A high-frequency weekly pendulum card solution tool
A jam-releasing and high-frequency technology, which is applied in wellbore/well components, earthwork drilling and mining, etc., can solve the problem that the axial jarring tool cannot effectively release jammed fish and salvage operations, and achieve the realization of fish jamming and salvage operations , Simple and reliable operation, reliable work effect
Inactive Publication Date: 2018-12-21
SOUTHWEST PETROLEUM UNIV
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Problems solved by technology
[0005] The purpose of the present invention is to provide a high-frequency pendulum tool to solve the problem that the axial vibration tool cannot effectively release the stuck fish and complete the fishing operation.
Method used
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[0014] Such as figure 1 As shown, a high-frequency pendulum unblocking tool of the present invention is composed of an upper joint 1, a fastening cap 2, a turbine assembly 3, a power housing 4, a bearing a5, a rotating shaft 6, a transmission pin 7, a steel ball 8, Nut 9, connecting cylinder 10, bearing b11, transmission shaft 12, output cylinder 13, bearing c14 and anti-drop cap 15; its structural features are: the upper end of the upper joint 1 is connected with the upper salvage string with screws, and the lower end of the output cylinder 13 It is connected with the threaded thread of the lower part of the fishing tool; the upper end of the rotating shaft 6 is set as a male thread, the upper part of the rotating shaft 6 is set as a stepped shaft, and three oblique holes are uniformly arranged in the circumferential direction below the upper step shaft of the rotating shaft 6 to connect the inner and outer spaces, and there are three rotating shafts 6 A circle of raised step...
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The invention relates to a high-frequency circumferential-swing jamming releasing tool used for salvage operation in the petroleum and gas industry. The problem that an axial shock tool cannot effectively release jamming of a drill tool to finish the salvage operation is solved. According to the technical scheme, the upper end of an upper joint is connected with an upper salvage string in a screw thread mode; the lower end of an output tube is connected with a lower salvage tool in a screw thread mode; a step shaft on the upper portion of a rotary shaft is sleeved with a turbine assembly; the lower portion of the outer circle of the rotary shaft is sleeved with an inner cavity of a transmission shaft; eight transmission pins are sequentially installed into a cavity formed by eight pin grooves in the middle of the outer circle of the rotary shaft and eight pin sliding grooves in the upper portion of the inner cavity of the transmission shaft; two steel balls are put into two threaded holes in the middle of a connection tube; a male spline on the lower portion of the outer circle of the transmission shaft is sleeved with a female spline on the upper portion of an inner cavity of the output tube; a bearing c is installed on a protrusive step on the middle of the inner cavity of the output tube; and an anti-falling cap is connected with the lower end of the rotary shaft in a screw thread mode. Circumferential high-frequency jamming releasing can be achieved, and the drill tool jamming releasing salvage operation is achieved effectively; and control is achieved through the flow of a drilling fluid, and operation is easy and reliable.
Description
technical field [0001] The invention relates to a high-frequency swing tool used for salvage operations in the petroleum and natural gas industry. Background technique [0002] In the oil and gas industry, various downhole accidents will occur during the drilling and development of oil and gas wells. The accidents of fish falling to the bottom of the well due to the breakage of the drill string and tubing In the event of a fish accident, it is necessary to salvage the fallen fish. In the event of a serious fish falling accident, if it cannot be salvaged in time, it may cause the oil and gas well to be scrapped and cause huge economic losses. It is of great significance to carry out salvage operations on the ground. [0003] Commonly used tools for salvage operations include spears and canisters, etc., which are used to catch the fallen fish and lift the salvage string to complete the salvage operation. However, in many cases, the broken drill string and tubing will be stu...
Claims
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IPC IPC(8): E21B31/00
CPCE21B31/00
Inventor 张梁李镕成肖瑶梁政赵勇
Owner SOUTHWEST PETROLEUM UNIV