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Processing method of quartz sand proppant

A processing method and sand proppant technology, which are applied in the field of shale fracturing, can solve the problem of high processing cost, and achieve the effects of reducing processing cost and making the processing process simple and convenient.

Pending Publication Date: 2020-09-01
PETROCHINA CO LTD
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  • Application Information

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Problems solved by technology

[0004] The embodiment of the present invention provides a processing method of quartz sand proppant, which can solve the problem of high processing cost of quartz sand proppant in the related art

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  • Processing method of quartz sand proppant
  • Processing method of quartz sand proppant
  • Processing method of quartz sand proppant

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Embodiment Construction

[0050] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0051] figure 1 It is a flowchart of a processing method for a quartz sand proppant provided by an embodiment of the present invention. see figure 1 , the method includes:

[0052] Step 101: Obtain quartz ore with a silica content greater than or equal to a preset content and a uniaxial compressive strength greater than or equal to a preset strength.

[0053] Step 102: Perform coarse crushing on the quartz ore to obtain quartz gravel with a particle size within the first particle size range.

[0054] Step 103: Perform fine crushing on the quartz gravel to obtain the first type of ore sand particles with a particle size within a second particle size range, the maximum value within the second particle size range being smaller than the...

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Abstract

The invention discloses a processing method of a quartz sand proppant, and belongs to the technical field of shale fracturing. The method comprises the steps that: quartz ore with the silicon dioxidecontent being larger than or equal to preset content and the uniaxial compressive strength being larger than or equal to preset strength is obtained; the quartz ore is sequentially subjected to coarsecrushing, fine crushing and screening, so that second ore sand particles with the particle size being within a third particle size range are obtained; the surfaces of the second ore sand particles are rounded, third ore sand particles are obtained; the third ore sand particles are screened, fourth ore sand particles with the particle size within a third particle size range are obtained; and fourth ore sand particles with the crack flow conductivity greater than or equal to preset crack flow conductivity are obtained from the fourth ore sand particles as the quartz sand proppant . The quartz sand proppant can be obtained by processing the quartz ore which is wide in source and low in cost and serves as the raw material; a processing process is simple and convenient; and the processing costof the quartz sand proppant can be effectively reduced.

Description

technical field [0001] The invention relates to the technical field of shale fracturing, in particular to a processing method for a quartz sand proppant. Background technique [0002] As a new natural gas resource, shale gas has received more and more attention. Due to the low porosity and low permeability of shale reservoirs, shale reservoirs need to be fractured to increase the production of shale gas. When fracturing shale reservoirs, proppant is an essential additive, which enters the formation together with slick water, fills in the fracturing fractures formed by fracturing shale, and keeps the fracturing fractures open , providing channels for the flow of shale gas. [0003] Currently, the proppant used in shale fractures is usually quartz sand proppant. The raw material of quartz sand proppant is usually desert sand, and desert sand can be processed into quartz sand proppant relatively easily due to the small particle size of desert sand. However, due to the remot...

Claims

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Application Information

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IPC IPC(8): C09K8/80
CPCC09K8/80
Inventor 彭欢马辉运彭钧亮高新平韩慧芬袁舒航何轶果黄玲宋雯静
Owner PETROCHINA CO LTD
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