WO2021146846A1 - 一种新型超大排量超高压力固井设备 - Google Patents

一种新型超大排量超高压力固井设备 Download PDF

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Publication number
WO2021146846A1
WO2021146846A1 PCT/CN2020/073253 CN2020073253W WO2021146846A1 WO 2021146846 A1 WO2021146846 A1 WO 2021146846A1 CN 2020073253 W CN2020073253 W CN 2020073253W WO 2021146846 A1 WO2021146846 A1 WO 2021146846A1
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WIPO (PCT)
Prior art keywords
inlet
outlet
pump
mixer
mixing
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PCT/CN2020/073253
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English (en)
French (fr)
Inventor
王彦峰
邹力抚
张树立
李恩杰
刘仁
吴张晔
马灯刚
于晓刚
袁寅龙
王金
梁虎
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烟台杰瑞石油装备技术有限公司
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Application filed by 烟台杰瑞石油装备技术有限公司 filed Critical 烟台杰瑞石油装备技术有限公司
Priority to PCT/CN2020/073253 priority Critical patent/WO2021146846A1/zh
Publication of WO2021146846A1 publication Critical patent/WO2021146846A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
    • 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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like

Definitions

  • the invention relates to the field of petroleum equipment, in particular to a new type of ultra-large displacement and ultra-high pressure cementing equipment.
  • the purpose of the present invention overcomes the shortcomings of the prior art and provides a new type of ultra-large displacement and ultra-high pressure cementing equipment.
  • the use of a five-cylinder plunger pump improves the pressure and displacement of the cementing equipment and meets the requirements of high pressure and large displacement.
  • a new type of super large displacement super high pressure cementing equipment including a loading body, the loading body is installed with a hydraulic system, a power transmission system, a metering tank, an electrical system, a gas Road system, control system, operating platform, plunger pump, clean water manifold, mud manifold, high pressure manifold, mixing system and upper ash manifold, the plunger pump is a five-cylinder plunger pump.
  • the rated power of the five-cylinder plunger pump is greater than or equal to 1000 hp.
  • the mixing system further includes a mixing tank, a first centrifugal pump, a second centrifugal pump, a density meter, a first valve, a second valve, a first mixer, and a second mixer, and the mixing tank is provided with There are two inlets which are respectively connected to the outlet of the first mixer and the outlet of the second mixer.
  • the mixing tank is provided with two outlets, one of which is connected to the inlet of the first centrifugal pump.
  • the outlet of a centrifugal pump is divided into 3 ways, the first way is connected with the inlet of the first mixer, the second way is connected with the inlet of the density meter, and the outlet of the density meter is connected with the inlet of the second mixer ,
  • the third way is connected with the inlet of the first valve, the outlet of the first valve is connected with the inlet of the plunger pump; the other outlet is connected with the inlet of the second centrifugal pump, the second centrifugal pump
  • the outlet of the pump is divided into 2 paths, one of which is connected to the inlet of the second mixer, the other is connected to the inlet of the second valve, and the outlet of the second valve is connected to the inlet of the plunger pump.
  • the cementing equipment further includes a first external mud pipeline and a second external mud pipeline, the first external mud pipeline is connected to the inlet end of the first centrifugal pump, and the second external mud pipeline is connected to the second external mud pipeline. The inlet end of the centrifugal pump.
  • the mixing tank is also provided with a sewage outlet.
  • the clean water manifold includes a first jet pump and a second jet pump, the inlet of the metering tank is connected with an external clean water pipeline, the outlet of the metering tank is divided into 3 paths, and the first path is connected to the plunger pump.
  • the inlet is connected; the second way is connected with the inlet of the first jet pump, the outlet of the first jet pump is connected with the inlet of the first mixer; the third way is connected with the inlet of the second jet pump , The outlet of the second jet pump is connected with the inlet of the second mixer.
  • outlet of the first jet pump and the outlet of the second jet pump are connected through a third valve.
