Helps determine shale hydration or dehydration.
Problems such as stuck pipe, tight hole, washout, and sloughing can be related to shale stability. Tests used to determine if a specific shale is likely to cause problems include the capillary suction time (CST) test and the linear-swell meter (LSM) test. CST test results show the inhibitive effects of various slats and their concentrations on the dispersion of a shale.
The Swell Meter is designed to simultaneously test up to four drilling fluids (expandable to eight) on a representative shale sample for extended periods of time at temperatures up to 200°F.
The Swell Meter (LSM) helps determine shale hydration or dehydration by measuring the increase or decrease in length over time of reconstituted or intact shale core. Together the LSM and Capillary Suction Time (CST) tests determine the recommended mud system for drilling through a specific shale formation. First, a CST test is conducted to determine the correct inhibitor for the shale. Then, a variety of fluids are tested.
Technical parameters:
1.Stirring Speed: 0-2500rpm
2.Working Temperature:0-93℃ (200℉)
3.Measuring Range:0-20mm
4.Accurancy:0.01mm
5.Sample Diameter:28.6mm
6.Measuring Units: 4 heads
7.Power supply: 230V, 50/60 Hz

High Temperature Dynamic Linear Swell Meter  / Swell Capacity Test Instrument / Drilling Fluid Test Apparatus 

1.Outside packeg: Wooden Case

2.Inside package: strength film and foams

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