久久久无码人妻精品无码_6080YYY午夜理论片中无码_性无码专区_无码人妻品一区二区三区精99

Global EditionASIA 中文雙語Fran?ais
Business
Home / Business / Industries

Daqing reaches tertiary oil recovery record

By ZHENG XIN | CHINA DAILY | Updated: 2021-12-11 08:38
Share
Share - WeChat
Daqing Oilfield workers handle a rig during drilling operations. WANG JIANWEI/XINHUA

Daqing Oilfield in China's northeastern Heilongjiang province, owned by Daqing Oilfield Co, a subsidiary of China National Petroleum Corp, said on Friday it has reached a significant milestone in its annual tertiary oil recovery, which has exceeded 10 million tons over the past 20 years.

The oilfield has also produced 286 million tons of crude oil so far, making it the world's largest tertiary oil recovery production base.

The company has spent years developing a series of fully developed tertiary oil recovery technologies, which also top the world's rankings, said the parent company CNPC, the country's largest oil and gas company.

Tertiary oil recovery, also known as enhanced oil recovery, is the third stage used to extract oil from an oil reserve.

The primary recovery stage of extracting oil from a reserve works by exploiting the natural disparity in pressure between the surface of the oil well and its subterranean reserves.

Secondary recovery of hydrocarbons involves techniques that compensate the natural energy of the reservoir by injecting fluids, usually water or gas.

The tertiary oil recovery technology has supported the sustainable production of the oilfield, the largest oilfield run by CNPC as well as the country's largest oil production base, while it also pushes forward the development of the world's enhanced oil recovery technology, it said.

Luo Zuoxian, head of intelligence and research at the Sinopec Economics and Development Research Institute, said the Daqing Oilfield has made a substantial contribution to China's oil supplies during the past few decades.

Daqing has been able to maintain sustainable and steady oil output on the back of its technological innovation during the past few years, he said.

"The tertiary oil recovery technology, which adopts physical, chemical and biological methods to take out the residual oil that cannot be exploited with the water flooding technology as much as possible, has improved the recovery ratio of crude oil and made a substantial contribution to China's energy security."

Since the 1960s, Daqing Oilfield began to develop, reserve and apply the tertiary oil recovery technology independently. It has shaped a series of increasingly mature technologies of oil extraction after 40 years of hard work and laborious exploration by its researchers.

Daqing Oilfield has become the largest base for the research and development of the tertiary oil recovery technology and the largest production base adopting the technology in the world.

It has also applied its tertiary oil recovery technology in countries like Russia, Kazakhstan, Indonesia and Oman, the company said.

CNPC has recently discovered a major shale oilfield in Daqing with predicted geological reserves of about 1.268 billion tons.

Top
BACK TO THE TOP
English
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
CLOSE
 
