CN104453823A - Small sand mulling pumping device - Google Patents
Small sand mulling pumping device Download PDFInfo
- Publication number
- CN104453823A CN104453823A CN201410496528.2A CN201410496528A CN104453823A CN 104453823 A CN104453823 A CN 104453823A CN 201410496528 A CN201410496528 A CN 201410496528A CN 104453823 A CN104453823 A CN 104453823A
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- Prior art keywords
- sand
- mulling
- spiral
- small
- pump
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
- E21B43/267—Methods for stimulating production by forming crevices or fractures reinforcing fractures by propping
Abstract
The invention provides a small sand mulling pumping device which comprises a prying frame, an engine, a mechanical transmission case and a plunger pump. The engine is arranged on the prying frame in a prying mode, the plunger pump is arranged on one side of the transmission case, a sand mulling pot is arranged on one side of the plunger pump, the top end of the sand mulling pot is provided with a horizontal type spiral sand conveyer, the input end of the sand mulling pot is connected with a suction manifold, and the output end of the sand mulling pot is connected with a discharge manifold which is connected with the plunger pump. The small sand mulling pumping device further comprises a PLC control unit controlling the rotating speed of the transmission case and the rotating speed of a reel of the horizontal type spiral sand conveyer. The horizontal type spiral sand conveyer comprises a horizontal type sand conveying spiral, a sand storage device arranged at the upper end of the horizontal type sand conveying spiral, and a reel counter arranged at one end of the horizontal type sand conveying spiral. The horizontal type sand conveying spiral is perpendicular to the axial direction of the sand mulling pot. According to the small sand mulling pumping device, small-displacement sand liquid mulling is achieved through the plunger pump, low sand proportion is achieved by arranging the horizontal type spiral sand conveyer on the top of the sand mulling pot, integrated prying is carried out, small-displacement and low-sand-concentration accurate control is achieved, and it is ensured that coiled tubing manufacturing is smoothly achieved.
Description
Technical field
The invention provides a kind of small-sized mulling infusion device, be mainly used in oil, gas well coiled tubing spy makes technical field.
Background technology
In recent years, coiled tubing technology at home each elephant is generally carried out,
coiled tubingalso known as coiled tubing, sinuous coil or coil pipe, to refer to be wrapped on major diameter drum, by some sections of steel band mitereds together, through the non junction coiled tubing that roll forming is welded.This successional oil pipe with high strength, high tenacity feature, profile, just as rolled-up cable high more than two meters, can replace conventional oil pipe to carry out a lot of operation, the feature that continuous oil pipe operation equipment has Operating Pressure, removes continuously, equipment volume is little, and duty cycle is fast, and cost is low.Owing to improve automation and mobility is good, make the more safe and efficient environmental protection of operation, after being applied in petroleum industry, be widely used in multinomial oil gas field of operation at this nearest Two decades years.Coiled tubing except defeated for oil plant collection,
coiled tubingcan be widely used in the fields such as oil drilling, completion, pressure break, acidifying, discharge opeing, formation testing, oil recovery gas production, well workover, gathering line de-plugging at present, technique can be planted with more than 10 in only well workover aspect.Because applied widely, a technology is rarely had to compare favourably with it.At oil and gas industry, coiled tubing and working equipment thereof are called " omnipotent working rig " visually.Compared with traditional work,
coiled tubingduty cycle is short, accident rate is low, convenient transportation; Energy no killing well Operating Pressure, protection oil and gas reservoir; Horizontal well, directional well operation are convenient and swift; Oily intraductal operation, operation through tubing etc. can be carried out.Compared with traditional drilling well, coiled tubing drilling is improving drilling technology or is reducing costs (can save the expense of 25% ~ 40%),
directed drillingwith
under balance pressure drillingaspect is in technical advantage status.
Coiled tubing, in the spies such as jetting, down-hole cutting, the punching of horizontal well horizontal segment do, only needs low discharge capacity, low sand concentration load fluid as hydraulic fluid usually.But in current work progress at the scene, actually use the fracturing blender truck being matched in Frac unit, and fracturing blender truck due to design discharge capacity and design ompetence excessive, the mulling liquid reaching designing requirement cannot be configured accurately, therefore likely cause coiled tubing to be correlated with the special failure done.In addition, fracturing blender truck is before mixing mulling liquid, need, by sand conveying device, haydite is delivered to mixing device, and existing sand conveying device is in haydite course of conveying, haydite is carried by sediment transport spiral from low to high, in upper sand process, part haydite can not be delivered to mixing sand tank by sand deliverer due to the impact of gravity, spiral sand conveying reel is caused in use to go up sand efficiency lower, causing sediment transport amount to have certain fluctuation, there is the too low problem of upper sand efficiency in therefore conventional sand conveying device.For this reason, a kind of small-sized mulling infusion device of development is badly in need of as coiled tubing at this type of special corollary equipment done.
