CN210919010U - Intelligent underground layered water injection device - Google Patents
Intelligent underground layered water injection device Download PDFInfo
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- CN210919010U CN210919010U CN202020918322.5U CN202020918322U CN210919010U CN 210919010 U CN210919010 U CN 210919010U CN 202020918322 U CN202020918322 U CN 202020918322U CN 210919010 U CN210919010 U CN 210919010U
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Abstract
The utility model discloses an underground intelligent stratified water injection device, which belongs to the field of stratified water injection of oil and gas fields, in order to solve the technical problem of timely adjusting the flow rate of layered water injection according to the change of the stratum, the outer protecting pipe is sleeved outside the central pipe, the upper end and the lower end of the outer protecting pipe are respectively connected with an upper joint and a lower joint which are communicated with two ends of the central pipe, the side pipe is positioned on one side of the central pipe and is communicated with the central pipe through a first overflowing channel, a flow measuring assembly is arranged in the side pipe and is used for monitoring the water flow, four short sections are all positioned in an annular space between the central pipe and the outer protecting pipe, the side pipe is communicated with a first short section through a second overflowing channel, a water nozzle adjusting assembly is arranged in the first short section in a sealing manner, a sealing assembly is arranged in the second short section in a sealing manner, a junction box is arranged in the; the seal checking component, the water nozzle adjusting component, the flow measuring component and the overvoltage current-limiting protection component are connected with the junction box.
Description
Technical Field
The utility model belongs to oil gas field layering water injection field, concretely relates to intelligence layering water injection device in pit.
Background
In the production process of oil fields, in order to improve the recovery rate of crude oil, a water injection process is mostly adopted to supplement formation energy.
At present, most oil fields still adopt a conventional eccentric or concentric layered water injection process, a measuring and regulating instrument needs to be periodically put in to regulate a water nozzle, the labor intensity is high, the efficiency is low, the well blocking risk of the measuring and regulating instrument exists, the conventional cable measuring and regulating mode cannot acquire water injection information of each layer underground in real time, the layered water injection flow cannot be timely regulated according to stratum changes, and the requirement of injection allocation amount is met.
Disclosure of Invention
In view of this, the main objective of the present invention is to provide an intelligent zonal injection device for underground water.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
the utility model provides an underground intelligent stratified water injection device, which is provided with a plurality of underground devices, a packer is arranged between each device, the device comprises an upper joint, an outer protecting pipe, a lower joint, a central pipe, a side pipe, a first short section, a second short section, a third short section and a fourth short section, the outer protecting pipe is sleeved outside the central pipe, the upper end and the lower end of the outer protecting pipe are respectively connected with the upper joint and the lower joint which are communicated with the two ends of the central pipe, the side pipe is positioned at one side of the central pipe and is communicated with the central pipe through a first overflowing channel, a short section measuring assembly is arranged in the side pipe and is used for monitoring water flow, the first short section, the second short section, the third short section and the fourth short section are positioned in an annular space between the central pipe and the outer protecting pipe, the side pipe is communicated with the first short section through a second overflowing channel, the first short section is internally sealed and provided with a water nozzle adjusting assembly which is used, a seal checking assembly is arranged in the second short section in a sealing mode and used for monitoring the pressure inside and outside the pipe, a junction box is arranged in the third short section in a sealing mode, and an overvoltage current-limiting protection assembly is arranged in the fourth short section in a sealing mode; the seal checking assembly, the water nozzle adjusting assembly, the flow measuring assembly and the overvoltage current-limiting protection assembly are connected with the junction box.
In the scheme, the water nozzle adjusting assembly comprises a motor, a transmission assembly and a water nozzle, wherein the output end of the motor is connected with the transmission assembly, and the water nozzle is connected with the transmission assembly and used for moving up and down under the driving of the motor to adjust the flow area of the water outlet; the motor is connected with the junction box.
In the above scheme, the seal checking assembly comprises two pressure sensors and a measuring circuit, wherein one of the two pressure sensors is arranged in a central channel of the central tube and used for monitoring the pressure in the central tube, the other pressure sensor is arranged in a pressure taking port of the upper joint and used for monitoring the pressure outside the central tube, the two pressure sensors are connected with the measuring circuit, and the measuring circuit is connected with the junction box.
