CN104791212A - Simple cluster type well group pressurization system and pressurization method thereof - Google Patents
Simple cluster type well group pressurization system and pressurization method thereof Download PDFInfo
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- CN104791212A CN104791212A CN201510107520.7A CN201510107520A CN104791212A CN 104791212 A CN104791212 A CN 104791212A CN 201510107520 A CN201510107520 A CN 201510107520A CN 104791212 A CN104791212 A CN 104791212A
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Abstract
The invention belongs to the technical field of oil gas exploitation and transportation on an oil field and particularly relates to a simple cluster type well group pressurization system and a pressurization method thereof. A hydraulic water cylinder and a hydraulic oil cylinder are connected into a whole through piston rods, a piston of the hydraulic water cylinder is driven to make reciprocating motion by way of reversing water injection, thereby a piston of the hydraulic oil cylinder is driven to make reciprocating motion, and by means of the piston of the hydraulic oil cylinder which makes the reciprocating motion, the suction, pressurization and output of oil fluid are achieved. According to the system and method, high pressure water is adopted for boosting the pressure of the oil fluid, the circumstance that electric power energy is prone to causing burning is avoided, the defects that in the existing oil-gas mixing transportation and pressurization process, a motor is adopted for driving a mixing transportation pump, certain potential safety hazards exist, in addition, the mixing transportation pump is high in fabrication cost and high in repair and maintenance cost as well are overcome, the structure is simple, and the repair and maintenance are convenient.
Description
Technical field
The invention belongs to oilfield and adopt transferring technology field, be specifically related to a kind of collecting well group simple pressurizing system and boosting method thereof.
Background technique
China is in oilfield exploitation, and annual associated gas stock number is extremely huge, but the tolerance of actual recovered is less than 10%, and a huge wasting of resources is not only in emptying like this, goes back serious environment pollution simultaneously.According to data introduction, the greenhouse effect that natural gas vent causes are more than 12 times of same volume carbon dioxide, and in oil field, some block is also containing hydrogen sulfide gas, and environmental pollution is more serious.Therefore, effectively utilize limited natural gas resource, improve the irrational energy resource structure of China as early as possible, extinguish oil field torch, reducing gas discharging is extremely urgent work.
Oil and gas multiphase flow technology is that a kind of being carried out by crude oil output object mixes the new technology that supercharging is delivered directly to multi-purpose station, compares, can reduce oil, gas separation equipment, build a gas transmission line less, can reduce platform area for offshore oilfield with traditional oil production technology.The breakthrough of oil and gas multiphase flow technology, not only greatly can reduce construction investment, for the oil gas full closed collection realizing oil field defeated and extend collection defeated radius have very important meaning, wellhead back pressure can be reduced simultaneously, increase crude oil and gas production, engineering drops into and maintenance of underground work amount reduces, and facilitates production management.Its economic and social benefit is very considerable, and the energy is fully used, and environmental condition improves.
Mostly use screw rod mixing delivery pump for oil and gas multiphase flow equipment both at home and abroad at present, the oil-gas mixed delivery pump adopted at present mainly contains helical rotor pump, two screw pump, synchronous revolving compressor etc.
Because existing mixing pump pressurizing processes all adopts driven by motor, defeated medium is flammable fluid, has certain potential safety hazard; Mixing pump is due to complex structure, and maintenance maintenance costly; Oil-gas mixed delivery pump is generally applied to the larger medium supercharging of gas-liquid flow, and cost is higher.
Summary of the invention
The object of the invention is to overcome in existing oil and gas multiphase flow pressurization and adopt driven by motor mixing pump, there is certain potential safety hazard, and the problem that mixing pump cost is high, maintenance maintenance expense is also higher.
