CN108590584A - A kind of online paraffin removal unit of self energy steam automatic heating washing oil wells and method - Google Patents
A kind of online paraffin removal unit of self energy steam automatic heating washing oil wells and method Download PDFInfo
- Publication number
- CN108590584A CN108590584A CN201810292534.4A CN201810292534A CN108590584A CN 108590584 A CN108590584 A CN 108590584A CN 201810292534 A CN201810292534 A CN 201810292534A CN 108590584 A CN108590584 A CN 108590584A
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- oil
- steam
- gas body
- associated gas
- oil well
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- 239000003129 oil well Substances 0.000 title claims abstract description 273
- 238000005406 washing Methods 0.000 title claims abstract description 114
- 238000010438 heat treatment Methods 0.000 title claims abstract description 108
- 239000012188 paraffin wax Substances 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000001993 wax Substances 0.000 claims abstract description 70
- 238000012544 monitoring process Methods 0.000 claims abstract description 57
- 238000005238 degreasing Methods 0.000 claims abstract description 19
- 239000007789 gas Substances 0.000 claims description 186
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 60
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 26
- 238000002485 combustion reaction Methods 0.000 claims description 25
- 238000011010 flushing procedure Methods 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 13
- 239000003345 natural gas Substances 0.000 claims description 13
- 230000008859 change Effects 0.000 claims description 12
- 238000000605 extraction Methods 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 6
- 235000020681 well water Nutrition 0.000 claims description 6
- 239000002349 well water Substances 0.000 claims description 6
- 230000008676 import Effects 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- 238000010025 steaming Methods 0.000 claims description 2
- 239000012141 concentrate Substances 0.000 claims 1
- 239000000284 extract Substances 0.000 claims 1
- 238000000746 purification Methods 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 78
- 230000008569 process Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 230000008021 deposition Effects 0.000 description 3
- 240000002853 Nelumbo nucifera Species 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 2
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 2
- 244000273618 Sphenoclea zeylanica Species 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 238000004018 waxing Methods 0.000 description 2
- 208000034657 Convalescence Diseases 0.000 description 1
- 208000035126 Facies Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- E21B36/02—Heating, cooling, insulating arrangements for boreholes or wells, e.g. for use in permafrost zones using burners
- E21B36/025—Heating, cooling, insulating arrangements for boreholes or wells, e.g. for use in permafrost zones using burners the burners being above ground or outside the bore hole
Abstract
The invention discloses a kind of online paraffin removal unit of self energy steam automatic heating washing oil wells and methods, including oil well associated gas body separator, oil well associated gas body degreasing unit, heating steam unit and on-line monitoring wax removal system（21）The input terminal of the oil well associated gas body separator output end connection oil well associated gas body degreasing unit, wherein oil well associated gas body degreasing unit output end connection heating steam unit input terminal, the oil well associated gas body separator, oil well associated gas body degreasing unit, heating steam unit respectively with on-line monitoring wax removal system（21）Connection.The online paraffin removal unit of self energy steam automatic heating washing oil wells provided by the invention and method do not have any influence to human body and environment, belong to safe and environment-friendly, energy-saving product, meet safety and environmental protection requirement, deft design, small, light weight and cost is low, easy to remove, high degree of automation.
Description
Technical field
The invention belongs to oil well operation device and process technical fields, and in particular to a kind of automatic hot wash of self energy steam
The online paraffin removal unit of oil well and method.
Background technology
Oil well paraffinication has become a kind of FAQs, and waxing in production well accounts for 60% or more total well number, and wax deposition Severe well accounts for always
20% or more oil well number, wax deposition position is concentrated mainly at 400~700m of well depth, 2~7mm of thickness, is in loudspeaker from well head to underground
Shape is distributed.Oil field mainly uses at present plus three kinds of Paraffin Removal modes such as paraffin remover, strong magnetic preventing wax device, hot wash carry out wax control.Wax removal
Agent adds that difficulty is big and of high cost, and strong magnetic preventing wax device easily causes to magnetize to valve ball of pump etc., conventional wax removal vehicle hot wash liquid easily into
Entering stratum, causes oil layer pollution so that yield convalescence is long after thermal well flushing, influences crude output, though hollow stem hot wash can solve
Certainly formation contaminant problem, but hollow stem is costly, while service life is short, self energy hot wash is less than 5m to stratum daily output3 Oil
Well, Wax choked when hot wash, causes hot washing period short, the problem of hot wash effect difference.
Invention content
The purpose of the present invention is be directed to a kind of self energy steam automatic heating washing oil wells of problems of the prior art offer to exist
Line paraffin removal unit and method can effectively solve of high cost, expensive, Wax choked, cause hot washing period short, hot wash effect difference
Problem.
