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2008 PetroChina Upstream Scientific and Technological Progress
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2008 PetroChina Upstream Scientific and Technological Progress

01 Origin of natural gas and large gas fields in China

Remarkable achievements in the research on the formation mechanism

01中国天然气成因及大气田

形成机制研究成果显著

PetroChina has made significant progress in research on the origin of natural gas and the formation mechanism of large gas fields in China. This research systematically analyzed the origin of natural gas, and proposed 36 identification indicators. Among them, in 2008, 4 new identification indicators were proposed, including light hydrocarbon isotopes to identify coal-derived gas and oil-based gas, which improved and developed the identification theory of natural gas, making our country more effective. The natural gas identification theory is at the international frontier level, and has important theoretical significance for guiding the identification of natural gas origin and gas source comparison.

国石油开展中国天然气成因及大气田形成机制研究取得重大进展。该项研究系统地分析了天然气成因,提出36项鉴别指标,其中2008年提出轻烃同位素判识煤成气和油型气等4项新鉴别指标,完善和发展了天然气的鉴别理论,使我国天然气鉴别理论处于国际前沿水平,对指导天然气成因判识、气源对比具有重要的理论意义。

The research on the main controlling factors for the formation of large gas fields has developed from qualitative to quantitative, which is of great significance to guide my country to improve the discovery rate of large gas fields. Among the 11 large gas fields above 1000×108 cubic meters discovered in my country, 7 of them have been correctly predicted 4 to 14 years in advance. Research on the formation mechanism of large gas fields, dissect the formation mechanism of various typical large gas fields such as overpressure and related low porosity and permeability sandstone, paleokarst, etc., especially the large inorganic alkanes.

The research on the gas field is the first in the world, which has promoted the natural gas genesis theory from dualism to pluralism, which has important theoretical guiding significance. The study of overpressure and its related gas fields reveals the oil and gas generation mechanism in overpressure environment and the accumulation mechanism of overpressure gas fields, and provides a theoretical basis for finding overpressure and related gas reservoirs.

大气田形成主控因素研究从定性向定量化发展,对指导我国提高大气田发现速率具有重大意义。在我国目前发现的111000×108立方米以上大气田中,其中7个提前4年至14年作了正确的预测。大气田形成机制研究,解剖了超压及其相关低孔渗砂岩、古岩溶等各类典型大气田的形成机制,尤其是无机烷烃大气田的研究在世界上尚属首例,推动了天然气成因理论由二元论走向多元论,具有重要的理论指导意义。超压及其相关大气田的研究揭示了超压环境油气生成机理和超压大气田成藏机制,为寻找超压和与之有关的气藏提供了理论基础。

The important progress made in the research on the genesis of natural gas and the formation mechanism of large gas fields in China has effectively guided the exploration practice of natural gas in my country and provided a scientific basis for the huge growth of natural gas reserves. The research results in the identification of the origin of natural gas, the theory of the origin of inorganic alkane gas, the main controlling factors of large gas fields and the formation mechanism of high-pressure natural gas reservoirs have generally reached the international leading level.

中国天然气成因和大气田形成机制研究方面取得的重要进展,有效指导了我国天然气的勘探实践,为天然气储量的巨大增长提供了科学依据。在天然气成因鉴别、无机烷烃气成因理论、大气田主控因素和高压天然气藏的形成机制等方面的研究成果总体上达到国际领先水平。

02Oil and Gas Exploration and Development in Qaidam Basin

Important progress has been made in key technology research

02柴达木盆地油气勘探开发

关键技术研究取得重要进展

The key technology research on oil and gas exploration and development in the Qaidam Basin has made important progress in theoretical research, technology development and integrated application through special and concentrated research, and has achieved remarkable results.