  • the external clean water pipeline is divided into 2 routes, one of which is connected to the inlet of the metering tank, and the other is connected to the inlet of the second mixer or the inlet of the first mixer.
  • the loading body is a vehicle-mounted chassis, a semi-trailer chassis, or a skid-mounted chassis.
  • the new type of ultra-large displacement and ultra-high pressure cementing equipment adopts a five-cylinder plunger pump to increase the pressure and displacement of the cementing equipment and meet the requirements of high pressure and large displacement.
  • the need for mixing double mixers are used for mixing to increase mixing efficiency, improve the stability of mixing density, and ensure long-term uninterrupted operation requirements; optimize mixing system pipelines, and integrate multiple mixing systems into one mixing tank , Improve the stability of the equipment; optimize the clean water manifold, realize that one jet pump can also meet the water supply demand of multiple mixers at the same time, and meet the demand for large displacement.
  • Figure 1 is a front view of the new type of ultra-large displacement and ultra-high pressure cementing equipment.
  • Figure 2 is a schematic diagram of the structure of the new ultra-large displacement and ultra-high pressure cementing equipment.
  • Figure 3 is a process flow diagram of the mixing process.
  • a new type of super large displacement and super high pressure cementing equipment including loading body 1, hydraulic system 2, power transmission system 3, metering tank 4, electrical system 8, gas circuit system 6, control system 7.
  • the operating platform 13, the mixing system 10 are sequentially installed on the loading body 1, the electrical system 8 is used to supply power to the electrical components on the cementing equipment, the gas circuit system 6 and the control system 7 are sequentially installed in
  • the bottom of the metering tank 4 is connected to the inlet of the clean water manifold 15, and the outlet of the clean water manifold 15 is respectively connected to the inlet of the mixing system 10 and the plunger pump 14.
  • the plunger pump 14 Located below the operating platform 13, the inlet of the plunger pump 14 is also connected to the mud manifold 12, and the mud manifold 12 is used to transport the mud mixed by the mixing system 10 to the plunger pump 14.
  • the outlet of the plunger pump 14 is connected to the high-pressure manifold 9, the upper ash manifold 11 is used to supply ash to the mixing system 10, and the plunger pump 14 is a five-cylinder plunger pump.
  • the rated power of the five-cylinder plunger pump is ⁇ 1000hp.
  • the five-cylinder plunger pump with a rated power of 1000hp can achieve a pressure of 65MPa, which improves the pressure and displacement of cementing equipment and meets the needs of high pressure and large displacement.
  • the new type ultra-large displacement ultra-high pressure cementing equipment also includes a lubrication system, and the lubrication system consists of a power end lubrication system 16 and a packing lubrication system 5.
  • the present invention includes the following system assemblies:
  • Power Transmission System 3 Including engine, gearbox, drive shaft, support base, intake system, exhaust system, cooling system, fuel system, etc.
  • the power transmission system 3 serves as the power source of the equipment and provides power for the working parts on the equipment.
  • the power supply is completed by the battery. Start the engine and know that the generator that comes with the engine will charge the battery.
  • the voltage of all electrical equipment on the equipment is 24VDC.
  • Hydraulic system 2 Pneumatic system 6: Mainly include hydraulic pumps, hydraulic motors, hydraulic oil tanks, hydraulic valves, lubricating gear pumps, dryers, gas cylinders, etc., to provide power for pneumatic heads, lubrication and other equipment to ensure normal operation of the equipment.
  • Control system 7 The control system 7 is connected to a remote control system.
  • the control system 7 is centrally installed with main control components and display components of the power transmission system 3, the hybrid system 10, etc., which are the main operations of the equipment during operation place.
  • the remote control system includes a remote control box, a pan/tilt, a data acquisition system, a notebook computer, etc.
  • the remote control system can keep the operator away from the operating environment, and operate the cementing equipment at a distance away from noise and high-pressure areas. Observe the operation on the cementing equipment through the camera from a distance, so that the operator is immersed in the scene and achieves what you see is what you get.
  • the plunger pump 14 system mainly obtains different pressures and displacements required by customers by changing the diameter of the plunger to meet customer requirements.
