SY/T 5612.1-1999 Drilling fluid purification system degasser SY/T5612.1-1999 standard download decompression password: www.bzxz.net

ICS 75.180.10
Registration number: 3093—1999
Petroleum and natural gas industry standard of the People's Republic of China SY/T 5612.11999
Drilling fluid purification system
Degasser
Solid control system for drilling fluid---degasserPublished on 1999-05-17
State Bureau of Petroleum and Chemical Industry
Implementation on 1999 —12 -01
SY/T 5612.1--1999
This standard is revised on the basis of SYT5G12.1-93 "Drilling fluid degasser" after summarizing the production and use of drilling fluid degassers in recent years. Compared with SY/T5612.1-93, the following major changes have been made: the obsolete (1336 and JB8, as well as nine industry standards such as SY5301~SY5309) have been deleted from the cited standards, and (GH/I13384-1992 "General Technical Conditions for Packaging of Mechanical and Electrical Products" and GB150-1998 "Steel Pressure Vessels" have been added. In the product naming method, the atmospheric degasser code DCQ has been added, and the vacuum degasser is still represented by ZCQ. The main parameter of the product has been changed to the processing capacity per hour (m/h), and a code to distinguish the structural characteristics has been added after the model. The contents of SY/T5612.1-93 on materials, purchased parts, painting, and supporting scope have been deleted, and the vacuum degree and noise production indicators have been appropriately adjusted. The degasser efficiency formula in Appendix A of SYT5612.1-93 has been revised, and the original degassing efficiency test record has been deleted. This standard was first issued in October 1989 and adjusted to an industry standard in 1993. Only the standard number GB/T11645--89 was changed to SYT5612.1-93, but the industry standard text was not formed. From the date of entry into force, this standard will temporarily replace SY/T5612.1-93. This standard was proposed and managed by the National Technical Committee for Standardization of Oil Drilling Equipment and Tools. The drafting unit of this standard: Baoji Petroleum Machinery Plant. The main drafters of this standard are Kong Dexiang, Liu Yindun, Ma Zhonghai
1 Scope
Petroleum and Natural Gas Industry Standard of the People's Republic of China Degasser for Drilling Fluid Purification System
Solid cantrol system far drilling fluid-degasserSY/T 5612.1---1999
Replaces SY/ 5612.1—93
This standard specifies the classification and naming, requirements, test methods, inspection rules, marking, packaging and storage of degassers for drilling and far drilling fluid purification systems (hereinafter referred to as degassers).
This standard applies to the design, manufacture and inspection of degassers for oil and natural gas drilling projects. 2 Cited standards
The provisions contained in the following standards constitute the provisions of this standard before being cited in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB 150—198 Pressure vessels
CB3836.1-1983 General requirements for explosion-proof electrical equipment for explosive atmospheres (GB13306-1999 Signs
GB/13384-1992 General technical conditions for packaging of electromechanical products 3 Definitions
This standard uses the following definitions.
3.1 Vacuum degasser
A degasser that uses the vacuum principle to degas.
3.2 Atmospheric degasser
A degasser that degases under normal pressure.
3.3 Centrifugal degasser
A degasser that degases using centrifugal force.
3.4 ​​Diverter degasser
A degasser that degases by making the gas and liquid form a turbulent thin layer on the inclined diverter plate in the vacuum tank of the degasser. 3.5 Jet-type degasser
A degasser that uses the jet crushing principle to degas. 3.6 Degassing efficiency
The ratio of the gas removed by the degasser to the gas invading the drilling fluid. 4 Classification and naming
4.1. Classification
4.1.1 Degassers are divided into two categories: vacuum degasser and atmospheric degasser. 4.1.2 Degassers can be divided into split-flow type, jet type and centrifugal type according to their structural characteristics. 4.2 Naming
The degasser model is indicated as follows: Approved by the State Bureau of Petroleum and Chemical Industry on May 17, 1999, and implemented on December 1, 1999
SY/T5612.1-1999
Structural feature code: F for split flow type, P for jet type, L for centrifugal type Main parameter: Indicated by drilling fluid treatment per hour (m3/h) Product code: ZCQ for vacuum type, DCQ for atmospheric type Naming example: Vacuum split flow type, drilling fluid treatment capacity is 240m2/h, then the product model of the degasser is ZCQ240F: Atmospheric jet type, drilling fluid treatment capacity is 240m3/h, then the product model of the degasser is LCQ240P. 4.3 Basic parameters
The basic parameters of the degasser shall comply with the provisions of Table 1. Table 1
Vacuum type
Model setting
Atmospheric type
Nominal processing capacity
Processing tank volume
5 Requirements
Split flow type
Injection type
Injection type
ZCO120Www.bzxZ.net
DCQ120
ZCQ180
LCQI80
zCQ240
IXCQ240
zCQ300
1CQ300