For this purpose, the present invention provides a kind of online paraffin removal unit of self energy steam automatic heating washing oil wells, including oil well associated gas
Body separator, oil well associated gas body degreasing unit, heating steam unit and on-line monitoring wax removal system, the oil well associated gas
Body separator output end connects the input terminal of oil well associated gas body degreasing unit, and wherein oil well associated gas body degreasing unit is defeated
The input terminal of outlet connection heating steam unit, the oil well associated gas body separator, add oil well associated gas body degreasing unit
Hot steam device is connect with on-line monitoring wax removal system respectively.
Preferably, further include for gas well, water supply well and by washing oil wells, the input terminal of the oil well associated gas body separator
Connection is connected by high-pressure hose by washing oil wells, the heating steam unit for gas well, the output end of the heating steam unit
It is also connected with water supply well.
Preferably, the oil well associated gas body separator include for gas well come air valve, oil well associated gas body separator,
Safety valve, oil well associated gas body separator oil extraction valve, oil well associated gas body separator air gauge control valve, oil well associated gas
Body separator air gauge and oil well associated gas body separator outlet valve, wherein oil well associated gas body separator are connect with for gas well
Pipeline be equipped with and carry out air valve for gas well, the oil well associated gas body separator top is equipped with safety valve, wherein oil well association
Gas separator bottom end is equipped with oil well associated gas body separator oil extraction valve, the oil well associated gas body separator and on-line monitoring
Oil well associated gas body separator air gauge control valve and oil well associated gas body separator air pressure are equipped between wax removal system successively
Table, the pipeline between the oil well associated gas body separator and oil well associated gas body degreasing unit is equipped with oil well associated gas body point
From device outlet valve.
Preferably, the oil well associated gas body degreasing unit includes that oil well associated gas body oil expeller, oil well associated gas body remove
Oily device air gauge control valve, oil well associated gas body oil expeller air gauge and oil well associated gas body oil expeller outlet valve, wherein
Oil well associated gas body oil expeller air gauge is equipped between oil well associated gas body oil expeller and on-line monitoring wax removal system successively to control
Pipeline between valve and oil well associated gas body oil expeller air gauge, wherein oil well associated gas body oil expeller and heating steam unit
It is equipped with oil well associated gas body oil expeller outlet valve.
Preferably, the heating steam unit includes combustion chamber, smokestack, heating steam oven, heating steam oven water pressure gauge control
Valve processed, heating steam oven water pressure gauge, heating steam oven drain valve door, inlet valve, feed water flow scale, vapor (steam) temperature table
Control valve, vapor (steam) temperature table and steam enter by well-flushing control valve, and the combustion chamber input terminal connects oil well associated gas body
Oil expeller outlet valve, wherein combustion chamber output end connection heating steam oven, the combustion chamber connects with on-line monitoring wax removal system
It connects, the smokestack is set to combustion chamber top, and the heating steam oven drain valve door is set to heating steam oven bottom end, institute
It states and is equipped with inlet valve and feed water flow scale between heating steam oven and water supply well successively, the heating steam oven and on-line monitoring
Heating steam oven steam pressure gauge control valve and heating steam oven steam pressure gauge are equipped between wax removal system successively, it is described to add
Vapor (steam) temperature table control valve and vapor (steam) temperature table are also equipped between hot steam stove and on-line monitoring wax removal system successively, it is described to add
Hot steam stove and entered by well-flushing control valve equipped with steam by the high-pressure hose between washing oil wells.
Preferably, the pipeline between the water supply well and heating steam oven is equipped with water supply well water supply valve.
Preferably, the on-line monitoring wax removal system and between gas well be equipped with monitoring by washing oil wells oil pressure and oil pressure valve
Door, wherein on-line monitoring wax removal system is used for Centralizing inspection by the oil pressure of washing oil wells, oil temperature and the parameter of electric machine, heating steam oven goes out
Mouth vapor (steam) temperature table parameter, heats steam stove heat steam oven steam pressure gauge parameter, joins into hot steam stove feed water flow scale
Number, the furnace temperature parameter of hot steam furnace heating chamber, hot steam furnace oil well accompanying gas oil expeller air gauge pressure parameter, oil well association
Gas separator oil well associated gas body separator air gauge parameter, the on-line monitoring wax removal internal system are additionally provided with remote monitoring
Terminal RTU, for realizing digitlization remote monitoring scene wax removal situation, online observation is by the work(figure and load change feelings of washing oil wells
Condition.
