CN220348726U - Well cementation cement paste blending device with cleaning function - Google Patents
Well cementation cement paste blending device with cleaning function Download PDFInfo
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- CN220348726U CN220348726U CN202321557795.7U CN202321557795U CN220348726U CN 220348726 U CN220348726 U CN 220348726U CN 202321557795 U CN202321557795 U CN 202321557795U CN 220348726 U CN220348726 U CN 220348726U
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- 238000004140 cleaning Methods 0.000 title claims abstract description 55
- 239000004568 cement Substances 0.000 title claims abstract description 43
- 238000002156 mixing Methods 0.000 title claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 83
- 239000002002 slurry Substances 0.000 claims abstract description 58
- 238000010992 reflux Methods 0.000 claims abstract description 7
- 238000010926 purge Methods 0.000 claims description 12
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
- 238000009472 formulation Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- 230000002285 radioactive effect Effects 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000001739 density measurement Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model discloses a well cementation cement paste blending device with a cleaning function, and belongs to the technical field of exploration. The device comprises a metering tank, a water supply pump, a filter, a flowmeter, a mixer, a slurry mixing tank, a circulating pump, a densimeter, a plunger pump, a cleaning pipeline, a jet pump and a cleaning bypass; the metering tank is connected with the mixer through a water supply pipeline, a water supply pump, a first control valve, a filter and a flowmeter are arranged on the water supply pipeline, and the slurry mixing tank is connected with the circulating pump; the circulating pump outputs in two paths, one path is connected with the plunger pump through a grouting pipeline, and the other path is connected with the mixer through a reflux pipeline; the grouting pipeline is provided with a second control valve, and the return pipeline is provided with a densimeter and a third control valve; the cleaning pipeline is provided with a jet pump and a fourth control valve, one end of the cleaning pipeline is connected with the metering tank, and the other end of the cleaning pipeline is connected with a water supply pipeline between the first control valve and the filter; one end of the cleaning bypass is connected with a water supply pipeline between the mixer and the flowmeter, and the other end of the cleaning bypass is connected with a pipeline to be cleaned.
Description
Technical Field
The utility model belongs to the technical field of exploration, and particularly relates to a well cementation cement paste blending device with a cleaning function.
Background
The well drilling technology is continuously advanced, so that the progress of the well cementation technology is promoted, and the popularization and application of the new well cementation technology, the new technology and the new material promote the well cementation operation level and the well cementation quality to be improved year by year. Cementing is a process of setting a casing into a well to a predetermined depth, and then injecting cement slurry between the casing and the well wall by means of a cementing truck (sledge).
Because drilling is hundreds of meters shallow, thousands of meters deep, or even tens of meters deep, the casing and cement slurry are subjected to severe environments with high temperature and high pressure, and also are subjected to corrosion and crosstalk of underground oil, gas and water and other mediums, and various tests of acidizing, fracturing and other yield increasing measures in oil extraction operation. Thus, various properties of the well cementing slurry (such as viscosity, rheology, shear strength, uniformity, stability, etc.) have a direct impact on the quality of the well cementing.
The well cementing slurry is a high-abrasion medium, and the flow state and the flow rate of the cement slurry must be strictly controlled during operation. It is generally necessary to provide a densitometer and a flowmeter to detect the density and flow rate of the cement slurry, respectively, and control the flow rate of the cement slurry through corresponding valves to reduce the abrasion to the pipeline and also to suppress the generation of bubbles.
The prior art well cementing slurry mixing device can be described by referring to application number CN202120417815.5, which discloses a slurry mixing device comprising a slurry mixing tank, at least two mixers and a control system, wherein the slurry mixing tank is provided with an inlet and an outlet, the mixers are arranged at the inlet of the slurry mixing tank, each mixer comprises a water valve for controlling water inflow and an ash valve for controlling ash inflow, the control system comprises a device processor and a detection device and/or a manual control piece, the detection device is used for detecting slurry parameters and is in communication connection with the device processor, the manual control piece is used for manual operation by an operator and is in communication connection with the device processor, and the device processor is in communication connection with the water valve and the ash valve of the mixer so as to control water inflow and ash inflow of the mixer.
