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
 |
Roller Bit | As one of the rock drill bits manufacturersin China, Cangzhou Great Drill Bits Co.,Ltd.has customized several types of roller cone bits for salethr... |
 |
PDC Cutter | PDC cuttersused for PDC bit, PDC hole opener, PDC reamer Overview of PDC cutter PDC drill bit cuttersare made of diamond micro-powder and cemen... |
 |
Core barrel with high performance rock roller bit for Pile Foundation | Overview of Core Barrel Roller Bit Cangzhou Great Drill Bits Co.,Ltd.is one of the drill bit manufacturers in China. Its roller bit core barreluses... |
 |
PDC Drill Bit | PDC drill bit is short for Polycrystalline Diamond Compact bit. The other name for the PDC drill bit is Diamond bit. As one of the most professiona... |
|
|
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 smal... |
Same products
 |
使用 MaAnt M061 镀金焊针进行高效焊接 | 卖方: 深圳市维客修科技有限公司 | MaAnt M061 镀金轻型碳纤维手柄拖锡针套装，可在电子/手机主板 FPC 连接器上均匀快速填锡。MaAnt M061 BGA 回弹焊锡棒镀金拖锡针采用圆球头设计，无棱角、无划痕，不会损坏 ... |
 |
High Hardness Linear Rail Flat Bed CNC Lathe | 卖方: Zhejiang Guoyu CNC Machine Tool Co., Ltd. | It can cut all kinds of turning surfaces by bicycle, such as conical surfaces, special surfaces, ... |
 |
Automation Suction Cups | 卖方: 浙江石井工具有限公司 | The ALUMINUM SUCTION CUP 6106 D is a versatile and reliable tool designed to handle various lif... |
 |
Machinery | 卖方: O&K GROUP LIMITED | Okwishing supplies all kinds of Machinery. Okwishing () is a cross-border e-commerce platform de... |
 |
Mini Excavator Carrier Roller for Kobelco SK045/SK045SR/SK50SR/SK70SR | 卖方: 厦门球实贸易有限公司 | The carrier roller use 50Mn steel, after free forging into work-piece by a 560KG air hammer, comp... |