柴达木盆地油气勘深开发关键技术研究通过专项集中攻关,在理论研究、技术开发和集成应用等方面取得重要进展,成效显著。

Two important progresses have been made in theoretical and technical research. The first is to form three new basic research understandings, including the gradual clear understanding of the lithologic oil and gas interception and enrichment law in the oil-rich sag in the western Qaidam Basin, the establishment of a unified third-order sequence stratigraphic framework in the western Qaidam area, and the further clarification of the key areas for recent exploration. Zone: Deepen the dynamic accumulation model of biogas, expand the fields of deep biogas and lithologic gas reservoirs, etc.: Rebuild the three-dimensional geological model of some oilfields in the Yuejin oil area, which provides a basis for the adjustment of the development plan. The second is to initially develop and integrate 3 sets of supporting technologies, the supporting technology for continuous processing and interpretation of large-area 3D seismic data in western Qaidam, the supporting technology for gas-bearing detection in the Sanhu area, and the logging interpretation and comprehensive evaluation technology for low-permeability reservoirs in western Qaidam. The technology makes the sand body drilling coincidence rate of lithological targets reach 84%, and the interpretation coincidence rate of complex reservoirs reaches 83.7%.

在理论与技术研究方面取得两个方面重要进展。一是形成3项基础研究新认识,包括对柴西富油凹陷岩性油气截富集规律的认识逐渐清晰,建立柴西地区统一的三级层序地层格架,进一步明确了近期勘探的重点区带:深化生物气动态成藏模式,拓展了生物气深层和岩性气藏等锄探领域:重建跃进油区部分油田三维地质模型,为开发方案的调整提供了依据。二是初步研发与集成3套配套技术,柴西大面积三维地震资料连片处理解释配套技术、三湖地区天然气含气检测配套技术和柴西低渗储层测井解释与综合评价技术,这些技术使岩性目标的砂体钻探符合率达到84%,复杂储层解释符合率达到83.7%。

These research advances have made the development of hoe detection remarkable. First, complete high-quality reserves have been established in the Kunbei fault terrace belt in the oil-rich sag in the western Qaidam Basin. The southwestern part of Qaidam has formed a reserve scale of 100 million tons, and the northwestern part of Qaidam is expected to form a new replacement area. Second, new gas-bearing strata and new types of gas reservoirs were discovered in the Sanhu area. Important signs of natural gas exploration in the northern margin of the Qaidam Basin were discovered, and the natural gas resource base was further consolidated. Thirdly, the pilot tests such as secondary development to enhance oil recovery and drainage and gas recovery have achieved initial results.

这些研究进展使锄探开发成果显著。一是在柴西富油气凹陷昆北断阶带落实了整装优质储量,柴西南区形成亿吨级储量规模,柴西北有望形成新的接替领域。二是三湖地区发现新的含气层系和新类型气藏,柴北缘天然气勘探见重要苗头,天然气的资源基础进一步夯实。三是二次开发提高采收率、排水采气等先导试验初见成效。

03 Development of gas fields containing C02 and C02

Significant progress has been made in oil displacement technology

03C02气田开发及C02

驱油技术取得重大进展

Under the dual pressure of resources and environment, CO2 (carbon dioxide) enhanced oil recovery technology has become a hot spot in the research and development and application of the international petroleum industry. After nearly two years of tackling key problems, PetroChina has made important breakthroughs in the basic theoretical research, process technology R&D integration and field pilot tests of CO-containing, gas field development and CO flooding technology. Effective utilization and storage laid the foundation.

在资源和环境的双重压力下,CO2(二氧化碳)提高采收率技术成为国际石油界研发和应用的热点。中国石油经过近两年的攻关,在含CO,气田开发及CO驱油技术的基础理论研究、工艺技术研发集成和现场先导试验上取得重要突破,为含CO,气田安全高效开发和C0,资源有效利用及埋存打下了基础。

Five new understandings were formed, which provided the basis for engineering design: (1) Constructed the theoretical framework of C0, formation and enrichment in the Songliao Basin; (2) clarified the characteristics and seepage laws of volcanic rock reservoirs; The phase characteristics and displacement mechanism of the crude oil system have been clearly understood: (4) The CO corrosion and protection mechanism are clarified; (5) The understanding of the basic problems in the gathering and transportation of natural gas containing CO has been deepened.

