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GB/T 16750-2015: Electrical submersible pump units
Status: Valid GB/T 16750: Evolution and historical versions
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Electrical submersible pump units
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The types, general parameters and conjunction sizes of electrical submersible pumping equipment
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PDF similar to GB/T 16750-2015
Basic data | Standard ID | GB/T 16750-2015 (GB/T16750-2015) | | Description (Translated English) | Electrical submersible pump units | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | E92 | | Classification of International Standard | 75.780.10 | | Word Count Estimation | 75,752 | | Date of Issue | 2015-12-31 | | Date of Implementation | 2016-04-01 | | Older Standard (superseded by this standard) | GB/T 16750-2008 | | Regulation (derived from) | State Standard Announcement 2015 No.43 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | GB/T 16750-2015: Electrical submersible pump units---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Electrical submersible pump units
ICS 75.780.10
E92
National Standards of People's Republic of China
Replace GB/T 16750-2008
Submersible electric pump unit
Released on.2015-12-31
2016-04-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
China National Standardization Administration issued
Content
Foreword V
1 Scope 1
2 Normative references 1
3 Terms and Definitions 2
4 type and model 2
4.1 Submersible electric pump unit 2
4.1.1 Type 2
4.1.2 Model representation method 4
4.1.3 Submersible Electric Pump Series 4
4.2 Motor 4
4.2.1 Type 4
4.2.2 Model representation method 5
4.3 Protector 5
4.3.1 Type 5
4.3.2 Model representation method 5
4.4 Inhalation and treatment device 5
4.4.1 Type 5
4.4.2 Model representation method 6
4.5 pump 6
4.5.1 Model representation method 6
4.5.2 Pump outlet connector selection 6
4.6 Cable 6
4.6.1 Shape Feature Code 6
4.6.2 Insulation material code 6
4.6.3 Sheath (including inner sheath) material code 7
4.6.4 Armored cover code 7
4.6.5 Model representation method 7
4.7 Transformer 7
4.7.1 Type 7
4.7.2 Model representation method 8
4.7.3 Voltage 8
4.7.4 Additional windings 8
4.8 Control cabinet 8
4.8.1 Type 8
4.8.2 Model representation method 8
4.9 junction box 8
4.9.1 Type 8
4.9.2 Model representation method 9
5 Requirements 9
5.1 Submersible electric pump unit requirements 9
5.1.1 Downhole working conditions 9
5.1.2 Ground environmental conditions 9
5.2 Component Requirements 9
5.2.1 Motor 9
5.2.2 Protector 12
5.2.3 Inhalation and treatment device 12
5.2.4 Pump 12
5.2.5 Cable 14
5.2.6 Transformer 21
5.2.7 Control cabinet 22
5.2.8 junction box 22
5.3 Vibration test 23
6 Test methods and inspection rules 23
6.1 Test method 23
6.1.1 Selection of instruments and meters 23
6.1.2 Motor 23
6.1.3 Protector 34
6.1.4 Submersible electric pump unit 35
6.1.5 Cable 41
6.1.6 Cable head 50
6.1.7 Transformer 52
6.1.8 Power frequency control cabinet 57
6.1.9 Frequency conversion control cabinet 60
6.1.10 junction box 60
6.2 Inspection rules 61
6.3 Factory inspection 61
6.3.1 Motor 61
6.3.2 Protector 61
6.3.3 Inhalation and treatment device 61
6.3.4 Pump 61
6.3.5 Cable 61
6.3.6 Transformer 61
6.3.7 Control cabinet 62
6.3.8 junction box 62
6.4 Type inspection 62
7 Identification, protection, transport and storage 63
7.1 Marking 63
7.1.1 Motor nameplate 63
7.1.2 Protector nameplate 63
7.1.3 Inhalation and treatment unit nameplate 63
7.1.4 Pump nameplate 64
7.1.5 Cable nameplate 64
7.1.6 Transformer nameplate 64
7.1.7 Control cabinet nameplate 64
7.1.8 junction box nameplate 65
7.2 Protection 65
7.3 Transportation 65
7.4 Storage 66
Appendix A (informative) Calculation of the maximum axial projection size of a conventional submersible pump unit 67
Appendix B (informative) Minimum insulation resistance of common cables 68
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 16750-2008 "Submersible Electric Pump Unit". Compared with GB/T 16750-2008, the main changes are as follows.
