CN201546648U - Novel throttle manifold for managed pressure drilling - Google Patents
Novel throttle manifold for managed pressure drilling Download PDFInfo
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- CN201546648U CN201546648U CN2009202468468U CN200920246846U CN201546648U CN 201546648 U CN201546648 U CN 201546648U CN 2009202468468 U CN2009202468468 U CN 2009202468468U CN 200920246846 U CN200920246846 U CN 200920246846U CN 201546648 U CN201546648 U CN 201546648U
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Abstract
A novel throttle manifold for managed pressure drilling is used for the managed pressure drilling process of oil and gas fields. Three pipelines are connected into three routes by crosses. The first route pipeline is connected with the outlet end of the rotating control head of a managed pressure drilling system. The second route pipeline is connected with a meter pup joint and connected with the six-way joint of a main throttle manifold by the meter pup joint. The third route pipeline is orderly connected with a pneumatic plate valve, a cross, a throttle valve, a filter cross, a manual plate valve, a cross and a check valve. A pipeline connected to the cross arranged between the pneumatic plate valve and the throttle valve of the third route pipeline is connected with the drain end of a pressure return pump. The throttle manifold is provided with four main channels, namely a straight channel, a main throttle channel, a standby throttle channel and an auxiliary throttle channel. The utility model has the benefits that well head pressure is controlled by adjustable throttle pressure produced by manual or automatic throttle control, and relatively stable well bottom pressure is kept in drilling processes under static and dynamic conditions.
Description
Technical field
The utility model relates to the oilfield drilling field of engineering technology, is a kind of novel throttling manifold that is used for controlled pressure drilling, is mainly used in the drilling process the accurate control to oil gas well well head pressure.
Background technology
Along with increasing to exploration and development activity darker, more bad ground of the continuous expansion of seafari exploitation scale and land, adopting the conventional drilling apparatus and method to explore is uneconomic sometimes.Especially under the bad ground situation; because the window between pore pressure and the fracture pressure is smaller usually; regular meeting's down hole problem such as run into spray, leak, block and collapse not only can prolong drilling period, but also can bring the problem of HSE (health, safety, environment) aspect.In order to address the above problem, the controlled pressure drilling technology that proposes be carry out in the drilling process pressure controlled one than new method, use this technology and can carry out balance or near-balance drilling, can control formation fluid effectively and invade pit shaft, reduce multiple drilling complexity situations such as well kick, leakage, bit freezing, very suitable pore pressure and the narrower stratum operation of fracture pressure window.
Choke manifold is the key components that realize in the controlled pressure drilling process borehole pressure control, and it can control wellhead back pressure by producing adjustable throttling, thereby is implemented in static and dynamic condition bottom pressure relatively stable in the maintenance drilling process down.The control of back pressure mainly is the scientific design and accurately observing and controlling of choke valve.Choke valve is an artificial flow obstacle that is provided with, and produces a suitable flow resistance when making fluid flow through choke valve, comes limited flow, thereby makes the fluid before the choke valve produce back pressure, the hydrostatic pressure behind the choke valve is reduced greatly, to satisfy construction requirement.The pressure drop of general requirements choke valve should not surpass 20MPa.Choke valve will reach so high flow resistance and don't the runner obstruction takes place is very difficult.Simultaneously, high pressure drop makes manual adjustments very difficult.Therefore, on the peripheral passage, except that an adjustable choke valve is set, add one or more fixation type throttle valves again, the pressure of sharing on the peripheral passage falls, and realizes step-down step by step, finally is reached for the effect that the well control system provides reasonable back pressure.
At present, external relevant oil company has formed comparatively ripe controlled pressure drilling method and supporting choke manifold system thereof, but because China's controlled pressure drilling technology starts late, nearly technical research of just being correlated with in 2 years still is not used in the choke manifold of controlled pressure drilling.Adopt conventional choke manifold, its control thinking, equipment and control accuracy and effect all can't reach the requirement of controlled pressure drilling operation technique, especially whole equipment all can't satisfy the high-pressure well mouth demand of continuous work of auto from structure, material and performance, the operating condition of inapplicable controlled pressure drilling is difficult to satisfy the controlled pressure requirement of controlled pressure drilling.
The utility model content
The purpose of this utility model is: a kind of novel throttling manifold that is used for controlled pressure drilling is provided, is applicable to the oil drilling pressure control, and have safe and reliable, functional, pressure control precision height, characteristics that expense is cheap.