  • High-pressure manifold 9 It mainly realizes the functions of connecting the plunger pump 14 and various plug valves, extending the discharge port to a suitable position, and facilitating external wellsite, pressure measurement, manifold switch control, pressure relief, and overpressure protection.
  • the mixing system 10 includes a mixer, and there are two mixers, a first mixer 18 and a second mixer 19 respectively.
  • the mixing system 10 is mainly used for the mixing of mud, using dual mixers for mixing, increasing mixing efficiency, improving the stability of the mixing density, and ensuring long-term uninterrupted operation requirements.
  • the mixing system 10 also includes a mixing tank 17, a first centrifugal pump 20, a second centrifugal pump 21, a density meter 27, a first valve 26, and a second valve 22.
  • the mixing tank 17 is provided with two inlets and They are respectively connected to the outlet of the first mixer 18 and the outlet of the second mixer 19.
  • the inlet of the first mixer 18 and the inlet of the second mixer 19 are respectively connected to the upper ash manifold 11.
  • the mixing tank 17 is provided with two outlets, one of which is connected to the inlet of the first centrifugal pump 20, and the outlet of the first centrifugal pump 20 is divided into three paths.
  • the inlet of the device 18 is connected, the second path is connected to the inlet of the density meter 27, and the outlet of the density meter 27 is connected to the inlet of the second mixer 19 or the inlet of the first mixer 18. More preferably, the density The outlet of the meter 27 is connected to the inlet of the second mixer 19.
  • the third path is connected to the inlet of the first valve 26, the outlet of the first valve 26 is connected to the inlet of the plunger pump 14; the other outlet is connected to the inlet of the second centrifugal pump 21, the The outlet of the second centrifugal pump 21 is divided into 2 paths, one of which is connected to the inlet of the second mixer 19, and the other is connected to the inlet of the second valve 22, and the outlet of the second valve 22 is connected to the column
  • the inlet of the plug pump 14 is connected.
  • the pipeline of the mixing system 10 is optimized, and multiple sets of mixing systems 10 are integrated on a mixing tank 17 to improve the stability of the equipment.
  • the cementing equipment also includes a first external mud pipeline and a second external mud pipeline, the first external mud pipeline is connected to the inlet end of the first centrifugal pump 20, and the second external mud pipeline is connected to the second centrifugal pump 21 on the inlet side.
  • the mixing tank 17 fails or according to site operation requirements, the mixed mud can be directly delivered from the first centrifugal pump and the second centrifugal pump to the plunger pump 14 through the external mud pipeline for cementing operation.
  • the mixing tank 17 is also provided with a sewage outlet. After the cementing operation is completed, the mixing tank 17 needs to be flushed, and the sewage outlet is used to discharge the cleaning sewage.
  • the clean water manifold 15 includes a first jet pump 23 and a second jet pump 24, the inlet of the metering tank 4 is connected to an external clean water pipeline, and the outlet of the metering tank 4 is divided into 3 paths, and the first path is connected to the column.
  • the inlet of the plug pump 14 is connected; the second way is connected to the inlet of the first jet pump 23, and the outlet of the first jet pump 23 is connected to the inlet of the first mixer 18; the third way is connected to the first The inlet of the second jet pump 24 is connected, and the outlet of the second jet pump 24 is connected with the inlet of the second mixer 19. Further preferably, the outlet of the first jet pump 23 and the outlet of the second jet pump 24 are connected through a third valve 25.
  • the first jet pump 23 and the second jet pump 24 can provide clean water to the mixing system 10 at the same time, or can supply water to the mixing system 10 separately. Optimize the clean water manifold 15 to realize that one jet pump can also meet the water supply demand of multiple mixers at the same time and meet the demand for large displacement.
  • the external clean water pipeline is divided into 2 routes, one of which is connected to the inlet of the metering tank 4 and the other is connected to the inlet of the second mixer 19 or the inlet of the first mixer 18. After the cementing operation is completed, clean water can be directly connected to the mixing system 10 for cleaning.
