Double-tracing thin layer recognizer

An identifier and dual tracer technology, which is applied in construction and other directions, can solve problems such as contamination, and achieve the effect of improving measurement accuracy and enriching information

Active Publication Date: 2013-01-30
焦春红
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the above technical deficiencies, the present invention provides a dual tracer thin layer identifier, which effectively solves the measurement problems o

Method used

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  • Double-tracing thin layer recognizer

Examples

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Example Embodiment

[0033] like figure 1 As shown in the figure, the double tracer thin layer identifier includes a liquid releaser, a remote four-parameter receiver, a single gamma meter, an upper centralizer, an ultrasonic flowmeter, a lower centralizer, and a solid releaser, which are connected in sequence. The structure is:

[0034] like figure 2As shown, the specific structure of the liquid releaser 2: the upper joint 10 of the liquid releaser 2 is provided with a single-core socket-9, the upper and lower ends of the upper joint 10 are respectively provided with threads, and a liquid injection hole 11 is provided in the radial direction. The inner end of the hole 11 is connected to the liquid source bin 12, the liquid source bin 12 is filled with the liquid Ba131 radioactive tracer, the liquid source bin 11 is provided with a piston one 13, the middle of the piston one 13 is provided with a piston rod one 14, and the piston rod one 14 Connect the screw drive device one 16 through the inte...

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Abstract

The invention discloses a double-tracing thin layer recognizer and a test method thereof and belongs to the technical field of oil field production well dynamic monitoring. The double-tracing thin layer recognizer comprises a liquid releaser, a telemetry four-parameter receiver, a single Gamma instrument, an upper centralizer, an ultrasonic wave flow instrument, a lower centralizer and a solid releaser which are sequentially connected. The double-tracing thin layer recognizer can carry out the conventional five-parameter, continuous tracing, point measurement tracing and radioactive carrier method tracing well logging when going down to a well once, the acquired amount of information is rich, measurement of injection sections of all the straight type wells is contained, the measurement accuracy is improved, and the test problem of difficult wells with low injection rate, multilayer injection allocation and small interlayer space namely the longitudinal density of a perforation layer is solved.

Description

technical field [0001] The invention relates to a dual-tracing thin layer identifier, which belongs to the technical field of dynamic monitoring of production wells in oil fields. Background technique [0002] At present, the injection profile logging technologies used for dynamic monitoring mainly include radioactive carrier tracer logging, pulsed neutron oxygen activation logging, spot correlation logging, and continuous tracer correlation logging. Some aspects have achieved good results, but there are still some insurmountable problems, such as: contamination, that is, when there is oil on the inner wall of the oil and casing or when the specific gravity of radioactive particles is greater than that of water, it will cause oil, casing walls and joints to be damaged. Severe fouling of hoop tools affects measurement accuracy; large perforation holes - when the perforation holes in the formation are large or the formation pores are larger than radioactive particles, they ent...

Claims

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Application Information

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IPC IPC(8): E21B47/11
Inventor 杜显波
Owner 焦春红
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