single-seed drilling

Prospects for Drilling Fluid Technology Transformation of Single-pipe Equipment for Measuring Liquid Position of Vacuum Filter

钻井液技术展望过滤机液位测量

Outline to the Design of Convertible Drilling Machine for DDJ Cast Aluminum Bus Bar with Single and Multi Hole

DDJ铸铝母线单孔&多孔两用钻床设计概述

Based on an investigation in the status of slim hole bit at home and abroad, a series of small-size(φ 92.08~ 158.75 mm) single cone bits with bottom water course are developed for slim-hole drilling.

根据国内、外小尺寸钻头的研究和使用状况，研制开发了9208～15875mm（3～6英寸）的小尺寸下水眼式单牙轮钻头系列产品。

The broad application of directional drilling has brought some difficulty to the net pay thickness determination for single well during the reserve calculation with volumetric method.

定向井技术的广泛应用，给容积法储量计算时单井有效厚度的确定带来一定的困难。