Search results

Although these studies have a certain guiding significance for the practical engineering, but there is a relative lack of the study for the dual derrick on deep-water drilling rigs.
Introduction Compared with other offshore platforms, drilling ships have features such as the general transport ship shapes, flexible moving, simple berthing and so on, the water plane area is bigger than other platforms and the variation of variable weight (impermeable casing, drill pipe, drilling water, mud materials, cement and other drilling equipment weight) has lesser effect on the ship's draft.
Now in the respect of dynamic characteristics analysis for dual derrick, mainly depends on professional soft wares to proceed dynamic analysis, approximatively simulate the practical working conditions then check the stability of dual derricks by calculation as well as dynamics experimental research, which includes field experimental method and the scaling model experimental.
Looking medium scale jack-up platform as objects of study, K.G.Grenda [5] investigated dynamic response of derrick under the wave loads, the results shown that in the waters at a depth of more than 50m, wave load dynamic amplification factor had a potentially important effect.
However, there is a relative lack of the study for the dual derrick on deep-water drilling rigs.

These traumas can appear on the background of osteoporosis among patients of old and senile age and among children and active professional and amateur sportsmen as well.Trauma of ALC is one of the most frequent injuries in sport in general.
The possibility of return to professional sport after full ruptures of anterior cruciate ligament without surgery is no more than 20% according to Mironov S.P. et al.
The reconstructive surgery of anterior cruciate ligament among professional sportsmen can be executed right away after trauma, i.e. without period of conservative treatment.
The massage (handy, underwater), physical training in water (bath, pool), active electro stimulation are applied on this purpose also. 3rd stage lasts to 16th week.

In PCOC, amount of the oil, gas and water wells are over 50,000 and they are widely distributed, difficult to manage.
It was responsible for the whole process of oil, gas and water production from wellbore to joint station.
Production management system, with oil and gas basic production unit process control as a core, was focused in single well, pipeline and station (tank) and etc. basic production unit process control and management, which provided data to middle terminal and post terminal. 2.1.1 Digital management of well site ① Data acquisition: Real-time data acquisition including oil well loading and displacement, pumping unit three-phase electrical parameters, pipeline pressure, pressure and quantity of water injection well, pressure of water injection valve, water withdrawal quantity of the source well and water pump three-phase electrical parameters. ② Monitoring: Intelligent video server. ③ Remote-control: Remote pumping unit start-up and shut down, remote control of water injection well, intelligent control of source well.
Digital management of station ① Data acquisition: Pressure and temperature of influent oil, liquid level of oil storage (water) tank, outlet and inlet pressure of oil transportation (water injection) pump, pressure and temperature of effluent oil, detection of flammable gas in station.
Technicians in operating zones, stations and wells got released from the daily production running and maintenance, thus made up of professional group to solve the key technical problems.

Distilled water was used through the experiments.
The lyophilized products were reconstituted by dilution with distilled water and shaking.
The mobile phase consisted of acetonitrile and water.
Prior to the experiment, the rats were fasted for 12 h with free access to water.
Statistical Analysis All pharmacokinetic parameters were calculated by DAS software (Ver. 2.0, Mathematical Pharmacology Professional Committee of China).

The blocks also exhibit remarkable resistance to sulphate attack, a common issue in soils and waters rich in sulphates.
Low Water Absorption: GMB have a significantly lower water absorption rate compared to traditional bricks or concrete blocks.
GMB are highly resistant to these cycles, thanks to their low water absorption and robust microstructure.
Promoting sustainable construction practices and educating the public and industry professionals about the environmental benefits of GMB can help drive demand and acceptance[45][46]. 5.3 Future Research Directions Addressing the technical and economic challenges of GMB will require focused research and innovation in several key areas: 5.3.1.
Sthapit, “Properties of soil-cement blocks manufactured using produced water from oil fields: A prelimnary investigation,” Int.

Initial volume of water in the aquifer. 4.
Critical water saturation The critical water saturation was set to be 30%.
Water cut greater than 60% 3.
Water injection 2.
Burlington, MA: Elsevier/Gulf Professional, 2006

The function and purpose of CASS7.0 CASS7.0 version compared to previous versions of a positive response to the "golden soil engineering" requirements, for the land survey, Land Boundary Survey need to develop a number of professional and practical tools, in addition to platform, the basic drawing functions were further upgrade [2].
Profile map is widely used in geological exploration, water conservancy and hydropower and line investigation.

Finally, analyzing and processing of experimental data can be done through the professional analysis software when signals are transferred to PC.
China Water Power Press, Beijing, 2006.

Introduction In modern structural design, professional finite element softwares are used widely for its powerful and efficient computing ability.
[7] Weijun Cen, Yueming Zhu: Advance in Science and Technology of Water Resources.

Using the professional vehicle modeling module -ADAMS/Car, we can quickly build precise vehicle virtual model, review the vehicle dynamical responses in various test conditions, and gain the characteristic parameters that symbolize handling stability, braking and safety by using animation controller and postprocessor[2] . 2.
Beijing: Press of China Water Conservancy and Hydroelectricity, (2008).