For this reason, the invention provides a kind of collecting well group simple pressurizing system, comprise the water filling branch line be connected with water injection well carry out water pipeline and remove water injection well pipeline, also comprise the well group be connected with oil well and carry out petroleum pipeline after oil pipeline and supercharging, described water filling branch line carrys out water pipeline and goes water injection well pipeline to be all connected to same hydraulic pressure water vat, after described well group comes oil pipeline and supercharging, petroleum pipeline is all connected to same hydraulic jack, described hydraulic pressure water vat and hydraulic jack are single-piston-rod hydraulic cylinder, and the piston rod of hydraulic pressure water vat is connected with the piston rod of hydraulic jack;
The waterexit end that described water filling branch line carrys out water pipeline is divided into two branch roads, the rod chamber of difference connecting fluid setting-out cylinder and rodless cavity, and the described feed-water end of water injection well pipeline that goes is divided into two branch roads, the rod chamber of difference connecting fluid setting-out cylinder and rodless cavity;
The oil outlet end that described well group carrys out oil pipeline is divided into two branch roads, the rod chamber of difference connecting fluid compressing cylinder and rodless cavity, and after described supercharging, the oil inlet end of petroleum pipeline is divided into two branch roads, the rod chamber of difference connecting fluid compressing cylinder and rodless cavity.
Described water branch line carrys out a branch road of water pipeline and goes a branch road of water injection well pipeline all by the rodless cavity of the first electric T-shaped valve connecting fluid setting-out cylinder, and the end of this rodless cavity arranges left position limit switch, and left position limit switch is electrically connected with the first electric T-shaped valve; Described water branch line carrys out another branch road of water pipeline and goes another branch road of water injection well pipeline all by the rod chamber of the second electric T-shaped valve connecting fluid setting-out cylinder, the end of this rod chamber arranges right position limit switch, and right position limit switch is electrically connected with the second electric T-shaped valve.
The end of the rod chamber of described hydraulic pressure water vat is the first flange, the end of the rod chamber of hydraulic jack is the second flange, connecting passage is set between the first flange and the second flange by the first flange and the second Flange joint, the piston rod of hydraulic pressure water vat through the first flange, and connects as one in connecting passage with the piston rod of the hydraulic jack through the second flange.
Described water filling branch line carrys out water pipeline, removes water injection well pipeline, well group carrys out oil pipeline and after supercharging, petroleum pipeline is provided with stop valve; After described well group comes two branch roads of oil pipeline and supercharging petroleum pipeline two branch roads on be provided with safety check.
A kind of collecting well group simple pressurizing method, comprises the steps:
(1) journey supercharging is gone:
Water filling branch line water carrys out by water filling branch line water pipeline to enter hydraulic pressure water vat rodless cavity through the first electric T-shaped valve, promotes piston and runs to the right, the water in the rod chamber of hydraulic pressure water vat through the second electric T-shaped valve by going water flooding well pipe linear flow to water injection well; The piston of the piston rod promotion hydraulic jack of hydraulic pressure water vat moves right simultaneously, now, well group carrys out the rod chamber that the oily branch road carrying out oil pipeline connecting fluid compressing cylinder rod chamber by well group enters hydraulic jack, and the oil in hydraulic jack rodless cavity is pressed into petroleum pipeline branch road after the supercharging of connecting fluid compressing cylinder rodless cavity, realizes supercharging oil transportation;
(2) a circuit break-in:
The piston movement of hydraulic pressure water vat, to low order end, touches right position limit switch, right lateral journey switch control rule first electric T-shaped valve, the second electric T-shaped valve electromagnet dead electricity and valve body commutation;
(3) backhaul supercharging:
Water filling branch line water carrys out by water filling branch line water pipeline to enter hydraulic pressure water vat rod chamber through the second electric T-shaped valve, promotes piston and runs left, the water in the rodless cavity of hydraulic pressure water vat through the first electric T-shaped valve by going water flooding well pipe linear flow to water injection well; The piston rod of hydraulic pressure water vat pulls the piston of hydraulic jack to left movement simultaneously, now, well group carrys out the rodless cavity that the oily branch road carrying out oil pipeline connecting fluid compressing cylinder rodless cavity by well group enters hydraulic jack, and the oil in hydraulic jack rod chamber is pressed into petroleum pipeline branch road after the supercharging of connecting fluid compressing cylinder rod chamber, realizes supercharging oil transportation;
(4) circuit secondary break-in:
The piston movement of hydraulic pressure water vat, to high order end, touches left position limit switch, left lateral journey switch control rule first electric T-shaped valve, the second electric T-shaped valve electromagnet again the commutation of electric and valve body, complete one-period;
(5) cycle is reciprocal:
Continuous repetition step (1) (2) (3) (4), realize well group oily constantly by after hydraulic jack supercharging by petroleum pipeline after supercharging be delivered to station field.
