CN202228023U - Back pressure compensating device - Google Patents
Back pressure compensating device Download PDFInfo
- Publication number
- CN202228023U CN202228023U CN 201120357725 CN201120357725U CN202228023U CN 202228023 U CN202228023 U CN 202228023U CN 201120357725 CN201120357725 CN 201120357725 CN 201120357725 U CN201120357725 U CN 201120357725U CN 202228023 U CN202228023 U CN 202228023U
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- Prior art keywords
- pump
- liquid level
- fluid reservoir
- sensor
- data acquisition
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- 239000007788 liquid Substances 0.000 claims abstract description 35
- 239000004576 sand Substances 0.000 claims abstract description 20
- 238000012544 monitoring process Methods 0.000 claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 239000012530 fluid Substances 0.000 claims description 50
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000002002 slurry Substances 0.000 abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 238000005553 drilling Methods 0.000 description 37
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 238000010276 construction Methods 0.000 description 5
- 239000008267 milk Substances 0.000 description 4
- 210000004080 milk Anatomy 0.000 description 4
- 235000013336 milk Nutrition 0.000 description 4
- 230000008901 benefit Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model discloses a back pressure compensation device, which comprises a grouting system, a water feeding system, a liquid level monitoring system and an operation control mechanism; the grouting system comprises a slurry pump, a flowmeter, a pump stroke sensor and a pressure sensor, wherein the slurry pump is respectively connected with the flowmeter and the pump stroke sensor, and the pressure sensor is connected with the flowmeter; the water feeding system comprises a liquid storage tank and a sand pump, the sand pump is connected with the liquid storage tank, and the liquid storage tank is connected with the slurry pump; the liquid level monitoring system comprises a liquid level sensor, and the liquid level sensor is arranged in the liquid storage tank and is connected with the data acquisition controller; the operation control mechanism comprises an industrial personal computer and a data acquisition controller, the industrial personal computer is connected with the data acquisition controller, and the data acquisition controller is respectively connected with a pressure sensor, a flowmeter, a pump stroke sensor, a liquid level sensor, a slurry pump and a sand pump. The utility model discloses can improve the return-pressure pump efficiency of watering to for the rear base provides the real-time supervision parameter, make the site operation safer, satisfy the site operation requirement more.
Description
Technical field
The utility model relates to a kind of back pressure compensation arrangement; Be applicable to that under balance pressure drilling and controlled pressure drilling make up a joint, make a trip in the process; Keep and set under the wellhead back pressure situation; Realize automatic pressure-controlled perfusion, replace existingly, belong to automatic grouting control pressure system scrap build technical field by third party's pressure control mode of being in the milk.
Background technology
In the prior art; In under balance pressure drilling, controlled pressure drilling make a trip process; Adopted the local grouting system (back pressure bucking-out system) continuously of home or overseas company development to be in the milk continuously, and carried out pressure control, be controlled in the scope of design to keep surface casing pressure.The field shows; Stopping under the borehole pump running status, this equipment has been realized the control of drilling fluid local circulation and surface casing pressure, has also found simultaneously the deficiency that exists: when 1, using the back pressure bucking-out system of domestic existing or offshore company (like the Halliburton); Need to use an interim water-line; The one of which head is connected with the back pressure bucking-out system, and the other end is connected with the drilling team circulating tank, and the filling pipe end that the circulating tank of present domestic drilling team is not consistent; Therefore need transform at the scene, bring inconvenience for the site operation operation; 2, owing to the construction plant spatial constraints, the distance between back pressure bucking-out system and the drilling team's circulating tank is longer, general 20 ~ 25m; Therefore can influence water efficient on the drilling fluid, The field shows that it is unstable all to have occurred discharge capacity in the back pressure use; Bigger situation fluctuates; Cause that well head pressure control fluctuation is big, precision is low, through analyze all be since on the drilling fluid oversize the last water efficient that causes of water distance low, at present external Halliburton Company is through sand pump of increase between back pressure bucking-out system and drilling team's circulating tank; Go up water efficient to improve, avoid because the big problem of well head pressure control fluctuation that flow oscillation causes more greatly in the local circulation process.3, the back pressure bucking-out system of using at present only can be carried out data acquisition, exchange and control at the construction field (site); Do not reach the ability of rear base network system control, therefore, the scene needs to be equipped with more technician; Keep in repair when the system of being convenient to makes mistakes, improved cost.
Summary of the invention
The purpose of the utility model is to overcome the problems referred to above that under balance pressure drilling, controlled pressure drilling make a trip process, exist; A kind of back pressure compensation arrangement is provided, and the utility model is applicable under balance pressure drilling, the controlled pressure drilling process that makes up a joint, makes a trip, and keeps and sets under the well head pressure situation; Realize automatic pressure-controlled grouting; Can simplify on-the-spot erection procedure, improve water efficient on the backpressure pump, and real-time monitoring parameter is provided for rear base; Make field operation safer, satisfy the site operation job requirements more.
