Inventor

ZHAO XIANZHENG

CN7 patents

⚠️ This page may combine multiple inventors who share the name “ZHAO XIANZHENG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

DAGANG OIL FIELD COMPANY OF CNPC

4 patents

US10689954B1Jun 23, 2020

Research method of trajectory design and on-site tracking and adjustment of shale oil horizontal well

DAGANG OIL FIELD COMPANY OF CNPC73 citations92

US11204441B1Dec 21, 2021

Oil-gas reservoir exploration method and apparatus

DAGANG OIL FIELD COMPANY OF CNPC3 citations69

US10976469B1Apr 13, 2021

Method and apparatus for optimal selection of fracturing stage clusters of continental shale oil horizontal well

DAGANG OIL FIELD COMPANY OF CNPC5 citations68

US11249062B2Feb 15, 2022

Shale brittleness sweet spot evaluation method

DAGANG OIL FIELD COMPANY OF CNPC0 citations46

RES INSTITUTE OF PETROLEUM EXPLORATION & DEVELOPMENT DAGANG OIL FIELD OF CNPC

1 patent

US10190998B1Jan 29, 2019

Method and device for evaluating and predicting a shale oil enrichment areas of fault lacustrine basins

RES INSTITUTE OF PETROLEUM EXPLORATION & DEVELOPMENT DAGANG OIL FIELD OF CNPC86 citations91

UNIV SOUTHWEST PETROLEUM

1 patent

US12326067B1Jun 10, 2025

Infinite-stage fracturing sliding sleeve

UNIV SOUTHWEST PETROLEUM0 citations51

DAGANG OIL FIELD OF CNPC

1 patent

US10365387B1Jul 30, 2019

Method for secondary exploration of old oil area in fault subsidence basin

DAGANG OIL FIELD OF CNPC0 citations31