形成5项新认识,为工程设计提供了依据:(1)构建了松辽盆地C0,形成与富集理论框架;(2)明确了火山岩储层特征与渗流规律:(3)CO2和地层原油体系相态特征与驱替机理了清晰的认识:(4)明确了C0腐蚀与防护机理:(5)深化了含CO,天然气集输中基础问题的认识。

2 sets of supporting technologies were developed and integrated, and the mine field test plan was prepared: (1) The safe development technology of natural gas containing CO2, including CO-containing, natural gas reservoir engineering, safe drilling and completion, gas production technology, gathering and transportation and processing technologies; ( 2) C0 control enhanced oil recovery technology, including CO, flooding reservoir engineering optimization design, injection-production technology, monitoring, expanding swept volume, surface engineering and other technologies.

研发集成2套配套技术,编制了矿场试验方案:(1)C02天然气安全开发技术,包括含CO,天然气气藏工程、安全钻完井、采气工艺、集输与处理等技术;(2)C0驭提高采收率技术,包括CO,驱油藏工程优化设计、注采工艺、监测、扩大波及体积、地面工程等技术。

Established 2 sets of 40 technical standards and 2 HSE systems, which provided a basis for ensuring the safe and standardized implementation of field tests.

建立240项技术标准和2HSE体系,为保障现场试验的安全、规范实施提供了依据。

The trial production of natural gas containing CO2 and CO in Jilin Oilfield, and the field test of oil displacement is progressing smoothly. It is expected that C0, Yu can improve the oil recovery by more than 13% than water flooding.

吉林油田含C02天然气试采和CO,驱油现场试验进展顺利。预计C0,驭可比水驱提高采收率13%以上。

High-efficiency development technology for ultra-low permeability oilfields is important

Breakthrough supports the rapid production increase of Changqing Oilfield

04特低渗油田高效开发技术重大

突破支撑长庆油田快速上产

Ultra-low permeability oilfields generally have the characteristics of thin oil layer, deep burial, poor reservoir physical properties, and strong pressure sensitivity, which are very difficult to develop. After recent years of research and development, Changqing Oilfield has innovated and integrated 17 supporting technologies for the development of ultra-low permeability oilfields, successfully realizing the efficient development of ultra-low permeability oilfields such as Jiyuan, and providing technical support for the rapid production increase of Changqing Oilfield. The important technologies formed include: strengthening the comprehensive evaluation in the early stage, realizing the rapid conversion of reserves, finely formulating the overall development plan, and minimizing the development risk: strengthening the reservoir research technology based on the fine description of the reservoir, and studying the comprehensive classification of the reservoir and the rapid evaluation method. According to the characteristics of different layers of reservoirs, different well patterns such as triangle, square and diamond are used: two sets of well patterns are used in the overlapping area of multiple oil layers. In terms of stimulation, a series of supporting technologies such as low-damage fracturing fluid technology and high-strength proppant optimization have been formed to improve the stimulation effect: the group-type well group development technology, dual-process station construction technology, cluster-type well group development technology adapted to the landform characteristics of loess hilly areas such as Jiyuan Well group single-pipe gathering and transportation technology and other surface supporting technology.

特低渗透油田普遍具有油层薄、埋藏深、储层物性差、压力敏感性强等特点,开发难度很大。经过近年的攻关与研发,长庆油田创新集成17项特低渗透油田开发配套技术,成功实现姬原等特低渗油田的高效开发,为长庆油田快速上产提供了技术保障。形成的重要技术包括:强化前期综合评价,实现储量快速转化,精细编制整体开发方案,最大限度降低开发风险:强化油藏精细描述为主的储层研究技术,研究油藏综合分类、快速评价方法和技术,优选富集区;针对不同层系油藏特征,采用三角形、正方形、菱形等不同井网形式:多油层叠合区采用两套井网一次布井:整体实施超前注水技术:储层改造方面形成低伤害压裂液技术、高强度支撑剂优选等一系列提高改造效果的配套技术:采用适应姬塬等黄土丘陵区地貌特征的群式井组开发技术、双流程建站技术、丛式井组单管集输工艺技术等地面配套工艺技术。

