CN111173476A - Novel super large discharge capacity superhigh pressure well cementation equipment - Google Patents
Novel super large discharge capacity superhigh pressure well cementation equipment Download PDFInfo
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- CN111173476A CN111173476A CN202010067310.0A CN202010067310A CN111173476A CN 111173476 A CN111173476 A CN 111173476A CN 202010067310 A CN202010067310 A CN 202010067310A CN 111173476 A CN111173476 A CN 111173476A
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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
- 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
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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
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Abstract
The invention discloses novel ultra-large-displacement ultra-high pressure well cementation equipment which comprises a loading body, wherein a hydraulic system, a power transmission system, a metering tank, an electrical system, a gas circuit system, an operation platform, a plunger pump, a clear water manifold, a slurry manifold, a high pressure manifold, a mixing system and a loading manifold are arranged on the loading body, and the plunger pump is a five-cylinder plunger pump. The five-cylinder plunger pump is adopted to improve the pressure and the discharge capacity of the well cementation equipment and meet the requirements of high pressure and large discharge capacity; the double mixers are adopted for mixing the slurry, so that the mixing efficiency is increased, the stability of the density of the mixed slurry is improved, and the requirement of long-time uninterrupted operation is met; the pipeline of a mixing system is optimized, and a plurality of sets of mixing systems are integrated on one slurry mixing tank, so that the stability of the equipment is improved; the clear water manifold is optimized, one jet pump can meet the water supply requirements of a plurality of mixers simultaneously, and the requirement of large discharge capacity is met.
Description
Technical Field
The invention relates to the field of petroleum equipment, in particular to novel ultra-large-displacement ultra-high-pressure well cementation equipment.
Background
The frequency of well cementing operation of ultra-deep wells and complex stratums is higher and higher, the difficulty of exploitation is higher and higher, and the difficult problems of high pressure, large displacement, long-time uninterrupted operation and the like are several challenges faced in exploitation. The existing well cementation equipment plunger pump with larger displacement and higher pressure adopts 600hp, can realize 45Mpa pressure, but still is difficult to meet the requirements of the displacement and the pressure of the existing ultra-deep well oil gas exploitation. In addition, the existing single-machine single-pump well cementing truck, double-machine double-pump well cementing truck and thousand-type pump well cementing truck cannot meet the operation requirement independently due to the limitation of power and discharge capacity, in order to meet the requirement of ultra-large discharge capacity operation, a plurality of well cementing trucks are required to be used for simultaneously operating, the occupied space is large, the pipeline connection is complex, and the operation cost is extremely high.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide novel ultra-large-displacement ultra-high pressure well cementation equipment, the pressure and the displacement of the well cementation equipment are improved by adopting a five-cylinder plunger pump, and the requirements of high pressure and large displacement are met; the double mixers are adopted for mixing the slurry, so that the mixing efficiency is increased, the stability of the density of the mixed slurry is improved, and the requirement of long-time uninterrupted operation is met; the pipeline of a mixing system is optimized, and a plurality of sets of mixing systems are integrated on one slurry mixing tank, so that the stability of the equipment is improved; the clear water manifold is optimized, one jet pump can meet the water supply requirements of a plurality of mixers simultaneously, and the requirement of large discharge capacity is met.
The aim of the invention is achieved by the following technical measures: the utility model provides a novel super large discharge capacity superhigh pressure well cementation equipment, includes the loading body, install hydraulic system, driving system, metering tank, electrical system, gas circuit system, control system, operation platform, plunger pump, clear water manifold, mud manifold, high-pressure manifold, mixing system and go up grey manifold on the loading body, the plunger pump is five jar plunger pumps.
Furthermore, the rated power of the five-cylinder plunger pump is more than or equal to 1000 hp.
The mixing system further comprises a slurry mixing tank, a first centrifugal pump, a second centrifugal pump, a densimeter, a first valve, a second valve, a first mixer and a second mixer, wherein the slurry mixing tank is provided with 2 inlets which are respectively connected with an outlet of the first mixer and an outlet of the second mixer, the slurry mixing tank is provided with 2 outlets, one outlet is connected with an inlet of the first centrifugal pump, the outlet of the first centrifugal pump is divided into 3 paths, the first path is connected with the inlet of the first mixer, the second path is connected with the inlet of the densimeter, the outlet of the densimeter is connected with the inlet of the second mixer, the third path is connected with the inlet of the first valve, and the outlet of the first valve is connected with the inlet of the plunger pump; and the other outlet is connected with the inlet of the second centrifugal pump, the outlet of the second centrifugal pump is divided into 2 paths, one path of the outlet is connected with the inlet of the second mixer, the other path of the outlet is connected with the inlet of the second valve, and the outlet of the second valve is connected with the inlet of the plunger pump.
