Suspended screw pump discharge wellhead operation desk

• Main Authors: GUAN LIJUN, LI JIZHI, LI JIANZHOU, HE ZEJUN, REN JINSHAN, DAI YIDING, WU YANHUA, YANG SHAOKUN
• Format: Patent
• Language: English
• Published: 21.01.2015
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

The utility model discloses a suspended screw pump discharge wellhead operation desk which is used for tripping out/in a screw pump sucker rod when a testing string above an underwater testing tree is lifted by a deepwater floating drilling platform. The suspended screw pump discharge wellhead operation desk comprises a suspension mechanism, a locking mechanism and a wellhead operation desk body, wherein the suspension mechanism is arranged on the floating drilling platform, the locking mechanism is connected with the suspension mechanism and used for clamping the testing string, and the wellhead operation desk body is arranged above the locking mechanism. The locking mechanism is lifted by the suspension mechanism which is connected with the locking mechanism and arranged on the floating drilling platform, the testing string is further lifted and cannot press the underwater testing tree for a long time, a special sealing structure on the underwater testing tree cannot be avoided, and discharge of a screw pump on the whole floating drilling platform cannot be affected.