石油天然气股份有限公司 | Failure detection method for water injection valve of gravity flow water injection well |
| CN111734395A (en) * | 2019-03-20 | 2020-10-02 | 中国石油天然气股份有限公司 | Device for testing temperature and pressure of oil and gas well |
| CN111734395B (en) * | 2019-03-20 | 2023-02-07 | 中国石油天然气股份有限公司 | Device for testing temperature and pressure of oil and gas well |
| CN114109314A (en) * | 2021-11-25 | 2022-03-01 | 西南石油大学 | Device for monitoring, preventing and treating hydrate in throttle well |
| CN114109314B (en) * | 2021-11-25 | 2022-06-17 | 西南石油大学 | Device for monitoring, preventing and treating hydrate in throttle well |
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