CN201358778Y - Under-balanced drilling automatic pressure compensation system - Google Patents
Under-balanced drilling automatic pressure compensation system Download PDFInfo
- Publication number
- CN201358778Y CN201358778Y CNU2009200795200U CN200920079520U CN201358778Y CN 201358778 Y CN201358778 Y CN 201358778Y CN U2009200795200 U CNU2009200795200 U CN U2009200795200U CN 200920079520 U CN200920079520 U CN 200920079520U CN 201358778 Y CN201358778 Y CN 201358778Y
- Authority
- CN
- China
- Prior art keywords
- pressure
- mud
- pump
- monitoring
- unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses an under-balanced drilling automatic pressure compensation system. The system comprises a grouting unit, a monitoring unit and a control unit, wherein the grouting unit comprises a high-pressure mud pump, a mud storage tank and a three-way regulation valve; the high-pressure mud pump is used for supplying high-pressure mud required by the grouting unit; the mud storage tank is used for storing mud for cycle use of the mud in the grouting unit; the three-way regulation valve is used for regulating diversion mud; the monitoring unit comprises a flow meter, a liquid level meter, a pump stroke inductor and a pressure sensor; the flow meter is used for metering the mud volume grouted in the high-pressure mud pump; the liquid level meter is used for monitoring the liquid level of the mud in the mud storage tank; the pump stroke inductor is used for monitoring the working condition of the high-pressure mud pump; the pressure sensor is used for monitoring the wellhead pressure; and the control unit comprises a data acquisition controller and an industrial personal computer which is used for sending a control order to the data acquisition controller. Under the condition of keeping the set wellhead pressure, the system realizes the aims of automatic pressure-control grouting, metering and checking.
Description
Technical field
The utility model relates to the oil conventional drilling and under balance pressure drilling plays rig automatic control technology field, exactly relates to a kind of automatic pressure bucking-out system.
Background technology
In prior art, in oil conventional drilling and under balance pressure drilling make a trip process, along with drilling tool constantly trips out in the well, mud liquid level in the well constantly descends, at this moment must in well, replenish mud at any time, and keep well head pressure within the specific limits, thereby reach the purpose that safety pulls out of hole.The method that adopts in under-balance drilling operation at present mainly is: Yi Bian utilize fracturing unit truck frequently to pour into mud in well, manually control choke valve in addition on one side and come the control well mouth pressure, while arranges the special messenger to measure, write down again and checks the mud that pours into, thereby realizes the purpose that grouting, pressure control, safety pull out of hole.Use existing technology grouting pressure control, several of main problems below existing: 1. handle the people of fracturing unit truck, often control the bad amount that at every turn pours into, it is low or too high to cause well head pressure to cross, and causes excessive underbalance or positive differential pressure, is unfavorable for that safety pulls out of hole and reservoir protection; 2. may there be human error in the mud amount that needs human metering to pour in the whole trip-out process, is unfavorable in time finding the potential safety hazard in the trip-out process; 3. need at least two people to cooperate frequent controlled valve in the whole trip-out process, labour intensity is very big, very accurately controlled pressure.
Publication number is CN1339650, the Chinese patent literature that open day is on March 13rd, 2002 discloses a kind of Microcomputerized automatic control system for oil and gas well drilling throttling pressure, belong to the oil-gas mining automation field, comprise and utilize pressure sensor to measure standpipe and casing pressure, with the displacement sensor throttle valve opening that surges, pump dashes towards the sensor measurement pump, gas flowmeter is measured the gas flow after separating, the signal that described each road is gathered carry out that filtering is amplified and the A/D conversion after enter computer and carry out record, storage, calculate standpipe pressure, casing pressure, carrying out data shows, and press and the control of casing pressure requires to send action command to Hydrauservo System according to upright, surge throttle valve opening and responsiveness in the kill-job choke manifold are regulated control, native system has been realized the choke pressure microcomputer automatic control of under balance pressure drilling, and has reached the ability of accurate control.But its theory is to be based upon on the simple kill-job principle, thinks to keep and upright presses that constant just to equal bottom pressure constant, bottom pressure is not taken the variation of pumpage, property of drilling fluid etc. into account (and these can often change) in under-balance drilling operation.Though it has all improved than manual adjustments casing pressure precision and efficient, its core has just simply replaced computer manually, and the principle of institute's foundation and the parameter and the manual adjustments of reference and adjustment have no difference, and therefore has above-mentioned the problems of the prior art equally.
The utility model content
For solving the problems of the technologies described above, the utility model proposes a kind of be applicable to oil conventional drilling and under balance pressure drilling trip-out, keeping under the well head pressure situation of setting, realize the automatic pressure bucking-out system that automatic pressure-controlled grouting and metering are checked.
