CN219654658U - Vertical pipe pressure measurement system for oilfield well control equipment - Google Patents
Vertical pipe pressure measurement system for oilfield well control equipment Download PDFInfo
- Publication number
- CN219654658U CN219654658U CN202120861904.9U CN202120861904U CN219654658U CN 219654658 U CN219654658 U CN 219654658U CN 202120861904 U CN202120861904 U CN 202120861904U CN 219654658 U CN219654658 U CN 219654658U
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- riser
- pressure sensor
- riser pressure
- measurement system
- well control
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- 238000009530 blood pressure measurement Methods 0.000 title claims abstract description 22
- 239000002002 slurry Substances 0.000 claims abstract description 26
- 238000007789 sealing Methods 0.000 claims description 20
- 238000013016 damping Methods 0.000 claims description 15
- 239000010720 hydraulic oil Substances 0.000 claims description 15
- -1 polytetrafluoroethylene Polymers 0.000 claims description 11
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 10
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 10
- 210000002445 nipple Anatomy 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 8
- 239000002775 capsule Substances 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 210000004907 gland Anatomy 0.000 claims description 5
- 230000007246 mechanism Effects 0.000 claims description 5
- 238000012546 transfer Methods 0.000 claims description 2
- 239000012528 membrane Substances 0.000 claims 3
- 238000005553 drilling Methods 0.000 abstract description 6
- 238000005259 measurement Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 26
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 239000010408 film Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 229910052731 fluorine Inorganic materials 0.000 description 3
- 239000011737 fluorine Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 235000010987 pectin Nutrition 0.000 description 1
- 229920001277 pectin Polymers 0.000 description 1
- 239000001814 pectin Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a stand pipe pressure measurement system for oil field well control equipment, which comprises a stand pipe pressure sensor arranged on a slurry stand pipe, wherein an output port of the stand pipe pressure sensor is connected with a stand pipe pressure gauge through a connecting pipeline, the stand pipe pressure gauge is arranged in an operation room, and can transmit pressure values to the stand pipe pressure gauge through remote measurement of the sensor, so that the slurry pump pressure gauge and the stand pipe pressure gauge are replaced, the stand pipe pressure sensor or a 1:1 stand pipe sensor is adopted as a pressure source, and pressure conduction is carried out through a high-pressure rubber pipe, so that the short-distance observation of the pressure values can be realized, and loss and accidents caused by remote errors are avoided; and can be matched with a drilling multi-parameter instrument according to the requirements of users, thereby realizing the work of data acquisition, recording and the like.
Description
Technical Field
The utility model relates to the technical field of oilfield well control, in particular to a stand pipe pressure measurement system for oilfield well control equipment.
Background
In the oil extraction process of the oil field, the pressure of the slurry pump needs to be focused and monitored in real time, the existing monitoring device mainly comprises a slurry pump pressure gauge and a riser pressure gauge, the slurry pump is mainly applied to a drilling machine in a matching way, and when the slurry pump is matched with a non-excavation drilling machine and the like, an operator cannot easily observe the numerical value of the pressure gauge due to the original image of the installation position of the slurry pump, so that the production process is influenced.
Disclosure of Invention
In view of the foregoing drawbacks or disadvantages, it is an object of the present utility model to provide a riser pressure measurement system for an oilfield well control device.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
the riser pressure measurement system for the oilfield well control equipment comprises a detection valve arranged at an outlet of a slurry pump, wherein one outlet of the detection valve is connected with a first riser pressure sensor for detecting low pressure, and the other outlet of the detection valve is connected with a second riser pressure sensor for detecting high pressure; the output ends of the first riser pressure sensor and the second riser pressure sensor are connected with a riser pressure gauge, and the riser pressure gauge is installed in the operation chamber.
The first riser pressure sensor is a rubber cup type riser pressure sensor.
The rubber cup type riser pressure sensor comprises: the capsule is installed in the cylinder body through a rectangular sealing ring, a wing nut and a gland, and the upper end of the cylinder body is connected with a rubber tube assembly and a quick connector 9.
The second riser pressure sensor is a piston riser pressure sensor.
The piston type riser pressure sensor comprises: the second cylinder body, the joint is installed to second cylinder body lower extreme, install coupling mechanism on the second cylinder body, install the piston in the cavity of second cylinder body, the piston lower extreme is installed through lock nut and is passed through the rubber cup.
