SY 5571-1993 Cementing HeadSY5571-1993 Standard Download Decompression Password: www.bzxz.net

The People's Republic of China Petroleum and Natural Gas Industry Standard SY5571-93
Cementing Cement Head
Published on February 22, 1993
Ministry of Energy of the People's Republic of China
Implemented on August 1, 1993
Subject Content and Scope of Application
The People's Republic of China Petroleum and Natural Gas Industry Standard Cementing Cement Head
This standard specifies the basic dimensions, main performance indicators and technical requirements of cementing cement heads. This standard is used for cementing cement heads used in cementing and ice mud injection operations in petroleum and natural gas industries. Reference standards
GB9253.1 Drill pipe joint thread
GB9253.2 Petroleum casing thread
GB9253.3 Petroleum oil pipe threadwww.bzxz.net
GB5796.1~~5796.4 Trapezoidal thread
SY6307 General technical conditions for assembly of petroleum drilling and production machinery products JB/Z105-3 steel pressure vessel welding, connection process 3 Types, models and main parameters
3.1 Type
The cement head is divided into two categories according to its connection thread: drill pipe cement head and casing cement head. The drill pipe cement head is connected with the delivery drill at the wellhead, and its connection thread is the oil drill pipe joint thread. SY 5571-—93
Casing cement heads are divided into double-plug casing cement heads and single-plug casing cement heads, which are directly connected with the casing column at the wellhead, and the connection thread is the oil casing thread.
3.2 Model representation method
Nominal size, Yi III;
Working pressure, MPa;
Name code, drill pipe cement head is ZT
Double plug casing cement head is ST;
3.3 Main parameters
Single plug casing cement head is DT,
3.3.1 The main sets of drill pipe cement heads shall comply with the provisions of Table 1. Table 1
Nominal size
Working pressure
Ministry of Energy of the People's Republic of China approved the length of rubber plug
Thread code of drill pipe joint
41/2IF
Implementation on August 1, 1993
SY5571-93
The main parameters of single cold casing cement head shall comply with the provisions of Table 2. Table 2
Nominal size
Working pressure
Accommodable rubber plug length
The main parameters of the double-casing cement head shall comply with the provisions of Table 3. Table 3
Nominal size
Working pressure
Accommodable rubber plug length m
Casing thread code
7%LCSG
8%LCSG
9%—ILCSG
10%—ICSG
11—CSG
13%-ICSG
7%BCSG
8%BCSG
9%BCSG
10%BCSG
1134BCSG
13%BCS G
Casing thread code
?%LCSG
8%LCSG
9%—ILCSG
10%—ICSG
11%-ICSG
I3-ICSG
7%BCSG
8%BGSG
10BCSG
11BCSG
13%BCSG
The thread of the cementing head rubber plug joint is 2/:TBG oil pipe thread, and the thread of the cementing joint is 31/TBG oil pipe thread. The connection thread of the cementing head cover is a trapezoidal thread. When the position of the buckle and elevator is required on the drill pipe cement head, its structural dimensions shall comply with the provisions of Table 4. Table 4
ZT35-—89
ZT35—127
Diameter of the hook and hook
Length of the hook and hook
4 Technical requirements
SY5571-93
.4.1 The cement head for cementing wells shall meet the requirements of this standard and be manufactured according to the drawings and technical documents approved by the prescribed procedures. :.4.2 The mechanical properties of the materials of the cement head body, pipe joints and retaining pins shall meet the following requirements: Tensile strength
Service strength
052>750
HB207~269
.4.3 The connecting threads on the cementing well shall meet the following requirements: a: The casing thread shall meet the requirements of GB9253.2. b, the oil thread shall meet the requirements of GB9253.3. c. The thread of the staggered rod joint shall meet the requirements of GB9253.1. -4.4 The trapezoidal thread of the cement head cover shall comply with the provisions of GB5796.1~5796.4. 4.5 The rubber of various seals must be acid and alkali resistant. Oil resistant, and its physical properties shall comply with the following provisions: Shore hardness, 70~80
b, secondary long aging coefficient: (120℃×24h)=0.8℃, working temperature range [C): 35~+60.4.6 The thread of the cement head and the parallel pipe in series must be equipped with a protective joint or a quick conversion joint. .4.71
The cement head must be equipped with a pressure square balance pipe. 4.8
The stop pin must be equipped with a limit device in the fully open position. 4.9 When the double stopper pin is in the fully closed position, the gap distance between them shall not be greater than 1/2 of the diameter of the metal core of the stopper plug. 4.10 For cement heads that need to be welded, their welding shall comply with the provisions of "II. Materials 6, (1)" and "III. Welding 10, 11, 12, 13, 14, 19, 22, 30" in JB/Z105-3. 4.11 The assembly of cement heads shall comply with the provisions of Chapter 3 of SY5307. 4.12 The outer surface of the cement head shall be painted with red protective paint. Before painting, the threads shall be protected with thread guards and the stopper pins shall be fully closed. No part of the thread and the stopper pin shall be exposed. Paint the pin.
5 Test methods and inspection rules
5.1 The weld is inspected by a hydraulic seal test, and the test pressure is the working pressure. Maintain the pressure for 5 minutes, and there must be no leakage or moisture on the weld. Next.2 The cementing head must be subjected to an internal pressure strength test with clean water, and the test pressure and requirements must comply with the provisions of Table 5. 5.3 Each cementing head must be quality inspected before leaving the factory. The inspection contents are as follows: The opening and closing of the stop pin should be flexible and reliable,
Inspect each connecting thread;
Hydraulic seal test,
Water Compressive strength test.
Working force
Test pressure
The duration of Hi force shall not be less than 3min, and there shall be no leakage during this time.
SY5571--93
6 Marking, packaging, pig storage
6.1 Make permanent marks on the cementing head without clamping and without affecting the strength. The marking content is as follows: a. Product model, b. Product number or production date, c. Manufacturer name and trademark.
6.2 Cementing water The mud head can be simply packed, and the threaded parts are coated with anti-rust grease and thread protectors. G,3 Each cement head should be accompanied by the following documents: product certificate, test record, instruction manual. 6.4 The cement head should be placed vertically. When it needs to be placed horizontally, the stop pin cannot touch the ground. The storage room should be clean, dry, and ventilated, and should not come into contact with corrosive substances such as oil, alkali, and acid. Additional instructions,
This standard is under the jurisdiction of the National Technical Committee for Standardization of Petroleum Drilling Equipment and Tools. This standard is under the responsibility of the Drilling Technology Research Institute of the North China Petroleum Administration. The main drafter of this standard is Tan Zhi.
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