The results of the multidisciplinary and multi-professional joint efforts in comprehensive petroleum geology, geophysical exploration, drilling, logging and testing technology have solved a series of complex mountainous oil and gas exploration problems in the Kucha area of the Tarim Basin, caused by the drastic topographic undulations, the varied lithology of the surface layer and the development of the underground retrograde faults. The company has solved a series of complicated mountainous oil and gas exploration problems caused by the strong topographic relief and variable surface rocks and the development of underground retrograde faults in the Kucha area of the Tarim Basin, and has formed a set of relatively mature exploration technologies applicable to the Kucha foreland basin. Technological innovations have been made in all aspects of seismic information acquisition and comprehensive data interpretation, which have improved the accuracy of tectonic mapping; the drilling technology of ultra-high-pressure layer and ointment-salt layer has been conquered; and the technology of geologic modeling and description of high and steep complex tectonics and high-pressure oil and gas reservoirs in the foreland basins as well as the comprehensive petroleum geology evaluation technology have been researched and developed. As a result, the characteristics of oil and gas fields (reservoirs) and their distribution patterns in the backwash zone of the Kucha foreland basin have been summarized, guiding the practice of oil and gas exploration in the area. *** Discovered and implemented 46 various types of circles, provided 26 drilling wells, and the success rate of exploratory wells reached 50%. The discovery of the Clarke 2 gas field (250.61 billion cubic meters of proven natural gas reserves), as well as a number of natural gas fields such as Yinan 2, Tuzi 1, Dabei 1, Clarke 3, etc., provided the resource base for the "West-East Natural Gas Pipeline" project.
2. Research on natural gas enrichment law and exploration technology in the upper Paleozoic of Ordos Basin and discovery of Suligmiao gas field
Through the analysis of sedimentary history, tectonic development history and Paleozoic evolution history of the basin, it summarizes that Ordos Basin has the characteristics of dense sandstone gas fields and deep basin gas fields with large area of extensive overburden gas and water throat seals. In-depth research on the geological conditions for the formation of large gas fields in the Upper Paleozoic of the Ordos Basin, the process of formation of rocky gas reservoirs and deep basin gas reservoirs, the distribution law and the conditions for high production of medium and high permeability layers; through the research and development, nine sets of comprehensive supporting technology series, mainly including basin analysis and simulation, reservoir lateral prediction, comprehensive description of gas reservoirs, etc., were formed, and the total natural gas resources in Upper Paleozoic were reevaluated to be 6.76-10.3 trillion cubic meters, which exceeded the original evaluation. Trillion cubic meters, more than three times the original evaluation, providing a scientific basis for further exploration.
The scientific and technological research is closely integrated with the exploration practice, and through the drilling of the five favorable detailed exploration areas and pre-probing areas, the atmospheric fields were found in Surigmiao, Yulin and Uttarakhand. In Yushu District 6000 square kilometers exploration area and Wutian Banner 7200km2 exploration area, have been proved natural gas reserves of more than 100 billion cubic meters of atmospheric field; especially proved the Suligmiao atmospheric field, in the 20,000km2 exploration area, has been proved natural gas reserves of 220.4 billion cubic meters, the control of reserves of 100 billion cubic meters, the predicted reserves of 2013 billion cubic meters.
3. Stable Production Technology for Daqing Oilfield with Annual Production of 53 Million Tons to 2000 Years
Formed the technology of fine description and identification of thin and poor oil reservoirs in the late stage of high water content in Daqing Oilfield, established the three-dimensional quantitative geological model of various types of reservoirs in Daqing Oilfield, and used multi-disciplinary technology to study the mechanism of residual oil formation, and established the method of comprehensive quantitative description of various types of residual oil and gas. It has further improved the compliance rate of inter-well parameter prediction of reservoirs, the compliance rate of residual oil prediction, and the compliance rate of logging resolution and interpretation of water-flooded layers. On this basis, a set of effective residual oil dredging technology has been formed. Three times encryption single well increased recoverable reserves by 5,000 tons, and it is expected that 7,000 wells can be drilled. It is estimated that the recoverable reserves have been increased by 24.87 million tons.
Formed the Daqing peripheral low-permeability reservoir oil and gas rich area screening, economic recoverable reserves evaluation techniques and methods, providing more development of the block. Low permeability oil field test block oil recovery rate of 1.2%. Significantly reduced the investment in the construction of one million tons of production capacity. Daqing oilfield polymer injection extractive fluid efficient treatment and dynamic monitoring technology; polymer injection system localization and polymer pipeline maturation technology; depth profiling technology, increased million tons of oil recovery investment costs than the "8.5" decreased by more than 15%. The investment cost of increasing million tons of oil recovery volume is more than 15% lower than that of the "8th Five-Year Plan". By the end of 2000, the annual oil recovery of low-permeability oilfields reached 4 million tons, and the annual oil production of polymer injection was more than 8 million tons, realizing the goal of 53 million tons of steady annual production of Daqing Oilfield.
