CN109505589A - A kind of hot cleanout and paraffin removal of oil well Wellbore Temperature Field distribution test method and tubing string - Google Patents
A kind of hot cleanout and paraffin removal of oil well Wellbore Temperature Field distribution test method and tubing string Download PDFInfo
- Publication number
- CN109505589A CN109505589A CN201811432291.6A CN201811432291A CN109505589A CN 109505589 A CN109505589 A CN 109505589A CN 201811432291 A CN201811432291 A CN 201811432291A CN 109505589 A CN109505589 A CN 109505589A
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- oil
- oil well
- memory type
- thermometer
- field distribution
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
- E21B47/07—Temperature
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B36/00—Heating, cooling, insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
Abstract
The invention belongs to oil-field hot-washing wax remover technical field more particularly to a kind of hot cleanout and paraffin removal of oil well Wellbore Temperature Field distribution test methods and tubing string.The present invention includes at least the thermometer group being from top to bottom distributed in oil pipe, at least one thermometer is located between the oil well pump and screen casing in oil pipe in thermometer group.The present invention realizes hot cleanout and paraffin removal of oil well Wellbore Temperature Field distribution tests, solve the problems, such as that fibre optic temperature sensor testing cost is high, influences vulnerable to hole condition, effective riser column length phase application reliability, simplify on-site operation process, temperature variations when intuitive reflection thermal well flushing in pit shaft, the basic principle with method of process parameter optimizing provide foundation when being thermal well flushing.
Description
Technical field
The invention belongs to oil-field hot-washing wax remover technical field more particularly to a kind of hot cleanout and paraffin removal of oil well temperature in wellbore field distribution
Test method and tubing string.
Background technique
Thermal well flushing is to maintain oil well and normally produces one of most common maintenance measure, and oil well paraffinication can be effectively prevented and make
At tube rod card, reduce extraction equipment load, extend oil well repair free period, reduce cost of winning.And influence thermal well flushing effect
Most important factor is Temperature Distribution of the hot wash medium in entire pit shaft, if the technological parameters such as well-flushing temperature, well-flushing discharge capacity are arranged
Unreasonable, hot wash medium will be lower than dewaxing temperature in the temperature of wax deposition section, and then cause well washing effect unobvious, or
It is long to restore the period for oil-producing after well-flushing, or even phenomena such as yield after well-flushing sharply declines occurs.Be badly in need of by different well-flushing temperature,
Under well-flushing discharge capacity hot wash pit shaft temperature distributing rule study, and then propose thermal well flushing when process parameter optimizing basic principle with
Method.Ordinary temperature field test technology mainly uses the mating magnetic locator of fibre optic temperature sensor to measure different depth coordinate at present
Under temperature, but it is at high cost, be affected by hole condition, accurate difficulty of test is big.
Summary of the invention
An object of the present invention be to provide a kind of testing cost it is low, not vulnerable to hole condition influence hot cleanout and paraffin removal of oil well pit shaft
Thermo parameters method test method；The second object of the present invention is to provide a kind of higher and simplified on-site operation process of reliability
Hot cleanout and paraffin removal of oil well Wellbore Temperature Field distribution tests tubing string；The third object of the present invention is that tubing string can intuitively reflect thermal well flushing
When pit shaft in temperature variations.
To achieve the above object, the technical solution adopted by the present invention is that:
A kind of hot cleanout and paraffin removal of oil well Wellbore Temperature Field distribution tests tubing string includes at least oil pipe, it is characterised in that: further includes setting
Thermometer group, sucker rod, oil well pump and screen casing in oil pipe；Oil well pump is placed in above screen casing, at least one in thermometer group
Between oil well pump and screen casing, remaining thermometer is successively set on above oil well pump thermometer from top to bottom；Thermometer group
It is detachably connected with oil pipe inner sidewall；Oil well pump upper end is connect with sucker rod one end；The sucker rod other end, which is connected with, to be arranged in oil
Pumping unit outside pipe.
It further include silk plug, the silk plug is connected to the lower end port of oil pipe.
The thermometer group is made of 3-10 thermometer.