  • the loading body 1 is a vehicle-mounted chassis, a semi-trailer chassis, or a skid-mounted chassis.
  • the cementing equipment is started, the clean water pipeline is connected to the metering tank 4, and the valve on the pipeline between the metering tank 4 and the plunger pump 14 is closed, and the metering tank 4 and the first jet pump 23 and the second jet pump 24 are opened.
  • the third valve 25 is closed.
  • the first jet pump 23 and the second jet pump 24 respectively inject clean water into the first mixer 28 and the second mixer 29, while the upper ash manifold 11 is mixed to the first mixer respectively.
  • the cleaner 28 and the second mixer 29 spray ash, and the clean water and ash are mixed in the first mixer 28 and the second mixer 29 and then enter the mixing tank 17.
  • the sewage outlet of the mixing tank 17 is closed, the first valve 26 and the second valve 22 are closed, part of the mixed slurry in the mixing tank 17 is sent to the densitometer 27 after the first centrifugal pump 20, and the density of the mixing is measured. After monitoring, it returns to the second mixer 19.
  • the first valve 26 and the second valve 22 are opened, and the mixed slurry flows from the mixing tank 17 through the first centrifugal pump 20 and the second centrifugal pump 21 is transported to the plunger pump 14, and the plunger pump 14 performs the grouting operation; if the mixing density does not meet the cementing demand, the mixed slurry is returned to the first mixer through the first centrifugal pump 20 and the second centrifugal pump 21 18 and the second mixer 19 perform cyclic mixing operation until the mixing density meets the cementing demand.
  • the valve on the pipeline connecting the metering tank 4 and the plunger pump 14 can be opened, and the plunger pump 14 can be cleaned by water injection.