In the above scheme, the flow measurement assembly includes a flow probe and a flow signal processing circuit, the flow probe is arranged in the side pipe and connected with the flow signal processing circuit, and the flow signal processing circuit is connected with the junction box.
In the above scheme, the overvoltage current-limiting protection component includes a first triode Q3, a second triode Q5, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R9, a first voltage regulator D3, a second voltage regulator D4, a third voltage regulator D5, a fourth voltage regulator D6, and a MOS transistor Q4, an S end of the MOS transistor Q4 is connected with a cable through the second resistor R2, and a D end of the MOS transistor Q4 is connected with a junction box; the second resistor R2 is connected with a first resistor R1 in parallel, the 1 st end of the first triode Q3 is connected with one end of the second resistor R2, the 2 nd end is connected with the G end of the MOS tube Q4, one path of the 3 rd end is connected with the other end of the second resistor R2 through a second voltage regulator tube D4, the other path is connected with the C end of the second triode Q5, the E end of the second triode Q5 is connected between the other end of the second resistor R2 and a cable, the B end is connected with the ground through a fifth resistor R9, a third voltage regulator tube D5 and a fourth voltage regulator tube D6 in sequence, a first voltage regulator tube D3 and a fifth resistor R9 are connected in parallel between the first triode Q3 and the MOS tube Q4 in sequence, and one end of the fifth resistor R9 is connected with the ground through a fourth resistor R4.
In the above scheme, the current-limiting protection secondary sealing protective tube is further included, the current-limiting protection secondary sealing protective tube is located in the fourth short section, and a current-limiting protection circuit board is arranged in the current-limiting protection secondary sealing protective tube in a sealing mode.
Compared with the prior art, the utility model discloses integrated test and flow control, through cable and ground monitoring facilities real-time communication, realize the flow is injected in the layering in the pit, the real-time supervision of pressure and water injection well choke aperture, and pass through the cable real-time transmission to ground to the data that record, can set up different injection allocation strategies with geological data, and then really realize the water injection that becomes more meticulous, reduce intensity of labour, improve water injection allotment efficiency, reduce construction cost, and simultaneously, excessive pressure current-limiting protection subassembly can increase the one deck protection between this layer of instrument and bus, prevent that this layer of instrument from damaging the normal work that influences other layers of instruments.
Drawings
Fig. 1 is a schematic structural view of an intelligent downhole stratified water injection device according to an embodiment of the present invention;
FIG. 2 is a schematic structural view illustrating the outer sheath of the underground intelligent stratified water injection apparatus according to the embodiment of the present invention;
FIG. 3 is a sectional view taken along line G-G of FIG. 2;
FIG. 4 is a circuit diagram of an overvoltage current-limiting protection component in an intelligent downhole stratified water injection apparatus according to an embodiment of the present invention;
FIG. 5 is an isometric cross-sectional view of FIG. 2;
FIG. 6 is a partial cross-sectional view of FIG. 5;
in the figure, an upper joint 1, an outer protecting pipe 2, a lower joint 3, a central pipe 4, a side pipe 5, a first short section 6, a second short section 7, a third short section 8, a fourth short section 9, a current-limiting protection secondary sealing protecting pipe 10, a water outlet 11, a pressure tapping port 12, a central channel 41, a first overflowing channel 51, a second overflowing channel 52, a water nozzle adjusting component 61, a motor 611, a transmission component 612, a water nozzle 613 and a current-limiting protection circuit board 1001.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The embodiment of the utility model provides an intelligence layering water injection device in pit, as shown in figure 1-3, the device sets up a plurality of in the pit, sets up the packer between each device, the device includes top connection 1, outer pillar 2, lower clutch 3, center tube 4, side pipe 5, first nipple 6, second nipple 7, third nipple 8, fourth nipple 9, outer pillar 2 is established to the outside cover of center tube 4, and the upper and lower end of outer pillar 2 is connected with top connection 1 and lower clutch 3 that set up in center tube 4 both ends intercommunication respectively, side pipe 5 is located one side of center tube 4 and communicates with center tube 4 through first overflow passageway 51, set up the subassembly in the side pipe 5 and be used for monitoring the nipple, first nipple 6, second nipple 7, third nipple 8, fourth nipple 9 all are located the annular space between center tube 4 and outer pillar 2, the side pipe 5 is communicated with the first short section 6 through a second overflowing channel 52, a water nozzle adjusting assembly 61 is arranged