Bridge-type concentric measuring, adjusting and sealing examination integrated testing instrument

A testing instrument and sealing technology, applied in the directions of measurement, production of fluids, wellbore/well components, etc., can solve problems such as low efficiency, large workload, and increased operation risks, so as to simplify operation procedures, improve testing efficiency, reduce Downhole operation risk and effect of construction cost

Active Publication Date: 2015-12-16
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the problem that in the existing layered water injection process technology, both the seal inspection and the test and adjustment process need to be lowered into the instrument for at least two operations, the workload is relatively large, the efficiency is low, and the operation risk is increased.

Method used

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  • Bridge-type concentric measuring, adjusting and sealing examination integrated testing instrument
  • Bridge-type concentric measuring, adjusting and sealing examination integrated testing instrument

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Effect test

Embodiment 1

[0023] In order to overcome the problem that in the existing layered water injection process technology, both the seal inspection and the test and adjustment process need to be lowered into the instrument for at least two operations, the workload is relatively large, the efficiency is low, and the operation risk is increased. This embodiment provides a kind of figure 1 and figure 2 The bridge-type concentric test and test seal integrated test instrument shown includes the upper joint 1, the flow measurement mechanism 2, the main control mechanism 3, the power transmission mechanism 4, the tool positioning mechanism 5, the test and test mechanism connected sequentially from top to bottom. Seal switching mechanism 6, seal checking mechanism 7 and flow regulating mechanism 8, an outer cylinder 9 is arranged on the outside of the main body control mechanism 3 and power transmission mechanism 4, the upper end of the outer cylinder 9 is connected with the flow measurement mechanism...

Embodiment 2

[0026] On the basis of Embodiment 1, the flow measurement mechanism 2 includes an information control device 2-1, a flow measurement upper probe 2-2, a flow meter 2-3, and a flow measurement lower probe 2-5 connected sequentially from top to bottom , the lower part of the flowmeter 2-3 is connected to the outer cylinder 9; the power transmission mechanism 4 includes a motor 4-3, a coupling 4-4 ​​and a transmission shaft 4-5 connected sequentially from top to bottom, and the lower part of the transmission shaft 4-5 It is set in the tool positioning mechanism 5; the test and inspection seal switching mechanism 6 includes a lower coupling 6-1 and an upper clutch 6-2, and the lower coupling 6-1 is connected with the lower part of the tool positioning mechanism 5; the sealing inspection mechanism 7 includes a glue Cylinder 7-6, connecting rod 7-7, following rubber cylinder 7-9 and following clutch 7-10, upper clutch 6-2 is connected with connecting rod 7-7, connecting rod 7-7 is con...

Embodiment 3

[0035] On the basis of embodiment 2, the flow measuring mechanism 2 also includes a centralizer 2-4, which is arranged outside the flowmeter 2-3 and connected with the flowmeter 2-3; the flowmeter 2-3 is an ultrasonic flowmeter, and the flow measurement signal is converted in the information control device 2-1 to obtain measurement data.

[0036] The main body control mechanism 3 includes a power supply sealing block 3-1, a temperature and pressure sensor 3-2, a control frame 3-6, and a control acquisition mechanism 3-7, which are sequentially set in the outer cylinder 9 from top to bottom. 3-7 is the single-chip microcomputer control unit, which is used to receive various action commands sent by the ground controller, and transmit them to the actuators of each part to perform various downhole operations; the control frame 3-6 is sequentially arranged with An upper magnetic steel 3-3, a coil shaft 3-5, a lower magnetic steel 3-3a, and a magnetic induction coil 3-4 wound on the...

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Abstract

The invention belongs to the technical field of stratified water injection of oil fields, and particularly provides a bridge-type concentric measuring, adjusting and sealing examination integrated testing instrument, comprising an upper joint, a flow measuring mechanism, a main body control mechanism, a power transmission mechanism, a tool positioning mechanism, a measuring, adjusting and sealing examination switching mechanism, a sealing examination mechanism and a flow adjusting mechanism which are connected sequentially from top to bottom. An outer barrel is arranged on the outer sides of the main body control mechanism and the power transmission mechanism, and the upper end of the outer barrel is connected with the flow measuring mechanism while the lower end of the same is connected with the tool positioning mechanism. The instrument has functions of sealing examination of a packer and stratified flow course measuring and adjusting. After the instrument is lowered into a well and docked with a water distributor through a cable, the packer is subjected to sealing examination, a stratified distribution process is performed on the water distributor directly after sealing examination, and only one time of downhole operation is needed in the whole process, so that operation processes are simplified, stratified well injection testing efficiency is improved, and downhole operation risk and construction expense are lowered.

Description

technical field [0001] The invention belongs to the technical field of layered water injection in oilfields, and in particular relates to a theme bridge-type integrated testing instrument for concentric testing, testing and sealing. Background technique [0002] In the process of oilfield development, in order to effectively maintain formation capacity, improve crude oil production and oilfield development effects, it is necessary to replenish energy to the reservoir in time. At present, water injection or gas injection into the formation is often used. Due to the heterogeneity of the formation, tongue or fingering phenomenon will occur in the water injection process, which will reduce the sweep efficiency of water flooding and reduce the development effect. Therefore, layered water injection is often used to alleviate it. The device divides the oil layer into several production intervals to improve the vertical development effect of the oil reservoir. [0003] At present, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/00E21B43/20
Inventor 于九政姚斌杨玲智罗必林毕福伟王子建
Owner PETROCHINA CO LTD
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