CN116241224A - Well completion fracturing construction system - Google Patents
Well completion fracturing construction system Download PDFInfo
- Publication number
- CN116241224A CN116241224A CN202310185728.5A CN202310185728A CN116241224A CN 116241224 A CN116241224 A CN 116241224A CN 202310185728 A CN202310185728 A CN 202310185728A CN 116241224 A CN116241224 A CN 116241224A
- Authority
- CN
- China
- Prior art keywords
- sliding sleeve
- mounting cylinder
- control
- chamber
- fracturing construction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010276 construction Methods 0.000 title claims abstract description 87
- 238000000034 method Methods 0.000 claims abstract description 34
- 230000008569 process Effects 0.000 claims abstract description 33
- 230000005540 biological transmission Effects 0.000 claims description 24
- 239000010720 hydraulic oil Substances 0.000 claims description 22
- 238000009434 installation Methods 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 6
- 230000009466 transformation Effects 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 9
- 239000003921 oil Substances 0.000 description 8
- 230000001276 controlling effect Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 6
- 238000011161 development Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000011160 research Methods 0.000 description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 3
- 235000017491 Bambusa tulda Nutrition 0.000 description 3
- 241001330002 Bambuseae Species 0.000 description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 3
- 239000011425 bamboo Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
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
- 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
-
- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/08—Valve arrangements for boreholes or wells in wells responsive to flow or pressure of the fluid obtained
-
- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/16—Control means therefor being 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
- E21B2200/00—Special features related to earth drilling for obtaining oil, gas or water
- E21B2200/06—Sleeve valves
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention relates to the technical field of oil and gas exploitation, in particular to a well completion fracturing construction system; when the fracturing construction of the well completion is carried out, the process pipe column can be put into the well completion, each control valve is arranged on the process pipe column at intervals along the extending direction of the process pipe column, the control valve is arranged on the process pipe column through a mounting cylinder, a sliding sleeve and a control module, the control valve is arranged on the mounting cylinder through the mounting cylinder, a construction hole is formed in the surface of the mounting cylinder, the sliding sleeve is connected to the mounting cylinder in a sliding mode, and the control module is arranged on the mounting cylinder; because the control unit controls the start and stop of each control module electric connection, the construction holes of each mounting cylinder are opened or closed, and in the fracturing construction process, the construction holes at the corresponding layers can be controlled to be opened or closed according to the fracturing construction requirement, each producing layer section is subjected to balanced transformation, and the comprehensive exploitation benefit of the long horizontal well oil gas is improved.
Description
Technical Field
The invention relates to the technical field of oil and gas exploitation, in particular to a well completion fracturing construction system.
Background
Along with the increasingly outstanding contradiction between energy supply and demand, the development of petroleum and natural gas is going to a path for deep shale gas development. Deep shale gas reservoirs in China have rare and complex world characteristics such as complex structure, bedding/microcrack development, thin target body, poor rock drillability and the like, so that unbalanced drainage and mining phenomena are extremely serious. Therefore, a "open hole packer+step-by-step ball-throwing sliding sleeve" fracturing string is required for completion and fracturing.
The intelligent well completion is an effective means for improving the recovery ratio, reducing the cost and improving the development effect of the oil and gas field, and is also a development trend of intelligent oil and gas field construction. The foreign large oil service companies successively develop various intelligent well completion systems around aspects of intelligent separate mining, remote control, layered fracturing and the like. The research in the field of intelligent well completion in China is still in a starting stage, the research key points are relatively dispersed, the comprehensive control research on the underground control valve is not deep, only a few researches are carried out on underground dynamic monitoring, and the technologies are not applied to mature sites at present.
In the existing layered fracturing well cementation tubular column commonly used in the market, a well cementation sliding sleeve, a ball seat sliding sleeve and a toe end sliding sleeve are necessary tools. In the coiled tubing operation process, because the number of stages of the ball seat sliding sleeve is limited and the drift diameter is smaller and smaller due to the diameter reduction structure of the ball seat sliding sleeve, the conventional staged fracturing process tubular column cannot realize balanced and effective transformation of each production zone section for stratums with obvious geological differences, so that the intelligent fluid control valve technology is urgently promoted, and repeated selective fracturing construction is carried out by combining a ground control technology system (comprising information transmission and energy supply) so as to prolong deep layer pages, improve the production period of a rock reservoir and improve the comprehensive exploitation benefit of oil and gas of a long horizontal well.