Furthermore, the well cementation equipment further comprises a first external slurry pipeline and a second external slurry pipeline, wherein the first external slurry pipeline is connected to the inlet end of the first centrifugal pump, and the second external slurry pipeline is connected to the inlet end of the second centrifugal pump.
Further, the slurry mixing tank is also provided with a sewage discharge outlet.
Furthermore, the clean water manifold comprises a first injection pump and a second injection pump, an inlet of the metering tank is connected with an external clean water pipeline, an outlet of the metering tank is divided into 3 paths, and the first path is connected with an inlet of the plunger pump; the second path is connected with an inlet of the first jet pump, and an outlet of the first jet pump is connected with an inlet of the first mixer; the third path is connected with an inlet of the second jet pump, and an outlet of the second jet pump is connected with an inlet of the second mixer.
Further, the outlet of the first jet pump is connected with the outlet of the second jet pump through a third valve.
Furthermore, the external clean water pipeline is divided into 2 paths, wherein one path is connected with an inlet of the metering tank, and the other path is connected with an inlet of the second mixer or an inlet of the first mixer.
Further, the loading body is a vehicle-mounted chassis or a semitrailer chassis or a skid-mounted chassis.
Compared with the prior art, the invention has the beneficial effects that: the novel ultra-large-displacement ultrahigh-pressure well cementation equipment adopts the five-cylinder plunger pump to improve the pressure and the displacement of the well cementation equipment and meet the requirements of high pressure and large displacement; the double mixers are adopted for mixing the slurry, so that the mixing efficiency is increased, the stability of the density of the mixed slurry is improved, and the requirement of long-time uninterrupted operation is met; the pipeline of a mixing system is optimized, and a plurality of sets of mixing systems are integrated on one slurry mixing tank, so that the stability of the equipment is improved; the clear water manifold is optimized, one jet pump can meet the water supply requirements of a plurality of mixers simultaneously, and the requirement of large discharge capacity is met.
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is a front view of the novel ultra-large-displacement ultra-high pressure cementing device.
Fig. 2 is a schematic structural diagram of the novel ultra-large-displacement ultra-high pressure well cementation equipment.
FIG. 3 is a process flow diagram of the slurry mixing process.
The system comprises a carrier 1, a hydraulic system 2, a power transmission system 3, a metering tank 4, a packing lubrication system 5, a gas circuit system 6, an operation system 7, an electrical system 8, a high-pressure manifold 9, a mixing system 10, an ash feeding manifold 11, a slurry feeding manifold 12, an operation platform 13, a plunger pump 14, a clean water manifold 15, a power end lubrication system 16, a slurry mixing tank 17, a first mixer 18, a second mixer 19, a first centrifugal pump 20, a second centrifugal pump 21, a second centrifugal pump 22, a second valve 23, a first injection pump 24, a second injection pump 25, a third valve 26, a first valve 27 and a densimeter.
Detailed Description
As shown in fig. 1 to 3, a novel ultra-large displacement ultra-high pressure well cementation device comprises a loading body 1, a hydraulic system 2, a power transmission system 3, a metering tank 4, an electrical system 8, a gas circuit system 6, an operation system 7, an operation platform 13, a plunger pump 14, a clean water manifold 15, a slurry manifold 12, a high pressure manifold 9, a mixing system 10 and an ash feeding manifold 11, wherein the hydraulic system 2, the power transmission system 3, the metering tank 4, the operation platform 13 and the mixing system 10 are sequentially installed on the loading body 1, the electrical system 8 is used for supplying power to electrical elements on the well cementation device, the gas circuit system 6 and the operation system 7 are sequentially installed on the operation platform 13, the bottom of the metering tank 4 is connected with an inlet of the clean water manifold 15, an outlet of the clean water manifold 15 is respectively connected with inlets of the mixing system 10 and the plunger pump 14, the plunger pump 14 is located below the operating platform 13, an inlet of the plunger pump 14 is further connected with the slurry manifold 12, the slurry manifold 12 is used for conveying slurry mixed by the mixing system 10 to the plunger pump 14, an outlet of the plunger pump 14 is connected with the high-pressure manifold 9, the ash feeding manifold 11 is used for supplying ash to the mixing system 10, and the plunger pump 14 is a five-cylinder plunger pump. More preferably, the rated power of the five-cylinder plunger pump is more than or equal to 1000 hp. The five-cylinder plunger pump with the rated power of 1000hp can realize the pressure of 65MPa, improve the pressure and the discharge capacity of well cementation equipment, and meet the requirements of high pressure and large discharge capacity. The novel ultra-large displacement ultra-high pressure well cementation equipment further comprises a lubricating system, wherein the lubricating system is composed of a power end lubricating system 16 and a packing lubricating system 5.