  • an external clean water pipeline directly injects clean water into the first mixer 18 or the second mixer 19, and enters the mixing tank 17 through the first mixer 18 or the second mixer 19, and the mixing tank 17 is cleaned.
  • the sewage outlet of the mixing tank 17 is opened, and the cleaning sewage is discharged out of the mixing tank 17.
  • the first jet pump 23 or the second jet pump 24 fails, or according to the cementing demand, the first jet pump 23 or the second jet pump 24 can be closed, and the third valve 25 can be opened.
  • the jet pump simultaneously supplies water to the first mixer 18 and the second mixer 19 to meet the mixing requirements. If during actual operation, the water supply of the metering tank 4 cannot meet the mixing requirements, an external clean water pipeline can be used to directly supply supplementary water to the mixing system 10.
  • the first external mud pipeline and/or the second external mud pipeline can be used for supplementary slurry supply or the second external mud pipeline can be used directly.
  • An external mud pipeline and/or a second external mud pipeline provide slurry.

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Abstract

一种超大排量超高压力固井设备，包括装载体（1），装载体（1）上安装有液压系统（2）、动力传动系统（3）、计量罐（4）、电气系统（8）、气路系统（6）、操控系统（7）、操作平台（13）、柱塞泵（14）、清水管汇（15）、泥浆管汇（12）、高压管汇（9）、混合系统（10）和上灰管汇（11），柱塞泵（14）为五缸柱塞泵。采用五缸柱塞泵提高了固井设备的压力和排量，满足高压力、大排量的需求；采用双混合器进行混浆，增大混合效率，提高混浆密度的稳定性，保证长时间不间断作业需求；优化混合系统（10）管路，将多套混合系统（10）集成在一个混浆罐（17）上，提高设备的稳定性；优化清水管汇（15），实现一台喷射泵亦可同时满足多个混合器供水需求，满足大排量的需求。

Description

一种新型超大排量超高压力固井设备 技术领域
本发明涉及石油装备领域，具体涉及一种新型超大排量超高压力固井设备。
背景技术
超深井及复杂地层固井作业出现的频次越来越高，开采难度也越来越大，高压力、大排量、长时间不间断作业等难题是开采面临的几大挑战。目前现有的较大排量和较高压力的固井设备柱塞泵采用600hp，可实现45Mpa压力，但仍难满足目前出现的超深井油气开采的排量和压力要求。且目前已有的单机单泵固井车、双机双泵固井车、千型泵固井车由于功率和排量的限制都无法单独满足作业要求，为了满足超大排量作业需求，需要使用多台固井车同时进行作业，占地空间大、管线连接复杂、作业成本极高。
发明内容
本发明的目的克服现有技术的不足，提供一种新型超大排量超高压力固井设备，采用五缸柱塞泵提高了固井设备的压力和排量，满足高压力、大排量的需求；采用双混合器进行混浆，增大混合效率，提高混浆密度的稳定性，保证长时间不间断作业需求；优化混合系统管路，将多套混合系统集成在一个混浆罐上，提高设备的稳定性；优化清水管汇，实现一台喷射泵亦可同时满足多个混合器供水需求，满足大排量的需求。
