Company News

2020

07-24

Measures for Improving Drilling Speed of Drilling Rig

From the point of view of rotary drilling, in order to improve the drilling speed, we should mainly increase the rock breaking energy of the drill bit at the bottom of the rock, and improve the two factors of weight on bit and speed. Because the technical improvement of bit pressure and speed will be limited by many factors, the technical ability at this stage is mainly to improve the speed. There are two main ways to increase the rotation speed: on the one hand, increasing the rotation speed of the rotary table or using the top drive device, and on the other hand, using the compound drilling technology of downhole power drilling tools and low-speed rotating drill string. However, the first method is limited by the strength of the drilling tool and the energy of the drilling rig, and the speed increase is limited. The composite drilling technology of PDC downhole power drilling tool can give full play to the characteristics of PDC bit suitable for high speed shearing formation, greatly improve the PDC bit speed and mechanical rock breaking energy, so as to improve the mechanical drilling speed.

2020

07-21

Common problems and treatment methods of drilling rig

It is determined to include small formation inclination force and formation inclination force, scoop angle, weight on bit, formation inclination angle, drilling machine bit anisotropy index, formation anisotropy index, well bore orientation and fire angle of formation inclination orientation. The formation coclinotectic force may be a build-up force or a down-slope force, and the formation azimuthal change force may be an increasing azimuthal force or a decreasing azimuthal force. In general, the formation deviation force makes the drill bit trajectory close to the formation normal direction, and the formation change azimuth force makes the borehole azimuth close to the formation inclination azimuth. When the borehole azimuth of the drilling machine is consistent with the formation inclination azimuth, the formation variable azimuth force is zero.

2020

07-16

Factors Affecting the Speed of Drilling Machinery in Drilling Engineering

In deeper formations, the drillability is poor due to the greater hardness of the rock layer. With the increase of depth, the drillability level is higher, and the drillability also changes according to the different geological structure of each layer. In deeper well sections, due to high temperature and pressure, the level of drillability will increase. In the strata containing mudstone and argillaceous sandstone, due to the change of elasticity, plasticity and brittleness, the difficulty of crushing is increased. In the sand-mudstone interbedding and containing gravel layer, the phenomenon of drilling will also occur, which will reduce the service life of drilling tools and affect the speed of drilling machinery.

2020

07-15

Introduction of internal knowledge of drilling machine

The concepts of drilling machine bit oblique cut index and anisotropy index and comprehensive cutting preparation anisotropy index are derived from the general Roundup formula and simplified form of formation white inclination force suitable for the actual drill bit, volume crushing and surface crushing conditions of drilling machine. Using the drilling machine bit cone method to derive the calculation formula of formation change and inclination force and formation change azimuth force in directional drilling, it provides the basis for the analysis of formation force and personnel for the directional and orbital control of the drilling machine. It is verified that the theoretical analysis results are in good agreement with the actual drilling.

2020

07-14

Method for maintenance of drilling machine by drilling personnel

The drilling machine should have a comprehensive maintenance work every month. The specific method is to thoroughly carry out daily maintenance of all inspection items; take out the ink cartridge, clean the slips and slips, and replace them in time if there is any damage; clean the filter and replace the hydraulic oil to prevent deterioration; check the complete main components. If the long-term wear is serious, replace new parts in time; summarize the problems found in the drilling machinery and equipment this month, contact factory technicians in time to make corresponding maintenance plan. If the drilling equipment has not been used for a period of time, the appearance of the machine cover and pipe fittings should be coated with butter or rust inhibitor.

2020

07-13

Water well drilling rig run-in period is very important

Due to the influence of the processing, assembly and adjustment of the new machine parts, the friction surface is rough, the contact area of the mating surface is small, and the pressure condition of the surface is uneven. During the operation of the machine, the concave and convex parts of the surface of the parts are interfitted and rubbed with each other, and the metal debris that falls down is used as abrasive to continue to participate in friction, which accelerates the wear of the mating surface of the parts. Therefore, the content of the running-in period is easy to cause the wear of parts (especially the mating surface), and the wear speed is fast. At this time, if the overload operation, it may lead to damage to the parts, resulting in early failure.