--- According to the change of standard content, added "GB/T 528 vulcanized rubber or thermoplastic rubber pull" in "normative reference documents"
Determination of tensile stress and strain properties" and "GB 1094.11 Power Transformer Part 11 Dry-type Transformers", deleted
“GB/T 14549 Power Quality Utility Grid Harmonics” (see Chapter 2, Chapter 2 of the.2008 edition);
--- Revised the "Application of Well Temperature Grade Code for Submersible Electric Pump Units" and incorporated the "Applicable Well Temperature" section into the "Submersible Electric Pump"
Group model representation method" (see 4.1.2,.2008 editions 4.1.2 and 4.1.3);
---Modified the "model representation method" for protectors, transformers, control cabinets and junction boxes (see 4.3.2, 4.7.2, 4.8.2 and 4.9.2,
4.3.2, 4.7.2, 4.8.2 and 4.9.2 of the.2008 edition;
--- The pump, protector and suction and treatment devices that are routinely matched with the YQY116 motor have been added to the 101 and 102 series (see Table 1);
--- Change the type of transformer from "three oil immersed" to "three phase transformer" (see 4.7.1, 4.7.1 of.2008 edition);
---Modified and improved "cable specifications, basic parameters" (see Table 7, Table 7 of the.2008 version);
--- Improved the "standard value of DC resistance of conductors at 20 ° C" (see Table 11, Table 11 of the.2008 edition);
--- Change the "cable head sealing performance factory test in normal temperature water," change to "the cable head should have good sealing performance,
Under the pressure of 0.35MPa, keep the test for 5min and should not leak. (see 5.2.5.12, 5.2.5.12 of the.2008 edition);
---Modified "Cable insulation, sheath thickness and tolerance" (see Table 20, Table 20 of the.2008 edition);
--- Revised the "Technical Specifications for Temperature Rise of Transformer Windings" (see Table 21, Table 21 of the.2008 edition);
---Modified the requirements of transformer "safety protection device" and "oil temperature measuring device" (see 5.2.6.5 and 5.2.6.6,.2008 edition)
5.2.6.5 and 5.2.6.6);
--- Change the "fixed frequency control cabinet" to "power frequency control cabinet" (see 5.2.7.1, 6.1.8 and Figure 19,.2008 editions of 5.2.7.1, 6.1.8 and
Figure 20);
---Modified the function of the power frequency control cabinet (see 5.2.7.1.3, 5.2.7.1.3 of the.2008 version);
---Modified the technical requirements of the "inverter control cabinet" (see 5.2.7.2.2 and 5.2.7.2.4, 5.2.7.2.2 and 5.2.7.2.4 of the.2008 version);
---Modified "Cable withstand voltage test wiring diagram", "Cable 4h high voltage inspection wiring diagram", "Cable leak inspection wiring diagram", "Outside cable
"Withstand voltage test wiring diagram" and "fixed-frequency control cabinet main circuit power frequency withstand voltage test wiring diagram" (see Figure 14, Figure 15, Figure 16, Figure 17
And Figure 19, Figure 15, Figure 16, Figure 17, Figure 18 and Figure 20);
--- Revised the "measurement requirements" for "mechanical properties of cable insulation and sheathing materials" (see 6.1.5.6.1, 6.1.5.6.1 of the.2008 edition);
---Modify "cable tensile strength" to "cable tensile strength" (see 6.1.5.6.3, 6.1.5.7.3.1 and 6.1.5.7.4,.2008 edition)
6.1.5.6.3, 6.1.5.7.3.1 and 6.1.5.7.4);
--- Revised the "meaning of the symbol in the cable tensile strength calculation formula" (see 6.1.5.6.3, 6.1.5.6.3 of the.2008 edition);
--- Revised the "method for measuring the sealing performance of cable ends" (see 6.1.6.1.2, 6.1.6.1.2 of the.2008 version);
---Modified the measurement requirements and measurement methods of the power frequency withstand voltage of the main circuit of the power frequency control cabinet (see 6.1.8.3.1.1 and 6.1.8.3.2.1,
6.1.8.3.1.1 and 6.1.8.3.2.1) of the.2008 edition;
---Modified the "Measurement Method for Simulation Operation of Power Frequency Control Cabinet" (see 6.1.8.5.2.2, 6.1.8.5.2.3 and 6.1.8.5.2.5,.2008 Edition)
6.1.8.5.2.2, 6.1.8.5.2.3 and 6.1.8.5.2.5);
--- Combine "6.4 Type Inspection Prerequisite" and "6.5 Type Inspection Item" into "6.4 Type Inspection", change 6.4 and 6.5 respectively
For 6.4.1 and 6.4.2, change 6.5.1~6.5.7 to 6.4.2.1~6.4.2.7 and 6.5.8 to 6.4.3 (see 6.4,
6.4, 6.5) of the.2008 edition;
---In the "nameplate" of motors, protectors, suction and treatment devices, pumps, cables, transformers and control cabinets, the contents of the "site" have been added.
