API Standard Double Wall Drill Pipe

Double Wall Drill Pipe

Supply all kinds of drill pipe and bit

As well as various impactors and hammerbit

API standard, with high torsion resistance drill pipe, mainly used in the construction of water wells, deep wells, horizontal wells and large displacement wells in the process of oil and gas exploration and development.
The working principle of gas lift reverse circulation is similar to the working principle of air compressor pumping, that is, compressed air is passed through a double-walled gas faucet or gas box, between the double-wall active drill pipe, the inner pipe and the outer pipe of the double-wall drill pipe The annular gap is sprayed into the inner tube from the mixer to form countless small bubbles. The bubbles rise rapidly along the inner tube while expanding at the same time, thereby generating a gas lift effect. Because compressed air continuously enters the well fluid, a low specific gravity gas-water mixture is formed in the upper part of the mixer, and the liquid in the well has a large specific gravity. According to the principle of the connector, the gas-water mixture in the inner pipe flows upward under the effect of the pressure difference. The bottom core or cuttings are continuously taken out of the surface and discharged into the sedimentation tank. The settled mud flows back into the hole and enters the space of the drill pipe to replenish the circulating fluid through the bottom of the hole, thus continuously circulating to form a continuous drilling process.

TIANJIN COMMAND MACHINERY MANUFACTURING CO.,LTD Thank you for your attention and support!

    Our company specializes in the production of water well drilling rigs (rotary table, power head), which can meet the requirements of technology: 1 positive mud circulation, 2 reverse mud circulation, 3 air DTH hammer, 4 air lift reverse circulation (without complete crushing, improve drilling efficiency), 5 Hydraulic DTH hammer (without air compressor), engineering drilling rig, agricultural machinery and other mechanical equipment. Committed to providing users with the most suitable equipment for practical use, and has strong design capabilities. Individual product customization can be implemented without any additional charges. We insist on comparing with similar products at home and abroad, and always ensure the advanced nature of our products.

    A good product is not necessarily the most technological and advanced, but it must be the most in line with the actual needs. To make this product, we can not rely solely on designers. We know this well, so we have two groups of design teams for the product. A group of after-sales engineers with more than 30 years of domestic and foreign construction experience, and a group of designers with rich working experience graduated from well-known colleges and universities, which are based on professional division of labor (mechanical design and manufacturing and automation, material forming, mechanical and electronic engineering, manufacturing engineering, etc.). We will combine the rich practical construction experience and the most top professional theoretical knowledge to meet your various needs.

    We are not only familiar with the products, but also familiar with the human environment, construction environment and stratum of domestic and foreign construction areas. We can provide you with all-round product selection suggestions and product customization. To provide you with the greatest technical support to help your cause take off.