CN106948798A - A kind of oil well open type heat tracing circulation system and its operation method - Google Patents
A kind of oil well open type heat tracing circulation system and its operation method Download PDFInfo
- Publication number
- CN106948798A CN106948798A CN201610860349.1A CN201610860349A CN106948798A CN 106948798 A CN106948798 A CN 106948798A CN 201610860349 A CN201610860349 A CN 201610860349A CN 106948798 A CN106948798 A CN 106948798A
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- heat
- water
- oil
- heat tracing
- open type
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000003129 oil well Substances 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 104
- 235000019198 oils Nutrition 0.000 claims abstract description 49
- 238000005065 mining Methods 0.000 claims abstract description 13
- 235000019476 oil-water mixture Nutrition 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims description 29
- 244000273618 Sphenoclea zeylanica Species 0.000 claims description 27
- 239000012071 phase Substances 0.000 claims description 22
- 238000009413 insulation Methods 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 239000008346 aqueous phase Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 33
- 239000010779 crude oil Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/34—Arrangements for separating materials produced by the well
- E21B43/40—Separation associated with re-injection of separated materials
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The present invention relates to oil mining field, more particularly to a kind of high solidifying oil, heavy crude reservoir rod-pumped well, the continuous instlated tubular open type heat tracing circulation system of electric pump well and its operation method.Including circulation heat tracing mining system and oil return gathering system, circulation heat tracing mining system and oil return gathering system two ends and company, circulation heat tracing mining system include heat-insulating pipeline, water knockout drum and oil-water mixture outlet, and water knockout drum is connected through a screw thread with heat-insulating pipeline.This oil well open type heat tracing circulation system, can be widely applied in high solidifying oil, heavy crude reservoir water mixing heat tracing exploitation production technology, can save a large amount of electric tracing costs of winning at present.
Description
Technical field
The present invention relates to oil mining field, more particularly to a kind of high solidifying oil, heavy crude reservoir rod-pumped well, electric pump well are continuous
Instlated tubular open type heat tracing circulation system and its operation method.
Background technology
Underground heat tracing exploitation is needed during high solidifying oil, Development of Viscous Crude Oil at present, exactly using circulating companion under hot well
Hot crude oil extraction.Down-hole waterflooding heat tracing is Double-sleeve independence closed cycle in the prior art, fails to mix with underground production fluid
To together into ground oil return gathering system.It is primarily due to the multiple tubing string in underground and can not be oriented pass through tube wall and do not fall
Stream, causes the production technology ground installation various numerous and diverse, there is many potential safety hazards, while also constraining current oil field economize on electricity hair
Open up space.
The content of the invention
The problem of present invention is solved is to provide a kind of oil well open type heat tracing circulation system and its operation method
In order to solve the above technical problems, one aspect of the present invention is：
A kind of oil well open type heat tracing circulation system, including circulation heat tracing mining system and oil return gathering system, circulation heat tracing exploitation
System and oil return gathering system two ends and company, circulation heat tracing mining system go out including heat-insulating pipeline, water knockout drum and oil-water mixture
Mouthful, water knockout drum is connected through a screw thread with heat-insulating pipeline.
The heat-insulating pipeline is heat-insulated inner sleeve or heat-insulated hollow stem；
Wherein, heat-insulated inner sleeve is that the inner tube with thermal insulation layer is placed in hollow stem,
Heat-insulated hollow stem is outer surface with thermal insulation layer and inside is hollow long tube.
The water knockout drum is one-way sealing structure, is made up of housing, outer sleeve, point water short circuit and the pressure ring that automatically resets；Its
In, housing and outer sleeve simultaneously connect, between form annular space,
Divide water short circuit to be arranged in housing to be interlinked to the outside with housing by the pressure ring that automatically resets, point water short circuit is provided with several point of water
Mouthful, outer sleeve is provided with several delivery ports.
The oil return gathering system is successively by water mixing heating furnace, water mixing tank, three phase separator, outer defeated tank and outer defeated heating furnace
Connection composition,
Wherein, heat-insulating pipeline is connected with the low pressure water pipeline after being pressurized and heat, and oil-water mixture outlet is straight with three phase separator
Connect in succession.
Water mixing pump is provided between heating furnace and water mixing tank, output pump is provided between outer defeated tank and outer defeated heating furnace.It is described to mix
Water heating furnace and outer defeated inside heating furnace are coil arrangement.
