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Directional drilling technology

With the development of exploration and development, directional drilling technology has been developed rapidly. In order to reduce the operation cost and realize the economic and efficient development of oil and gas resources, the horizontal section of horizontal well extends longer, the drilling speed becomes faster and the wellbore becomes more smooth. In order to improve the quality and efficiency of directional drilling, researchers at home and abroad are improving tool design, improving tool performance and reliability, optimizing drilling operation mode, etc., and have made many progress in downhole data acquisition and transmission, well trajectory control technology, directional drilling supporting technology and drilling operation management. In order to improve the efficiency of directional drilling and reduce the cost, a series of new directional drilling technologies have emerged, which make the mode of directional well, horizontal well, extended reach horizontal well, multi branch well and drilling multiple horizontal wells in a well pad for factory development widely used. At present, the common directional well has become a conventional technology, and the application proportion of horizontal well is increasing year by year. With the exploration and development turning to deep water, more complex formations and unconventional oil and gas reservoirs, there is an increasingly urgent demand for innovative schemes in the field, which requires greater vertical depth, longer horizontal section and more branches, so as to promote the directional drilling technology to develop in a new direction.

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Integrated Services

In the construction of Well Wei 202H19-8, which was drilled by Zhongyuan Drilling Company ，our company contracted the integrated technical service of the drill bit and screw of the 12-1 / 4 "well section. The recent completion of the well section averaged average mechanical drilling. The speed reaches 10.07m / hr, which is 25% higher than the machine speed target. The drilling cycle of this well section is 13.5 days, which is 3.5 days less than the average drilling cycle of the same well section in the same block. The quality and performance of snails are highly evaluated.

Unique Design and Services:

1.Equipe with multiple technical experts

They are familiar with the geological structure, trend, lithology and fluid properties of the main oilfields

2.Offer customized services

Maximize product performance

Guarantee not to scrap at the same time

3.Unique Business Model

Provide drilling services to customers

Drill bits are charged by the footage depth.

Downhole motors are charged by the using time

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Two-Stage and Two-Speed Drilling Tools

Two-Stage and Two-Speed Drilling Tools can fully utilize the technical advantages of PDC bit efficient rock breaking and further improve its mechanical drilling rate in low permeability formations.From the principle of bit breaking rock, the two-stage two-speed drilling tool is no different from the conventional PDC bit. The main difference between the two is that the specific method of rock breaking is different. The two-stage two-speed drilling tool has two drill bits with differentdiameters. A diameter drill bit drills the eye, releases the internal stress in the rock, and then uses the smaller diameter drill bit to follow the broken rock. Because the first bit bit broke through the rockIn the middle of the process, the stress field of the bottom rock has changed, and the rock resists breaking.The crushing strength is reduced, so the rock breaking efficiency of the secondary drill bit is improved.Thereby improving the overall drilling efficiency.

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Integrated Service

CHALLENGES

In order to improve the ROP and reduce the cost of downhole tools for clients.

SOLUTION

DeepFast offer its integrated service (drill bit and downhole motor). The combination of drilling tools both manufacture by DeepFast and it can be rented by end user.

RESULTS

· It helps save the cost of 50%

· It helps reduce 4 days

· It helps ROP of 33%

Overview

In 2018, the formation is medium- hard but abrasive in the Sichuan of China, DeepFast offer integrated service (downhole tools rental) for end user.  In the block of Sichuan, there are two similar well JY-66-1 HF and JY-66-2 HF. DeepFast provides the drilling tools combination of drill bits and downhole motor.

Results Compare

By offering the improved drill bits and downhole motors, DeepFast develop the drilling tools combination with its own technology. The high-quality PDC bit and enhanced long lifetime of downhole motor are successfully to compete with other company’s drill bit and downhole motor. Most importantly, DeepFast offer its own design drill bit and downhole motor which are well connected and used well, which are efficient than other’s company that only offer drill bit or downhole motor. Due to this combination of these tools, DeepFast help clients save 4 days and 50% money cost. Furthermore, it improves the 33% ROP.

