Name: FEODE One-Trip Outside-Suspension Well Abandonment Tool & Service
Brand: FEODE

3D · ONE TRIP三维演示 · 一趟管柱

How the outside-suspension tool
recovers a subsea wellhead外悬挂工具如何
回收水下井口

Illustration: proportions and internal details are simplified.示意图：比例与内部细节经过简化。

Inner strings first先回收内层套管

The inner casing strings are cut and pulled before the wellhead itself is recovered.回收井口之前，先切割并起出内层套管。

Locked outside, cutting inside外部锁定，内部切割

The assembly lands over the wellhead, grips it and locks. Below the mudline the screw motor turns the hydraulic cutter through the 20 in. and 36 in. (or 30 in.) strings while the string above stays stationary.外悬挂总成套坐在井口上并抓取锁定。泥线以下，螺杆马达驱动水力割刀同时切割 20″ 与 36″（或 30″）双层套管，上部管柱保持不转。

Outside-suspension assembly外悬挂总成
Grips and locks on the wellhead抓取并锁定井口
Screw motor螺杆马达
Non-rotating stabilizer非旋转扶正器
Hydraulic cutter水力割刀
Mudline泥线

One trip out一趟起出

With the cut complete, the same trip brings the wellhead and the cut casing to surface.切割完成后，同一趟管柱将井口和切下的套管一并起出。

From 784m to 2,083m — every record set in the South China Sea 从 784 米到 2,083 米 — 全部纪录均诞生于南海

2012

784 m

HYSY981 platform · China's first deepwater subsea wellhead retrieval海洋石油981平台 · 中国首次深水水下井口切割回收

2019

1,831 m

YL8-3-1 well · Yongle Field, South China SeaYL8-3-1 井 · 永乐油田，南海

2019

1,901 m

YL8-1-2 well · Bluewhale 1 platform · 11h single-trip cutYL8-1-2 井 · 蓝鲸一号平台 · 11小时单趟切割

2021

2,430 m

BD21-1-1 well · Fenjin platform · 9-5/8″ casing cutBD21-1-1 井 · 奋进号平台 · 9-5/8″ 套管切割

2024

2,083 m

YL10-6-4 well · First domestic P&A above 2,000mYL10-6-4 井 · 国内首次突破 2,000 米水深弃井National Record国内纪录

Outside-Suspension Single-Trip Cutting & Retrieval System 深水外悬挂一趟式套管切割回收工具

A fully domestically developed deepwater subsea wellhead retrieval system. The single-trip rotary spear, hydraulic cutter, and screw-motor outside-suspension power assembly perform synchronised cutting and retrieval in one run — saving 15-20 hours and US$400-500k per well compared with conventional methods. 完全自主研发的深水水下井口切割回收系统。一趟式旋转捞矛、水力割刀与外悬挂螺杆动力总成在一趟作业中完成同步切割与回收 — 较传统方法每井节省 15-20 小时、40-50 万美元成本。

Why operators choose FEODE for deepwater P&A 国际作业商选择远东弃井的原因

Single-Trip Synchronised Operation一趟式同步作业

Cutting and retrieval performed in a single run-in-hole — eliminating one full round-trip of pipe handling and reducing operational risk on critical-path rig hours.切割与回收在同一趟作业中同步完成 — 省去一趟起下钻时间，减少关键路径作业风险。

Cuts Under Tension带张力切割

Slip mechanism remains stationary while the cutting head operates under tension — providing a cleaner cut and the ability to back-out and release at any moment if needed.卡瓦机构保持静止，切割头在张力作用下作业 — 切割面更平整，且可随时倒开脱手。

Fully Domesticated Technology全国产化技术

The first fully domestic outside-suspension screw-motor cutting & retrieval system in China, breaking the foreign monopoly on deepwater subsea wellhead retrieval since 2009.国内首套全国产化外悬挂螺杆动力水下井口切割回收系统，自2009年起打破国外垄断。

National Patent & Major Programme Output国家专利与重大专项成果

Holder of multiple national patents. Originally developed under China's 12th Five-Year Plan National Major Science & Technology Programme.获多项国家专利。国家科技重大专项十二五立项成果。

Time & Cost Saving显著的时间与成本节约

15-20 hours saved per well versus conventional methods. US$400-500k cost reduction per operation — directly improving project economics and reducing weather-window exposure.较传统作业每井节省 15-20 小时，降低成本 40-50 万美元 — 直接改善项目经济性，减少作业窗口暴露风险。

National Award Recognition国家奖项认可

National Science & Technology Progress Award — Second Prize (2007), and Shenzhen Science & Technology Progress Award — Second Prize (2020, "Deepwater Subsea Wellhead Cutting & Retrieval Tool System").国家科技进步二等奖（2007）；深圳市科技进步二等奖（2020，"深水水下井口切割回收工具系统研制及应用"）。