Disclosure of Invention
The invention aims to overcome the technical defects, provides a well completion fracturing construction system, and solves the technical problems that in the prior art, a fracturing construction process pipe column is difficult to carry out balanced transformation on each production zone section of a stratum with obvious geological difference, and the comprehensive exploitation benefit of oil gas of a long horizontal well is affected.
In order to achieve the technical purpose, the technical scheme of the invention provides a well completion fracturing construction system, which comprises the following steps:
a process string for running into a completion;
the control valves are arranged on the process pipe column at intervals along the extending direction of the process pipe column, each control valve comprises a mounting cylinder, a sliding sleeve and a control module, the mounting cylinder is arranged on the process pipe column, a construction hole is formed in the surface of the mounting cylinder and is used for fracturing construction, the sliding sleeve is connected with the mounting cylinder in a sliding manner, the control module is arranged on the mounting cylinder, and the control module is used for driving the sliding sleeve to slide along the mounting cylinder to open or close the construction hole;
and the control unit is electrically connected with each control module and used for controlling the start and stop of each control module.
Optionally, the inside of installation section of thick bamboo is provided with the hydraulic pressure chamber, the both ends of hydraulic pressure chamber respectively with the sliding sleeve with control module is connected, the hydraulic pressure chamber is used for filling hydraulic oil, control module is used for passing through the hydraulic oil in hydraulic pressure chamber, the drive the sliding sleeve slides.
Optionally, be provided with between the sliding sleeve with the installation section of thick bamboo is followed the axial interval of sliding sleeve sets up first drive chamber and second drive chamber, control module includes first control assembly and second control assembly, first control assembly with second control assembly is used for the drive the confession of hydraulic pressure chamber is pressed liquid and is got into alternately first drive chamber or second drive chamber.
Optionally, the second driving cavity is an annular cavity.
Optionally, the hydraulic cavity includes a first connecting cavity and a second connecting cavity, the first connecting cavity is communicated with the first driving cavity, the second connecting cavity is communicated with the second driving cavity, and the first connecting cavity and the second connecting cavity are respectively connected with the first control component and the second control component.
Optionally, the second driving cavity is also in communication with the first connecting cavity.
Optionally, the first control assembly includes motor, lead screw and drive assembly, the motor is fixed in the installation section of thick bamboo, the one end sliding connection of lead screw in first connecting chamber, the other end of lead screw towards the direction of motor extends, drive assembly with the lead screw with the spindle connection of motor, the motor is used for through drive assembly's transmission drives the lead screw is followed first connecting chamber slides.
Optionally, the transmission assembly comprises a screw rod sleeve and a transmission gear, the screw rod sleeve is sleeved on the surface of the screw rod and is in threaded connection with the screw rod, and the transmission gear is fixed on a crankshaft of the motor and is meshed with the screw rod sleeve.
Optionally, the control valve further comprises a limiting column and a plunger, wherein the limiting column is installed on the installation cylinder and extends to the first driving cavity and is used for limiting rotation of the sliding sleeve, and the plunger is in threaded connection with the installation cylinder and abuts against the limiting column.
Optionally, a connecting hole is formed in the surface of the sliding sleeve, and the sliding sleeve can be connected with the construction hole through sliding along the inner wall of the mounting cylinder.
Compared with the prior art, the well completion fracturing construction system provided by the invention has the beneficial effects that: when the fracturing construction of the well completion is carried out, the process pipe column can be put into the well completion, each control valve is arranged on the process pipe column at intervals along the extending direction of the process pipe column, the control valve is arranged on the process pipe column through a mounting cylinder, a sliding sleeve and a control module, the control valve is arranged on the surface of the mounting cylinder through the mounting cylinder, a construction hole is formed in the surface of the mounting cylinder, the construction hole can be used for fracturing construction, the sliding sleeve is connected to the mounting cylinder in a sliding mode, the control module is arranged on the mounting cylinder, and the control module can drive the sliding sleeve to slide along the mounting cylinder to open or close the construction hole; because the control unit is electrically connected with each control module, the control unit can control the start and stop of the control module to open or close the construction holes of each mounting cylinder, so that in the fracturing construction process, the construction holes at any layer can be selectively opened or closed under the control of the control unit, and further, the construction holes at the corresponding layer can be controlled to open or close according to the requirements of fracturing construction, and each production zone section is subjected to balanced transformation so as to prolong the production period of a deep shale reservoir and improve the comprehensive exploitation benefit of oil gas of a long horizontal well.
