[1]鄧建明 馬英文.渤海中深層天然氣田鉆完井關鍵技術現狀及展望[J].石油鉆采工藝,2018,40(6):677-683.[doi:10.13639/j.odpt.2018.06.001]
 DENG Jianming,MA Yingwen.Status and prospect of key drilling and completion technologies used in middle-deep natural gas fields of the Bohai Sea[J].Oil Drilling & Production Technology,2018,40(6):677-683.[doi:10.13639/j.odpt.2018.06.001]
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渤海中深層天然氣田鉆完井關鍵技術現狀及展望
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《石油鉆采工藝》[ISSN:1000-7393/CN:13-1072/TE]

卷:
40卷
期數:
2018年6期
頁碼:
677-683
欄目:
鉆井完井
出版日期:
2018-11-20

文章信息/Info

Title:
Status and prospect of key drilling and completion technologies used in middle-deep natural gas fields of the Bohai Sea
文章編號:
1000 – 7393( 2018 )06 – 0677 – 07
作者:
鄧建明 馬英文
中海石油(中國)有限公司天津分公司
Author(s):
DENG Jianming MA Yingwen
Tianjin Branch of China National Offshore Oil Co., Ltd., Tianjin 300459, China
關鍵詞:
渤海油田中深層天然氣田鉆完井關鍵技術發展方向
Keywords:
Bohai Oilfield middle-deep natural gas field well drilling and completion key technology development direction
分類號:
TE52
DOI:
10.13639/j.odpt.2018.06.001
文獻標志碼:
A
摘要:
渤中凹陷西南環帶深層含油氣構造是渤海灣乃至我國東部迄今發現最大的中深層天然氣田,針對該區域地質條件復雜、儲層埋藏深、地層壓力異常、可鉆性差等特性,分析了開發過程中在異常壓力預測、鉆井效率、儲層保護、鉆井綜合提速、井壁穩定、井筒安全及井控風險方面面臨的技術難點,系統總結了近十余年現場實踐形成的渤海中深層天然氣安全環保高效勘探開發的鉆完井關鍵技術體系,包括地質工程一體化快速評價、井身結構優化及安全控制、中深層鉆井提速、抗高溫低密度鉆井液及儲層保護、深層潛山中途裸眼測試等關鍵技術。隨著渤海中深層天然氣勘探領域的進一步拓展,會面臨更為復雜的地質特征, 面臨越來越大的技術挑戰,提出了未來渤海中深層天然氣開發的鉆完井技術應加強能適應更復雜地質工況的設備、工具、材料、新工藝技術的研發以及完善海上應急救援體系,保障渤海中深層天然氣鉆井的安全、環保和高效。
Abstract:
The deep-seated oil and gas bearing structure in the southwest zone of Bozhong sag is the largest middle-deep natural gas field in the Bohai Bay and even in eastern China. To deal with the complex geological conditions, great reservoir depth, abnormal formation pressure and poor drillability in this area, the technical difficulties in the process of gas field development were analyzed from the aspects of abnormal pressure prediction, drilling efficiency, reservoir protection, comprehensive ROP (rate of penetration) improvement, borehole stability, wellbore safety and well control risk. Then, the key drilling and completion technologies that have been developed for the safe, environmental and efficient exploration and development of middle-deep natural gas in the Bohai Sea based on field practice in recent ten years were summarized systematically, including geology-engineering integrated fast evaluation, casing program optimization and safety control, middle-deep ROP improvement, high-temperature low-density drilling fluid and reservoir protection, and open hole DST in deep buried hill. With the further expansion of exploration field of middle-deep natural gas in the Bohai Sea, the geological characteristics will be more complex and the technical challenges will be more difficult. Finally, therefore, it was proposed to strengthen the research and development of the drilling and completion equipments, tools, materials and technologies for the development of middle-deep natural gas reservoirs with more complex geological conditions in the Bohai Sea and complete the offshore emergency rescue system, so as to guarantee the safety, environmental protection and efficiency of middle-deep gas well drilling in the Bohai Sea.

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