Galloping In The Front Of Geo Steering Technology

In 2012, the first victory bef MRC geo steering system, which was independently developed by Shengli drilling Institute, was born in the world. In more than two years, it has accumulated more than 50 wells, and the average drilling rate of single well has increased by more than 20%. The average well construction period has been shortened by 4 days, and the success rate of logging is as high as 100%. The birth of MRC has shaken the monopoly position of foreign oil companies in technology and market.

Shengbo abundant MRC currently has 3 national invention patents and 10 utility models patents, and won the first prize of science and technology progress of Sinopec engineering company in 2014. Behind the glory is the drilling and tracking of the drilling and drilling control team for several years, which has brought a welcome step today.

Logging while drilling

A lofty ambition can never be driven by difficulties. With the increasing difficulty of petroleum exploration and development and the high dependence on logging technology, the traditional cable logging has been unable to meet the measurement requirements of special wells, such as highly deviated wells, horizontal wells and multilateral wells. The best way to obtain geological parameters of complex structural wells is to use MWD. But during the same period, international oil suit giants such as Schlumberger, Beck, Hughes and Halliburton almost monopolized the whole market with advanced LWD wireless LWD. In order to keep the oil field stable and high-yield, we had to pay a high price for the purchase of foreign instruments or related services.

In order to reverse the passive situation, the drilling Institute relies on the "fifteen" science and technology tackling key project "complex oil and gas reservoir matching drilling technology and key equipment research". After three years of deep research and independent innovation, we have successfully developed geo steering equipment with natural geological parameters while drilling induction resistivity and dual geological parameters, and become the first milestone in the history of geological guidance in China. As the leader of Sinopec's ten dragon science and technology tackling project in that year, the drilling yard not only won numerous flowers and applause, but also attracted contracts and orders coming from various oilfields in China.

The drilling crew has not been complacent because of a short victory. The R & D team, whose core is Yang Jinzhou, the chief expert of the drilling well, is soberly aware that there is still a big gap between our country and LWD, including the shallow depth of detection, the low accuracy of the curve, and the variety of parameters. In Yang Jinzhou's opinion, without the spirit of the foolish old man moving the mountain, the core technology of measuring while drilling is not capable of forming independent intellectual property rights, so that the oil industry of the country will always be controlled by others.

It is precisely because of the suffering of the petroleum industry that the drilling company successfully applied for the National 863 project "Research on Key Technologies of LWD core detectors" during the "11th Five-Year" period. It carried out the research and development of the second generation geo steering system, including three kinds of logging tools such as electromagnetic resistivity while drilling while neutrons while drilling density, and achieved fruitful results successively, including MRC electromagnetic logging while drilling electromagnetic logging tool.

Gu Jian Gu Gu 8 well

Different from the first generation induction resistivity logging tool, the MRC electromagnetic wave resistivity logging tool can acquire 8 formation resistivity curves while drilling, and is more abundant and accurate than the original 1 curves, and the measuring range is wider and deeper. It is beneficial for the system to discover the oil layer accurately and improve the drilling rate of the oil well in advance. The resistivity of the four resistivity logging tools can be obtained more accurately.

in order to test The application effect of the electromagnetic wave resistivity logging tool ensures that the domestic resistivity logging tool can join the ranks of the international advanced geological guidance system at one fell swoop. The drilling and measuring control team of the drilling well is well prepared, and after fully having the applied conditions, the field test is carried out in Gu Gu 8 well in March 6, 2012. Gu Gu 8 well is a pre exploratory well drilled in Shengli Oilfield in 1985, and its drilling depth is 2800.8 meters. It is a standard contrast well for testing various downhole instruments. Prior to this, Schlumberger, Beck Hughes, Halliburton and so on have carried out resistivity logging in the well. On the same day, the drilling technicians gathered in Gu Gu 8 well, teaching their children to walk as they did, loosening their hands, watching the drill collar with MRC instruments slowly falling down into the well, and everyone on the scene held their breath. After a short wait, the instrument reached the designated depth successfully. Through the real-time measurement of the 2100 meter to 2300 meter repeat well and the target well segment, the phase difference and amplitude ratio curves of the electromagnetic wave while drilling were successfully obtained. Compared with the test results of the famous foreign oil companies, the main technical indexes such as the measurement accuracy, dynamic range and thin layer resolution of the instrument reached the international advanced level. Learning the news, the whole R & D team was filled with jubilation.