Drawings
Fig. 1 is a schematic diagram of a well completion fracturing construction system provided by an embodiment of the invention.
Fig. 2 is a schematic structural diagram of a process string of the well completion fracturing construction system according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a control valve of a well completion fracturing construction system according to an embodiment of the present invention.
Fig. 4 is a partial enlarged view at a in fig. 3.
Fig. 5 is a partial enlarged view at B in fig. 3.
Fig. 6 is a partial enlarged view at C in fig. 3.
Fig. 7 is a cross-sectional view taken along line A-A in fig. 3.
Fig. 8 is a schematic structural diagram of a control valve when a construction hole of the well completion fracturing construction system provided by the embodiment of the invention is in a closed state.
Fig. 9 is a schematic structural diagram of a control valve when a construction hole of a well completion fracturing construction system provided by an embodiment of the invention is in an open state.
Wherein, each reference sign in the figure:
10-process column 20-control unit 30-power supply unit
40-control valve 41-construction hole 42-mounting cylinder
43-sliding sleeve 44-control module 45-first driving cavity
46-second driving chamber 47-limit post 48-plunger
421-hydraulic chamber 431-connecting hole 441-first control assembly
442-second control assembly 443-motor 444-screw
445-drive assembly 446-circuit board 4211-first connecting chamber
4212-second connecting cavity 4451-screw sleeve 4452-transmission gear.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The invention provides a well completion fracturing construction system, which is shown in fig. 1-2, and comprises a process pipe column 10, a control unit 20, a power supply unit 30 and a plurality of control valves 40, wherein the process pipe column 10 is used for running into a well completion; each control valve 40 is arranged on the process pipe column 10 at intervals along the extending direction of the process pipe column 10, and each control valve 40 is provided with a construction hole 41 for fracturing construction; the control unit 20 is electrically connected to each control valve 40, and is used for opening or closing the construction hole 41 by controlling the control valve 40; the power supply unit 30 is electrically connected to the control unit 20 for supplying power to the control unit 20.
Specifically, in the well completion fracturing construction system, when the fracturing construction of the well completion is performed by arranging the process pipe column 10, the control unit 20, the power supply unit 30 and the plurality of control valves 40, the process pipe column 10 can be put into the well completion, each control valve 40 is arranged on the process pipe column 10 at intervals along the extending direction of the process pipe column 10, each control valve 40 is provided with a construction hole 41, the process pipe column 10 can perform fracturing construction through the construction holes 41, because the control unit 20 is electrically connected with each control valve 40, the control unit 20 can open or close the construction holes 41 of each control valve 40 through controlling the control valves 40, when the fracturing construction is performed, the construction holes 41 of any layer can be selectively opened or closed through controlling the control unit 20, when the fracturing construction is performed, the sequential construction can be performed through each construction hole 41, or the construction holes 41 of the corresponding layer can be controlled to be opened or closed according to the requirement of the fracturing construction, and the independent construction of the layer is performed, so that each production layer section can be balanced and reformed, the production period of a deep shale reservoir is prolonged, and the comprehensive oil and gas benefit of a long horizontal well is improved.
It is understood that the power supply unit 30 may be a commercial power or any power supply device installed at a construction site.
In this embodiment, as shown in fig. 3 and 8-9, the control valve 40 includes a mounting cylinder 42, a sliding sleeve 43 and a control module 44, the mounting cylinder 42 is mounted on the process pipe column 10, the construction hole 41 is mounted on the surface of the mounting cylinder 42, the sliding sleeve 43 is slidably connected to the inner wall of the mounting cylinder 42 and located at one side of the construction hole, the control module 44 is mounted on the mounting cylinder 42 and electrically connected with the control unit 20, and the control unit 20 is used for controlling the start and stop of the control module 44, so that the control module 44 drives the sliding sleeve 43 to slide along the inner wall of the mounting cylinder 42, and the construction hole is opened or closed. Specifically, when performing the fracturing construction, the control unit 20 sends a control signal to the control module 44, and the control module 44 controls the sliding sleeve 43 to slide, so that the sliding sleeve 43 exposes the construction hole 41 or shields the construction hole 41, and further controls the opening or closing of the construction hole 41.
