FRACTURE NETWORK TYPE SAND-CATCHING AGENT AND APPLICATION THEREOF

WIPO Patent Application WO/2024/041567

A1

A fracture network type sand-catching agent and the application thereof. The fracture network type sand-catching agent comprises a sand-catching agent body, and an outer bonding layer that can be melted when heated, wherein the sand-catching agent body is composed of elastic polygonal prisms that are intertwined in a curled state and are internally provided with pore network structures. After the fracture network type sand-catching agent releases the sand-catching agent body when heated, an effective "fence" type intercepting dam is formed in a fracturing crack to effectively prevent backflow of a proppant, and the sand-catching agent has a high sand catching and retaining efficiency and is superior to a conventional fiber material. In addition, the sand-catching agent body has the pore network structures, such that the flow guide capacity of the crack is not influenced, and the problem of reduced flow guide capacity of the fracture due to a low consolidation efficiency and pore blockage of traditional resin coated sand is overcome.

XU YANG (CN)
WANG KUN (CN)
WANG SUOLIANG (CN)
LI YONG (CN)
MIN QI (CN)
XIA HAIBING (CN)
JIANG WENXUE (CN)
ZHOU RAN (CN)
XU FANGXIANG (CN)
WAN XIANGHUI (CN)
YANG FA (CN)
CHEN AIJUN (CN)
YUAN BIN (CN)
LI SHAN (CN)

PCT/CN2023/114438

February 29, 2024

August 23, 2023

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CHINA NAT PETROLEUM CORP (CN)
CNPC CHUANQING DRILLING ENG CO (CN)

C09K8/80; C09K8/62; E21B43/267

US20160312112A1	2016-10-27
US20090044942A1	2009-02-19
CN114718522A	2022-07-08
CN110257045A	2019-09-20
CN108315006A	2018-07-24

BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)

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