A kind of online dewaxing method of any one of them self energy steam automatic heating washing oil wells as above, includes the following steps：
Step 1：The natural gas extracted for gas well enters oil well associated gas body separator from carrying out air valve for gas well；
Step 2：Natural gas enters oil well associated gas body oil expeller, natural gas by oil well associated gas body separator outlet valve
It is purified in oil well associated gas body oil expeller；
Step 3：Purified natural gas imports combustion chambers burn heat release by oil well associated gas body oil expeller outlet valve；
Step 4：The self-produced water of water supply well is drawn into heating steam stove heat by water supply well water supply valve and inlet valve and generates steaming
Steam is input to from by washing oil casing by washing oil wells, steam by vapour since steam pressure is more than by washing oil wells casing pressure
Then from by the oil pipe discharge of washing oil wells, high-temperature steam makes to be dissolved by the wax dirt of washing oil wells tubing wall, and with by washing oil wells output
Liquid gives rise to ground and completes washing oil wells with hot steam wax removal；
Step 5：Be monitored online wax removal system by by the oil pressure of washing oil wells and oil temperature, the pressure and temperature that heats steam oven steam,
Pressure, the temperature of combustion chamber of the water supply flow of water supply well, the pressure of oil well associated gas body oil expeller, oil well associated gas body separator
It spends and realization Centralized Monitoring is concentrated in together by washing oil wells parameter of electric machine etc., and data are uploaded by remote monitoring terminal RTU, it is real
Now digitlization remote monitoring scene wax removal situation, online observation is by the work(figure and load change situation of washing oil wells.
Compared with the existing technology, the beneficial effects of the present invention are：
（1）The online paraffin removal unit of self energy steam automatic heating washing oil wells provided by the invention and method will be supplied using heating steam oven
As the energy, the self-produced water of water supply well is heated into steam as flushing fluid, vapor (steam) temperature is made to be maintained at 120 DEG C the natural gas that well generates
~140 DEG C, steam pressure is more than by washing oil wells casing pressure, steam is input to from by washing oil casing by washing oil wells, so
Come out afterwards from by washing oil wells oil pipe, quickly complete to by the wax removal of washing oil wells oil pipe, solve low output by washing oil wells knot
The very serious problem of wax；
（2）The online paraffin removal unit of self energy steam automatic heating washing oil wells provided by the invention and method wax removal process are in closing and complete
It carries out, is not influenced by the crude oil production of washing oil wells in automated procedure, it will not polluted reservoir, you can paraffin removal from oil well is rapidly completed,
Achieve the purpose that save fuel cost, flushing fluid freight charges and safety in production, while data are uploaded extremely using range monitoring terminal RTU
Oil field production figures platform realizes digitlization remote monitoring scene wax removal situation, and online observation is by the work(figure and load of washing oil wells
Lotus situation of change.Rational self energy hot wash plan is formulated, field production management level is improved, has adapted to oil field development；
（3）The online paraffin removal unit of self energy steam automatic heating washing oil wells provided by the invention and method be not any to human body and environment
Influence, belong to safe and environment-friendly, energy-saving product, meet safety and environmental protection requirement, deft design, small, light weight and cost is low,
It is easy to remove, high degree of automation, ensured the reliability of the online paraffin removal unit of self energy steam automatic heating washing oil wells, safety and
Practicability.
Description of the drawings
The structural schematic diagram of Fig. 1, the present invention；
The live wax removal technique schematic diagram of Fig. 2, the present invention.
Reference sign：
1- comes air valve, 2- oil well associated gas body separators, 3- safety valves, 4- oil well associated gas body separator draining valves for gas well
Door, 5- oil well associated gas body separator air gauge control valves, 6- oil well associated gas body separator outlet valves, 7- oil well associations
Gas oil expeller, 8- oil well associated gas body oil expeller air gauge control valves, 9- oil well associated gas body oil expeller outlet valves,
The combustion chambers 10-, 11- smokestacks, 12- heat steam oven, and 13- heats steam oven steam pressure gauge control valve, and 14- heats steam oven
Drain valve door, 15- inlet valves, 16- feed water flow scales, 17- water supply well water supply valves, 18- vapor (steam) temperature table control valves
Door, 19- steam enter by well-flushing control valve, and wax removal system is monitored online by washing oil wells oil pressure and oil temperature valve, 21- in 20-,
22- is removed for gas well, 23- water supply wells, 24- by washing oil wells, 25- oil well associated gas body separator air gauges, 26- oil well associated gas bodies
Oily device air gauge, 27- heat steam oven steam pressure gauge, and 28- vapor (steam) temperature tables, 29- is by washing oil wells oil pressure and oil temperature gauge.
Specific implementation mode
The specific embodiment of the invention is described with reference to the accompanying drawings and embodiments：
It should be noted that structure, ratio, the size etc. illustrated in this specification institute attached drawing, only coordinating specification institute
The content of announcement is not limited to the enforceable qualifications of the present invention so that those skilled in the art understands and reads,
The modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the effect of present invention can be generated and institute's energy
Under the purpose reached, should all still it fall in the range of disclosed technology contents can be covered.
