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Mangya, China

Shuai P.,Hailar Petroleum E and P Headquarters | Chen J.,Hailar Petroleum E and P Headquarters | Huang X.,Testing Company | Liu Z.,Testing Company | And 2 more authors.
Well Testing | Year: 2013

With the deepening exploration and development process of the Hailaer oilfield, in order to improve the oilfield development effect, numbers of slope well, high angle well, horizontal well are increasing year by year. Most of these Wells have long slope bottom hole and large displacement, which bring many difficulties to the operation. Firstly, tool wear greatly, and in the inclined section of plastic tube is easy to wear and tear and loss of seal; Secondly, because of the influence of slope well rounded leg of tool length and diameter is better than vertical Wells have strict requirements; Moreover is carried out in a single slope rig construction technology has a certain risk, implementing a technology risk is bigger, the league as a process than a single construction technology in security, reservoir protection, grassland has obvious advantages in environmental protection, etc. To solve above problems, on the basis of summary of slope well construction experience, developed is suitable for the slope well fracturing and hydraulic pump fast flow-back united as a process, in Huo3-X4 well, BeiX64 well inoue a successful implementation. After the successful implementation of the technology for high Angle well, horizontal well on implementing a technology laid a solid foundation, provides a technical support in Hailaer oilfield development product. Source

Li M.,Yangtze University | Li M.,Testing Company | Zhang Z.,Testing Company | Wu C.,Testing Company | And 3 more authors.
Well Testing | Year: 2015

Along with the development of injection technology in Qinghai oilfield, the original plugging type double probe and load line type double pressure test sealing technology has many inadaptability in the sealing test of bridge eccentric and free throw out of concentric separate injection, therefore, the ground direct reading test sealing apparatus with the carrier of cable is developed. For using some new technology of the ground control, electric seal and real-time monitoring, it can overcome the disadvantages of great labor intensity lead by tedious processes for traditional wire operation inherent down-hole testing, ground playback, data analysis, and down-hole complex measured, which reduces stuck accident ratio of seal checking apparatus. By piloting test in oilfield, it shows that work efficiency and the test recto time success rate can be obviously improved. ©, 2015, Well Testing. All right reserved. Source

Zhang H.,Testing Company | Li D.,Testing Company | Qiu J.,Testing Company | Wang Q.,Testing Company | And 2 more authors.
Well Testing | Year: 2015

The Gringarten and Bourdet's Typical Curve Fitting Method is the most widely used in early stage well testing interpretation whose effect is poor for low permeability reservoirs if the radial flow does not appear and more solutions to the formation parameters are got. According to the unique geological characteristics, a comprehensive early stage well testing interpretation methods (pressure build up well test interpretation method, based on the flow function method, simulated deconvolution method) is built up, and applied in 27 typical wells during 2010~2013 in Qinghai oilfield, that's unique applicability and strong reliability for complex geological condition of Qinhai oilfield is verified. By comparing with the geological information, the results supported the unique applicability and high reliability of the system for low permeability and complex nature reservoirs in Qinghai oilfield. Among them, based on the original pressure drop characteristics of well test synthesis method, the characteristics of pressure restore data comprehensive well test interpretation method is innovated by using the superposition principle. The application of this method improves the accuracy of the test data interpretation. ©, 2015, Well Testing. All right reserved. Source

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