Summary of the invention
The invention provides a kind of small-sized mulling infusion device, solve existing Frac unit configuration fracturing blender truck design discharge capacity and design ompetence excessive, cannot configure accurately reach designing requirement small displacement, low concentration mulling liquid problem.
For this reason, the invention provides a kind of small-sized mulling infusion device, comprise pry bracket and the motor of skid in this pry bracket, the mechanical transmission case be connected with motor and the plunger displacement pump being arranged on mechanical transmission case side, the side of described plunger displacement pump is provided with mixing sand tank, and the top of mixing sand tank is provided with horizontal spiral sand deliverer;
The input of described mixing sand tank is connected with suction manifold, and output is connected with exhaust manifold, and described exhaust manifold is connected with plunger displacement pump;
Described mulling infusion device also comprises the PLC control unit controlling mechanical type transmission case rotating speed and horizontal spiral sand deliverer reel rotating speed;
Described horizontal spiral sand deliverer comprises horizontal sediment transport spiral, be arranged on the sand storing machine of horizontal sediment transport spiral upper end and be arranged on the reel counter of horizontal sediment transport spiral one end, and described horizontal sediment transport spiral is arranged perpendicular to the axis of mixing sand tank.
Described suction manifold is connected with suction pump.
Described exhaust manifold is connected with excavationg pump.
Described plunger displacement pump is also connected with coiled tubing.
Two-shipper double pump is parallel with between described mixing sand tank and coiled tubing.
Described plunger displacement pump is three-cylinder plunger pump.
Beneficial effect of the present invention: solve existing Frac unit configuration fracturing blender truck design discharge capacity and design ompetence excessive, cannot configure accurately reach designing requirement small displacement, low concentration mulling liquid problem.This mulling infusion device is vehicle-mounted small skid mounted equipment, and integrated mixing device and infusion device are also unified to be arranged in a pry bracket, the function that the mixing device of routine and fracturing device have is united two into one.Realize small displacement mulling liquid by high-pressure plunger pump, realize low sand ratio by top horizontal spiral Thread-feeding device being arranged on mixing sand tank, thus realize the accurate control of sand ratio.For job that requires special skills infusion small displacement, the low sand such as coiled tubing jetting, cutting operation, horizontal well horizontal segment drilling operation are than load fluid, to guarantee that job that requires special skills normally completes smoothly.
Below with reference to accompanying drawing, the present invention is described in further details.
Accompanying drawing explanation
Fig. 1 is the structural representation of mulling infusion device.
Fig. 2 is the schematic diagram of horizontal spiral Thread-feeding device.
Reference numeral: 1, fuel tank; 2, hydraulic fan; 3, pry bracket; 4, baric systerm; 5, hydraulic system; 6, heating system; 7, motor; 8, mechanical transmission case; 9, plunger displacement pump; 10, suction manifold; 11, mixing sand tank; 12, horizontal spiral sand deliverer; 12a, horizontal sediment transport spiral; 12b, sand storing machine; 12c, reel counter; 13, PLC control unit; 14, exhaust manifold; 15 suction pumps; 16, excavationg pump.
Detailed description of the invention
Embodiment 1:
As shown in Figure 1, a kind of small-sized mulling infusion device, comprise the support that pry bracket 3(is mulling infusion device, whole device is arranged on convenient lifting and carrying in pry bracket 3) and the motor 7 of skid in this pry bracket 3, the mechanical transmission case 8(mechanical transmission case 8 be connected with motor 7 plays the function of power transmission, simultaneously, transfer case is provided with in the junction of mechanical transmission case 8 and motor 7, distribute for power) and be arranged on the plunger displacement pump 9 of mechanical transmission case 8 side, the side of described plunger displacement pump 9 is provided with mixing sand tank 11, the top of mixing sand tank 11 is provided with horizontal spiral sand deliverer 12, the input of described mixing sand tank 11 is connected with suction manifold 10, suction manifold 10 is for being sucked into mixing sand tank 11 by liquid, output is connected with exhaust manifold 14, exhaust manifold 14 for by the Liquid transfer of mixing sand tank 11 to plunger displacement pump 9 or be delivered to outside two-shipper double pump.Described exhaust manifold 14 is connected with plunger displacement pump 9; Described mulling infusion device also comprises the PLC control unit 13 controlling mechanical type transmission case 8 rotating speed and horizontal spiral sand deliverer 12 reel rotating speed, the paxcdl10 controller that this PLC control unit 13 adopts red lion redlion to produce;
As shown in Figure 2, described horizontal spiral sand deliverer 12 comprises horizontal sediment transport spiral 12a, be arranged on the sand storing machine 12b of horizontal sediment transport spiral 12a upper end and be arranged on the reel counter 12c of horizontal sediment transport spiral 12a one end, and described horizontal sediment transport spiral 12a is arranged perpendicular to the axis of mixing sand tank 11.
