CN1028304C - Storage and transportation of viscous oil mixture - Google Patents
Storage and transportation of viscous oil mixture Download PDFInfo
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- CN1028304C CN1028304C CN 93103688 CN93103688A CN1028304C CN 1028304 C CN1028304 C CN 1028304C CN 93103688 CN93103688 CN 93103688 CN 93103688 A CN93103688 A CN 93103688A CN 1028304 C CN1028304 C CN 1028304C
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Abstract
The present invention relates to a method for the centralized conveyance of a thick oil mixture which is extracted from an oil well. The method provides a single pump for pumping and purifying thick oil; the purified thick oil is used as a liquid piston to pump sand, water and the thick oil. The method which is used for the centralized conveyance of the thick oil mixture among stations greatly prolongs the service life of the pump; the method can reduce the cost of the centralized conveyance and save a large amount of expense for station construction. The present invention is applicable to the centralized conveyance of the thick oil with the requirement of high reliability among the stations under the conditions of unmanned watch and little maintenance; the operating conditions relate to the places with a wide range of oil well distribution and servere environment or outlying oil field regions.
Description
The present invention relates to a kind of method, belong to the F17D technical field by International Patent Classification from oil well concentrated conveying through between the viscous oil mixture station after the Oil-gas Separation.
China's viscous crude resource is very abundant, in a large number exploitation Liaohe Oil Field, Shengli Oil Field, Karamay oilfield, oil field, Nanyang etc. are arranged.Viscous crude belongs to heavy crude, its than great, viscosity is high, flow difficulties, adopt heating exploitation usually, mix thin oil exploitation.Heavy crude well distributes and has a large capacity and a wide range, and gassiness, water and sand etc. in the viscous oil mixture of extraction are given to concentrate between the station of exploiting later viscous oil mixture to carry and brought very big difficulty.Between each oilfield stations there be the defeated method of collection at present: heat tracing is carried, and hot water follows insulation to carry, and mixes thermal medium and carries, and does not heat conveying etc.Defeated method and the step of collection is between its station:
1) catch pot that relies on the pressure of pumping unit to enter metering station from the viscous oil mixture of oil well carries out Oil-gas Separation, and isolated gas is sent to gas plant after metering;
2) viscous oil mixture that comes out of catch pot relies on its residual pressure (when residual pressure has in limited time, need set up the pump pressurization) to enter in the oil tank of transfer station after metering;
When 3) viscous oil mixture in entering the transfer station oil tank reaches setting height, the rotor pump that starts transfer station is transported to the viscous oil mixture supercharging in the heavy oil gathering pipelines, goes out gathering line and delivers to viscous crude processing station (multi-purpose station) and carry out viscous crude purified treatment such as heavy oil dehydration, desanding.
In the said method step 3), the sand in the viscous oil mixture will inevitably enter rotor pump, makes the running clearance wearing and tearing of pump increase, and causes the very fast reduction of pump performance and pump efficiency, and until working, this situation can take place in 1-3 month.Another kind of situation, the viscous oil mixture waiting time in entering the transfer station oil tank, viscous crude and water just the profit stratification can occur when longer.Because rotor pump is suitable for transporting viscous liquid, after especially the wearing and tearing of rotor pump internal clearance increase, be not suitable for the supercharging of water is carried.So, in above-mentioned steps 3) in, use earlier the centrifugal pump transporting water, re-use the rotor pump transferring oil after running into viscous crude.Doing has so not only increased the expense of building a station, and makes complicated operation, and poor reliability still has sand simultaneously to problems such as the working life of the wearing and tearing of pump, pump are short.Rotor pump is to be difficult for repairing because of the damage that wearing and tearing cause for the scene, oil field, and said method is outlying for being located in, the field area of maintenance condition difference can not satisfy viscous oil mixture and concentrate the needs of carrying.
The invention provides a kind of single pump only pumping purify viscous crude and with this purification viscous crude as liquid piston pumping sand, the method for water and viscous crude.
