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Tracer agent monitoring technique method

A tracer and technology technology, applied in the field of tracer monitoring, can solve the problems of inaccurate monitoring data and backward technology, and achieve the effect of accurate detection and simple method

Inactive Publication Date: 2019-01-04
大庆东方兴盛石油科技服务有限公司
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  • Abstract
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Problems solved by technology

[0004] The current method technology is relatively backward, and the monitoring data is not accurate enough, so it needs to be improved

Method used

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Embodiment Construction

[0017] The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0018] The utility invention provides a technical solution, a tracer monitoring method, comprising the following steps:

[0019] A. Tracer screening and dosage design, mainly through five tests including indoor background concentration test, compatibility test, static adsorption test, fluidity test, and interference test, to optimize the best tracer;

[0020] B. Tracer injection construction, using tank trucks, cement trucks or constant flow pumps to inject the prepared tracer injection fluid into the target interval of the monitoring well;

[0...

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Abstract

The invention discloses a tracer agent monitoring technique method. The method comprises the following steps that A, a tracer agent is selected and the use level is designed, wherein the best tracer agent is selected mainly through five tests of an indoor background concentration test, a compatibility test, a static adsorption test, a liquidity test, and an interference test; B, tracer agent injection is conducted, the prepared tracer agent injection fluid is injected into a target layer section of a monitoring well by a tank car, cementing truck or constant-flow pump; C, the tracer agent is sampled, according to reservoir pattern conditions, monitoring purposes and industry standards, reasonable sampling time length and frequency are determined, strict sampling system requirements are established, sampling schemes are designed before and after profile control, after injection, sampling of surrounding oil well is carried out immediately by specialized sampling personnel; D, the traceragent is detected, and E, comprehensive analysis is conducted. Data obtained by the method is accurate. The method is simple and effective, and a major technological breakthrough is achieved.

Description

technical field [0001] The invention relates to the technical field of chemical monitoring, in particular to the technical method of tracer monitoring. Background technique [0002] The tracer interwell monitoring technology is to inject one or more water-soluble tracers in general or layered into the water injection well, take samples from the surrounding wells that are expected to be connected, and analyze the concentration of the tracer in the water samples taken. According to the test results Draw the tracer output curve, use tracer interpretation software to fit and analyze the tracer output curve, and interpret the reservoir parameters, so as to obtain the heterogeneity of the reservoir. After the tracer is injected from the water injection well, as the injected water breaks into the production well along the high-permeability layer or the large pore channel, the output curve of the tracer will gradually show a peak value. Different, the shape of the curve will also b...

Claims

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Application Information

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IPC IPC(8): E21B47/11
CPCE21B47/11
Inventor 王仁
Owner 大庆东方兴盛石油科技服务有限公司
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