The technical solution adopted in the utility model is: the novel throttling manifold that is used for controlled pressure drilling, mainly by four-way, instrument pipe nipple, six logical, pneuamtic plate valve, choke valve, filtration four-way, manually flap type, microscler eight logical, ball valve, mass flowmenter and ball-and-seat are formed, the inlet connecting line of four-way, it is characterized in that: four-way connects three pipelines and is divided into three the tunnel, and first via pipeline is connected with the swivel control head port of export of controlled pressure drilling system; The second road pipeline is connected with the instrument pipe nipple and leads to by six of instrument pipe nipple and main choke manifold and connects; The Third Road pipeline is connected with pneuamtic plate valve, four-way, choke valve, filtration four-way, manual flap type, four-way and ball-and-seat in turn.On the four-way between Third Road pipeline pneuamtic plate valve and the choke valve, there is pipeline to link to each other with the drain side of backpressure pump.Be connected with three pipelines at microscler eight of main choke manifold on logical, article one pipeline is connected with the ball-and-seat of Third Road pipeline; The second pipeline is connected with ball valve; Article three, pipeline is connected with ball valve, mass flowmenter and ball valve in turn; The other end of second pipeline upper ball valve is connected with pipeline, and the pipeline that connects of the ball valve other end that is connected with mass flowmenter is connected on second pipeline and the pipeline that the ball valve other end is connected.
That described main choke manifold comprises is six logical, pneuamtic plate valve, choke valve, filtration four-way, manual flap type and microscler eight logical.Logical be connected with manual flap type by pipeline between leading to microscler eight six; Six logical with microscler eight logical between also symmetry be connected with pneuamtic plate valve, choke valve, filtration four-way and manual flap type in turn.
The described novel throttling manifold that is used for controlled pressure drilling is fixed on sledge dress base.
It is to adopt the direct or flange spool connection of pipeline that described pipeline connects.
Pressure sensor all is installed on instrument pipe nipple, choke valve, can carries out the remote-reading system force value.
The novel throttling manifold that is used for controlled pressure drilling has four central core of circulation.Consult Fig. 1.Article one, the four-way 1 that connects through controlled pressure drilling choke manifold arrival end of passage, instrument pipe nipple 2, six are logical 3, manually flap type 7 and microscler eight logical 8 forms a direct current channel; At the direct current channel middle part, tell second and the 3rd passage again by six logical 3, wherein the second passage by six logical 3 with pneuamtic plate valve 4, hydraulic control choke valve 5, filter four-way 6, after manually flap type 7 is connected successively, leads to 8 with microscler eight of direct current channel and be communicated with, form main throttling passage; Article three, passage by six logical 3 with pneuamtic plate valve 4, choke valve 5, filter four-way 6, after manually flap type 7 is connected successively, leads to 8 with microscler eight of direct current channel and be communicated with, form standby throttling passage; Article four, passage is connected with microscler eight logical 8 through the four-way on the direct current channel 1, pneuamtic plate valve 4, four-way 1, choke valve 5, filtration four-way 6, manual flap type 7, four-way 1 with after ball-and-seat 11 is connected successively, forms auxiliary throttling passage.
The novel throttling manifold that is used for controlled pressure drilling has a main throttling passage, a standby throttling passage, an auxiliary throttling passage and a direct current channel.Each bar passage all can work independently, and can switch at each throttling passage of different drilling conditions.
The beneficial effects of the utility model: the utility model is used for the novel throttling manifold of controlled pressure drilling, and the repair and replacement spare and accessory parts are convenient, does not need whole flow process is dismantled and moved; Possess tele-control system, the automaticity height has improved operational security and reliability; The control accuracy height.
The utlity model has following characteristics:
1, design has three independent throttling passages and a direct current channel, easy switching between each throttling passage, the conversion when being suitable for different drilling condition;
2, possess the tele-control system of forming by by fieldbus FF, human-computer interaction interface HMI, waterpower computing module, the automaticity height has improved job safety coefficient and control accuracy;
3, the exit of choke manifold system design has flow meter, can accurate measurement drilling well rate of discharge, measure flow with well logging and the backpressure pump inlet flow rate is compared, and can measure displacement variation easily, judge whether the down-hole exists micro-overflow and leakage;
4, all valve members and connecting line all have the superperformance of anti-high speed solid phase particles fluid erosion;
5, equipment adopts whole three-dimensional skid structure, compact conformation, and institute takes up space little, can adapt to land and marine operating environment.
Description of drawings
Fig. 1 is the novel throttling manifold overall structure schematic diagram that the utility model is used for controlled pressure drilling.
