CN104675350A - Energy-saving solid control system - Google Patents
Energy-saving solid control system Download PDFInfo
- Publication number
- CN104675350A CN104675350A CN201310618854.1A CN201310618854A CN104675350A CN 104675350 A CN104675350 A CN 104675350A CN 201310618854 A CN201310618854 A CN 201310618854A CN 104675350 A CN104675350 A CN 104675350A
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- Prior art keywords
- mud
- solid controlling
- solid
- energy
- solid control
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- 239000007787 solid Substances 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 claims abstract description 28
- 230000008569 process Effects 0.000 claims abstract description 26
- 238000005553 drilling Methods 0.000 claims abstract description 8
- 238000004134 energy conservation Methods 0.000 claims description 6
- 239000003814 drug Substances 0.000 claims description 5
- 238000005265 energy consumption Methods 0.000 claims description 4
- 239000004927 clay Substances 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims 1
- 239000004576 sand Substances 0.000 abstract description 5
- 239000004568 cement Substances 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 239000007790 solid phase Substances 0.000 description 16
- 239000002002 slurry Substances 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 239000000084 colloidal system Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 3
- 229910052601 baryte Inorganic materials 0.000 description 3
- 239000010428 baryte Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004537 pulping Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/063—Arrangements for treating drilling fluids outside the borehole by separating components
- E21B21/065—Separating solids from drilling fluids
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Centrifugal Separators (AREA)
Abstract
The invention discloses an energy-saving solid control system. The system is that the original four-stage solid control process is simplified into two-stage solid control process, which is the optimal working mode after carefully analyzing the working state of a plurality of field drilling well site solid control systems. According to the system, the quantity of vibrating screens is increased; a sand remover and a mud remover are integrated; the sand remover and the mud remover are generally avoided using in the solid control process; in case of a cement stratum, the sand remover and the mud remover are integrated and temporarily used in the solid control process; the solid control process is scientifically changed, so that lots of energy can be saved, the working efficiency can be increased, and the solid control cost can be greatly decreased.
Description
Technical field
The present invention relates to a kind of energy-conservation solid controlling flow process, belong to solid controlling field, rig well site.
Background technology
Solids control for drilling fluids is the core of drilling-fluid circulation system, and divide according to solid controlling classification principle, the process of drilling fluid and the solid control equipment program of putting are vibrosieve+desander, desilter+centrifuge+big-and-middle discharge capacity centrifuge, belong to level Four solid controlling. vibrosieve is the first order tap device of solid controlling system, and only has it to be full overcurrent process, and therefore vibrosieve reliability is very important, and the quality of its service behaviour directly affects the rear working effect of what solid control equipment and the quality of mud system.Vibrating the service behaviour be sieved is exactly that vibrosieve treating capacity is large, and spoil disposal is smooth, adapts to the use of high order number sieve net, and normal work can reach more than 120 orders.Desander is the second level solid control equipment in solid control equipment, and its operating principle is the centrifugation of cyclone and gravity sediment outflow phase compound.Mud handled by desander is the saturating sieve overflow mud of vibrosieve, its processing procedure is not full overcurrent, slurry transportation operation power is provided by 75KW sand pump, its burble point is about 74 μm, and (burble point is the work by separation equipment, have a kind of particle respectively to account for 50% in underflow and overflow, this granularity point is the burble point of this equipment).The underflow of desander can also carry out mud veclamation through cleaner.Desilter is the third level solid control equipment in solid control equipment, its operating principle is the same with desander, just working range is different, mud handled by desilter is desander overflow mud, its processing procedure neither overcurrent entirely, slurry transportation operation power is provided by 75KW sand pump, and its burble point is about 74 μm, and the underflow of desilter can also carry out mud veclamation through cleaner.Centrifuge is the fourth stage solid control equipment in solid control equipment, mud handled by it is desilter overflow mud, its operating principle is bowl High Rotation Speed, make solid phase in mud by granular size gradient sedimentation under the influence of centrifugal force, have differential spiral propeller to be separated to rotary drum the corresponding bulky grain solid phase of sedimentation is released, Here it is underflow.The mud mother liquor reflux of clear matter in tank, overflow that Here it is.The burble point middling speed of centrifuge is 1 one 5 μm.Low speed is 10 1 15 μm.The operating efficiency of centrifuge is higher.Through the investigation and analysis at our scene, multiple well site, statistics result is: vibrosieve: installation rate 100%, utilization rate 100%, rate 96% working properly, reaches 100 high eye mesh screen utilization rates 82%.Desander: installation rate 100%, utilization rate 41%, rate 8.5% working properly.Desilter: installation rate 94%, utilization rate: 33%, rate 5.7% working properly.Centrifuge: (middling speed), installation rate 100%, utilization rate (non-weighted mud) 97%, utilization rate (weighted mud) 7.7%, rate 94% working properly.Centrifuge (at a high speed): installation rate 0%., by Field Research, obtains as drawn a conclusion.1) vibrosieve uses relatively good, can use the ratio of high eye mesh screen higher, but this is not overall process, and especially 1 open when to open with 2 that pulping is very serious in earlier stage, major part can only use 40-80 orders.2) desander, desilter result of use are very poor, and after vibrosieve uses 100 eye mesh screens, desander, desilter go out material hardly, and especially 1 open when to open with 2 that early stage, pulping was very serious, and normal work ratio is very low again.3) centrifuge result of use in non-weighted mud system is fine, but cannot use in weighted mud system, because the barite increased the weight of, Iron Ore Powder is separated discharge in a large number, destroys weighted mud system.