(see 7.1.1, 7.1.2, 7.1.3, 7.1.4, 7.1.5, 7.1.6 and 7.1.7);
--- Added "junction box nameplate" requirements in the "identification" (see 7.1.8);
--- Revised the "protection requirements for submersible pump units" (see 7.2.2, 7.2.3 and 7.2.4,.2008, 7.2.2, 7.2.3 and 7.2.4);
--- Revised the "Storage Requirements for Motors, Protectors and Control Cabinets" (see 7.4.1 and 7.4.4,.2008, 7.4.1, 7.4.2 and 7.4.5).
This standard is proposed and managed by the National Petroleum Drilling Equipment and Tools Standardization Technical Committee (SAC/TC96).
This standard was drafted. Daqing Oilfield Lishen Pump Co., Ltd., Shengli Oilfield Shengli Pump Co., Ltd., National Electric Submersible Pump
Quality Supervision and Inspection Center, Bohai Petroleum Equipment (Tianjin) Zhongcheng Machinery Manufacturing Co., Ltd., China National Offshore Oil (China) Co., Ltd. Tianjin Branch
the company.
The main drafters of this standard. Li Bin, Wang Wei, Zheng Gui, Zhou Maoqun, Zhang Hongcheng, Fu Mingsen, Zhang Tiegang, Shi Zhongwu, Wang Zhaolan, Du Xiangzhi,
Pang Xiangdong, Wang Nianxing, Sun Liangwei, Wang Weijun, Chen Hong, Zhou Huailiang.
The previous versions of the standards replaced by this standard are.
---GB/T 16750.1-1997;
---GB/T 16750.2-1997;
---GB/T 16750.3-1997;
---GB/T 14816-1993;
---GB/T 16750-2008.
Submersible electric pump unit
1 Scope
This standard specifies the type, basic parameters, technical requirements, assembly requirements, test methods and signs, packaging, transportation and
Store. Submersible electric pump unit includes submersible motor (referred to as motor), motor protector (referred to as protector), suction and treatment device, submersible pump (simplified
Pump), submersible cable (referred to as cable), submersible electric pump special control cabinet (referred to as control cabinet), submersible electric pump special transformer (referred to as transformer) and
Special junction box for submersible electric pump (referred to as junction box).
This standard applies to the design, manufacture, testing and acceptance of submersible electric pump units.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 191 packaging storage and transportation pictorial signs (GB/T 191-2008, ISO 780.1997, MOD)
GB/T 528 Determination of tensile stress-strain properties of vulcanized rubber or thermoplastic rubber
GB 1094.1 Power transformers Part 1 General
GB 1094.2 Power transformer part 2 temperature rise
GB 1094.3 Power transformers - Part 3. Insulation level, insulation test and external insulation air gap
GB 1094.5 Power transformer part 5 ability to withstand short circuit
GB 1094.11 Power transformers Part 11 Dry-type transformers
GB/T 2900.1 Basic terminology of electrical terminology
GB/T 2900.15 Electrotechnical terminology transformers, transformers, voltage regulators, reactors
GB/T 2900.25 Electrotechnical term rotary motor
GB/T 3797-2005 electrical control equipment
GB 3836.1 Explosive atmosphere - Part 1. General requirements for equipment (GB/T 3836.1-2010, IEC 60079-0.2007,
MOD)
GB 3836.3 Explosive atmosphere - Part 3. Equipment protected by an increased safety "e" (GB/T 3836.3-2010, IEC 60079-7.