The second cylinder body is internally provided with hydraulic oil No. 0, and the transmission rubber cup is internally provided with hydraulic oil No. 0.
The first vertical pipe pressure sensor and the second vertical pipe pressure sensor are both installed on a slurry vertical pipe pipeline, a round hole is formed in the slurry vertical pipe pipeline, a threaded nipple is fixedly arranged on the round hole, and the first vertical pipe pressure sensor and the second vertical pipe pressure sensor are installed in the threaded nipple.
And a thin film belt is arranged on the threaded nipple.
The film strip is a polytetrafluoroethylene film strip.
The riser pressure gauge comprises a direct-connection pressure gauge and a damping pressure gauge, and when the damping pressure gauge is used, a damping valve is further arranged between the riser pressure gauge and the riser pressure sensor
Compared with the prior art, the utility model has the beneficial effects that:
the utility model provides a stand pipe pressure measurement system for oil field well control equipment, which can transmit pressure values to a stand pipe pressure meter through remote measurement of a sensor, replaces a slurry pump pressure meter and the stand pipe pressure meter, adopts a stand pipe pressure sensor or a 1:1 stand pipe sensor as a pressure source, and can realize close-range observation of the pressure values through pressure conduction of a high-pressure rubber pipe, thereby avoiding loss and accidents caused by remote errors; and can be matched with a drilling multi-parameter instrument according to the requirements of users, thereby realizing the work of data acquisition, recording and the like.
Drawings
FIG. 1 is a block diagram of a riser pressure measurement system for an oilfield well control device of the present utility model;
FIG. 2 is a schematic diagram of the structure of the rubber cup type riser pressure sensor of the present utility model;
FIG. 3 is a schematic diagram of a piston type standpipe pressure sensor of the present utility model;
FIG. 4 is a schematic diagram of the connection structure of the damping pressure gauge of the present utility model;
FIG. 5 is a schematic diagram of the operation of the damped pressure gauge of the present utility model;
fig. 6 is a schematic diagram of the working process of the direct-connection pressure gauge of the utility model.
Detailed Description
The present utility model now will be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.
As shown in fig. 1, the utility model provides a riser pressure measurement system for oilfield well control equipment, which comprises a detection valve 1 arranged at the outlet of a slurry pump, wherein one outlet of the detection valve 1 is connected with a first riser pressure sensor 2 for detecting low pressure, and the other outlet is connected with a second riser pressure sensor 3 for detecting high pressure; the output ends of the first riser pressure sensor 2 and the second riser pressure sensor 3 are connected with a riser pressure gauge 5, and the riser pressure gauge 5 is installed in the operation room. The sensor can be selected according to the size of the pressure, and different valve passages can be selected according to different conditions.
The vertical pipe pressure sensor 1 comprises a rubber cup type vertical pipe pressure sensor and a piston type pressure sensor;
wherein, the ratio of the rubber cup type vertical pipe pressure sensor to the piston type vertical pipe pressure sensor is 1:1. The rubber cup type vertical pipe pressure sensor is mainly applicable to various specifications under 60MPa, and the piston type vertical pipe pressure sensor is mainly applicable to various specifications above 60 MPa.
As shown in fig. 2, a rubber cup type riser pressure sensor: comprises a conical surface joint 2-1, a rectangular sealing ring 2-2, a wing nut 2-3, a gland 2-4, a cylinder body 2-5, a capsule 26, a joint 2-7, a protective sleeve 2-8, a quick joint 2-9, a gasket 2-10, a rubber tube assembly 2-11, an O-shaped sealing ring 2-12 and a quick joint 2-13. The lower end of the first cylinder body 2-5 is provided with a conical surface joint 2-1, a capsule 2-6 is arranged in the cylinder body 2-5, the capsule 2-6 is arranged through a rectangular sealing ring 2-2, a wing nut 2-3 and a gland 2-4, and the upper end of the cylinder body 2-5 is connected with a rubber tube assembly 2-11 and a quick connector 2-9. The slurry pressure in the vertical pipe acts on the hydraulic oil through a rubber cup in the sensor and is transmitted to a spring tube of the vertical pipe pressure indicator through a connecting pipeline, the free end of the spring tube generates displacement, and the gauge needle is driven to deflect through the amplifying mechanism, so that the vertical pipe pressure is indicated. The key of the sensor is to judge when the rubber cup is broken and how to change the rubber cup when the oil is not filled.
