In the key petroleum engineering technology, facing the technical monopoly of foreign companies, the Academy of Engineering, with the courage and courage of "challenging foreign companies, breaking the technical monopoly and creating the' China version' international advanced technology", aimed at the engineering technical bottleneck in oil and gas exploration and development and made bold innovations. It took only six years to overcome many world-class problems and created five core technologies such as shale gas development and environmental protection, and seven projects such as deep well as ultra-deep well drilling and completion. It has played a decisive role in the exploration and development (northwest, north China, northeast, Sichuan and overseas oil fields) of China Petrochemical Company, and achieved scientific and environmental protection in exploration and development.
Innovating strategic thinking and cultivating first-class scientific and technological team
Looking at the domestic petroleum engineering technology market, in some key technical fields, foreign engineering technology occupies a dominant position, which is not only expensive, but also the effect of some technologies in the application process is not ideal. The thinking and understanding of the leading group of the Academy of Engineering are highly unified: to catch up with the international advanced, we must change the concept of over-reliance on foreign technology, establish the concept of "taking me as the main", innovate the strategic research ideas, and cultivate the first-class petroleum engineering technical team.
According to the "Twelfth Five-Year" development strategy for the upstream of China Petrochemical Company, the Academy of Engineering has established the overall development idea of "taking scientific research as the leading factor, technical support and product research and development as the two wings, focusing on long-term and coordinated development, leading and accelerating the technological progress of petroleum engineering in China Petrochemical Company". Lu De Bao Ping said that only by grasping the development direction of major engineering technologies, strengthening innovation in technologies and methods, cultivating core technologies and characteristic technologies, perfecting engineering technology series around the demand of oil and gas exploration and development, solving key technical problems in oilfield production, strengthening technology carriers and developing high-tech products can we enhance core competitiveness.
During the "Twelfth Five-Year Plan" period, the Academy of Engineering has made great efforts to do a good job in five aspects: First, it has made great efforts to play a good role as a staff officer. Closely combined with the upstream development strategy of China Petrochemical Company, it plays an advisory role in engineering business expansion, competition, major research directions and major technical equipment. The second is to focus on infrastructure construction. Do a good job in the development planning of laboratories and pilot bases to realize the sharing of software and hardware resources; Improve experimental instruments and key equipment; Promote the integration and application of data and resources in information construction. The third is to pay attention to technological innovation. Break through a number of key engineering technologies with strategic and revolutionary significance to lead and accelerate the progress of petroleum engineering technology; Solve practical engineering problems in oilfield production and develop high-tech products. The fourth is to focus on the transformation of results. Accelerate the transformation of achievements, form realistic productive forces as soon as possible, enhance the transformation effect of research achievements, and give play to the role of engineering technology in promoting and ensuring exploration and development. According to the strategic deployment, the Academy of Engineering has determined the scientific and technological research target area and "five major battles" of "Three Norths, One Sichuan and One Overseas", with the Tarim Basin in the northwest, Daniudi gas field in Ordos, North China, Puguang gas field in Sichuan and overseas blocks as the key points of engineering technical support and support.
The Academy of Engineering focuses on the layout and strategic planning of oil and gas exploration and development of the group company, focusing on the construction of scientific and technological teams. Strengthen discipline construction, give play to the organization and guidance role of chief experts, deputy chief teachers and senior experts, pay attention to cultivating young and middle-aged technical backbones, and form a scientific and technological innovation team with reasonable professional structure and talent ladder. Establish and optimize research institutes and R&D centers, steadily promote the management of QHSE management system, key laboratories, platform bases and key projects, and achieve the predetermined goals. More than 20 kinds of carriers in four categories, such as tools and instruments, oilfield additives, engineering software and operating procedures, realize industrial production and application.
Cultivate core technology and break foreign monopoly.
To break the monopoly of foreign technology, we must first catch up with the key core technologies.
The Academy of Engineering regards shale gas exploration and development as a new breakthrough in petroleum engineering technology, and has achieved a major breakthrough in supporting technologies for unconventional oil and gas engineering. Under the unified organization of the Science and Technology Department of the Group Company, with the strong support of the Oilfield Division and the Petroleum Engineering Company, the Academy of Engineering has set up a leading group for shale gas scientific and technological research since 20 1 1, which has undertaken 75% of the key shale gas engineering technologies of China Petrochemical Company and carried out more than 20 technical research projects.
A number of core technologies have made breakthroughs, and more than 50 invention patents have been applied, basically forming a shale gas engineering supporting technology with 2000-meter horizontal well drilling and completion and 20-level fracturing capacity. It provides effective engineering technical support for shale gas exploration breakthrough in China Petrochemical Company.
The Institute has basically formed supporting technologies for unconventional projects with independent intellectual property rights. It has broken through the technical problems such as obtaining rock mechanical parameters of shale formation, fracture identification and prediction technology, and description of shale reservoir engineering characteristics. The performance of the self-developed oil-based drilling fluid system with low viscosity and high shear has reached the international advanced level, and it has been successfully applied in 3 wells, including 2HF well in Ye Peng, creating the longest record of horizontal displacement of shale gas horizontal wells in China. The Institute also participated in the national strategic plan for shale gas development, which was well received by relevant state departments and became an outstanding representative of shale oil and gas development of China Petrochemical Company.