久久久无码人妻精品无码_6080YYY午夜理论片中无码_性无码专区_无码人妻品一区二区三区精99

    欧美国产综合色视频| 天使萌一区二区三区免费观看| eeuss鲁片一区二区三区在线观看| 成人免费在线播放视频| 欧美性大战久久久久久久蜜臀| 免费观看在线综合| 久久精品亚洲麻豆av一区二区 | 亚洲欧美成人一区二区三区| 在线观看亚洲成人| 久久国产精品免费| 国产精品毛片无遮挡高清| 在线观看三级视频欧美| 美国一区二区三区在线播放| 中国av一区二区三区| 在线观看av一区| 麻豆精品一区二区| 亚洲天堂精品视频| 欧美丰满美乳xxx高潮www| 国产福利一区二区三区视频| 亚洲精品老司机| 日韩欧美成人一区| 91亚洲精品乱码久久久久久蜜桃| 亚洲成av人片在线| 久久精品夜色噜噜亚洲aⅴ| 在线视频你懂得一区二区三区| 蜜桃一区二区三区四区| 中文字幕日韩一区| 欧美精品v国产精品v日韩精品 | 51精品视频一区二区三区| 韩国精品一区二区| 一区二区三区91| 久久久一区二区三区捆绑**| 91激情在线视频| 国产麻豆日韩欧美久久| 亚洲一区二区视频| 久久久不卡网国产精品二区| 在线观看国产一区二区| 国产在线播放一区| 亚洲一级片在线观看| 国产日产精品一区| 欧美一区中文字幕| 色拍拍在线精品视频8848| 久久精品久久99精品久久| 亚洲日韩欧美一区二区在线| 欧美videos大乳护士334| 色域天天综合网| 国产福利一区二区三区| 日韩专区欧美专区| 综合网在线视频| 久久久99免费| 91精品中文字幕一区二区三区| 91在线免费视频观看| 韩国成人精品a∨在线观看| 亚洲成人中文在线| 亚洲天堂网中文字| 久久先锋影音av| 制服丝袜日韩国产| 色狠狠色狠狠综合| 成人aaaa免费全部观看| 国产一区二区精品久久99| 日韩在线播放一区二区| 亚洲精品国产视频| 国产精品久久久久影院色老大| 精品久久久久久久人人人人传媒| 欧美日本一区二区三区四区| 91老师片黄在线观看| 国产美女视频一区| 美国毛片一区二区三区| 午夜国产不卡在线观看视频| 亚洲码国产岛国毛片在线| 中文字幕av一区二区三区高| 久久久天堂av| 精品捆绑美女sm三区| 日韩一区二区三区视频在线| 欧美年轻男男videosbes| 日本高清无吗v一区| 99久久久无码国产精品| 粉嫩aⅴ一区二区三区四区五区| 国产一区二区三区免费| 精品一区二区三区视频在线观看| 性做久久久久久久免费看| 亚洲综合在线五月| 亚洲黄色录像片| 亚洲欧美一区二区久久| 国产精品成人免费| 国产精品夫妻自拍| 亚洲欧洲另类国产综合| 亚洲欧美综合色| 亚洲人吸女人奶水| 亚洲色图制服诱惑| 亚洲美女免费视频| 一区二区三区日本| 亚洲图片欧美综合| 亚洲va国产va欧美va观看| 亚洲国产精品麻豆| 午夜视频一区二区三区| 午夜在线电影亚洲一区| 丝袜国产日韩另类美女| 视频一区中文字幕国产| 欧美日韩三级视频| 欧洲一区二区三区免费视频| 欧美亚洲国产bt| 欧美日韩综合在线免费观看| 欧美日精品一区视频| 4438亚洲最大| 精品国精品国产| 国产偷国产偷亚洲高清人白洁| 国产色产综合产在线视频| 国产人妖乱国产精品人妖| 国产精品每日更新在线播放网址| 亚洲色欲色欲www| 亚洲电影在线播放| 日韩av在线免费观看不卡| 美女视频黄久久| 国产精品一二三四区| av亚洲精华国产精华| 色哟哟一区二区| 欧美丰满一区二区免费视频| 欧美变态口味重另类| 欧美激情一区二区在线| 亚洲老司机在线| 婷婷久久综合九色综合绿巨人| 毛片av一区二区| 国产成人免费网站| 91在线视频官网| 欧美日韩成人在线一区| 久久综合五月天婷婷伊人| 国产精品激情偷乱一区二区∴| 亚洲激情网站免费观看| 视频一区二区中文字幕| 国产一区福利在线| av电影天堂一区二区在线观看| 欧美色图天堂网| 日韩欧美国产成人一区二区| 国产日韩高清在线| 一区二区三区精品在线| 久久国产婷婷国产香蕉| 成人av先锋影音| 欧美精品一卡两卡| 久久精品视频免费| 一级日本不卡的影视| 麻豆一区二区在线| 99精品欧美一区二区三区小说| 欧美日韩一级黄| 久久久久久99久久久精品网站| 亚洲精品免费电影| 美美哒免费高清在线观看视频一区二区| 国产成人免费视频精品含羞草妖精| 91福利国产成人精品照片| 日韩精品一区二区三区中文精品| 亚洲国产成人午夜在线一区| 亚洲二区在线观看| 国产精品一品视频| 欧美三级韩国三级日本一级| 久久久五月婷婷| 亚洲五码中文字幕| 国产ts人妖一区二区| 欧美高清性hdvideosex| 欧美国产一区在线| 日本欧美肥老太交大片| 99re这里只有精品视频首页| 日韩女优av电影| 一区二区三区高清在线| 国产一区二区精品在线观看| 欧美色老头old∨ideo| 久久精品亚洲麻豆av一区二区 | 国产精一区二区三区| 欧美三级韩国三级日本一级| 国产蜜臀av在线一区二区三区| 午夜精品久久久久久久99水蜜桃| 高清av一区二区| 日韩一级视频免费观看在线| 亚洲欧美欧美一区二区三区| 国产一区二三区| 欧美老肥妇做.爰bbww| 日韩理论片在线| 国产精品自拍三区| 欧美一卡二卡三卡四卡| 亚洲精品国产第一综合99久久| 国产福利一区在线观看| 亚洲一区二区中文在线| 成人激情图片网| 久久综合999| 日韩影院免费视频| 一本色道**综合亚洲精品蜜桃冫| 久久久久综合网| 蜜臀久久久久久久| 欧美性欧美巨大黑白大战| 国产精品国产三级国产| 国产精品综合二区| 欧美电影免费观看高清完整版 | 成人午夜电影小说| 日韩欧美亚洲另类制服综合在线| 亚洲欧美视频一区| 福利一区在线观看| 久久久亚洲高清| 激情综合色播激情啊| 日韩一区二区精品葵司在线| 亚洲成人激情综合网| 91福利国产成人精品照片|