The present invention is achieved in that 1) rely on its residual pressure to enter pressurized tank from two pressurized tank lower inlet one-way valves respectively through the viscous oil mixture of Oil-gas Separation, this viscous oil mixture enters pressurized tank through two pressurized tank lower inlet one-way valves, the cyclone separator of this viscous oil mixture through two pressurized tank bottoms forms and purifies viscous crude, three layers in water and sand, two isolated a small amount of gases in pressurized tank top are discharged automatically through the float valve that is arranged on two pressurized tank tops, the outlet one-way valve of heavy oil gathering pipelines is led to because the pressure in the heavy oil gathering pipelines is in closed condition in two pressurized tank bottoms, when viscous oil mixture was full of pressurized tank, float valve was owing to the residual pressure of viscous oil mixture is closed automatically; 2) starting rotor pump enters in second pressurized tank the purification viscous crude in first pressurized tank, purify under the pressure of viscous crude at this, the import one-way valve of second pressurized tank bottom is closed automatically, the outlet one-way valve that heavy oil gathering pipelines is led in second pressurized tank bottom is opened automatically, and with the sand in second pressurized tank, water and purification viscous crude are pressed in the heavy oil gathering pipelines successively, first pressurized tank top float valve is opened automatically in this process, viscous oil mixture through Oil-gas Separation relies on its residual pressure to enter in first pressurized tank from the import one-way valve of first pressurized tank bottom, the cyclone separator of this viscous oil mixture through first pressurized tank bottom forms and purifies viscous crude, three layers in water and sand, the isolated a small amount of gas in pressurized tank top is discharged automatically through the float valve that is arranged on the top, isolated purification viscous crude constantly by the rotor pump force feed through second pressurized tank in heavy oil gathering pipelines; 3) when oil-water interfaces in first pressurized tank rise to below desired location with the rotor pump interface, the rotor pump stall, the outlet one-way valve of heavy oil gathering pipelines is led to because the pressure automatic cut-off of heavy oil gathering pipelines in second pressurized tank bottom, when viscous oil mixture is full of first pressurized tank, float valve is owing to the buoyancy of viscous oil mixture is closed automatically, the rotor pump backward rotation, purification viscous crude in second pressurized tank is entered in first pressurized tank, purify under the pressure of viscous crude at this, first pressurized tank lower inlet one-way valve is closed automatically, the outlet one-way valve that heavy oil gathering pipelines is led in first pressurized tank bottom is opened automatically, and with the sand in first pressurized tank, water and purification viscous crude are pressed in the heavy oil gathering pipelines successively, second pressurized tank top float valve opened automatically in this process, viscous oil mixture through Oil-gas Separation relies on its residual pressure to enter in second pressurized tank from the import one-way valve of second pressurized tank bottom, the cyclone separator of this viscous oil mixture through second pressurized tank bottom forms and purifies viscous crude, three layers in water and sand, the isolated a small amount of gas in pressurized tank top is discharged automatically through the float valve that is arranged on the top, isolated purification viscous crude constantly by the rotor pump force feed through first pressurized tank in heavy oil gathering pipelines; 4) when oil-water interfaces in second pressurized tank rise to below desired location with the rotor pump interface, the rotor pump stall, the outlet one-way valve of heavy oil gathering pipelines is led to because the pressure automatic cut-off of heavy oil gathering pipelines in first pressurized tank bottom, when viscous oil mixture is full of second pressurized tank, float valve is owing to the buoyancy of viscous oil mixture is closed automatically, rotor pump backward rotation, and repeating step 2).
