1. Sand prevention technology
The multi-layer sand control technology is currently the most complex and risky technology in the field of sand control. For many years, the domestic market has been monopolized by the two major oil service companies in the United States. FRD is the first company in China to have independent intellectual property rights for multi-layer sand control technology. MSC has been maturely applied in CNOOC, and many indicators have surpassed similar foreign technologies.
2. Intelligent well completion technology
The ICC intelligent completion technology originated from the National 863 Project<Key Technologies for Intelligent Completion of Deepwater Oil and Gas Fields>. Passed the acceptance inspection by the Ministry of Science and Technology in June 2017, and completed on-site testing in November 2016. This technology has obtained a total of 14 national invention patents.
Technology series: Intelligent oil production, intelligent water injection, intelligent oil testing, and horizontal well multi-stage intelligent oil production series, bringing about a revolutionary transformation in development methods
3. Fracturing technology
Fracturing technology is mainly divided into full bore ball sliding sleeve multi-stage fracturing technology and double sliding sleeve anti backflow fracturing technology
The advantages of multi-stage fracturing technology with full diameter ball sliding sleeve lie in:
Single size ball with large sliding sleeve diameter; The inner diameter is close to the inner diameter of the casing; Convenient for other tools to pass through.
No pumping, pump shutdown, waiting for continuous tubing to run in, drilling and grinding time; By reducing homework time, it is expected to reduce homework costs by 40%;
Suitable for ultra long and large displacement horizontal wells; Eliminate the risk of inadequate pumping in extended reach wells and eliminate damage to casing caused by drilling abrasions;
It can be used for the segmented process of external sealing, as well as for connecting the casing and running it in for segmented fracturing after cementing.
The advantages of double sliding sleeve anti backflow fracturing technology lie in:
Prevent excessive backflow of proppant, which may affect the fracturing effect;
Fracturing with casing can increase construction scale; Implement any multi-level fracturing;
The diameter of the well casing is large, and a large diameter anti erosion inner pipe is used for convenient later operation;
Designed to use continuous oil pipes for multiple on-off and long service life;
After a period of production, the formation can be stable without backflow, and both the fracturing sleeve and the production sleeve can be produced simultaneously; And selectively control water according to the situation of the effluent section;
The design of the fracturing nozzle has a large flow area and does not produce impurity accumulation.
4. Underground tools
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