As shown in fig. 1, the conventional well cementing slurry mixing device comprises a metering tank 1, a water supply pump 2, a filter 3, a flowmeter 4, a mixer 5, a slurry mixing tank 6, a circulating pump 7, a densitometer 8, a plunger pump 9 and the like. Wherein, the metering tank 1 is connected with the water inlet of the mixer 5 through a water supply pipeline 11, the water supply pipeline 11 is sequentially provided with a water supply pump 2, a first control valve 21, a filter 3 and a flowmeter 4, the mixer 5 is arranged in the slurry mixing tank 6, and the slurry mixing tank 6 is connected with the circulating pump 7. The circulation pump 7 outputs two paths, one path is connected with the plunger pump 9 through a grouting pipeline 12, and the other path is connected with a slurry inlet of the mixer 5 through a backflow pipeline 13. The grouting line 12 is provided with a second control valve 22 and the return line 13 is provided with a densitometer 8 and a third control valve 23.
Because the setting speed of cement paste is very fast, if the densimeter is not cleaned in time, the cement paste can be caked on the inner wall of the densimeter, so that the density measurement is inaccurate and even the densimeter is blocked. The slurry tank, mixer, circulation pump and pipeline also need to be cleaned to prevent cement from caking and falling off into the pipeline to block the densimeter.
Disclosure of Invention
In order to solve the problems, the embodiment of the utility model provides a well cementation cement paste mixing device with a cleaning function, which can realize self-cleaning of the device, ensure the measurement precision of a densimeter and avoid the blockage of the device. The technical scheme is as follows:
the embodiment of the utility model provides a well cementation cement paste mixing device with a cleaning function, which comprises a metering tank 1, a water supply pump 2, a filter 3, a flowmeter 4, a mixer 5, a slurry mixing tank 6, a circulating pump 7, a densimeter 8 and a plunger pump 9; the metering tank 1 is connected with a water inlet of a mixer 5 through a water supply pipeline 11, the water supply pipeline 11 is sequentially provided with a water supply pump 2, a first control valve 21, a filter 3 and a flowmeter 4, the mixer 5 is arranged in a slurry mixing tank 6, and the slurry mixing tank 6 is connected with a circulating pump 7; the circulating pump 7 outputs two paths, one path is connected with the plunger pump 9 through a grouting pipeline 12, and the other path is connected with a slurry inlet of the mixer 5 through a backflow pipeline 13; the grouting pipeline 12 is provided with a second control valve 22, and the reflux pipeline 13 is provided with a densimeter 8 and a third control valve 23; the apparatus further comprises a purge line 14, a jet pump 10 and a purge bypass 15; the cleaning pipeline 14 is provided with a jet pump 10 and a fourth control valve 24, one end of the cleaning pipeline is connected with the metering tank 1, and the other end of the cleaning pipeline is connected with a water supply pipeline 11 between the first control valve 21 and the filter 3; one end of the purge bypass 15 is connected to the water supply line 11 between the mixer 5 and the flowmeter 4, and the other end thereof is connected to the pipe to be purged.
Further, a fifth control valve 25 is provided on the purge bypass 15 in the embodiment of the present utility model, and a sixth control valve 26 is provided on the water supply line 11 between the purge bypass 15 and the mixer 5.
Specifically, in the embodiment of the present utility model, the first control valve 21, the second control valve 22, the third control valve 23 and the fourth control valve 24 are all pneumatic butterfly valves, the fifth control valve 25 is a ball valve, and the sixth control valve 26 is a manual butterfly valve.
Further, the well cementation cement paste mixing device with the cleaning function in the embodiment of the utility model further comprises a water injection pipeline 16, wherein a water outlet is arranged at the bottom of the metering tank 1; the water outlet is provided with a seventh control valve 27 and is divided into three paths of output, wherein the first path of output is output to the water supply pipeline 11, the second path of output is output to the cleaning pipeline 14, and the third path of output is output to the water injection pipeline 16; the water injection line 16 is provided with an eighth control valve 28 and the other end is connected with the plunger pump 9.
Further, the well cementation cement paste blending device with the cleaning function in the embodiment of the utility model further comprises a backflow bypass 17; the circulating pump 7 is divided into three paths of output, wherein the first path of output is output to the grouting pipeline 12, the second path of output is output to the backflow pipeline 13, and the third path of output is output to the backflow bypass 17; the densitometer 8 and the third control valve 23 are arranged in sequence, the return bypass 17 is provided with a ninth control valve 29, and the other end of the return bypass is connected with a return line 13 between the densitometer 8 and the third control valve 23.
The water supply network 18 is provided with a tenth control valve 30, which is connected to the water inlet of the metering tank 1 via a line with an eleventh control valve 31, and which is connected via a line to the water supply line 11 between the water supply pump 2 and the first control valve 21.