Described suction manifold 10 is connected with suction pump 15, is connected with excavationg pump 16 between described exhaust manifold 14 and plunger displacement pump 9, and described plunger displacement pump 9 is connected with coiled tubing.Be parallel with two-shipper double pump between mixing sand tank 11 and coiled tubing, described two-shipper double pump is the high pressure pumping-in equipment of skid, discharge capacity and pressure-bearing higher relative to the three-cylinder plunger pump 9 of skid, plunger displacement pump 9 is three-cylinder plunger pumps.
The course of work of this device is: in mulling infusion device busy process, liquid is sucked by suction pump 15, and liquid is pumped into mixing sand tank 11 by suction manifold 10, sand is inputted mixing sand tank 11 by horizontal spiral sand deliverer 12 simultaneously, after liquid and sand mix in mixing sand tank 11, is expelled to excavationg pump 16, and by excavationg pump 16, mulling liquid pump is entered plunger displacement pump 9, then by plunger displacement pump 9, mulling liquid pump is entered coiled tubing, injected into well by coiled tubing, construct.
Fracturing blender truck is before mixing mulling liquid, need, by horizontal spiral sand deliverer 12, haydite is delivered to mixing sand tank 11, and existing screw conveyer is in haydite course of conveying, haydite is undertaken carrying in the process of upper sand by sediment transport spiral from low to high, the impact of part haydite due to gravity and the wearing and tearing of reel, sand can flow down from the space between sediment transport spiral and reel outer wall, spiral sand conveying reel is caused in use to go up sand efficiency unstable, sediment transport amount is caused to have certain fluctuation, usually in the course of conveying of little sand ratio, the reel rotating speed of conventional sediment transport reel can not be greater than 10 turns, now due to the impact of sediment transport efficiency, the fluctuation that sand is larger than there will be, can not stablize, even when on reel service time is longer, sand efficiency is lower, sand just cannot be delivered to mixing sand tank 11.In order to avoid the generation of the problems referred to above, horizontal spiral sand deliverer 12 adopts horizontal spiral sand deliverer 12, and horizontal spiral horizontal spiral sand deliverer 12 is arranged on the top of mixing sand tank 11, concrete operating process is as follows:
Realize the accurate control of low sand ratio: in work progress, be placed on by haydite in sand storing machine 12b in advance, the sand amount needed for coiled tubing spy does in process is less, and the volume therefore designing sand storing machine 12b is 3.0m
3.Haydite is transported to mixing sand tank 11 by horizontal sediment transport spiral 12a by haydite, and reel counter 12c is used for sediment transport reel rotating speed is carried out to Real-Time Monitoring and is uploaded to control instrument.Because horizontal sediment transport spiral 12a places perpendicular to the axis of mixing sand tank 11, and sand storing machine 12b is arranged on the top of horizontal sediment transport spiral 12a, therefore in work progress, avoid conventional fracturing blender truck spiral sand conveying reel in haydite course of conveying, haydite to be carried by sediment transport spiral from low to high, in the upper sand process caused, part haydite can not be delivered to mixing sand tank 11 by sand deliverer due to the impact of gravity, the inefficient problem of upper sand causing spiral sand conveying reel in use to exist, each transfers the stable and sediment transport spiral inefficiency loss of the sand amount sent can to ensure sediment transport spiral, and then realize the accurate control of small displacement low sand ratio.In the present invention, realize the little sand of low discharge capacity than accurately controlling, reel sediment transport efficiency must be made to reach 100%, therefore horizontal spiral sand deliverer is adopted, the sand amount that each turn of sediment transport reel is carried is all a definite value, is particularly controlled the reel rotating speed of horizontal spiral sand deliverer by PLC control unit 13 to control the amount of transport of sand, and then controls the height of sand concentration, therefore can realize the accurate control of little sand ratio, reel can be made to reach the effect of stable sediment transport.