For realizing above-mentioned purpose, the technical scheme that the utility model adopts is following:
A kind of back pressure compensation arrangement is characterized in that: comprise grouting system, water-feeding system, liquid level monitoring system and control mechanism; Said grouting system comprises slush pump, flow meter, pump towards inductor and pressure sensor, and slush pump is connected towards inductor with pump with flow meter respectively, and slush pump also is connected with the motor power unit, and pressure sensor is connected with flow meter; Said water-feeding system comprises fluid reservoir and sand pump, and sand pump is connected with fluid reservoir, and fluid reservoir is connected with slush pump; Said liquid level monitoring system comprises liquid level sensor, and liquid level sensor is arranged in the fluid reservoir and with data acquisition controller and is connected; Saidly control mechanism and comprise Industrial Personal Computer (IPC) and data acquisition controller, Industrial Personal Computer (IPC) is connected with data acquisition controller, and data acquisition controller is connected towards sensor, liquid level sensor, slush pump and sand pump with pressure sensor, flow meter, pump respectively.
Said slush pump one end is connected with the fluid reservoir port of export, and the other end is connected with the flow meter arrival end.
Said pressure sensor is connected with the flow meter port of export.
Said fluid reservoir set inside has blowoff valve, outlet valve, connection tube coupling and cleaning valve.
Said fluid reservoir one end is connected with the sand pump port of export, and the other end is connected with the slush pump arrival end.
Adopt the advantage of the utility model to be:
One, behind employing the utility model; In back pressure compensation operation process; Adopt high pressure slurry pump that drilling fluid is poured into pit shaft from fluid reservoir; Solved because the last water inefficient difficult problem that the pipeline distance causes makes back pressure compensation operation safer, reliable, replaced original by third party's pressure control mode of being in the milk.
Two, in the utility model; Comprised fluid reservoir in the back pressure compensation arrangement; Adopt general soft pipeline just can drilling fluid be injected fluid reservoir through high-power sand pump; With high pressure slurry pump the drilling fluid in the fluid reservoir is poured in the pit shaft again, avoided adopting at the scene the connection of hard tube line and circulating tank is carried out modification operation, practiced thrift cost and labour.
Three, the utility model can be realized the monitoring of equipment state and population parameter, combines other parameter decision risks and early warning to provide support for producing.
Four, the utility model adopts " along the prosecutor formula " operation of being in the milk, and when carrying out automatic grouting back pressure compensation operation, effectively controls drilling well liquid measure in the fluid reservoir, and avoiding in the fluid reservoir drilling fluid too much to overflow tank body or very few influences back pressure compensation operation; And guaranteed that the flow drilling fluid steady, that realize continous-stable that slush pump exports divides local the circulation in well head part, guarantees that back pressure compensates construction operation safety, reliable.
Description of drawings
Fig. 1 is the utility model structural representation
Be labeled as among the figure: 1, sand pump, 2, slush pump, 3, fluid reservoir, 4, pump is towards inductor, 5, liquid level sensor, 6, flow meter, 7, pressure sensor, 8, data acquisition controller, 9, Industrial Personal Computer (IPC), 10, drilling team's circulating tank, 11, the motor power unit.
The specific embodiment
A kind of back pressure compensation arrangement mainly comprises grouting system, water-feeding system, liquid level monitoring system and controls mechanism, below the utility model is specified:
Grouting system comprises a special-purpose drilling well high pressure slurry pump 2, provides grouting system required drilling fluid, and slush pump is connected with motor power unit 11, and the rotating speed of power and coupling is provided for slush pump 2; Flow meter 6 is used for metering and pours into the drilling well liquid measure; Pump is used to monitor the high-pressure slurry working conditions of pump towards inductor 4; Pressure sensor 7 is used for the monitor well mouth pressure.High pressure slurry pump 2 is positioned at fluid reservoir 3 ports of export, is positioned at flow meter 6 arrival ends; Pump is connected on the high pressure slurry pump 2 towards sensor 4; Pressure sensor 7 is positioned at flow meter (6) port of export.Grouting system is connected with water-feeding system, is connected with data acquisition controller 8 through data wire simultaneously.
Water-feeding system comprises a fluid reservoir 3, and its set inside blowoff valve, outlet valve, connection tube coupling, cleaning valve are installed on the skid base, are used to deposit drilling fluid, supplies system's circulation of drilling fluid to use; High-power sand pump 1 injects the drilling fluid in drilling team's circulating tank in the fluid reservoir.Fluid reservoir 3 is positioned at high-power sand pump 1 port of export, is positioned at high pressure slurry pump 2 arrival ends.Water-feeding system is connected with grouting system, is connected with data acquisition controller 8 through data wire simultaneously.
The liquid level monitoring system comprises liquid level sensor 5, is used for monitoring fluid reservoir drilling fluid liquid level.Liquid level sensor 5 is installed in the fluid reservoir 3, is connected with data acquisition controller 8 through data wire simultaneously.