As shown in fig. 3, piston riser pressure sensing: the novel hydraulic cylinder comprises a second cylinder body 3-4, wherein the lower end of the second cylinder body 3-4 is connected with a joint 3-6, a connecting mechanism is installed on the second cylinder body 3-4, a piston 3-1 is installed in a cavity of the second cylinder body 3-4, and a transmission rubber cup 3-3 is installed at the lower end of the piston 3-1 through a locking nut 3-2. The piston 3-1 is provided with a sealing ring 3-5, so that slurry and hydraulic oil are effectively isolated, and the slurry pressure values in the sleeve and the vertical pipe are transmitted to a pressure gauge on the surface of the control box for display through the hydraulic oil as a transmission medium. And No. 45 hydraulic oil is arranged in the second cylinder body 3-4, and No. 20 hydraulic oil is arranged in the transfer rubber cup 3-3.
The main innovation point of the piston 1 is that the sealing mode of the piston is that the sealing rings 3-5 are composed of a T-shaped fluorine rubber sealing ring 4 and 2 polytetrafluoroethylene rectangular rings 5. Wherein the main seal is a T-shaped fluorine rubber seal ring, and the 2 polytetrafluoroethylene rectangular rings are used as auxiliary seals. Rectangular polytetrafluoroethylene has a higher hardness than T-seals. When the T-shaped seal is tightly attached to the inner wall, the polytetrafluoroethylene seal pushes the T-shaped seal to seal the T-shaped seal. The pressure resistance of the single fluorine rubber is generally about 120MPa, two polytetrafluoroethylene sealing rings with high hardness are selected for auxiliary sealing, and the purposes of the auxiliary sealing are as follows: 1. when the piston slides, a single sealing ring can be extruded from a gap between the cylinder body and the piston, so that the sealing ring is torn to lose sealing, and two polytetrafluoroethylene sealing rings with high hardness are added to mainly play a role of buffering; 2. 2 the single sealing ring forms a linear seal when in sealing, and the two polytetrafluoroethylene rings are added to push the main seal to change the linear seal into a surface seal when in sliding, so that the pressure can be increased to more than 200 MPa.
In the utility model, the first riser pressure sensor 2 and the second riser pressure sensor 3 are both arranged on a slurry riser pipeline, a round hole is formed in the slurry riser pipeline, a threaded nipple is fixedly arranged on the round hole, and the first riser pressure sensor 2 and the second riser pressure sensor 3 are arranged in the threaded nipple. And a thin film belt is arranged on the threaded nipple. The film strip is a polytetrafluoroethylene film strip. The method ensures safe, high-quality and high-efficiency implementation in the drilling operation process, is beneficial to protecting oil and gas resources, improves recovery ratio, prolongs the service life of an oil and gas well, and prevents blowout and out-of-control accidents.
The riser manometer 5 comprises a direct-connection manometer and a damping manometer. When the riser pressure gauge 5 is a damping pressure gauge, as shown in fig. 4, a damping valve 4 is further disposed between the riser pressure gauge 5 and the riser pressure sensor. Wherein the direct connection type connector is directly connected with the equipment end; the damping type is to add a damping valve at the upper end of the instrument, and connect with the equipment end through the damping valve and the high-pressure pipeline.
Use of products in the system
1. Use of riser pressure sensor
a) The riser pressure sensor 1 should be mounted on the drill floor at a height of about 2 meters for ease of installation and removal. When installed, the mud pump cannot be started.
b) A round hole is formed in the slurry vertical pipe, a short joint with 2' NPT male threads is welded on the slurry vertical pipe, and the welding seam is firmly sealed.
c) And winding a polytetrafluoroethylene film strip on the short section, and mounting the male union on the sensor on the short section.
d) And (3) injecting oil into the sensor through the self-sealing joint, and stopping injecting oil when the side walls of the rubber cup are just contacted with each other for the rubber cup type sensor. If the pectin cup is round, the oiling is insufficient, and the vent hole screw is screwed down after oiling. Care should be taken not to inject oil excessively so as not to damage the cup.
e) The male union screw button is coated with screw oil, the cylinder body and the female union are arranged on the male union, the female union is screwed down (a gate can be arranged between the vertical pipe and the sensor), and the direction of the vertical pipe pressure sensor is preferably vertical upwards.
f) For the piston type sensor, oil is injected into the sensor through the self-sealing joint, and the oil is injected into the piston to be completely jacked up, as shown in the figure. If oil seeping, the rubber ring on the piston is replaced in time.