in the first short section 6 in a sealing mode and used for changing the flowing area of the water outlet 11 according to the water flow condition, a seal checking assembly is arranged in the second short section 7 in a sealing mode and used for monitoring the pressure inside and outside the pipe, a junction box is arranged in the third short section 8 in a sealing mode, and an overvoltage current-limiting protection assembly is arranged in the fourth short section 9 in a sealing mode; the seal checking assembly, the water nozzle adjusting assembly 61, the flow measuring assembly and the overvoltage current-limiting protection assembly are connected with the junction box and sealed by adopting a sealing rubber plug; thus, the utility model discloses integrated test and flow control, through cable and ground monitoring facilities real-time communication, realize the flow is injected to the layering in the pit, the real-time supervision of pressure and water injection well choke aperture, and pass through cable real-time transmission to ground to the data that record, can set up different injection allocation strategies with geological data, and then really realize the water injection that becomes more meticulous, reduce intensity of labour, improve water injection allotment efficiency, reduce construction cost, and simultaneously, the excessive pressure current-limiting protection subassembly can increase the one deck protection between this layer of instrument and bus, prevent that this layer of instrument from damaging the normal work that influences other layers of instruments.
And each underground layer is provided with an underground intelligent layered water injection device, so that the underground layered injection flow, the pressure and the opening degree of the water nozzle can be monitored in real time.
The water nozzle adjusting component 61 comprises a motor 611, a transmission component 612 and a water nozzle 613, the output end of the motor 611 is connected with the transmission component 612, and the water nozzle 613 is connected with the transmission component 612 and used for moving up and down under the driving of the motor 611 to adjust the flow area of the water outlet 11; the motor 611 is connected to a junction box.
The transmission assembly 612 is a screw pair, the screw is fixed, the nut drives the water nozzle 613 to move up and down, and the area of the water outlet is adjusted.
The seal checking assembly comprises two pressure sensors and a measuring circuit, wherein one of the two pressure sensors is arranged in a central channel 41 of the central tube 4 and used for monitoring the pressure in the central tube, the other pressure sensor is arranged in a pressure taking port 12 of the upper joint 1 and used for monitoring the pressure outside the central tube, the two pressure sensors are connected with the measuring circuit, and the measuring circuit is connected with the junction box.
Specifically, two pressure sensors are respectively used for measuring the pressure data change in the oil pipe and in the oil sleeve annulus (outside the pipe), and the action of the water nozzle adjusting component is matched to realize the seal checking function, wherein the pressure of the pressure measuring port in the oil pipe is directly measured from the central channel 41, and the pressure measuring port 12 outside the pipe is designed on the upper joint 1.
The flow measurement assembly comprises a flow probe and a flow signal processing circuit, the flow probe is arranged in the side pipe 5 and connected with the flow signal processing circuit, and the flow signal processing circuit is connected with the junction box.
Specifically, the flow probe can be a differential pressure type flow probe, and also can be an electromagnetic type or other types of flow probes, and when water flows through the inside of the flow measurement assembly, the flow measurement assembly can complete the volume flow measurement of the water.
As shown in fig. 4, the overvoltage current-limiting protection component includes a first triode Q3, a second triode Q5, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R9, a first voltage regulator D3, a second voltage regulator D4, a third voltage regulator D5, a fourth voltage regulator D6, and a MOS transistor Q4, wherein an S terminal of the MOS transistor Q4 is connected with a cable through the second resistor R2, and a D terminal is connected with a junction box; the second resistor R2 is connected with a first resistor R1 in parallel, the 1 st end of the first triode Q3 is connected with one end of the second resistor R2, the 2 nd end is connected with the G end of the MOS tube Q4, one path of the 3 rd end is connected with the other end of the second resistor R2 through a second voltage regulator tube D4, the other path is connected with the C end of the second triode Q5, the E end of the second triode Q5 is connected between the other end of the second resistor R2 and a cable, the B end is connected with the ground through a fifth resistor R9, a third voltage regulator tube D5 and a fourth voltage regulator tube D6 in sequence, a first voltage regulator tube D3 and a fifth resistor R9 are connected in parallel between the first triode Q3 and the MOS tube Q4 in sequence, and one end of the fifth resistor R9 is connected with the ground through a fourth resistor R4.
