Parameters optimization in deepwater dual-gradient drilling based on downhole separation
To ensure safe drilling with narrow pressure margins in deepwater, a new deepwater dual-gradient drilling method based on downhole separation was designed.
Jiangshuai WANG +4 more
doaj +4 more sources
Improving drilling performance through optimizing controllable drilling parameters [PDF]
The prediction of the drilling rate of penetration (ROP) is one of the key aspects of drilling optimization due to its significant role in reducing expensive drilling costs.
Ahmed Bani Mustafa +3 more
doaj +2 more sources
Effect of Drilling Parameters on Machining Performance in Drilling Polytetrafluoroethylene. [PDF]
Polytetrafluoroethylene (PTFE) plays an important role in semiconductor manufacturing. It is an important processing material for the key sealing components in the field of immersion lithography. The lack of research related to the mechanical processing of PTFE leads to many challenges in producing complex parts.
Ni J +6 more
europepmc +3 more sources
During bone drilling surgery, the bone drill can generate drilling force and frictional heat, which may lead to mechanical and thermal damage to the bone tissue.
Heqiang Tian +4 more
doaj +3 more sources
Drilling Monitoring While Drilling and Comprehensive Characterization of Lithology Parameters
The monitoring technology used during drilling has become a crucial means of gathering information about the underground rock mass. However, the drilling response parameters are affected by the coupling of operating parameters and rock mass properties ...
Huijie Zhai +4 more
doaj +2 more sources
Optimization and Application of Drilling Parameters Based on Gas–Solid Coupling Simulation [PDF]
The layout of directional high-level long boreholes in fracture zones for extracting pressure-relieved gas from goaf is a key technology to address the gas concentration exceedance in upper corners.
Zhiguo Ge +6 more
doaj +2 more sources
The influence of sequential drilling and machining parameters on uncut fiber formation and delamination damage in fiber-reinforced composites. [PDF]
Izadi SMH, Mozaffari A.
europepmc +3 more sources
CBM drilling technical parameter optimization methodology and software development: a case study of LUAN mining area [PDF]
Based on the leakage of the coalbed methane (CBM) drilling engineering practice of Luan mining area in China, the author determines the safe drilling fluid density range for the stable borehole wall based on borehole wall collapse and fracture pressure ...
YULIANG GUO +5 more
doaj +1 more source
REAL TIME OPTIMIZATION OF DRILLING PARAMETERS DURING DRILLING OPERATIONS [PDF]
Real-time optimization of drilling parameters during drilling operations aims to optimize weight on bit, bit rotation speed for obtaining maximum drilling rate as well as minimizing the drilling cost. The process is considered to be formation specific.
Tuna Eren, M. Evren Ozbayoglu
openaire +3 more sources
Drilling to relieve pressure is a simple and efficient solution to prevent impact ground pressure for the engineering problem of the high risk of impact on the surrounding rock of high stress roads, and choosing suitable drilling parameters is the key to
Ping Wang +4 more
doaj +1 more source

