Bottom hole sample taker
Schlumberger's Sidewall sample-taker for large and small hole diameters . of oil x (3) To evaluate bottom hole pressures (often using special charts as.
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Bottom Hole Fluid Sampling To collect fluid, a sample taking tool is the sample taker to avoid a high pressure draw down and gravity segregation.
Bottom hole sampling
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Description:It is critical that the whole process be carried out in a disciplined manner. Similarly, special hardened bullets are used to penetrate and core unusually hard formations. Where the borehole is this much oversized, extra long wire fasteners are used to extend the bullet's penetration range. A second crucial selection criteria is the likelihood of successful recovery of the core. In a very irregular, washed-out, overgauge hole, cores may be much shorter, or may even consist entirely of filter cake or drilling fluid-contaminated sediments. Though, for a number of obvious reasons, sidewall cores are inferior to bottomhole cores, they are far more commonly cut.
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