The utility model is achieved by the following technical solution:
A kind of under balance pressure drilling automatic pressure bucking-out system, comprise be in the milk unit, monitoring means and control module, it is characterized in that: described grouting unit comprises the high pressure slurry pump that the required high-pressure slurry in unit that is in the milk is provided, the three-way control valve of depositing mud and shunting mud for the possum belly and the adjusting of the mud circulation use of grouting unit; Described monitoring means comprises that pump that the described high pressure slurry pump of metering pours into the content gauge of the flow meter of mud amount, the described slurry tank mud level of monitoring, the described high-pressure slurry working conditions of pump of monitoring is towards inductor and be used for the pressure sensor of monitor well mouth pressure; Described control module comprises data acquisition controller and sends the on-the-spot Industrial Personal Computer (IPC) of control command to described data acquisition controller, the signal that described flow meter, content gauge, pump are gathered towards inductor and pressure sensor all is delivered to described data acquisition controller, and handles the back through data acquisition controller and send regulating command to described three-way control valve and make the mud from high pressure slurry pump branch to possum belly.
Described grouting also is provided with safety valve in the unit, and safety valve is located at pumping on the pipeline of high pressure slurry pump, and the mud that distributes through safety valve flows into described possum belly.
Described three-way control valve is a T type electric three-way control valve.
Advantage of the present utility model shows:
1, because the utility model adopts grouting unit, detecting unit and three ingredients of control module to constitute under balance pressure drilling automatic pressure bucking-out system, with publication number is that CN1339650 is that other prior aries of representative are compared, on the one hand, the utility model real-time tracking at work detects well head pressure from the drillng operation scene, and stablize the control well mouth pressure, thereby realized the purpose that automatic pressure-controlled grouting and metering are checked by T type three-way control valve; On the other hand, the utility model does not need the third party to operate, and can accurately control the amount that at every turn pours into, and the offsetting well mouth pressure has been avoided excessive underbalance or positive differential pressure automatically, has guaranteed safe trip-out and reservoir protection effectively; On the one hand, the mud amount that does not need human metering to pour in the whole trip-out process of the utility model has also just been avoided human error, is beneficial to the potential safety hazard in the timely discovery trip-out process again.
2, the utility model adopts " grouting also is provided with safety valve in the unit; safety valve is located at pumping on the pipeline of high pressure slurry pump; the mud that distributes through safety valve flows into described possum belly " such technical scheme, when pressure bursty state following time, can rise and rush down the pressure shunting action, guarantee the application life of whole system effectively.
Description of drawings
Below in conjunction with specification drawings and specific embodiments the utility model is made further supplementary notes, wherein:
Fig. 1 is the structural scheme of mechanism of native system
The specific embodiment
The utility model discloses a kind of under balance pressure drilling automatic pressure bucking-out system, comprise be in the milk unit, monitoring means and control module, described grouting unit comprises the high pressure slurry pump 1 that the required high-pressure slurry in unit that is in the milk is provided, the three-way control valve of depositing mud and shunting mud for the possum belly 2 and the adjusting of the mud circulation use of grouting unit; Described monitoring means comprises that pump that the described high pressure slurry pump 1 of metering pours into the content gauge 4 of the flow meter 3 of mud amount, the described slurry tank mud level of monitoring, described high pressure slurry pump 1 working condition of monitoring is towards inductor 5 and be used for the pressure sensor 6 of monitor well mouth pressure; Described control module comprises data acquisition controller 7 and sends the on-the-spot Industrial Personal Computer (IPC) 8 of control command to described data acquisition controller 7, the signal that described flow meter 3, content gauge 4, pump are gathered towards inductor 5 and pressure sensor 6 all is delivered to described data acquisition controller 7, and handles the back through data acquisition controller 7 and send regulating commands to described three-way control valves and make the mud from high pressure slurry pump 1 branch to possum belly 2.
With reference to Figure of description 1, preferred forms of the present utility model is: on the basis of embodiment 1, described grouting also is provided with safety valve 9 in the unit, and safety valve 9 is located at pumping on the pipeline of high pressure slurry pump 1, and the mud that distributes through safety valve 9 flows into described possum belly 2.Described three-way control valve is a T type electric three-way control valve 10.
