CN-224202306-U - Seismic source perforating bullet for geological exploration

CN224202306UCN 224202306 UCN224202306 UCN 224202306UCN-224202306-U

Abstract

The utility model provides a seismic source perforating bullet for geological exploration, which relates to the technical field of exploitation operation of petroleum and natural gas and comprises a perforating bullet shell, a seismic source explosive column and an energy-gathering perforating explosive column, wherein the seismic source explosive column is arranged above the perforating bullet shell, the energy-gathering explosive column is arranged below the perforating bullet shell, two explosive loading cavities are arranged at two ends of the perforating bullet shell, the energy-gathering explosive column is filled in one explosive loading cavity, the seismic source explosive column is filled in one explosive loading cavity, annular small grooves are arranged in the two explosive loading cavities, the explosive column and the shell can be firmly combined so as to prevent the explosive column from falling, an explosion hole penetrating an explosion detonating cord is further arranged in the middle of the perforating bullet shell, the energy-gathering perforating explosive column is provided with an energy-gathering cave, the seismic source explosive column is a cylindrical solid explosive column, the energy-gathering negative pressure perforation and the exploration can be completed in one-time well-down construction, any complicated working procedures and difficulties can not be increased in operation, the process is safe and reliable, and the construction cost can be saved, and economic benefit can be increased.

Inventors

MA LIANGZHU
ZHANG SHUAI
KOU XIAOHONG
LI PEIJUN
GONG ZHIPING

Assignees

吉林市双林射孔器材有限责任公司

Dates

Publication Date: 20260505
Application Date: 20250522

Claims (6)

1. The seismic source perforating bullet is used in cooperation with detonating cords and perforating guns and is characterized by comprising a perforating bullet shell, seismic source explosive columns and energy-collecting perforating explosive columns, wherein the seismic source explosive columns are arranged above the perforating bullet shell, the energy-collecting explosive columns are arranged below the perforating bullet shell, the seismic source perforating bullet is detonated through the detonating cords, and when the detonating cords are detonated, the seismic source explosive columns and the energy-collecting perforating explosive columns are detonated simultaneously.
2. The seismic source open-pore bomb for geological exploration according to claim 1, wherein the open-pore bomb shell is provided with a detonating cord penetrating hole for penetrating a detonating cord in the middle, two ends of the detonating cord penetrating hole are provided with detonating holes, the detonating cord penetrating hole penetrates through two drug loading inner cavities through the detonating holes, and a rectangular annular groove is formed in the middle of the open-pore bomb shell.
3. The seismic source open-pore bomb for geological exploration according to claim 1, wherein the two ends of the inside of the open-pore bomb shell are provided with a charging cavity, the upper end is a seismic source charging cavity, and the lower end is an energy-gathering open-pore charging cavity.
4. A seismic source open-pore bomb for geological exploration according to claim 3, wherein the seismic source charging cavity and the energy-collecting open-pore charging cavity are provided with a plurality of annular grooves, the annular groove body is an asymmetric V-shaped groove, the upper area of the annular groove in the seismic source charging cavity is in a horizontal state, and the lower area of the annular groove in the energy-collecting open-pore charging cavity is in a horizontal state.
5. The seismic source open charge for use in geological exploration according to claim 1, wherein said seismic source charge is solid cylindrical.
6. The seismic source open-pore bullet for geological exploration according to claim 1, wherein the energy-gathering explosive column is provided with energy-gathering cavities, the energy-gathering cavities are bell-mouthed, the upper parts of the energy-gathering cavities are cone-angle structures, the mouth parts of the energy-gathering cavities are arc structures, and the tops of the energy-gathering cavities are provided with horizontal structures.

Description

Seismic source perforating bullet for geological exploration Technical Field The utility model relates to the technical field of exploitation operation of petroleum and natural gas, in particular to a seismic source open-pore bomb for geological exploration. Background The geophysical seismic explosive column is mainly used for geophysical exploration and deepwater reef breaking operation of petroleum, natural gas, coal, mineral products and the like, and is used for surveying the dynamic change of a geological structure in an oil well by using the detonation wave change generated by the explosion of the seismic explosive column, and the key is energy release and signal acquisition. The perforating bullet is used for forming negative pressure in an oil-gas well, when the perforating gun is ignited and launched, the liquid column pressure in a shaft is lower than the stratum pressure, the existence of pressure difference is helpful for cleaning perforation holes, and stratum fluid flowing into the perforation holes can take away enough metal fragments, so that a passage for the stratum fluid flowing into the shaft is opened. Sub-atmospheric perforation is also the most common perforation technique since the last 70 th century. At present, conventional focus explosive column and trompil bullet are independent use, and the focus surveys and produces vibration through explosion or other violent modes, and the negative pressure trompil then needs to maintain certain negative pressure environment, and the focus surveys can destroy the required leakproofness of negative pressure environment, leads to unable maintenance negative pressure, and focus explosive column and trompil bullet are processed comparatively loaded down with trivial details simultaneously, and the operation is complicated. In order to solve the above problems, there is a need to develop a seismic source open bomb for geological exploration. Disclosure of utility model The utility model provides a seismic source perforating bullet for geological exploration, which aims to solve the technical problems that the pressure of the perforating bullet is unbalanced and the explosion effect is affected because the traditional seismic source explosive column and the perforating bullet are independently used and vibration generated by the seismic source explosive column can damage the tightness required by the perforating bullet, and the seismic source perforating bullet integrates seismic source exploration and negative pressure perforation, and can complete two functions of seismic source exploration and energy gathering negative pressure perforation at one time. The seismic source perforating bullet is used for geological exploration and matched with detonating cords and perforating guns, and comprises a perforating bullet shell, seismic source explosive columns and energy-collecting perforating explosive columns, wherein the seismic source explosive columns are arranged above the perforating bullet shell, the energy-collecting explosive columns are arranged below the perforating bullet shell, the seismic source perforating bullet is detonated through the detonating cords, and when the detonating cords are detonated, the seismic source explosive columns and the energy-collecting perforating explosive columns are detonated simultaneously. Preferably, the middle part of the perforated shell is provided with a detonating cord hole for penetrating the detonating cord, the two ends of the detonating cord hole are provided with detonating holes, the detonating cord hole penetrates through the two medicine loading inner cavities through the detonating holes, and the middle part of the perforated shell is provided with a rectangular ring groove. Preferably, the two ends of the inside of the open-pore bullet shell are provided with charging cavities, the upper end is a seismic source charging cavity, and the lower end is an energy-collecting open-pore charging cavity. Preferably, the vibration source charging cavity and the energy-collecting open pore charging cavity are both provided with a plurality of annular grooves, the annular groove body is an asymmetric V-shaped groove, the upper area of the annular groove in the vibration source charging cavity is in a horizontal state, and the lower area of the annular groove in the energy-collecting open pore charging cavity is in a horizontal state. Preferably, the seismic charge is solid cylindrical. Preferably, the energy-collecting explosive column is provided with an energy-collecting hole, the energy-collecting hole is bell-mouth-shaped, the upper part of the energy-collecting hole is of a cone angle structure, the mouth part of the energy-collecting hole is of an arc structure, and the top of the energy-collecting hole is provided with a horizontal structure. The utility model has the beneficial effects that the utility model provides the seismic source open bomb for geological exploration, which has the followi