A kind of oil well open type heat tracing circulation system operation method, is first heated to 75-85 degree by low pressure water mixing by heating furnace,
Enter heat-insulating pipeline after being pressurized by booster pump, be sent to by underground water knockout drum in oil pipe, instlated tubular is passed through after water oil mixing
The fluid swivels of road both sides are exported into oil-water mixture, into three phase separator, are separated water oil through three phase separator,
Aqueous phase formation low pressure water enters water mixing tank, and entering water mixing after being pressurized through water mixing pump heats stove heat, forms water circulation, and oil phase enters
In outer defeated tank, gas phase portion therein is emitted into gas concentration unit from outer defeated tank upper end gas port, and oil phase is pressurized by output pump
Afterwards by outer defeated heating stove heat, combination station of gathering and transportation big pot of oil storage device is then sent to.
The heat-insulating pipeline is heat-insulated inner sleeve or heat-insulated hollow stem；
Wherein, heat-insulated inner sleeve is that the inner tube with thermal insulation layer is placed in hollow stem, after hot water enters underground through heat-insulated inner sleeve
（Inner tube and the water of hollow stem annular space do not flow）, realize that downhole crude open type mixes heat tracing into oil pipe through water knockout drum；
Heat-insulated hollow stem is outer surface with thermal insulation layer and inside is hollow long tube, and hot water enters underground through heat-insulated hollow stem
When, oil pipe is directly entered by water knockout drum；Open type mixing heat tracing is carried out to downhole crude.
The beneficial effects of the invention are as follows：This oil well open type heat tracing circulation system, can be widely applied to high solidifying oil, heavy crude reservoir
In water mixing heat tracing exploitation production technology, a large amount of electric tracing costs of winning at present can be saved.The system can realize circulating hot water
Mixed in underground with stratum production fluid, together given rise to ground and enter gathering system, be then dehydrated and heat again
（70-95℃）Circulation production.
Brief description of the drawings
Fig. 1 is intended to for the structural diagrams of the present invention；
Fig. 2 is water distributor structure schematic diagram；
1st, booster pump；2nd, heat-insulating pipeline；3rd, water knockout drum；4th, heating furnace；5th, water mixing tank；6th, three phase separator；7th, outer defeated tank；8、
Outer defeated heating furnace；9th, water mixing pump；10th, output pump；11st, oil-water mixture is exported；31st, housing；32nd, outer sleeve；33rd, divide water short
Connect；34th, automatically reset pressure ring.
Specific implementation method
In order to more clearly state the present invention, the present invention is further described below in conjunction with the accompanying drawings.
Embodiment one
A kind of oil well open type heat tracing circulation system, including circulation heat tracing mining system and oil return gathering system, it is characterised in that follow
Ring heat tracing mining system and oil return gathering system two ends and company, circulation heat tracing mining system include heat-insulating pipeline 2, the and of water knockout drum 3
Oil-water mixture outlet 11, water knockout drum 3 is connected through a screw thread with heat-insulating pipeline 2.
The heat-insulating pipeline 2 is heat-insulated inner sleeve or heat-insulated hollow stem；
Wherein, heat-insulated inner sleeve is that the inner tube with thermal insulation layer is placed in hollow stem,
Heat-insulated hollow stem is outer surface with thermal insulation layer and inside is hollow long tube.
The water knockout drum 3 is one-way sealing structure, by housing 31, outer sleeve 32, point water short circuit 33 and the pressure ring that automatically resets
34 compositions；Wherein, housing 31 and outer sleeve 32 and connect, between form annular space,
Divide water short circuit 33 to be arranged in housing 31 to be interlinked to the outside with housing 31 by the pressure ring 34 that automatically resets, a point water short circuit 33 is provided with
Several bleeders, outer sleeve 32 is provided with several delivery ports.
The oil return gathering system successively by water mixing heating furnace 4, water mixing tank 5, three phase separator 6, outer defeated tank 7 and it is outer it is defeated plus
The hot connection of stove 8 composition,
Wherein, heat-insulating pipeline 2 is connected with water mixing heating furnace 4 by booster pump 1, oil-water mixture outlet 11 and three phase separator 6
It is directly connected to.
Water mixing pump 9 is provided between heating furnace 4 and water mixing tank 5, output pump 10 is provided between outer defeated tank 7 and outer defeated heating furnace 8.
The water mixing heating furnace and outer defeated inside heating furnace are coil arrangement.
