SY/T 5587.17-1993 Procedure for fishing ropes and other objects in routine well repair work for oil and water wells
Some standard content:
Petroleum and Natural Gas Industry Standard of the People's Republic of China SY/T5587.17--93
Oil and Water Routine Well Repair Operation
Operation Procedure for Retrieving Rope and Other Objects
Published on September 9, 1993
China National Petroleum Corporation
Implemented on March 1, 1994
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
Operation Procedure for Retrieving Rope and Other Objects
SY/T5587.17--93
This standard specifies the preparation and operation procedures for retrieving steel wire, wire rope and electric relay. Quality control and safety requirements. This standard applies to retrieving rope and other objects in vertical well casing. It can also be used as a reference for retrieving rope and other objects in oblique wells. 2 Reference standards
SY/T5587.6 Conventional well repair operation for oil and water wells, operation procedures for pulling in and out the tubingSY/T5587.7 Conventional well repair operation for oil and water wells, operation procedures for washing wellsSY5208
3 Operation design
Traveling block hook for well repair
3,1 Prepare the operation design according to the situation of falling objects and the specific requirements of falling objects such as salvage ropes. 3.2 The design content and format shall comply with the provisions of Appendix A (Supplement). 4 Operation preparation
4.1 Preparation of tools and tubing
4.1.1 The selection of salvage tools shall be based on the situation of falling objects inside the casing, and conventional salvage tools shall be preferred. The outer diameter of the salvage tools shall be determined by the inner diameter of the casing, and a tool sketch shall be drawn.
4.1.2 When using inner and outer hooks to salvage rope-like objects, there should be a retaining ring on the upper part, the thickness of which is less than 20mm, and the outer diameter is about 6mm smaller than the inner diameter of the casing.
4.1.3 Preparation of tubing. Prepare the oil pipe (drilling sweat) according to the design requirements. 4.2 Preparation of well string
4.2.1 Well killing and well repairing fluids must meet the technical requirements of salvage and meet the requirements of protecting the oil layer. 4.2.2 Well washing should comply with the provisions of SY/T6587.7. 4.2.3 According to the situation of objects falling inside the riser, use the estimation method or soft exploration method to predict the depth of the top of the objects. 5 Operation process
5.1 The structure of the tubing string from bottom to top is the salvage tool, safety joint, upper impactor, and tubing string. 5.2 The lowering of the salvage tubing string must comply with the provisions of SY/T 6587.B. 5.3 The salvage pipe string is lowered to the top of the predicted falling object at a depth of about L100m, and the lowering speed is controlled at 1020m/min. At the same time, it should be rotated slowly in the direction of the thread tightening, and attention should be paid to the changes in the weight indicator. 5,4 When the suspended weight is displayed to be reduced, the pipe string should be stopped immediately, and the thread tightening direction should be rotated 3 to 10 times (the number of turns can be appropriately increased according to the depth) and then the pipe string should be lifted up by 10 to 30m to observe whether the suspended weight increases. If there is no increase, the depth can be increased by 10 to 15m each time and continue to salvage. 5.5 Remotely deepen the salvage until the pressure is about 5kN, and the pipe string can be lifted after salvage. If it is not salvaged in one time, it should be repeated until all the fallen objects are salvaged.
Approved by China National Petroleum Corporation on September 9, 1993, implemented on March 1, 1994
SY/T 5587.17—93
5.6 If the rope-like objects have been compacted and cannot be salvaged with hook-like tools, the compacted part can be salvaged with a milling pipe, and then the procedures of 5,3 to 5,6 can be followed.
6 Operation quality control and safety requirements
6 1 Quality control
6.1.1 The size and combination of the tools and pipe string should be recorded and schematically shown. 6.1,2 If the milling tool is used, avoid damaging the casing. 6.1.3 The length of the objects salvaged must be measured. If it cannot be measured, it should be washed clean and weighed, and then the length should be calculated. 6.2 Safety requirements
6.2.1 A weight gauge (tensile gauge) that meets the standards must be installed during salvage. 6.2.2 The traveling block and skyhook shall comply with the provisions of SY6208. Well control equipment shall be installed for lifting and lowering operations. Before lowering the pipe string, the lifting and carrying tools and pipe string must be carefully checked, and they can only be lowered if they meet the design requirements. 6.2.3
When lifting and carrying ropes, the method of slow lowering, gradually deepening, and multiple times of micro-pressure salvage must be adopted. 624
, when the fallen objects have been salvaged, the pipe string shall not be lowered. 6.2.6
Before salvaging and recording the steel wire, the soft exploration of the top of the fallen object and the trial salvage method can be used. 6.2.7#
Soft exploration of the top of the fallen object to determine the depth must be directed by a dedicated person. The lifting and lowering of the pipe string operation must comply with the provisions of SY/T5587.6. 6.2.8