The utility model discloses a normal operating voltage scope is 50~60V, and when voltage was greater than 72V in the twinkling of an eye, triode Q5's projecting pole E switched on with collecting electrode C, and the pressure drop is 0.6V, and Q4's VSG voltage was less than for 0.6V and opens threshold voltage VGS (th) this moment, and Q4's SD ends, and no voltage output plays overvoltage protection effect.
First triode Q3, first resistance R1, second resistance R2, second stabilivolt D4 and MOS pipe Q4, third resistance R3, fourth resistance R4 constitute excessive pressure current-limiting protection circuit, the utility model discloses a normal operating current is 30~35mA, and when the electric current > 40mA, Q4's VSG < VGS (th), Q4's SD cuts off, and no voltage output plays the current-limiting protection effect.
Further, the overvoltage protection device further comprises a current-limiting protection secondary sealing protective tube 10, the current-limiting protection secondary sealing protective tube 10 is located in the fourth short section 9, a current-limiting protection circuit board 1001 is arranged in the current-limiting protection secondary sealing protective tube 10 in a sealing mode, and the current-limiting protection circuit board 1001 is used for integrating overvoltage current-limiting protection components.
The utility model discloses a working process:
during the operation, the utility model discloses an oil pipe transport to predetermined injection allocation position (according to the layering quantity confirm the device quantity of dividing of going into down), communication cable follows the oil pipe outer wall and communicates to well head ground monitoring facilities always.
During normal injection allocation, as shown in fig. 5 and 6, water flows through the central tube 4, flows into the side tube 5 where the flow measurement assembly is located through the first flow passage 51, then enters the first short section 6 where the water nozzle adjustment assembly 61 is located through the second flow passage 52 of the side tube 5, and enters the formation from the water outlet 11 after passing through the water nozzle 613, in the process, the flow measurement assembly measures the injection amount, and the water nozzle adjustment assembly 61 adjusts the opening of the water nozzle 613 through the motor 611, so as to control the injection amount.
If the injection amount is too big is joined in marriage to current layer, then ground control personnel send the order, and the control motor reduces the aperture of water injection well choke 613, and then reduces the injection amount, otherwise then increases the aperture of water injection well choke 613, and whole journey need not the test vehicle and goes the well site and adjust, greatly reduced intensity of labour practices thrift the cost.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (6)
1. An underground intelligent layered water injection device is characterized in that a plurality of devices are arranged underground, a packer is arranged between each device, the device comprises an upper joint, an outer protecting pipe, a lower joint, a central pipe, a side pipe, a first short section, a second short section, a third short section and a fourth short section, the outer protecting pipe is sleeved outside the central pipe, the upper end and the lower end of the outer protecting pipe are respectively connected with the upper joint and the lower joint which are communicated with the two ends of the central pipe, the side pipe is positioned on one side of the central pipe and communicated with the central pipe through a first overflowing channel, a flow measuring assembly is arranged in the side pipe and used for monitoring water flow, the first short section, the second short section, the third short section and the fourth short section are positioned in an annular space between the central pipe and the outer protecting pipe, the side pipe is communicated with the first short section through a second overflowing channel, a water nozzle adjusting assembly is arranged in the first short section in an internal sealing mode and used for changing the flow area size, a seal checking assembly is arranged in the second short section in a sealing mode and used for monitoring the pressure inside and outside the pipe, a junction box is arranged in the third short section in a sealing mode, and an overvoltage current-limiting protection assembly is arranged in the fourth short section in a sealing mode; the seal checking assembly, the water nozzle adjusting assembly, the flow measuring assembly and the overvoltage current-limiting protection assembly are connected with the junction box.
2. The device for intelligent layered water injection underground according to claim 1, wherein the water nozzle adjusting assembly comprises a motor, a transmission assembly and a water nozzle, the output end of the motor is connected with the transmission assembly, and the water nozzle is connected with the transmission assembly and used for adjusting the size of the flow area of the water outlet in an up-and-down movement manner under the driving of the motor; the motor is connected with the junction box.