The thermometer group is provided with 4 thermometers, respectively memory type temperature meter one, memory type temperature meter two, deposit
Storage formula thermometer three and memory type temperature meter four, wherein memory type temperature meter four is located between the oil well pump and screen casing in oil pipe,
Remaining memory type temperature meter one, memory type temperature meter two, memory type temperature meter three are successively set on the pumping in oil pipe from top to bottom
Above oil pump.
The spacing distance between all adjacent thermometers in the thermometer group is equal.
The thermometer group, screen casing are all made of screw thread mode with oil well pump and are mutually connected in oil pipe.
The sucker rod and there is gap between the thermometer on oil well pump top.
The upper end lateral wall of the oil pipe is also connected with oil connection.
The upper end of the oil pipe is provided with casing joint.
A kind of hot cleanout and paraffin removal of oil well Wellbore Temperature Field distribution test method, it is characterised in that:
Step 1) will successively be connected with memory type temperature meter one using oil pipe, memory type temperature meter two, memory type temperature meter three, take out
Oil pump, memory type temperature meter four, screen casing and silk plug tubing string, position is hung according to oil well pump, which is transferred into purpose position
It sets；
Step 2 opens the casing joint valve resting on the ground, to the fluid of injection heat, through oil jacket annulus downlink and underground liquid
Body mixing, pumping unit drive sucker rod that oil well pump is entered downhole fluid along oil pipe uplink from screen casing, pumping to ground from
Oil connection output；
Step 3) memory type temperature meter four, memory type temperature meter three, memory type temperature meter two, memory type temperature meter one continue respectively
Record measures the temperature of corresponding position；
Step 4) stops well, closes casing joint valve, then dismantles production wellhead, acts tubing string；
Step 5) plays back above-mentioned each memory type temperature meter temperature data, and it is corresponding to draw out different well depth positions according to the temperature of survey
Temperature curve, fitting can acquire hot cleanout and paraffin removal of oil well Wellbore Temperature Field distribution tests curve.
Beneficial effects of the present invention:
The present invention passes through the thermometer group being from top to bottom distributed in oil pipe, at least one thermometer is located in thermometer group
Oil well pump and screen casing in oil pipe and between, realize hot cleanout and paraffin removal of oil well Wellbore Temperature Field distribution tests, solve optical fiber temperature
The problem of sensor testing cost is high, vulnerable to hole condition influence is spent, effective riser column length phase application reliability simplifies field operation
Process.The present invention passes through the setting of memory type temperature meter group, temperature variations when intuitively reflecting thermal well flushing in pit shaft,
The basic principle and method of process parameter optimizing provide foundation when for thermal well flushing.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is schematic structural view of the invention.
In figure, 1- pumping unit；2- casing joint；3- oil connection；4- oil pipe；5- memory type temperature meter one；6- memory-type
Thermometer two；7- memory type temperature meter three；8- sucker rod；9- oil well pump；10- memory type temperature meter four；11- screen casing；12-
It is stifled.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
Embodiment one:
A kind of hot cleanout and paraffin removal of oil well Wellbore Temperature Field distribution tests tubing string as shown in Figure 1 includes at least oil pipe 4 and is arranged in oil
Thermometer group, sucker rod 8, oil well pump 9 and screen casing 11 in pipe 4；Oil well pump 9 is placed in above screen casing 11, in thermometer group at least
For one thermometer between oil well pump 9 and screen casing 11, remaining thermometer is successively set on 9 top of oil well pump from top to bottom；
Thermometer group is detachably connected with 4 inner sidewall of oil pipe；9 upper end of oil well pump is connect with 8 one end of sucker rod；8 other end of sucker rod connects
It is connected to the pumping unit 1 being arranged in outside oil pipe 4.
Embodiment two:
A kind of hot cleanout and paraffin removal of oil well Wellbore Temperature Field distribution tests tubing string as shown in Figure 1 includes at least oil pipe 4 and is arranged in oil
Thermometer group, sucker rod 8, oil well pump 9 and screen casing 11 in pipe 4；Oil well pump 9 is placed in above screen casing 11, in thermometer group at least
For one thermometer between oil well pump 9 and screen casing 11, remaining thermometer is successively set on 9 top of oil well pump from top to bottom；
Thermometer group is detachably connected with 4 inner sidewall of oil pipe；9 upper end of oil well pump is connect with 8 one end of sucker rod；8 other end of sucker rod connects
It is connected to the pumping unit 1 being arranged in outside oil pipe 4.
