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First level |
Second level |
Third level |
Fourth level |
Fifth level |
categories |
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Downhole operations |
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Design and evaluation technology |
Acid fracturing test and evaluation |
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services |
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ntegration of acidizing and fracturing technology |
cid fracturing design service |
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services |
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Multilayer and staged fracture and acid technology |
Multistage fracture technology for horizontal wel |
Open hole and multistage fracture technology for horizontal well |
services |
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Casing multistage fracture technology for horizontal well |
services |
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Screen multistage fracture technology for horizontal well |
services |
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Multistage fracture technology for vertical well |
Open hole and multistage fracture technology for vertical well |
services |
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Multistage fracture technology for vertical well casing |
services |
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Multistage fracture technology for vertical well screen |
services |
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Fracture technologies for high pressure and high temperature well |
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services |
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Horizontal well acid, break down technology |
Uniform distribution acid technology for horizontal well |
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services |
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Rotary jet and break down technology for horizontal well |
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services |
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Balling technical service |
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services |
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Perforation technology |
Gaseous propulsion to fracturing technology |
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services |
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Hydraulic jet radius horizontal well |
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services |
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Equipment services |
Fracture equipment construction service |
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services |
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Coiled tubing operation and technology |
Coiled tubing acidizing treatment technology |
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services |
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Coiled tubing multilayer fracturing technology |
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services |
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Coiled tubing sidetracking stimulation technology |
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services |
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Coiled tubing self-adaptive side tracking stimulation technology |
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services |
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Coiled tubing logging |
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services |
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Coiled tubing air lift |
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services |
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Sand washing through coiled tubing |
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services |
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Coiled tubing fishing |
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services |
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Drilling cement plug |
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services |
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Gas tight testing technology |
Gas tight testing technology for tubing |
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services |
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Gas tight testing technology for casing |
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services |
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Well washing technical service |
Injector washing technical service |
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services |
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Technical services |
Injector profiling control |
Profile control agent test and evaluation |
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services |
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Field technical service |
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services |
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Conventional acidizing and breaking down for producer and injector |
Conventional acidizing test and evaluation |
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services |
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Field technical service |
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services |
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Thermal recovery tool service |
Prestressed thermal recovery casing head |
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products |
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Thermal compensator |
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products |
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Prestressed ground anchor |
|
products |
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Well washing technical service |
Producer washing technical service |
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services |
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Downhole chemical materials |
Fracture fluid system |
Clear fracture fluid |
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products |
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Addictive for fracture fluid |
|
products |
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proppant |
quartz sand |
products |
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Proppant with extra low density (ceramsite) |
products |
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Acidizing fluid system |
Acidizing fluid system |
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products |
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Addictive for acidizing fluid |
|
products |
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Well killing fluid |
Loss-control killing fluid |
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products |
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Solid-free killing fluid for acid oil reservoir |
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products |
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profile control and water shutoff system |
Materials for profile control and water shutoff |
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products |