In this embodiment, as shown in fig. 3, 5 and 8-9, a connecting hole 431 is formed on the surface of the sliding sleeve 43, and the sliding sleeve 43 can be connected with the construction hole by sliding along the inner wall of the mounting cylinder 42. Specifically, the control module 44 controls the sliding sleeve 43 to slide, so that the connection hole 431 and the construction hole are aligned or staggered, and further the construction hole can be opened or closed.
In this embodiment, as shown in fig. 3 to 4 and 8 to 9, a hydraulic chamber 421 is disposed inside the mounting cylinder 42, two ends of the hydraulic chamber 421 are respectively connected to the sliding sleeve 43 and the control module 44, the hydraulic chamber 421 is filled with hydraulic oil, and the control module 44 is used for driving the sliding sleeve 43 to slide through the hydraulic oil in the hydraulic chamber 421. Specifically, the control module 44 may control the hydraulic oil driving the hydraulic chamber 421 to make the hydraulic oil push the sliding sleeve 43 to slide.
It is understood that the hydraulic chamber 421 may be disposed at one side of the end of the sliding sleeve 43, and the control module 44 may control the hydraulic oil to reciprocate in the hydraulic chamber 421 to realize the sliding of the sliding sleeve 43 in the mounting cylinder 42.
In this embodiment, as shown in fig. 3 to 4 and 8 to 9, a first driving cavity 45 and a second driving cavity 46 are disposed between the sliding sleeve 43 and the mounting cylinder at intervals along the axial direction of the sliding sleeve 43, and the control module 44 includes a first control component 441 and a second control component 442, where the first control component 441 and the second control component 442 are used to drive the pressure liquid in the hydraulic cavity 421 to alternately enter the first driving cavity 45 or the second driving cavity 46. Specifically, when the first control component 441 controls hydraulic oil to enter the first driving cavity 45, the hydraulic oil drives the sliding sleeve 43 to slide towards one side of the first driving cavity 45, and when the second control component 442 controls hydraulic oil to enter the second driving cavity 46, the hydraulic oil drives the sliding sleeve 43 to slide towards one side of the second driving cavity 46, so as to realize reciprocating sliding of the sliding sleeve 43 and opening or closing of the construction hole 41.
In this embodiment, further, the second driving chamber 46 is an annular chamber. Specifically, the second driving cavity 46 is configured as an annular cavity, so that the circumferential force of the sliding sleeve 43 can be balanced, and the sliding sleeve can slide in the mounting cylinder 42 in a balanced manner.
In the present embodiment, as shown in fig. 3 to 4 and 8 to 9, the hydraulic chamber 421 includes a first connecting chamber 4211 and a second connecting chamber 4212, the first connecting chamber 4211 communicates with the first driving chamber 45, the second connecting chamber 4212 communicates with the second driving chamber 46, and the first connecting chamber 4211 and the second connecting chamber 4212 are connected to the first control unit 441 and the second control unit 442, respectively.
Specifically, the first control assembly 441 is configured to drive hydraulic oil in the first connection chamber 4211 into the first driving chamber 45, or pump driving fluid from the first driving chamber 45 to the first connection chamber 4211, and the second control assembly 442 is configured to drive hydraulic oil in the second connection chamber 4212 into the second driving chamber 46, or pump driving fluid from the second driving chamber 46 to the second connection chamber 4212.
When the first control component 441 drives the hydraulic oil in the first connecting cavity 4211 to enter the first driving cavity 45, the second control component 442 drives the driving liquid in the second driving cavity 46 to enter the second connecting cavity 4212, so that the volume of the first driving cavity 45 is increased, the volume of the second driving cavity 46 is reduced, the sliding sleeve 43 slides towards one side of the first driving cavity 45, the connecting hole 431 and the construction hole 41 are staggered, and the construction hole 41 is closed; when the first control component 441 drives the hydraulic oil in the first driving cavity 45 to enter the first connecting cavity 4211, the second control component 442 drives the driving liquid in the second connecting cavity 4212 to enter the second driving cavity 46, so that the volume of the first driving cavity 45 is reduced, the volume of the second driving cavity 46 is increased, the sliding sleeve 43 slides towards one side of the second driving cavity 46, the connecting hole 431 is connected with the construction hole 41, and the construction hole 41 is opened.