4. GRISYS/WS-V5.0 Seismic Data Processing System and KL Seis 1.0 Seismic Acquisition Engineering Software System
GRISYS Seismic Data Processing System GRISYS/WS-V5.0 is a new generation of seismic data processing system, which is based on the GRISYS/WS-V4.0. On the basis of GRISYS/V4.0, GRISYS/V5.0 has innovated and developed new technologies such as high-resolution processing software package, interactive refractive wave static correction software package, interactive fine velocity analysis software package, VSP processing software package, and interactive reservoir synthesis software package, etc., so that it is more adaptable to the exploration of thin interbedded reservoirs of China's onshore basins and the exploration of hydrocarbons in the complex surface areas in the west of the country. After the data processing in Daqing, Liaohe, Shengli, Xinjiang, North China, Erlian, Central Plains, Henan, Dianqian and Gui, etc., all of them have achieved good results and provided the main technical support for the discovery of Kara 2 gas field. At present, 60 sets of this system have been installed, creating a direct economic benefit of more than 24 million yuan and saving a lot of costs for the introduction of foreign software.
KLSeis 1.0 is the first set of acquisition system software in China that covers the whole process of seismic field data acquisition, with advanced methodology, complete functions, and wide applicability. KLSeis 1.0 is the first set of acquisition system software in China that covers the whole process of seismic field data acquisition with advanced methods and complete functions and is widely applicable. At present, there are 16 companies specialized in physical exploration under China National Petroleum Corporation, Sinopec Group Corporation, and Offshore Oil Corporation, which are equipped with the system software, and the system is widely used in nearly a hundred sets of applications, with remarkable technical and economic benefits.
5, side drilling horizontal well drilling and extraction supporting technology
The establishment of the conglomerate reservoirs, thick oil, high condensate reservoirs side drilling horizontal well design reservoir engineering methods, including the development of the development of the block quantitative description of residual oil, the side of the drilling horizontal well mining mechanism and the application of numerical simulation technology research, as well as side of the drilling horizontal well mining effect evaluation methods, etc.; in drilling technology, through the establishment of drilling trajectory model, summarized the principle of side drilling window, and the drilling of the drilling trajectory model. In terms of drilling technology, by establishing drilling trajectory model, the company has summarized the principles and methods of sidetrack drilling window opening, borehole trajectory control technology, downhole drilling column abrasion resistance, stability, compatibility, drilling tools and their inclination capacity, etc., and developed application software to guide the drilling construction; and innovated well completion and oil recovery process technology according to the conditions of different formations. With the application of the above technologies, 8 horizontal wells have been completed in Xinjiang conglomerate block, and the initial daily oil production is 2.5 times of the daily production of the original well, which is 2.4-3.9 times of the average daily production of the block. In Liaohe Oilfield***, 11 horizontal wells were completed for thick oil exploitation, and the average daily production was 2 to 4 times of the original well production, achieving obvious economic benefits.
6, micro-resistivity scanning imaging logging system
Micro-resistivity scanning imaging logging instrument can measure the non-homogeneous features of downhole stratum (cracks, cavities and laminations, etc.), structural features and tectonic features, which is an important means for sedimentary phase analysis, quantitative evaluation of cracks, core comparison, thin layer delineation, and non-homogeneous oil and gas reservoir exploration. In the past, foreign equipment and services have been introduced. The system has been successfully developed and 4 wells have been tested and logged on site in Daqing and 4 wells have been logged in Dagang, and the compliance rate of fracture identification and geological feature delineation reaches 95%.
This achievement is the first imaging logging instrument independently developed in China, and the instrument (system) design adopts a number of advanced technologies, such as adaptive high-temperature pressurized sealing plate, time-sharing multi-waveform wave sampling of electric buckling signals, acquisition software platforms, and ground interfaces with ****-enjoyment memory technology
7. Cracked gasoline hydrogenation catalysts
The company has developed a series of first and second-stage catalysts for cracked gasoline hydrogenation, which are currently available in the form of a series of catalysts.
We have developed a series of cracked gasoline hydrogenation one-stage and two-stage catalysts, and a variety of grades have been realized for industrial application, replacing imports, and achieving good economic and social benefits.
The high load cracked gasoline hydrogenation catalyst LY9801 is characterized by high operating airspeed, good hydrogenation activity, good selectivity, low carbon accumulation and good regeneration performance, which is able to meet the purpose of expanding the production and increasing the efficiency of the ethylene producers without changing the existing equipments or changing them to a lesser extent. The catalyst has been applied in Jihua, Zhongyuan, Yanhua, Daqing, Shanghai Jinshan, Lanzhou Petrochemical, etc. The catalyst can also be used in C5～204℃ cracked gasoline, full distillate one-stage hydrogenation, and high gum cracked gasoline (feedstock gum of 30～60mg) hydrogenation. Since its industrialization, the catalyst has generated a cumulative total of nearly 40 million yuan, resulting in significant economic benefits.
