China s first hydraulic rock drill

In 1986, Lianhuashan Drilling Tools Co., Ltd. introduced a full set of HYD200 hydraulic rock drill production technology from France Secoma Company and successfully produced China's first hydraulic rock drill. [pdf]

Appearance of South African hydraulic rock drill

This paper examines the new water-hydraulic (hydropowered) drill rigs that have been developed and proven in the last decade primarily in tabular, shallow-dipping, narrow-reef hard-rock South African mines. [pdf]

Lishui rock drill appearance

In the , patterns of sea "waves breaking against rocks" were already in use in the Emperor's in the early 16th century in order to create a cosmic landscape for the imperial dragons. Other forms of court robes in Ming dynasty worn by nobles, officials and their wives (such as the bufu, i.e. robe with mandarin square) also used ocean waves patterns in the form of co. [pdf]

FAQS about Lishui rock drill appearance

Do we know the source rocks in the Lishui SAG?

However, the knowledge of source rocks is limited to a few locations of previous drillings. Therefore, we proposed integrating borehole (sedimentary facies) and seismic data to determine the location and thickness of the source rocks in the Lishui Sag, China.

Does Lishui SAG have high oil potential?

Lishui Sag is currently in the early stages of exploration and research, so the history of drilling production is short. Compared with the other sags on the East China Sea shelf basin, the Lishui Sag has been theorized to have high oil potential. However, the current exploration and development status is not optimistic.

What are the best plays in Lishui SAG?

Jiang ( 2003) analyzed oil-bearing prospects of the East China Sea shelf basin and showed that the best plays in Lishui sag may be the structure zone in the southern part of west sub-sag and the west slope in the northern sag.

Is Lishui sag a good place to explore oil & gas?

The Lishui Sag, situated at the East China Sea Shelf Basin, is regarded as one of the most prospecting oil exploration zones. Low exploration in this region requires detailed identification of source rocks to enhance further oil and gas exploration.

What is drilled sedimentary strata of Lishui SAG?

Presently, the drilled sedimentary strata of Lishui sag is mainly from upper cretaceous to quaternary system, which developed four times sedimentary discontinuity and regional unconformity, that is, upper Cretaceous/Underlying strata, Palaeocene/upper Cretaceous, Eocene series/Palaeocene, and Miocene/Eocene series unconformity.

Is Lishui sag a Palaeocene rifted basin?

The Lishui Sag is a Palaeocene rifted basin influenced by the convergence of the Eurasian, Pacific, and Philippine Sea Plates (Li and Zhu, 1992; Zhou and Sun, 2017; Li et al., 2019; Liu et al., 2021).