05Remote sensing supporting technology for complex surface seismic engineering

The application effect is remarkable in the western region

05复杂地表地震工程遥感配套技术

在西部地区应用效果显著

PetroChina has used remote sensing technology to develop complete remote sensing supporting technologies for complex surface seismic engineering and form special software with independent intellectual property rights. The construction of restricted areas, the improvement of the data quality of complex surface seismic exploration areas, the improvement of construction efficiency, the reduction of hoeing costs, and the assessment of safety risks are very important. According to incomplete statistics, only three oilfields in Tarim, Xinjiang and Qinghai saved 212 million yuan in exploration investment.

中国石油采用遥感技术手段研发出完整的复杂地表地震工程遥感配套技术并形成具有自主知识产权的专用软件,通过在塔里木、新疆、青海、吐哈等油田的地震工程实践证实,该项技术在减少施工禁区、提高复杂地表地震探区资料品质、提高施工效率、降低锄深成本、评估安全风险等方面作用十分明显。据不完全统计,仅在塔里木、新疆、青海三家油田就节约勘探投资2.12亿元人民币。

The five main innovations achieved by this technology include: (1) Automatic selection technology of survey lines based on remote sensing information—Realizing the transformation of seismic acquisition and deployment design in complex exploration areas from manual qualitative to automatic quantitative, making survey line deployment more scientific and efficient ; (2) Automatic optimization design technology of excitation point position based on remote sensing information—Using remote sensing thematic information to evaluate excitation conditions to realize automatic optimization of optimal excitation conditions in complex surface areas, which can effectively improve the signal-to-noise ratio of single shot data: (3) Receiving Combination Evaluation and Combination Center Point Position Automatic Adjustment Technology—Using remote sensing thematic information to evaluate the receiving conditions and deployment capabilities of the receiving combination to realize the pre-evaluation of the receiving conditions and the automatic design of the receiving position: (4) Preliminarily form a method for optimizing the deployment of near-surface survey control points and the use of multi-spectral remote sensing information to assist the near-surface low velocity zone prediction method: (5) Developed the "Easy Selection" seismic engineering surface information support and auxiliary design software (V1.0) with independent intellectual property rights, and realized the tangible technical achievements.

这项技术取得的5项主要创新成果包括:(1)基于遥感信息的测线自动优选技术一实现复杂探区地震采集部署设计由人工定性到自动定量的转变,使测线部署更科学、高效;(2)基于遥感信息的激发点位置自动优化设计技术一利用遥感专题信息评价激发条件,实现复杂地表区最佳激发条件的自动优选,能有效提高单炮资料信噪比:(3)接收组合评价与组合中心点位置自动调整技术一利用遥感专题信息评价接收组合的接收条件和展开能力,实现接收条件的预评价与接收位置自动设计:(4)初步形成优化部署近地表调查控制点方法和利用多光谱遥感信息辅助近地表低降速带预测方法:(5)研发了具有自主知识产权的易选地震工程地表信息支持与辅助设计软件(V1.0),实现技术成果有形化。

The successful research and development of this technology marks the first time in the world that China Shichi has combined remote sensing technology with seismic technology to realize automatic optimization of data acquisition, line selection, and point selection. The technology level is in a leading position in the world.

这项技术的研发成功,标志着中国石池在世界上第一次将遥感技术与地震技术相结合,实现数据采集自动优化选线选点,技术水平处于世界领先地位。

06Integration of multiple drilling technologies to help PetroChina

The annual drilling scale of horizontal wells exceeded 1,000

06多项钻井技术集成助力中国石油

水平井年钻井规模突破1000

PetroChina has accelerated the improvement of horizontal well drilling technology, achieved breakthroughs in the integration of multiple technologies such as lateral wells, extended reach wells, underbalanced wells and geosteering, and achieved remarkable results in promoting the application scale and scope of horizontal wells.

