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Ceramic tracing proppant

A proppant and tracer technology, applied in wellbore/well components, production fluids, chemical instruments and methods, etc., can solve the problem that proppant cannot guarantee low density and high strength, etc., to achieve convenient access to raw materials and reduce construction costs. Cost and operability

Pending Publication Date: 2022-05-10
HENAN TIANXIANG NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method uses bauxite as raw material to prepare proppant, and is equipped with gadolinium oxide combined with pulsed neutron logging technology for measurement. Although this method has no radioactivity, the proppant cannot guarantee the requirements of low density and high strength

Method used

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  • Ceramic tracing proppant

Examples

Experimental program
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Effect test

Embodiment 1

[0035] The ceramic tracer proppant of this embodiment is mainly composed of the following components in percentage by mass: 65 parts of bauxite, 31 parts of kaolin, 1.5 parts of fluorite and 2.5 parts of neutron absorbing material. Among them, the neutron absorbing material is the mixture of gadolinium oxide, cadmium oxide and boron carbide, and the mixing ratio is 1: 1: 1;

[0036] The ceramic tracer proppant of this embodiment is prepared by a method comprising the following steps:

[0037] 1) respectively crushing bauxite and kaolin to below 2cm, grinding in a ball mill to a fineness of 550 meshes, and respectively grinding fluorite and neutron absorbing materials to a fineness of 550 meshes;

[0038] 2) 65 parts by weight of bauxite powder, 31 parts by weight of kaolin, 1.5 parts by weight of fluorite and 2.5 parts by weight of neutron absorbing material are evenly mixed, the mixture powder is added into a granulator under the condition of continuously spraying water mist, gra...

Embodiment 2

[0041] The difference between the ceramic tracer proppant of this embodiment and the ceramic tracer proppant of Example 1 is that the ceramic tracer proppant of this embodiment mainly consists of the following components in percentage by mass: 60 parts of bauxite, 30 parts of kaolin, 1 part of fluorite and 1 part of neutron absorbing material. The neutron absorbing material is gadolinium oxide.

Embodiment 3

[0043] The difference between the ceramic tracer proppant of this embodiment and the ceramic tracer proppant of Example 1 is that the ceramic tracer proppant of this embodiment mainly consists of the following components in percentage by mass: 90 parts of bauxite, 90 parts of kaolin, 5 parts of fluorite and 5 parts of neutron absorbing material. The neutron absorbing material is cadmium oxide.

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Abstract

The invention relates to a ceramic tracing proppant, and belongs to the field of oil and gas exploitation aids. The ceramic tracing proppant is mainly prepared from a neutron absorbing material and the following raw materials in parts by weight: 60-90 parts of bauxite, 30-90 parts of kaolin and 1-5 parts of fluorite. The ceramic tracing proppant disclosed by the invention has very high compressive strength under relatively low density, can effectively support formation cracks, guarantee a fracturing effect and provide an efficient channel for oil and gas output, and is wide in raw material source and relatively low in cost. Meanwhile, a neutron absorbing material is adopted and fused with an existing neutron logging technology, permanent tracing can be achieved under the non-radioactivity condition, and the crack height can be effectively, accurately and quantitatively determined.

Description

Technical field [0001] The invention belongs to the field of oil and gas exploitation additives, in particular to a ceramic tracer proppant. technical background [0002] Proppant is a kind of solid particle added into the fracture to support the fracturing operation in oil and gas fields, in order to ensure that the fractured fracture will not be closed after the pump is stopped. Proppant should meet the requirements of low density, high strength and low cost, so that the fracture can maintain strong conductivity and ensure the fracturing effect. [0003] When judging the effect of fracturing operation, it is necessary to measure the fracture height near the wellbore. At present, the main logging techniques are well temperature measurement and radioisotope measurement. Among them, the well temperature measurement technology is to compare the temperature drop when fracturing fluid is injected into the formation with the temperature of the fractured layer before fracturing, and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/80
CPCC09K8/80
Inventor 张天成常春丽薛建国刘现伟王君霞沈立峰
Owner HENAN TIANXIANG NEW MATERIALS