Specifically, the seventh control valve 27, the eighth control valve 28, and the ninth control valve 29 in the embodiment of the present utility model are all pneumatic butterfly valves, and the tenth control valve 30 and the eleventh control valve 31 are all manual butterfly valves.
Specifically, the circulating pump 7 and the jet pump 10 in the embodiment of the present utility model are both centrifugal pumps, and the densitometer 8 is a non-radioactive pipeline densitometer.
The technical scheme provided by the embodiment of the utility model has the beneficial effects that: the embodiment of the utility model provides a well cementation cement paste mixing device with a cleaning function, which can realize self-cleaning of the device (comprising a mixer, a slurry mixing tank, a circulating pump, a flowmeter and a pipeline can be cleaned, and meanwhile, a pipeline (output by a cleaning bypass) outside the device can be cleaned), so that the measurement precision of a densimeter is ensured, and the blockage of the device can be avoided.
Drawings
FIG. 1 is a schematic diagram of a conventional well cementing slurry deployment apparatus;
fig. 2 is a schematic structural view of a well cementation cement paste formulation device with a cleaning function in the present embodiment when preparing cement paste;
fig. 3 is a schematic block diagram of a well cementation cement paste formulation device with a cleaning function in the present embodiment when preparing cement paste;
fig. 4 is a schematic structural view of the well cementation cement paste formulation device with the cleaning function in the present embodiment during cleaning;
fig. 5 is a schematic block diagram of a well cementation cement paste formulation device with a cleaning function in the present embodiment at the time of cleaning.
In the figure: 1 metering tank, 2 water supply pump, 3 filter, 4 flowmeter, 5 mixer, 6 slurry mixing tank, 7 circulating pump, 8 densimeter, 9 plunger pump, 10 jet pump;
11 water supply pipeline, 12 grouting pipeline, 13 cleaning pipeline, 14 cleaning bypass, 15 water injection pipeline, 16 reflux bypass and 17 water supply pipe network;
21 first control valve, 22 second control valve, 23 third control valve, 24 fourth control valve, 25 fifth control valve, 26 sixth control valve, 27 seventh control valve, 28 eighth control valve, 29 ninth control valve, 30 tenth control valve, 31 eleventh control valve, 32 twelfth control valve, 33 thirteenth control valve.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings, for the purpose of making the objects, technical solutions and advantages of the present utility model more apparent.
Example 1
Referring to fig. 2 to 5, embodiment 1 provides a well cementation cement paste formulation device with a cleaning function, which comprises a metering tank 1, a water supply pump 2, a filter 3, a flow meter 4, a mixer 5, a slurry mixing tank 6, a circulating pump 7, a densitometer 8, a plunger pump 9 and the like. The bottom of the metering tank 1 is connected to the water inlet of the mixer 5 by a water supply line 11. The water supply pipe 11 is provided with a water supply pump 2, a first control valve 21, a filter 3, a flowmeter 4, etc. in this order, the mixer 5 is provided in the slurry tank 6, the slurry tank 6 is connected with the circulation pump 7, and a thirteenth control valve 33 is provided on a drain outlet at the bottom thereof. The circulation pump 7 is divided into two paths of output (through corresponding valve gating), one path (output when the density of the cement paste meets the requirement) is connected with the plunger pump 9 through the grouting pipeline 12, and the other path (output when the density of the cement paste does not meet the requirement) is connected with the slurry inlet of the mixer 5 through the backflow pipeline 13. The grouting line 12 is provided with a second control valve 22 and the return line 13 is provided with a densitometer 8 and a third control valve 23. The opening and closing of the second control valve 22 and the third control valve 23 control the output of the circulation pump 7. The structure is basically the same as that of the existing well cementation cement paste mixing device, and the difference is that:
the well cementation cement paste formulation device in this embodiment further includes a purge line 14, a jet pump 10, a purge bypass 15, and the like. The cleaning line 14 is provided with a jet pump 10 and a fourth control valve 24, one end of which is connected to the metering tank 1 and the other end of which is connected to the water supply line 11 between the first control valve 21 and the filter 3. One end of the purge bypass 15 is connected to the water supply line 11 between the mixer 5 and the flowmeter 4 and the other end is connected to the line to be purged (there may be other auxiliary lines to be purged during the cementing operation; if not, the fifth control valve 25 is closed). A fifth control valve 25 is provided on the purge bypass 15, and a sixth control valve 26 is provided on the water supply line 11 between the purge bypass 15 and the mixer 5.
