CN203412535U - Drilling fluid shunt device for starting or stopping pump through multiple steps - Google Patents

Drilling fluid shunt device for starting or stopping pump through multiple steps Download PDF

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Publication number
CN203412535U
CN203412535U CN201320463183.1U CN201320463183U CN203412535U CN 203412535 U CN203412535 U CN 203412535U CN 201320463183 U CN201320463183 U CN 201320463183U CN 203412535 U CN203412535 U CN 203412535U
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CN
China
Prior art keywords
pipeline
drilling
liquid
drilling fluid
pump
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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
Application number
CN201320463183.1U
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Chinese (zh)
Inventor
伊明
宋朝晖
刘永伟
兰作军
杨兆亮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CNPC Xibu Drilling Engineering Co Ltd
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CNPC Xibu Drilling Engineering Co Ltd
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Priority to CN201320463183.1U priority Critical patent/CN203412535U/en
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Publication of CN203412535U publication Critical patent/CN203412535U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model relates to a drilling fluid shunt device, which belongs to the technical field of oil gas well drilling and is a drilling fluid shunt device for starting or stopping a pump through multiple steps. The drilling fluid shunt device comprises a rotating control head, a well bore drilling tool, a pressure controlling well drilling choke manifold, a liquid-gas separator, a cone depositing tank, a drilling fluid circulation tank and a well drilling pump, wherein a first liquid outlet end of the rotating control head and a first liquid inlet end of the pressure controlling well drilling choke manifold are fixedly connected together through a first pipeline, and a liquid outlet end of the pressure controlling well drilling choke manifold and a liquid inlet end of the liquid-gas separator are fixedly connected together through a second pipeline. The drilling fluid shunt device provided by the utility model has the advantages that the structure is reasonable and compact, the use is convenient, the drilling fluid flow achieves a setting requirement under the working conditions such as starting or stopping the pump through enabling a back pressure pump, the pressure controlling well drilling choke manifold and a throttling valve to match to use, the pressure controlling well drilling purpose is realized, the drilling fluid shunt device has the characteristics that the drilling fluid shunt device is safe and reliable, and is convenient to control and operate, and the operating efficiency is improved.