In this embodiment, further, as shown in fig. 3 to 4 and 8 to 9, the second driving chamber 46 is also in communication with the first connecting chamber 4211. Specifically, if the second driving chamber 46 is disconnected from the first connecting chamber 4211, in order to avoid the interaction between the first control unit 441 and the second control unit 442, the operation speeds of the first control unit 441 and the second control unit 442 need to be kept synchronous, and through the communication arrangement between the second driving chamber 46 and the first connecting chamber 4211, even if there is a partial deviation between the operation of the first control unit 441 and the second control unit 442, hydraulic oil can enter the second driving chamber 46 through the first connecting chamber 4211 or enter the first connecting chamber 4211 from the second driving chamber 46; that is, if the first control assembly 441 is greater than the operating speed of the second control assembly 442, hydraulic oil may enter the first connecting chamber 4211 from the second driving chamber 46 to supplement the hydraulic oil of the first driving chamber 45 and the first connecting chamber 4211, and if the second control assembly 442 is greater than the operating speed of the first control assembly 441, hydraulic oil may enter the second driving chamber 46 from the first connecting chamber 4211 to supplement the hydraulic oil of the second driving chamber 46 and the second connecting chamber 4212.
In this embodiment, as shown in fig. 3 and 7-9, the first control assembly 441 includes a motor 443, a screw 444 and a transmission assembly 445, the motor 443 is fixed on the mounting barrel 42, one end of the screw 444 is slidably connected to the first connecting cavity 4211, the other end of the screw 444 extends toward the motor 443, the transmission assembly 445 is connected to the screw 444 and a shaft of the motor 443, and the motor 443 is used for driving the screw 444 to slide along the first connecting cavity 4211 through transmission of the transmission assembly 445. Specifically, when the sliding sleeve 43 is hydraulically driven, the control unit 20 controls the motor 443 to start, and the motor 443 drives the screw 444 to rotate through the transmission assembly 445 and slide along the first connecting chamber 4211, so that the driving liquid is driven to the first driving chamber 45 by the first connecting chamber 4211 or the driving liquid is pumped to the first connecting chamber 4211 by the first driving chamber 45.
In this embodiment, as shown in fig. 7, the first control assembly 441 further includes a circuit board 446, and the circuit board 446 is electrically connected to the control unit 20 and the motor 443.
In this embodiment, the second control assembly 442 and the first control assembly 441 have the same structure, and the screw 444 of the second control assembly 442 is slidably connected to the second connecting chamber 4212.
In this embodiment, as shown in fig. 3 and 8 to 9, the transmission assembly 445 includes a screw housing 4451 and a transmission gear 4452, the screw housing 4451 is sleeved on the surface of the screw 444 and is in threaded connection with the screw 444, and the transmission gear 4452 is fixed to the shaft of the motor 443 and is meshed with the screw housing 4451. Specifically, when the sliding sleeve 43 is hydraulically driven, the motor 443 drives the transmission gear 4452 to rotate, the transmission gear 4452 drives the screw sleeve 4451 to rotate, and the screw sleeve 4451 drives the screw 444 to slide along the first connecting cavity 4211.
In this embodiment, as shown in fig. 3 to 4 and 8 to 9, the control valve 40 further includes a limiting post 47 and a plunger 48, the limiting post 47 is mounted on the mounting cylinder 42 and extends to the first driving cavity 45 for limiting the rotation of the sliding sleeve 43, and the plunger 48 is in threaded connection with the mounting cylinder 42 and abuts against the limiting post 47. Specifically, the spacing post 47 can effectively restrict the sleeve to rotate inside the mounting cylinder 42 by extending to the first driving cavity 45, and the plunger 48 can fix the spacing post 47 by being in threaded connection with the mounting cylinder 42, so that the disassembly and assembly of the spacing post 47 are convenient, and convenience is provided for the disassembly and assembly of the sliding sleeve 43.