The present invention has following beneficial effect compared with existing pressurizing processes:
1, compared with conventional pressurizing processes, make use of the feature of collecting well group oil/water well with well site, utilize in well site high pressure water to crude oil supercharging, achieve profit transformation of energy.
2, existing mixing pump pressurizing processes all adopts driven by motor, and because defeated medium is flammable fluid, have certain potential safety hazard, the present invention does not use electric power equal energy source, safer;
3, structure of the present invention is simple, and maintenance maintenance is convenient.
Below with reference to accompanying drawing, the present invention is described in further details.
Accompanying drawing explanation
Fig. 1 is system principle schematic diagram of the present invention.
Description of reference numerals: 1, water filling branch line carrys out water pipeline; 2, water injection well pipeline is removed; 3, well group carrys out oil pipeline; 4, petroleum pipeline after supercharging; 5, hydraulic pressure water vat; 6, hydraulic jack; 7, the first electric T-shaped valve; 8, left position limit switch; 9, the second electric T-shaped valve; 10, right position limit switch; 11, the first flange; 12, the second flange; 13, connecting passage; 14, stop valve; 15, safety check.
Embodiment
Embodiment 1:
The present embodiment provides a kind of collecting well group simple pressurizing system, as shown in Figure 1, comprise the water filling branch line be connected with water injection well carry out water pipeline 1 and remove water injection well pipeline 2, also comprise the well group be connected with oil well and carry out petroleum pipeline 4 after oil pipeline 3 and supercharging, described water filling branch line carrys out water pipeline 1 and goes water injection well pipeline 2 to be all connected to same hydraulic pressure water vat 5, after described well group comes oil pipeline 3 and supercharging, petroleum pipeline 4 is all connected to same hydraulic jack 6, described hydraulic pressure water vat 5 and hydraulic jack 6 are single-piston-rod hydraulic cylinder, and the piston rod of hydraulic pressure water vat 5 is connected with the piston rod of hydraulic jack 6,
The waterexit end that water filling branch line carrys out water pipeline 1 is divided into two branch roads, the rod chamber of difference connecting fluid setting-out cylinder 5 and rodless cavity; The feed-water end of water injection well pipeline 2 is gone to be divided into two branch roads, the rod chamber of difference connecting fluid setting-out cylinder 5 and rodless cavity;
The oil outlet end that well group carrys out oil pipeline 3 is divided into two branch roads, the rod chamber of difference connecting fluid compressing cylinder 6 and rodless cavity; After supercharging, the oil inlet end of petroleum pipeline 4 is divided into two branch roads, the rod chamber of difference connecting fluid compressing cylinder 6 and rodless cavity.
The present embodiment is by the rodless cavity of hydraulic pressure water vat 5 and rod chamber water filling in conversion, realize the reciprocating motion of the pistons of the piston rod band hydraulic cylinder 6 of hydraulic pressure water vat 5, the to-and-fro motion of hydraulic jack 6, realize oily rodless cavity or the rod chamber constantly entering hydraulic jack 6 of well group, then after being pressed into supercharging, petroleum pipeline 4 is delivered to field, station.
Embodiment 2:
On the basis of embodiment 1, in the present embodiment, water branch line carrys out a branch road of water pipeline 1 and goes a branch road of water injection well pipeline 2 all by the rodless cavity of the first electric T-shaped valve 7 connecting fluid setting-out cylinder 5, the end of this rodless cavity arranges left position limit switch 8, and left position limit switch 8 is electrically connected with the first electric T-shaped valve 7 and controls it and lead to; Described water branch line carrys out another branch road of water pipeline 1 and goes another branch road of water injection well pipeline 2 all by the rod chamber of the second electric T-shaped valve 9 connecting fluid setting-out cylinder 5, the end of this rod chamber arranges right position limit switch 10, and right position limit switch 10 is electrically connected with the second electric T-shaped valve 9 and controls it and lead to.