5.1 The allowable deviation of the drilling fluid processing capacity of the degasser shall not exceed ±10% of the nominal value in Table 1. When the vacuum degree is higher than 310+0.2 (cm) water column (D. is the nominal diameter of the vacuum catalyst, in m), the design and manufacture of the vacuum tank shall comply with the current regulations of (R 150). The vacuum degree of the vacuum degasser shall comply with the provisions of Table 2. Table 2 Split flow type Spray type>40 - 50>30~ 405.4 The vacuum pumping time of the vacuum degasser should be less than 30s for the first level, less than 45s for the second level, and less than 60s for the third level. The noise of the degasser shall comply with the provisions of Table 3. 5.5>30 - 40>20 ~ 30 Vacuum split flow type Vacuum spray type and atmospheric type SY/T 5612.11999
>B0 ～85
>B5~90
5.6 The degassing efficiency of the degasser shall comply with the provisions of Table 4. Table 4
Vacuum type
Atmospheric type
>B5~ 90
dB (A)
>85~90
>90~95
>80~85
>70～75
5.7 Parts that come into contact with drilling fluid for a long time should be made of anti-corrosion materials, or the parts should be subjected to surface anti-corrosion treatment. 5.8 The exhaust of the degasser is not allowed to discharge a large amount of dripping liquid. The dripping volume of the exhaust pipe should be less than 80ml/h for the first level, less than 18Uml/h for the second level, and less than 300ml/hz for the third level
5.9 All joints of the degasser should be well sealed and no leakage should be allowed. 5.10 The electrical components of the degasser should comply with the provisions of GB3836.1. Test methods and inspection rules
6.1 Factory inspection
The sealing inspection of the vacuum tank and the operation test of the degasser should be carried out for each unit. 6.1.1 Vacuum tank sealing inspection method||t t||The vacuum devices designed and manufactured according to GB15n shall be subjected to sealing internal pressure test one by one. The test medium is clean water, the test pressure is 200kPa, and the pressure is maintained for 30 minutes. There shall be no leakage in the welds and seals. 6.1.2 Degasser operation test
6.1.2.1 Test method
Place the degasser on the test tank, the test tank is clean water medium, start the degasser and run it continuously for 90nilo6.1.2,2 Inspection items
a) The degassing volume shall comply with the provisions of Table 1, and the error shall not exceed the provisions of 5.1: b) There shall be no looseness at all joints;
c) The moving parts shall be stable and normal, and there shall be no abnormal sound; d) The vacuum time shall comply with the provisions of 5.4;) The vacuum degree shall comply with the provisions of 5.3;
[The performance of the liquid-gas separation mechanism shall comply with the provisions of 5.8; g) The sealing performance shall comply with the provisions of 5.9. 6.2 Type inspection
New products or products with significant improvements shall be subject to type inspection. Two units shall be selected from the provided inspection machines for type inspection. In addition to the factory inspection items, the type inspection items shall also include the degassing efficiency test and operation noise measurement of the degasser. 6.2.1 Degassing efficiency test
SY/r 5612.1--1999
6.2.1.1 The degassing efficiency test shall be conducted at least in two parallel sites. 6.2.1.2 Each site shall conduct at least 5 tests, the interval between two tests shall be more than 4 hours, and each test shall have at least 3 test data. 6.2.1.3 Take each data and calculate the degassing efficiency according to the following formula: Degassing efficiency = × × 100%
Where: - original drilling fluid density (i.e., the density of the drilling fluid that has been invaded by gas); Pi - gas-invaded drilling fluid density (sampled and tested at the degasser suction port); P2 - drilling fluid density after degassing (sampled and tested at the degasser discharge port). Take the half mean of the three data as the degassing efficiency of the test. 6.2.1.4 First calculate the average value of the degassing efficiency of each well site test, and then calculate the average value of the two well sites as the measured value of the degassing efficiency of the degasser. This value should meet the classification requirements of Table 4. 6.2.2 Degasser noise measurement method
The noise test should use an instrument with an accuracy of not less than ±2dB (A). The front, middle, left and right sides are measured once each at a distance of 1m from the degasser. The average value of the four readings should meet the requirements of Table 3. 7 Marking, packaging and storage
7.1 The degasser should be fixed with a product nameplate in a visible position. The nameplate should comply with the provisions of (3/T13306). The nameplate content should include: a) Product name and model:
b) Main technical parameters;
c) Design and manufacturing license number of the vacuum tank (omit if it does not comply with 5.2); d) Product number;
e) Manufacturer's name:
f) Manufacturing date (year, month).
7.2 Product packaging should comply with the provisions of GB/T13384. The random documents should be packed in plastic bags and packed in the packaging box (the outside of the box should be marked: This box contains random documents). The random documents should include: a) Product quality certificate or certificate:
b) Product instruction manual;
c) Accessories list;
d) Tool list;
e) Packing list.
7.3 The product should be stored in a dry and ventilated place.
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