2. Use of riser pressure gauge
a) A driller display stand with a riser pressure indicator is fixed in front of the driller, so that the driller can directly observe dial values.
b) The sensor is connected with a corresponding connector on the driller's display station by a connecting line.
c) And the pressure buffer valve of the vertical pipe is regulated, so that the gauge needle cannot vibrate too much.
3. Pipeline connection
a) One end of a 10-meter or 15-meter hydraulic pipeline marked with a vertical pipe pressure gauge is connected with a connector marked with the vertical pipe pressure gauge behind a driller display table, and the other end of the pipeline is connected with a sensor when leaving a factory, if the copper pad is detached and needs to be replaced again.
b) And (3) opening a bleed valve, filling oil from an oil filling port of the sensor, discharging gas of a copper pipeline and a corresponding hydraulic pipeline in the driller's floor (whether bubbles emerge or not can be observed), and closing the bleed valve.
c) And (3) repeatedly injecting a certain amount of hydraulic oil from the oil filling port of the sensor, so that the dial indicates about 5MPa, slowly opening the air release valve, exhausting gas in the hydraulic pipeline, and closing the air release valve. And then a certain amount of hydraulic oil is injected to enable the dial to indicate about 5MPa, the air release valve is slowly opened to enable the dial to indicate less than 0.5MPa, and the air release valve is closed, wherein the value is an initial value. If the sensor is not attached to the riser for filling the oil, the method of observing the cup is used, namely, when the side walls of the cup in the sensor are just contacted with each other, the oil filling is stopped (namely, the oil is filled), if the cup is round, the oil filling is insufficient, the cup must be refilled (the cup is not excessively filled so as not to damage the cup, and the cup is extremely easy to break when the oil is not filled, and then the sensor, a hydraulic pipeline, a driller copper pipeline and even a pressure transmitter of the pressure of the riser, a riser pressure meter are caused to entirely penetrate into the slurry, so that the consequences are serious).
d) When the rubber cup needs to be replaced, a gland of the sensor is detached by a special spanner with a randomly matched vertical pipe pressure, the worn rubber cup is replaced, and then the rubber cup is filled with oil according to the method.
4. Riser pressure measurement system tuning
The piston manometer is used for pressurizing the vertical pipe pressure hydraulic gauge by 0-40 MPa, the pressure step of 5MPa is used for gradually pressurizing, the indication of the hydraulic gauge is observed to be in the range of 0-40 MPa, the joints are ensured not to leak oil, and the pointer rotates flexibly. The return pressure was reduced and observed again.
The working process of the utility model is as follows:
as shown in fig. 5, in the direct-connected riser pressure measurement system, a pressure source firstly passes through a riser pressure sensor, and No. 45 aviation hydraulic oil in the riser pressure sensor enters a console where a riser pressure gauge is located; as shown in FIG. 6, the damping type riser pressure measurement system passes through a medium pressure source, firstly passes through a riser pressure sensor, and after 45 # aviation hydraulic oil in the riser pressure sensor enters a damping valve, enters a riser pressure gauge
Slurry pressure in the riser of the rubber cup type riser pressure sensor acts on hydraulic oil through a rubber cup in the sensor, and then is transmitted to a spring tube of a riser pressure indicator through a connecting pipeline, the free end of the spring tube generates displacement, and a gauge needle is driven to deflect through an amplifying mechanism, so that the riser pressure is indicated. The key of the sensor is to judge when the rubber cup is broken (when oil is not filled), and how to change the rubber cup, the piston type vertical pipe pressure sensor converts a high pressure value into a low pressure value through two pistons with different area sizes, and the slurry pressure values in the sleeve pipe and the vertical pipe are transmitted to a pressure gauge on the surface of a control box through hydraulic oil as a transmission medium to be displayed, so that the higher slurry pressure can be accurately converted into the low pressure value to be displayed, the safety, the high quality and the high efficiency of implementation are ensured in the drilling operation process, the oil and gas resource is protected, the recovery ratio is improved, the service life of an oil and gas well is prolonged, and the occurrence of blowout and well control out-of-control accidents is prevented.
