The Application Field and the Drilling Technology of the Roller Cone Bit
The single roller cone bits rock by crushing and shearing. The cone is rolling at the bottom of the well, so the requirement for the torque is small, which can greatly reduce the mechanical load.
When the drill bit is working, the roller cone not only rotates around the axis of the drill string but also rotates around its own axis.
According to the number of roller cones, roller cone bits can be divided into single roller cones, double roller cones, three roller cones, four roller cones and multiple roller cones. According to the method of breaking rock, it can be divided into full-scale drilling cone bit and coring cone bit. According to the nature of the work, it can be divided into forward pilot hole drilling positive circulation roller cone bit, a pilot hole drilling reverse circulation roller cone bit, center continuous sampling cone roller bit, positive circulation reaming roller cone bit, and reverse circulation reaming roller cone bit. According to the teeth and structure of roller cones, it can be divided into steel teeth and embedded roller cone bits. When using it, it is necessary to choose the adaptation range of its tooth shape according to the local conditions.
The roller cone bit is used for drilling and has a wide range of applications, and it can be applied from soft formations to hard bedrock formations.
Used in the water well, and the geothermal well
In contracted water well drilling projects, the adoption of roller cone drilling accounts for more than 80%, especially in the deepwater wells and the geothermal well construction. A small number of traditional fishtail drill holes, three-blade drill bit reaming, and hard alloy steel core drilling, which is not only laborious but also lavish, causing great waste to the construction and increasing the burden. Now, there is no choice but to seek for the innovation and upgrade of the roller cone drilling.
Used in the gas mining
Safety accidents occur frequently in coal production. CBM wells are generally drilled with roller cone bits in the first opening, and pneumatically by DTH hammers in the second opening. Due to the large diameter of the gas discharge well and there are certain requirements about the verticality of the hole. Therefore, the three roller bits are generally used to drill the front pilot holes, and then the roller cone drills are expanded to form the well.
Used in the trenchless project
In the construction of trenchless crossing project, in addition to using winged carbide back-expanding drill bits in loose formations, some bedrock formations also need to use roller cone welding back-expanding drill bits to complete the task. It mainly uses roller cone reamer and PDC reamer.
Used in the foundation construction with large diameter pile
In the construction of building and bridge foundation engineering, rock-socket piles with large diameter and high bearing capacity are often required. The previous method is to use cemented carbide and steel grain drilling, but now, the traditional drilling process has been replaced by the roller cone drilling process, which is of simple operation and strong adaptability. It can realize non-circulation drilling, mud forward circulation drilling, reverse circulation drilling and bottom expansion pile drilling. The main tool is a barrel drill. If it are co-used with a replaceable tooth palm piece, the rock will be broken evenly, with high efficiency, low cost, and the quality of the drilled hole will be better.
As one of oil well drill bit manufacturers, we will provide more types of high qualty products for sale, if you are interested, please leave us a message.
在线联系供应商
Other supplier products
Bi-center bit for Mining Machinery and abrasive formation | Overview of Bi-center Bit This type of bi centermainly used for medium to medium-hard compressive and abrasive formation, it has medium and high... | |
PDC cutters used for PDC bit, PDC hole opener, PDC reamer | Overview of PDC Cutter PDC cutters are made of diamond micro-powder and cemented carbide substrate sintered under ultra-high pressure and high tem... | |
Fixed cutter PDC Hole Opener reamer with hard facing for HDD drilling | Overview of PDC Hole Opener PDC Hole opener is designed for the enlargement of pilot holes and large hole applications. They are also used for roa... | |
Professional manufacturer to Rock Reamers | Overview of Rock Reamer Hole Opener The Rock reamer produced by GREAT company is used to expand the diameter of the pilot hole and is mainly used ... | |
Well Drilling Equipment Crocodile PDC Reamer for Horizontal Drilling | Overview PDC Reamer The PDC Reamer manufactured by GREAT drill bit will be your best choice to deal with the complicated situation. Our PDC reamer... |
Same products
Fully automatic transparent film wrapping machine | 卖方: Zhejiang Junwen Machinery Equipment Co., Ltd. | This machine can add the two-side ironing mechanism, the steering mechanism, and the four-sid... | |
sewing spares | 卖方: Zhejiang Huaqi Information Technology Co., LTD | Manufacturers also need to consider the quality of sewing spares when making their purchasing dec... | |
MaAnt BF-1 吹吸涡轮风扇除尘枪 | 卖方: 深圳市维客修科技有限公司 | MaAnt BF-1吹吸式涡轮风扇清洁枪是一款高效的无绳手持清洁工具,专为清洁电子设备和日常用品而设计。 其最高转速可达100,000 RPM,强大的吹吸功能使清洁变得轻松便捷。 它具有便捷的设... | |
industrial sewing machine spares | 卖方: Zhejiang Huaqi Information Technology Co., LTD | Our spares are crafted from the highest quality materials to withstand the rigors of industrial u... | |
industrial sewing machine spares | 卖方: Zhejiang Huaqi Information Technology Co., LTD | At JINZEN, we take immense pride in our diverse and comprehensive product range, catering to ever... |