No abstract

Hydraulic fracture to oil well, creating fracture in the bottom stratum, making the crude oil flow to the bottom along the fracture are common stimulation treatment used in oil field. Controlling fracture height fracturing is controlling the extension of fracture within oil layer area, which is the key to success or failure of hydraulic fracturing. Especially, controlling fracture height to avoid pressing to wear the near water layer, which causes a sudden increase of oil water production, is particularly important to oil production. Fracture extension theory and field practice indicate that in controlling fracture height fracturing process, the fracture height extension is related with reservoir stress difference of oil layer and adjacent barrier on a certain scale of construction also it is related with the 8 parameters such as the rock Young's modulus, fracture toughness, Poisson's ratio, permeability, reservoir thickness, fracturing fluid viscosity and fluid loss coefficient and so on. This study introduces uncertain multi-attribute decision making method to the well needing controlling fracture height fracturing, takes expected minimum fracture height as the target, concentrates the 8 attribute values of oil well with OWA operator, obtains comprehensive attribute value, and sorts the expected oil well fracturing effect according to the size of comprehensive attribute value, then selects construction well according to the sort results. In this way, it not only solves the difficulty to accurately resolve fracture height of analytical method and problem of large calculation of numerical method, also provides a simple and practical method for live well selection. According to fracturing selection of Changqing oil field 5 wells and on-site application comparison of 2 wells, it is consistent with the prediction result.

With the rapid development and the universal application of computer network communication technology, image compression processing technology and transmission technology, Developing steps of intelligent, network, information and digital about university becomes faster and faster. It is very important for university safety work to construct a intelligent network video monitoring system. A full function system based on H.264 standard and character of security-monitoring work is designed. real-time monitoring and dynamic video are realized for key region of campus in this system, at the same time remote monitoring is realized by means of monitoring platform established by internet.

As the estimating of natural gas consumption can provide a better guidance target to gas production and market development ,its accuracy is playing an extremely important role in both the reasonable programming of oil and gas field development management and the promotion of economic benefits. This article builds a mathematical model of combinatorial optimization based on the natural gas consumption data of China, and solves it then by means of MATLAB .Compared with the actual value, the deviation of the combinatorial optimization worked out less than that in the single calculating method. When applied to the real production, this model can provide theoretical evidence to the programming of oil and gas development management and the adjustment of development project as well.

It starts at co-operation problem between different transportation enterprises, and sets up the Coordination Transportation concept with its management and administration model based on geography information system technology. Then it analyses and points out that its solution to shortest path may have the aid of intellect algorithm. Finally it studies and analyses the measurements during Coordination Transportation between deferent transportation enterprises. Coordination Transportation will help improve the style of transportation, and it will also help set up comprehensive transportation system in China.