The invention comprises the following system assemblies:
power train 3: the system comprises an engine, a gearbox, a transmission shaft, a supporting base, an air inlet system, an exhaust system, a cooling system, a fuel system and the like. The power transmission system 3 serves as a power source of the equipment and provides power for working components on the equipment.
The electrical system 8 has the main functions:
(1) controlling the engine to start;
(2) to control the mixing system 10;
(3) power is supplied to electrical components, and indication lamps such as a touch screen, an instrument, a locking indicator lamp, an overpressure indicator lamp and the like are ensured to display during operation;
(4) all the illuminating lamps are powered to ensure that the equipment works at night;
(5) the power supply is completed by a storage battery. Starting the engine knows that the generator of the engine can charge the battery. The voltage of all electrical devices on the device is 24 VDC.
The control system 7: the control system 7 is connected with a remote control system, and main control components, display components and the like of the power transmission system 3, the hybrid system 10 and the like are centrally installed on the control system 7, and are main operation places when the equipment works. The remote control system comprises a remote control box, a cloud deck, a data acquisition system, a notebook computer and the like, the remote control system can enable an operator to be far away from the operating environment of operation, well cementation equipment is operated at a distance, a noise and high-pressure area are far away, the operating condition on the well cementation equipment can be observed at a distance through a camera, the operator is enabled to be personally on the scene, and the operation experience of what you see is what you get is achieved.
High-pressure manifold 9: the plunger pump 14 and each plug valve are connected, the discharge port is extended to a proper position, and the functions of well site external connection, pressure measurement, manifold switch control, pressure relief, overpressure protection and the like are facilitated.
The mixing system 10 comprises 2 mixers, respectively a first mixer 18 and a second mixer 19. The mixing system 10 is mainly used for mixing slurry, and adopts double mixers to mix slurry, so that the mixing efficiency is increased, the stability of the mixed slurry density is improved, and the long-time uninterrupted operation requirement is ensured.
The mixing system 10 further comprises a slurry 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, wherein the slurry mixing tank 17 is provided with 2 inlets and is respectively connected with 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 connected to the upper ash manifold 11, respectively. The slurry mixing tank 17 is provided with 2 outlets, one of the outlets is connected with an inlet of the first centrifugal pump 20, the outlet of the first centrifugal pump 20 is divided into 3 paths, the first path is connected with an inlet of the first mixer 18, the second path is connected with an inlet of the densimeter 27, the outlet of the densimeter 27 is connected with an inlet of the second mixer 19 or an inlet of the first mixer 18, and further preferably, the outlet of the densimeter 27 is connected with an inlet of the second mixer 19. The third path is connected with the inlet of the first valve 26, and the outlet of the first valve 26 is connected with the inlet of the plunger pump 14; the other outlet is connected with the inlet of the second centrifugal pump 21, the outlet of the second centrifugal pump 21 is divided into 2 paths, one path is connected with the inlet of the second mixer 19, the other path is connected with the inlet of the second valve 22, and the outlet of the second valve 22 is connected with the inlet of the plunger pump 14. The pipeline of the mixing system 10 is optimized, and a plurality of sets of mixing systems 10 are integrated on one slurry mixing tank 17, so that the stability of the equipment is improved.
The well cementation equipment further comprises a first external slurry pipeline and a second external slurry pipeline, wherein the first external slurry pipeline is connected to the inlet end of the first centrifugal pump 20, and the second external slurry pipeline is connected to the inlet end of the second centrifugal pump 21. When the slurry mixing tank 17 is in failure or according to the field operation requirement, the mixed slurry can be directly conveyed to the plunger pump 14 by the first centrifugal pump and the second centrifugal pump through the external slurry pipeline for well cementation operation.