The thermometer group is provided with 4 thermometers, respectively memory type temperature meter 1, memory type temperature meter 26,
Memory type temperature meter 37 and memory type temperature meter 4 10, wherein memory type temperature meter four is located at oil well pump 9 and sieve in oil pipe 4
Between pipe 11, remaining memory type temperature meter one, memory type temperature meter two, memory type temperature meter three are successively set on oil from top to bottom
9 top of oil well pump in pipe 4.
It preferably further include silk plug 12, the silk plug 12 is connected to the lower end port of oil pipe 4.
Preferably the thermometer is memory type temperature meter.
Preferably the thermometer group, screen casing 11 are all made of screw thread mode with oil well pump 9 and are mutually connected in oil pipe 4.
The upper end of the oil pipe 4 is provided with casing joint 2.
In actual use, the pumping unit 1 being arranged on the ground is connected by the sucker rod 8 in oil pipe 4 with oil well pump 9
It connects.Successively thermometer group, oil well pump 9 and screen casing 11 are connected in oil pipe 4 from top to bottom, but at least one temperature in thermometer group
Degree meter be located at oil pipe 4 in oil well pump 9 and screen casing 11 and between.Thermometer group, oil well pump 9 and screen casing 11 also can be directly used
The connected mode of screw thread.Thermometer group can encrypt laying for thermometer according to well depth situation.Thermometer uses memory type temperature
Meter can record the temperature variations of the clear overall process of thermal well flushing, analyze convenient for subsequent data.Memory type temperature
That count model selection is JDYM-120-45-0.05.The setting of silk plug 12 prevents the leakage of pipeline, plays the role of sealing.
A kind of hot cleanout and paraffin removal of oil well Wellbore Temperature Field distribution test method: include the following steps:
Step 1) will successively be connected with memory type temperature meter 1, memory type temperature meter 26, memory type temperature meter three using oil pipe
7, the tubing string of oil well pump 9, memory type temperature meter 4 10, screen casing 11 and silk plug 12 hangs position according to oil well pump, will be under the tubing string
It is put into destination locations；
Step 2 opens 2 valve of casing joint resting on the ground, to the fluid of injection heat, through oil jacket annulus downlink and underground liquid
Body mixing, pumping unit drive sucker rod that oil well pump is entered downhole fluid along oil pipe uplink from screen casing, pumping to ground from
Oil connection output；
Step 3) memory type temperature meter four, memory type temperature meter three, memory type temperature meter two, memory type temperature meter one continue respectively
Record measures the temperature of corresponding position；
Step 4) stops well, closes 2 valve of casing joint, then dismantles production wellhead, acts tubing string；
Step 5) plays back above-mentioned each memory type temperature meter temperature data, and it is corresponding to draw out different well depth positions according to the temperature of survey
Temperature curve, fitting can acquire hot cleanout and paraffin removal of oil well Wellbore Temperature Field distribution tests curve.
The present invention is realized hot cleanout and paraffin removal of oil well Wellbore Temperature Field distribution tests, is solved by the setting of thermometer group
The problem of fibre optic temperature sensor testing cost is high, vulnerable to hole condition influence, and effectively improve the reliable of prolonged application of the present invention
Property, simplify on-site operation process.Temperature variations when can intuitively reflect thermal well flushing in pit shaft, draw out difference
The corresponding temperature curve in well depth position, fitting can acquire hot cleanout and paraffin removal of oil well Wellbore Temperature Field distribution tests curve, be the later period
Different blocks different type paraffin-troubled well determines that hot washing process, medium and parameter provide scientific basis.
Embodiment three:
A kind of hot cleanout and paraffin removal of oil well Wellbore Temperature Field distribution tests tubing string as shown in Figure 1, with embodiment two the difference is that:
The thermometer group is made of 3-10 thermometer, is not limited only to 4 of embodiment two.
In actual use, the setting of thermometer group allows the invention to obtain the temperature information of different location, is convenient for
Comprehensive analysis well temperature variation, the basic principle and method of process parameter optimizing provide science, accurately when being thermal well flushing
Foundation.Being provided with 3-10 thermometer, basic test meets needs, if well depth increases, can be further added by temperature according to actual needs
Spend the setting number of meter.
Example IV:
The spacing distance phase between all adjacent thermometers on the basis of embodiment two or three, in the thermometer group
Deng.
In actual use, 4 thermometers of thermometer group setting, i.e. memory type temperature meter 1, memory type temperature meter two
6 and 37 position of memory type temperature meter more than wax deposition well section, three thermometers, which are arranged, just can satisfy required, make testing expense
It is preferably minimized, save the cost.The spacing distance between all adjacent thermometers in thermometer group is equal, makes the data obtained more
Add and is conducive to data analysis.At least one thermometer, that is, setting of memory type temperature meter 4 10 is in oil well pump 9 and sieve in thermometer group
Between pipe 11, all temperature informations at wax deposition position in well are able to record, guarantee to obtain the comprehensive of data.
Embodiment five:
A kind of hot cleanout and paraffin removal of oil well Wellbore Temperature Field distribution tests tubing string as shown in Figure 1, with embodiment two the difference is that:
The sucker rod 8 and there is gap between the thermometer on 9 top of oil well pump.
In actual use, between the thermometer on 9 top of sucker rod 8 and oil well pump gap setting, avoid sucker rod 8
The friction generated between oil well pump 9 ensure that thermometer safety, successional acquisition number so as to avoid the damage of equipment
According to.
Embodiment six:
A kind of hot cleanout and paraffin removal of oil well Wellbore Temperature Field distribution tests tubing string as shown in Figure 1, with embodiment two the difference is that:
The upper end lateral wall of the oil pipe 4 is also connected with oil connection 3.
In actual use, the upper end lateral wall oil connection 3 of oil pipe 4 is connected with the pipeline on ground, ensure that this
Invention also can normally carry out oil producing operation while obtaining associated temperature test data.
In conclusion the present invention realizes hot cleanout and paraffin removal of oil well Wellbore Temperature Field distribution tests, solves fiber optic temperature biography
The problem of sensor testing cost is high, vulnerable to hole condition influence, effective riser column length phase application reliability simplifies field operation work
Sequence, while temperature variations when can intuitively reflect thermal well flushing in pit shaft, the base of process parameter optimizing when being thermal well flushing
This principle and method provide foundation.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present invention
In explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if should
When particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the description for being related to " first ", " second " etc. in the present invention is used for description purposes only, and should not be understood as
Its relative importance of indication or suggestion or the quantity for implicitly indicating indicated technical characteristic.Define as a result, " first ", "
The second " feature can explicitly or implicitly include at least one of the features.
Technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution
Conjunction is not present, also not the present invention claims protection scope within.
Claims (10)
1. a kind of hot cleanout and paraffin removal of oil well Wellbore Temperature Field distribution tests tubing string includes at least oil pipe (4), it is characterised in that: also wrap
Include thermometer group, sucker rod (8), oil well pump (9) and the screen casing (11) being arranged in oil pipe (4)；Oil well pump (9) is placed in screen casing
(11) top, at least one thermometer is located between oil well pump (9) and screen casing (11) in thermometer group, remaining thermometer is from upper
It is successively set under above oil well pump (9)；Thermometer group is detachably connected with oil pipe (4) inner sidewall；Oil well pump (9) upper end with
The connection of sucker rod (8) one end；Sucker rod (8) other end is connected with the setting pumping unit (1) external in oil pipe (4).
2. a kind of hot cleanout and paraffin removal of oil well Wellbore Temperature Field distribution tests tubing string as described in claim 1, it is characterised in that: also wrap
It includes silk plug (12), the silk plug (12) is connected to the lower end port of oil pipe (4).
3. a kind of hot cleanout and paraffin removal of oil well Wellbore Temperature Field distribution tests tubing string as described in claim 1, it is characterised in that: described
Thermometer group be made of 3-10 thermometer.
4. a kind of hot cleanout and paraffin removal of oil well Wellbore Temperature Field distribution tests tubing string as claimed in claim 3, it is characterised in that: described
Thermometer group be provided with 4 thermometers, respectively memory type temperature meter one, memory type temperature meter two, memory type temperature meter three
With memory type temperature meter four, wherein memory type temperature meter four is located between the oil well pump (9) in oil pipe (4) and screen casing (11),
Remaining memory-type thermometer one, memory type temperature meter two, memory type temperature meter three are successively set on the pumping in oil pipe (4) from top to bottom
Above oil pump (9).
5. such as a kind of any one of hot cleanout and paraffin removal of oil well Wellbore Temperature Field distribution tests tubing string of claim 1,3,4,
Be characterized in that: the spacing distance between all adjacent thermometers in the thermometer group is equal.
6. a kind of hot cleanout and paraffin removal of oil well Wellbore Temperature Field distribution tests tubing string as described in claim 1, it is characterised in that: described
Thermometer group, screen casing (11) and oil well pump (9) be all made of screw thread mode and be mutually connected in oil pipe (4).
7. a kind of hot cleanout and paraffin removal of oil well Wellbore Temperature Field distribution tests tubing string as described in claim 1, it is characterised in that: described
Sucker rod (8) and be located at oil well pump (9) top thermometer between have gap.
8. a kind of hot cleanout and paraffin removal of oil well Wellbore Temperature Field distribution tests tubing string as described in claim 1, it is characterised in that: described
The upper end lateral wall of oil pipe (4) be also connected with oil connection (3).
9. a kind of hot cleanout and paraffin removal of oil well Wellbore Temperature Field distribution tests tubing string as described in claim 1, it is characterised in that: described
The upper end of oil pipe (4) be provided with casing joint (2).
10. a kind of hot cleanout and paraffin removal of oil well Wellbore Temperature Field distribution test method, it is characterised in that:
Step 1) will successively be connected with memory type temperature meter one using oil pipe, memory type temperature meter two, memory type temperature meter three, take out
Oil pump, memory type temperature meter four, screen casing and silk plug tubing string, position is hung according to oil well pump, which is transferred into purpose position
It sets；
Step 2 opens the casing joint valve resting on the ground, to the fluid of injection heat, through oil jacket annulus downlink and underground liquid
Body mixing, pumping unit drive sucker rod that oil well pump is entered downhole fluid along oil pipe uplink from screen casing, pumping to ground from
Oil connection output；
Step 3) memory type temperature meter four, memory type temperature meter three, memory type temperature meter two, memory type temperature meter one continue respectively
Record measures the temperature of corresponding position；
Step 4) stops well, closes casing joint valve, then dismantles production wellhead, acts tubing string；
Step 5) plays back above-mentioned each memory type temperature meter temperature data, and it is corresponding to draw out different well depth positions according to the temperature of survey
Temperature curve, fitting can acquire hot cleanout and paraffin removal of oil well Wellbore Temperature Field distribution tests curve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811432291.6A CN109505589B (en) | 2018-11-28 | 2018-11-28 | Oil well hot washing paraffin removal shaft temperature field distribution testing method and pipe column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811432291.6A CN109505589B (en) | 2018-11-28 | 2018-11-28 | Oil well hot washing paraffin removal shaft temperature field distribution testing method and pipe column |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109505589A true CN109505589A (en) | 2019-03-22 |
| CN109505589B CN109505589B (en) | 2023-09-26 |
Family
ID=65750932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811432291.6A Active CN109505589B (en) | 2018-11-28 | 2018-11-28 | Oil well hot washing paraffin removal shaft temperature field distribution testing method and pipe column |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112065328A (en) * | 2019-06-10 | 2020-12-11 | 中国石油天然气股份有限公司 | Device and method for cleaning wax in oil pipe through hot washing |
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| US20030051881A1 (en) * | 2000-03-02 | 2003-03-20 | Vinegar Harold J. | Electro-hydraulically pressurized downhole valve actuator |
| US20080087434A1 (en) * | 2006-10-13 | 2008-04-17 | Ronald Wilen | Engine/steam generator with afterburner |
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| CN112065328A (en) * | 2019-06-10 | 2020-12-11 | 中国石油天然气股份有限公司 | Device and method for cleaning wax in oil pipe through hot washing |
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| Publication number | Publication date |
|---|---|
| CN109505589B (en) | 2023-09-26 |
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