Description

Substep opens the drilling fluid part flow arrangement of pump termination of pumping
Technical field
the utility model relates to oil/gas drilling drilling fluid part flow arrangement technical field, is the drilling fluid part flow arrangement that a kind of substep opens pump termination of pumping.
Background technology
controlled pressure drilling technology (MPD:Managed Pressure Drilling), Chinese literal translation is: government pressure drilling well is for accurately controlling the suitable drilling program of whole well section pressure.MPD is mainly by the Comprehensive Control to wellhead back pressure, drilling liquid parameter (density, viscosity, discharge capacity), annular pressure lost etc., the pressure of whole pit shaft is maintained between formation pore pressure and fracture pressure (leakage pressure), carry out balance or near-balance drilling, to solve conventional drilling, because barometric gradient changes, cause well kick and miss the problems such as difficult treatment, reducing nonproductive time and reduce drilling well risk.MPD is specially adapted to the narrow Density Window stratum of " spray is leaked with layer ".At controlled pressure drilling, open in pump/termination of pumping work progress, require borehole pump to open step by step pump/termination of pumping by the strokes per minute of setting, to realize the drilling fluid displacement entering in pit shaft, by the ladder formula weight of setting, increased/reduced, but mud flow rate when rig (especially machine dimensions drill) opens pump/termination of pumping cannot accurately be controlled, and can not meet the requirement of controlled pressure drilling to borehole pump start-stop.
Summary of the invention
the drilling fluid part flow arrangement that the utility model provides a kind of substep to open pump termination of pumping, overcome the deficiency of above-mentioned prior art, mud flow rate when it can effectively solve rig and opens pump/termination of pumping cannot accurately be controlled and can not meet the problem of controlled pressure drilling to the requirement of borehole pump start-stop.
the technical solution of the utility model realizes by following measures: a kind of substep opens the drilling fluid part flow arrangement of pump termination of pumping, comprises swivel control head, pit shaft drilling tool, controlled pressure drilling choke manifold, liquid-gas separator, taper settling tank, well-drilling liquid circulation pot and borehole pump, the first outlet end of swivel control head and the first liquid feeding end of controlled pressure drilling choke manifold are fixed together by the first pipeline, the outlet end of controlled pressure drilling choke manifold and the liquid feeding end of liquid-gas separator are fixed together by the second pipeline, the liquid feeding end of the outlet end of liquid-gas separator and taper settling tank is fixed together by the 3rd pipeline, the first liquid feeding end of the outlet end of taper settling tank and the well-drilling liquid circulation pot of at least one is fixed together by the 4th pipeline, the first outlet end of well-drilling liquid circulation pot and the liquid feeding end of borehole pump are fixed together by the 5th pipeline, the liquid feeding end of the outlet end of borehole pump and pit shaft drilling tool is fixed together by the 6th pipeline, on the second liquid feeding end of well-drilling liquid circulation pot, be fixedly connected with the 7th pipeline, the 7th pipeline and the 6th pipeline are fixed together, and near on the 7th pipeline of well-drilling liquid circulation pot, are being fixedly connected with choke valve, the second outlet end of well-drilling liquid circulation pot and the second liquid feeding end of controlled pressure drilling choke manifold are fixed together by the 8th pipeline, on the 8th pipeline, are installed with backpressure pump.
the further optimization and/or improvements to above-mentioned utility model technical scheme below:
above-mentionedly on the 7th pipeline away from well-drilling liquid circulation pot, be installed with slide valve.
on above-mentioned the 7th pipeline between choke valve and slide valve, be installed with ball-and-seat.
there is drilling team's choke manifold in the above-mentioned outside at liquid-gas separator, the second outlet end of swivel control head and the liquid feeding end of drilling team's choke manifold are fixed together by the 9th high pressure line, on the outlet end of drilling team's choke manifold, be fixedly connected with the tenth high pressure line, the tenth high pressure line and the second pipeline are fixed together, on the 9th high pressure line, be installed with valve, on the tenth high pressure line, be installed with valve.
above-mentionedly on the outlet side of liquid-gas separator, be fixedly connected with escape pipe.
above-mentionedly on the first pipeline, the second pipeline, the 3rd pipeline, the 4th pipeline, the 5th pipeline, the 6th pipeline and the 8th pipeline, be installed with respectively valve.
the utility model reasonable and compact in structure, easy to use, by being used in conjunction with of backpressure pump, controlled pressure drilling choke manifold and choke valve, make mud flow rate reach setting requirement opening under the working conditions such as pump, termination of pumping, realize the object of controlled pressure drilling, have safe and reliable and control feature easily, having facilitated operation, having improved operating efficiency.