The present embodiment is by following process implementation pressure-increasing unit:
(1) journey supercharging is gone: water filling branch line water carrys out by water filling branch line water pipeline 1 to enter hydraulic pressure water vat 5 rodless cavity through the first electric T-shaped valve 7, promote piston to run to the right, the water in the rod chamber of hydraulic pressure water vat 5 flows to water injection well through the second electric T-shaped valve 9 by removing water injection well pipeline 2; The piston of the piston rod promotion hydraulic jack 6 of hydraulic pressure water vat 5 moves right simultaneously, now, well group carrys out the rod chamber that the oily branch road carrying out oil pipeline 3 connecting fluid compressing cylinder 6 rod chamber by well group enters hydraulic jack 6, and the oil in hydraulic jack 6 rodless cavity is pressed into petroleum pipeline 4 branch road after the supercharging of connecting fluid compressing cylinder 6 rodless cavity, realizes supercharging oil transportation;
(2) a circuit break-in: the piston movement of hydraulic pressure water vat 5, to low order end, touches right position limit switch 10, right position limit switch 10 controls the first electric T-shaped valve 7, second electric T-shaped valve 9 electromagnet dead electricity and valve body commutates;
(3) backhaul supercharging: water filling branch line water carrys out by water filling branch line water pipeline 1 to enter hydraulic pressure water vat 5 rod chamber through the second electric T-shaped valve 9, promote piston to run left, the water in the rodless cavity of hydraulic pressure water vat 5 flows to water injection well through the first electric T-shaped valve 7 by removing water injection well pipeline 2; The piston rod of hydraulic pressure water vat 5 pulls the piston of hydraulic jack 6 to left movement simultaneously, now, well group carrys out the rodless cavity that the oily branch road carrying out oil pipeline 3 connecting fluid compressing cylinder 6 rodless cavity by well group enters hydraulic jack 6, and the oil in hydraulic jack 6 rod chamber is pressed into petroleum pipeline 4 branch road after the supercharging of connecting fluid compressing cylinder 6 rod chamber, realizes supercharging oil transportation;
(4) circuit secondary break-in: the piston movement of hydraulic pressure water vat 5, to high order end, touches left position limit switch 8, left position limit switch 8 control the first electric T-shaped valve 7, second electric T-shaped valve 9 electromagnet again the commutation of electric and valve body, complete one-period;
(5) cycle is reciprocal: constantly repeat step (1), (2), (3), (4), realize well group oily constantly by after hydraulic jack 6 supercharging by petroleum pipeline after supercharging 4 be delivered to station field.
Embodiment 3:
The present embodiment is on the basis of above-described embodiment 1 and embodiment 2, the end of the rod chamber of hydraulic pressure water vat 5 is the first flange 11, the end of the rod chamber of hydraulic jack 6 is the second flange 12, arrange connecting passage 13 between first flange 11 and the second flange 12 first flange 11 is connected with the second flange 12, the piston rod of hydraulic pressure water vat 5 through the first flange 11, and connects as one in connecting passage 13 with the piston rod of the hydraulic jack 6 through the second flange 12.
Hydraulic pressure water vat 5 and hydraulic jack 6 are made complete one by this structure of the present embodiment, so just, need not be fixed both individually, whenever, piston rod (two piston rods connect) to-and-fro motion in hydraulic pressure water vat 5 and hydraulic jack 6 can be realized, constantly carry out pressure-increasing unit to well group is next oily.
In the present embodiment, water filling branch line carrys out water pipeline 1, removes water injection well pipeline 2, well group, after coming oil pipeline 3 and supercharging, petroleum pipeline 4 is provided with stop valve 14, the setting of stop valve 14, the operation of system oil suction supercharging can be stoped at any time, wait in case of emergency very necessary, add stability and the Security of system.
After well group comes two branch roads of oil pipeline 3 and supercharging petroleum pipeline 4 two branch roads on be provided with safety check 15, the setting of safety check 15 is to prevent suck-back phenomenon, and the well group safety check 15 come on two branch roads of oil pipeline 3 makes that well group is oily can only be carried out oil pipeline 3 through well group and flow to hydraulic jack 6 and reverse flow can not go out hydraulic jack 6; After supercharging petroleum pipeline 4 two branch roads on safety check 15 make the fluid after supercharging, can only flow out and can not reverse inflow hydraulic jack 6 by petroleum pipeline 4 after supercharging.
In sum, this collecting well group simple pressurizing system of the present invention and boosting method thereof, can to well group come oily carry out supercharging after carry, can for existing collecting well group because physical features be lower, remote location, cause Oil Well Back Pressure high, safeguard the problems such as frequent, the energy of high pressure water is utilized to promote crude oil flow, improve well group crude oil kinetic energy, reduce wellhead back pressure, effectively prevent in the oil well pump that causes due to oil well high back pressure and leak, power consumption increases, the problems such as superpressure operation, and, oil transportation part of the present invention is without Electric actuator, the combustible materials such as oil gas are not easily caused to burn under electricity effect, safer.
More than exemplifying is only illustrate of the present invention, does not form the restriction to protection scope of the present invention, everyly all belongs within protection scope of the present invention with the same or analogous design of the present invention.
Claims (5)
1. a collecting well group simple pressurizing system, comprise the water filling branch line be connected with water injection well carry out water pipeline (1) and remove water injection well pipeline (2), also comprise the well group be connected with oil well and carry out petroleum pipeline (4) after oil pipeline (3) and supercharging, it is characterized in that: described water filling branch line carrys out water pipeline (1) and goes water injection well pipeline (2) to be all connected to same hydraulic pressure water vat (5), after described well group comes oil pipeline (3) and supercharging, petroleum pipeline (4) is all connected to same hydraulic jack (6), described hydraulic pressure water vat (5) and hydraulic jack (6) are single-piston-rod hydraulic cylinder, and the piston rod of hydraulic pressure water vat (5) is connected with the piston rod of hydraulic jack (6),
The waterexit end that described water filling branch line carrys out water pipeline (1) is divided into two branch roads, the rod chamber of difference connecting fluid setting-out cylinder (5) and rodless cavity, the described feed-water end of water injection well pipeline (2) that goes is divided into two branch roads, the rod chamber of difference connecting fluid setting-out cylinder (5) and rodless cavity;
The oil outlet end that described well group carrys out oil pipeline (3) is divided into two branch roads, the rod chamber of difference connecting fluid compressing cylinder (6) and rodless cavity, after described supercharging, the oil inlet end of petroleum pipeline (4) is divided into two branch roads, the rod chamber of difference connecting fluid compressing cylinder (6) and rodless cavity.
2. collecting well group simple pressurizing system as claimed in claim 1, it is characterized in that: described water branch line carrys out a branch road of water pipeline (1) and goes a branch road of water injection well pipeline (2) all by the rodless cavity of the first electric T-shaped valve (7) connecting fluid setting-out cylinder (5), the end of this rodless cavity arranges left position limit switch (8), and left position limit switch (8) is electrically connected with the first electric T-shaped valve (7); Described water branch line carrys out another branch road of water pipeline (1) and goes another branch road of water injection well pipeline (2) all by the rod chamber of the second electric T-shaped valve (9) connecting fluid setting-out cylinder (5), the end of this rod chamber arranges right position limit switch (10), and right position limit switch (10) is electrically connected with the second electric T-shaped valve (9).
3. collecting well group simple pressurizing system as claimed in claim 1 or 2, it is characterized in that: the end of the rod chamber of described hydraulic pressure water vat (5) is the first flange (11), the end of the rod chamber of hydraulic jack (6) is the second flange (12), arrange connecting passage (13) between first flange (11) and the second flange (12) the first flange (11) is connected with the second flange (12), the piston rod of hydraulic pressure water vat (5) is through the first flange (11), and connect as one in connecting passage (13) with the piston rod of the hydraulic jack (6) through the second flange (12).
4. collecting well group simple pressurizing system as claimed in claim 3, is characterized in that: described water filling branch line carrys out water pipeline (1), removes water injection well pipeline (2), well group, after coming oil pipeline (3) and supercharging, petroleum pipeline (4) is provided with stop valve (14); After described well group comes two branch roads of oil pipeline (3) and supercharging petroleum pipeline (4) two branch roads on be provided with safety check (15).