Among the figure, 1. four-way, 2. instrument pipe nipple, 3. six is logical, 4. pneuamtic plate valve, 5. the hydraulic control choke valve 6. filters four-way, 7. manual flap type, 8. microscler eight is logical, 9. ball valve, 10. mass flowmenter, 11. ball-and-seats.
The specific embodiment
Embodiment 1: with a novel throttling manifold that is used for controlled pressure drilling is example, and the utility model is described in further detail.
Consult Fig. 1.The novel throttling manifold that the utility model is used for controlled pressure drilling is fixed on a sledge dress base.The novel throttling manifold that is used for controlled pressure drilling by three four-ways 1, instrument pipe nipple 2, one six logical 3, three pneuamtic plate valve 4, three choke valves 5, three filter logical 8, three ball valves of the manual flap type of four-way 6, three 7, microscler eight 9, a mass flowmenter 10 and a ball-and-seat 11 and form.Each parts all belongs to existing products in markets.
The inlet connecting line of four-way 1, four-way 1 connects three pipelines and is divided into three the tunnel, and first via pipeline is connected with the swivel control head port of export of controlled pressure drilling system; The second road pipeline is connected with instrument pipe nipple 2 and is connected with six logical 3 of main choke manifold by instrument pipe nipple 2; The Third Road pipeline is connected with pneuamtic plate valve 4, four-way 1, choke valve 5, filtration four-way 6, manual flap type 7, four-way 1 and ball-and-seat 11 in turn.On the four-way 1 between Third Road pipeline pneuamtic plate valve 4 and the choke valve 5, there is pipeline to link to each other with the drain side of backpressure pump.Be fixed with pressure sensor on instrument pipe nipple 2, the choke valve 5.Choke valve 5 adopts the hydraulic control choke valve.
Main choke manifold microscler eight logical 8 on be connected with three pipelines, article one pipeline is connected with the ball-and-seat 11 of Third Road pipeline; The second pipeline is connected with ball valve 9; Article three, pipeline is connected with ball valve 9, mass flowmenter 10 and ball valve 9 in turn; The other end of the ball valve 9 of second pipeline is connected with pipeline, and the pipeline that connects of ball valve 9 other ends that are connected with mass flowmenter 10, is connected on the pipeline that the other end that the second pipeline connects ball valve 9 connects.
That main choke manifold comprises is six logical 3, pneuamtic plate valve 4, choke valve 5, filter four-way 6, manual flap type 7 and microscler eight logical 8.Between six logical 3 and microscler eight logical 8, be connected with manual flap type 7 by pipeline; Also symmetry is connected with pneuamtic plate valve 4, choke valve 5 in turn, filters four-way 6 and manual flap type 7 between six logical 3 and microscler eight logical 8.Choke valve 5 adopts the hydraulic control choke valve, and pressure sensor all is installed on the choke valve 5.
It is to adopt pipeline direct that pipeline connects, and when the parts of pipeline connection are flange arrangement, adopts flange spool to connect.
Claims (5)
1. novel throttling manifold that is used for controlled pressure drilling, mainly form by four-way (1), instrument pipe nipple (2), six logical (3), pneuamtic plate valves (4), choke valve (5), filtration four-way (6), manual flap type (7), microscler eight logical (8), ball valves (9), mass flowmenter (10) and ball-and-seat (11), the inlet connecting line of four-way (1), it is characterized in that: four-way (1) connects three pipelines and is divided into three the tunnel, and first via pipeline is connected with the swivel control head port of export of controlled pressure drilling system; The second road pipeline is connected with instrument pipe nipple (2) and is connected with six logical (3) of main choke manifold by instrument pipe nipple (2); The Third Road pipeline is connected with pneuamtic plate valve (4), four-way (1), choke valve (5), filtration four-way (6), manual flap type (7), four-way (1) and ball-and-seat (11) in turn, on the four-way (1) between Third Road pipeline pneuamtic plate valve (4) and the choke valve (5), there is pipeline to link to each other with the drain side of backpressure pump, be connected with three pipelines on microscler eight logical (8) of main choke manifold, article one pipeline is connected with the ball-and-seat (11) of Third Road pipeline; The second pipeline is connected with ball valve (9); Article three, pipeline is connected with ball valve (9), mass flowmenter (10) and ball valve (9) in turn; The other end of second pipeline upper ball valve (9) is connected with pipeline, and the pipeline that connects of ball valve (9) other end that is connected with mass flowmenter (10) is connected on second pipeline and the pipeline that ball valve (9) other end is connected.