Accompanying drawing explanation
accompanying drawing 1 is the process flow diagram of the utility model most preferred embodiment.
coding in accompanying drawing is respectively: 1 is swivel control head, 2 is controlled pressure drilling choke manifold, 3 is liquid-gas separator, 4 is taper settling tank, 5 is well-drilling liquid circulation pot, 6 is borehole pump, 7 is the first pipeline, 8 is the second pipeline, 9 is the 3rd pipeline, 10 is the 4th pipeline, 11 is the 5th pipeline, 12 is the 6th pipeline, 13 is the 7th pipeline, 14 is choke valve, 15 is the 8th pipeline, 16 is backpressure pump, 17Wei drilling team choke manifold, 18 is the 9th high pressure line, 19 is the tenth high pressure line, 20 is slide valve, 21 is ball-and-seat, 22 is escape pipe, 23 is valve, 24 is pit shaft.
The specific embodiment
the utility model is not subject to the restriction of following embodiment, can determine concrete embodiment according to the technical solution of the utility model and actual conditions.
in the utility model, for convenience of description, the description of the relative position relation of each parts is to be all described according to the Butut mode of Figure of description 1, as: the position relationship of forward and backward, upper and lower, left and right etc. is to determine according to the Butut direction of Figure of description 1.
below in conjunction with embodiment and accompanying drawing, the utility model is further described:
as shown in Figure 1, this drilling fluid part flow arrangement that opens step by step pump termination of pumping comprises swivel control head 1, pit shaft drilling tool, controlled pressure drilling choke manifold 2, liquid-gas separator 3, taper settling tank 4, well-drilling liquid circulation pot 5 and borehole pump 6, the first outlet end of swivel control head 1 and the first liquid feeding end of controlled pressure drilling choke manifold 2 are fixed together by the first pipeline 7, the liquid feeding end of the outlet end of controlled pressure drilling choke manifold 2 and liquid-gas separator 3 is fixed together by the second pipeline 8, the liquid feeding end of the outlet end of liquid-gas separator 3 and taper settling tank 4 is fixed together by the 3rd pipeline 9, the first liquid feeding end of the outlet end of taper settling tank 4 and the well-drilling liquid circulation pot 5 of at least one is fixed together by the 4th pipeline 10, the first outlet end of well-drilling liquid circulation pot 5 and the liquid feeding end of borehole pump 6 are fixed together by the 5th pipeline 11, the liquid feeding end of the outlet end of borehole pump 6 and pit shaft drilling tool is fixed together by the 6th pipeline 12, on the second liquid feeding end of well-drilling liquid circulation pot 5, be fixedly connected with the 7th pipeline 13, the seven pipelines 13 and the 6th pipeline 12 and be fixed together, near on the 7th pipeline 13 of well-drilling liquid circulation pot 5, be fixedly connected with choke valve 14, the second outlet end of well-drilling liquid circulation pot 5 and the second liquid feeding end of controlled pressure drilling choke manifold 2 are fixed together by the 8th pipeline 15, on the 8th pipeline 15, are installed with backpressure pump 16.Like this, the drilling fluid with solid particle and gas that mineshaft annulus is returned out is through the first outlet end of swivel control head 1, the first pipeline 7, controlled pressure drilling choke manifold 2, the second pipeline 8 enters in liquid-gas separator 3, by liquid-gas separator 3, the gas in drilling fluid and most of solid particle are separated, most of solid particle of separating is discharged through the sewage draining exit of liquid-gas separator 3, the gas of separating is discharged through the outlet side of liquid-gas separator 3, drilling fluid after liquid-gas separator 3 separation flows in taper settling tank 4 through the 3rd pipeline 9, drilling fluid precipitates solid particle tiny in drilling fluid by the 4th pipeline 10 through taper settling tank 4, well-drilling liquid circulation pot 5, the 5th pipeline 11, finally by borehole pump 6, by the 6th pipeline 12, pumped in pit shaft drilling tool.Pit shaft drilling tool is arranged in pit shaft 24.
can be according to actual needs, the drilling fluid part flow arrangement that above-mentioned substep is opened to pump termination of pumping makes further optimization and/or improvements:
as shown in Figure 1, on the 7th pipeline 13 away from well-drilling liquid circulation pot 5, be installed with slide valve 20.Like this, slide valve 20 is installed and is convenient to better protect choke valve 14, make the longer service life of choke valve 14.
as shown in Figure 1, on the 7th pipeline 13 between choke valve 14 and slide valve 20, be installed with ball-and-seat 21.Like this, ball-and-seat 21 is convenient to control the flow direction of drilling fluid.
