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Ministry of Energy of the People's Republic of China
Departmental Metrology Verification Procedure
Drilling Fluid Sand Content Determination Instrument
JG (Petroleum) 28--93
Published by Petroleum Industry Press
(Building 1, Anhuali District 2, Andingmenwai, Beijing) Typesetting and printing by Beijing Dianyi Yanhua Printing Factory
Published by Beijing Publishing House of Xinhua Bookstore
850×1168mm32-page 3/8 printing sheet6,000 wordsPrinting 12,500October 1993 Beijing 1st editionOctober 1993 Beijing 1st printing Book number: 155021·3867Price: 0.59 yuan Copyright reserved. No reproduction allowed
Ministry of Energy of the People's Republic of China
Departmental Metrology Verification Procedure
Drilling Fluid Sand Content Determination Instrument Measuring instrument
JG (Petroleum) 28-93
Free standard download website (www.freebz.net) Download without registration Main drafter of this regulation:
Mei Jinxiang (Mud Company of Shengli Petroleum Administration Bureau Drilling Company) Overview
II Technical requirements
III Verification conditions
IV Verification items and verification methods·
V Verification result processing and verification cycle.
Appendix Verification original record form format
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Drilling fluid sand content measuring instrument
Verification procedure
Verification Regulation of
Free standard download network (www.freebz.neJG (petroleum) 28-.93
equlpment for measuring Sand content in drilling fluids
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This verification regulation was approved by the Ministry of Energy of the People's Republic of China on March 26, 1993, and took effect on August 1, 1993. Responsible unit: Petroleum Industry Measurement Verification Regulation Technical Committee Drafting unit: Shengli Petroleum Administration Bureau Drilling Company The drafting unit is responsible for interpreting the technical provisions of this regulation. Free standard download network (www.freebz.net) No registration is required to download JG (petroleum) 28-93
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Drilling fluid sand content Verification Procedure for Sand Content Measuring Instruments
This procedure is applicable to the verification of newly manufactured, in-use and repaired drilling fluid sand content measuring instruments (hereinafter referred to as sand content meters). 1. Description
1 Sand content meter
is a measuring instrument used to measure the sand content in drilling fluid. Its measurement principle is to take a certain amount of drilling fluid, and after screening and washing, the volume percentage of solid phase particles with a diameter greater than 74um in the volume of the taken drilling fluid is obtained. Its structure is shown in the figure below. 2. Technical requirements
2 Appearance
2.1 The name, model, measurement range, manufacturer name, factory number and manufacturing year and month should be marked at the appropriate position of the sand content meter. 2.2 The glass test tube should be smooth and transparent, with clear, complete and durable graduation lines and numbers; the graduation line should be straight and perpendicular to the axis of the glass test tube, and its width should not exceed 0.4mm; there should be no cracks, gaps or other defects that affect the measurement reading and strength. 2.3 The metal mesh of the filter cartridge should be firmly assembled, and the mesh surface should be flat and clean, without broken wires, skipped wires, parallel wires, loose wires, back noses, folds, rust and mechanical damage. 2.4 The filter cartridge and the funnel should fit properly, and its surface should be smooth without defects such as cracks and scratches.
3 Metal mesh
The SSW0.075/0.050 metal mesh used should comply with the requirements of Chapter 2 of GB6004-"Metal Wire Weaving Square Hole Mesh for Test Sieve". 4 Glass test tube
4.1 Measuring range: sand content 0~20%.
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Sand content meter structure diagram
JG (petroleum) 28-93
Viscous well fluid
·1-funnel: 2-filter cartridge; 3-metal wire mesh: 4-glass test tube 4.2 The capacity value, capacity tolerance and indication error corresponding to the graduation are shown in Table 1 of this regulation. III. Verification conditions
5 Verification equipment
5.1 Microscope, graduation value 0.001mm, 35~100 times, 1 unit: 5.2 Graduation pipette: Class A, nominal capacity is 1, 2, 5, 25, 50ml, 1 each;
5.3 Reading magnifier: 1×10 or 1×15 times, 1 unit; 5.4 Glass beaker: 200ml, 1 unit;
5.5 Verification stand, which can hold the glass test tube firmly and keep it vertical, JG (petroleum) 28-93
Integral percentage graduation
Drilling fluid marking line
Water marking line
6 Medium
Capacity value
The medium is 200ml of distilled water.
