Abstract Petroleum Machinery Company under the Fuling shale gas development needs, customized high-key equipment, provide support June 22, at page 28 coke coke dam platform, more than 800 tons of ZJ50D stepping shale gas development speed and efficiency The rig is equipped with intelligent mechanical feet, in the remote control...
According to the development needs of Fuling shale gas, Petroleum Machinery Co., Ltd. customized high-end key equipment to provide support for shale gas development and speed improvement. On June 22nd, on the No. 28 platform of Jiaoshiba Jiaozuo, more than 800 tons of ZJ50D step-drilling rigs were equipped with intelligent mechanical feet. Under the command of the remote control, the well was completed from the focal point 28-4 to the coke. Page 28-1 "self-propelled walking". The overall relocation time of the rig was shortened from the conventional 5 days to 3 hours, and the rig was relocated on the same day as the rig was moved.
"With them, shale gas development will be more secure in the future," said Jiang Hongliang, manager of the new technology promotion department of the Machinery Research Institute of Petroleum Machinery.
According to the topography and geomorphology of the Fuling area, the petroleum machinery company has carried out innovative research and development of key equipment and tools. It has completed the localization of many major core equipments such as drilling rigs and large-scale complete fracturing equipment, and established equipment suitable for China's unique shale gas resources. The system provides domestic high-end equipment support for shale gas development.
Using innovative technology to develop high-end drilling rigs
The Fuling national shale gas field is the first self-installed shale gas field in China. It uses the cluster well layout mode of 4 wells or 6 wells on each platform to mine. After all the well group drilling operations are completed at one time, the whole test gas is handed over. Put into production process, put forward higher requirements for drilling rig technology.
At the beginning of the construction, the engineering team used conventional oil drilling rigs of more than 4,000 meters for cluster well drilling operations. It takes more than 7 days to complete the drilling rig, which is more than 15% of the well construction period.
"To achieve commercial development of shale gas, it must be low-cost and large-scale." The oil machinery company aims at the high-end technology of drilling rigs, integrates innovation research and development with production, increases research and development efforts, and develops well-wheel-wheel-type and step-type drilling rigs that can be quickly moved and operated efficiently.
On May 23, on the No. 30 platform of Jiaoshiba Jiaozi, a 5,000-meter wheel-rail electric drilling rig was translated from the focal point 30-1HF well to the focal length 30-4HF well 10 meters apart, only 57 minutes. Compared with the conventional relocation method, it saved 6 days.
The well position distribution of the Fuling shale gas drilling platform is mostly triangular, diamond-shaped and other layouts. The company developed a step-and-drilling rig that puts the "foot" on the rig, making it a steel giant that can walk freely. The overall movement of the rig can be completed in just 3 hours.
At present, 45% of the drilling rig equipment in Fuling is the company's products, and the electric drilling rig has become the main technical equipment of shale gas wells in China.
Develop personalized drill bits based on geological features
"At present, the company's market share in the roller bit market in Fuling is as high as 98%, the diamond drill bit occupancy rate is about 60%, and the screw drill is in short supply." Wang Xianzhong, sales manager of the petroleum machinery company Fuling Service Center, said that last year the diamond drill bit was in Fuling. The market share of the work area is less than 30%, and most of the markets are occupied by well-known foreign manufacturers.
The development of unconventional resources brings more demand to petroleum drill bits, and the adaptive development of drill bits is particularly important.
In view of the deep burial of the reservoirs in the Fuling area, the complicated geological conditions and the poor stability of the strata, the company has set up a project team that is led by the company's leaders and integrates the three aspects of “research, production and salesâ€. Technical difficulties such as broken teeth, fast wear, and easy-to-carry drills have been developed. Individualized diamond drill bits and equal-thickness screw drills have been developed to form a complete set of drill drill optimization solutions.
In the daily product development, the drilling time, footage, mechanical drilling speed and other factors affecting the drilling benefit are compared with the design valuation, and the wear of the blunt bit is evaluated and graded, the bit design and selection are continuously improved, and the localized bit market is expanded. Occupation rate.
Through technical breakthroughs, the drilling cycle of a straight section was reduced from 5 days to 1 to 2 days, and the drilling speed of the second section was nearly three times higher. The horizontal section “one drill†was successful in some well locations.
Green low carbon concept integrated into equipment development
In mid-June, the company developed 70 tons to 225 tons of pressurized working equipment and two sets of 160 tons of high-end pressurized working equipment, which was successfully applied in the operation of the coke dam belt.
Ding Yongwei, senior engineer of the company's mechanical research institute, explained that in order to develop pressure-bearing equipment suitable for Fuling shale gas well operation, the company has mastered high-pressure dynamic sealing technology, high-efficiency lifting rotation technology and intelligent safety control through three technical introductions and international cooperation research and development. Technology and equipment integration supporting technology, obtained one invention patent authorization, developed 70 tons to 225 tons of pressurized equipment, two sets of 160 tons of high-end pressure equipment.
In the process of research and development of domestic equipment, the company integrated the concept of green low-carbon environmental protection into equipment R&D and application, combined technology introduction with independent innovation, developed a large-capacity coiled tubing equipment adapted to the operation of mountain well factories, and launched a series of high-pressure large-displacement solids. Well equipment, providing equipment support for high-quality and high-efficiency cementing, effectively preventing environmental pollution caused by gas-liquid turbulence in the wellbore; researching and applying large-scale fracturing fluid processing equipment and oilfield sewage treatment equipment to realize the reuse of sewage waste liquid and Discharge.
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