公开(公告)号：US09850716B2

公开(公告)日：2017-12-26

申请号：US15144821

申请日：2016-05-03

Applicant: Southwest Petroleum University

Inventor： Tiejun Lin ,  Ying Zhang ,  Zhanghua Lian ,  Qiang Zhang ,  Yong He ,  Gao Li ,  Taihe Shi ,  Hao Yu

IPC: E21B10/44 ,  E21B21/16 ,  E21B44/00 ,  E21B7/04

CPC classification number: E21B10/44 ,  E21B7/046 ,  E21B21/16 ,  E21B44/005

Abstract: A remote-controlled adjustable-speed screw drill for gas-drive hydraulic-motive during gas drilling is provided, including a piston speed control system, a motor assembly, a cardan shaft assembly and a transmission shaft assembly which are connected with each other from up to down in sequence. The motor assembly includes air inlets, a cam, air cylinders, pistons, a connecting rod, air outlets, liquid inlets, hydraulic cylinders, liquid check valves, a liquid storage chamber, liquid outlets, a liquid injecting chamber, a liquid injecting hole, an anti-drop cap, a rotor, a stator, and a motor assembly housing. The present invention utilizes the high-pressure gas injected by the gas drilling to drive the pistons to move back and forth at high-speed, so as to drive the incompressible liquid within the driving screw to achieve the self-circulating motion, and the screw rotor is driven to rotate by the liquid.

公开(公告)号：US12196042B1

公开(公告)日：2025-01-14

申请号：US18402298

申请日：2024-01-02

Applicant: Southwest Petroleum University

Inventor： Tiejun Lin ,  Chengsong Yang ,  Hao Yu ,  Jianhua Guo ,  Jiachang Nie ,  Chengxiu Yu ,  Yuheng Tuo ,  Hao Han ,  Xin Zeng ,  Zelin Zhu ,  Ruiqi Shen ,  Wenle Yu ,  Zeqian Ren

IPC: E21B10/56 ,  E21B10/567

Abstract: Provided is a novel wear-resistant and collision-resistant polycrystalline diamond compact (PDC) drill bit with rostriform teeth and a plurality of blades, including an upper joint and a drill matrix. The PDC drill bit with rostriform teeth and a plurality of blades breaks rocks jointly by the primary teeth by way of penetration-splitting and the secondary teeth by way of shearing, so that the torque needed to break the rocks is greatly reduced. The design of the plurality of blades balances force distribution between rocks and blades at a shaft bottom, so that the abrasion loss of the teeth within a unit time is reduced. The present invention solves the technical problems in the prior art that cutting positions are abraded, and the teeth are fed slowly and are unreasonably distributed.

公开(公告)号：US20160245063A1

公开(公告)日：2016-08-25

申请号：US15144821

申请日：2016-05-03

Applicant: Southwest Petroleum University

Inventor： Tiejun Lin ,  Ying Zhang ,  Zhanghua Lian ,  Qiang Zhang ,  Yong He ,  Gao Li ,  Taihe Shi ,  Hao Yu

IPC: E21B44/00 ,  E21B21/16 ,  E21B7/04 ,  E21B3/00 ,  E21B4/02

CPC classification number: E21B10/44 ,  E21B7/046 ,  E21B21/16 ,  E21B44/005

Abstract: A remote-controlled adjustable-speed screw drill for gas-drive hydraulic-motive during gas drilling is provided, including a piston speed control system, a motor assembly, a cardan shaft assembly and a transmission shaft assembly which are connected with each other from up to down in sequence. The motor assembly includes air inlets, a cam, air cylinders, pistons, a connecting rod, air outlets, liquid inlets, hydraulic cylinders, liquid check valves, a liquid storage chamber, liquid outlets, a liquid injecting chamber, a liquid injecting hole, an anti-drop cap, a rotor, a stator, and a motor assembly housing. The present invention utilizes the high-pressure gas injected by the gas drilling to drive the pistons to move back and forth at high-speed, so as to drive the incompressible liquid within the driving screw to achieve the self-circulating motion, and the screw rotor is driven to rotate by the liquid.

Abstract translation: 提供了一种用于气体钻井中气体驱动液压动作的遥控可调速螺旋钻，包括活塞速度控制系统，马达组件，万向轴组件和传动轴组件，它们彼此连接起来 按顺序排列。 马达组件包括空气入口，凸轮，气缸，活塞，连杆，空气出口，液体入口，液压缸，液体止回阀，液体储存室，液体出口，液体注入室，液体注入孔， 防滴帽，转子，定子和马达组件壳体。 本发明利用通过气体钻井喷射的高压气体来驱动活塞高速往复运动，以驱动驱动螺杆内的不可压缩液体以实现自身循环运动，螺杆 转子由液体驱动旋转。