In the said method step, because the medium that rotor pump is carried is always the purification viscous crude, thereby the running clearance that has reduced pump widely contains the wearing and tearing that sand produces because of carrying in the viscous oil mixture, has improved the working life of pump.Two set one-way valves of pressurized tank all are to rely on the variation of fluid pressure and open automatically or close, and make easy and simple to handle.Select the separate unit rotor pump in this method for use, can adopt the parking and the clockwise and anticlockwise of interface instrument or flowmeter or time interval controls system control pump, realize the function conversion of two pressurized tanks, avoided being provided with numerous and diverse operation that a large amount of control valves switch, its device flow process is simple, and maintenance workload is little, equipment investment is few, can save a large amount of expenses of building a station, isolated a small amount of gas can be done further recovery in the viscous oil mixture of Oil-gas Separation, changes oily process and can realize closed process.This method does not have harsh requirement for degree moisture in the viscous oil mixture from oil well, sand, can realize automatic control, is best suited for to concentrate between the viscous crude station that requires height reliability under unattended and the seldom maintenance condition to carry.These operating modes relate to heavy crude well and distribute and to have a large capacity and a wide range, the occasion that environment is abominable or be located in outlying field area.
Fig. 1 is the schematic representation of the method for the invention;
Fig. 2 is the schematic representation with the method for the invention of interface instrument A.
Describe one embodiment of the present invention in detail below in conjunction with accompanying drawing:
1) through the viscous oil mixture of Oil-gas Separation rely on residual pressure by intake pipeline 13 respectively from pressurized tank 4,5 lower inlet one-way valves 8,9 enter pressurized tank 4,5, this viscous oil mixture is through pressurized tank 4, the cyclone separator of 5 bottoms forms and purifies viscous crude, three layers in water and sand, pressurized tank 4, the isolated a small amount of gas in 5 tops is through being arranged on pressurized tank 4, the float valve 14 at 5 tops, 15 dependence self pressure is discharged automatically, be sent to gas plant through natural gas line 16, pressurized tank 4, the outlet one-way valve 10 of heavy oil gathering pipelines 12 is led in 5 bottoms, 11 because the pressure in the heavy oil gathering pipelines 12 is in closed condition, when viscous oil mixture is full of pressurized tank 4,5 o'clock, float valve 14,15 owing to the residual pressure of viscous oil mixture is closed automatically;
2) starting rotor pump 1 enters in the pressurized tank 5 the purification viscous crude in the pressurized tank 4, purify under the pressure of viscous crude at this, the import one-way valve 9 of pressurized tank 5 bottoms is closed automatically, the outlet one-way valve 11 that heavy oil gathering pipelines 12 is led in pressurized tank 5 bottoms is opened automatically, and with the sand in the pressurized tank 5, water and purification viscous crude are pressed in the heavy oil gathering pipelines 12 successively, pressurized tank 4 top float valves 14 are opened automatically in this process, rely on its residual pressure to enter in the pressurized tank 4 through the viscous oil mixture after the Oil-gas Separation through the import one-way valve 8 of intake pipeline 13 from pressurized tank 4 bottoms, the cyclone separator of this viscous oil mixture through pressurized tank 4 bottoms forms and purifies viscous crude, three layers in water and sand, float valve 14 dependence of the isolated a small amount of gas in pressurized tank 4 tops through being arranged on the top self pressure is discharged automatically, be sent to gas plant through natural gas line 16, isolated purification viscous crude constantly by rotor pump 1 force feed through pressurized tank 5 in heavy oil gathering pipelines 12;