2. the novel throttling manifold that is used for controlled pressure drilling according to claim 1, it is characterized in that: described main choke manifold comprises six logical (3), pneuamtic plate valves (4), choke valve (5), filters four-way (6), manual flap type (7) and microscler eight logical (8), is connected with manual flap type (7) by pipeline between six logical (3) and microscler eight logical (8); Also symmetry is connected with pneuamtic plate valve (4), choke valve (5) in turn, filters four-way (6) and manual flap type (7) between six logical (3) and microscler eight logical (8).
3. the novel throttling manifold that is used for controlled pressure drilling according to claim 1 and 2 is characterized in that: the described novel throttling manifold that is used for controlled pressure drilling is fixed on sledge dress base.
4. the novel throttling manifold that is used for controlled pressure drilling according to claim 1 and 2 is characterized in that: it is to adopt the direct or flange spool connection of pipeline that described pipeline connects.
5. the novel throttling manifold that is used for controlled pressure drilling according to claim 1 and 2 is characterized in that: on instrument pipe nipple (2) and choke valve (5) pressure sensor is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202468468U CN201546648U (en) | 2009-11-11 | 2009-11-11 | Novel throttle manifold for managed pressure drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202468468U CN201546648U (en) | 2009-11-11 | 2009-11-11 | Novel throttle manifold for managed pressure drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201546648U true CN201546648U (en) | 2010-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202468468U Expired - Lifetime CN201546648U (en) | 2009-11-11 | 2009-11-11 | Novel throttle manifold for managed pressure drilling |
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| CN (1) | CN201546648U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102418509A (en) * | 2010-09-28 | 2012-04-18 | 中国石油化工集团公司 | Indoor test system and method for managed pressure drilling technology |
| CN102454373A (en) * | 2010-10-19 | 2012-05-16 | 中国石油化工集团公司 | Throttle manifold for controlled pressure drilling |
| CN102536191A (en) * | 2012-03-15 | 2012-07-04 | 中国石油集团西部钻探工程有限公司 | Automatic throttle control device for pressure-controlled well drilling |
| CN102828712A (en) * | 2012-09-13 | 2012-12-19 | 中国石油大学(华东) | Double-throttle control slurry pump distributing manifold for applying wellhead back pressure and method |
| CN103061698A (en) * | 2011-10-24 | 2013-04-24 | 中国石油化工股份有限公司 | Automatic throttling pipe converging system |
| CN104563870A (en) * | 2013-10-27 | 2015-04-29 | 中国石油化工集团公司 | Pressure-controlled gas drilling device and method |
| CN110886585A (en) * | 2019-12-02 | 2020-03-17 | 中国石油集团西部钻探工程有限公司 | Automatic throttle control device for back pressure compensation in drilling operation and use method thereof |
-
2009
- 2009-11-11 CN CN2009202468468U patent/CN201546648U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102418509A (en) * | 2010-09-28 | 2012-04-18 | 中国石油化工集团公司 | Indoor test system and method for managed pressure drilling technology |
| CN102418509B (en) * | 2010-09-28 | 2014-07-09 | 中国石油化工集团公司 | Indoor test system and method for managed pressure drilling technology |
| CN102454373A (en) * | 2010-10-19 | 2012-05-16 | 中国石油化工集团公司 | Throttle manifold for controlled pressure drilling |
| CN103061698A (en) * | 2011-10-24 | 2013-04-24 | 中国石油化工股份有限公司 | Automatic throttling pipe converging system |
| CN102536191A (en) * | 2012-03-15 | 2012-07-04 | 中国石油集团西部钻探工程有限公司 | Automatic throttle control device for pressure-controlled well drilling |
| CN102828712A (en) * | 2012-09-13 | 2012-12-19 | 中国石油大学(华东) | Double-throttle control slurry pump distributing manifold for applying wellhead back pressure and method |
| CN102828712B (en) * | 2012-09-13 | 2014-02-19 | 中国石油大学(华东) | Double-throttle control slurry pump distributing manifold for applying wellhead back pressure and method |
| CN104563870A (en) * | 2013-10-27 | 2015-04-29 | 中国石油化工集团公司 | Pressure-controlled gas drilling device and method |
| CN110886585A (en) * | 2019-12-02 | 2020-03-17 | 中国石油集团西部钻探工程有限公司 | Automatic throttle control device for back pressure compensation in drilling operation and use method thereof |
| CN110886585B (en) * | 2019-12-02 | 2022-02-08 | 中国石油集团西部钻探工程有限公司 | Automatic throttle control device for back pressure compensation in drilling operation and use method thereof |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100811 |