Meanwhile cited such as "upper" in this specification, "lower", "left", "right", " centre " and " one " term, also
Only being illustrated for ease of narration, rather than to limit the scope of the invention, relativeness is altered or modified, in nothing
Under essence change technology contents, when being also considered as the enforceable scope of the present invention.
As shown in Figure 1 and 2, the invention discloses a kind of online paraffin removal units of self energy steam automatic heating washing oil wells, including oil well
Accompanying gas separator, oil well associated gas body degreasing unit, heating steam unit and on-line monitoring wax removal system 21, the oil
Well accompanying gas separator output end connects the input terminal of oil well associated gas body degreasing unit, wherein oil well associated gas body oil removing
The input terminal of the output end connection heating steam unit of device, the oil well associated gas body separator, oil well associated gas body remove
Oily device, heating steam unit are connect with on-line monitoring wax removal system 21 respectively.
As shown in Figure 1 and 2, it is preferred that further include for gas well 22, water supply well 23 and by washing oil wells 24, the oil well associated gas
The input terminal connection of body separator is connected by high-pressure hose by washing oil for gas well 22, the output end of the heating steam unit
Well 24, the heating steam unit are also connected with water supply well 23.
As shown in Figure 1 and 2, it is preferred that the oil well associated gas body separator includes coming air valve 1, oil well companion for gas well
Raw gas separator 2, safety valve 3, oil well associated gas body separator oil extraction valve 4, oil well associated gas body separator air gauge control
Valve 5, oil well associated gas body separator air gauge 25 and oil well associated gas body separator outlet valve 6 processed, wherein oil well association
The pipeline that gas separator 2 is connect with for gas well 22 is equipped with comes air valve 1, the oil well associated gas body separator 2 for gas well
Top is equipped with safety valve 3, and wherein 2 bottom end of oil well associated gas body separator is equipped with oil well associated gas body separator oil extraction valve 4, institute
It states and is equipped with oil well associated gas body separator air gauge successively between oil well associated gas body separator 2 and on-line monitoring wax removal system 21
Control valve 5 and oil well associated gas body separator air gauge 25, the oil well associated gas body separator 2 and oil well associated gas body remove
Pipeline between oily device is equipped with oil well associated gas body separator outlet valve 6.
As shown in Figure 1 and 2, it is preferred that the oil well associated gas body degreasing unit includes oil well associated gas body oil expeller 7, oil
Well accompanying gas oil expeller air gauge control valve 8, oil well associated gas body oil expeller air gauge 26 and oil well associated gas body oil removing
It is equipped with oil well associated gas successively between device outlet valve 9, wherein oil well associated gas body oil expeller 7 and on-line monitoring wax removal system 21
Body oil expeller air gauge control valve 8 and oil well associated gas body oil expeller air gauge 26, wherein oil well associated gas body oil expeller 7 with
The pipeline heated between steam unit is equipped with oil well associated gas body oil expeller outlet valve 9.
As shown in Figure 1 and 2, it is preferred that the heating steam unit include combustion chamber 10, smokestack 11, heating steam oven 12,
Heat steam oven steam pressure gauge control valve 13, heating steam oven steam pressure gauge 27, heating steam oven drain valve door
14, inlet valve 15, feed water flow scale 16, vapor (steam) temperature table control valve 18, vapor (steam) temperature table 28 and steam enter by well-flushing
Control valve 19,10 input terminal of the combustion chamber connect oil well associated gas body oil expeller outlet valve 9, and wherein combustion chamber 10 exports
End connection heating steam oven 12, the combustion chamber 10 are connect with on-line monitoring wax removal system 21, and the smokestack 11 is set to burning
10 top of room, the heating steam oven drain valve door 14 are set to 12 bottom end of heating steam oven, the heating steam oven 12
It is equipped with inlet valve 15 and feed water flow scale 16, the heating steam oven 12 and on-line monitoring wax removal successively between water supply well 23
Heating steam oven steam pressure gauge control valve 13 and heating steam oven steam pressure gauge 27 are equipped between system 21 successively, it is described
It heats and is also equipped with vapor (steam) temperature table control valve 18 and vapor (steam) temperature successively between steam oven 12 and on-line monitoring wax removal system 21
Table 28, the heating steam oven 12 and is entered equipped with steam by well-flushing control valve by the high-pressure hose between washing oil wells 24
19。
As shown in Figure 1 and 2, it is preferred that the pipeline between the water supply well 23 and heating steam oven 12 is supplied equipped with water supply well
Penstock 17.
As shown in Figure 1 and 2, it is preferred that the on-line monitoring wax removal system 21 and between gas well 22 be equipped with monitoring by washing oil
Well oil pressure 29 and oil pressure valve 20, wherein on-line monitoring wax removal system 21 is used for Centralizing inspection by the oil pressure of washing oil wells 24, oil temperature
And the parameter of electric machine, 12 outlet steam temperature table of heating steam oven, 28 parameter, heating steam oven 12 heat steam oven steam pressure gauge
27 parameters, into 12 feed water flow scale of hot steam stove, 16 parameter, hot steam stove 12 heats the furnace temperature parameter of room, 12 oil of hot steam stove
26 pressure parameter of well accompanying gas oil expeller air gauge, 2 oil well associated gas body separator air gauge of oil well associated gas body separator
25 parameters are additionally provided with remote monitoring terminal RTU inside the on-line monitoring wax removal system 21, for realizing digitlization remote monitoring
Live wax removal situation, online observation is by the work(figure and load change situation of washing oil wells 24.
As shown in Figure 1 and 2, the online dewaxing method of a kind of any one of them self energy steam automatic heating washing oil wells as above, including
Following steps：
Step 1：The natural gas extracted for gas well 22 carrys out air valve 1 into oil well associated gas body separator 2 from for gas well；
Step 2：Natural gas enters oil well associated gas body oil expeller 7 by oil well associated gas body separator outlet valve 6, naturally
Gas purifies in oil well associated gas body oil expeller 7；
Step 3：Purified natural gas imports 10 combustion heat release of combustion chamber by oil well associated gas body oil expeller outlet valve 9；
Step 4：23 self-produced water of water supply well is drawn into heating steam oven 12 by water supply well water supply valve 17 and inlet valve 15 and adds
Heat generates steam, since steam pressure is more than by 24 casing pressure of washing oil wells, by steam from by 24 casing of washing oil wells be input to by
In washing oil wells 24, for steam then from by the oil pipe discharge of washing oil wells 24, high-temperature steam keeps the wax dirt by 24 tubing wall of washing oil wells molten
Change, and washing oil wells with hot steam wax removal is completed with ground is given rise to by 24 production fluid of washing oil wells；
Step 5：Wax removal system 21 is monitored online will be by the oil pressure of washing oil wells 24 and oil temperature, the pressure and temperature that heat steam oven 12
Degree, the water supply flow of water supply well 23, the pressure of oil well associated gas body oil expeller, the pressure of oil well associated gas body separator, burning
The temperature of room 10 and realization Centralized Monitoring is concentrated in together by 24 parameter of electric machine of washing oil wells etc., and passes through remote monitoring terminal RTU
Data are uploaded, realize digitlization remote monitoring scene wax removal situation, online observation is by the work(figure and load change feelings of washing oil wells 24
Condition.
The Attention Points that the online paraffin removal unit of self energy steam automatic heating washing oil wells of the present invention uses：
1）When arranging well site, the online paraffin removal unit of self energy steam automatic heating washing oil wells should be away from by well-flushing 24 and for gas well（22）5m with
On, and cannot be identical as wind facies, it is preferably put into right angle, in case well head gas leakage is caught fire；
2）The outlet of heating steam oven 12 is connected with high-pressure refractory hose by quick coupling with by the delivery connection of washing oil wells 24；
Heating 12 filler of steam oven is connected with high-pressure hose by quick coupling with 23 water supply line of water supply well, passes through well site water source
23 give heating 12 topped up with water of steam oven；
3）The gas production device for gas well 22 is opened, associated gas enters oil well associated gas body separator 2 and oil well associated gas body oil expeller
7, purified associated gas enters 10 early gate of combustion chamber of heating steam oven 12；
4）On-line monitoring wax removal system 21 is opened, monitoring is by 24 oil pressure of washing oil wells and oil temperature, heating 12 steam pressure temperature of steam oven
Degree, the water supply flow of water supply well 23, the pressure of oil well associated gas body oil expeller, the pressure of oil well associated gas body separator, burning
The temperature of room 10 and by 24 parameter of electric machine of washing oil wells etc., makes its value in normal range (NR), when not reaching normal value, is transferred to normal
Value, opens simultaneously remote monitoring terminal RTU, and debugging is normal；
5）It opens gas circuit valve before igniting successively in the correct order, and checks the leakproofness of gas circuit, igniting must be in combustion chamber
It is carried out in the state of no gas, after igniting, control valve keeps flame combustion normal；
6）It will be stopped by 24 pumping unit of washing oil wells, and when heating 12 vapor (steam) temperature of steam oven reaches 120 DEG C~140 DEG C, open steam
Into by well-flushing control valve 19, steam is entered by high-pressure refractory hose by 24 casing of washing oil wells, is started high-temperature steam and is boiled in a covered pot over a slow fire well
10~20min, this process water amount are controlled in 1~2m3, pumping unit production is then started, well is discharged in the wax dissolved in pit shaft
Cylinder, this process used time 1~2h, 5~6m of water consumption3, monitored by washing oil wells by paying attention to observing in on-line monitoring wax removal system 21
24 coming oil pressure and temperatures heat 12 steam pressure of steam oven and temperature, the pressure of supply water of water supply well 23, the water supply of water supply well 23
Flow, 2 pressure of oil well associated gas body oil expeller 7 and oil well associated gas body separator, in combustion chamber 10 furnace temperature and working condition and
Pumping unit working current value changes, and when reaching 55 DEG C by 24 oil outlet temperature of washing oil wells, the outlet of heating steam oven 12 is adjusted and steams
Stripping temperature, so that wellhead temperature keeps stablizing, guarantee, can be in situ by observation by washing oil wells 24 by 24 abundant de-waxing of washing oil wells
The parameters such as motor current value reach situation of change, or are observed online by the work(figure and load of washing oil wells 24 by remote monitoring terminal RTU
Lotus situation of change, it can be determined that by 24 wax removal situation of washing oil wells；
7）High-temperature steam hot wash paraffin removal from oil well process temperature is high, the time is longer, and light composition during hot wash in pit shaft is easy
Volatilization, therefore to heavy oil wells, thinner appropriate is added in time after hot wash to reduce the load fluctuation of pumping unit, while in heat
When washing oil wells, surface water supply amount can be suitably increased, improves quantity of steam；
8）Well-flushing terminates, and, to remove excess oil, should be kept to carrying out pipeline purging by the ground well-flushing flow and fuel gas flow path of washing oil wells 24
Equipment cleaning after the completion, then dismantles connection pipeline, withdraws well site.