It will be apparent to those skilled in the art that the foregoing is merely illustrative of the preferred embodiments of this utility model, and that certain modifications and variations may be made in part of this utility model by those skilled in the art, all of which are shown and described with the understanding that they are considered to be within the scope of this utility model.
Claims (10)
1. The riser pressure measurement system for the oilfield well control equipment is characterized by comprising a detection valve (1) arranged at an outlet of a slurry pump, wherein one outlet of the detection valve (1) is connected with a first riser pressure sensor (2) for detecting low pressure, and the other outlet of the detection valve is connected with a second riser pressure sensor (3) for detecting high pressure; the output ends of the first riser pressure sensor (2) and the second riser pressure sensor (3) are connected with a riser pressure gauge (5), and the riser pressure gauge (5) is installed in the operation chamber.
2. Riser pressure measurement system for oilfield well control equipment according to claim 1, wherein the first riser pressure sensor (2) is a rubber cup riser pressure sensor.
3. The riser pressure measurement system for an oilfield well control device of claim 2, wherein the rubber cup riser pressure sensor comprises: the novel medical device comprises a first cylinder body (2-5), wherein a conical surface joint (2-1) is arranged at the lower end of the first cylinder body (2-5), a capsule (1-6) is arranged in the cylinder body (2-5), the capsule (1-6) is arranged through a rectangular sealing ring (1-2), a wing nut (1-3) and a gland (1-4), and a rubber tube assembly (2-11) and a quick connector (1-9) are connected to the upper end of the cylinder body (2-5).
4. Riser pressure measurement system for oilfield well control equipment according to claim 1, wherein the second riser pressure sensor (3) is a piston riser pressure sensor.
5. The riser pressure measurement system for an oilfield well control device of claim 4, wherein the piston riser pressure sensor comprises: the novel hydraulic cylinder comprises a second cylinder body (3-4), wherein a joint (3-6) is arranged at the lower end of the second cylinder body (3-4), a connecting mechanism is arranged on the second cylinder body (3-4), a piston (3-1) is arranged in a cavity of the second cylinder body (3-4), and a transmission rubber cup (3-3) is arranged at the lower end of the piston (3-1) through a locking nut (3-2).
6. The vertical pipe pressure measurement system for oilfield well control equipment according to claim 5, wherein No. 45 hydraulic oil is arranged in the second cylinder body (3-4), and No. 20 hydraulic oil is arranged in the transfer rubber cup (3-3).
7. The riser pressure measurement system for oilfield well control equipment according to claim 1, wherein the first riser pressure sensor (2) and the second riser pressure sensor (3) are both installed on a slurry riser pipeline, a round hole is formed in the slurry riser pipeline, a threaded nipple is fixedly arranged on the round hole, and the first riser pressure sensor (2) and the second riser pressure sensor (3) are installed in the threaded nipple.
8. The riser pressure measurement system for oilfield well control equipment of claim 7, wherein the threaded nipple has a membrane strip mounted thereon.
9. The riser pressure measurement system for oilfield well control equipment of claim 8, wherein the membrane strip is a polytetrafluoroethylene membrane strip.
10. Riser pressure measurement system for oilfield well control equipment according to claim 1, characterized in that the riser pressure gauge (5) comprises a direct connection pressure gauge and a damping pressure gauge, when the damping pressure gauge is used, damping valves (4) are arranged between the riser pressure gauge (5) and the first riser pressure sensor (2) and the second riser pressure sensor (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120861904.9U CN219654658U (en) | 2021-04-25 | 2021-04-25 | Vertical pipe pressure measurement system for oilfield well control equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120861904.9U CN219654658U (en) | 2021-04-25 | 2021-04-25 | Vertical pipe pressure measurement system for oilfield well control equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219654658U true CN219654658U (en) | 2023-09-08 |
Family
ID=87861649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120861904.9U Active CN219654658U (en) | 2021-04-25 | 2021-04-25 | Vertical pipe pressure measurement system for oilfield well control equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219654658U (en) |
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2021
- 2021-04-25 CN CN202120861904.9U patent/CN219654658U/en active Active
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