2006, IDT)
GB/T 6451 three-phase oil-immersed power transformer technical parameters and requirements
GB/T 8423 oil drilling equipment and special pipe vocabulary
GB/T 12668.1 Speed control electric drive systems - Part 1. General requirements
Regulations (GB/T 12668.1-2002, IEC 61800-1.1997, IDT)
GB/T 12668.2 Speed control electric drive system Part 2 General requirements Low-voltage AC variable frequency electric drive system rating
Regulations (GB/T 12668.2-2002, IEC 61800-2.1998, IDT)
GB 12668.3 Speed control electric drive system Part 3 Product electromagnetic compatibility standards and their specific test methods
(GB 12668.3-2012, IEC 61800-3.2004, IDT)
GB/T 12668.4 speed control electric drive system part 4 generally requires AC voltage above 1000V but not exceeding
35kV AC speed control electric drive system rating (GB/T 12668.4-2006, IEC 61800-4.2002, IDT)
GB/T 17389 Application of Submersible Electric Pump Cable System
GB/T 18050 submersible electric pump cable test method
GB/T 18051-2000 Submersible electric pump vibration test method
SY/T 5313 Drilling Engineering Terminology
SY/T 6598 Submersible Electric Pump Protector Use and Inspection Recommended Practice
SY/T 6599-2004 Submersible electric pump centrifugal pump test recommended practice
JB/T 5331 polyimide/fluorine 46 wrapped copper round wire
3 Terms and definitions
GB/T 2900.1, GB/T 2900.15, GB/T 2900.25, GB/T 8423, GB/T 17389, GB/T 18050, SY/T 5313,
The following terms and definitions defined by SY/T 6598 and SY/T 6599 apply to this document.
3.1
Protector dynamic test operatingtestoftheprotector
After the protector is oiled, the no-load mechanical loss test is performed at the specified power frequency.
3.2
Protector mechanical loss mechanicallossoftheprotector
When the protector is in operation, the mechanical friction loss of the internal thrust bearing, mechanical seal and other components is summed.
3.3
Intake intake
A device that connects a downhole fluid to a pump lumen.
3.4
Gas processor assistanthandlingdevice
Submersible electric pump is used in downhole equipment for gas wells. It can change the state of the gas contained in the well fluid.
3.5
Shaft head size jointsize
The dimensions of the shaft end and the joint flange face required for the submerged oil pump's downhole components.
3.6
Disk shaft torque runningtestingtorque
The downhole components of the submersible electric pump are assembled and placed horizontally, and the torque value measured by a special torque wrench is used.
3.7
Rotor taxiing time slidingtimeofthemotorrotors
After the no-load test of the submersible motor, the time from the start of the power failure to the complete stop of the motor shaft.
3.8
The maximum axial projection size of the unit themaximumO.D.ofthetotalunit
The maximum diameter of the submersible pump unit installed correctly, including downhole units, cables, cable guards, etc.
4 type and model
4.1 Submersible electric pump unit
4.1.1 Type
Drive mode. motor drive.
Working style. continuous working system.
The schematic diagram of the conventional installation of the submersible electric pump unit is shown in Figure 1.
Description.
1---centralizer;
2---sleeve;
3---motor;
4---protector;
5---Inhalation and treatment device;
6--- cable shield;
7---pump;
8---pump outlet connector;
9---lead cable;
10---oil pipe;
11---single flow valve;
12---Drain valve;
13---Power cable;
14---ground cable;
15---wellhead device;
16--- junction box;
17---control cabinet;
18---Transformer.
Figure 1 Schematic diagram of the installation of submersible pump unit
4.1.2 Model representation method
QYDB □-□/□ □
Applicable well temperature code
Rated head, m
Rated displacement, m3/d
Maximum axial projection size of the unit, mm
Submersible electric pump code
Note 1. Refer to Appendix A for the calculation method of the maximum axial projection size of the submersible pump unit.
Note 2. The applicable well temperature of the submersible pump unit is divided into four grades.
The well temperature grade code is.
---90 ° C, denoted by A;
---120 ° C, denoted by B;
---150 ° C, denoted by C;
---180 ° C, denoted by D.
Example. rated displacement.200m3/d, rated head 1500m, suitable for well temperature 120 ° C, the maximum axial projection size of 152mm submersible pump is expressed as.
QYDB152-200/1500B.
4.1.3 Submersible electric pump series
The series of conventional submersible electric pumps should meet the requirements of Table 1.
Table 1 Common Submersible Electric Pump Series
Conventional submersible pump series
Motor pump protector suction and treatment device
Suitable for minimum casing
Mm/(in-lb/ft)
95/98 86/88 86/88 86/88 φ127.00/(5-18)
107 95/98 95/98 95/98 φ139.70/(51/2-23)
114 98/101/102 98/101/102 98/101/102 φ139.70/(51/2-20)
116 98/101/102 98/101/102 98/101/102 φ139.70/(51/2-20)
138 130 130 130 φ168.28/(65/8-24)
143 130 130 130 φ177.80/(7-32)
185/188 172 172 172 φ244.48/(95/8-75)
Note 1. The numbers in the left, second, third, and fourth columns in the table are nominal outer diameters in millimeters.