3) when oil-water interfaces rising in the pressurized tank 4 exports 6 positions near pressurized tank 4 purification viscous crude, select for use interface instrument control to make rotor pump 1 stall, the outlet one-way valve 11 of heavy oil gathering pipelines 12 is led to because the pressure automatic cut-off in the heavy oil gathering pipelines 12 in pressurized tank 5 bottoms, when viscous oil mixture is full of pressurized tank 4, when float valve 14 cuts out automatically owing to the residual pressure of viscous oil mixture, start rotor pump 1 once more and make its backward rotation, purification viscous crude in the pressurized tank 5 is entered in the pressurized tank 4, purify under the pressure of viscous crude at this, pressurized tank 4 lower inlet one-way valves 8 are closed automatically, the outlet one-way valve 10 that heavy oil gathering pipelines 12 is led in pressurized tank 4 bottoms is opened automatically, and with the sand in the pressurized tank 4, water and purification viscous crude are pressed in the heavy oil gathering pipelines 12 successively, pressurized tank 5 top float valves 15 are opened automatically in this process, viscous oil mixture through Oil-gas Separation relies on its residual pressure to enter in the pressurized tank 5 through the import one-way valve 9 of intake pipeline 13 from pressurized tank 5 bottoms, the cyclone separator of this viscous oil mixture through pressurized tank 5 bottoms forms and purifies viscous crude, three layers in water and sand, float valve 15 dependence of the isolated a small amount of gas in pressurized tank 5 tops through being arranged on the top self pressure is discharged automatically, be sent to gas plant through natural gas line 16, isolated purification viscous crude constantly by rotor pump 1 force feed through pressurized tank 4 in heavy oil gathering pipelines 12;
4) when oil-water interfaces rising in the pressurized tank 5 exports 7 positions near pressurized tank 5 purification viscous crude, select for use interface instrument control to make rotor pump 1 stall, the outlet one-way valve 10 of heavy oil gathering pipelines 12 is led to because the pressure automatic cut-off in the heavy oil gathering pipelines 12 in pressurized tank 4 bottoms, when viscous oil mixture is full of pressurized tank 5, float valve 15 because the residual pressure of viscous oil mixture when closing automatically, start rotor pump 1 once more and make its backward rotation, and repeating step (2).
Second kind of mode of execution of the present invention is: interface instrument control is not selected in the stall of rotor pump 1 and switching for use, thereby but adopts stall and the switching that the quantitative purification viscous crude control rotor pump 1 of rotor pump 1 conveying is set.This mode of execution can be provided with flowmeter in rotor pump 1 import and export and control.
The third mode of execution of the present invention is: timer is adopted in the stall of rotor pump 1 and switching, after making rotor pump running set time, regularly stall and switching, this mode need be calculated the time of setting at the situation of the on-the-spot oil-water ratio in oil field, make the height of oil-water interfaces be in all the time pressurized tank 4,5 purify viscous crude outlet 6, below 7.
Claims (4)
1, a kind of oil well produced storage and transportation of viscous oil mixture method is characterized in that having the following steps:
1) viscous oil mixture through Oil-gas Separation relies on residual pressure from pressurized tank (4), (5) lower inlet one-way valve (8), (9) enter pressurized tank (4), (5), this viscous oil mixture is through pressurized tank (4), (5) cyclone separator of bottom forms and purifies viscous crude, three layers in water and sand, pressurized tank (4), (5) the isolated a small amount of gas in top is through being arranged on pressurized tank (4), (5) float valve at top (14), (15) discharge automatically, pressurized tank (4), (5) the outlet one-way valve (10) of heavy oil gathering pipelines is led in the bottom, (11) because the pressure in the heavy oil gathering pipelines (12) is in closed condition, when viscous oil mixture is full of pressurized tank (4), (5) time, float valve (14), (15) owing to the residual pressure of viscous oil mixture is closed automatically;
2) starting rotor pump (1) enters in the pressurized tank (5) the purification viscous crude in the pressurized tank (4), purify under the pressure of viscous crude at this, the import one-way valve (9) of pressurized tank (5) bottom is closed automatically, the outlet one-way valve (11) that leads to heavy oil gathering pipelines (12) bottom the pressurized tank (5) is opened automatically, and the sand in the net pressure jar (5), water and purification viscous crude are pressed in the heavy oil gathering pipelines (12) successively, pressurized tank in this process (4) top float valve (14) is opened automatically, rely on its residual pressure to enter in the pressurized tank (4) through the viscous oil mixture after the Oil-gas Separation through the import one-way valve (8) of intake pipeline (13) from pressurized tank (4) bottom, the cyclone separator of this viscous oil mixture through pressurized tank (4) bottom forms and purifies viscous crude, three layers in water and sand, pressurized tank (4) the top float valve (14) of isolated a small amount of gas through being arranged on the top relies on self pressure to discharge automatically, isolated purification viscous crude constantly by rotor pump (1) force feed through pressurized tank (5) in heavy oil gathering pipelines (12);