Oil well open type heat tracing circulation system operation method, is first heated to 75-85 degree by the heated stove 4 of low pressure water mixing, passes through
Booster pump 1 enters heat-insulating pipeline 2 after being pressurized, and is sent to by underground water knockout drum 3 in oil pipe, and heat-insulating pipeline is passed through after water oil mixing
The fluid swivels of 2 both sides enter oil-water mixture outlet 11, into three phase separator 6, are divided water oil through three phase separator 6
From, aqueous phase formation low pressure water enters water mixing tank 5, is heated after being pressurized through water mixing pump 9 and by water mixing heating furnace 4, forms water circulation,
Oil phase enters in outer defeated tank 7, and gas phase portion therein is emitted into gas concentration unit from the outer defeated upper end gas port of tank 7, and oil phase passes through
Heated after output pump 10 is pressurized and by outer defeated heating furnace 8（Because being high solidifying oil, high 50 DEG C or so of viscous crude freezing point, it is necessary to heat
It could flow, otherwise crude oil, which will solidify, to convey）Afterwards, it is delivered to combination station of gathering and transportation big pot of oil storage device.
The heat-insulating pipeline 2 is heat-insulated inner sleeve or heat-insulated hollow stem；
Wherein, heat-insulated inner sleeve is that the inner tube with thermal insulation layer is placed in hollow stem, after hot water enters underground through heat-insulated inner sleeve
（Inner tube and the water of hollow stem annular space do not flow）, downhole crude open type heat tracing is realized into oil pipe through water knockout drum；
Heat-insulated hollow stem is outer surface with thermal insulation layer and inside is hollow long tube, and hot water enters underground through heat-insulated hollow stem
When, oil pipe is directly entered by water knockout drum；Open type heat tracing is carried out to downhole crude.
The heat-insulated inner sleeve wherein used for：External diameter 25mm, internal diameter 19mm, outer wall has the inner tube of thermal insulation layer；It is put into external diameter
In 42mm, internal diameter 31mm hollow stem；Hot water enters underground through heat-insulated inner tube, enters oil by the one-way sealing effect of water knockout drum
Pipe, realizes downhole crude open type heat tracing；
Heat-insulated hollow stem：External diameter 36mm, internal diameter 26mm；There is thermal insulation layer outer surface；Inside need not be put into inner sleeve；Hot water pass through every
Hot hollow stem enters underground, enters oil pipe by the one-way sealing effect of water knockout drum；Open type heat tracing is carried out to downhole crude.
Water knockout drum operation principle：Water knockout drum actually plays a part of ball-and-seat.It is by housing 31, outer sleeve 32, Fen Shui
Short circuit 33, the pressure ring 34 that automatically resets are constituted.In use, water knockout drum is threadedly attached on instlated tubular, the heat in instlated tubular
Water is entered in point water short circuit 33 by the water inlet of water knockout drum, enters each bleeder by the annular space in point water short circuit 33
（It is staggered 8 circular holes of φ 5 of two rows with 22.5 degree of angles）, the pressure ring 34 that will be automatically reset in the presence of heat hydraulic pressure top is opened
Into in outer sleeve 32 and the annular space of housing 31, pass through the delivery port of outer sleeve 32（8 circular holes of φ 10）Into hollow stem and oil
In annular space between pipe, and enter together with production fluid in oil return system.It is automatically multiple when hot water stops supply suddenly
Position pressure ring 34 is fallen back under gravity and the effect of system back pressure on the sealed groove on point water short circuit 33, by the pressure ring 34 that automatically resets
Lower end wedge surface formation sealing, realizes that empty bar hot water passes through tube wall one-way sealing.
The embodiment to the invention is described in detail above, but the content is only the preferable of the invention
Embodiment, it is impossible to be considered as the practical range for limiting the present invention.All impartial changes made according to the invention scope with
Improve etc., all should still it belong within this patent covering scope.
Claims (8)
1. a kind of oil well open type heat tracing circulation system, including circulation heat tracing mining system and oil return gathering system, it is characterised in that
Heat tracing mining system and oil return gathering system two ends and company are circulated, circulation heat tracing mining system includes heat-insulating pipeline（2）, water knockout drum
（3）With oil-water mixture outlet（11）, water knockout drum（3）With heat-insulating pipeline（2）It is connected through a screw thread.
2. oil well open type heat tracing circulation system according to claim 1, it is characterised in that the heat-insulating pipeline（2）For every
Hot inner sleeve or heat-insulated hollow stem；
Wherein, heat-insulated inner sleeve is that the inner tube with thermal insulation layer is placed in hollow stem,
Heat-insulated hollow stem is outer surface with thermal insulation layer and inside is hollow long tube.
3. oil well open type heat tracing circulation system according to claim 1, it is characterised in that the water knockout drum（3）To be unidirectional
Sealing structure, by housing（31）, outer sleeve（32）, point water short circuit（33）With the pressure ring that automatically resets（34）Composition；Wherein, housing
（31）With outer sleeve（32）And connect, between form annular space,
Divide water short circuit（33）It is arranged on housing（31）It is interior to pass through the pressure ring that automatically resets（34）With housing（31）It is interlinked to the outside, point water short circuit
（33）It is provided with several bleeders, outer sleeve（32）It is provided with several delivery ports.
4. oil well open type heat tracing circulation system according to claim 1, it is characterised in that the oil return gathering system is successively
By water mixing heating furnace（4）, water mixing tank（5）, three phase separator（6）, outer defeated tank（7）With outer defeated heating furnace（8）Connection composition,
Wherein, heat-insulating pipeline（2）With water mixing heating furnace（4）Pass through booster pump（1）Connection, oil-water mixture outlet（11）With three-phase
Separator（6）It is directly connected to.
5. oil well open type heat tracing circulation system according to claim 1, it is characterised in that heating furnace（4）With water mixing tank（5）
Between be provided with water mixing pump（9）, outer defeated tank（7）With outer defeated heating furnace（8）Between be provided with output pump（10）.
6. oil well open type heat tracing circulation system according to claim 1, it is characterised in that the water mixing heating furnace and outer defeated
Inside heating furnace is coil arrangement.
7. a kind of oil well open type heat tracing circulation system operation method, it is characterised in that low pressure water mixing is first passed through into water mixing heating furnace
（4）75-85 degree is heated to, passes through booster pump（1）Enter heat-insulating pipeline after supercharging（2）, pass through underground water knockout drum（3）It is sent to oil
In pipe, heat-insulating pipeline is passed through after water oil mixing（2）The fluid swivels of both sides are exported into oil-water mixture（11）, into three-phase separate
From device（6）, through three phase separator（6）Water oil is separated, aqueous phase formation low pressure water enters water mixing tank（5）, through water mixing pump（9）
Enter water mixing heating furnace after supercharging（4）Heating, forms water circulation, and oil phase enters outer defeated tank（7）In, gas phase portion therein is from outer
Defeated tank（7）Upper end gas port is emitted into gas concentration unit, and oil phase passes through output pump（10）By outer defeated heating furnace after supercharging（8）Plus
Heat, is then sent to combination station of gathering and transportation big pot of oil storage device.
8. oil well open type heat tracing circulation system operation method according to claim 7, it is characterised in that the heat-insulating pipeline
（2）For heat-insulated inner sleeve or heat-insulated hollow stem；
Wherein, heat-insulated inner sleeve is that the inner tube with thermal insulation layer is placed in hollow stem, after hot water enters underground through heat-insulated inner sleeve,
Realize that downhole crude open type mixes heat tracing into oil pipe through water knockout drum；
Heat-insulated hollow stem is outer surface with thermal insulation layer and inside is hollow long tube, and hot water enters underground through heat-insulated hollow stem
When, oil pipe is directly entered by water knockout drum；Open type mixing heat tracing is carried out to downhole crude.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610860349.1A CN106948798A (en) | 2016-09-29 | 2016-09-29 | A kind of oil well open type heat tracing circulation system and its operation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610860349.1A CN106948798A (en) | 2016-09-29 | 2016-09-29 | A kind of oil well open type heat tracing circulation system and its operation method |
Publications (1)
| Publication Number | Publication Date |
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| CN106948798A true CN106948798A (en) | 2017-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610860349.1A Pending CN106948798A (en) | 2016-09-29 | 2016-09-29 | A kind of oil well open type heat tracing circulation system and its operation method |
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| CN (1) | CN106948798A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107905747A (en) * | 2017-12-12 | 2018-04-13 | 中国石油化工股份有限公司 | A kind of oil-field thick-oil water mixing well consumption reduction hot wash control device and method |
| CN107939339A (en) * | 2018-01-12 | 2018-04-20 | 吉林爱科德科技有限公司 | Oil field special-purpose air source high temperature device for removing paraffin and washing well and using method |
| CN112377159A (en) * | 2019-09-26 | 2021-02-19 | 吴浩 | Injection-production integrated crude oil exploitation device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107905747A (en) * | 2017-12-12 | 2018-04-13 | 中国石油化工股份有限公司 | A kind of oil-field thick-oil water mixing well consumption reduction hot wash control device and method |
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| CN107939339A (en) * | 2018-01-12 | 2018-04-20 | 吉林爱科德科技有限公司 | Oil field special-purpose air source high temperature device for removing paraffin and washing well and using method |
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| CN112377159A (en) * | 2019-09-26 | 2021-02-19 | 吴浩 | Injection-production integrated crude oil exploitation device |
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Application publication date: 20170714 |
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