7 Ambient temperature
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Capacity tolerance
Indication error
Room temperature 20±5℃. The temperature of the distilled water, graduated pipette and glass test tube to be tested used during calibration should be consistent with the room temperature. IV. Calibration items and calibration methods
8 Appearance inspection
Observe with the naked eye or with a magnifying glass. Newly manufactured sand meters should comply with the provisions of Article 2 of this Regulation. Sand meters in use and after repair should not have defects that affect the measurement performance. 9. Metal mesh inspection
9.1 For the maximum size inspection of any mesh hole, use a microscope with a graduation value of 0.001mm and a magnification of 35~100 times to measure the distance between the midpoints of the opposite sides of the mesh hole. The value should be ≤104μm.
9.2 Mesh average size inspection , use a microscope to measure three places in the warp and weft directions at the place where the mesh deviation is the largest. The connecting lines between the outer spaces shall not be parallel to the warp and weft directions. Free Standard Download Network (www.freebz.net) No registration is required to download a total of 7 pages, page 4
The average hole size is calculated according to formula (1).
Where: W is the average mesh size (μm);
JG (Petroleum) 28-93
: 1-—The length occupied by the continuous distribution of mesh spacing (μm); :n-—The number of meshes on 1 length (pieces); d-—The diameter of the metal wire (um).
Take n as 40 and d as 50um. The measured mesh size should meet the requirements of 75±4.1um.
9.3 For the inspection of the diameter of the metal wire, use a microscope to measure the average value of no less than 5 warp wires and 5 weft wires respectively, which should meet the requirements of 50±3um. Regulations. 10 Verification of the capacity and indication error of glass test tubes 10.1 Determination of the verification points; for newly manufactured glass test tubes, the nine points specified in Verification Table 1; for glass test tubes in use and after repair, the verification percentage divisions are: 1%, 2% and three points of the drilling fluid mark line. 10.2 Wash and cool the glass test tubes, and fix them vertically on the verification stand. 10.3 Use the corresponding burette to draw the corresponding distilled water from the low graduation line to the high graduation line according to the percentage division and capacity of the glass test tube, and record the amount drawn, and inject it into the glass test tube. When injecting, move the flow port of the burette to the graduation line to be tested on the glass test tube, so that the water flows down along the inner wall to avoid splashing of water droplets; a normal meniscus is formed at the contact between the water surface and the inner wall, and there should be no contamination such as hanging water, so as not to affect the accuracy of the capacity verification. When the liquid level is observed to rise accurately to the graduation line to be tested, stop injecting and record the actual Measure the capacity and calculate the capacity error. Its value shall comply with the provisions of Table 1 of this Regulation. 10.4 The method of observing the liquid level shall be that the lowest point of the liquid meniscus is horizontally tangent to the upper edge of the graduation line. The observer's line of sight must be on the same horizontal plane as the graduation line. In order to make the outline of the lowest point of the meniscus clearly presented, a black and white cardboard can be lined on the back of the graduation line of the glass test tube, with the upper edge of the black color located 1 mm below the meniscus. 10.5 The indication error is calculated according to formula (2): V
JG (Petroleum) 28-93
Where: 6—indication error (%));
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Total 7 pages Page 5
≥——sand content volume percentage graduation (%), V—capacity value corresponding to the actual sand content volume percentage graduation (m1); V-capacity value of the actual drilling and liquid volume (m1). The indication error shall comply with the provisions of Table 1 of this Regulation. V. Verification Result Processing and Verification Cycle
11 For sand content meters that meet the requirements of this regulation after verification, a verification certificate will be issued; for sand content meters that fail the verification, a verification result notice will be issued. 12 The verification cycle of sand content meters is generally 12 months. Free Standard Download Network (www.freebz.net) can be downloaded without registration. Total 7 pages, page 6
Original calibration record format
JG (Petroleum) 28-93
Drilling fluid sand content measuring instrument calibration record starting number
Inspection unit
Manufacturer
Model specification
Measuring range,
Appearance inspection
Manufacture end number
Calibration temperature
Calibration results
Glass test tube capacity and indication error calibration points
Content volume percentage division
Drilling fluid marking line
Water marking line
Capacity value
Capacity allowable Difference
Measured capacity
Capacity error
Indication error
JIG (petroleum) 28-93
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Wire mesh verification
Items and requirements
Maximum size of a mesh
Average size of mesh and average size deviation
Wire diameter and limit deviationwwW.bzxz.Net
Verifier
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≤104
Measured value
19 year month day
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