Note 2. The series of unconventional submersible electric pumps are matched according to the agreement.
4.2 Motor
4.2.1 Type
Three-phase squirrel cage asynchronous motor.
4.2.2 Model representation method
YQY □-□ □-□
Feature code. GX-high efficiency type; FF-anti-corrosion type; GZ-high load
Location code. D-single section; S-upper section; T-universal section; X-lower section
Power, kW
Motor series
Motor code
Feature code. It is represented by letters. When there are multiple features coexisting, the corresponding multiple feature codes can be used, and the feature code is left oblique.
Separated by bars.
Example. The 114 series upper section and the anti-corrosion type high load bearing motor with a power of 45kW are shown as YQY114-45S-FF/GZ.
4.3 protector
4.3.1 Type
Divided by structure.
a) precipitation type;
b) Capsule type.
4.3.2 Model representation method
QYH □ □/□-□
Feature code. FF-anti-corrosion type; FS-sand-proof type; GZ-high load bearing; GW-high temperature
Location code. S-upper section; X-lower section
Structure. C-precipitation; J-capsule
Protector series
Protector code
Feature code. It is represented by letters. When there are multiple features coexisting, the corresponding multiple feature codes can be used, and the feature code is left oblique.
Separated by bars.
Example. The 130 series capsule type anti-corrosion type high load upper protection device for submersible electric pump unit is expressed as. QYH130J/S-FF/GZ.
4.4 Inhalation and treatment device
4.4.1 Type
Divided by structure.
a) a separator;
b) the suction inlet;
c) Gas processor.
4.4.2 Model representation method
QYX □ □-□
Feature code.
HZ-with guard type; SJ-two-stage series; FS-sand type;
FF-anti-corrosion type; GX-high efficiency type; C-sedimentation type; X-rotary type
Structure. F-separator; K-suction port; Q-gas processor
Inhalation and treatment device series
Inhalation and treatment device code
Feature code. It is represented by letters. When there are multiple features coexisting, the corresponding multiple feature codes can be used, and the feature code is left oblique.
Separated by bars.
Example. The 98 series rotary sand control type separator for submersible electric pump unit is expressed as. QYX98F-X/FS.
4.5 pump
4.5.1 Model representation method
QYB □-□/□ □-□
Feature code.
FS-anti-corrosion type; FF-anti-corrosion type; XJ-inclined well;
FG-anti-scaling type; CY- heavy oil
Location code. S-upper section; T-universal section; X-lower section
Rated head, m
Rated displacement, m3/d
Pump series
Pump code
Feature code. It is represented by letters. When there are multiple features coexisting, the corresponding multiple feature codes can be used, and the feature code is left oblique.
Separated by bars.
Example. The 98 series sand-proof and anti-corrosion type upper pump with rated displacement of 250m3/d and rated head of 500m is expressed as. QYB98-250/500S-FS/FF.
4.5.2 Pump outlet connector selection
Pump outlet joints are available with different tubing sizes and internal threads according to user requirements.
4.6 cable
4.6.1 Shape feature code
Shape feature code representation method.
a) round, indicated by Y;
b) Flat, omitted.
4.6.2 Insulation material code
Insulation material code representation method.
a) polypropylene (including modified polypropylene), denoted by P;
b) Ethylene-propylene rubber, denoted by E;
c) cross-linked polyethylene, denoted by YJ;
d) Polyimide-F46 composite film/ethylene propylene rubber combined insulation, denoted by YE;
e) Polyimide-F46 composite film/polyfluoroethylene propylene combination insulation, expressed in YF.
4.6.3 Sheath (including inner sheath) material code
The sheath material code representation method.
a) lead (lead alloy), denoted by Q;
b) Ethylene-propylene rubber, denoted by E;
c) chlorosulfonated polyethylene, denoted by H;
d) a nitrile-polyvinyl chloride complex, denoted by F;
e) Nitrile rubber, indicated by N.
4.6.4 Armored cover code
Armored sheath code representation.
a) Monel steel belt armor, using M (different specifications of Monel steel belt can be used M1, M2, Mn respectively);
b) galvanized steel tape armor, omitted;
c) Stainless steel tape armor, indicated by X (stainless steel strips of different specifications can be X1, X2, Xn respectively).
