Shale oil and gas development technology: Not Unattainable

shale gas and tight oil and gas belong to unconventional oil and gas, their core technology is the two series: horizontal wells and fracturing. It is relying on its technology as the main series of perfect matching, the United States broke through the tight sandstone reservoir development and production increased to compensate for its old oilfields production. 2010 America tight gas accounted for 26% of total production of about 159 billion cubic meters. Tight oil accounts for about 10% of the total output of about 34 million tons. The technology used in this set of shale and make it gradually adapted to its peculiarities will be awarded for the great development of shale oil and gas.
Chinese oil and gas has gone through a similar process. Based on its geological particularity, a higher share of dense gas.Unconventional gas After nearly 10 years of technical research, China dense rapid increase oil and gas production, respectively, of total production of about 1/5, 1/4, to become an integral part.
This shows that China dense gas exploration and development technology has reached a very high level, and China in the horizontal well fracturing technology as the main sets of technically matured. Various orientation of cluster horizontal wells, stepped horizontal wells, horizontal wells fishbone-like branches and their corresponding drilling, completion, testing and other processes have become quite popular engineering methods. In fracturing adapt to different geological and reservoir fracturing fluid situation has formed several series, fracturing, carrying sand, (fracturing fluid) flowback and other processes are also supporting the formation, fracturing fluid scale from one hundred thousand square square sand Middleweight developed to Wan Fang liquid thousand square sand magnitude.
Shale gas development in the United States is proud of horizontal well fracturing can simultaneously achieve in practical fracturing, paragraph 20, on the development of China in recent years to 16 segments.fracturing proppant At present, the work has just begun, engineering has for the Chinese domestic oil shale were actually developed for high detrital content, high clay content of the two types of shale fracturing fluid, in order to protect the current shale gas fracturing.
Of course, shale gas and tight oil and gas development there are many different, there are many needs in practice to overcome new challenges. Even if the same categories of oil and gas development in the different basins, reservoirs of different nature (such as shale and clay mineral content types can be quite a big change), or even at different depths, in the implementation of exploration and development operations will encounter different technical issues, needs to be done to explore specific (including failure), adopted different tactics.
Particular attention to oil and gas exploration and development at different stages require different technology and equipment,Proppant they consist of complex technical systems, often only one or two defects in the absence of technical process can affect the entire production chain to complete and cost reduction . Shale oil and gas development from the point of view, the main technology has not meant a preliminary set of technical series with the protection of certain units to master advanced technology and universal application problems. China should gradually complete, improve its ancillary indeed still some practice, the status quo than with the United States, there are many gaps, some of the individual technologies still a big gap, it is necessary to face and attention.