本发明的目的是通过以下技术措施达到的：一种新型超大排量超高压力固井设备，包括装载体，所述装载体上安装有液压系统、动力传动系统、计 量罐、电气系统、气路系统、操控系统、操作平台、柱塞泵、清水管汇、泥浆管汇、高压管汇、混合系统和上灰管汇，所述柱塞泵为五缸柱塞泵。
进一步地，所述五缸柱塞泵的额定功率≥1000hp。
进一步地，所述混合系统还包括混浆罐、第一离心泵、第二离心泵、密度计、第一阀门、第二阀门、第一混合器和第二混合器，所述混浆罐设有2个进口并分别与第一混合器的出口和第二混合器的出口连接，所述混浆罐设有2个出口，其中一个出口与所述第一离心泵的进口连接，所述第一离心泵的出口分为3路，第一路与所述第一混合器的进口连接，第二路与所述密度计进口连接，所述密度计出口与所述第二混合器的进口连接，第三路与所述第一阀门的进口连接，所述第一阀门的出口与所述柱塞泵的进口连接；另一个出口与所述第二离心泵的进口连接，所述第二离心泵的出口分2路，其中一路与所述第二混合器的进口连接，另一路与所述第二阀门的进口连接，所述第二阀门的出口与所述柱塞泵的进口连接。
进一步地，所述固井设备还包括第一外接泥浆管线和第二外接泥浆管线，所述第一外接泥浆管线接入第一离心泵的进口端，所述第二外接泥浆管线接入第二离心泵的进口端。
进一步地，所述混浆罐还设有排污出口。
进一步地，所述清水管汇包括第一喷射泵和第二喷射泵，所述计量罐的进口连接有外接清水管线，所述计量罐的出口分3路，第一路与所述柱塞泵的进口连接；第二路与所述第一喷射泵的进口连接，所述第一喷射泵的出口与所述第一混合器的进口连接；第三路与所述第二喷射泵的进口连接，所述第二喷射泵的出口与所述第二混合器的进口连接。
进一步地，所述第一喷射泵的出口与所述第二喷射泵的出口通过第三阀门连接。
进一步地，所述外接清水管线分2路，其中一路与所述计量罐的进口连接，另一路与所述第二混合器的进口或第一混合器的进口连接。
进一步地，所述装载体为车载底盘或半挂车底盘或橇装底盘。
与现有技术相比，本发明的有益效果是：本新型超大排量超高压力固井设备，采用五缸柱塞泵提高了固井设备的压力和排量，满足高压力、大排量的需求；采用双混合器进行混浆，增大混合效率，提高混浆密度的稳定性，保证长时间不间断作业需求；优化混合系统管路，将多套混合系统集成在一个混浆罐上，提高设备的稳定性；优化清水管汇，实现一台喷射泵亦可同时满足多个混合器供水需求，满足大排量的需求。
下面结合附图和具体实施方式对本发明作详细说明。
附图说明
图1是本新型超大排量超高压力固井设备的主视图。
图2是本新型超大排量超高压力固井设备的结构示意图。
图3是混浆过程的工艺流程图。
其中，1.装载体，2.液压系统，3.动力传动系统，4.计量罐，5.盘根润滑系统，6.气路系统，7.操控系统，8.电气系统，9.高压管汇，10.混合系统，11.上灰管汇，12泥浆管汇，13.操作平台，14.柱塞泵，15.清水管汇，16.动力端润滑系统，17.混浆罐，18.第一混合器，19.第二混合器，20.第一离心泵，21.第二离心泵，22.第二阀门，23.第一喷射泵，24.第二喷射泵，25.第三阀门，26.第一阀门，27.密度计。
具体实施方式
如图1至3所示，一种新型超大排量超高压力固井设备，包括装载体1、液压系统2、动力传动系统3、计量罐4、电气系统8、气路系统6、操控系统7、操作平台13、柱塞泵14、清水管汇15、泥浆管汇12、高压管汇9、混合系统10和上灰管汇11，所述液压系统2、动力传动系统3、计量罐4、操作平台13、混合系统10依次顺序安装在装载体1上，所述电气系统8用于为所述固井设备上的电气元件供电，所述气路系统6和操控系统7依次顺序设在操作平台13上，所述计量罐4底部与所述清水管汇15进口连接，所述清水管汇15出口分别与所述混合系统10和柱塞泵14的进口连接，所述柱塞泵14位于所述操作平台13下方，所述柱塞泵14的进口还与所述泥浆管汇12连接，所述泥浆管汇12用于将所述混合系统10混合的泥浆输送至所述柱塞泵14，所述柱塞泵14的出口与所述高压管汇9连接，所述上灰管汇11用于为所述混合系统10供灰，所述柱塞泵14为五缸柱塞泵。进一步优选，所述五缸柱塞泵的额定功率≥1000hp。额定功率为1000hp的五缸柱塞泵可实现65MPa的压力，提高了固井设备的压力和排量，满足高压力、大排量的需求。所述新型超大排量超高压力固井设备还包括润滑系统，所述润滑系统由动力端润滑系统16和盘根润滑系统5。
本发明包括以下系统总成：
