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一、地面取样方法地面取样,就是让油气井在一定的工作制度下,由一级分离器取得具有代表性的分离器油样和气样。下面详细介绍取样前的工作和取样的方法。(一)取样前油气井的调整一个饱和或略未饱和的油气藏,在正常生产过程中,可能因生产压差过大而导致井底附近出现气液两相流。因此,取样前必须对油气井进行适当的调整。其步骤是:首先把井的产量降低一半左右,待生产油气比稳定后再把产量降低一半,如此下去,直到稳定油气
First, the ground sampling method Ground sampling, that is, so that oil and gas wells in a certain system of work, from a separator to obtain a representative separator oil samples and gas samples. The following describes in detail the work before sampling and sampling methods. (I) Adjustment of pre-sampling wells A saturated or slightly unsaturated reservoir may cause gas-liquid two-phase flow near the bottom of the well due to excessively large production pressure during normal production. Therefore, the oil and gas wells must be properly adjusted before sampling. The steps are: First of all, to reduce the production of wells by about half until the production of oil and gas than the stability of the production and then reduce by half, so go on until the stable oil and gas