After the excitement, the drilling and measuring technology personnel in the drilling field showed the usual modesty and calmness. In order to improve the reliability of products and improve the reliability of the products, the instrument antenna structure, measurement control method and packaging manufacturing process were optimized in depth. Based on the technology of asymmetric antenna compensation, ultrasonic caliper compensation, multi stage nonlinear temperature correction and precision assembly process, the system measurement error and borehole effect were eliminated effectively, and the accuracy and stability of the instrument were improved significantly. The well deflection and azimuth gamma parameters were added to the electromagnetic drill collar, and the near bit integrated measurement of bit inclination, azimuth gamma and multi depth resistivity was realized, forming a mature victory Beifen MRC geological steering system. In July of the same year, the improved instrument was successfully applied in well 411- Ping 23 well. Since then, it has been widely applied. stage 。

The Shengbo Feng MRC geological steering system is specially developed for the development of complex fault block reservoirs, subtle reservoirs and thin reservoirs. It has completely independent intellectual property rights. Compared with the similar products in the world, it has similar performance and low cost, and has great competitiveness in the industry.

In November 2012, during the construction of Sheng 3- Ping 129 well, the MRC system measured the well section 460 meters, traversed the reservoir 95 meters. According to the measured data, directly casing and cementing, completed the task with high quality and high efficiency, completely replaced the cable logging, and was highly praised by the other side: "with your baby, our work problems are much smaller, and we are more confident in getting well."

In the first half of 2013, after successfully improving the accuracy of borehole deviation and gamma measurement, the well drilling company successfully entered the Sichuan Guang Jin 6-2hf well and the Heping 5 well in Jilin oilfield and the well Ping 6 well. In the process of geo steering construction in Heping 5 well, three imported drilling instruments failed. After replacing our equipment, only one drill completed the logging task, which was well received by Party A. The excellent quality of MRC made the geological steering system of drilling well formally go out of Shengli Oilfield and enter the domestic market.

In December 2013, the 4 inch small size MRC instrument first appeared in camp 17- slant 82 well, while drilling for 86 hours, and successfully crossed several oil layers. Compared with the well logging and logging data, the instrument's measurement accuracy, dynamic range, resolution, drill collar structure and sealing performance reached the international advanced level.

In May 2014, Shengbo Feng MRC demonstrated itself well in the Yong 42- Ping 1 well in Jiangsu oilfield. In the face of the complicated geological structure and the difficulty of drilling, the instrument worked stably and accurately, creating two records of the lowest drilling cycle in the deepest horizontal well and the 3500 m to 4000 m horizontal well in the Jiangsu oilfield. The drilling yard also got the technical service contract of the next well ahead of time.

Gold medal quality

Market competition is a never-ending game. Due to the excellent performance of the victory bef MRC geo steering system, it is understood that some foreign companies have begun to reduce logging while drilling fees and are ready to release some sales restrictions on high-end products. In order to enhance the ability to compete with the world's first-class oil companies, and defend the domestic geological steering brand, the drilling company has always supported the development of new technology and new products.

Since the birth of MRC, scientific research workers in drilling institutes have been improving their equipment structure, improving their measuring ability and prolonging their service life. In a few short years, the victory BF MRC geo steering system is no longer what it used to be. At present, the instrument has developed three sizes of 8 inches, 6 inches, 4 inches and so on to meet the needs of different types of boreholes. It has formed an annual production capacity of 30 sets of MRC geological guidance system, and has reached a strategic cooperation agreement with many domestic units and the intention of product supply, which has opened up a new profit growth point.

Nowadays, victory MRC has owned and published three industry standards, and has become a leader in the field of geo steering in China, and has embarked on the high-end road of the domestic geological steering system.