Operating principle of the present utility model is as follows:
The gauge tap that grouting is provided with in the unit is divided into manually and automatically, and when gauge tap during in manual position, the grouting unit breaks away from auto state, and whole automatic pressure bucking-out system is only done monitoring and used and do not participate in control, and all are controlled, and full armrest is moving to be finished.When gauge tap during at automated location, the under balance pressure drilling engineer sets the order of grout wells mouth pressure value on the Industrial Personal Computer (IPC) 8 at the scene, native system can start high pressure slurry pump 1 automatically and is in the milk when native system detects on-the-spot well head pressure and is lower than underbalance job engineering teacher and sets well head pressure, data acquisition controller 7 will be monitored flow meter 3, content gauge 4, pump in real time and calculate towards the data that inductor 5, pressure sensor 6 transmit, and contrast (supposition: set well head pressure=A in real time with the well head pressure value of setting; Actual measurement well head pressure=B) is T type electric three-way control valve 10 open degree maximums when (A-B)/A*% 〉=10%, T type electric three-way control valve 10 changes in proportion continuously in maximum open degree and between cutting out when 0≤(A-B)/A*%＜10%, thereby the mud from high pressure slurry pump 1 is changed its course by T type electric three-way control valve 10, reasonable diffluence, thus make well head pressure automatic stabilisation in range of set value.System can monitor pump discharge pressure in real time when high pressure slurry pump 1 pours into mud in well, in case surpass safety value, then realizes pressure release by safety valve 9, guarantees security of system.
Claims (3)
1, a kind of under balance pressure drilling automatic pressure bucking-out system, comprise be in the milk unit, monitoring means and control module, it is characterized in that: described grouting unit comprises the high pressure slurry pump (1) that the required high-pressure slurry in unit that is in the milk is provided, the three-way control valve of depositing mud and shunting mud for the possum belly (2) and the adjusting of the mud circulation use of grouting unit; Described monitoring means comprises that the described high pressure slurry pump of metering (1) pours into the content gauge (4) of the flow meter (3) of mud amount, the described slurry tank mud level of monitoring, the pump of monitoring described high pressure slurry pump (1) working condition is towards inductor (5) and be used for the pressure sensor (6) of monitor well mouth pressure; Described control module comprises data acquisition controller (7) and sends the on-the-spot Industrial Personal Computer (IPC) (8) of control command to described data acquisition controller (7), the signal that described flow meter (3), content gauge (4), pump are gathered towards inductor (5) and pressure sensor (6) all is delivered to described data acquisition controller (7), and handles the back through data acquisition controller (7) and send regulating command to described three-way control valve and make the mud from high pressure slurry pump (1) branch to possum belly (2).
2, under balance pressure drilling automatic pressure bucking-out system according to claim 1, it is characterized in that: also be provided with safety valve (9) in the described grouting unit, safety valve (9) is located at pumping on the pipeline of high pressure slurry pump (1), and the mud that distributes through safety valve (9) flows into described possum belly (2).
3, under balance pressure drilling automatic pressure bucking-out system according to claim 1 and 2 is characterized in that: described three-way control valve is a T type electric three-way control valve (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200795200U CN201358778Y (en) | 2009-03-12 | 2009-03-12 | Under-balanced drilling automatic pressure compensation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200795200U CN201358778Y (en) | 2009-03-12 | 2009-03-12 | Under-balanced drilling automatic pressure compensation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201358778Y true CN201358778Y (en) | 2009-12-09 |
Family
ID=41424541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200795200U Expired - Fee Related CN201358778Y (en) | 2009-03-12 | 2009-03-12 | Under-balanced drilling automatic pressure compensation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201358778Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606098A (en) * | 2012-04-01 | 2012-07-25 | 中国石油集团西部钻探工程有限公司 | Drilling pressure-control device and usage thereof |
| CN102803645A (en) * | 2010-02-24 | 2012-11-28 | 控制压力营运私人有限公司 | Drilling system and method of operating a drilling system |
| CN102979468A (en) * | 2012-12-28 | 2013-03-20 | 中国石油化工股份有限公司 | Grouting system with metering device |
| CN104632186A (en) * | 2013-11-08 | 2015-05-20 | 中国石油天然气集团公司 | Method and device for detecting and processing secondary well controlling parameters after primary well controlling failure |
| CN105041242A (en) * | 2015-07-03 | 2015-11-11 | 中国石油集团渤海石油装备制造有限公司 | Drilling fluid circulating manifold |
| US9500053B2 (en) | 2013-12-17 | 2016-11-22 | Managed Pressure Operations Pte. Ltd. | Drilling system and method of operating a drilling system |
