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Jet type double water holding tracer logger

A jet type, logging tool technology, applied in construction and other directions, can solve the problems of high cost, water pollution, increase the manufacturing cost of logging tools, etc., and achieve the effect of small size and high measurement accuracy

Pending Publication Date: 2020-02-07
西安博恩昌仪器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the turbine flow measurement method, due to the characteristics of the turbine flowmeter's own structure, it cannot effectively measure light heavy oil, high pour point oil wells, and sand producing wells. Oil wells account for a high proportion, so the turbine flow logging tool has not been widely used
[0003] The tracer flow measurement method is widely used, but the logging tracers used in the current tracer flow measurement method all use radioactive liquids, or use neutron oxygen activation technology to activate water molecules to make them Radioactive, the existing isotope tracer flow measurement method sprays the radioisotope tracer directly into the water body, which will pollute the water body
In addition, the detection components used in the existing tracer logging tools are mostly photomultiplier tubes, which are expensive, which increases the manufacturing cost of the logging tool

Method used

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  • Jet type double water holding tracer logger
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] See figure 1 , figure 1 It is a schematic cross-sectional view of the jet-type dual water-holding tracer logging tool provided by the embodiment of the present invention. As shown in the figure, the jet-type dual-holding water tracer logging tool includes a measurement circuit nipple 1, a measurement cylinder 2, a liquid storage cylinder 3 and a motor pushing and retracting nipple 4 connected in sequence, wherein the measurement circuit nipple 1 is used for To accommodate the measurement circuit, the motor push-retract short joint 4 is used to accommodate the motor that pushes the tracer liquid, and the motor is electrically connected to the measurement circuit. In this embodiment, the motor is connected to the measurement circuit through the connection pin 16 crossing the liquid storage chamber 6 and the measurement chamber 7 . A liquid storage chamber 5 is opened inside the liquid storage cylinder 3, and the liquid storage chamber 5 contains an oily tracer liquid, a...

Embodiment 2

[0036] On the basis of the above-mentioned embodiments, the oily tracer liquid used in the jet-type dual-holding water tracer logging tool of this embodiment is a silicone grease blend or a grease blend, and its density is close to the density of the liquid in the well. Therefore, the The flow velocity of the oily tracer fluid is the same as that of the fluid in the well to be measured.

[0037] Further, a sealing ring 14 is provided between the outer wall of the push-pull piston 7 and the inner wall of the liquid storage cylinder 3 , so as to prevent the tracer liquid from flowing into the motor through the push-pull piston 7 and damage the normal operation of the motor.

[0038] Further, in this embodiment, a liquid injection port 15 communicating with the liquid storage chamber 5 is opened on the side wall of the liquid storage cylinder 3, and the liquid injection port 15 is used to inject the required oiliness into the liquid storage chamber 5 before measurement. After the...

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Abstract

The invention relates to a jet type double water holding tracer logger. The jet type double water holding tracer logger comprises a measuring circuit nipple, a liquid storage cylinder, a measuring cylinder and a motor push-pull nipple which are successively connected, wherein a liquid storage chamber is formed in the liquid storage cylinder, the liquid storage chamber contains oily tracer liquid,and a measuring chamber is formed in the measuring cylinder; the inner part of the liquid storage chamber is provided with a push-pull piston, the end part of the liquid storage chamber is provided with a jet nozzle, and the liquid storage chamber is connected to the measuring chamber through the jet nozzle; and the side walls of the measuring cylinder are respectively provided with a liquid inletand a liquid outlet, the inner part of the measuring chamber is provided with a first water holding probe and a second water holding probe, and the first water holding probe and the second water holding probe are connected to a ground acquisition system through measuring circuits. The jet type double water holding tracer logger adopts the non-radioactive oily tracer liquid which is safe and reliable, and has no pollution; and in addition, the test probes adopted by the jet type double water holding tracer logger has a smaller size and higher measurement accuracy.

Description

technical field [0001] The invention belongs to the technical field of well logging equipment, and in particular relates to a jet-type dual-holding water tracing logging instrument. Background technique [0002] In the development of oil fields, it is necessary to measure the liquid production in the oil well. The methods used to measure the liquid production at home and abroad mainly include the turbine flow measurement method and the tracer flow measurement method. For the turbine flow measurement method, due to the characteristics of the turbine flowmeter's own structure, it cannot effectively measure light heavy oil, high pour point oil wells, and sand producing wells. Oil wells occupy a high proportion, so the turbine flow logging instrument has not been widely used. [0003] The tracer flow measurement method is widely used, but the logging tracers used in the current tracer flow measurement method all use radioactive liquids, or use neutron oxygen activation technolo...

Claims

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Application Information

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IPC IPC(8): E21B47/11
Inventor 张录军杨勇高华杨本利龚新艳
Owner 西安博恩昌仪器有限公司
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