Referring to fig. 2-3, the process of outputting cement slurry is: the seventh control valve 27, the twelfth control valve 32, the first control valve 21, the sixth control valve 26 and the third control valve 23 are opened, clean water in the metering tank 1 is fed into the slurry mixing tank 6 through the water supply pump 2, the filter 3, the flowmeter 4 and the mixer 5, dry cement is added into the slurry mixing tank 6, the mixer 5 mixes the clean water with cement slurry in the return pipeline 13, the circulating pump 7 outputs the cement slurry, the densimeter 8 detects the density of the cement slurry, after the density is qualified, the second control valve 22 is opened, and the cement slurry is output to the plunger pump 9; if not, the second control valve 22 is closed and the cement slurry is only delivered to the return line 13.
Referring to fig. 4-5, the cleaning process is: the seventh control valve 27, the fourth control valve 24, the sixth control valve 26, the fifth control valve 25 and the third control valve 23 are opened, and the clean water in the metering tank 1 is returned to the slurry mixing tank 6 through the jet pump 10, the filter 3, the flow meter 4, the mixer 5, the slurry mixing tank 6, the circulation pump 7 and the flow meter 4. The wash water of the slurry tank 6 remains as a raw material of the cement slurry or the thirteenth control valve 33 is opened for the sewage disposal.
Specifically, in the embodiment of the present utility model, the first control valve 21, the second control valve 22, the third control valve 23, and the fourth control valve 24 are all pneumatic butterfly valves, the fifth control valve 25 is a ball valve, and the sixth control valve 26 is a manual butterfly valve. The flow rates of the fifth control valve 25 and the sixth control valve 26 are manually controlled to ensure the effect of flushing the well cementing slurry formulation apparatus and the pipeline to be flushed.
The water supply network 18 (for supplying clean water) is provided with a tenth control valve 30, which is connected to the water inlet of the metering tank 1 via a line with an eleventh control valve 31 (for supplying water to the metering tank 1 when opened), and which is connected to the water supply line 11 between the water supply pump 2 and the first control valve 21 via a line (which can supply water directly to the mixer 5). Wherein the tenth control valve 30 and the eleventh control valve 31 are both manual butterfly valves.
Specifically, the circulation pump 7 (specification: 5×6 centrifugal pump) and the jet pump 10 (specification: 3×4 centrifugal pump) in the embodiment of the present utility model are both centrifugal pumps, and the densitometer 8 is a non-radioactive pipe densitometer.
Preferably, a ball valve is provided at the outlet of the densitometer 8 in this embodiment to manually control the pressure of the cement slurry passing through the densitometer 8 to ensure the accuracy of the measurement.
Example 2
Referring to fig. 2 and 4, embodiment 2 provides a well cementing slurry mixing device with cleaning function, which has a structure substantially the same as that of embodiment 1, except that: the well cementation cement paste mixing device with the cleaning function in the embodiment further comprises a water injection pipeline 16, and a water outlet is formed in the bottom of the metering tank 1. The water outlet is provided with a seventh control valve 27 and is divided into three output paths, wherein the first output path is output to the water supply pipeline 11, the second output path is output to the cleaning pipeline 14, and the third output path is output to the water injection pipeline 16. The water injection line 16 is provided with an eighth control valve 28 and the other end thereof is connected to the plunger pump 9. In the present embodiment, a predetermined amount of clear water may be directly output to the plunger pump 9; at this time, the seventh control valve 27 and the eighth control valve 28 are opened. Specifically, the seventh control valve 27 and the eighth control valve 28 are each a pneumatic butterfly valve.
Example 3
Referring to fig. 2 and 4, embodiment 3 provides a well cementing slurry mixing device with cleaning function, which has a structure substantially the same as that of embodiment 1, except that: the cementing slurry deployment apparatus with cleaning function in this embodiment further includes a return bypass 17 to reduce the flow of the return line 13. The circulating pump 7 is divided into three paths of output, wherein the first path of output is output to the grouting pipeline 12, the second path of output is output to the backflow pipeline 13, and the third path of output is output to the backflow bypass 17. The densitometer 8 and the third control valve 23 are arranged in sequence, a ninth control valve 29 is arranged on the return bypass 17 and the other end thereof is connected with the return line 13 between the densitometer 8 and the third control valve 23. When the cement slurry is outputted, the ninth control valve 29 is opened. During cleaning, the ninth control valve 29 is closed or partially opened. The ninth control valve 29 is a pneumatic butterfly valve.
The "first" and "second" … … "and" thirteenth "in this patent are only used for distinguishing, and have no other special meaning.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.
