China s rock drill efficiency

With successful breakthroughs and applications of technologies including the 12000m drill rig, wellbore structure optimization, managed-pressure drilling, efficient drill bits, drilling speed-up, ultra-high temperature resistant and high-density drilling fluids, leakage prevention, cementing, ultra-high temperature and pressure resistant oil testing and completion, and ultra-deep coiled tubing equipment, the number of onshore deep and ultra-deep wells in China has been increasing in recent years. [pdf]

FAQS about China s rock drill efficiency

What has been achieved in China's oil & gas industry?

Continuous improvements have been achieved in technical performance indicators such as the drilling cycle, ROP and other metrics. Over 200 wells successfully drilled with MD exceeding 8000m have enabled China to normalize 8000m ultra-deep onshore drilling, with drilling capacity reaching 9000m.

Does rotary non-percussive drilling cause rock failure?

According to the analysis on the SE values at different drilling conditions in rotary non-percussive drilling, the rock failure before the bit is more related to rotary shear than the axial force. Table 2. Calculation of SE based on different drilling parameters in the field test.

Can China normalize 8000m ultra-deep onshore drilling?

Over 200 wells successfully drilled with MD exceeding 8000m have enabled China to normalize 8000m ultra-deep onshore drilling, with drilling capacity reaching 9000m. Moreover, the well depth of TK-1 has successfully exceeded 10000m, making China the second country in the world to successfully drill onshore vertical well with the depth over 10000m.

Does high ROP imply high drilling efficiency in practical engineering?

Note that high ROP does not imply high drilling efficiency in practical engineering because high ROP accelerates the wear of the drilling bit, thereby prolonging the drilling time. Furthermore, the drilling operators possess a few constraints in selecting the correct ROP parameters to optimize the drilling efficiency.

Why do drilling operators need a new index based on rock properties?

However, drilling operators always change drilling parameters to achieve higher drilling efficiency. Hence, a new index that is only related to rock properties and can be successfully applied under different drilling conditions should be developed to define rock properties.

How does cutting a well affect drilling efficiency?

Excessive cuttings will make it difficult to carry drilling fluid, resulting in the deposition of cuttings at the bottom of the wellbore, and the repeated crushing of the rock at the bottom of the wellbore will affect the drilling time and thus reduce the drilling efficiency.

China s first hydraulic rock drill

In 1986, Lianhuashan Drilling Tools Co., Ltd. introduced a full set of HYD200 hydraulic rock drill production technology from France Secoma Company and successfully produced China's first hydraulic rock drill. [pdf]

Terra sonic drill rig price

Manufactured 2008, equipped with Boart Longyear PS 150 sonic head (conversion done in 2020 including: Finger board added with new jib boom, Boart Longyear jaws added, hydraulics upgraded to accomodate new head and jaws, feed cables replaced, new dum cylinder) Mounted on 2008 Sterling L9500 6x4 truck with Mercedes 12.8L engine, PTO, RTO 8LL transmission, Bean pump, Moyno pump, cold weather package, , coring attachment, elevated driller’s platform Price: $425,000 [pdf]

FAQS about Terra sonic drill rig price

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The TSi 150CC Sonic Dill Rig is the most powerful sonic rig on a small platform in the world. It brings full Terra Sonic power and innovation to a compact footprint for remarkable flexibility and versatility. The track-mounted 150CC easily reaches limited-access areas and tough terrain.

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It brings full Terra Sonic power and innovation to a compact footprint for remarkable flexibility and versatility. The track-mounted 150CC easily reaches limited-access areas and tough terrain. Remote control tracking makes the 150CC ideal for use in tighter spaces.

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Website Privacy Policy Sonic Rigs. The only sonic drill rig manufacturer in the world committed exclusively to sonic drilling technology—Sonic Rigs, Sonic Heads and Terra Sonic Tooling.

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