Technical topics

2015

2021-05-20

In 2015, the company partnered with Changqing Oilfield to launch the new GZS/BLD-01 mud-shut-in system.

2014

2021-05-20

In 2014, the framework wave screen for drilling fluids was successfully developed and awarded one national patent.

2013

2021-05-20

In 2013, the GZS/S-5 and GZS/S-6 series of dual-track vibrating screens were successfully launched into the national market. In 2013, the trial of the GZS/BP-1 variable-frequency linear elliptical vibrating screen, paired with the GZS/YTJ-20 integrated desander–desilter unit, was successfully completed, and the equipment was smoothly deployed at Zhundong Drilling Company.

2012

2021-05-20

In 2012, two R&D projects—the GZS/S-4 dual-track vibrating screen and a new type of composite frame screen mesh—were successfully completed, resulting in the acquisition of two national patents and the smooth entry of these products into the Changqing Oilfield market.

Functions of Drilling Mud

2021-05-19

Summary: Functions of Drilling Mud (1) Flush the well bottom; (2) Carry cuttings; (3) Balance formation pressure; (4) Cool and lubricate the drill bit; (5) Protect the wellbore wall; (6) Provide downhole power.

Requirements for Drilling Mud

2021-05-19

Drilling circulation places the following requirements on drilling fluids: low pump pressure (low viscosity), strong cuttings-carrying capacity (high dynamic shear stress), low start-up pump pressure (low static shear stress), good lubricity, low friction, and minimal wear (due to a low solids content).

Functions of Solid Control Equipment

2021-05-19

Summary: Function—Control of Solid Content in Drilling Fluid. An increase in the solid content of drilling fluid significantly reduces mechanical rate of penetration and can even lead to drilling accidents, resulting in a substantial rise in overall drilling costs. Experimental evidence demonstrates that for every 1% reduction in solid content, the rate of penetration can improve by at least 10%, with smaller particle sizes having a more pronounced impact on mechanical rate of penetration. Therefore, the drilling fluid circulation system must be equipped with a drilling fluid purification unit.

2011

2021-04-16

In 2011, three R&D projects—the GZS/BP variable-frequency linear elliptical vibrating screen, a new splash-proof device, and a new screen mesh pressing system—were all successfully completed, resulting in the acquisition of three national patents.

Year 2011

2021-04-16

In 2011, the frequency conversion type translational elliptical vibrating screen GZS/BP, new anti-splash device, and new screen press-fitting system were all successfully developed and obtained 3 national patents.

2010

2021-04-16

In 2010, the series of linear elliptical vibrating screens GZS/PT-38, GZS/PT-43, and GZS/PT-55 were all successfully developed and received one national patent.

2008

2021-04-16

In 2008, the new GZS/Z-2 linear vibrating screen was successfully developed.

2007

2021-04-16

In 2007, the GZS/Z-1 linear vibrating screen was successfully developed with a perimeter-seamed screen mesh and entered mass production.