2020

07-11

Analysis on the Advantages and Drilling Methods of Vehicle-mounted Drilling Rig

With the continuous development of science and technology, machinery and equipment are moving in the direction of automation, truck drilling rig is also one of them. In the drilling rig industry, the degree of automation and remote control technology of truck-mounted drilling rigs is getting faster and faster, which is also the general trend of development in the future. The advantage of the automatic production of the truck-mounted drilling rig is that it improves the production efficiency of the truck-mounted drilling rig, effectively reduces the production cost, and virtually improves the production quality. Let's learn about the advantages of the truck-mounted drilling rig and the drilling method together with Xiaobian. Advantages of 1. truck-mounted drilling rig 1. The self-priming capacity of the mud pump of the truck-mounted drilling rig is relatively strong, and the flow rate of 10 levels can be adjusted to meet the production; 2. The drill pipe of the truck-mounted drilling rig has good performance and large self-weight. When drilling, it can complete high-efficiency production by relying on self-weight pressure; 3. The truck-mounted drilling rig has strong hydraulic pressure, which can reduce the labor intensity of the operators and save the operators at the same time; 4. The whole vehicle of the truck-mounted drilling rig is equipped with four sets of hydraulic legs, which can adjust the extension length of different legs at will to adapt to different workplaces, and the positive and negative circulation work of the well drilling rig can be realized on the operating platform, so that the operation is convenient and flexible. Method of 2. truck-mounted drilling rig 1. Reverse drilling method: in the production of this method, the vehicle-mounted drilling rig uses a circular drill bit with hard alloy welded at the bottom for drilling. when drilling, the vehicle-mounted drilling rig must exert a certain production pressure, so as to ensure that the drill bit cuts into the rock and soil layer during drilling and to achieve the most stable drilling intention; 2. Scour drilling method: in the production of this method, the vehicle-mounted drilling rig needs to use high-pressure water flow to impact the soil layer at the bottom of the hole, thus damaging the production structure of the soil layer, and the soil particles are suspended and eventually flow out of the hole with the water flow circulation; 3. Impact drilling method: the impact force that occurs during the gravity and fall of the drilling tool used by the truck-mounted drilling rig causes the drill bit of the truck-mounted drilling rig to impact the rock and soil at the bottom of the hole and damage it, thus reaching the method of drilling and drilling; 4. Oscillating drilling method: The vehicle-mounted drilling rig selects the oscillating force generated by mechanical power, and then transmits the power to the drill bit through the effect of the drilling tool and the connecting rod, so that the effect of the oscillating force can make the drill bit very good for crushing soil rocks, etc., thus improving the drilling speed of the vehicle-mounted drilling rig. The above is to share with you about the relevant content of the truck-mounted drilling rig, I hope that through the above content, we can have a further understanding and understanding of the truck-mounted drilling rig.

2020

07-08

Do you really know the rig?

Drilling rig is a mechanical equipment that drives drilling tools to drill underground and obtain physical geological data in geological exploration, so it is also called drilling machine. The main function is to drive the drilling tool to break the rock at the bottom of the hole, and to lower or raise the drilling tool in the hole. It can also be used to drill cores, ore cores, rock cuttings, gaseous samples, liquid samples, etc. to find out the underground geology and mineral resources. Mainly used in the need to punch the project.

2020

07-07

Maintenance methods of drilling rig and drilling rig

For well drilling personnel, the well drilling machine plays an important role in the drilling process, so the care and maintenance of the well drilling machine must be in place. Maintenance and maintenance should be carried out every once in a while, which can prolong the service life of drilling equipment, ensure the safety of workers, and will not cause sticking and other phenomena due to sudden shutdown during use.

2020

07-06

Introduction of basic knowledge of drilling machine

Drilling vehicle, also known as mobile drilling platform, is composed of automobile chassis, drilling equipment, transfer device, hydraulic system, tower and other parts. It is mainly used for the construction of seismic blasting holes. Drilling vehicle, also known as mobile drilling platform, is composed of automobile chassis, drilling equipment, transfer device, hydraulic system, tower and other parts. It is mainly used for the construction of seismic blasting holes; the construction of shallow holes for the general survey and exploration of oil, natural gas and solid minerals; the engineering geological survey and construction of urban construction, railway and hydropower departments; the shallow hydrogeological survey and water well drilling.