4.6.5 Model representation method
QY □ □ □ □ □-□/□
Temperature class
Core wire × section, mm2
Rated voltage, kV
Shape feature code
Armored cover code
Inner sheath code
Insulation code
Cable code (lead cable is indicated by QYJ)
Temperature class. The maximum operating temperature of the conductor is divided into 90 ° C (90), 120 ° C (120), 150 ° C (150), 180 ° C (180), 204 ° C
(204).
Example 1. Rated voltage 3kV, polypropylene insulation, nitrile rubber inner sheath, Monel steel belt armored 3×16mm2 conductor maximum working temperature 90°C flat diving
Oil cable, expressed as. QYPNM3-3×16/90.
Example 2. Rated voltage 6kV, ethylene-propylene rubber insulation, ethylene-propylene rubber sheath, galvanized steel tape armored 3×20mm2 conductor maximum working temperature 120°C circular diving
The oil cable is expressed as. QYEEY 6-3×20/120.
Example 3. Rated voltage 6kV, polyimide-F46 composite film/ethylene-propylene rubber combined insulation, lead inner sheath, Monel steel tape armored 3 × 10mm2 conductor most
The cable with a high operating temperature of 120 °C is indicated as QYJYEQM6-3×10/120.
4.7 Transformer
4.7.1 Type
Three-phase transformer.
4.7.2 Model representation
QYSS □ □ □-□/□
Secondary voltage, kV
Primary voltage, kV
Capacity, kVA
Oil immersion (omitted); C-dry
Transformer design serial number, the number is 9, 10, 11, the greater the number represents the transformer itself
Lower loss
Transformer code
Example. Design a serial number of 9, a capacity of 100kVA, a primary voltage of 6kV, a secondary voltage of 1.5kV, a three-phase oil-immersed three-coil transformer for a submersible electric pump is expressed as.
QYSS9100-6/1.5
4.7.3 Voltage
The primary voltage of the transformer should be suitable for the local power grid conditions, and the secondary voltage should be multi-speed to compensate for the voltage drop of the submersible cable under different pumps.
4.7.4 Additional winding
Additional windings can be added to the transformer when required by the user.
4.8 Control cabinet
4.8.1 Type
High pressure or low pressure.
4.8.2 Model representation
QYK □ □-□
Rated current, A
Rated voltage, kV
Feature code. SN-indoor; SW-outdoor; HP-offshore platform; BP-inverter
Control cabinet code
Example. Rated current 60A, rated voltage 3kV Indoor submersible electric pump dedicated control cabinet is expressed as. QYKSN3-60.
4.9 junction box
4.9.1 Type
Outdoor high pressure type.
4.9.2 Model representation
JXH □ □-□
Rated current, A
Rated voltage, kV
Feature code. ordinary (omitted); H-off platform; S-desert
Junction box code
Example. The junction box for offshore submersible electric pump with rated current 60A and rated voltage of 3kV is expressed as. JXHH3-60.
5 requirements
5.1 Submersible pump unit requirements
5.1.1 Downhole working conditions
The working conditions in the underground are shown in Table 2.
Table 2 Downhole working conditions
Environmental factors technical indicators remarks
Downhole ambient temperature/°C 90,120,150,180 greater than 180 °C according to the agreement
Pump suction port fluid viscosity/(mm2/s) ≤ 7 When the well fluid viscosity is greater than 7mm2/s need to be corrected, according to the agreement
Pump suction gas-liquid ratio GLR ≤ 0.3 is greater than 0.3 when executed according to the agreement
When the submersible electric pump is working, the motor casing well fluid flow velocity v/(m/s) ≥0.3 is less than 0.3 when executed according to the agreement.
When the sand content in the well fluid/(g/m3) ≤ 500 is greater than 500g/m3, according to the agreement
Full-angle rate of change/(°/30m) ≤ 3 When more than 3 °/30 m, according to the agreement
Corrosive gases are not available, executed according to the agreement
Nothing to do, according to the agreement
5.1.2 Ground environmental conditions
The ground environment should meet the following conditions.
a) Ambient temperature. -40 ° C ~ 40 ° C;
b) Relative humidity. the annual average is not more than 85%;
c) the altitude does not exceed 1000m;
d) When the ground environment conditions are special, follow the agreement between the manufacturer and the user.
5.2 Component Requirements
5.2.1 Motor
5.2.1.1 It should have good sealing performance. Under the pressure of 0.35MPa, keep the test ...
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