中国石油加速提升水平井钻井技术水平,在分支井、大位移井、欠平衡井以及地质导向等多项技术集成上获得突破,在推进水平井的应用规模和范围方面取得显著成效。

The integration of multiple technologies in horizontal wells is mainly manifested in four aspects. (1) The integrated application of underbalanced technology and horizontal drilling technology has been successfully realized, which has greatly increased the production of a single well, and the average production has been increased by more than 4.8 times. An ammonia gas underbalanced horizontal well in the Southwest Oil and Gas Field, with a reservoir drilling rate of 90%, directly obtained 56,300 cubic meters of gas, and the output was 4 to 6 times that of the adjacent vertical well before the reservoir reconstruction. (2) Geosteering technology provides a reliable technical guarantee for the development of thin-layer, bottom-water and complex oil reservoirs. In 2008, a total of 348 wells were used, and the average oil layer drilling rate was 87.4%. The CGDS-1 near-bit geosteering drilling system with independent intellectual property rights has successively completed 3 horizontal wells in Liaohe Oilfield, with a cumulative footage of 1,047 meters. The near-bit measurement advantage is significantly higher than that of similar imported products. (3) A number of breakthroughs have been made in the application of multilateral horizontal well technology. Liaohe Oilfield applied branch drilling technologies such as suspended sidetracking, friction reduction and drag reduction, and completed a record-breaking 20 branch horizontal wells. The footage of the horizontal section of the oil layer was 4333.19 meters, and the initial daily oil production after acidification was 51 tons; completed the drilling of the first buried hill formation in China. The multi-layer branched well in the window has a length of 4369.92 meters in the reservoir, with a daily oil production of 53.4 tons, which is 6 to 10 times that of the adjacent wells in the same block. (4) The drilling technology for extended-reach horizontal wells has been further developed. Dagang Oilfield completed 7 extended-reach horizontal wells with a water-to-vertical ratio of over 2 by applying rotary geosteering technology and floating casing technology. Among them, the 8Nm-H3 well in Zhuanghai reached a water-to-vertical ratio of 3.92, creating a new CNPC extended-reach well water-to-vertical ratio. record.

水平井多项技术集成主要表现在4个方面。(1)成功实现欠平衡技术与水平钻井技术的集成应用,大幅度提高了单井产量,平均提高产量达4.8倍以上。西南油气田一口氨气欠平衡水平井,储层钻遇率达到90%,直接获气5.63万立方米,产量是邻近直井储层改造前的4倍至6倍。(2)地质导向技术为开发薄层、底水油藏以及复杂油藏提供了可靠的技术保障。2008年共应用348井次,平均油层钻遇率87.4%。具有自主知识产权的CGDS-1近钻头地质导向钻井系统在辽河油田连续完成3口水平井,累计进尺1047米,近钻头测量优势明显高于进口同类产品水平。(3)多分支水平井技术应用获得多项突破。辽河油田应用悬空侧钻、降摩减阻等分支钻井技术,完成一口创纪录的20分支水平井,油层水平段进尺4333.19米,酸化后初期日产油51吨;完成国内第一口潜山地层开窗的多层分支井,油藏内井段长4369.92米,日产油53.4吨,产量是同区块邻井产量的6倍至10倍。(4)大位移水平井钻井技术得到进一步发展。大港油田应用旋转地质导向技术和漂浮下套管等技术完成7口水垂比超过2的大位移水平井,其中庄海8Nm-H3井水垂比达到3.92,创造中国石油大位移井水垂比新纪录。

In 2008, PetroChina achieved a historic breakthrough in horizontal well drilling and completed 1,005 horizontal wells, which provided an important guarantee for the company to increase oil and gas production and reduce development costs.

2008年中国石油水平井钻井实现历史性突破完成水平井1005口,为公司提高油气产量和降低开发成本提供了重要保障。

07 Imaging logging, digital core, processing and interpretation

Breakthrough progress in integrated technology research

07成像测井、数字岩心、处理解释

一体化技术研究获突破性进展

By tackling key technologies such as logging data acquisition technology, petrophysical technology, processing and interpretation technology, and applying information technologies such as satellite, Internet, and ERP, PetroChina has formed logging with rapid imaging logging, rapid and accurate interpretation, and timely and effective management. network. At present, this technology has successfully completed the logging pattern test in Changqing Oilfield, achieving a breakthrough in the integration of imaging logging, digital core, processing and interpretation.