LY9802, a catalyst for two-stage hydrogenation of high-load cracked gasoline, can increase the operating airspeed from 2.8 h-1 to 4.5 h-1. The catalyst was industrialized in Jinshan, Shanghai in July 2000, and can be successfully applied to other manufacturers, with considerable social and economic benefits.
The catalyst LY9702 can be used in the hydrogenation of cracked gasoline with a total sulfur content of 30 to 1100 ppm, and has been used by Yangzi, Panjin, Jihua, Maoming and other manufacturers.
8. Development and production of one-crossing and one-roasting super-stable molecular sieve and LANK-98 catalyst
The preparation process of this molecular sieve is characterized by simple production process, high yield, low cost, etc. At the same time, the catalysts prepared with one-crossing and one-roasting molecular sieve are characterized by high activity, good selectivity, good conversion of heavy oil and strong anti-pollution ability, etc.
One-crossing and one-roasting molecular sieve has a good selectivity, good heavy oil conversion ability and strong anti-pollution ability.
One-crossing and one-roasting super-stable molecular sieve and new type of high-activity monomer cooperated to produce LANK-98 catalyst, which has high activity, the stack ratio can be adjusted in a wide range, and has very good pore distribution gradient, which is good for cracking macromolecules, and it is not only adapted to the catalytic device of heavy oil, but also adapted to the catalytic device of wax oil blended with residual oil. The results of the application of this agent in the second catalytic unit of Dalian Refining and Chemical Company show that the comprehensive performance is better than imported catalysts. At present, the agent has been sold to 19 refineries in China, with a sales volume of 5,500 tons, creating an economic benefit of more than 30 million yuan for the refineries.
9, ZJ70D DC drive drilling rig
ZJ70D drilling rig is the first 7000m ultra-deep well drilling rig developed by China's petroleum system. The rig is designed and manufactured according to SY/T 5609 "oil rig type and basic parameters" standard and relevant technical requirements, the main components in line with the U.S. API specifications. Its main technical parameters are: nominal drilling depth 7000m (41/2in drill pipe) ~ 6000m (5in drill pipe); maximum hook load 4500KN; maximum column weight 220t; winch maximum input power 1470kW (2000hP), 4-speed stepless speed; lifting system rope system 6 × 7, rope diameter φ38mm: mud pump power 2 × 1180kW. Turntable opening diameter 925.5mm (371/2in), 2-speed infinitely variable speed; derrick for the front opening type, 45m high; drilling platform for the double-lift type, 9m high. This drilling rig is the first one in China to adopt the domestically produced hydraulic disc brake, and the driller's control signal adopts the form of double-wire transmission, which improves the reliability of the control system.
The FK430-H well in Tarim Oilfield of Xinjiang Drilling Company was drilled safely to a depth of 6,090m by using ZJ70D drilling rig with 5im drill pipe, which reached the drilling depth designed by the drilling rig.
The rig has been ordered 11 sets and 9 sets have been delivered for production use, of which, Xinjiang, Changqing, Qinghai, Tuha, North China, Dagang, Zhongyuan and other oilfields have been put into use successively. The two sets delivered to Xinjiang were sent to Algeria and Iran for drilling in 1999 and 2000 respectively, and the ZJ70D drilling rigs in Changqing and Qinghai were contracted to drill wells for foreign oil companies, which enhanced the competitiveness of China's drilling team in the international market. After the rig was put into production, the output value of 145 million yuan has been realized.
10, pipeline ring seam automatic welding technology and equipment research
Pipeline all-position automatic welding technology is the world's pipeline welding (especially long-distance pipeline) is an important technology, involving machinery manufacturing, welding, computer control and digital signal processing and other technical fields, requiring advanced equipment, welding efficiency and good quality. PAW2000 prototype development was completed, the total number of 3,000,000 in the construction site. After the completion of the development of the PAW2000 prototype, a total of 3.3 kilometers of pipeline welding applications at the construction site, X-ray flaw detection rate of 96.5%; APW-1 prototype completed in Suizhong 36-1 pipeline welding applications, weld shaping beautiful, X-ray flaw detection rate of 98%, welding efficiency is three times the manual welding; the two prototypes. The expert assessment that the whole reached the international advanced level of similar equipment. PAW2000-type welding machine has produced more than 20 sets, equipped with three provinces across Qinghai, Ningxia, Gansu, Shibu Ninglan gas pipeline construction site.