as shown in Figure 1, there is drilling team's choke manifold 17 in the above-mentioned outside at liquid-gas separator 3, the second outlet end of swivel control head 1 and the liquid feeding end of drilling team's choke manifold 17 are fixed together by the 9th high pressure line 18, on the outlet end of drilling team's choke manifold 17, be fixedly connected with the tenth high pressure line 19, the tenth high pressure line 19 and the second pipeline 8 are fixed together, on the 9th high pressure line 18, be installed with valve 23, on the tenth high pressure line 19, be installed with valve 23.When like this, drilling team's choke manifold 17 is convenient to meet an urgent need, use.
as shown in Figure 1, on the outlet side of liquid-gas separator 3, be fixedly connected with escape pipe 22.Like this, escape pipe 22 is convenient to the gas of separating in liquid-gas separator 3 to discharge by escape pipe 22.
as shown in Figure 1, on the first pipeline 7, the second pipeline 8, the 3rd pipeline 9, the 4th pipeline 10, the 5th pipeline 11, the 6th pipeline 12 and the 8th pipeline 15, be installed with respectively valve 23; The first pipeline 7, the second pipeline 8, the 3rd pipeline 9, the 4th pipeline 10, the 5th pipeline 11, the 6th pipeline 12, the 7th pipeline 13 and the 8th pipeline 15 are high pressure line; Valve 23 during use on the 9th high pressure line 18 and the tenth high pressure line 19 is in closed condition, and the valve 23 on the first pipeline 7, the second pipeline 8, the 3rd pipeline 9, the 4th pipeline 10, the 5th pipeline 11, the 6th pipeline 12 and the 8th pipeline 15 is all in open mode; Pressure-bearing rank of the present utility model is 35MPa.
above technical characterictic has formed most preferred embodiment of the present utility model, and it has stronger compliance and best implementation result, can increase and decrease according to actual needs non-essential technical characterictic, meets the demand of different situations.
processing step of the present utility model is as follows:
a. normal drilling well or circulation:
the normal drilling well of the utility model or circulation time, slide valve 20 on the 7th pipeline 13 and choke valve 14 are all in closed condition, the drilling liquid flow that mineshaft annulus is returned out is through the first outlet end of swivel control head 1, the first pipeline 7, controlled pressure drilling choke manifold 2, the second pipeline 8, liquid-gas separator 3, the 3rd pipeline 9, taper settling tank 4, the 4th pipeline 10, well-drilling liquid circulation pot 5, the 5th pipeline 11, finally by borehole pump 6, by the 6th pipeline 12, pumped in pit shaft drilling tool, flow through again the first outlet end of swivel control head 1 of the drilling fluid that mineshaft annulus is returned out flows into controlled pressure drilling choke manifolds 2 by the first pipeline 7, so circulation.
. termination of pumping:
the target of controlled pressure drilling is in whole drilling process, to remain that bottom pressure is stable, under trip-out, the operating mode that makes up a joint, need to carry out termination of pumping operation, during existing apparatus rig (especially machine dimensions drill) termination of pumping, can not accurately control the mud flow rate flowing in pit shaft, make shaft bottom produce larger pressure oscillation, can not meet controlled pressure drilling requirement; By the utility model, can in whole drilling process, remain that bottom pressure is stable, the utility model termination of pumping operation concrete operations are as follows: open the slide valve 20 on the 7th pipeline 13, progressively open the choke valve 14 on the 7th pipeline 13, with shunting, enter the drilling fluid in pit shaft drilling tool, the flow that realization enters the drilling fluid in pit shaft drilling tool reduces by the staged of setting; Treat that the choke valve 14 on the 7th pipeline 13 is opened into a certain degree, open the operation that backpressure pump 16 on the 8th pipeline 15 coordinates controlled pressure drilling choke manifold 2 simultaneously, carry out back pressure control, to reach wellbore pressure balance, realize the smooth transition of whole pit shaft internal pressure; Treat that transition finishes, close borehole pump 6, finally close the slide valve 20 on the 7th pipeline 13, by controlled pressure drilling choke manifold 2 and backpressure pump 16, control back pressure and operate.
. open pump:
existing apparatus opens the fluctuation of pump operation meeting build-up of pressure, but by the utility model, can realize and act on the stable of bottom pressure; It is as follows that the utility model opens the concrete operations of pump: first the slide valve 20 on the 7th pipeline 13 and choke valve 14 are opened completely, started borehole pump 6, the drilling fluid that makes to pump in pit shaft drilling tool all branches in well-drilling liquid circulation pot 5 through the 7th pipeline 13; Then progressively turn down the choke valve 14 on the 7th pipeline 13, the flow that enters the drilling fluid in pit shaft drilling tool to realize increases by the staged of setting; When turning down choke valve on the 7th pipeline 13 14, coordinate controlled pressure drilling choke manifold 2 and backpressure pump 16 to control back pressure operation, keep wellbore pressure balance, what reach controlled pressure drilling opens pump requirement, realizes the smooth transition of whole pit shaft internal pressure; Pump process to be opened finishes, and the backpressure pump 16 on the 8th pipeline 15 is closed, and proceeds to step a, implements normal drilling well or circulation.

