The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 08, 2021
Filed:
Jan. 16, 2017
Sichuan Honghua Petroleum Equipment Co., Ltd., Sichuan, CN;
Rui Luo, Sichuan, CN;
Ting Zhang, Sichuan, CN;
Xiaowu Ou, Sichuan, CN;
Qionghua Yang, Sichuan, CN;
Yuegang Xu, Sichuan, CN;
Guixuan Li, Sichuan, CN;
Hongke Xia, Sichuan, CN;
Wei Zhang, Sichuan, CN;
SICHUAN HONGHUA PETROLEUM EQUIPMENT CO., LTD., Sichuan, CN;
Abstract
A drilling rig includes a base section, a first section, a second section, a third section and a fourth section. For the base section upper region, a fixed pulley block and a guide pulley are installed. Except for the fourth section-crown block section, each section lower region is installed with a lifting lug for a movable pulley block installation for substantially vertical lifting. The crown block section is installed substantially vertical; the subsequent section is located substantially horizontal with the section front pillar upper region connecting to the previous section front pillar lower region. The previous section is substantially vertical lifted to draw the next section skidding into the base section and lifting substantially vertical with the previous section pillar lower region connected to the next section pillar upper region.