The slurry mixing tank 17 is also provided with a sewage discharge outlet. After the well cementation operation is completed, the slurry mixing tank 17 needs to be flushed, and the sewage discharge port is used for discharging cleaning sewage.
The clean water manifold 15 comprises a first injection pump 23 and a second injection pump 24, an inlet of the metering tank 4 is connected with an external clean water pipeline, an outlet of the metering tank 4 is divided into 3 paths, and the first path is connected with an inlet of the plunger pump 14; the second way is connected with the inlet of the first jet pump 23, and the outlet of the first jet pump 23 is connected with the inlet of the first mixer 18; the third path is connected with the inlet of the second jet pump 24, 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 by a third valve 25. The first and second jet pumps 23 and 24 can either simultaneously provide fresh water to the mixing system 10 or separately provide water to the mixing system 10. The clear water manifold 15 is optimized, one jet pump can meet the water supply requirements of a plurality of mixers at the same time, and the requirement of large discharge capacity is met.
The external clean water pipeline is divided into 2 paths, wherein one path is connected with an inlet of the metering tank 4, and the other path is connected with an inlet of the second mixer 19 or an inlet of the first mixer 18. After the cementing operation is completed, the mixing system 10 can be directly cleaned by externally connecting clear water.
The loading body 1 is a vehicle-mounted chassis or a semitrailer chassis or a skid-mounted chassis.
The working principle of the slurry mixing process is as follows:
the well cementation equipment is started, clean water is introduced into the metering tank 4 through an external clean water pipeline, meanwhile, a valve on a pipeline between the metering tank 4 and the plunger pump 14 is closed, a valve between the metering tank 4 and the first injection pump 23 and the second injection pump 24 is opened, the third valve 25 is closed, the first injection pump 23 and the second injection pump 24 respectively inject the clean water into the first mixer 28 and the second mixer 29, meanwhile, the ash feeding manifold 11 respectively sprays ash into the first mixer 28 and the second mixer 29, and the clean water and the ash are respectively mixed in the first mixer 28 and the second mixer 29 and then enter the slurry mixing tank 17. At the moment, a sewage discharge outlet of the slurry mixing tank 17 is closed, the first valve 26 and the second valve 22 are closed, part of mixed slurry in the slurry mixing tank 17 is conveyed to the densimeter 27 after passing through the first centrifugal pump 20, the mixed slurry density is monitored and then returned to the second mixer 19, if the mixed slurry density meets the well cementation requirement, the first valve 26 and the second valve 22 are opened, the mixed slurry is conveyed to the plunger pump 14 from the slurry mixing tank 17 through the first centrifugal pump 20 and the second centrifugal pump 21, and the plunger pump 14 performs grouting operation; if the mixed slurry density does not meet the well cementation requirement, the mixed slurry returns to the first mixer 18 and the second mixer 19 through the first centrifugal pump 20 and the second centrifugal pump 21 for circular mixing operation until the mixed slurry density meets the well cementation requirement. When the grouting operation is completed, a valve on a connecting pipeline between the metering tank 4 and the plunger pump 14 can be opened, and the plunger pump 14 is subjected to water injection cleaning. Meanwhile, the external clean water pipeline directly injects clean water into the first mixer 18 or the second mixer 19, and the clean water enters the slurry mixing tank 17 through the first mixer 18 or the second mixer 19 to clean the slurry mixing tank 17, and at the moment, a sewage discharge outlet of the slurry mixing tank 17 is opened, and the cleaned sewage is discharged out of the slurry mixing tank 17.
In the actual well cementation operation, if the first jet pump 23 or the second jet pump 24 fails or according to the well cementation requirement, the first jet pump 23 or the second jet pump 24 can be closed, the third valve 25 can be opened, and one jet pump is adopted to simultaneously supply water to the first mixer 18 and the second mixer 19, so that the slurry mixing requirement is met. If the water supply of the metering tank 4 can not meet the slurry mixing requirement in the actual operation process, an external clean water pipeline can be adopted to directly supply water for the mixing system 10 in a supplementing way.