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The Impregnated Bit

The Impregnated Bit (8 ½” DI281) is a new designed bit specially developed for adapting high rotary speed and hard formation. With unique inner cone structure and strengthened matrix body, it has improved the strength and stability of drilling in abrasive lithology. With a cumulative footage of 249 meters, which is from 4531 to 4780 meters, the total time is about 82 hours, and ROP is 3 meter/hour. Comparing with normal PDC Bit and Tricone Bit’s ROP 0.8~1m/h, its increased more than 2 times. Comparing with normal PDC and Tricone Bit’s footage 40~60 meters, it saves about 4 bits cost. What is more, the used bit keeps 70% as the original new bit, which can be repair and use again.

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One Matrix Body PDC Bit Drilled Successfully in Xujiahe Layer in Sichuan China.

CHALLENGES

In order to reduce the quantity of PDC Bit drilling in Xujiahe Layer in the Sichuan of China,

Chinese bit manufactures try to design enhanced PDC bit to drill by ONE BIT.

SOLUTION

DeepFast offer its own designed Matrix Body PDC Bit 12 ¼” DF1605BU to obtain higher ROP.

RESULTS

· It sets new ROP record of 5.1 m/h.

· The bit Drilled Successfully in the Layer by only One Bit

 Overview

In the Sichuan of China, the formation is medium- hard but abrasive, Great Wall Drilling Company of CNPC try to increase drilling footage and reduce the quantity of PDC bits in Xujiahe Layer. In this layer, the depth is from 1300 to 1900 and the compress strength is 12000PSI ~16000PSI.

Chuanqing West Drilling Company would like to improve drilling speed and it specially carry out PDC tests in Si005-X5 and Si005-X6 wells starting drilling from about 500 meters for 12 ¼ hole. DeeFast designs the Steel Body PDC Bit 12 ¼” DFS1905U for this project.

  Technology Advantage

The Steel Body PDC Bit 12 ¼” DFS1905U is an improved bit specially developed for stability and high performance. With the advanced PDC cutter and unique blade design, it has improved the stability while drilling. This bit has preventing bit sticking technology, Gauge enhancement technology and adopts high-performance PDC Cutters. It has the characteristics of high rotary speed, stable operation and long service life while drilling.

 Performance

It sets new ROP record of 22.18 m/h, and the average of ROP of five bits is 17.27m/h.

It has better ROP than Smith Bit and Halliburton in this area.

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The Matrix Body PDC Bit 12 ¼” DF1605BU

Matrix Body PDC Drill Bit is suitable for medium hard and hard formations with optimized crown profile and cutters layout. It can achieve better performance in deep intervals. Long service life and high performance help reduce the drilling cost.

Technology Advantage

The Matrix Body PDC Bit 12 ¼” DF1605BU is an improved bit specially developed for increasing the strength and lifetime of drill bits. The formula of matrix powder with independent intellectual property rights and advanced sintering technology have made the mechanical properties of matrix reach the international advanced level. Super strong material promotes gauge wear resistance to enhance long lifetime. It has the characteristics of high rotary speed, stability and long service life while drilling.

It achieves best ROP of 10.61 m/h, and the average of ROP of five bits is 7.13 m/h.

All of bits drilled successfully in the layer by only One Bit

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DeepFast is one of the best suppliers of oil drilling products and services in China.DeepFast Oil Drilling Tools Co. Ltd. specializes in the diamond drill bits of various types and sizes ranging from 3 inch to 26 inch and other drilling tools. With Japan 5-axis NCPC and Germany Modern lathe, DeepFast produces annually 8000 diamond bits and 2000 downhole motor. Though long-term cooperating with Southwest Petroleum University, our company researches and develops rock breaking in hard formation by bit test bench. Till now, it gets 47 patents that includes 2 American patents, 2 Russian patents, 43 Chinese patents. Our company focuses on quality by advanced technology and high-efficiency management. Our products pass the ISO 9001-2015 (ISO 9001:2015), ISO 14001-2015, OHSAS 18001:2007, API Spec 7-1.). We provide oil drilling tools and related services to customers in North America, South America, Russia, Ukraine, Central Asia, and Southeast Asia. Our mission, “Solution to speed up oil drilling”.