Traditional rotary drilling methods for crude oil and natural gas extraction pose significant
challenges and costs. To address these challenges and reduce drilling expenses, oil …

Laser drilling is capable of reducing drilling costs and time. In laser drilling, a high rate of
penetration (ROP) can be achieved, and the hole is cased due to laser interaction once it is …

Application of advanced high power laser technology to oil and gas well drilling has been
attracting significant research interests recently among research institutes, petroleum …

5,396,805 A 3/1995 Surjaatmadja 2005/02725 14 A1 12/2005 Bissonnette et al. 5,413,045 A
5, 1995 Miszewski 2005/0282645 A1 12/2005 Bissonnette et al. 5,479,860 A 1, 1996 Ellis …

Methods, systems, and devices related to downhole wellbore operations, such as drilling
and completing wells in an earth formation, include a laser device. A first portion of a …

There are provided high power laser connectors and couplers and methods that are capable
of providing high laser power without the need for active cooling to remote, harsh and …

The present invention relates to methods and apparatus for making in situ thermal property
determinations utilizing a heat source employed in wellbore stabilization procedures, well …

Mechanical drilling is facing increasing challenges in exploiting energy stored in deep and
hard formations. Laser irradiation has emerged as a novel drilling method with a large …

Laser rock-breaking will produce cracks on the rock, and the cracking of the cracks affects
the efficiency of laser rock-breaking. In this paper, the laser rock-breaking experimental …

Related US Application Data application No. 13/565,345, filed on Aug. 2, 2012, now Pat. No.
9,089,928, said application No. 13/966, 969 is a continuation-in-part of application No …