This article examines learning-by-doing that is specific not just to individual firms but to pairs of firms working together in a contracting relationship. Using data from the oil and gas industry, I find that the productivity of an oil production company and its drilling contractor increases with their joint experience. This learning is relationship-specific: drilling rigs cannot fully appropr...

Oil and gas projects are at high risk the reasons can be adoption of complex technology, participation different parties, etc. industries often vulnerable to risks hazards, but they overcome these problems by following tools techniques management, which results in employee organizations safety. Based on facts, this research report aims evaluate identify management strategies procedures assess e...

The innovation point of this study is to customize the scheme for enterprises and combine needs new era. It not only a single adjustment marketing terminal, but also an integration reconstruction brand. strives help Wantong Gas Co., Ltd. develop strategy that fits characteristics era, adapt internal external development environment, take improvement core competitiveness as ultimate orientation....

a dissolved methane sensor based on silicone tube was designed, constructed and optimized.the silicone tube diameter, silicone tube length and helium flow rate (as the carrier gas(were considered as process parameters to be optimized.a continuous stream of helium (50 ml/min) was directed through the tubing, sweeping out the dissolved methane which diffused through the walls of the tubing from t...