Claims (8)
1. The well cementation cement paste mixing device with the cleaning function comprises a metering tank (1), a water supply pump (2), a filter (3), a flowmeter (4), a mixer (5), a cement paste mixing tank (6), a circulating pump (7), a densimeter (8) and a plunger pump (9); the metering tank (1) is connected with a water inlet of the mixer (5) through a water supply pipeline (11), the water supply pipeline (11) is sequentially provided with a water supply pump (2), a first control valve (21), a filter (3) and a flowmeter (4), the mixer (5) is arranged in the slurry mixing tank (6), and the slurry mixing tank (6) is connected with the circulating pump (7); the circulating pump (7) outputs in two paths, one path is connected with the plunger pump (9) through a grouting pipeline (12), and the other path is connected with a slurry inlet of the mixer (5) through a backflow pipeline (13); a second control valve (22) is arranged on the grouting pipeline (12), and a densimeter (8) and a third control valve (23) are arranged on the reflux pipeline (13); characterized in that the device further comprises a purge line (14), a jet pump (10) and a purge bypass (15); the cleaning pipeline (14) is provided with a jet pump (10) and a fourth control valve (24), one end of the cleaning pipeline is connected with the metering tank (1), and the other end of the cleaning pipeline is connected with a water supply pipeline (11) between the first control valve (21) and the filter (3); one end of the cleaning bypass (15) is connected with a water supply pipeline (11) between the mixer (5) and the flowmeter (4), and the other end of the cleaning bypass is connected with a pipeline to be cleaned.
2. A well cementing slurry formulation apparatus with a cleaning function according to claim 1, wherein a fifth control valve (25) is provided on the cleaning bypass (15), and a sixth control valve (26) is provided on the water supply line (11) between the cleaning bypass (15) and the mixer (5).
3. The well cementing slurry mixing device with the cleaning function according to claim 2, wherein the first control valve (21), the second control valve (22), the third control valve (23) and the fourth control valve (24) are all pneumatic butterfly valves, the fifth control valve (25) is a ball valve, and the sixth control valve (26) is a manual butterfly valve.
4. The well cementation cement paste mixing device with the cleaning function according to claim 1, wherein the device further comprises a water injection pipeline (16), and a water outlet is arranged at the bottom of the metering tank (1); the water outlet is provided with a seventh control valve (27) and is divided into three paths of outputs, wherein the first path of output is output to a water supply pipeline (11), the second path of output is output to a cleaning pipeline (14), and the third path of output is output to a water injection pipeline (16); an eighth control valve (28) is arranged on the water injection pipeline (16) and the other end of the water injection pipeline is connected with the plunger pump (9).
5. A well cementing slurry deployment apparatus having a cleanout function according to claim 4, further comprising a return bypass (17); the circulating pump (7) is divided into three paths of output, wherein the first path of output is output to the grouting pipeline (12), the second path of output is output to the backflow pipeline (13), and the third path of output is output to the backflow bypass (17); the densimeter (8) and the third control valve (23) are sequentially arranged, a ninth control valve (29) is arranged on the reflux bypass (17), and the other end of the reflux bypass is connected with a reflux pipeline (13) between the densimeter (8) and the third control valve (23).
6. A well cementing slurry formulation apparatus with a cleaning function according to claim 5, wherein a tenth control valve (30) is provided on the water supply network (18), which is connected to the water inlet of the metering tank (1) via a pipeline with an eleventh control valve (31), which is connected to the water supply line (11) between the water supply pump (2) and the first control valve (21) via a pipeline.
7. The well cementing slurry preparation device with the cleaning function according to claim 6, wherein the seventh control valve (27), the eighth control valve (28) and the ninth control valve (29) are pneumatic butterfly valves, and the tenth control valve (30) and the eleventh control valve (31) are manual butterfly valves.
8. The well cementation cement paste mixing device with the cleaning function according to claim 1, wherein the circulating pump (7) and the jet pump (10) are both centrifugal pumps, and the densitometer (8) is a non-radioactive pipeline densitometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321557795.7U CN220348726U (en) | 2023-06-19 | 2023-06-19 | Well cementation cement paste blending device with cleaning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321557795.7U CN220348726U (en) | 2023-06-19 | 2023-06-19 | Well cementation cement paste blending device with cleaning function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220348726U true CN220348726U (en) | 2024-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321557795.7U Active CN220348726U (en) | 2023-06-19 | 2023-06-19 | Well cementation cement paste blending device with cleaning function |
Country Status (1)
| Country | Link |
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| CN (1) | CN220348726U (en) |
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2023
- 2023-06-19 CN CN202321557795.7U patent/CN220348726U/en active Active
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