动力传动系统3：包括发动机、变速箱、传动轴、支撑底座、进气系统、排气系统、冷却系统、燃油系统等。动力传动系统3作为设备动力源，为设备上的工作部件提供动力。
电气系统8主要作用：
(1)控制发动机启动；
(2)给控制混合系统10；
(3)给电器元件供电，确保作业时各指示灯显示，如触摸屏、仪表、闭锁指示灯、超压指示灯等；
(4)给所有照明灯供电，以保证设备在夜间作业；
(5)电源供电由电瓶完成。启动发动机知乎发动机自带的发电机会给电瓶充电。设备上所有电器设备的电压均为24VDC。
液压系统2、气路系统6：主要包含液压泵、液压马达、液压油箱、液压阀件、润滑齿轮泵、干燥器、气瓶等，为气动头、润滑等设备提供动力，保证设备正常工作。
操控系统7：所述操控系统7与远程控制系统连接，所述操控系统7上集中安装有动力传动系统3、混合系统10等的主要控制部件和显示部件等，是设备进行作业时的主要操作场所。所述远程控制系统包括远程控制箱、云台、数据采集系统、笔记本电脑等，远程控制系统可使操作手远离操作的作业环境，在远处操作固井设备，远离噪音及高压区，可在远处通过摄像头观察固井设备上的作业情况，使操作手身临其境，达到所见即所得的操作体验。
柱塞泵14系统：柱塞泵14系统主要通过变化柱塞直径获取客户需求的不同压力和排量，满足客户要求。
高压管汇9：主要实现连接柱塞泵14及各个旋塞阀，将排出口延伸到合适的位置，便于外接井场，压力测量、管汇开关控制、泄压、超压保护等功能。
所述混合系统10包括混合器，所述混合器为2个，分别为第一混合器18 和第二混合器19。混合系统10主要用于泥浆的混配，采用双混合器进行混浆，增大混合效率，提高混浆密度的稳定性，保证长时间不间断作业需求。
所述混合系统10还包括混浆罐17、第一离心泵20、第二离心泵21、密度计27、第一阀门26和第二阀门22，所述混浆罐17设有2个进口并分别与第一混合器18的出口和第二混合器19的出口连接。所述第一混合器18的进口和第二混合器19的进口分别与上灰管汇11连接。所述混浆罐17设有2个出口，其中一个出口与所述第一离心泵20的进口连接，所述第一离心泵20的出口分为3路，第一路与所述第一混合器18的进口连接，第二路与所述密度计27进口连接，所述密度计27出口与所述第二混合器19的进口或第一混合器18的进口连接，进一步优选，所述密度计27出口与所述第二混合器19的进口连接。第三路与所述第一阀门26的进口连接，所述第一阀门26的出口与所述柱塞泵14的进口连接；另一个出口与所述第二离心泵21的进口连接，所述第二离心泵21的出口分2路，其中一路与所述第二混合器19的进口连接，另一路与所述第二阀门22的进口连接，所述第二阀门22的出口与所述柱塞泵14的进口连接。优化混合系统10管路，将多套混合系统10集成在一个混浆罐17上，提高设备的稳定性。
所述固井设备还包括第一外接泥浆管线和第二外接泥浆管线，所述第一外接泥浆管线接入第一离心泵20的进口端，所述第二外接泥浆管线接入第二离心泵21的进口端。当混浆罐17故障时或根据现场作业需求，可直接由外接泥浆管线将混配好的泥浆直接由第一离心泵和第二离心泵输送至柱塞泵14进行固井操作。
所述混浆罐17还设有排污出口。固井操作完成后，需要对混浆罐17进 行冲洗，排污口用于排出清洗污水。
所述清水管汇15包括第一喷射泵23和第二喷射泵24，所述计量罐4的进口与外接清水管线连接，所述计量罐4的出口分3路，第一路与所述柱塞泵14的进口连接；第二路与所述第一喷射泵23的进口连接，所述第一喷射泵23的出口与所述第一混合器18的进口连接；第三路与所述第二喷射泵24的进口连接，所述第二喷射泵24的出口与所述第二混合器19的进口连接。进一步优选，所述第一喷射泵23的出口与所述第二喷射泵24的出口通过第三阀门25连接。第一喷射泵23和第二喷射泵24既可同时为混合系统10提供清水，也可单独为混合系统10供水。优化清水管汇15，实现一台喷射泵亦可同时满足多个混合器供水需求，满足大排量的需求。
外接清水管线分2路，其中一路与所述计量罐4的进口连接，另一路与所述第二混合器19的进口或第一混合器18的进口连接。固井操作完成后，可以直接外接清水对混合系统10进行清洗。
所述装载体1为车载底盘或半挂车底盘或橇装底盘。
混浆过程工作原理：