Summary of the invention
The object of the invention is to solve the deficiencies in the prior art, shown by repeatedly field trial, adopt the novel two-stage solid controlling system be made up of efficient oscillating screen+variable frequency centrifuge, can save desander and desilter, energy-saving effect is obvious.Also classified filtering technology can be adopted, the existing solid controlling system of thorough change, also can save the equipment such as desander and desilter, greatly simplify solid controlling system, alleviate drilling team's generator load, optimize slurry tank configuration, reduce transition slurry tank quantity, increase conservation tank quantity, thus significantly improve solid controlling efficiency, shorten the processing time, increase the safety of drilling well.One can be provided to make mud keep density for new technology and viscosity reduces greatly, centrifuge is made to play the effect of secrecy viscosity reduction degree, while significantly saving mud cost, ensure the control to mud system performance, greatly can also reduce the energy consumption of solid controlling process.
The object of the invention is to be achieved through the following technical solutions: level Four solid controlling that need not be original but adopt novel secondary solid controlling: i.e. vibrosieve+centrifuge, be equipped with four or five high performance vibrosieves, last vibrosieve is joined desanding desilter all-in-one, next join 40 1 50m
3middling speed huge discharge centrifuge 40 1 50m of/h
3/ h supercentrifuge.The onset point of this scheme is under normal circumstances, can start three or four vibrosieves simultaneously, a vibrosieve for subsequent use.Ensure that Vibration Screen mesh number reaches more than 120 orders under normal circumstances, desanding, desilter all-in-one are for subsequent use as the one used when running into clay stratum, normally no.In light mud, centrifuge is mainly used in except solid phase, sequentially principle process, the workflow of centrifuge is that mud after vibrosieve process enters slurry as middling speed huge discharge centrifuge, middling speed huge discharge centrifuge treating capacity is 40 1 50m3/h, burble point 10 1 20 μm, oarse-grained harmful solid phase can be gone from underflow opening eliminating by it, and the overflow after desanding is got back in tank.In weighted mud, when mud viscosity is very large, and medium density or on the low side time, this illustrate the ultra-fine solid phase of mud and colloid solid concentration too high, and this granularity is about 2 μm, therefore, need to reclaim the underflow of middling speed huge discharge centrifuge, its underflow major part is barite and Iron Ore Powder, is conducive to ensureing density, and flooding point major part is ultra-fine solid phase and colloid solid phase, must process.Can it can be used as the slurry that spouts of supercentrifuge, the burble point of supercentrifuge is 1 one 5 μm.Therefore, can by its colloid solid phase after supercentrifuge work, the underflow stream of superfine solid phase is discharged to outside tank, and the synthesis premium mud lightweight containing water and medicine is overflowed back flow to dilute in mid-speed centrifuge underflow recovery bin with slurry, mud system just can keep mud density and viscosity reduces greatly, make centrifuge play the effect of secrecy viscosity reduction degree, while significantly saving mud cost, ensure the control to weighted mud system performance, greatly can also reduce the energy consumption of solid controlling process.
The invention has the beneficial effects as follows:
1) efficient oscillating screen quantity of the present invention increase significantly improves treating capacity, thus overall process can use high order number sieve net (more than 100 orders), makes the beforehand control of mud system have guarantee.
2) normal conditions of the present invention stop the use of desanding desilt all-in-one to save the power consumption of 55KW*2=110KW.
3) use of high speed huge discharge centrifuge of the present invention can control the solid concentration of non-weighted mud, ensures density and the viscosity of mud.
4) can effectively the controlling with the use of to the density of weighted mud and viscosity of high speed huge discharge centrifuge of the present invention.
5) technical solution of the present invention can save a large amount of mud medicine, reduces drilling cost.
Accompanying drawing explanation
Fig. 1 is old process flow diagram;
Fig. 2 is present invention process schematic flow sheet;
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail, as shown in Figure 2, level Four solid controlling that need not be original but adopt novel secondary solid controlling: i.e. vibrosieve+centrifuge, be equipped with four or five high performance vibrosieves, last vibrosieve is joined desanding desilter all-in-one, next join 40 1 50m
3middling speed huge discharge centrifuge 40 1 50m of/h
3/ h supercentrifuge.The onset point of this scheme is under normal circumstances, can start three or four vibrosieves simultaneously, a vibrosieve for subsequent use.Ensure that Vibration Screen mesh number reaches more than 120 orders under normal circumstances, desanding, desilter all-in-one are for subsequent use as the one used when running into clay stratum, normally no.In light mud, centrifuge is mainly used in except solid phase, sequentially principle process, the workflow of centrifuge is that mud after vibrosieve process enters slurry as middling speed huge discharge centrifuge, middling speed huge discharge centrifuge treating capacity is 40 1 50m3/h, burble point 10 1 20 μm, oarse-grained harmful solid phase can be gone from underflow opening eliminating by it, and the overflow after desanding is got back in tank.In weighted mud, when mud viscosity is very large, and medium density or on the low side time, this illustrate the ultra-fine solid phase of mud and colloid solid concentration too high, and this granularity is about 2 μm, therefore, need to reclaim the underflow of middling speed huge discharge centrifuge, its underflow major part is barite and Iron Ore Powder, is conducive to ensureing density, and flooding point major part is ultra-fine solid phase and colloid solid phase, must process.Can it can be used as the slurry that spouts of supercentrifuge, the burble point of supercentrifuge is 1 one 5 μm.Therefore, can by its colloid solid phase after supercentrifuge work, the underflow stream of superfine solid phase is discharged to outside tank, and the synthesis premium mud lightweight containing water and medicine is overflowed back flow to dilute in mid-speed centrifuge underflow recovery bin with slurry, mud system just can keep mud density and viscosity reduces greatly, make centrifuge play the effect of secrecy viscosity reduction degree, while significantly saving mud cost, ensure the control to weighted mud system performance, greatly can also reduce the energy consumption of solid controlling process.The benefit brought like this is: 1) increase of efficient oscillating screen quantity significantly improves treating capacity, thus overall process can use high order number sieve net (more than 100 orders), makes the beforehand control of mud system have guarantee.2) normal conditions stop the use of desanding desilt all-in-one to save the power consumption of 55KW*2=110KW.3) use of high speed huge discharge centrifuge can control the solid concentration of non-weighted mud, ensures density and the viscosity of mud.4) can effectively the controlling with the use of to the density of weighted mud and viscosity of high speed huge discharge centrifuge.5) above scheme can save a large amount of mud medicine, reduces drilling cost.6) and Fig. 1 compare because whole transmission distance is short a lot, treatment effeciency is greatly improved, and is subject to the welcome of site operation personnel.
Claims (4)
1. an energy-conservation solid controlling system, is characterized in that: the solid controlling treating apparatus comprising secondary, has saved energy consumption, improve treatment effeciency, be suitable for general mud purification treatment system, to when running into clay stratum, desanding for subsequent use, desilt integral machine can be come into operation.
2. energy-conservation solid controlling system according to claim 1, it is characterized in that: described solid controlling handling process becomes the secondary solid controlling flow process of science by original level Four solid controlling process simplification, the increase of efficient oscillating screen quantity significantly improves treating capacity, makes the beforehand control of mud system have guarantee.
3.
.energy-conservation solid controlling system according to claim 1, it is characterized in that: the use of the described middle and high fast huge discharge centrifuge in novel solid controlling flow process can control the solid concentration of mud, ensure density and the viscosity of mud, improve the disposal ability of solid controlling system.
4. energy-conservation solid controlling system according to claim 1, is characterized in that: described technical scheme can save a large amount of mud medicine, improves treatment effeciency, reduces drilling cost.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310618854.1A CN104675350A (en) | 2013-11-29 | 2013-11-29 | Energy-saving solid control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310618854.1A CN104675350A (en) | 2013-11-29 | 2013-11-29 | Energy-saving solid control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104675350A true CN104675350A (en) | 2015-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310618854.1A Pending CN104675350A (en) | 2013-11-29 | 2013-11-29 | Energy-saving solid control system |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156049A (en) * | 2015-08-31 | 2015-12-16 | 中国石油集团渤海石油装备制造有限公司 | Centrifuge device used for recycling barite and application method of centrifuge device |
| CN106150412A (en) * | 2016-08-31 | 2016-11-23 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | A kind of sieve two grades of solidifying and controlling devices of one machine formula |
| CN112302550A (en) * | 2020-10-30 | 2021-02-02 | 甘琳 | Drilling fluid solid phase control method and control system for deep drilling |
-
2013
- 2013-11-29 CN CN201310618854.1A patent/CN104675350A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156049A (en) * | 2015-08-31 | 2015-12-16 | 中国石油集团渤海石油装备制造有限公司 | Centrifuge device used for recycling barite and application method of centrifuge device |
| CN105156049B (en) * | 2015-08-31 | 2017-08-08 | 中国石油集团渤海石油装备制造有限公司 | A kind of centrifuge apparatus and its application method for being used to reclaim barite |
| CN106150412A (en) * | 2016-08-31 | 2016-11-23 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | A kind of sieve two grades of solidifying and controlling devices of one machine formula |
| CN112302550A (en) * | 2020-10-30 | 2021-02-02 | 甘琳 | Drilling fluid solid phase control method and control system for deep drilling |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150603 |