Field-validated across the South China Sea 南海全海域实战验证

CURRENT NATIONAL RECORD 现役国内水深纪录

YL10-6-4

2,083 mWater Depth水深 2024-01Operation Date作业时间 CNOOCOperator作业方

January 2024. First Chinese P&A operation to exceed 2,000m water depth at the Yongle field. Successfully cut and retrieved subsea wellhead at 2,083m, setting the all-time national record for abandonment water depth. 2024年1月。永乐油田作业，国内首次突破 2,000 米水深弃井，成功在 2,083 米深度切割并回收水下井口，刷新中国弃井作业水深纪录。

SINGLE-TRIP MILESTONE 一趟式作业标杆

YL8-1-2

1,901 mWater Depth水深 2019-08Operation Date作业时间 Bluewhale 1Platform作业平台

August 2019. Bluewhale 1 / HYSY981 platform. Completed 20″ × 36″ × δ2″ cut and retrieval at 1,942.82m depth in only 11 hours — demonstrating the single-trip system at near-record water depth. 2019年8月。蓝鲸一号 / 海洋石油 981 平台。在 1,942.82 米深度仅用 11 小时完成 20″ × 36″ × δ2″ 切割回收 — 验证一趟式系统在近纪录水深下的成熟可靠。

HPHT EXPLORATION 高温高压探井

DF17-2-1

HTHPWell Type井别 2020-03Operation Date作业时间 249 min20"/30" Cut Time20"/30" 切割用时

March 2020. HPHT exploratory well at the Dongfang field. Sequential cuts: 9-5/8″ @ 900m (30 min) → 13-3/8″ @ 350m (25 min) → 20″ & 30″ at 4m below mudline (249 min). All cuts completed in single mobilization. 2020年3月。东方油田高温高压探井。连续切割：9-5/8″@900m（30分钟）→ 13-3/8″@350m（25分钟）→ 20″ & 30″ 泥线下 4m（249分钟）。一次进场完成全部切割。

RECORD-BREAKING DEPTH 破纪录深度

BD21-1-1

2,430 mCut Depth切割深度 2021-05Operation Date作业时间 FenjinPlatform作业平台

May 2021. Zhanjiang operations area. Successfully completed 9-5/8″ casing cut at 2,430 m in a single run — the record production-casing cut depth achieved by FEODE at that time. 2021年5月。湛江作业区。在 2,430 米深度一次完成 9-5/8″ 套管切割 — 远东石油当时作业水深纪录（生产套管切割）。

Planning a deepwater P&A operation? 规划深水弃井作业？

Contact our engineering team to discuss feasibility, tooling configuration, and operational timeline for your project. 联系我们的工程团队，共同评估项目可行性、工具配置与作业时间安排。

One-trip outside-suspension tool一趟式外悬挂工具	Casing + conductor, single run
Rig-time saving per well每井省钻机时间	15–20 hrs (~US$400k–500k)
Abandonment jobs (2024-2025)弃井作业井次（2024—2025）	168 jobs · 166 wells
Deepwater abandonment (single trip)深水弃井（一趟）	2,083 m
In deepwater service since深水作业始于	2009
Recognition国家科技重大专项支持成果	National S&T Major Project · national patents国家科技重大专项 · 多项国家专利

How the outside-suspension tool
recovers a subsea wellhead外悬挂工具如何
回收水下井口

Inner strings first先回收内层套管

Locked outside, cutting inside外部锁定，内部切割

One trip out一趟起出

From 784m to 2,083m — every record set in the South China Sea 从 784 米到 2,083 米 — 全部纪录均诞生于南海

Outside-Suspension Single-Trip Cutting & Retrieval System 深水外悬挂一趟式套管切割回收工具

C9 / C13 Hydraulic CuttersC9 / C13 系列水力割刀

Screw-Motor Power Pack外悬挂螺杆动力总成

String Configuration钻具组合

Why operators choose FEODE for deepwater P&A 国际作业商选择远东弃井的原因

Field-validated across the South China Sea 南海全海域实战验证

From spud to seabed.
One run-in. 一趟下入，
从甲板到海底井口。

Planning a deepwater P&A operation? 规划深水弃井作业？

How the outside-suspension toolrecovers a subsea wellhead外悬挂工具如何回收水下井口

Inner strings first先回收内层套管

Locked outside, cutting inside外部锁定，内部切割

One trip out一趟起出

From 784m to 2,083m — every record set in the South China Sea 从 784 米到 2,083 米 — 全部纪录均诞生于南海

Outside-Suspension Single-Trip Cutting & Retrieval System 深水外悬挂一趟式套管切割回收工具

C9 / C13 Hydraulic CuttersC9 / C13 系列水力割刀

Screw-Motor Power Pack外悬挂螺杆动力总成

String Configuration钻具组合

Why operators choose FEODE for deepwater P&A 国际作业商选择远东弃井的原因

Field-validated across the South China Sea 南海全海域实战验证

From spud to seabed.One run-in. 一趟下入，从甲板到海底井口。

Planning a deepwater P&A operation? 规划深水弃井作业？

How the outside-suspension tool
recovers a subsea wellhead外悬挂工具如何
回收水下井口

From spud to seabed.
One run-in. 一趟下入，
从甲板到海底井口。