An automatic sampling grouping device with adjustable sampling interval for cuttings logging

Abstract

The invention discloses an automatic sampling and grouping device with adjustable sampling interval for rock debris logging. The automatic sampling and grouping device comprises a main box, a reciprocating sampling cavity with an upward opening is formed in the main box; the lower side of the reciprocating sampling cavity is communicated with a sliding block guide rail; the lower side of the reciprocating sampling cavity is communicated with a rock debris discharge cavity with a downward opening and positioned on the rear side of the sliding block guide rail; the lower side of the slider guiderail communicates with a turntable cavity; the interval of reciprocating motion of the receiving box can be adjusted by shifting the shifting rod, and thus different sampling intervals are selected according to actual conditions to automatically sample; meanwhile, after sampling is completed, the rock debris can be automatically fed into the rock debris basin in a grouped mode, one group is cleaned, the working efficiency of testers is improved, on the other hand, the rack resets to drive the receiving box to move, it is guaranteed that the sampling time is the same each time to guarantee thesame sampling amount each time, variables are reduced and follow-up identification is better facilitated.

Description

Technical field[0001]The invention relates to the technical field related to petroleum exploitation, in particular to an automatic sampling grouping device with adjustable sampling intervals for cuttings logging.Background technique[0002]Cuttings logging needs to collect and sample cuttings at a fixed drilling interval, and divide them into two groups of cleaned and uncleaned for subsequent identification. Because the sampling interval is affected by the actual situation, it needs to be adjusted frequently, which is difficult to complete automatically. Sampling is mostly done manually below the sand outlet. In most cases, the sampling volume is large, the manual sampling group cleaning efficiency is low and the labor is large. On the other hand, manual sampling cannot guarantee the same amount of cuttings each time. , Will cause certain variables in subsequent identification.Summary of the invention[0003]In view of the above technical shortcomings, the present invention proposes an ...

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Problems solved by technology

[0002] Debris logging needs to collect and sample cuttings at fixed drilling intervals, and divide them into cleaned and unwashed groups for subsequent identification. Since the sampling interval is affected by actual conditions, it needs to be adjusted frequently, which is difficult to complete automatically. Currently, cuttings Sampling is mostly done manually at the bottom of the sand outlet. Due to the large sampling volume in most cases, the cleaning efficiency of manual sampling grouping is low and the labor load is large. On the other hand, manual sampling cannot guarantee the same amount of cuttings for each sampling. , there will be certain variables in the subsequent identification

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