Method for preparing proppant in high intensity

A manufacturing method and proppant technology, which can be applied to drilling equipment and other directions, can solve the problems of increasing glass phase, restricting strength, and high energy consumption for grinding, reducing raw material cost and energy consumption, improving chemical stability, and reducing product density. Effect
CN1686924AInactive Publication Date: 2005-10-26关昌烈 +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
关昌烈
Publication Date
2005-10-26
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention provides a preparation method of high-strength proppant. Said method includes the following steps: mixing bauxite raw ore powder, rare earth concentrate, combustible substance and binding agent according to a certain mixing ratio, grinding them into powder material, sphere-forming to obtain blank spheres, screen to obtain semi-finished product spheres, roasting at 1250-1500 deg.C, further screening, polishing, removing dust, finally covering the spheres with phenol-formaldehyde resin so as to obtain finished product. Said invention also provides its application range.
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Description

technical field

[0001] The invention relates to a method for manufacturing a solid proppant for deep oil and gas well fracturing processes, in particular to a method for manufacturing a high-strength proppant. Background technique

[0002] At present, my country's oil and gas wells have entered a period of low permeability and high closure pressure. Hydraulic fracturing technology has become the main means of stimulation of oil and gas wells. As an important part of hydraulic fracturing, proppant is an important part of hydraulic fracturing. With the deepening of oil and gas wells , the closing pressure continues to increase, which puts forward high-strength and low-density requirements for the proppant. Chinese Patent Law 011086041 discloses a manufacturing method of high-strength ceramsite proppant. The main raw materials are slaked bauxite and clay, lanthanide metal oxides, manganese dioxide, magnesium oxide and other auxiliary materials. Although the obtained product has ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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