Controling mechanism and comprise on-the-spot Industrial Personal Computer (IPC) 9, is collection in worksite control maincenter; Data acquisition controller 8 comprises various data connecting interfaces and network interface, is responsible for on-the-spot all signals collecting, processing, execution control command, driving execution mechanism.On-the-spot Industrial Personal Computer (IPC) 9 is installed on the skid base; Be connected with data acquisition controller 8 through data wire, data acquisition controller 8 is installed on the skid base and is connected towards sensor 4, liquid level sensor 5, high pressure slurry pump 2 and high-power sand pump 1 with on-the-spot Industrial Personal Computer (IPC) 9, pressure sensor 7, flow meter 6, pump through data wire.
After adopting the utility model, before the enforcement back pressure compensation operation, earlier fluid reservoir is filled, and started/stop high-power sand pump and high pressure slurry pump through drilling well liquid level in the controlling organization setting fluid reservoir.During back pressure compensation operation; Through high pressure slurry pump drilling fluid in the fluid reservoir is injected pit shaft; Monitor drilling well liquid level in the fluid reservoir in real time through the liquid level monitoring system simultaneously, control mechanism when system is provided with low spot and start high-power sand pump, the drilling fluid in drilling team's circulating tank is added in the back pressure bucking-out system fluid reservoir when liquid level is lower than; When being higher than to set, drilling well liquid level in the fluid reservoir stops high-power sand pump when height is put, to guarantee that drilling fluid is sufficient in the fluid reservoir.Simultaneously, also set the liquid level minimum point, when liquid level drops to minimum point, controled mechanism and can give the alarm and stop high pressure slurry pump, prevented to find time to protect the purpose of high pressure slurry pump with arrival.
In back pressure compensation operation implementation process; Through the system remote control interface with various real time transmitting parameter to rear base; Rear base changes equipment operation state and the site operation situation grasped according to parameter; Can send various construction operation instructions to field condition, and can carry out real-time servicing, improve the safety of whole construction operation and the reliability of systems soft ware system.
Claims (5)
1. a back pressure compensation arrangement is characterized in that: comprise grouting system, water-feeding system, liquid level monitoring system and control mechanism; Said grouting system comprises slush pump, flow meter, pump towards inductor and pressure sensor, and slush pump is connected towards inductor with pump with flow meter respectively, and slush pump also is connected with the motor power unit, and pressure sensor is connected with flow meter; Said water-feeding system comprises fluid reservoir and sand pump, and sand pump is connected with fluid reservoir, and fluid reservoir is connected with slush pump; Said liquid level monitoring system comprises liquid level sensor, and liquid level sensor is arranged in the fluid reservoir and with data acquisition controller and is connected; Saidly control mechanism and comprise Industrial Personal Computer (IPC) and data acquisition controller, Industrial Personal Computer (IPC) is connected with data acquisition controller, and data acquisition controller is connected towards sensor, liquid level sensor, slush pump and sand pump with pressure sensor, flow meter, pump respectively.
2. back pressure compensation arrangement according to claim 1 is characterized in that: said slush pump one end is connected with the fluid reservoir port of export, and the other end is connected with the flow meter arrival end.
3. back pressure compensation arrangement according to claim 1 and 2 is characterized in that: said pressure sensor is connected with the flow meter port of export.
4. back pressure compensation arrangement according to claim 3 is characterized in that: said fluid reservoir set inside has blowoff valve, outlet valve, connection tube coupling and cleaning valve.
5. according to claim 1,2 or 4 described back pressure compensation arrangements, it is characterized in that: said fluid reservoir one end is connected with the sand pump port of export, and the other end is connected with the slush pump arrival end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120357725 CN202228023U (en) | 2011-09-22 | 2011-09-22 | Back pressure compensating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120357725 CN202228023U (en) | 2011-09-22 | 2011-09-22 | Back pressure compensating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202228023U true CN202228023U (en) | 2012-05-23 |
Family
ID=46078611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120357725 Expired - Lifetime CN202228023U (en) | 2011-09-22 | 2011-09-22 | Back pressure compensating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202228023U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104120725A (en) * | 2014-06-17 | 2014-10-29 | 杭州华能大坝安全工程技术有限公司 | Automatic mortar conveying system applied to large hydropower station and construction method thereof |
| CN109209269A (en) * | 2018-10-10 | 2019-01-15 | 王向群 | A kind of well pressure control system and method for the well cementation of wellbore pressure balance |
-
2011
- 2011-09-22 CN CN 201120357725 patent/CN202228023U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104120725A (en) * | 2014-06-17 | 2014-10-29 | 杭州华能大坝安全工程技术有限公司 | Automatic mortar conveying system applied to large hydropower station and construction method thereof |
| CN104120725B (en) * | 2014-06-17 | 2016-06-08 | 杭州华能大坝安全工程技术有限公司 | It is applied to automatic slurry transporting system and the constructional method thereof of large sized hydropower station |
| CN109209269A (en) * | 2018-10-10 | 2019-01-15 | 王向群 | A kind of well pressure control system and method for the well cementation of wellbore pressure balance |
| CN109209269B (en) * | 2018-10-10 | 2021-08-06 | 王向群 | Wellhead pressure control system and method for well shaft pressure balance well cementation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120523 |
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| CX01 | Expiry of patent term |