3. The device of claim 1 or 2, wherein the seal inspection assembly comprises two pressure sensors and a measuring circuit, one of the two pressure sensors is arranged in the central channel of the central pipe and used for monitoring the pressure in the central pipe, the other pressure sensor is arranged in the pressure taking port of the upper joint and used for monitoring the pressure outside the central pipe, and the two pressure sensors are both connected with the measuring circuit which is connected with the junction box.
4. The device of claim 3, wherein the flow measurement assembly comprises a flow probe and a flow signal processing circuit, the flow probe is arranged in the side pipe and is connected with the flow signal processing circuit, and the flow signal processing circuit is connected with the junction box.
5. The underground intelligent layered water injection device according to claim 4, wherein the overvoltage current-limiting protection component comprises a first triode Q3, a second triode Q5, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R9, a first voltage regulator D3, a second voltage regulator D4, a third voltage regulator D5, a fourth voltage regulator D6 and an MOS tube Q4, wherein the S end of the MOS tube Q4 is connected with a cable through the second resistor R2, and the D end of the MOS tube Q4 is connected with a junction box; the second resistor R2 is connected with a first resistor R1 in parallel, the 1 st end of the first triode Q3 is connected with one end of the second resistor R2, the 2 nd end is connected with the G end of the MOS tube Q4, one path of the 3 rd end is connected with the other end of the second resistor R2 through a second voltage regulator tube D4, the other path is connected with the C end of the second triode Q5, the E end of the second triode Q5 is connected between the other end of the second resistor R2 and a cable, the B end is connected with the ground through a fifth resistor R9, a third voltage regulator tube D5 and a fourth voltage regulator tube D6 in sequence, a first voltage regulator tube D3 and a fifth resistor R9 are connected in parallel between the first triode Q3 and the MOS tube Q4 in sequence, and one end of the fifth resistor R9 is connected with the ground through a fourth resistor R4.
6. The device of claim 5, further comprising a secondary protection pipe with a current-limiting protection, wherein the secondary protection pipe with a current-limiting protection is located in the fourth short section, and a current-limiting protection circuit board is arranged in the secondary protection pipe with a current-limiting protection in a sealing manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020918322.5U CN210919010U (en) | 2020-05-27 | 2020-05-27 | Intelligent underground layered water injection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020918322.5U CN210919010U (en) | 2020-05-27 | 2020-05-27 | Intelligent underground layered water injection device |
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| CN210919010U true CN210919010U (en) | 2020-07-03 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111561302A (en) * | 2020-07-16 | 2020-08-21 | 西安洛科电子科技股份有限公司 | Intelligent water distributor capable of achieving throwing and fishing wave codes communication |
| CN117248872A (en) * | 2023-11-17 | 2023-12-19 | 贵州航天凯山石油仪器有限公司 | Underground integrated intelligent injection allocation device for realizing one allocation and two allocation and measuring and adjusting method |
| CN117569781A (en) * | 2024-01-16 | 2024-02-20 | 西安洛科电子科技股份有限公司 | One-sealing double-matching intelligent water injection instrument |
-
2020
- 2020-05-27 CN CN202020918322.5U patent/CN210919010U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111561302A (en) * | 2020-07-16 | 2020-08-21 | 西安洛科电子科技股份有限公司 | Intelligent water distributor capable of achieving throwing and fishing wave codes communication |
| CN117248872A (en) * | 2023-11-17 | 2023-12-19 | 贵州航天凯山石油仪器有限公司 | Underground integrated intelligent injection allocation device for realizing one allocation and two allocation and measuring and adjusting method |
| CN117248872B (en) * | 2023-11-17 | 2024-02-06 | 贵州航天凯山石油仪器有限公司 | Underground integrated intelligent injection allocation device for realizing one allocation and two allocation and measuring and adjusting method |
| CN117569781A (en) * | 2024-01-16 | 2024-02-20 | 西安洛科电子科技股份有限公司 | One-sealing double-matching intelligent water injection instrument |
| CN117569781B (en) * | 2024-01-16 | 2024-04-12 | 西安洛科电子科技股份有限公司 | One-sealing double-matching intelligent water injection instrument |
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