Popularization of low cost fracturing technology in Tuha Oilfield
China oil network news August 23rd, slickwater + R & D Tuha oilfield super low concentration crosslinked guar gum, low damage fracturing fluid system in Yingping 18-4 wells successfully, not only reduce reservoir damage, improve well productivity, but also make the construction cost discount. The technology is expected to cost 20 million yuan this year.
At present, the volcanic rock, tight oil and ultra deep heavy oil, three unconventional reservoirs in Tuha oilfield have high fracture costs, which directly affect the exploration and development benefits of Turpan hami. In 2013, the Turpan Hami Oilfield Engineering Technology Research Institute, the company and other units and technical personnel according to the reservoir characteristics, closure pressure and flowing pressure test to carry out basic research, and strive to achieve low cost fracturing technology breakthroughs, and strive to make difficult reserves by the "painting cake" into "dishes".
After 4 years of research, the fracturing technology parameters of Tuha oilfield have been optimized gradually, and the fracturing cost has dropped greatly, which has solved the contradiction between the large-scale volume fracturing and the cost. In 2013, the cost of single well fracturing tools was 2 million 480 thousand yuan, now only 952 thousand yuan, and the cost of tools decreased by 61%. In 2013, the cost of single well liquid was 2 million 850 thousand yuan, now down to 1 million 620 thousand yuan, and the cost has dropped by 43%.
Since the beginning of this year, Turpan Hami oilfield has research active water + water + slippery low viscosity and low cost composite gel fracturing fluid fracturing mechanism, complete the high proportion of quartz sand and ceramsite proppant combination of short and long term conductivity experiment, application of more than 230 wells, the average single well save the proppant costs 60 thousand yuan, saving the fracturing fluid the cost of 84 thousand yuan.
In mid August, Niu Dong 99, after repeated fracturing by pitching and pitching, produced 15.94 tons of oil. The success of horizontal well seal driving, sand blasting perforation + annular sand adding fracturing in well Ping 14-16 has greatly reduced the cost and provided new ideas and new methods for volumetric fracturing of horizontal wells.
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