中国石油网消息:8月4日获悉，新疆油田勘探开发研究院自主研发的“一种道运算方位振幅椭圆拟合裂缝检测方法”正式获得国家发明专利授权。该技术如同为地下油气通道装上了一双精准的“天眼”，将叠前裂缝预测运算速度提升60倍。

China Oil News: On August 4th, it was learned that the "A Method for Elliptical Fitting of Fracture Detection Based on Directional Operation and Amplitude" independently developed by the Exploration and Development Research Institute of Xinjiang Oilfield has officially obtained a national invention patent authorization. This technology is like equipping underground oil and gas channels with a pair of precise "telescopes", increasing the speed of pre-stack fracture prediction by 60 times.

裂缝是油气在地层深处储存和运移的“高速公路”。对于页岩油、超深层致密气等非常规储层，裂缝更是决定产能的关键。然而，长期以来，常规叠后地震预测方法对大尺度断裂“看得见”，对小尺度、呈组群发育的裂缝却几乎“视而不见”，而理论上可行的叠前方位各向异性裂缝预测技术，又因计算量庞大，在实际生产中“算不动、算不起”，工业化应用受到制约。

Fractures serve as the "highways" for the storage and migration of oil and gas deep within the earth's strata. For unconventional reservoirs such as shale oil and ultra-deep tight gas, fractures are the key factor determining production capacity. However, for a long time, conventional post-stack seismic prediction methods can "see" large-scale fractures, but almost "ignore" small-scale and group-developing fractures. Moreover, the theoretically feasible pre-stack azimuthal anisotropic fracture prediction technology, due to its huge computational requirements, is "uncomputable and unaffordable" in actual production, thus restricting its industrial application.

为突破这一瓶颈，新疆油田科研团队直面现有叠前裂缝预测技术精度低、效率低的通病，深耕水平横向各向异性介质理论（HTI介质）和地球物理预测方法，通过严密的公式推导与精心的算法设计，研发了该项高精度高效叠前裂缝预测专利技术。

To break through this bottleneck, the scientific research team of Xinjiang Oilfield directly confronted the common problems of low accuracy and low efficiency of the existing pre-stack fracture prediction technology. They delved deeply into the theory of horizontal and vertical anisotropic media (HTI media) and geophysical prediction methods. Through rigorous formula derivation and meticulous algorithm design, they developed this high-precision and efficient pre-stack fracture prediction patent technology.

技术主体包含两部分创新：一是重新推导建立出利用6个分方位地震数据拟合裂缝各向异性的叠前裂缝预测公式；二是在此基础上，创造性地建立按道运算的求解方程，引入奇异值分解算法，将原本在庞大数据体上的复杂迭代，简化为逐道高效求解。

The technical core consists of two innovations: Firstly, a new derivation is conducted to establish a pre-stack fracture prediction formula that utilizes six component-directional seismic data to fit the anisotropy of fractures; Secondly, based on this, a novel solution equation is creatively established for the operation by channels, and the singular value decomposition algorithm is introduced to simplify the complex iterative process originally carried out on a large amount of data into an efficient and sequential solution per channel.

该项创新源自对地震数据结构和裂缝预测方法的深刻认识。现有技术逐点运算求解的方式犹如“千军万马过独木桥”，计算效率低；该创新技术“逐道运算+奇异值分解”的方法好比把独木桥换成了6车道高速公路，再配上涡轮增压，运算速度一举达到现有技术的60倍，计算成本大幅下降。

This innovation stems from a profound understanding of the structure of seismic data and the methods for predicting fractures. The current technology, which solves problems point by point, is like "a thousand troops crossing a single bridge", with extremely low computational efficiency. This innovative technology, which uses the method of "sequential calculation + singular value decomposition", is like replacing the single bridge with a six-lane expressway, coupled with turbocharging, achieving a computing speed that is 60 times that of the current technology, and significantly reducing the computational cost.

在新疆油田，这项技术正成为页岩油效益开发和超深层天然气快上产的“利刃”。吉木萨尔国家级陆相页岩油示范区油层薄、非均质性强，钻井轨迹如同在迷宫中穿行。裂缝走向与区域最大主应力方向的夹角，直接决定压裂能否形成有效缝网、单井能否高产。

In Xinjiang Oilfield, this technology is becoming a "sharp tool" for the efficient development of shale oil and the rapid increase in production of ultra-deep natural gas. The oil layer in the Jimsaosaer National Key Continental Shale Oil Demonstration Area is thin and highly heterogeneous, and the drilling trajectory is like traveling through a maze. The angle between the fracture direction and the maximum principal stress direction in the region directly determines whether fracturing can form an effective fracture network and whether a single well can achieve high production.

该技术应用于吉木萨尔页岩油J10041井区，成果令人振奋。基于新方法预测的裂缝发育高密度区，与后续实钻显示的油气活跃段吻合率超过85%。目前，该技术已支撑12口水平井的轨迹优化，其中3口井完钻后测试获日产超百吨高产油流，单井估算最终可采储量（EUR）比原计划提高超12%。

This technology was applied to the J10041 well area in Jimsar shale oil. The results were extremely encouraging. The high-density areas of fracture development predicted by the new method matched the actual drilling results of oil and gas activity sections with a coincidence rate of over 85%. Currently, this technology has supported the trajectory optimization of 12 horizontal wells. Among them, 3 wells were completed and tested, achieving daily production of over 100 tons of high-yield oil flow. The estimated ultimate recoverable reserves (EUR) per well have increased by more than 12% compared to the original plan.

准噶尔盆地南缘天山北麓是超深层天然气领域主阵地，气藏埋深普遍突破7000米，地层压力系数逾2.0，超深、超高温、超高压的“三超”极限工况，让裂缝精准识别直接关乎钻井安全与压裂成败。在天湾地区一口重点超深风险探井的部署论证中，该技术的应用提前刻画出井轨迹穿越的3组小尺度裂缝发育带，帮助工程团队提前预判风险，优化井身结构和压裂方案，完井测试获工业气流，为天山北麓千亿立方米气区勘探开发保驾护航。

The southern margin of the Junggar Basin and the northern foot of the Tianshan Mountains is the main battlefield in the ultra-deep natural gas sector. The gas reservoirs have an average burial depth exceeding 7,000 meters, and the formation pressure coefficient exceeds 2.0. The "three ultra" extreme conditions of ultra-deep, ultra-high temperature, and ultra-high pressure directly determine the accuracy of fracture identification, which is crucial for the safety of drilling and the success of fracturing operations. In the deployment and argumentation of a key ultra-deep risky exploration well in the Tianwan area, the application of this technology enabled the engineering team to accurately depict three sets of small-scale fracture development zones that the well trajectory would pass through, helping them to predict risks in advance, optimize the wellbore structure and fracturing plan, and achieve industrial gas flow during the completion and testing process, thus safeguarding the exploration and development of the trillion-cubic-meter gas field in the northern Tianshan region.