Realize the accurate control of small displacement: by equipment such as motor 7, mechanical transmission case 8, plunger displacement pumps 9, specific implementation process provides power by motor 7, then by mechanical transmission case 8 by power transmission to plunger displacement pump 9, then have plunger displacement pump 9 to be expelled to coiled tubing, drain into shaft bottom by coiled tubing.PLC control unit 13 controls by the rotating speed controlling mechanical type transmission case 8 power passing to plunger displacement pump 9, thus controls the output discharge capacity of plunger displacement pump 9.
This device adopts three-cylinder plunger pump, and this pump is existing product (STP600 type plunger displacement pump 9), is achieved the accurate control of 50-500L/min small displacement, solves conventional mulling, fracturing unit discharge capacity is less than 1m by said apparatus
3during/min, the inaccurate problem of discharge capacity, mainly completes the work of high pressure infusion.During operation, mixing sand tank 11 sucks liquid by suction pump 15 liquid self-feeding (car) tank, by horizontal spiral sand deliverer 12, sand is inputted mixing sand tank 11, in mixing sand tank 11 after mix and blend, deliver to plunger displacement pump 9 intake through low-pressure manifold, plunger displacement pump 9 is injected into shaft bottom through coiled tubing after being pressurizeed by mixed liquor and carries out the jobs that requires special skills such as jetting, cutting operation, horizontal well horizontal segment drilling operation.
Compared with traditional hydraulic drive case, the present invention adopts mechanical transmission case 8.Fluid pressure type transmission case in the course of the work, must operate at blocking, and namely motor 7 rotating speed must be over 1650 revs/min, once run at not blocking, and can be too high and burn fluid pressure type transmission case due to temperature in the short time.Then there is not problems in mechanical transmission case 8.Following table is the table of comparisons of plunger displacement pump 9 transmission case rotating speed and discharge capacity when 1-3 shelves, and for this pump, as used fluid pressure type transmission case, this pump can not be operated in below discharge capacity 62L/min, and meanwhile, discharge capacity can not reach 70-80L/min, 90-103L/min.And adopt mechanical gearbox, then can ensure that discharge capacity normally works at the range devices of 50-120L/min.
The table of comparisons of table one plunger displacement pump transmission case rotating speed and discharge capacity when 1-3 shelves
Fracturing device skid integrated with mixing device, on mulling infusion device, completes mulling and infusion work by an equipment, decreases the use of fracturing blender truck, pressure break pump truck compared with conventional operation, reduces hold facility rate.When operational discharge capacity is less than 350 L/min, without the need to external equipment, this small-sized mulling infusion device directly for coiled tubing carries out supporting, can avoid in conventional continuous oil pipe operation and needs the multiple vehicles such as pressure break pump truck, fracturing blender truck to carry out situation about coordinating; When operational discharge capacity is greater than 350L/min, the liquid mixed in mixing sand tank 11 carries out construction operation by two-shipper double pump supply coiled tubing.
This mulling infusion device also comprises:
1) for whole device provides the fuel tank 1 of diesel oil;
2) be the temperature in reduction motor 7 course of work, the hydraulic fan 2 playing cooling effect;
3) for device provides aerodynamic force, the baric systerm 4 of the lubrication work of three-cylinder plunger pump 9 is mainly completed;
4) for device provides hydraulic power, comprise for the devices such as agitator in hydraulic faucet, mixing sand tank 11 on exhaust manifold 14 provide the hydraulic system 5 of hydraulic power;
5) complete under cryogenic to the preheating in advance of the equipment such as motor 7, transmission case, plunger displacement pump 9 and lubricating system, facilitate the heating system 6 of the startup of mulling infusion device.Heating system 6 is heaters that existing mixing device carries, and is not described in detail here.
Sand conveying device in the present invention adopts spiral sand conveying device, can realize the accurate control to sand ratio.Design two-way to export, when operational discharge capacity is less than 350L/min, can be coiled tubing feed flow separately by the three-cylinder plunger pump 9 of skid simultaneously; When operational discharge capacity is greater than 350L/min, can external two-shipper double pump be coiled tubing feed flow simultaneously.
More than exemplifying is only illustrate of the present invention, does not form the restriction to protection scope of the present invention, everyly all belongs within protection scope of the present invention with the same or analogous design of the present invention.