中国石油通过对测井数据采集技术、岩石物理技术和处理解释技术等核心技术的攻关,应用卫星、互联网和ERP等信息技术,形成具有快速成像测井、快速准确解释、及时有效管理的测井网络。目前这项技术已经在长庆油田成功完成测井网试验,实现成像测井、数字岩心、处理解释一体化的突破。

The development of a complete set of logging equipment has greatly improved the logging speed and imaging quality: the integrated combined logging system can go down well to obtain the logging data required for the whole formation evaluation at one time, and the operation time efficiency has been improved by more than 30%: the research and development of the imaging logging instrument has achieved Significant progress has been made, realizing 430,000 bits/s high-speed cable teletransmission technology, and small-scale production of four instruments including array induction, array acoustic wave, micro-resistivity scanning imaging, and ultrasonic imaging. The array induction imager has been put into application in Changqing and other oilfields, and more than 180 wells have been logged.

成套测井仪器装备的开发大大提高了测井速度和成像质量:集成化组合测井系统能够一次下井取全地层评价所需的测井资料,作业时效提高30%以上:成像测井仪器研发取得重大进展,实现43万位/秒的高速电缆遥传技术,阵列感应、阵列声波、微电阻率扫描成像、超声成像四种仪器实现小批量生产。阵列感应成像仪在长庆等油田投入应用,测井180多口,对低孔低渗、低阻等疑难油气层识别效果非常显著。  

Digital core technology provides a guarantee for fast and accurate interpretation: through repeated test research on more than 300 cores in Changqing, Tuha and Qinghai, a digital method to reproduce rock physical properties has been developed, which greatly shortens the time required to fully describe the core. time. LEAD2.0 software realizes the integrated application of conventional logging and imaging logging in open-hole wells, production logging in cased wells and engineering logging, processing and interpreting more than 12,000 well times. A logging interpretation knowledge database is preliminarily formed, and functions such as query of offset well data, interpretation of model parameters and interpretation standards, call of charts, submission of interpretation results, and expert remote support are realized during the interpretation process.

数字岩心技术为快速准确解释提供保障:通过对长庆、吐哈和青海300多块岩心的反复试验研究,开发出一种侠速复现岩石物理特性的数字化方法,极大缩短了完整描述岩心的时间。LEAD2.0软件实现裸眼井常规测井与成像测井、套管井生产测井与工程测井的一体化应用,处理解释12000多井次。初步形成测井解释知识数据库,实现解释过程中对邻井资料的查询、解释模型参数和解释标准以及图版的调用、解释成果提交以及专家远程支持等功能。

08The key technology of the second line of the West-East Gas Pipeline is significant

Breakthroughs and strong support for the construction of the West Second Line Project

08西气东输二线关键技术重大

突破有力支撑西二线工程建设

The Second West-East Gas Pipeline is famous for its high strength, high pressure and large diameter, which is unprecedented in the history of world pipeline construction. PetroChina has carried out targeted research, strongly supported the construction of the second West-East Gas Pipeline Project, and improved the overall technological innovation capability of PetroChina's pipe-making and pipeline construction.

西气东输二线以高强度、高压力、大口径著称,在世界管道建设史上前所未有。中国石油针对性地开展攻关,有力地支撑了西气东输二线工程建设,提升了中国石油制管与管道建设整体科技创新能力。

In the aspect of large-diameter, high-grade steel pipe and pipe making, 4 categories and 7 new products with independent intellectual property rights have been developed, and domestic industrial production has been successfully realized. Including X80 steel grade diameter 1219 × 18.4 mm spiral submerged arc welded pipe, X80 steel grade diameter 1219 × 22 mm straight seam arc welded pipe, X80 steel grade diameter 1219 × 22 mm, 25.7 mm and 32 mm hot simmering elbow, DN1200 × DN1200×DN1000 (46mm and 52mm) hot-drawn tee fittings, etc. The new product of X80 steel wire flux enables the welding speed to reach 1.7 m/min, which is 30% higher than that of the West-East Gas Pipeline, and the welding qualification rate reaches 98.89%. In terms of pipe fittings and construction technical standards, 16 standards for steel plates, steel pipes, elbows, pipe fittings and large deformation steel pipes and 17 engineering construction technical standards have been researched and formulated for ordering, pipe design, and production of steel pipes for the Second West-East Gas Pipeline Project. and construction provides a scientific basis.

