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Method for preparing tracing ceramsite and method for detecting fracturing crack width by utilizing tracing ceramsite

A tracking and ceramsite technology, applied in the directions of surveying, earthwork drilling, and fluid extraction, it can solve the problem of not effectively pressing open, etc., and achieve the effect of super capture ability.

Pending Publication Date: 2021-08-10
维欧(天津)能源技术服务股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although fracturing is an efficient construction technology, there is still a need to evaluate the fracture shape near the wellbore after fracturing: sometimes due to various reasons (such as formation abnormalities, perforation hole plugging, etc.), some design pressures cannot be effectively opened. Fracture section; the fracturing fracture may also extend vertically excessively, beyond the designed fracturing section

Method used

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  • Method for preparing tracing ceramsite and method for detecting fracturing crack width by utilizing tracing ceramsite
  • Method for preparing tracing ceramsite and method for detecting fracturing crack width by utilizing tracing ceramsite
  • Method for preparing tracing ceramsite and method for detecting fracturing crack width by utilizing tracing ceramsite

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Embodiment

[0025] as attached figure 1 Shown, the present invention provides a kind of method for the preparation of tracer ceramsite, the method comprises the following steps:

[0026] Step 1: Send neutron capture material into a ball mill, the melting point of the neutron capture material is 1600°C, then add bauxite into the ball mill, and grind to obtain mixed mill powder;

[0027] Step 2: Send the mixed mill powder into the granulator for granulation, and sieve after the granulation is completed;

[0028] Step 3: After the screening is completed, it is sent to the rotary kiln for roasting at a roasting temperature of 1300 ° C. After roasting, it is cooled and the finished product is screened to obtain tracer ceramsite with excellent performance.

[0029] Specifically, using the obtained tracer ceramsite to detect the formation fracture width, the method includes the following steps:

[0030] Step A: injecting the prepared tracer ceramsite into the formation fracture to be detected;...

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Abstract

The invention provides a method for preparing tracing ceramsite. The method comprises the following steps: feeding a neutron trapping material into a ball mill, then adding bauxite into the ball mill, and grinding to obtain mixed ground powder; feeding the mixed ground powder into a granulator for granulation, and after granulation is completed, carrying out screening treatment; and after screening is completed, feeding into a rotary kiln, roasting, cooling after roasting, and screening a finished product. The tracing ceramsite is used for detecting the width of the formation fracturing cracks. The method comprises the following steps: injecting the prepared tracing ceramsite into a formation crack to be detected; emitting high-energy fast neutrons into a stratum by utilizing a tracer ceramsite matched detection instrument, and detecting thermal neutrons which are not captured by the stratum after the fast neutrons are decelerated by the stratum; and detecting the 2160 [mu]s thermal neutron counting rate after the fast neutron beam is emitted by using long and short source spacing detectors, and calculating the macroscopic neutron capture cross section of the stratum according to the recorded neutron data of each channel. According to the method, the crack width of the stratum can be effectively, accurately and quantitatively determined.

Description

technical field [0001] The invention belongs to the field of tracer ceramsite, in particular to the preparation of tracer ceramsite and a method for detecting the width of a pressure fracture by using the tracer ceramsite. Background technique [0002] The fracture evaluation technique of tracer ceramsite fracturing is mainly used to describe the vertical fracture height (proppant laying height). The tracer ceramsite contains gadolinium (Gd) element with a high neutron capture cross section and a high capture gamma cross section, which changes the neutron-neutron or neutron-gamma logging response. By comparing the logging data before and after fracturing, it can Identify artificial fracture heights. Although fracturing is an efficient construction process, there is still a need to evaluate the fracture shape near the wellbore after fracturing: sometimes due to various reasons (such as abnormal formations, perforation hole plugging, etc.) Fracture intervals; fracturing frac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/11E21B47/00E21B43/26
CPCE21B43/26E21B47/00
Inventor 郭彪郭洪森郭伟刘雅刘海庆雷海
Owner 维欧(天津)能源技术服务股份有限公司
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