The limitation of the online paraffin removal unit maximum temperature of self energy steam automatic heating washing oil wells of the present invention and function confirm：Self energy is steamed
Ranging from 0~200 DEG C of the design temperature of the online paraffin removal unit of vapour automatic heating washing oil wells, i.e., 200 DEG C are the automatic hot wash of self energy steam
The working limit temperature of the online paraffin removal unit heat exchanger of oil well controls 10 air source of burner, to ensure to exchange heat with heat exchange temperature
Device is no more than limiting temperature in the process of running, and the operating temperature range of the online paraffin removal unit of self energy steam automatic heating washing oil wells is set
It is set to 140 DEG C（Deviation ± 5 DEG C）, i.e.,：At 0~140 DEG C, solenoid valve is energized state, and burner 10 burns, when self energy steam from
When the operating temperature of the online paraffin removal unit of dynamic hot wash oil well is equal to 145 DEG C, solenoid valve is off-position, and main fire, which is ceased fire, to burn；When
When the operating temperature of the online paraffin removal unit of self energy steam automatic heating washing oil wells is equal to 135 DEG C, main fire starts.
Slotting ground wire borer, self energy steam automatic heating washing oil wells are provided on the online paraffin removal unit of self energy steam automatic heating washing oil wells
Online paraffin removal unit is before access power supply, it is necessary to if first ground wire borer is pounded into damp ground 50cm depth hereinafter, soil layer drying,
Enough water-soaked stratum must be used, connect with underground moist layer, just can guarantee the safety effect of ground wire.
The online paraffin removal unit of self energy steam automatic heating washing oil wells provided by the invention and method will be for using heating steam oven
As the energy, the self-produced water of water supply well is heated into steam as flushing fluid, vapor (steam) temperature is made to be maintained at 120 the natural gas that gas well generates
DEG C~140 DEG C, steam pressure is more than by washing oil wells casing pressure, and steam is input to from by washing oil casing by washing oil wells,
Then come out from by washing oil wells oil pipe, quickly complete to by the wax removal of washing oil wells oil pipe, solve low output by washing oil wells
The very serious problem of wax deposition.
The online paraffin removal unit of self energy steam automatic heating washing oil wells provided by the invention and method wax removal process be in closing and
It carries out, is not influenced by the crude oil production of washing oil wells in full-automatic process, it will not polluted reservoir, you can it is clear that oil well is rapidly completed
Wax has achieved the purpose that save fuel cost, flushing fluid freight charges and safety in production, while having uploaded number using range monitoring terminal RTU
According to oil field production figures platform, rational self energy hot wash plan is formulated, field production management level is improved, has adapted to oil
Field is developed.
The online paraffin removal unit of self energy steam automatic heating washing oil wells provided by the invention and method do not appoint human body and environment
What is influenced, and is belonged to safe and environment-friendly, energy-saving product, is met safety and environmental protection requirement, deft design, small, light weight and cost
Low, easy to remove, high degree of automation has ensured reliability, the safety of the online paraffin removal unit of self energy steam automatic heating washing oil wells
Property and practicability.
The preferred embodiment for the present invention is explained in detail above in conjunction with attached drawing, but the present invention is not limited to above-mentioned implementations
Mode within the knowledge of a person skilled in the art can also be without departing from the purpose of the present invention
It makes a variety of changes.
Many other changes and remodeling can be made by not departing from the spirit and scope of the present invention.It should be appreciated that the present invention is not
It is limited to specific embodiment, the scope of the present invention is defined by the following claims.