启动固井设备，外接清水管线向计量罐4通入清水，同时关闭计量罐4与柱塞泵14之间管线上的阀门，打开计量罐4与第一喷射泵23和第二喷射泵24之间的阀门，关闭第三阀门25，第一喷射泵23和第二喷射泵24分别将清水喷射到第一混合器28和第二混合器29内，同时上灰管汇11分别向第一混合器28和第二混合器29喷灰，清水和灰分别在第一混合器28和第二混合器29内混合后进入混浆罐17。此时，关闭混浆罐17排污出口，关闭第一阀门26和第二阀门22，混浆罐17内的部分混浆经第一离心泵20后被输送至密 度计27，对混浆密度进行监测后又返回到第二混合器19，若混浆密度满足固井需求，则打开第一阀门26和第二阀门22，混浆由混浆罐17经第一离心泵20和第二离心泵21输送至柱塞泵14，并由柱塞泵14进行注浆操作；若混浆密度不满足固井需求，则混浆经第一离心泵20和第二离心泵21返回至第一混合器18和第二混合器19进行循环混合操作，直至混浆密度满足固井需求。当注浆操作完成时，可打开计量罐4与柱塞泵14连接管线上的阀门，对柱塞泵14进行注水清洗。同时外接清水管线将清水直接注入第一混合器18或第二混合器19，并经第一混合器18或第二混合器19进入混浆罐17内，对混浆罐17进行清洗，此时打开混浆罐17的排污出口，将清洗污水排出混浆罐17。
实际固井操作中，若第一喷射泵23或第二喷射泵24发生故障，或根据固井需求，可关闭第一喷射泵23或第二喷射泵24，打开第三阀门25，采用一台喷射泵同时对第一混合器18和第二混合器19进行供水，满足混浆需求。若实际操作过程中，计量罐4供水无法满足混浆要求，则可以采用外接清水管线直接为混合系统10进行补充供水。
实际固井操作中，若混浆罐17不能满足柱塞泵14大排量需求或根据固井需求，可以采用第一外接泥浆管线和/或第二外接泥浆管线进行补充供浆或直接采用第一外接泥浆管线和/或第二外接泥浆管线进行供浆。
本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是说明本发明的原理，在不脱离本发明精神和范围的前提下，本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。

Claims (9)

  1. 一种新型超大排量超高压力固井设备，包括装载体，所述装载体上安装有液压系统、动力传动系统、计量罐、电气系统、气路系统、操控系统、操作平台、柱塞泵、清水管汇、泥浆管汇、高压管汇、混合系统和上灰管汇，其特征在于，所述柱塞泵为五缸柱塞泵。
  2. 根据权利要求1所述的新型超大排量超高压力固井设备，其特征在于：所述五缸柱塞泵的额定功率≥1000hp。
  3. 根据权利要求1所述的新型超大排量超高压力固井设备，其特征在于：所述混合系统还包括混浆罐、第一离心泵、第二离心泵、密度计、第一阀门、第二阀门、第一混合器和第二混合器，所述混浆罐设有2个进口并分别与第一混合器的出口和第二混合器的出口连接，所述混浆罐设有2个出口，其中一个出口与所述第一离心泵的进口连接，所述第一离心泵的出口分为3路，第一路与所述第一混合器的进口连接，第二路与所述密度计进口连接，所述密度计出口与所述第二混合器的进口连接，第三路与所述第一阀门的进口连接，所述第一阀门的出口与所述柱塞泵的进口连接；另一个出口与所述第二离心泵的进口连接，所述第二离心泵的出口分2路，其中一路与所述第二混合器的进口连接，另一路与所述第二阀门的进口连接，所述第二阀门的出口与所述柱塞泵的进口连接。
  4. 根据权利要求3所述的新型超大排量超高压力固井设备，其特征在于：所述固井设备还包括第一外接泥浆管线和第二外接泥浆管线，所述第一外接泥浆管线接入第一离心泵的进口端，所述第二外接泥浆管线接入第二离心泵的进口端。
  5. 根据权利要求3所述的新型超大排量超高压力固井设备，其特征在于：所述 混浆罐还设有排污出口。
  6. 根据权利要求3所述的新型超大排量超高压力固井设备，其特征在于：所述清水管汇包括第一喷射泵和第二喷射泵，所述计量罐的进口连接有外接清水管线，所述计量罐的出口分3路，第一路与所述柱塞泵的进口连接；第二路与所述第一喷射泵的进口连接，所述第一喷射泵的出口与所述第一混合器的进口连接；第三路与所述第二喷射泵的进口连接，所述第二喷射泵的出口与所述第二混合器的进口连接。
  7. 根据权利要求6所述的新型超大排量超高压力固井设备，其特征在于：所述第一喷射泵的出口与所述第二喷射泵的出口通过第三阀门连接。
  8. 根据权利要求6所述的新型超大排量超高压力固井设备，其特征在于：所述外接清水管线分2路，其中一路与所述计量罐的进口连接，另一路与所述第二混合器的进口或第一混合器的进口连接。
  9. 根据权利要求1所述的新型超大排量超高压力固井设备，其特征在于：所述装载体为车载底盘或半挂车底盘或橇装底盘。
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