SY/T 5587.4-1993 Conventional well repair operations for oil and water wells SY/T5587.4-1993 Standard download decompression password: www.bzxz.net

Petroleum and Natural Gas Industry Standard of the People's Republic of China SY/T 5587.4—93
Oil and Water Routine Well Repair Operation
Oil Layer Casing Packer Leakage Detection Operation Procedure
1993-03-27 Issued
Ministry of Energy of the People's Republic of China
1993-09-01 Implementation
Subject Content and Scope of Application
Petroleum and Natural Gas Industry Standard of the People's Republic of China Oil and Water Routine Well Repair Operation
Oil Layer Casing Packer Leakage Detection Operation Procedure
SY/T 5587.4--93
This standard specifies the design, operation preparation, operation sequence, quality control and safety requirements for oil layer casing packer leak detection operation. This standard is applicable to the leak detection of lubricating and water well casing. Reference standards
SY/T 5587.7
Oil and water unconventional repair and well washing operation proceduresSY/T5587.8 Oil and water conventional repair and well lifting operation proceduresSY/T 5587.6
Oil and water conventional repair and well lifting operation procedures for oil pipesGlossary
When the double packer is leaking: the distance between the midpoints of the two packer rubber sleeves4Construction operation design
Construction operation design shall comply with the provisions of Appendix A (supplement). 5Operation preparation
5.1Tool and pipe string preparation
Including preparation of oil pipes, packers, chokes, screens, plugs, etc. 5.2Preparation of pipes
5.2.1Washing shall comply with the provisions of SY/T5587.7. 5.2.2Install non-pressurized pipe control equipment or pressurized pipes. 5.2.2.1 Install the non-pressurized and controlled equipment.
a: The control part of the port: including the self-sealing packer, the semi-sealed packer, the upright packer and the flange nipple b. The pressurized lifting part: including the pressurized support, the pressurized rope, the pressurized card, the segmented pressurized card and the safety slip. 5.2.2.2 The pressurization should comply with the provisions of SY/T5587.3. 5.2. The original string should comply with the provisions of SY/T5587.6. 6 Operation procedures
6.1 The measurement of the tubing should comply with the provisions of SY/T55876. 6.2 The full-length string is lowered to the designed depth.
: The structure of the single packer leak detection string H is the tubing hanger, tubing, throttle (or screen), sealer, screw plug, b. The structure of the double packer leak detection string from top to bottom is the upper tubing, packer, tubing (card spacing is specified by the design), choke (or screen), packer, and plug.
Approved by the Ministry of Energy of the People's Republic of China on March 27, 1993 and implemented on September 1, 1993
6.3 Connect the surface process.
SY/T 5587.4---93
6.3.1 Connect the cement truck water pipeline and insert the pipe mouth into the pool. 6.3.2 Connect the cement truck to the wellhead pipeline.
6.4 Start the pump and pressurize.
6.5 Maintain the pressure for 10 minutes
6.6 Check the pressure drop value.
6.6.1 If the pressure drop value is not greater than 0.5MPa, lift and lower the string, and repeat 6.4 and 6.5 until the result is found. 6.6.2 If the pressure drop value is greater than 0.5MPa, it indicates that the well section is lost. 6.7 Verify the good condition of the packer.
6.8 Stop the pump and pull out all the pipes.
7 Operation quality control and safety requirements
7.1 Quality control
7.1.1 The oil pipes and tools must be clean, without bending, deformation and damage. .12 The threads of the oil pipes and tools should be clean and tightened after applying sealing grease. 7.1.3 The water quality for leak detection should be clean and free of fibrous substances such as weeds. 7.1.4 The leak detection working pressure should be controlled according to the well depth. 7.1.4.1 When the well depth is greater than 1000m, the leak detection working pressure is a, water injection and parallel pressure increase 1215MPa
b. Oil production wellhead pressure increase 7~10MPa. www.bzxz.net
7.1.4.2 When the well depth is not more than 1000m, the leak detection working pressure is: a. Water injection and wellhead pressure 7~10MPas
b. Oil production and wellhead pressure 4~6MPa.
7.1.5 The surface process pressure test should be pressurized to 1.5 times the leak detection working pressure to be qualified. 7.2 Safety requirements
7.2.1 The operation should be smooth when lowering the pipe string, and uncontrolled lowering is strictly prohibited. 7.2.2 If a hose line is used, it should be able to withstand an internal pressure of not less than 25MPa. 8 Operation quality indicators and inspection
Operation quality indicators: The error of the leak point depth shall not exceed ±0.2m. 8.2 Quality inspection: Comprehensive analysis and inspection shall be carried out using measurement, packer and other methods. 8.3 The construction work summary shall comply with the provisions of Appendix B (Supplement). 8.4 The data collection shall comply with the provisions of Appendix C (Supplement). A1 Format of the design book for checking well construction
SY/T 5587.4—93
Appendix A
Design book for checking leaking well construction
(Supplement)
Format of the design book for checking leaking well construction: 260mm×188mm. A2 Cover format of the design book for checking well construction Leaking well construction design
Design unit,
Design:
×× Oilfield
Year/Month/Day
A3 Content format of the design book for checking well construction 1. Construction purpose
2. Oil, Water and basic phosphorus data
Completion period
Drilling depth
Tubing grid × depth
Production pressure
Casing grid × depth
Perforation thickness
Work diameter
Liquid production
Casing thickness
Effective thickness
Oil and gas ratio
Cement return height
Casing compensation distance
Diameter
Heavenly bottom
Pitong height
"Middle of oil layer
3. Well condition and pipe string before leak detection
4. Equipment preparation
5. Material preparation
2 times of the cylinder volume]
6. Construction steps
SY/T 5587.4—93
(Contents include well repair machines and their supporting equipment) Check
【Includes: clean water should be 4 times the volume of the folded well (50% of which is used for well washing), well repair fluid should be (including: moving, field, erecting well frame, well washing, pressing or installing well control equipment, starting well pipe, leak detection and completion string, finishing)
Leakage detection well construction work summary format
sY/T 5587.4--93
Appendix B
Leakage detection and construction work summary
(supplement)
Well inspection construction work summary format size, 260mm×188mm. B2
Leakage detection well construction work summary cover format
Leakage detection and construction work summary
Construction unit:
××Shan
Year
Leakage detection well construction work summary content format
I. Construction purpose
II. Oil, water and basic data
Completion target
Completion drilling depth
Oil pipe specification × depth
Production situation
Narrow section × depth
Working distance inner diameter
Liquid
Set of famous villa beans
Existing teaching thickness
Ice lake drive south
Lalie mouth diameter
Middle of oil layer
III. Brief description of the construction process
Name of the previous sequence
IV. Summary of construction experience
SY/T5587.4—93
Data collection area
SY/T 5587.4--93
Appendix C
Format of data collection table
(Supplement)
Dimensions of data collection table: 260mm×188mm. Format of data collection table
Additional instructions:
Upward lifting and deepening
Number of immersion and length
This standard was proposed and managed by the Oil and Gas Production Professional Standardization Committee. This standard was drafted by the Oil Production Technology Research Institute of Daqing Petroleum Administration Bureau. The drafters of this standard are Lu Qingchun and Gong Yaru.
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