3) when the oil-water interfaces of pressurized tank (4) rise to below desired location with rotor pump (1) interface (6), rotor pump (1) stall, the outlet one-way valve (11) of heavy oil gathering pipelines (12) is led to because the pressure automatic cut-off of heavy oil gathering pipelines (12) in pressurized tank (5) bottom, when viscous oil mixture is full of pressurized tank (4), float valve (14) is owing to the buoyancy of viscous oil mixture is closed automatically, rotor pump (1) backward rotation, purification viscous crude in the pressurized tank (5) is entered in the pressurized tank (4), purify under the pressure of viscous crude at this, pressurized tank (4) lower inlet one-way valve (8) is closed automatically, the outlet one-way valve (10) that leads to heavy oil gathering pipelines (12) bottom the pressurized tank (4) is opened automatically, and with the sand in the pressurized tank (4), water and purification viscous crude are pressed in the heavy oil gathering pipelines (12) successively, pressurized tank in this process (5) top float valve (15) is opened automatically, viscous oil mixture through Oil-gas Separation relies on its residual pressure to enter in the pressurized tank (5) from the import one-way valve (9) of pressurized tank (5) bottom, the cyclone separator of this viscous oil mixture through pressurized tank (5) bottom forms and purifies viscous crude, three layers in water and sand, the float valve (15) of the isolated a small amount of gas in pressurized tank (5) top through being arranged on the top discharged automatically, and isolated purification viscous crude is constantly arrived in the heavy oil gathering pipelines (12) through pressurized tank (4) by rotor pump (1) force feed;
Rotor pump (1) stall when 4) oil-water interfaces rise to below desired location with rotor pump (1) interface (7) in the pressurized tank (5), the outlet one-way valve (11) of heavy oil gathering pipelines (12) is led in pressurized tank (4) bottom, because the pressure automatic cut-off in the heavy oil gathering pipelines (12), when viscous oil mixture is full of pressurized tank (5), float valve (15) is owing to the buoyancy of viscous oil mixture is closed automatically, rotor pump (1) backward rotation, and repeating step 2).
2, method according to claim 1 is characterized in that step 3) and 4) described oil-water interfaces rise to below with the desired location of rotor pump (1) interface (6), (7) and are realized by the control of interface instrument.
3, method according to claim 1, it is characterized in that step 3) and 4) described oil-water interfaces rise to desired location adopt rotor pump (1) is set thus carry the stall of quantitative purification viscous crude control rotor pump (1) and switch and realize, this mode can be imported and exported at rotor pump (1) and flowmeter is set control.
4, method according to claim 1 is characterized in that it is by timer control rotor pump (1) running that the described oil-water interfaces of step 3) and step 4) rise to desired location, and stall and switching realize after the scheduled time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93103688 CN1028304C (en) | 1993-04-06 | 1993-04-06 | Storage and transportation of viscous oil mixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93103688 CN1028304C (en) | 1993-04-06 | 1993-04-06 | Storage and transportation of viscous oil mixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1077786A CN1077786A (en) | 1993-10-27 |
| CN1028304C true CN1028304C (en) | 1995-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93103688 Expired - Fee Related CN1028304C (en) | 1993-04-06 | 1993-04-06 | Storage and transportation of viscous oil mixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1028304C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114433A (en) * | 2018-10-31 | 2019-01-01 | 官天日 | Two-chamber liquid back and forth drives multi-phase pipeline method and device thereof |
| CN114278862A (en) * | 2020-12-31 | 2022-04-05 | 广东管辅能源科技有限公司 | Multiphase flow mixed transportation method, multiphase flow mixed transportation device and application system |
| CN114278865A (en) * | 2020-12-31 | 2022-04-05 | 广东管辅能源科技有限公司 | Multiphase flow mixed transportation method, multiphase flow mixed transportation device and multiphase flow mixed transportation application system |
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1993
- 1993-04-06 CN CN 93103688 patent/CN1028304C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1077786A (en) | 1993-10-27 |
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