Trace element tracer borehole injection device

A technology of trace elements and injection devices, which is applied in wellbore/well parts, earthwork drilling, construction, etc., can solve the problems of inability to dissolve and inject trace elements tracers, and achieve simple structure, convenient operation, and convenient construction and maintenance Effect

Inactive Publication Date: 2015-04-15
TIANJIN DAGANG OILFIELD SHENGDA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of this, the main purpose of the present invention is to provide a trace element tracer downhole injection device, which can solve the problem in the prior art that the trace element tracer cannot be completely dissolved and injected into the formation

Method used

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  • Trace element tracer borehole injection device

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Embodiment Construction

[0010] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0011] figure 1 It shows a schematic structural view of a trace element tracer downhole injection device according to an embodiment of the present invention;

[0012] Such as figure 1 As shown, a trace element tracer downhole injection device includes a control module 1, a high-pressure pump 2, a drive motor 3, a pressure gauge 4, an overload protection module 5, a six-way valve 6, a valve 7, and a piston accumulator 8 And check valve 9, also comprises stirring device 11, and stirring motor 10 is connected stirring device 11 by stirring shaft 12, is provided with stirring blade 13 on both sides of stirring shaft 12, and stirring blade 13 rotates clockwise along stirring shaft 12, control module 1. Control the operation of the stirring motor 10.

[0013] Among them, the control module 1 is respectively connected with the high-press...

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Abstract

The invention provides a trace element tracer borehole injection device. The trace element tracer borehole injection device comprises a control module, a high pressure pump, a drive motor, a pressure meter, an overload protection module, a six way valve, a valve, a piston type energy accumulator and a check valve, and further comprises a stirring device, wherein a stirring motor is connected with the stirring device through a stirring shaft, stirring blades are arranged on two sides of the stirring shaft, the stirring blades rotate clockwise along the stirring shaft, and the control module controls running of the stirring motor. The trace element tracer borehole injection device is simple in structure, convenient to operate, convenient to construct and maintain, suitable for injections of trace element tracer in a water injection well, a steam injection well and a gas injection well, short in construction time and high in monitoring success rate, guarantees that trace element tracer is completely dissolved and injected into a stratum on site, can prevent fluid channeling in a well shaft during the layered injection process, saves manpower and material resources, reduces production cost, and improves work efficiency.

Description

【Technical field】 [0001] The invention relates to the technical field of downhole tracer injection in oil fields, and more particularly relates to a downhole injection device for trace element tracers. 【Background technique】 [0002] Cross-well tracer monitoring technology is a very effective method that can directly conduct cross-well testing, and has become a means of fine reservoir description. The trace element tracer is a new type of tracer that has emerged in recent years and has the outstanding advantages of low background concentration in the formation, good compatibility, good chemical stability, and environmental pollution. Interwell tracing technology is an important means to describe the heterogeneity and flow characteristics of related interwell oil layers. It has the characteristics of determining the connectivity of the combination, the high permeability layer between oil and water wells, the nature of faults, and the evaluation of remaining oil saturation. A...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B49/00E21B49/08E21B47/11
CPCE21B47/11
Inventor 李维萍
Owner TIANJIN DAGANG OILFIELD SHENGDA TECH
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