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Condensate water film corrosion.
Formation water often contains bicarbonate, which may increase the pH value of water phase and mitigate corrosiveness.
When water phase is continuous phase or condensate water is precipitated due to pressure and temperature lower than dew point, carbon dioxide is dissolved in condensate water and the water wets the tubing wall, thus aggravating corrosion.
In a gas well, the physical processes including water dissolving in gas and gas dissolving in water, and so on, will affect corrosion.
[2] Wan Renpu：Advanced Well Completion Engineering (Gulf Professional Publishing, U.S. 2011)

The monitoring center is made up of a computer with professional monitoring software.
System Design A number of groundwater observation wells are built in an important water source area in accordance with the rational distribution.
When the water level exceeds the allowable threshold range, the software will highlight the alarm location and send out a sound alarm.
Water Level Pressure Sensor DX130.
First the monitoring terminal gets the voltage value of the water level pressure sensor DX130, and determine if the water level beyond the scope of the default.

In addition, since the one-time and long-term characteristics of highway and water engineering, and the project cannot be reworked and reconstructed, total quality management theory by its own cannot improve large-scale projects.
Then, if faced with some technically sophisticated, difficulty and high-quality demanding programs in the project or those with new processes, technology, structure and material ones, analyze and point out those problems depending on large amounts of data and professional knowledge.
Geotextile and drain board installation Avoid waterproof layer leakage and water seepage.
Accurate position of Water Stop; other items and procedures meet the requirements of concrete engineering in bridging.
The weight coefficients for different objects are set according to the degree of concern, interests and professional competence, etc. for each object and link.

Soil Infiltration Base Flow Rivers Urban rainwater Surface water storage Surface water evaporation Soil water storage Surface water runoff Urban drainage pipelines Stream flows Prompt subsurface flow Groundwater storage Groundwater undercurrents Fig. 1: Diagram of cyclic process of urban stormwater [8] In the process of urban rainwater circulation, the surface water storage is a key part.
There are only two way of surface water, one could be the groundwater supplement and another turn to surface water runoff inflow into Urban drainage pipelines and finally flow into the rivers.
Surface runoff water is the major formation source of city flood.
In the practice management system for registered planners, the professional assessments for the planners also lack the requirements in rainfall flood ecological management and resource utilization knowledge.
Due to the size of the surface water storage capacity is the key link of the flood prevention.

Water contact angle test was done following ASTM D7334.
A micrometer syringe (GS-1200, Gilmont) at 3 mm from surface of coated coupon was used to dispense 20 𝜇l of deionized water.
Static water contact angles of (a) unfilled acrylic coating and (b) composite coating filled with alkoxysilane-treated aluminosilicate at 1.0%.
The increase in contact angle indicate decreased wettability and improved water resistance of the coating.
Papavinasam: Corrosion Control in the Oil and Gas Industry (Gulf Professional Publishing, London 2014) [7] B.

And involved professional models also increased great significantly.
OpenMI Development Background With the development of computer technology and deep research of water resources, many units of different related industries and different organizations in the same industry develop respective water information settlement and decision-making software.
Runoff models mainly include Xin’an riverⅡ water source model, Xin’an riverⅢ water source model, one-dimensional water tank model, two-dimensional water tank model, three-dimensional water tank model, antecedent precipitation influence runoff model (API model), vertical mixing runoff model, SCS runoff model, physical property model, etc; II.
Wang Jianping, male, Hydrology and Water Resource Master, specialized in flood forecasting system design and developing research.
RIZA Institute for Inland Water Management and Waste Water Treatment, The Netherlands,DHI Water &Enviroment,Demark

This is a new attempt, which maybe provides a theoretical basis or inspiration to professional technology research.
Engineering nodes include hydropower stations, reservoirs, and sluices, pumping stations, water transfer projects, comprehensive engineering and other water conservancy project facilities as shown in Fig. 1.
Nowadays, many large-scale water conservancy constructions, including reservoirs, hydropower station and water conservancy, have been built in Haihe River Basin.
These nodes reallocate of water resources.
For example, Huangbizhuang Reservoir is a large-scale water conservancy project, which mainly controls the floods and takes into account the comprehensive utilization of water usage, irrigation and power generation.

In 2010, the coverage of solar water heaters in Ningbo exceeded 700000 m2 with a stable growth rate of more than 10%.
The total installed power of air-source heat pump water heaters was more than 50MW, which remained stable growth
The air-source heat pump hot water system has been developed stably in Ningbo for recent years.
Moreover, it shall encourage professional agency institutions to tap into the new energy industry and provide high quality services to the new energy industry.
It shall advance the construction of the regionally professional market system, enhance key markets such as regionally professional markets, property trading markets and talent markets, speed up agglomeration of key factors, and promote the reasonable arrangement of these factors.

Practice teaching of Colleges of Finance and economics of the obvious characteristics of the social and economic environment is simulated using teaching software platform, training students in the depth of professional skills, to cultivate students' comprehensive ability to use knowledge in breadth.
Silver impregnated with sulfur silver layer can be directly sulfuration corrosion of silver sulfide, reaction is 2Ag+S→Ag2S (1) Dip also between silver layer and a copper foil the electrochemical corrosion, reaction is Anode: Cu→Cu2++2e− (2) Cathode: S+2e−→S2− (3) overall reaction: Cu+S→CuS (4) In high humidity and high sulfur environments, immersion silver surface layer to the bottom exposed copper lose electrons to form copper ions, but also exposed copper will continue to form ion into the outward diffusion of water film circuit board
Reaction formula: SO42-→2SO3+O2(g)+4e (5) 2H++2e→H2(g) (6) Precipitation of oxygen and hydrogen, with a molecular mass of sulfate, combined with water in the air to form mist, thus resulting in a high sulfur environment in the room.
Room in the design, due to cost considerations, the use of central air-conditioning, and without the use of special air conditioning room, does not have the humidity control function, plus room for building floor and windows of condensation water, resulting in engine room humidity is too big.

Manufactured and installed with ascending pipe lid of water seal, homemade tar box. 8.
This problem was solved by pouring a small amount of water.
More importantly, the practices give full play with the enthusiasm and creativity of the students, so that the comprehensive professional quality of students has greatly improved, in order to promote a virtuous cycle of education.
[2]Changzheng Gao,in:Journal of North China Water Conservancy and Hydropower College (2012) [3] Litvin Ivanovo, Yirun Cheng(Soviet Russia) ,in:Military knowledge 1974.12 [4] Xiaoqi Wang.