Garrett Gas Train
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GARRETT GAS TRAIN (GGT) DRILLNG FLUID TESTING INSTRUMENT Website: http://www.riachina.com Email: sales@rigchina.com SKYPE:rigchina Address: No.80-82, Qiude Road, West Cheng Industrial Estate, Yongkang city Zhejiang Province, China

GARRETT GAS TRAIN (GGT) DRILLNG FLUID TESTING INSTRUMENT

GARRETT GAS TRAIN (GGT) DRILLNG FLUID TESTING INSTRUMENT A number of gases are generally present in the drilling fluid during the drilling operation. Two of these gases may be identified and their concentration determined using the Garrett Gas Train. These are undesirable gases but their presence and concentration are important. Hydrogen Sulfide (H2S) and Carbon Dioxide (CO2). The presence of Hydrogen Sulfide Gas is important because it is toxic and dangerous to human health. It is a health hazard in concentrations in air as low as 20 parts per million. Hydrogen Sulfide can be fatal in...

GARRETT GAS TRAIN (GGT) DRILLNG FLUID TESTING INSTRUMENT types of Draeger tubes are used to adequately span the range of hydrogen sulfide concentrations that may be found in water based drilling fluid filtrates and in oil based drilling fluids. The low-range Draeger tube, H2S 100/a, is white until H 2S turns it brownish-black. The high-range Draeger tube, H2S 0.2%/A, is pale blue until H2S turns it jet black. No known common drilling fluid component or contaminant causes this coloration of the Draeger tubes as does H2S. The Draeger tubes change color by reacting to a given quantity of H 2S...

GARRETT GAS TRAIN (GGT) DRILLNG FLUID TESTING INSTRUMENT to the CO2 passing through it by progressively staining along its length as the CO2 reacts with a chemical which causes a crystal indicator to turn purple. The stain length is sensitive to the amount of CO2 present, but it also responds to the CO2 distribution, total volume, and flow rate of gas passed through the tube. The RIGCHINA Garrett Gas Train kit contains all hardware and reagents required to conduct the procedure according to API Recommended Practice 13B-1, ANSI/API 13B-1/ISO 10414-1. Two types of Drä eger tubes are supplied...

GARRETT GAS TRAIN (GGT) DRILLNG FLUID TESTING INSTRUMENT Carbon dioxide, nitrous oxide, and nitrogen are the gases used with the Garrett Gas Train. Never connect this instrument to any other gas.  Nitrogen must be supplied from an approved nitrogen gas cylinder. Nitrogen cylinders must be secured and meet all safety standards. Maintain pressure regulators in good condition. Never use oil on pressure regulators. Leaking pressurization systems should be repaired or replaced. Gauges, fittings and hoses should be kept in good condition and leaks should be found and corrected. Periodically test...

GARRETT GAS TRAIN (GGT) DRILLNG FLUID TESTING INSTRUMENT 3. FEATURES AND SPECIFICATIONS The Garrett Gas Train kit contains the apparatus, laboratory supplies, and reagents to perform sulfide and carbonate analyses. The Garrett Gas Train apparatus meets API RP specification. See Table 3-1 Garrett Gas Train Specifications. Tables 3-2, 3-3, and 3-4 list the required equipment for specific tests and drilling fluid samples. The equipment listed in Table 3-2 is also required for these tests. Table . 3-1 Garrett Gas Train Specifications

GARRETT GAS TRAIN (GGT) DRILLNG FLUID TESTING INSTRUMENT *Hydrogen sulfide test paper are optional and must be ordered separately. *A magnetic stirrer is required, but not supplied in this kit. This item is available as a separate purchase

GARRETT GAS TRAIN (GGT) DRILLNG FLUID TESTING INSTRUMENT SULFIDE ANALYSIS OF WATER-BASED DRILLING FLUIDS The Garrett Gas Train and required equipment for this analysis is shown in Figure 4-1. This section describes the setup and procedure using this kit. Figure 4-1 Garrett Gas Train Sulfide Analysis: Water-Based Drilling Fluids 9

GARRETT GAS TRAIN (GGT) DRILLNG FLUID TESTING INSTRUMENT 4.1 Set Up Refer to Figure 4-1. If it is not known that CO2 gas was used in the last test, the regulator, tubing, and dispersion tube should be purged with CO2 gas for two minutes. To run the sulfides test using a hydrogen sulfide test paper instead of the Drӓger tube, fit the test disc under the O-ring of chamber 3 of the Garrett Gas Train. The hydrogen sulfide test paper will indicate the presence or absence of sulfides in the sample. If flowing CO2 for fifteen minutes is applied, hydrogen sulfide test paper can provide an estimate...

GARRETT GAS TRAIN (GGT) DRILLNG FLUID TESTING INSTRUMENT (0.6 cm) above the bottom. 6. Select the proper Drӓger tube for the expected concentration of sulfides. (Refer to Table 1 for sample volumes and Drӓger tube ranges). 7. Apply Lubriseal® on both ends of Drӓger tube. Break the tips on both ends by inserting them in the hole in bracket [44]. Drӓger tube pointed up, insert the tube [33 or 34] into the loosened connector [15] on top of chamber 3 until first line on scale is level with the top of the connector. Hand- tighten the tubing connector nut. Connect the Tygon® tube [25] from the...

GARRETT GAS TRAIN (GGT) DRILLNG FLUID TESTING INSTRUMENT 2. Verify approximately 5 psig pressure on gauge [21]. Back out the T-screw on the regulator [5] until it turns freely to shut off the carrier gas supply. 3. Allow the system to remain pressurized approximately 5 minutes and observe the gauge reading. If the pressure is less than 3 psig, use soap solution to find the leak. 4. If the system passes the pressure, remove the tubing plug and readjust the regulator to 5 psig. 5. Shut off the CO2 carrier gas at the needle valve [6]. 4.2 Sample Analysis The estimated concentration of soluble...

GARRETT GAS TRAIN (GGT) DRILLNG FLUID TESTING INSTRUMENT RjGCHjNA to achieve a steady flow of 0.3 liters/minute for 4 minutes when using the hydrogen sulfide paper. One cartridge is sufficient for either size Drager tube and should provide 15 to 20 minutes of charge at 0.3 liters/minute. With the hydrogen sulfide paper, three to four tests can be made with one cartridge, but the paper should not be used more than three or four times. For any quantitative test, the test must be run for 15 minutes. 5. Observe changes in appearance of the Drager tube. Before the front starts to smear, note and...