Claims (10)

1. substep opens a drilling fluid part flow arrangement for pump termination of pumping, it is characterized in that comprising swivel control head, pit shaft drilling tool, controlled pressure drilling choke manifold, liquid-gas separator, taper settling tank, well-drilling liquid circulation pot and borehole pump, the first outlet end of swivel control head and the first liquid feeding end of controlled pressure drilling choke manifold are fixed together by the first pipeline, the outlet end of controlled pressure drilling choke manifold and the liquid feeding end of liquid-gas separator are fixed together by the second pipeline, the liquid feeding end of the outlet end of liquid-gas separator and taper settling tank is fixed together by the 3rd pipeline, the first liquid feeding end of the outlet end of taper settling tank and the well-drilling liquid circulation pot of at least one is fixed together by the 4th pipeline, the first outlet end of well-drilling liquid circulation pot and the liquid feeding end of borehole pump are fixed together by the 5th pipeline, the liquid feeding end of the outlet end of borehole pump and pit shaft drilling tool is fixed together by the 6th pipeline, on the second liquid feeding end of well-drilling liquid circulation pot, be fixedly connected with the 7th pipeline, the 7th pipeline and the 6th pipeline are fixed together, and near on the 7th pipeline of well-drilling liquid circulation pot, are being fixedly connected with choke valve, the second outlet end of well-drilling liquid circulation pot and the second liquid feeding end of controlled pressure drilling choke manifold are fixed together by the 8th pipeline, on the 8th pipeline, are installed with backpressure pump.
2. substep according to claim 1 opens the drilling fluid part flow arrangement of pump termination of pumping, it is characterized in that being installed with slide valve on the 7th pipeline away from well-drilling liquid circulation pot.
3. substep according to claim 2 opens the drilling fluid part flow arrangement of pump termination of pumping, it is characterized in that being installed with ball-and-seat on the 7th pipeline between choke valve and slide valve.
4. according to the substep described in claim 1 or 2 or 3, open the drilling fluid part flow arrangement of pump termination of pumping, there is drilling team's choke manifold in the outside that it is characterized in that liquid-gas separator, the second outlet end of swivel control head and the liquid feeding end of drilling team's choke manifold are fixed together by the 9th high pressure line, on the outlet end of drilling team's choke manifold, be fixedly connected with the tenth high pressure line, the tenth high pressure line and the second pipeline are fixed together, on the 9th high pressure line, be installed with valve, on the tenth high pressure line, be installed with valve.
5. according to the substep described in claim 1 or 2 or 3, open the drilling fluid part flow arrangement of pump termination of pumping, it is characterized in that being fixedly connected with escape pipe on the outlet side of liquid-gas separator.
6. substep according to claim 4 opens the drilling fluid part flow arrangement of pump termination of pumping, it is characterized in that being fixedly connected with escape pipe on the outlet side of liquid-gas separator.
7. according to the substep described in claim 1 or 2 or 3, open the drilling fluid part flow arrangement of pump termination of pumping, it is characterized in that being installed with respectively valve on the first pipeline, the second pipeline, the 3rd pipeline, the 4th pipeline, the 5th pipeline, the 6th pipeline and the 8th pipeline.
8. substep according to claim 6 opens the drilling fluid part flow arrangement of pump termination of pumping, it is characterized in that being installed with respectively valve on the first pipeline, the second pipeline, the 3rd pipeline, the 4th pipeline, the 5th pipeline, the 6th pipeline and the 8th pipeline.
9. according to the substep described in claim 1 or 2 or 3, open the drilling fluid part flow arrangement of pump termination of pumping, it is characterized in that the first pipeline, the second pipeline, the 3rd pipeline, the 4th pipeline, the 5th pipeline, the 6th pipeline, the 7th pipeline and the 8th pipeline are high pressure line.
10. substep according to claim 6 opens the drilling fluid part flow arrangement of pump termination of pumping, it is characterized in that the first pipeline, the second pipeline, the 3rd pipeline, the 4th pipeline, the 5th pipeline, the 6th pipeline, the 7th pipeline and the 8th pipeline are high pressure line.
CN201320463183.1U 2013-07-31 2013-07-31 Drilling fluid shunt device for starting or stopping pump through multiple steps Expired - Fee Related CN203412535U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106401512A (en) * 2016-10-09 2017-02-15 中国石油集团渤海钻探工程有限公司 Pressure-control drilling system utilizing automatic shunt manifold for pressure-control drilling and pressure-control drilling method
CN110284847A (en) * 2019-01-29 2019-09-27 长江大学 A kind of drilling-fluid circulation system reducing drilling well trip-out swabbing pressure
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

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106401512A (en) * 2016-10-09 2017-02-15 中国石油集团渤海钻探工程有限公司 Pressure-control drilling system utilizing automatic shunt manifold for pressure-control drilling and pressure-control drilling method
CN106401512B (en) * 2016-10-09 2019-04-12 中国石油集团渤海钻探工程有限公司 A kind of managed pressure drilling system and its controlled pressure drilling method using controlled pressure drilling automatic shunt manifold
CN110284847A (en) * 2019-01-29 2019-09-27 长江大学 A kind of drilling-fluid circulation system reducing drilling well trip-out swabbing pressure
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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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140129

Termination date: 20200731

CF01 Termination of patent right due to non-payment of annual fee