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Slurry circulating system and method of workover rig

A circulation system and workover rig technology, applied in earthwork drilling, wellbore flushing, wellbore/well components, etc., can solve problems such as high difficulty in relocation and installation, insufficiently compact structure, large footprint, etc., and achieve performance adjustment And the effect of convenient and fast regulation, compact structure and small footprint

Pending Publication Date: 2022-04-29
成都大有石油钻采工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a mud circulation system and method for a workover rig, which solves the problems of inconvenient regulation, insufficient compact structure, high difficulty in relocation and installation, and large floor area of ​​the existing mud circulation system

Method used

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  • Slurry circulating system and method of workover rig

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Embodiment 1

[0043] As a preferred embodiment of the present invention, this embodiment provides a mud circulation system for a workover rig, including six circulation tanks, a weight pump 6, a mud pump 14, an output pipe network and a suction pipe network, and the six circulation tanks They are No. 1 tank 3, No. 2 tank 8, No. 3 tank 13, No. 4 tank 12, No. 5 tank 16 and No. 6 tank 18. The No. 1 tank 3 is equipped with vibrating screen 4, grit chamber and degassing tank. Tank 7 and No. 2 tank 8 are provided with a gravity settling bin and an upper water bin 15, No. 3 tank 13, No. 5 tank 16 and No. 6 tank 18 are each provided with a water upper bin 15, and No. 4 tank 12 is provided with a grouting bin 11 And the upper water bin 15, the mud pump 14 is connected with the upper water bin 15 in each circulation tank through the external pipeline, the grouting pump is arranged in the grout bin 11, the gravity sedimentation tank is arranged in the gravity sedimentation bin, and the circulation tank...

Embodiment 2

[0046] As another preferred embodiment of the present invention, refer to the attached figure 1 , this embodiment provides a mud circulation system for a workover rig, including six circulation tanks, a weight pump 6, a mud pump 14, an output pipe network and a suction pipe network, and the six circulation tanks are No. 1 tank 3, No. 2 tank respectively No. tank 8, No. 3 tank 13, No. 4 tank 12, No. 5 tank 16 and No. 6 tank 18, the No. 1 tank 3 is provided with a vibrating screen 4, a grit chamber and a degassing bin 7, and No. 2 tank 8 is provided with There are gravity settling bins and upper water bins 15, No. 3 tank 13, No. 5 tank 16 and No. 6 tank 18 are equipped with an upper water bin 15, and No. 4 tank 12 is equipped with a grouting bin 11 and an upper water bin 15, and a mud pump 14 is connected with the upper water bin 15 in each circulation tank through an external pipeline, a grouting pump is arranged in the grout bin 11, a gravity sedimentation tank is arranged in ...

Embodiment 3

[0049] As another preferred embodiment of the present invention, this embodiment provides a mud circulation system for a workover rig, including six circulation tanks, a weight pump 6, a mud pump 14, an output pipe network and a suction pipe network, the six The circulation tanks are No. 1 tank 3, No. 2 tank 8, No. 3 tank 13, No. 4 tank 12, No. 5 tank 16 and No. 6 tank 18. The No. 1 tank 3 is provided with a vibrating screen 4, a grit chamber and Degassing bin 7, No. 2 tank 8 are provided with gravity settling bin and upper water bin 15, No. 3 tank 13, No. 5 tank 16 and No. 6 tank 18 are each provided with a upper water bin 15, and No. 4 tank 12 is provided with grouting Bin 11 and upper water bin 15, mud pump 14 is connected with upper water bin 15 in each circulation tank through external pipelines, grouting pump is arranged in said grout bin 11, gravity settling tank is arranged in gravity sedimentation bin, and said circulation Interconnected suction pipes are arranged bet...

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Abstract

The invention discloses a workover rig slurry circulation system and method, and relates to the technical field of well drilling corollary equipment, the workover rig slurry circulation system comprises six circulation tanks, a weighting pump, a slurry pump, an output pipe network and a suction pipe network, the six circulation tanks are tanks from one to six, the first tank comprises a vibrating screen, a sand settling bin and a degassing bin, the second tank is provided with a gravity settling bin and a water feeding bin, and the second tank is provided with a water inlet pipe and a water outlet pipe. The third tank, the fifth tank and the sixth tank are each provided with a water feeding bin, the fourth tank is provided with a grouting bin and a water feeding bin, a slurry pump is connected with the water feeding bins in the circulating tanks through external pipelines, grouting pumps are arranged in the grouting bins, gravity settling basins are arranged in the gravity settling bins, suction pipe networks are arranged between the circulating tanks, and output pipe networks are arranged at the bottoms of the circulating tanks. The suction pipe network and the output pipe network are both provided with valves, the weighting pump is communicated with all the circulation tanks through the output pipe network and the suction pipe network, and the problems that an existing slurry circulation system is not compact enough in structure, high in moving and installing difficulty, large in occupied area and inconvenient to regulate and control are solved.

Description

technical field [0001] The invention relates to the technical field of drilling supporting equipment, in particular to a mud circulation system and method for a workover rig. Background technique [0002] In oil drilling operations, drilling fluid plays the role of storage, deployment, removal of cuttings and sand particles, and control of solid phase content. It is important to ensure the safety of drilling operations and improve the efficiency of drilling and workover. ensure. Drilling fluid purification system is an important supporting device to maintain and maintain the performance of drilling fluid. Its main functions: one is to separate the impurities in the drilling fluid, such as gas, silt, cuttings, etc., to ensure the specific gravity of the drilling fluid; the other is to add ash and chemical additives to the drilling fluid to make the drilling fluid reach the ideal properties such as density and viscosity. [0003] In the normal oil testing and workover proce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B21/06
CPCE21B21/065E21B21/067E21B21/068
Inventor 肖庆孙勇刘翔包小平雷波王强田源宋光明
Owner 成都大有石油钻采工程有限公司
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