In this embodiment, the power supply unit 30 can supply power to the control unit 20, and also can supply power to the control valve 40, the output voltage of the power supply unit 30 is an adjustable voltage of AC220V and DC1471V, and can provide a voltage of 48V to the process pipe column 10, the common engineering power uses 380V three-phase alternating current, the alternating current 703V is output through the three-phase dry isolation transformer, the alternating current 1471V is output through the three-phase bridge rectifier and regulated to be direct current 1471V (the output voltage is 2.34 times of the input voltage through the three-phase bridge rectifier), and the direct current 48V is output due to line resistance loss, and the direct current 48V is output through the power module after voltage reduction and voltage stabilization to the working voltages (12V, 24V, etc.) required by each sensor or motor 443.
In this embodiment, the controller of the control unit 20 is mainly responsible for controlling the transmission of driving signals and the analysis, processing and feedback of data reception, and remotely controlling the downhole control valve 40. The control unit 20 is operated by software, runs after setting parameters as required, performs self-checking and feeds back downhole information including the input motor 443 voltage of the power module, downhole temperature and pressure, the on-off state of the construction hole 41, the number of turns of the motor 443 turned to run, and the like. If necessary, the operator needs to adjust the surface power supply unit 30 to meet the use requirements of the downhole tool, and issues the execution command after confirmation. The ground controller is also responsible for storing test data, generating reports and the like, and a friendly software interaction interface is adopted, so that the stable operation of the whole system is realized.
The control unit 20 is composed of a main control computer, a PLC and a photoelectric signal converter. The current and signals are transmitted by the surface control unit 20 through the photoelectric composite cable, the downhole circuit board 446 receives the current and signals, the current enters the power module of the downhole circuit board 446, and the signals enter the control module 44 (with sensor) of the circuit board 446. The control module 44 of the circuit board 446 controls the motor 443 (with a sensor) to run, signals of the motor 443 and the control module 44 are fed back to the photoelectric composite cable, and the photoelectric signal converter is transferred to the PLC and finally displayed on the main control computer, so that the accuracy of transmission execution of control signals is judged according to the data and the switching condition of the actual underground control valve 40.
The above-described embodiments of the present invention do not limit the scope of the present invention. Any other corresponding changes and modifications made in accordance with the technical idea of the present invention shall be included in the scope of the claims of the present invention.
Claims (10)
1. A well completion fracturing construction system, comprising:
a process string for running into a completion;
the control valves are arranged on the process pipe column at intervals along the extending direction of the process pipe column, each control valve comprises a mounting cylinder, a sliding sleeve and a control module, the mounting cylinder is arranged on the process pipe column, a construction hole is formed in the surface of the mounting cylinder and is used for fracturing construction, the sliding sleeve is connected with the mounting cylinder in a sliding manner, the control module is arranged on the mounting cylinder, and the control module is used for driving the sliding sleeve to slide along the mounting cylinder to open or close the construction hole;
and the control unit is electrically connected with each control module and used for controlling the start and stop of each control module.
2. The well completion fracturing construction system according to claim 1, wherein a hydraulic cavity is arranged in the installation cylinder, two ends of the hydraulic cavity are respectively connected with the sliding sleeve and the control module, the hydraulic cavity is filled with hydraulic oil, and the control module is used for driving the sliding sleeve to slide through the hydraulic oil in the hydraulic cavity.
3. The completion fracturing construction system of claim 1, wherein a first drive chamber and a second drive chamber are disposed between the sliding sleeve and the mounting barrel at intervals along an axial direction of the sliding sleeve, the control module comprises a first control assembly and a second control assembly, and the first control assembly and the second control assembly are used for driving pressure fluid of the hydraulic chamber to alternately enter the first drive chamber or the second drive chamber.
4. A completion fracturing construction system according to claim 3, wherein said second drive chamber is an annular chamber.
5. The completion fracturing construction system of claim 3, wherein the hydraulic chamber comprises a first connecting chamber in communication with the first drive chamber and a second connecting chamber in communication with the second drive chamber, the first and second connecting chambers being connected to the first and second control assemblies, respectively.
6. The completion fracturing construction system of claim 5, wherein said second drive chamber is further in communication with said first connection chamber.
7. The well completion fracturing construction system according to claim 5, wherein the first control assembly comprises a motor, a screw rod and a transmission assembly, the motor is fixed on the mounting cylinder, one end of the screw rod is slidably connected to the first connecting cavity, the other end of the screw rod extends towards the direction of the motor, the transmission assembly is connected with the screw rod and a shaft of the motor, and the motor is used for driving the screw rod to slide along the first connecting cavity through transmission of the transmission assembly.