Claims (6)
1. a small-sized mulling infusion device, it is characterized in that, comprise pry bracket (1) and the motor (7) of skid in this pry bracket (1), the mechanical transmission case (8) be connected with motor (7) and the plunger displacement pump (9) being arranged on mechanical transmission case (8) side, the side of described plunger displacement pump (9) is provided with mixing sand tank (11), and the top of mixing sand tank (11) is provided with horizontal spiral sand deliverer (12);
The input of described mixing sand tank (11) is connected with suction manifold (10), and output is connected with exhaust manifold (14), and described exhaust manifold (14) is connected with plunger displacement pump (9);
Described mulling infusion device also comprises the PLC control unit (13) controlling mechanical type transmission case (8) rotating speed and horizontal spiral sand deliverer (12) reel rotating speed;
Described horizontal spiral sand deliverer (12) comprises horizontal sediment transport spiral (12a), be arranged on the sand storing machine (12b) of horizontal sediment transport spiral (12a) upper end and be arranged on the reel counter (12c) of horizontal sediment transport spiral (12a) one end, and described horizontal sediment transport spiral (12a) is arranged perpendicular to the axis of mixing sand tank (11).
2. a kind of small-sized mulling infusion device as claimed in claim 1, it is characterized in that, described suction manifold (10) is connected with suction pump (15).
3. a kind of small-sized mulling infusion device as claimed in claim 1, it is characterized in that, described exhaust manifold (14) is connected with excavationg pump (16).
4. a kind of small-sized mulling infusion device as claimed in claim 1, it is characterized in that, described plunger displacement pump (9) is also connected with coiled tubing.
5. the small-sized mulling infusion of the one as described in claim 1 or 4 device, is characterized in that, is parallel with two-shipper double pump between described mixing sand tank (11) and coiled tubing.
6. a kind of small-sized mulling infusion device as claimed in claim 1, it is characterized in that, described plunger displacement pump (9) is three-cylinder plunger pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410496528.2A CN104453823B (en) | 2014-09-25 | 2014-09-25 | Small sand mulling pumping device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410496528.2A CN104453823B (en) | 2014-09-25 | 2014-09-25 | Small sand mulling pumping device |
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| CN104453823A true CN104453823A (en) | 2015-03-25 |
| CN104453823B CN104453823B (en) | 2017-05-10 |
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| CN201410496528.2A Active CN104453823B (en) | 2014-09-25 | 2014-09-25 | Small sand mulling pumping device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106089159A (en) * | 2016-08-17 | 2016-11-09 | 中石化石油工程机械有限公司第四机械厂 | One is integrated adds sand mixing pressurization pump truck |
| CN106089175A (en) * | 2016-08-17 | 2016-11-09 | 中石化石油工程机械有限公司第四机械厂 | A kind of discharge capacity self adaptation mixing device and control method |
| CN106640024A (en) * | 2017-01-12 | 2017-05-10 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Closed sand mixing device and method |
| CN108266172A (en) * | 2018-03-26 | 2018-07-10 | 湖北中油科昊机械制造有限公司 | A kind of liquid carbon dioxide conveys DWHSQ-12 type outfits |
| CN111894543A (en) * | 2020-07-16 | 2020-11-06 | 中国石油天然气股份有限公司 | Liquid carbon dioxide anhydrous fracturing normal-pressure sand adding method and device |
| CN112483061A (en) * | 2019-09-12 | 2021-03-12 | 中国石油天然气股份有限公司 | Fracturing construction system and fracturing construction heat preservation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089159A (en) * | 2016-08-17 | 2016-11-09 | 中石化石油工程机械有限公司第四机械厂 | One is integrated adds sand mixing pressurization pump truck |
| CN106089175A (en) * | 2016-08-17 | 2016-11-09 | 中石化石油工程机械有限公司第四机械厂 | A kind of discharge capacity self adaptation mixing device and control method |
| CN106640024A (en) * | 2017-01-12 | 2017-05-10 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Closed sand mixing device and method |
| CN106640024B (en) * | 2017-01-12 | 2023-03-10 | 中国石油天然气集团有限公司 | Closed sand mixing device and method |
| CN108266172A (en) * | 2018-03-26 | 2018-07-10 | 湖北中油科昊机械制造有限公司 | A kind of liquid carbon dioxide conveys DWHSQ-12 type outfits |
| CN112483061A (en) * | 2019-09-12 | 2021-03-12 | 中国石油天然气股份有限公司 | Fracturing construction system and fracturing construction heat preservation method |
| CN111894543A (en) * | 2020-07-16 | 2020-11-06 | 中国石油天然气股份有限公司 | Liquid carbon dioxide anhydrous fracturing normal-pressure sand adding method and device |
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|---|---|
| CN104453823B (en) | 2017-05-10 |
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