Claims (8)
1. a kind of online paraffin removal unit of self energy steam automatic heating washing oil wells, it is characterised in that：It detaches and fills including oil well associated gas body
It sets, oil well associated gas body degreasing unit, heat steam unit and on-line monitoring wax removal system（21）, the oil well associated gas body point
From the input terminal that device output end connects oil well associated gas body degreasing unit, the wherein output end of oil well associated gas body degreasing unit
The input terminal of connection heating steam unit, the oil well associated gas body separator, oil well associated gas body degreasing unit, heating are steamed
Vapour device respectively with on-line monitoring wax removal system（21）Connection.
2. a kind of online paraffin removal unit of self energy steam automatic heating washing oil wells according to claim 1, it is characterised in that：Also wrap
It includes for gas well（22）, water supply well（23）With by washing oil wells（24）, the input terminal connection confession of the oil well associated gas body separator
Gas well（22）, the output end for heating steam unit is by high-pressure hose connection by washing oil wells（24）, the heating steam dress
It sets and is also connected with water supply well（23）.
3. a kind of online paraffin removal unit of self energy steam automatic heating washing oil wells according to claim 2, it is characterised in that：It is described
Oil well associated gas body separator includes carrying out air valve for gas well（1）, oil well associated gas body separator（2）, safety valve（3）, oil
Well accompanying gas separator oil extraction valve（4）, oil well associated gas body separator air gauge control valve（5）, oil well associated gas body
Separator air gauge（25）With oil well associated gas body separator outlet valve（6）, wherein oil well associated gas body separator（2）With confession
Gas well（22）The pipeline of connection is equipped with carrys out air valve for gas well（1）, the oil well associated gas body separator（2）Top is equipped with peace
Full valve（3）, wherein oil well associated gas body separator（2）Bottom end is equipped with oil well associated gas body separator oil extraction valve（4）, the oil
Well accompanying gas separator（2）With on-line monitoring wax removal system（21）Between successively be equipped with oil well associated gas body separator air gauge
Control valve（5）With oil well associated gas body separator air gauge（25）, the oil well associated gas body separator（2）With oil well association
Pipeline between gas degreasing unit is equipped with oil well associated gas body separator outlet valve（6）.
4. a kind of online paraffin removal unit of self energy steam automatic heating washing oil wells according to claim 2, it is characterised in that：It is described
Oil well associated gas body degreasing unit includes oil well associated gas body oil expeller（7）, oil well associated gas body oil expeller air gauge control valve
Door（8）, oil well associated gas body oil expeller air gauge（26）With oil well associated gas body oil expeller outlet valve（9）, wherein oil well companion
Angry body oil expeller（7）With on-line monitoring wax removal system（21）Between successively be equipped with oil well associated gas body oil expeller air gauge control
Valve（8）With oil well associated gas body oil expeller air gauge（26）, wherein oil well associated gas body oil expeller（7）With heating steam unit
Between pipeline be equipped with oil well associated gas body oil expeller outlet valve（9）.
5. a kind of online paraffin removal unit of self energy steam automatic heating washing oil wells according to claim 4, it is characterised in that：It is described
It includes combustion chamber to heat steam unit（10）, smokestack（11）, heating steam oven（12）, heating steam oven water pressure gauge control valve
（13）, heating steam oven steam pressure gauge（27）, heating steam oven drain valve door（14）, inlet valve（15）, feed water flow
Scale（16）, vapor (steam) temperature table control valve（18）, vapor (steam) temperature table（28）Enter by well-flushing control valve with steam（19）, institute
State combustion chamber（10）Input terminal connects oil well associated gas body oil expeller outlet valve（9）, wherein combustion chamber（10）Output end connects
Heat steam oven（12）, the combustion chamber（10）With on-line monitoring wax removal system（21）Connection, the smokestack（11）It is set to combustion
Burn room（10）Top, the heating steam oven drain valve door（14）It is set to heating steam oven（12）Bottom end, the heating
Steam oven（12）With water supply well（23）Between successively be equipped with inlet valve（15）With feed water flow scale（16）, the heating steam oven
（12）With on-line monitoring wax removal system（21）Between successively be equipped with heating steam oven steam pressure gauge control valve（13）And heating
Steam oven steam pressure gauge（27）, the heating steam oven（12）With on-line monitoring wax removal system（21）Between also successively be equipped with steam
Stripping temperature table control valve（18）With vapor (steam) temperature table（28）, the heating steam oven（12）With by washing oil wells（24）Between height
Pressure hose enters equipped with steam by well-flushing control valve（19）.
6. a kind of online paraffin removal unit of self energy steam automatic heating washing oil wells according to claim 5, it is characterised in that：It is described
Water supply well（23）With heating steam oven（12）Between pipeline be equipped with water supply well water supply valve（17）.
7. a kind of online paraffin removal unit of self energy steam automatic heating washing oil wells according to claim 6, it is characterised in that：It is described
Wax removal system is monitored online（21）With for gas well（22）Between be equipped with monitoring by washing oil wells oil pressure（29）With oil pressure valve（20）,
Middle on-line monitoring wax removal system（21）For Centralizing inspection by washing oil wells（24）Oil pressure, oil temperature and the parameter of electric machine, heat steam
Stove（12）Outlet steam temperature table（28）Parameter heats steam oven（12）Heat steam oven steam pressure gauge（27）Parameter enters
Hot steam stove（12）Feed water flow scale（16）Parameter, hot steam stove（12）Heat the furnace temperature parameter of room, hot steam stove（12）Oil well
Accompanying gas oil expeller air gauge（26）Pressure parameter, oil well associated gas body separator（2）Oil well associated gas body separator air pressure
Table（25）Parameter, the on-line monitoring wax removal system（21）Inside is additionally provided with remote monitoring terminal RTU, for realizing that digitlization is remote
Range monitoring scene wax removal situation, online observation is by washing oil wells（24）Work(figure and load change situation.
8. a kind of such as online dewaxing method of claim 1~7 any one of them self energy steam automatic heating washing oil wells, feature exist
In including the following steps：
Step 1：It extracts for gas well（22）Natural gas carry out air valve from for gas well（1）Into oil well associated gas body separator
（2）；
Step 2：Natural gas passes through oil well associated gas body separator outlet valve（6）Into oil well associated gas body oil expeller（7）,
Natural gas is in oil well associated gas body oil expeller（7）Middle purification；
Step 3：Purified natural gas passes through oil well associated gas body oil expeller outlet valve（9）Import combustion chamber（10）Burning
Heat release；
Step 4：Water supply well（23）Self-produced water passes through water supply well water supply valve（17）And inlet valve（15）It is drawn into heating steam
Stove（12）Heating generates steam, since steam pressure is more than by washing oil wells（24）Casing pressure, by steam from by washing oil wells（24）
Casing is input to by washing oil wells（24）Interior, steam is then from by washing oil wells（24）Oil pipe discharge, high-temperature steam makes by washing oil wells
（24）The wax dirt of tubing wall dissolves, and with by washing oil wells（24）Production fluid gives rise to ground and completes washing oil wells with hot steam wax removal；
Step 5：Wax removal system is monitored online（21）It will be by washing oil wells（24）Oil pressure and oil temperature, heating steam oven（12）Steaming
Steam pressure and temperature, water supply well（23）Water supply flow, the pressure of oil well associated gas body oil expeller, oil well associated gas body separator
Pressure, combustion chamber（10）Temperature and by washing oil wells（24）The parameter of electric machine concentrates in together realization Centralized Monitoring, and by remote
Range monitoring terminal RTU uploads data, realizes digitlization remote monitoring scene wax removal situation, online observation is by the work(figure of washing oil wells 24
And load change situation.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810292534.4A CN108590584B (en) | 2018-03-30 | 2018-03-30 | Online paraffin removal device and method for self-energy steam automatic hot washing oil well |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810292534.4A CN108590584B (en) | 2018-03-30 | 2018-03-30 | Online paraffin removal device and method for self-energy steam automatic hot washing oil well |
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| CN108590584B CN108590584B (en) | 2024-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN208236384U (en) * | 2018-03-30 | 2018-12-14 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of online paraffin removal unit of self energy steam automatic heating washing oil wells |
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2018
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB511768A (en) * | 1937-11-19 | 1939-08-24 | Mark Benson | Improvements in or relating to extraction of petroleum |
| US20130014950A1 (en) * | 2011-07-14 | 2013-01-17 | Dickinson Theodore Elliot | Methods of Well Cleanout, Stimulation and Remediation and Thermal Convertor Assembly for Accomplishing Same |
| CN204716204U (en) * | 2015-05-05 | 2015-10-21 | 濮阳中油名辉实业开发中心 | Digitlization oilfield superconducting hot-washing paraffin-remover |
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| CN108590584B (en) | 2024-01-23 |
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Effective date of registration: 20201203 Address after: 100007 Dongcheng District, Dongzhimen, China, North Street, No. 9 Oil Mansion, No. Applicant after: CHINA NATIONAL PETROLEUM Corp. Applicant after: CHINA NATIONAL PETROLEUM CORPORATION CHUANQING DRILLING ENGINEERING Co. Address before: 710018 Shaanxi city of Xi'an province Weiyang District four road Fengcheng Changqing Technology Building Applicant before: CNPC CHUANQING DRILLING ENGINEERING COMPANY LIMITED ENGINEERING TECHNOLOGY Research Institute |
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