8. The completion fracturing construction system of claim 7, wherein the transmission assembly comprises a screw sleeve and a transmission gear, the screw sleeve is sleeved on the surface of the screw and is in threaded connection with the screw, and the transmission gear is fixed on a shaft of the motor and is meshed with the screw sleeve.
9. The completion fracturing construction system of claim 3, wherein the control valve further comprises a limit post mounted to the mounting barrel and extending to the first drive chamber for limiting rotation of the sliding sleeve, and a plunger threadably coupled to the mounting barrel and abutting the limit post.
10. The well completion fracturing construction system according to any of claims 1 to 9, wherein a connecting hole is provided on a surface of the sliding sleeve, and the sliding sleeve is connected to the construction hole by sliding along an inner wall of the installation tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310185728.5A CN116241224A (en) | 2023-02-28 | 2023-02-28 | Well completion fracturing construction system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310185728.5A CN116241224A (en) | 2023-02-28 | 2023-02-28 | Well completion fracturing construction system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116241224A true CN116241224A (en) | 2023-06-09 |
Family
ID=86629349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310185728.5A Pending CN116241224A (en) | 2023-02-28 | 2023-02-28 | Well completion fracturing construction system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116241224A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117514119A (en) * | 2024-01-03 | 2024-02-06 | 中国石油大学(华东) | Shale oil three-dimensional development fracturing device and fracturing method |
-
2023
- 2023-02-28 CN CN202310185728.5A patent/CN116241224A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117514119A (en) * | 2024-01-03 | 2024-02-06 | 中国石油大学(华东) | Shale oil three-dimensional development fracturing device and fracturing method |
| CN117514119B (en) * | 2024-01-03 | 2024-04-12 | 中国石油大学(华东) | Shale oil three-dimensional development fracturing device and fracturing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10626704B2 (en) | Intelligent switching valve for reservoir reformation and production monitoring and control and construction method therefor | |
| CN200982164Y (en) | Intelligently controlled diameter-variable stabilizer | |
| CN110805410B (en) | Intelligent sliding sleeve of bridge-plug-free multistage fracturing electric control switch | |
| CN111749663B (en) | Injection allocation device for layered injection polymerization, polymer intelligent injection system and application | |
| US20200181994A1 (en) | Coiled tubing drilling robot, robot system and process parameter control method thereof | |
| CN111648750B (en) | Underground electrohydraulic group control intelligent well completion system and self-adaptive measuring and adjusting method thereof | |
| CN116241224A (en) | Well completion fracturing construction system | |
| CN114482953B (en) | Marine thickened oil layering viscosity reduction cold production string and method | |
| CN109267962B (en) | Motor-driven compression rubber cylinder type downhole blowout preventer | |
| CN109931040B (en) | Remote intelligent control system and method for separate injection well | |
| CN108005629B (en) | Electric control hydraulic driven underground fracturing sliding sleeve | |
| CN105672960B (en) | A kind of direct-reading type down-hole oil production by layer method and its device | |
| CN104594838A (en) | Radial drilling device for oil-water well downhole casing | |
| CN211008592U (en) | Sand prevention tool for layered oil production with electromagnetic switch | |
| CN112727394B (en) | Coiled tubing hydraulic workover string and method | |
| CN112761595A (en) | Sand prevention tool for layered oil production with electromagnetic switch | |
| CN113719257B (en) | Full-drift-diameter infinite-level intelligent fracturing sliding sleeve and layered fracturing implementation method thereof | |
| CN113914835B (en) | Single pipeline control multilayer intelligent pipe column | |
| CN204266988U (en) | A kind of pilot-controlled switch sliding sleeve | |
| CN207686700U (en) | A kind of underground fracture sliding sleeve of electric control hydraulic driving | |
| CN115467907A (en) | Drilling fluid displacement controlled drill string torque transmission and separation device and method thereof | |
| CN204729006U (en) | A kind of jetting sidetracking device and down hole tool system | |
| CN115992674A (en) | Offshore oilfield multilayer real-time layered measurement and control safety production string and use method thereof | |
| CN211422611U (en) | Intelligent control separate-layer oil production well completion pipe string system | |
| CN204716201U (en) | A kind of pilot-controlled switch sliding sleeve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |