Screw propulsion type suction anchor wellhead installation device
A technology of screw propulsion and suction anchor, applied in the field of suction anchor, can solve the problem of difficulty in correcting the installation and tilt of suction anchor.
Active Publication Date: 2021-09-21
SUN YAT SEN UNIV
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Problems solved by technology
[0004] The purpose of the present invention is to provide a screw propulsion suction anchor wellhead installation equipment to solve the problem that the installation inclination of the suction anchor is difficult to correct
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[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.
[0032] The present invention provides a kind of helical propulsion type suction anchor wellhead installation equipment, its embodiment is as follows figure 1 , figure 2 , Figure 8 and Figure 9 As shown, it includes a drainage pipe 10, a thrust adjustment mechanism 20, a grasping mechanism 30 and a jet mechanism 40; The central axial extension of the anchor wellhead installation equipment; the thrust adjustment mechanism 20 includes a thrust adjustment base 21 and a plurality of propellers 22, the thrust adjustment base 21 is connected with the drain pipe 10, and the plurality of propellers 22 surround the thrust adjustment base 21 Arranged on the side, a plurality of propellers 22 are all set as a structure that can independently control the rotation state; the grabbing ...
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The invention discloses a screw propulsion type suction anchor wellhead installation device which comprises a drainage pipe, a thrust adjusting mechanism, a grabbing mechanism and a jet flow mechanism. The drainage pipe is provided with a thrust adjusting mechanism, a grabbing mechanism and a jet flow mechanism, and the drainage pipe extends in the axial direction of the center of the screw propulsion type suction anchor wellhead installation device; the thrust adjusting mechanism comprises a thrust adjusting base and a plurality of propellers, the thrust adjusting base is connected with the drainage pipe, a plurality of propellers are arranged around the peripheral side of the thrust adjusting base, and the propellers are all arranged to be of structures with the rotating states capable of being independently adjusted and controlled; the grabbing mechanism is used for clamping and fixing a suction anchor; and the jet flow mechanism is arranged at the end, used for extraction operation, of the drainage pipe and used for jetting jet flow. Therefore, when the suction anchor inclines, the propellers at the inclined side of the suction anchor can be controlled to operate, the other propellers are shut down, thrust is generated to control the suction anchor to recover to the horizontal state, and the problem that installation inclination of the suction anchor is difficult to correct is practically solved.
Description
technical field [0001] The invention relates to the technical field of suction anchors, in particular to a helical propulsion suction anchor wellhead installation equipment. Background technique [0002] Before offshore oil and gas exploitation, it is necessary to build a wellhead on the seabed, and then spray a nearly 100-meter-long conduit under the bentonite slurry at the selected site, and carry out subsequent drilling operations through the conduit. After the completion of the well construction, the conduit will participate in the bearing load action. However, in order to fix the conduit, cement slurry needs to be sprayed during the construction process, resulting in a longer construction period and a greater impact on the environment. [0003] In recent years, the engineering field has begun to use the suction anchor foundation as the main load-bearing component of the wellhead, which has the advantages of bearing the gravity of hundreds of tons of mining equipment an...
Claims
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IPC IPC(8): E21B23/01E21B7/18
CPCE21B23/01E21B7/185
Inventor 孙凯马会环林沛元郭成超王复明
Owner SUN YAT SEN UNIV