7 Quality standards and inspection
7.1 Quality standards
7.1.1 The operation meets the design requirements.
7.1.2 The tools used should avoid damaging the casing. 7.1.3 The repair fluid used should not only meet the technical requirements of the operation, but also protect the oil layer and prevent oil pollution. 7.1.4 Data and information are collected and recorded accurately. The content includes the model and specifications of the salvage tool, the structure and size of the pipe string, and the name of the repair fluid. Density, quantity, pump pressure, well washing depth, displacement; driving depth, number of rotations; the quality of the salvaged objects, and the operation time. 7.1.5 The content and format of the operation record shall comply with the provisions of Appendix B (Supplement). 7.2 Quality Inspection
The drilling can be smoothly passed to the artificial bottom or the designed depth. The content and format of the operation summary shall comply with the provisions of Appendix C (Supplement). 2
Format size
SY/T 5587.17--93
Appendix A
Content and format of the design book for salvaging small-sized fallen objects (supplement)
Use 880mm×1230mm paper 1B format. A2 format and content
A2.1 Cover format
Design of salvaging small-sized fallen objects
Operation unit
A2.2 Content format
I. Basic data
Oil layer casing
(Inner diameter, mm)
Artificial bottom, m
Perforated layer
Oil well profile
Static pressure, MPa
Pressure coefficient
Length, m
3. Integrity of oil well casing and previous operations 4. Time, process and cause of falling objects 5. Salvage
Measures before salvage
Design parameters
Drilling pressure, kN
Number of medical parameters, circle
Salvage depth, m
SY/T5587.17---93
Complete drilling depth, tan||tt ||Cement return depth, twist
Oil compensation distance, m
Total section of perforation, m
Oil, t/d
Hydrogen radical content, mg/l.
Inner pipe string
Depth, m
Number of salvage, times
Equipment and material preparation
Drilling equipment
Salvage tools
Upper hammer
VI. Operation steps
Name of repair and merging fluid
Replacement of control device
Pulling out the original well pipe string
min.Pump pressure
min, quantity
Lowering the salvage pipe string combination (from bottom to top)SY/T 5587.17—93
Anhui joint
Repair fluid
g/cm\, quantity
MPa, displacement
Fishing tool m, safety joint m, upper impactor—m, pipe string hitting
Fishing depth
m, rotation circle in the direction of thread tightening, drilling pressure times, length of salvaged objects
Removing salvage pipe string
Well clearance rulesbzxz.net
Washing method
m, all mountains.
_m\/min, time
VII. Approval opinion
mm, well clearance depth
Repair and well washing, density
m\, well area
m°/min.
kN, lifting pipe
g/cm depth
m, pump pressure.
_m, number of strokes
MPa, row
format size
SY/T 5587.17—93
Appendix B
Record of fishing rope-like objects
(supplement)
Use 880mm×1280mm paper 18-page format. B2 Format and content
Record of salvage operation of salvage group
Casing of the upper layer
(Inner diameter, mm)
Salvage tools
Number of salvage, times
Operation description
Operation date
Rubbing time
Density, mg/cm2
Quantity,"
Recorder
C1 Format size
sY/T 5587,17—93
Appendix C
Summary of salvaging rope-like fallen objects
(supplement)
Use 880mm×1290mm paper in 16K format. C2 Format and Content
Cover Format
Summary of the Operation of Removing Falling Objects from the Rope
Operation Unit
C2.2 Content Format
Basic Data
Oil Layer Casing
(Inner Diameter,)
Artificial Bottom, Ⅱ
Perforation Layer
III. Brief Description of Operation
IV. Conclusion and Suggestions
Additional Notes:
SY/T 5587.17—93
Completion Drilling Depth, m
Cement Return Depth, m
Oil Compensation Distance, Blood
Perforation Well Section, m
This standard is proposed and managed by the Oil and Gas Production Professional Standardization Committee. This standard is drafted by the Downhole Operation Company of the North China Petroleum Administration. The main drafter of this standard is Chen Miaoxiong.
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