In actual well cementation operation, if the slurry mixing tank 17 cannot meet the requirement of the plunger pump 14 for large discharge or according to the well cementation requirement, the first external slurry pipeline and/or the second external slurry pipeline can be adopted for supplementary slurry supply or the first external slurry pipeline and/or the second external slurry pipeline can be directly adopted for slurry supply.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The utility model provides a novel super large discharge capacity superhigh pressure well cementation equipment, includes the loading body, install hydraulic system, driving system, metering tank, electrical system, gas circuit system, control system, operation platform, plunger pump, clear water manifold, mud manifold, high-pressure manifold, mixing system and go up grey manifold on the loading body, its characterized in that, the plunger pump is five jar plunger pumps.
2. The new ultra-large displacement ultra-high pressure cementing equipment of claim 1, wherein: the rated power of the five-cylinder plunger pump is more than or equal to 1000 hp.
3. The new ultra-large displacement ultra-high pressure cementing equipment of claim 1, wherein: the mixing system further comprises a slurry mixing tank, a first centrifugal pump, a second centrifugal pump, a densimeter, a first valve, a second valve, a first mixer and a second mixer, wherein the slurry mixing tank is provided with 2 inlets which are respectively connected with an outlet of the first mixer and an outlet of the second mixer, the slurry mixing tank is provided with 2 outlets, one outlet is connected with the inlet of the first centrifugal pump, the outlet of the first centrifugal pump is divided into 3 paths, the first path is connected with the inlet of the first mixer, the second path is connected with the inlet of the densimeter, the outlet of the densimeter is connected with the inlet of the second mixer, the third path is connected with the inlet of the first valve, and the outlet of the first valve is connected with the inlet of the plunger pump; and the other outlet is connected with the inlet of the second centrifugal pump, the outlet of the second centrifugal pump is divided into 2 paths, one path of the outlet is connected with the inlet of the second mixer, the other path of the outlet is connected with the inlet of the second valve, and the outlet of the second valve is connected with the inlet of the plunger pump.
4. The new ultra-large displacement ultra-high pressure cementing equipment of claim 3, wherein: the well cementation equipment further comprises a first external slurry pipeline and a second external slurry pipeline, wherein the first external slurry pipeline is connected to the inlet end of the first centrifugal pump, and the second external slurry pipeline is connected to the inlet end of the second centrifugal pump.
5. The new ultra-large displacement ultra-high pressure cementing equipment of claim 3, wherein: the slurry mixing tank is also provided with a sewage discharge outlet.
6. The new ultra-large displacement ultra-high pressure cementing equipment of claim 3, wherein: the clear water manifold comprises a first injection pump and a second injection pump, an inlet of the metering tank is connected with an external clear water pipeline, an outlet of the metering tank is divided into 3 paths, and the first path is connected with an inlet of the plunger pump; the second path is connected with an inlet of the first jet pump, and an outlet of the first jet pump is connected with an inlet of the first mixer; the third path is connected with an inlet of the second jet pump, and an outlet of the second jet pump is connected with an inlet of the second mixer.
7. The new ultra-large displacement ultra-high pressure cementing equipment of claim 6, wherein: and the outlet of the first jet pump is connected with the outlet of the second jet pump through a third valve.
8. The new ultra-large displacement ultra-high pressure cementing equipment of claim 6, wherein: the external clean water pipeline is divided into 2 paths, wherein one path is connected with an inlet of the metering tank, and the other path is connected with an inlet of the second mixer or an inlet of the first mixer.
9. The new ultra-large displacement ultra-high pressure cementing equipment of claim 1, wherein: the loading body is a vehicle-mounted chassis or a semitrailer chassis or a skid-mounted chassis.
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2020
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Inventor after: Wang Yanfeng Inventor after: Wang Jin Inventor after: Liang Hu Inventor after: Zou Lifu Inventor after: Zhang Shuli Inventor after: Li Enjie Inventor after: Liu Ren Inventor after: Sun Shuchun Inventor after: Zhou Zhangli Inventor after: Wu Zhangye Inventor after: Ma Denggang Inventor before: Wang Yanfeng Inventor before: Wang Jin Inventor before: Liang Hu Inventor before: Zou Lifu Inventor before: Zhang Shuli Inventor before: Li Enjie Inventor before: Liu Ren Inventor before: Wu Zhangye Inventor before: Ma Denggang Inventor before: Yu Xiaogang Inventor before: Yuan Yinlong |