5. a boosting method for collecting well group simple pressurizing system as claimed in claim 1 or 2, is characterized in that, comprise the steps:
(1) journey supercharging is gone:
Water filling branch line water carrys out by water filling branch line water pipeline (1) to enter hydraulic pressure water vat (5) rodless cavity through the first electric T-shaped valve (7), promote piston to run to the right, the water in the rod chamber of hydraulic pressure water vat (5) flows to water injection well through the second electric T-shaped valve (9) by removing water injection well pipeline (2); The piston of piston rod promotion hydraulic jack (6) of hydraulic pressure water vat (5) moves right simultaneously, now, well group carrys out the rod chamber that the oily branch road carrying out oil pipeline (3) connecting fluid compressing cylinder (6) rod chamber by well group enters hydraulic jack (6), and the oil in hydraulic jack (6) rodless cavity is pressed into petroleum pipeline (4) branch road after the supercharging of connecting fluid compressing cylinder (6) rodless cavity, realizes supercharging oil transportation;
(2) a circuit break-in:
The piston movement of hydraulic pressure water vat (5), to low order end, touches right position limit switch (10), right position limit switch (10) control the first electric T-shaped valve (7), the second electric T-shaped valve (9) electromagnet dead electricity and valve body commutation;
(3) backhaul supercharging:
Water filling branch line water carrys out by water filling branch line water pipeline (1) to enter hydraulic pressure water vat (5) rod chamber through the second electric T-shaped valve (9), promote piston to run left, the water in the rodless cavity of hydraulic pressure water vat (5) flows to water injection well through the first electric T-shaped valve (7) by removing water injection well pipeline (2); The piston rod of hydraulic pressure water vat (5) pulls the piston of hydraulic jack (6) to left movement simultaneously, now, well group carrys out the rodless cavity that the oily branch road carrying out oil pipeline (3) connecting fluid compressing cylinder (6) rodless cavity by well group enters hydraulic jack (6), and the oil in hydraulic jack (6) rod chamber is pressed into petroleum pipeline (4) branch road after the supercharging of connecting fluid compressing cylinder (6) rod chamber, realizes supercharging oil transportation;
(4) circuit secondary break-in:
The piston movement of hydraulic pressure water vat (5), to high order end, touches left position limit switch (8), left position limit switch (8) control the first electric T-shaped valve (7), the second electric T-shaped valve (9) electromagnet again the commutation of electric and valve body, complete one-period;
(5) cycle is reciprocal:
Continuous repetition step (1) (2) (3) (4), realizes that well group is oily is constantly delivered to field, station by after hydraulic jack (6) supercharging by petroleum pipeline (4) after supercharging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510107520.7A CN104791212A (en) | 2015-03-12 | 2015-03-12 | Simple cluster type well group pressurization system and pressurization method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510107520.7A CN104791212A (en) | 2015-03-12 | 2015-03-12 | Simple cluster type well group pressurization system and pressurization method thereof |
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| CN104791212A true CN104791212A (en) | 2015-07-22 |
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| CN201510107520.7A Pending CN104791212A (en) | 2015-03-12 | 2015-03-12 | Simple cluster type well group pressurization system and pressurization method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051437A (en) * | 2016-07-15 | 2016-10-26 | 太重煤机有限公司 | Water hydraulic cylinder type forced lubrication system for rocker arm of coal cutter |
| CN111520108A (en) * | 2020-04-30 | 2020-08-11 | 成都百胜野牛科技有限公司 | Well group energy management method |
-
2015
- 2015-03-12 CN CN201510107520.7A patent/CN104791212A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051437A (en) * | 2016-07-15 | 2016-10-26 | 太重煤机有限公司 | Water hydraulic cylinder type forced lubrication system for rocker arm of coal cutter |
| CN106051437B (en) * | 2016-07-15 | 2018-12-28 | 太重煤机有限公司 | Rocker arm of coal mining machine hydraulic cylinder formula forcedlubricating system |
| CN111520108A (en) * | 2020-04-30 | 2020-08-11 | 成都百胜野牛科技有限公司 | Well group energy management method |
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Application publication date: 20150722 |
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