In addition, the drilling and completion technology of deep and ultra-deep wells has developed rapidly, setting many world records; The drilling and completion technology of complex structure wells has set a world record; The support effect of special reservoir identification and reconstruction technology is remarkable; Research and reserve deep well drilling and completion engineering technology. The innovative research and cultivation of core technologies have laid a solid foundation for the rapid development of the Academy of Engineering.
Create characteristic technology and provide environmental protection support
Characteristic technology is a unique skill in petroleum engineering technology. The Institute of Engineering combines indoor research with the actual situation of the well site, and conducts research and exploration for different areas, different strata and different well conditions, forming a unique technical series. Some characteristic technologies have played a technical supporting role in realizing green exploration and development.
In terms of special drilling fluid technology, the ultra-high density cement slurry system of 3.00 g/cm3 was independently developed, and the application density in Guanshen 1 well reached 2.82 g/cm3, setting a world record. The self-developed PFL, an anti-high temperature filtrate reducer, has solved the technical problems such as high temperature aging of drilling fluid system and difficult control of water loss. The new polyamine drilling fluid system independently developed has been applied in more than 20 wells in Tahe and Yubei. An environment-friendly drilling fluid system with temperature resistance 150℃ was developed and successfully applied in Xinjiang and Shengli work areas. The developed speed-up drilling fluid system has been successfully applied in Tahe Li 602 well, Jin 1-2 well and Shunbei 1 well, ensuring the speed increase of Shunbei 1 well by 54%.
Among the cementing technologies in complex formations, the developed low-density cement slurry cementing technology has been applied to Yuanba 104H, QG4 and other 15 wells around Tahe, and the excellent and good rate of cementing quality is 100%. Research and development of styrene-acrylic emulsion anti-gas channeling cement slurry system, high-temperature anti-gas channeling emulsion cement slurry cementing technology, high-density cement slurry cementing technology and pulse vibration cementing technology have solved a number of key cementing technical problems.
In the aspect of leakage prevention and plugging technology, aiming at the problems of stratum leakage, collapse and block falling in northwest, north and southwest regions, a low-density chemical plugging agent was developed and applied to the Ordovician malignant leakage stratum in Tahe, and the success rate of plugging was increased by 50%. A new plugging technology of chemical thixotropic consolidation was developed, which solved the plugging problem of more than 20 malignant lost wells such as Tahe TH 1 231,Shunxi No.2 and Chengde Yuanji1.
In addition, the comprehensive performance index of electromagnetic wave measurement while drilling technology developed by them has reached the international advanced level. In terms of rotary percussion drilling technology, various specifications of hydraulic jet impactors suitable for medium and hard formations have been successfully developed, which has improved the rock breaking efficiency and been applied in more than 60 wells at home and abroad, and the results have reached the international leading level. In terms of logging data engineering and drilling application technology, the self-designed online oil and gas detection system has reached the international advanced level, established the domestic leading logging interpretation methods for complex reservoirs with low resistivity, low permeability and fractures, and developed the logging interpretation technology for two-dimensional horizontal wells. In terms of information and petroleum engineering decision-making technology, the drilling engineering decision-making support system is developed, and the network collaborative conference system and the drilling decision-making support application library are established. The developed fracturing data acquisition and transmission module has good application effect, which lays the foundation for establishing an integrated petroleum engineering decision-making support system.
Undertake national projects and play a greater role.
In the research of national projects, the Academy of Engineering has carried out research on key technologies of marine carbonate oil and gas wells and complex formation wells in oil and gas-rich areas in the Middle East, and achieved a number of important results.
"Research on key technologies of marine carbonate oil and gas wells" has made breakthroughs in six aspects: wellbore environmental monitoring, medium and large plugging, safe and rapid drilling, anti-corrosion and low-density cementing, staged acid fracturing of ultra-deep horizontal wells, and secondary reservoir identification. The research results of this stage have been tested and applied in Xinjiang and Sichuan. The success rate of one-time plugging is 93%, the hole diameter enlargement rate in complex formation is reduced by more than 50% compared with last year, the average drilling cycle in Makaiti area is shortened by 34.5%, the success rate of staged acidizing and fracturing in Tahe ultra-deep horizontal well is 100%, and the coincidence rate of logging interpretation in second-class reservoir is over 80%. Cementing technology in complex formation has reached the field application level.
The research on "Key Technologies of Wellbore in Complex Strata in Middle East Oil-gas-rich Area" has formed "four technical series, ten core achievements and six innovative contents". The timely application of the research results in Iran Yada Oilfield has effectively solved the complex problems such as differential pressure sticking, increased the penetration rate by 37%, initially solved the complex asphalt problem, and achieved the success rate of 100% acid cementing and reservoir reconstruction, with remarkable economic and social benefits.
The research of "Model 3000 fracturing equipment research and development and application demonstration project" has formed the prediction and optimization method of fracturing, acidizing/acid fracturing construction parameters for different types of ultra-high stress reservoirs. A complete set of field simulation software for fracturing equipment has been developed, and the fracturing operation specification for 3000 fracturing truck sets in unconventional oil and gas reservoirs has been formed. It has been successfully tested in the rubber industry 1-3HF well and Yeding 2 well, and the overall fracturing design and construction comprehensive rate is over 90%.
Basic prospective research. Other disciplines related to engineering technology were investigated and transplanted. More than 40 researches in four directions, including new theories and methods based on geological environment identification, intelligent technology based on closed-loop control, new materials and new systems based on chemical monomers, and risk-free drilling technology based on technical information, have laid the foundation for the exploration and research of new technologies and new processes.