在大口径、高钢级管材与制管方面,研制出具有自主知识产权的47项新产品,成功实现国产工业化生产。包括X80钢级直径1219×18.4毫米螺旋埋弧焊管,X80钢级直径1219×22毫米直缝理弧焊管,X80钢级直径1219×22亳米、25.7毫米及32毫米热煨弯管,DN1200×DN1200×DN1000(46毫米及52毫米)热拔三通管件等。X80钢焊丝焊剂新产品使焊接速度达1.7/分钟,比西气东输一线提高30%,焊接合格率达98.89%。在管材管件与施工技术标准方面,研究制订了16项钢板、钢管、弯管、管件及大变形钢管标准和17项工程施工技术标准,为西气东输二线工程钢管订货、管道设计、钢管生产和施工建设提供了科学依据。

Major breakthroughs have been made in 6 researches including the development of CYW-1422 vertical hydraulic pipe bender and the research on strain-based pipeline design method. Among them, more than 100 X80 steel pipe automatic welding, semi-automatic welding, joint welding, rework welding and other welding processes have been formed, which have strong guiding significance for the welding construction of the second West-East Gas Pipeline Project. In addition, important progress has also been made in 16 areas such as fracture control research, anti-corrosion repairing research, gas storage site selection, integrity management technology research, safety early warning technology research, etc. Provide technical support. PE

CYW-1422型垂直液压弯管机研制、基于应变的管道设计方法研究等6项研究取得重大突破。其中,研究形成的100余项X80钢管自动焊、半自动焊、连头焊、返修焊等焊接工艺,对西气东输二线工程的焊接施工具有很强的指导意义。此外,在断裂控制研究、防腐补口研究、储气库库址筛选、完整性管理技术研究、安全预警技术研究等16个方面也取得重要进展,将为西气东输二线工程建设和安全运行提供技术保障。PE

      

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Keywords关键词:Significant achievements have been made in the research on the origin of natural gas and the formation mechanism of large gas fields in China; important progress has been made in the research on key technologies of oil and gas exploration and development in the Qaidam Basin; important progress has been made in the research on key technologies of oil and gas exploration and development in the Qaidam Basin; Major progress; a major breakthrough in efficient development technology for ultra-low permeability oilfields supports the rapid production increase of Changqing Oilfield; the application of remote sensing supporting technologies for complex surface seismic engineering has achieved remarkable results in the western region; the integration of multiple drilling technologies has helped PetroChina's annual drilling scale of horizontal wells exceed 1,000 ;Breakthrough progress has been made in the research on the integration of imaging logging, digital core, processing and interpretation; the major breakthroughs in the key technologies of the second West-East Gas Pipeline have strongly supported the construction of the second West-East pipeline.

中国天然气成因及大气田形成机制研究成果显著;柴达木盆地油气勘探开发关键技术研究取得重要进展;柴达木盆地油气勘探开发关键技术研究取得重要进展;C02气田开发及C02驱油技术取得重大进展;特低渗油田高效开发技术重大突破支撑长庆油田快速上产;复杂地表地震工程遥感配套技术在西部地区应用效果显著;多项钻井技术集成助力中国石油水平井年钻井规模突破1000;成像测井、数字岩心、处理解释一体化技术研究获突破性进展;西气东输二线关键技术重大突破有力支撑西二线工程建设.

 

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Poster发布人:    Clark Guo, CCSC Technology, Shanghai, China, 2022.06         Youtube: Clarkwellhead  

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