| US10435966B2 (en) | 2013-12-17 | 2019-10-08 | Managed Pressure Operations Pte Ltd | Apparatus and method for degassing drilling fluids |
| CN110886693A (en) * | 2018-09-10 | 2020-03-17 | 濮阳市百福瑞德石油科技有限公司 | Method for preventing error operation of drilling pump in petroleum drilling engineering and pumping pressure protection system thereof |
| CN111456654A (en) * | 2020-04-30 | 2020-07-28 | 中国石油天然气集团有限公司 | Continuous grouting device and method for tripping |
-
2009
- 2009-03-12 CN CNU2009200795200U patent/CN201358778Y/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102803645A (en) * | 2010-02-24 | 2012-11-28 | 控制压力营运私人有限公司 | Drilling system and method of operating a drilling system |
| CN102803645B (en) * | 2010-02-24 | 2015-04-22 | 控制压力营运私人有限公司 | Drilling system and method of operating a drilling system |
| CN102606098A (en) * | 2012-04-01 | 2012-07-25 | 中国石油集团西部钻探工程有限公司 | Drilling pressure-control device and usage thereof |
| CN102979468A (en) * | 2012-12-28 | 2013-03-20 | 中国石油化工股份有限公司 | Grouting system with metering device |
| CN104632186A (en) * | 2013-11-08 | 2015-05-20 | 中国石油天然气集团公司 | Method and device for detecting and processing secondary well controlling parameters after primary well controlling failure |
| CN104632186B (en) * | 2013-11-08 | 2017-10-17 | 中国石油天然气集团公司 | Secondary kill-job parameter detecting processing method and processing device after kill-job failure |
| US9500053B2 (en) | 2013-12-17 | 2016-11-22 | Managed Pressure Operations Pte. Ltd. | Drilling system and method of operating a drilling system |
| US9845649B2 (en) | 2013-12-17 | 2017-12-19 | Managed Pressure Operations Pte. Ltd. | Drilling system and method of operating a drilling system |
| US10435966B2 (en) | 2013-12-17 | 2019-10-08 | Managed Pressure Operations Pte Ltd | Apparatus and method for degassing drilling fluids |
| CN105041242B (en) * | 2015-07-03 | 2017-05-31 | 中国石油集团渤海石油装备制造有限公司 | A kind of circulation of drilling fluid manifold |
| CN105041242A (en) * | 2015-07-03 | 2015-11-11 | 中国石油集团渤海石油装备制造有限公司 | Drilling fluid circulating manifold |
| CN110886693A (en) * | 2018-09-10 | 2020-03-17 | 濮阳市百福瑞德石油科技有限公司 | Method for preventing error operation of drilling pump in petroleum drilling engineering and pumping pressure protection system thereof |
| CN110886693B (en) * | 2018-09-10 | 2021-02-19 | 濮阳市百福瑞德石油科技有限公司 | Method for preventing error operation of drilling pump in petroleum drilling engineering and pumping pressure protection system thereof |
| CN111456654A (en) * | 2020-04-30 | 2020-07-28 | 中国石油天然气集团有限公司 | Continuous grouting device and method for tripping |
| CN111456654B (en) * | 2020-04-30 | 2023-01-31 | 中国石油天然气集团有限公司 | Continuous drilling grouting device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201358778Y (en) | Under-balanced drilling automatic pressure compensation system | |
| CN102359353B (en) | Closed-loop controlled-pressure well drilling system | |
| CN202850970U (en) | Automatic control system of downhole annular pressure for deepwater surface layer well drilling | |
| CN202755927U (en) | Well drilling device using flow monitoring to control bottom hole pressure | |
| CN103510893B (en) | A kind of drilling equipment utilizing traffic monitoring to realize bottom pressure control and method | |
| CN202250027U (en) | Closed-loop managed pressure drilling system | |
| CN104100219A (en) | Single-throttling-channel pressure control drilling method and device suitable for high-flow change | |
| CN203285370U (en) | Single-section throttling channel pressure control drilling device adapted to large flow variation | |
| CN102797451B (en) | Automatic control system and method for underground annulus pressure of deep water surface layer drilling | |
| CN202531136U (en) | Automatic measuring-adjusting and monitoring separate injection system for water injection well | |
| CN110118069A (en) | A kind of ultra-deep well drilling pressure control equipment and operating method | |
| CN105507886A (en) | Overflow and well leakage monitoring system and monitoring method thereof | |
| CN105089572A (en) | Intelligent production adjusting method and device for gas wells | |
| CN109577932A (en) | A kind of water injection well remotely monitors and automatic control system and method | |
| CN102561996A (en) | Intelligent well killing system | |
| CN105715220B (en) | A kind of drilling well control pressure system | |
| CN204782866U (en) | Well drilling choke manifold device is pressed in accuse | |
| CN202510089U (en) | Intelligent well control system | |
| CN103225499A (en) | System and method for analyzing working condition of water injection well in oil field | |
| CN203702123U (en) | Drilling system capable of controlling micro flow and pressure | |
| CN108825186A (en) | A kind of water injection rate automatic control device and method | |
| CN205918670U (en) | Beat sign indicating number hydraulic press hydraulic control system | |
| CN209761388U (en) | Intelligent grouting early warning system for drilling operation | |
| CN109339768B (en) | Drilling micro-overflow while-drilling monitoring method | |
| CN105221278A (en) | Based on the rotary drilling rig control system of global power coupling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091209 Termination date: 20170312 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |