FIELD: oil industry.
SUBSTANCE: invention relates to oil and gas production, namely to devices for installation of bottom-hole instruments onto oil-well tubing (TBG), for example, for obtaining information on parameters of fluid in annular space of well by lowered self-contained measuring instruments or for fluid sampling in borehole by lowered self-contained sampler. Device contains container fitted and secured on pipe for inside arrangement of self-contained bottom-hole instruments. Container is made in form of case on the outer surface of the section of TBG with the coupling, standard size of the section of TBG directed towards increase of diameter relative to standard size of main string. On external surface main production string coupling is threaded, coupled with inner thread of coupling section of tubing string.
EFFECT: device reliability is increased, equal strength and corrosion resistance of pipe string body is maintained, manufacturing is simplified.
1 cl, 2 dwg, 1 tbl
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